ATTACHMENT-TYPE AUXILIARY DEVICE USING MAGNET

Information

  • Patent Application
  • 20240349858
  • Publication Number
    20240349858
  • Date Filed
    July 06, 2023
    a year ago
  • Date Published
    October 24, 2024
    a month ago
Abstract
Disclosed herein is an attachment-type auxiliary device using a magnet. The attachment-type auxiliary device is used in conjunction with a product having a built-in magnetic substance. The attachment-type auxiliary device includes: a detachable part including a detachable body, and a magnet configured to be magnetically coupled with the magnetic substance; an accessory part coupled to the rear side of the detachable body, and configured to form an accommodation space and to support the product so that the product is placed in a tilted state; and a coating part made of a material having slip resistance, and formed on the front surface of the detachable body.
Description
BACKGROUND
1. Technical Field

The present disclosure described herein relates to an attachment-type auxiliary device, and more particularly, to an attachment-type auxiliary device using a magnet that is used in conjunction with a terminal.


2. Description of the Related Art

Recently, attachment-type auxiliary devices that can be selectively attached to and detached from terminals through magnetism with magnetic substances built into the terminals have been used in conjunction with terminals including smartphones and tablets. Through this, there is improved the portability of attachment-type auxiliary devices used in conjunction with terminals.


However, a conventional attachment-type auxiliary device attached to a terminal has the risk of being detached and lost due to external impact in the state of being in close contact with the terminal, and also has the disadvantage of being more easily detached when external force is applied in a specific direction. A conventional accessory attached to a terminal through an adhesive material has a disadvantage in that it is difficult to detach the accessory from the terminal.


In connection with this, Korean Patent No. 10-1851292 discloses a “card case for a smart device equipped with a ring in an integrated form,” and Korean Patent Application Publication No. 10-2022-0070729 discloses a “card wallet for a mobile phone.”


However, the conventional technologies do not disclose a technology that can be easily attached to and detached from a terminal through magnetism and can also effectively prevent the phenomenon of being separated while sliding by external force in a magnetically attached state.


SUMMARY

An object of the present disclosure is to provide an attachment-type auxiliary device using a magnet that can stably maintain the state of being magnetically coupled to a terminal through a coating part having various types of shapes.


In addition, objects of the present disclosure are not limited to the object described above, and it is obvious that other objects may be derived from the following description.


According to an aspect of the present invention, there is provided an attachment-type auxiliary device using a magnet, the attachment-type auxiliary device being used in conjunction with a product having a built-in magnetic substance, the attachment-type auxiliary device including: a detachable part including a detachable body, and a magnet configured to be magnetically coupled with the magnetic substance; an accessory part coupled to the rear side of the detachable body, and configured to form an accommodation space and to support the product so that the product is placed in a tilted state; and a coating part made of a material having slip resistance, and formed on the front surface of the detachable body.


The accessory part may include a pocket that is coupled with the detachable body with the accommodation space disposed therebetween so that it is formed to cover the accommodation space.


The accessory part may include a rotation member that is rotatably coupled to the rear side of the detachable body through a torque hinge.


The coating part may include: a first non-slip member formed in a ring shape; and a second non-slip member formed in a shape surrounding both sides and lower portion of the first non-slip member.


The coating part may further include a plurality of additional second non-slip members that are formed to be spaced apart from each other by the same distance as the circumferential lengths thereof are sequentially increased.


The coating part may further include a plurality of third non-slip members that are formed in the shape of circular arcs extending long to both sides and are disposed to be spaced apart on different horizontal lines under the second non-slip member.


The coating part may further include a plurality of fourth non-slip members that are formed to extend obliquely from corresponding positions between the lower corners of the detachable body and the third non-slip members.


The coating part may further include fifth non-slip members that are formed to extend obliquely from corresponding positions between the upper corners of the detachable body and the second non-slip member.


The accommodation space may be formed to be opened upward, and a part of the lower portion of the accessory part may be depressed to form a lower hole that connects the accommodation space and an external space.


A part of the center of the upper portion of the detachable body may be depressed to form a through hole that connects the accommodation space and the external space.


The magnet may be formed in a ring shape surrounding the through hole.





BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features, and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:



FIG. 1 is a diagram showing a state in which an attachment-type auxiliary device using a magnet according to an embodiment of the present specification is used;



FIG. 2 is an exploded perspective view of the attachment-type auxiliary device using a magnet shown in FIG. 1;



FIG. 3 is an exploded perspective view showing the state of a case to which the attachment-type auxiliary device using a magnet shown in FIG. 1 is attached and a terminal on which the case is worn;



FIG. 4 is a front view of the attachment-type auxiliary device using a magnet shown in FIG. 1;



FIG. 5 is a schematic diagram showing the scalability of the form of a coating part formed on the attachment-type auxiliary device using a magnet shown in FIG. 1;



FIG. 6 is a front view of an attachment-type auxiliary device using a magnet according to another embodiment of the present specification;



FIG. 7 is a front view of an attachment-type auxiliary device using a magnet according to still another embodiment of the present specification;



FIG. 8 is a perspective view of an attachment-type auxiliary device using a magnet according to still another embodiment of the present specification;



FIG. 9 is a front view of an attachment-type auxiliary device that is used as a control group in tests for the attachment-type auxiliary devices using a magnet shown in FIGS. 1, 6, and 7;



FIG. 10 is a schematic diagram of an abrasion resistance test device used for tests for the attachment-type auxiliary devices using a magnet shown in FIGS. 1, 6, 7, and 9;



FIG. 11 is a schematic diagram of a horizontal resistance test device used for tests for an attachment-type auxiliary device without a coating part and the attachment-type auxiliary devices using a magnet shown in FIGS. 1, 6, 7, and 9;



FIG. 12 is a schematic diagram of a vertical coupling test device used for tests for an attachment-type auxiliary device without a coating part and the attachment-type auxiliary devices using a magnet shown in FIGS. 1, 6, 7, and 9; and



FIG. 13 is a schematic diagram of a coating device used for the application of a coating part that is applied onto the attachment-type auxiliary devices using a magnet shown in FIGS. 1, 6, 7, 8, and 9.





DETAILED DESCRIPTION

Hereinafter, the configurations, operations and effects of attachment-type auxiliary devices using a magnet according to embodiments will be described with reference to the accompanying drawings. For reference, throughout the accompanying drawings, each component is omitted or schematically illustrated for convenience and clarity, and the size of each component does not reflect the actual size thereof. In addition, like reference numerals refer to like components throughout the specification, and some reference numerals for like components in each drawing will be omitted.


Referring to FIGS. 1 to 5, an attachment-type auxiliary device 100 using a magnet includes a detachable part 200, an accessory part 300, and a coating part 400.


Referring to FIG. 4, in the following description of the attachment-type auxiliary device 100 using a magnet, a first direction 1 refers to a direction extending obliquely toward one side and upper portion of the detachable part 200, and a second direction 2 refers to a direction extending obliquely toward the other side and upper portion of the detachable part 200.


In the following description of the attachment-type auxiliary device 100 using a magnet, a third direction 3 refers to a direction extending obliquely toward one side and lower portion of the detachable part 200, and a fourth direction 4 refers to a direction extending obliquely toward the other side and lower portion of the detachable part 200.


The attachment-type auxiliary device 100 using a magnet is detachably coupled to the rear surface of a terminal 5 having a built-in magnetic substance through built-in magnets 220 and 230. There is an advantage in that a personal item 10, accommodated in the accessory part 300, and the terminal 5 may be carried with one hand.


The attachment-type auxiliary device 100 using a magnet improves fixation force and adhesive force for the rear surface of the terminal 5 through the coating part 400 applied onto the front surface of the attachment-type auxiliary device 100, and increases the slip resistance of the detachable part 200 to the rear surface of the terminal 5.


A phenomenon in which the attachment-type auxiliary device 100 using a magnet slides along the rear surface of the terminal 5 in the state of being magnetically coupled to the terminal 5 and being in close contact with the surface of the terminal 5 is prevented by the coating part 400.


The attachment-type auxiliary device 100 using a magnet may be attached to the rear surface of a case 7 into which a magnetic substance having different front and rear polarities is built, and the case 7 is worn on the terminal 5 and formed to cover the edges and rear side of the terminal 5.


When the attachment-type auxiliary device 100 using a magnet is attached to the terminal 5 corresponding to a smartphone, the front side of the attachment-type auxiliary device 100 using a magnet is magnetically coupled with the terminal 5 while being in close contact with the rear surface of the terminal 5 except for the portion where a camera module 6 is installed.


The attachment-type auxiliary device 100 using a magnet magnetically coupled to the terminal 5 is prevented from sliding and moving in various directions due to the external force that is generated in the process of discharging the personal item 10 accommodated in the accommodation space 320 to the outside or inserting it into the accommodation space 320 again.


The attachment-type auxiliary device 100 using a magnet is coupled to the terminal 5 by the adhesive force of the coating part 400 formed on the front side of the attachment-type auxiliary device 100 and the magnetic force of the magnets 220 and 230 built into the attachment-type auxiliary device 100, and the slip resistance against external force is improved by the adhesive force of the coating part 400 and the magnetic force of the magnets 220 and 230.


Referring to FIGS. 1 to 4, the detachable part 200 includes a detachable body 210, and the magnets 220 and 230.


The detachable part 200 is formed in the shape of a pad. In the detachable part 200, there is formed a through hole 201 obtained by recessing a part of the upper portion of the rear surface forward by a predetermined distance and formed to allow a rear space and a front space to communicate with each other, and the magnets 220 and 230 are built into the inner portion of the detachable part 200 corresponding to a portion around the through hole 201.


A reinforcing member in the form of a square plate having relatively high rigidity may be disposed inside the detachable part 200, and may be coupled to the detachable part 200. Through this, there is an advantage in that the detachable part 200 can be made of a relatively soft material.


When a reinforcing member is inserted into the detachable part 200, the magnets 220 and 230 are formed to be coupled with the detachable body 210 in the state of being inserted into grooves or holes formed in the reinforcing member.


The detachable body 210 is formed in the shape of a rectangular pad extending vertically to correspond to the shape of the terminal 5 including a smartphone, the edges of the detachable body 210 corresponding to the corners of the detachable body 210 are tapered to be rounded, and the front side of the detachable body 210 is made of a polymer material that has relatively higher friction and adhesion than the rear side thereof.


Referring to FIG. 5, the shape of the detachable body 210 may be fabricated to have a relatively large area when it is fabricated to be used in conjunction with the terminal 5 corresponding to a tablet having a relatively large area rather than the terminal 5 corresponding to a smartphone.


Alternatively, the detachable body 210 may be fabricated to have a relatively small area when it is fabricated to be used in conjunction with the terminal 5 corresponding to a foldable phone having a relatively small rear or front area while being folded.


The through hole 201 is formed such that a part of the rear surface of the detachable body 210 having an elliptical shape extending vertically and located at the center of the upper portion of the detachable body 210 is depressed forward by a predetermined distance and allows the front space and rear space of the detachable body 210 to communicate with each other.


The magnet 220 is formed in a ring shape surrounding the through hole 201, is built into and coupled to the detachable body 210, and is fabricated to be magnetically coupled with a magnetic substance built into the terminal 5.


When the front surface of the detachable body 210 is disposed adjacent to the rear surface of the terminal 5, the magnet 220 is moved toward the terminal 5 or the magnetic substance built into the case 7 through magnetism, and moves the detachable body 210 toward the terminal 5 or the case 7.


The magnetic force between the magnet 220 and the magnetic substance causes the coating part 400 coupled to the front surface of the detachable body 210 to come into close contact with the rear surface of the terminal 5, and the slip resistance between the detachable body 210 and the terminal 5 is increased by the adhesive force of the coating part 400.


The magnet 230 is built into the detachable body 210 at a position downwardly spaced apart from the magnet 220, is formed in the shape of an elliptical plate extending vertically, and may be separated from the detachable body 210 or additionally built into the detachable body 210 depending on the shape or size of the detachable body 210.


The magnetic substances built into the case 7 are formed to have the same shapes as the magnets 220 and 230, respectively, in the state in which the attachment-type auxiliary device 100 using a magnet is attached to the rear surface of the case 7, and are arranged on the same horizontal lines as the magnet 220 and 230, respectively.


Referring to FIGS. 1 to 3, the accessory part 300 includes a pocket 310 and a guide member 315.


The accessory part 300 is formed in the shape of a rectangular plate in which a part of the upper edge of the accessory part 300 protrudes upward and a portion of the lower edge is recessed upward, and both sides and part of the lower edge of the accessory part 300 are coupled to the rear surface of the detachable part 200 with the accommodation space 320 being disposed therebetween.


The pocket 310 is formed in the shape of a square plate in which the front and rear surfaces thereof have relatively large surface areas. A part of the lower edge and both side edges of the pocket 310 are coupled with a part of the lower edge and both side edges of the detachable body 210, respectively.


A part of the lower edge and both side edges of the pocket 310 are preferably coupled via a sewing device in the state of being in surface contact with the rear surface of the detachable body 210 for the purpose of improving external aesthetics.


One end of the guide member 315 is formed in the shape of a rectangular plate extending long on both sides and connected to the upper edge of the pocket 310. The other end of the guide member 315 extends upward by a predetermined distance, and is disposed on the same horizontal line as the through hole 201. The upper edge of the other end of the guide member 315 is formed to be horizontal to the upper and lower edges of the terminal 5.


The other end of the guide member 315 is disposed on the same horizontal line as a rear portion of the through hole 201 exposed rearward in the upper portion of the pocket 310, and the through hole 201 is not exposed to the field of view when the pocket 310 is viewed from a location behind the pocket 310.


The guide member 315 covers the through hole 201, and thus provides the advantages of improving the aesthetics of the rear side of the attachment-type auxiliary device 100 using a magnet and preventing damage to the terminal 5 exposed to the outside through the through hole 201.


The accommodation space 320 is formed between the detachable part 200 and the accessory part 300 with the accessory part 300 and the detachable part 200 coupled to each other, and is connected to an external space through a top opening, and the personal item 10 is inserted into the accommodation space 320 through the top opening.


A lower hole 330 is formed to connect the accommodation space 320 with a space behind the pocket 310 by recessing a part of the rear surface and part of the lower edge of the pocket 310 in the form of a semicircle, convex upward and located at the center of the lower portion, forward by a predetermined distance.


When the card-shaped personal item 10 is inserted into the accommodation space 320, a part of the lower portion of the personal item 10 is exposed to the space behind the pocket 310 through the lower hole 330. When the personal item 10 is pushed upward through the lower hole 330, a part of the upper portion of the personal item 10 protrudes to the upper portion of the detachable body 210.


The part of the upper portion of the personal item 10 is arranged to be spaced apart from the rear surface of the terminal 5 with a predetermined space being therebetween in the state in which it protrudes upward from the detachable body 210. A user may conveniently grip the upper portion of the personal item 10 through the space and detach the personal item 10 from the accommodation space 320.


Meanwhile, the accessory part 300 is formed in the shape of a square plate excluding the guide member 315 and the lower hole 330. The lower edge and both side edges of the accessory part 300 may be coupled to the lower edge and both side edges of the detachable body 210, respectively.


Referring to FIGS. 1 to 5, the coating part 400 includes a first non-slip member 410, second non-slip members 510, 520, and 530, third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680, fourth non-slip members 710, 720, 730, and 740, and fifth non-slip members 810, and 820.


The coating part 400 is made of silicone, polymer, or a natural material having slip resistance. Only some shapes selected from a concentric circular pattern extending around the magnet 220 and corresponding to the front area and shape of the detachable part 200 are formed and applied onto the detachable part 200.


The coating part 400 is formed such that only some shapes selected from the concentric circular pattern extending around a part of the front surface of the detachable part 200 and corresponding to the front area and shape of the detachable part 200 are formed to be applied onto the front surface of the detachable part 200.


Referring to FIG. 5, the concentric circular pattern of the coating part 400 is preferably formed to have the same center as the magnet 220 that is built into the detachable body 210. Depending on the size and shape of the detachable body 210, the shape of the coating part 400 applied onto the detachable body 210 is changed.


For example, when a detachable body 210 having a rectangular shape is fabricated to be used for a tablet, the shape of the coating part 400 applied onto the front surface of the detachable body 210 is the shape of the pattern 405 shown in FIG. 5.


Therefore, some shapes of the concentric circular pattern of the coating part 400 applied onto the detachable body 210 are changed when only the position of the magnet 220 is changed without a change in the shape and area of the detachable body 210.


In addition, some shapes of the concentric circular pattern of the coating part 400 applied onto the detachable part 200 are changed even when the shape or area of the detachable part 200 is changed and the position of the magnet 220 is not changed.


The coating part 400 applied onto the detachable part 200 has the advantages of reinforcing the magnetic coupling force between the magnet 220 and the magnetic substance of the terminal 5 and enhancing the slip resistance of the detachable part 200 in close contact with the terminal 5 in any one of directions toward the upper portion, the lower portion, one side, and the other side, a first direction 1, a second direction 2, a third direction 3, and a fourth direction 4.


The first non-slip member 410, the second non-slip members 510, 520, and 530, the third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680, the fourth non-slip member 710, 720, 730, and 740, and the fifth non-slip members 810, and 820 adopt some shapes selected from the concentric circular pattern around the magnet 220, and are applied onto the front surface of the detachable body 210.


When the area or shape of the detachable body 210 is changed, the some shapes selected as the pattern of the coating part 400 from the concentric circular pattern may be relatively reduced or expanded.


For example, when the area of the detachable body 210 is relatively increased, one or more additional non-slip members may be applied in addition to the first non-slip member 410, the second non-slip members 510, 520, and 530, the third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680, the fourth non-slip member 710, 720, 730, and 740, and the fifth non-slip members 810, and 820.


In addition, when the area of the detachable body 210 is relatively increased, the shapes of the second non-slip members 510, 520, and 530, the third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680, the fourth the non-slip members 710, 720, 730, and 740, and the fifth non-slip members 810, and 820 may be changed into circular shapes.


The first non-slip member 410 is made of a silicon material having high adhesive force, is applied onto the front surface of the detachable body 210 in the form of an elliptical ring surrounding the through hole 201, and is preferably fabricated such that the thickness between the front and rear surfaces thereof is between 0.05 mm and 0.15 mm.


The first non-slip member 410 is formed to have a semicircular cross-sectional shape protruding forward in a hemispherical shape, is fabricated in the shape of an elliptical ring extending long vertically, and may be deformed to various shapes including a ring and a polygon.


The first non-slip member 410 is formed in a shape surrounding the through hole 201, and is coupled to the front surface of the detachable body 210. Accordingly, the first non-slip member 410 has the advantage of providing adhesive force in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


The plurality of second non-slip members 510, 520, and 530 are made of a silicon material having high adhesive force, are formed in a form surrounding both sides and bottom of the first non-slip member 410, and are coupled to the front surface of the detachable body 210.


The second non-slip members 510, 520, and 530 are fabricated to have the same center and different circumferential lengths, and are coupled to the detachable body 210 so that the top ends thereof are disposed on the same horizontal line.


More specifically, the second non-slip member 510 has a horseshoe shape surrounding both sides and lower portion of the first non-slip member 410 in the state of being spaced apart from the first non-slip member 410 by a predetermined distance 14.


The second non-slip member 510 is formed in a shape surrounding both sides and lower portion of the first non-slip member 410. Accordingly, the second non-slip member 510 has the advantage of providing slip resistance in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


The second non-slip member 520 is formed in a horseshoe shape surrounding both sides and lower part of the second non-slip member 510 in the state of being spaced apart from the second non-slip member 510 by a predetermined distance 14, and is applied onto the detachable body 210 so that the top ends thereof are disposed on the same horizontal line as the top ends of the second non-slip member 510.


The second non-slip member 530 is formed in a horseshoe shape surrounding both sides and lower portion of the second non-slip member 520 in the state of being spaced apart from the second non-slip member 520 by a predetermined distance 14, and is coupled to the detachable body 210 so that the top ends thereof are disposed on the same horizontal line as the top ends of the second non-slip member 520.


The second non-slip members 510, 520, and 530 are coupled to the detachable body 210 around the first non-slip member 410, and thus has the has the advantage of providing slip resistance in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in the directions toward the upper portion, the lower portion, one side, the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


Only the first non-slip member 410 and the second non-slip member 510 may be formed on the front surface of the detachable body 210. As the second non-slip members 520 and 530 are additionally applied according to the area of the detachable body 210, the plurality of second non-slip members 510, 520, and 530 may be applied onto the detachable body 210.


In addition, when the position of the magnet 220 is disposed on a relatively low horizontal line or the area of the detachable body 210 is relatively increased, the shapes of the second non-slip members 510, 520, and 530 may be formed in the shape of elliptical rings having different circumferential lengths.


The third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680 are formed in the shape of arcs convex downward while extending long to both sides, and are disposed on different horizontal lines to be spaced apart from each other by the same distance 14 below the second non-slip member 530.


The third non-slip member 610 is formed in the shape of an arc convex downward and surrounding a part of the lower portion of the second non-slip member 530 at a position spaced apart from the lower portion of the second non-slip member 530 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 620 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 610 at a position spaced apart from the lower portion of the third non-slip member 610 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 630 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 620 at a position spaced apart from the lower portion of the third non-slip member 620 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 640 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 630 at a position spaced apart from the lower portion of the third non-slip member 630 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 650 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 640 at a position spaced apart from the lower portion of the third non-slip member 640 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 660 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 650 at a position spaced apart from the lower portion of the third non-slip member 650 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 670 is formed in the shape of an arc convex downward and surrounding the lower portion of the third non-slip member 660 at a position spaced apart from the lower portion of the third non-slip member 660 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The third non-slip member 680 is formed in the shape convex downward and surrounding the lower portion of the third non-slip member 670 at a position spaced apart from the lower portion of the third non-slip member 670 by the predetermined distance 14, and is coupled to the front surface of the detachable body 210.


The plurality of third non-slip member 610, 620, 630, 640, 650, 660, 670, and 680 have the advantage of providing adhesive force in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


Meanwhile, when the position of the magnet 220 is disposed on a relatively low horizontal line, the number of the plurality of third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680 may be reduced, and a third non-slip member having an upwardly convex shape may be formed at a position corresponding to the upper portion of the magnet 220.


The fourth non-slip member 710 extends obliquely toward one side and upper portion of the detachable body 210 while being in parallel with a part of the adjacent side of the third non-slip member 680 at a corresponding position between the lower corner of the side of the detachable body 210 and the third non-slip member 680, and is coupled to the front surface of the detachable body 210.


The fourth non-slip member 720 is formed to extend obliquely toward one side and upper portion of the detachable body 210 to be shorter than the fourth non-slip member 710 while being in parallel with the fourth non-slip member 710 at a position corresponding to one side of the fourth non-slip member 710 and a portion below the fourth non-slip member 710, and is coupled to the front surface of the detachable body 210.


The fourth non-slip members 710 and 720 have the advantage of providing slip resistance in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


The fourth non-slip member 730 extends obliquely toward the other side and upper portion of the detachable body 210 while being in parallel with a part of the other adjacent side of the third non-slip member 680 at a corresponding position between the lower corner of the other side of the detachable body 210 and the third non-slip member 680, and is coupled to the front surface of the detachable body 210.


The fourth non-slip member 740 is formed to extend obliquely toward the other side and upper portion of the detachable body 210 to be shorter than the fourth non-slip member 730 while being in parallel with the fourth non-slip member 730 at a position corresponding to the other side of the fourth non-slip member 730 and a portion below the fourth non-slip member 730, and is coupled to the front surface of the detachable body 210.


The fourth non-slip members 730 and 740 have the advantage of providing slip resistance in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, and the fourth direction 4.


In addition, the plurality of third non-slip members 610, 620, 630, 640, 650, 660, 670, and 680 and the fourth non-slip members 710, 720, 730, and 740 have the advantage of significantly improving slip resistance against sliding in the directions toward the upper and lower portions, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4, which cannot be sufficiently handled only by the magnetic force of the magnet 230 extending long vertically.


The fifth non-slip member 810 extends obliquely toward the other side and upper portion of the detachable body 210 while being in parallel with a part of one upper end of the second non-slip member 530 at a corresponding position between the upper corner of one side of the detachable body 210 and the second non-slip member 530, and is coupled to the front surface of the detachable body 210.


The fifth non-slip member 820 extends obliquely toward one side and upper portion of the detachable body 210 while being in parallel with a part of the other upper end of the second non-slip member 530 at a corresponding position between the upper corner of the other side of the detachable body 210 and the second non-slip member 530, and is coupled to the front surface of the detachable body 210.


The fifth non-slip members 810 and 820 have the advantage of providing adhesive force in order to resist a phenomenon in which the detachable body 210 in close contact with the terminal 5 slides in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


Therefore, the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 are formed on the front surface of the detachable body 210 in close contact with the terminal 5, and have the advantage of providing slip resistance in order to resist a phenomenon in which the detachable body 210 slides and moves in any one of the directions toward the upper portion, the lower portion, one side, and the other side, the first direction 1, the second direction 2, the third direction 3, and the fourth direction 4.


The first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 may be applied such that the thickness between the front and rear surfaces of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 becomes 0.05 to 0.15 mm.


In addition, a cross-sectional length 12 in the state in which the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 are cut in directions vertical to the directions in which the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 extend is preferably 1 mm.


Furthermore, the distance 14 between the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 is preferably 2 mm.


For example, the distance 14 between the third non-slip member 610 and the third non-slip member 620 is 2 mm, the distance 14 between the second non-slip member 530 and the third non-slip member 610 is 2 mm, and the distance between the third non-slip member 680 and the fourth non-slip member 710 is 2 mm.


Referring to FIG. 6, the attachment-type auxiliary device 110 using a magnet according to the present embodiment is substantially the same as the attachment-type auxiliary device 100 using a magnet shown in FIGS. 1 to 5 except that sixth non-slip members 910 and 920 are added to the coating part 404 and the coating part 404 is matted. Accordingly, the same reference numerals and names will be used, and redundant descriptions will be omitted.


The sixth non-slip members 910 and 920 are formed in a shape surrounding a through hole 201 or a magnet 220 at a corresponding position between a first non-slip member 410 and the through hole 201, and are coupled to the front surface of the detachable body 210 in the state of being arranged in the shape of concentric circles.


In the attachment-type auxiliary device 110 using a magnet, the thickness between the rear surfaces of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 and the front surfaces of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820, which are coupled to the detachable body 210, is 0.1 to 0.3 mm.


In the attachment-type auxiliary device 110 using a magnet, the sixth non-slip members 910 and 920 are formed, and the surfaces of the sixth non-slip members 910 and 920 and the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 are matted to become matte through a corrosion or abrasion operation.


Since the surfaces of the sixth non-slip members 910 and 920 and the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 are matted, fine holes are formed on the surfaces.


The close contact area between the sixth non-slip members 910 and 920 and the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 and the terminal 5 is smaller than that in the attachment-type auxiliary device 100 using a magnet due to the above-described fine holes, with the result that the adhesive force for the terminal 5 is relatively reduced.


Although the attachment-type auxiliary device 110 using a magnet has lower adhesive force than the attachment-type auxiliary device 100 using a magnet, the addition of the sixth non-slip members 910 and 920 increases the adhesive force by a predetermined amount, thereby providing the effect of reinforcing slip resistance.


Referring to FIG. 7, an attachment-type auxiliary device 120 using a magnet according to the present embodiment is substantially the same as the attachment-type auxiliary device 100 using a magnet shown in FIGS. 1 to 5 except for the thickness 15 of first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 included in a coating part 407. Accordingly, the same reference numerals and names will be used, and redundant descriptions will be omitted.


In the attachment-type auxiliary device 120 using a magnet, the thickness 15 between the rear surfaces of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 and the front surfaces of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820, which are coupled to a detachable part 200, is 0.3 mm.


In the attachment-type auxiliary device 120 using a magnet, the thickness 15 of the first to fifth non-slip members 410, 510, 520, 530, 610, 620, 630, 640, 650, 660, 670, 680, 710, 720, 730, 740, 810, and 820 is longer than that of the coating part 400 of the attachment-type auxiliary device 100 using a magnet, so that the magnetic force between the magnet 220 and the magnetic substance is lower than the magnetic force of the attachment-type auxiliary device 100 using a magnet, with the result that the attachment-type auxiliary device 120 using a magnet is suitable for use by children or the elderly.


Referring to FIG. 8, an attachment-type auxiliary device 130 using a magnet according to the present embodiment is substantially the same as the attachment-type auxiliary device 100 using a magnet shown in FIGS. 1 to 5 except for a detachable part 240 and an accessory part 340. Accordingly, the same reference numerals and names will be used, and redundant descriptions will be omitted.


The attachment-type auxiliary device 130 using a magnet includes a detachable part 240, an accessory part 340 and a coating part 400, the detachable part 240 includes a detachable body 250, and the accessory part 340 includes a rotation member 350 and a rear cover 360.


The detachable part 240 is formed in the shape of a square container, and is detachably coupled to a magnetic substance, built into the rear side of a terminal 5 or case 7, through built-in magnets 220 and 230.


More specifically, the detachable body 250 is formed in the shape of a square container in which an insertion space 255 is open rearward, and magnets 220 and 230 are built into the inner portion of the detachable body 250 adjacent to the coating part 400 so that the detachable body 250 is magnetically coupled with the magnetic substance inside the terminal 5 or the case 7.


When the detachable body 250 is fabricated to be used for the terminal 5 corresponding to a tablet having a relatively large area rather than the terminal 5 corresponding to a smartphone, the shape of the detachable body 250 may be fabricated to have a relatively large area.


Alternatively, when the detachable body 250 is fabricated to be used for the terminal 5 corresponding to a foldable phone having a relatively small rear or front area while being folded, the shape of the detachable body 250 may be fabricated to have a relatively small area.


The magnet 220 is formed in a ring shape, is built into the detachable body 250 at a position corresponding to the upper portion of the detachable body 250, is coupled with the detachable body 250, and is fabricated to be magnetically coupled with the magnetic substance built into the terminal 5 or case 7.


The magnet 230 is built into the detachable body 250 at a position spaced apart from the lower portion of the magnet 220, and is formed in the shape of an elliptical plate extending long vertically. Depending on the shape or size of the detachable body 250, a magnet may be separated from the detachable body 250, or may be additionally built into the detachable body 250.


The coating part 400 is applied onto the front surface 251 of the detachable part 240 at a position symmetrical to the accessory part 340 with the detachable part 240 in between, and is made of a material having slip resistance.


The coating part 400 is made of silicone, polymer, or a natural material having slip resistance. Only some shapes selected from a concentric circular pattern extending around the magnet 220 and corresponding to the front area and shape of the detachable part 240 are formed and applied onto the front surface 251 of the detachable part 240.


The accessory part 340 is formed in the shape of a card wallet in which an accommodation space 355 is open upward, and is coupled to be rotated based on a part of the upper portion of the detachable part 240 and an axis extending to both sides. According to the rotation, the accessory part 340 is inserted into an insertion space 255 and coupled with the detachable part 240, or is moved to a position behind the detachable part 240.


When, in the state in which the accessory part 340 is separated from the insertion space 255 and rotated by a predetermined distance to a position behind the detachable part 240, the terminal 5 is tilted and the accessory part 340 is brought into close contact with a support surface, the terminal 5 is placed in a tilted state.


More specifically, the rotation member 350 is formed in the shape of a square pad, and a part of the upper portion of the rotation member 350 is rotatably coupled to a part of the upper portion of the detachable body 250 through a torque hinge or a hinge extending to both sides.


A reinforcing member having higher rigidity than the rotation member 350 and formed in the shape of a square pad may be disposed inside the rotation member 350 and coupled to the rotation member 350. Through this, the outer surface of the pivoting member 350 has the advantages of being smooth and having increased rigidity.


The rear cover 360 is formed in the shape of a square pad having a smaller size than the rotation member 350, and a part of the lower edge and both side edges of the rear cover 360 are coupled with a part of the lower edge and both side edges of the rotation member 350, respectively.


The accommodation space 355 connected to an external space located at the top is formed between the rear cover 360 and the rotation member 350, and a personal item 10 in the shape of a square plate, including a card, is inserted into the accommodation space 355.


A lower hole 365 is formed to connect the accommodation space 355 with a space behind the rear cover 360 by recessing a part of the rear surface and part of the lower edge of the rear cover 360, in the form of a semicircle convex upward and located at the center of the lower portion, forward by a predetermined distance.


When the card-shaped personal item 10 is inserted into the accommodation space 355, a part of the lower portion of the personal item 10 is exposed to the space behind the rear cover 360 through the lower hole 365. When the personal item 10 is pushed upward through the lower hole 365, a part of the upper portion of the personal item 10 protrudes to the upper portion of rotation member 350.


According to rotation, the rotation member 350 and the rear cover 360 are inserted into the insertion space 255, or are moved to a position behind the detachable body 250. When the rotation member 350 and the rear cover 360 are rotated and moved to a specific position and then come into close contact with a support surface, the rotation member 350 and the rear cover 360 support the detachable body 250 and the terminal 5 so that the terminal 5 maintains a tilted state.


For example, when the rotation member 350 and the rear cover 360 are rotated by a predetermined angle and located at a first position and the terminal 5 is placed to be tilted, the torque hinge allows the rotation member 350 and the rear cover 360 to maintain the first position through rotation resistance higher than the weight of the terminal 5, the detachable body 250, the rotation member 350, and the rear cover 360, and the terminal 5 is stably placed in a tilted state.


When, in the state in which the rotation member 350 and the rear cover 360 are rotated, separated from the insertion space 255 and moved to a position behind the detachable part 240, the upper part of the terminal 5 is moved rearward and downward by using the lower edge of the terminal 5 as an axis, the terminal 5 is tilted, and a part of the rotation member 350 supports the terminal 5 while coming into close contact with a support surface.


When, in the state in which the rotation member 350 and the rear cover 360 are rotated and moved to a position behind the detachable part 240, the terminal 5 is rotated such that one corner of the terminal 5 faces downward and then the other corner of the terminal 5 is moved rearward and downward by using one corner as an axis, the terminal 5 is tilted, and a part of the side surface of the rear cover 360 supports the terminal 5 while coming into close contact with a support surface.


When a situation in which the terminal 5 is carried occurs, when the rotation member 350 and the rear cover 360 are inserted into the insertion space 255, the volume of the attachment-type auxiliary device 130 using a magnet is reduced.


Therefore, when the terminal 5 is moved in the state of being carried, portability may be improved by inserting the rotation member 350 and the rear cover 360 into the insertion space 255. When the terminal 5 is used in a tilted state, convenience of use may be improved by separating the rotation member 350 and the rear cover 360 from the insertion space 255.


Referring to FIG. 9, in an attachment-type auxiliary device 900 using a magnet, seventh non-slip members 930 included in a coating part 409 extend obliquely in one direction, are applied around a through hole 905, and are used as a control group for the tests attached below.


The attachment-type auxiliary device 900 using a magnet has built-in magnets having the same shapes as magnets 220 and 230 at the same positions, is magnetically coupled to a terminal 5 or case 7 in the state of being in close contact with the terminal 5 or case 7, and is fabricated in the same shape as the attachment-type auxiliary device 100 using a magnet except for the seventh non-slip members 930.


Referring to Tables 1 to 3 attached below, the values of test reports corresponding to Tables 1 to 3 are results obtained by performing abrasion resistance tests on the coating parts 400, 404, 407, and 409, formed on the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet on the rear surface of the case 7, through an abrasion resistance test device 20 disclosed in FIG. 10, testing the amounts of change in the horizontal resistance of the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet, and then performing comparison on test results.


More specifically, the horizontal resistance to the coating parts 400, 404, 407, and 409 was preferentially measured through the horizontal resistance test device 30 of FIG. 11 before the abrasion tests of the coating parts 400, 404, 407, and 409, and then abrasion tests were performed on the coating portions 400, 404, 407, and 409 through the abrasion resistance test device 20.


The abrasion tests were performed on the coating parts 400, 404, 407, and 409 through the abrasion resistance test device 20 disclosed in FIG. 10, and then the horizontal resistance force generated between the abraded coating parts 400, 404, 407, and 409 and the case 7 was measured through the horizontal resistance test device 30.


Referring to FIG. 10, the driving part 21 of the abrasion resistance test device 20 is operated by a built-in motor and reciprocates a support part 22 forward or rearward, and the support part 22 is formed in the shape of a plate and reciprocates over any one of the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet.


Any one of the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet is fixed to the bottom plate 24 of the abrasion resistance test device 20 so that the accessory part 300 is disposed to face upward in the state of being attached to the rear surface of the case 7 that is worn on the terminal 5.


The upper portion of a fixation part 23 is detachably coupled to the support part 22, and the lower portion of the fixation part 23 extends downward and is coupled with the accessory part 300. Any one of the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet reciprocates back and forth on the rear surface of the case 7 except for the portion, where the camera module 6 is located, by operating the driving unit 21.


The weight applied to any one of the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet from the fixation part 23 is 500 gf. The support part 22 reciprocates at a speed of 40 round trips per minute, and stops after a total of 250 round trips.


Referring to FIG. 11, the horizontal resistance test device 30 is a DS2-500N (IMADA) product, and is composed of a body 31 and a measurement rod 32. An end of the measurement rod 32 is brought into close contact with the other side of the detachable body 210, and the case 7 that is worn on the terminal 5 is fixed to a support surface.


Among the attachment-type auxiliary devices 50, 100, 110, 120, and 900 using a magnet shown in FIG. 11, the attachment-type auxiliary device 50 using a magnet is in the state in which a coating part has been removed from the detachable part 200, and is used as a control group for comparison with the attachment-type auxiliary devices 100, 110, 120, and 900 using a magnet.


In the state in which the terminal 5 and the case 7 are fixed to a support surface, the body 31 is moved toward any one of the attachment-type auxiliary devices 50, 100, 110, 120, and 900 using a magnet, and the compressive force measured in the body 31 corresponding to the highest value obtained before any one of the attachment-type auxiliary devices 50, 100, 110, 120, and 900 using a magnet slides on the case 7 in one direction is measured by the body 31 as the horizontal resistance of the coating portion 400 in kgf measurement units.


The rates of change (%) listed in Tables 1 to 3 are calculated through the equation attached below. As the rate of change (%) decreases, the change in the horizontal resistance generated by the coating parts 400, 404, 407, and 409 and the magnets 220, and 230 due to abrasion becomes lower, and the durability of the coating parts 400, 404, 407, and 409 becomes higher.


The attachment-type auxiliary device 50 using a magnet disclosed in Table 4 is an attachment-type auxiliary device 50 using a magnet onto which the coating parts 400, 404, 407, and 409 are not applied, and is substantially the same as the attachment-type auxiliary device 100 using a magnet except that there are not the coating parts 400, 404, 407, and 409.







Rate


of


cha

nge



(
%
)


=


(


amount


of


change


horizontal


resistance


before


test


)

×
100














TABLE 1









Test Results



Attachment-type auxiliary device 100 using magnet











Horizontal
Horizontal



Test
resistance before
resistance after
Amount of


Number
abrasion test
abrasion test
change





1
1.24 kgf
1.17 kgf
0.07 kgf


2
1.02 kgf
1.20 kgf
−0.18 kgf 


3
1.30 kgf
1.08 kgf
0.22 kgf


Average
1.19 kgf
1.15 kgf
0.04 kgf








Rate of
3.09%


Change (%)


















TABLE 2









Test Results



Attachment-type auxiliary device 110 using magnet











Horizontal
Horizontal



Test
resistance before
resistance after
Amount of


Number
abrasion test
abrasion test
change





1
0.84 kgf
0.74 kgf
0.10 kgf


2
0.83 kgf
0.78 kgf
0.05 kgf


3
0.78 kgf
0.81 kgf
−0.03 kgf 


Average
0.82 kgf
0.78 kgf
0.04 kgf








Rate of
4.90%


Change (%)


















TABLE 3









Test Results



Attachment-type auxiliary device 120 using magnet











Horizontal
Horizontal



Test
resistance before
resistance after
Amount of


Number
abrasion test
abrasion test
change





1
1.21 kgf
1.19 kgf
0.02 kgf


2
0.92 kgf
1.19 kgf
−0.27 kgf 


3
1.24 kgf
1.16 kgf
0.08 kgf


Average
1.12 kgf
1.18 kgf
−0.06 kgf 








Rate of
−5.04%


Change (%)



















TABLE 4








Horizontal Test Results (kgf)




Horizontal resistance of attachment-type




auxiliary device 50 using magnet



Test Number
without coating parts 400, 404, 407, and 409









1
0.47 kgf



2
0.56 kgf



3
0.51 kgf



Average
0.51 kgf










Referring to Tables 1 to 4 attached above, the horizontal resistance change rate of the coating part 400 of the attachment-type auxiliary device 100 using a magnet was measured to be relatively low. Through this, it can be seen that the durability of the attachment-type auxiliary device 100 using a magnet is relatively higher than that of the attachment-type auxiliary devices 50, 110, and 120 using a magnet.


Furthermore, it can be seen that basically, the horizontal resistance of the attachment-type auxiliary device 100 using a magnet to the case 7 is relatively high in that the average horizontal resistance (1.19 kgf) of the coating part 400 formed on the attachment-type auxiliary device 100 using a magnet before the test is measured to be relatively higher than the average horizontal resistivity (1.12 kgf) of the coating part 400 formed on the attachment-type auxiliary device 120 using a magnet before the test.


Referring to FIG. 12, a vertical coupling test device 40 is a DS2-500N (IMADA) product, and is composed of a body 41, a measurement rod 42, and a connection part 43. An end of the measurement rod 42 is coupled to the accessory part 300 through the connection part 43, and the case 7 that is worn on the terminal 5 is fixed to a support surface.


In the state in which the terminal 5 and the case 7 are fixed to a support surface, the body 41 is moved upward, and the tensile force measured in the body 41 corresponding to the highest value obtained before any one of the attachment-type auxiliary devices 50, 100, 110, 120, and 900 using a magnet is separated from the case 7 and moved upward is measured by the body 41 as the vertical coupling force in kgf measurement units.











TABLE 5









Vertical Coupling Force Test Results (kgf)












Attachment-type
Attachment-type
Attachment-type
Attachment-type



auxiliary device
auxiliary device
auxiliary device
auxiliary device


Test Number
50 using magnet
100 using magnet
110 using magnet
120 using magnet





1
0.43 kgf
0.48 kgf
0.38 kgf
0.36 kgf


2
0.42 kgf
0.53 kgf
0.44 kgf
0.35 kgf


3
0.48 kgf
0.50 kgf
0.39 kgf
0.38 kgf


Average
0.44 kgf
0.50 kgf
0.40 kgf
0.36 kgf









Referring to Table 5 attached above, it can be seen that the average vertical coupling force (0.50 kgf) of the attachment-type auxiliary device 100 using a magnet is higher than the average vertical coupling force (0.44 kgf, 0.40 kgf, and 0.36 kgf) of the attachment-type auxiliary devices 50, 110, and 120 using a magnet.


The reason why the vertical coupling force of the attachment-type auxiliary device 100 using a magnet is higher than the vertical coupling force of the attachment-type auxiliary device 50 without the coating parts 400, 404, 407, and 409 is that the adhesive force of the coating part 400 and the magnetic force of the magnets 220 and 230 are higher than the magnetic force of the magnets built into the attachment-type auxiliary device 50 using a magnet.


Therefore, it can be seen that the attachment-type auxiliary device 100 using a magnet has higher horizontal resistance and vertical coupling force with respect to the case 7 than the attachment-type auxiliary devices 50, 110, and 120 using a magnet and the attachment-type auxiliary device 100 using a magnet also has a lower rate of change in the horizontal resistance even after abrasion and thus has higher durability.


Tables 6 and 7 attached below show test results for vertical coupling force, horizontal resistance, and horizontal resistance after an abrasion test for the attachment-type auxiliary device 900 using a magnet shown in FIG. 9.










TABLE 6








Test Results for Attachment-type


Test
Auxiliary device 900









Number
Vertical coupling force (kgf)
Horizontal resistance (kgf)





1
0.30 kgf
0.98 kgf


2
0.25 kgf
0.90 kgf


3
0.27 kgf
0.96 kgf


Average
0.27 kgf
0.95 kgf

















TABLE 7








Horizontal Resistance Test Results after Abrasion



Test for Attachment-type Auxiliary Device 900


Test
Horizontal resistance (kgf)










Number
Before test
After test
Amount of change





1
0.98 kgf
0.92 kgf



2
0.90 kgf
0.90 kgf



3
0.96 kgf
0.93 kgf



Average
0.95 kgf
0.92 kgf
0.03








Rate of
3.17%


Change (%)









Referring to Table 6 attached above, it can be seen that the average vertical coupling force of the attachment-type auxiliary device 900 is 0.27 kgf and is significantly lower than each of the average vertical coupling forces (0.44 kgf, 0.50 kgf, 0.40 kgf, and 0.36 kgf) of the attachment-type auxiliary devices 50, 100, 110, and 120 using a magnet disclosed in Table 5.


Furthermore, referring to Tables 1 to 4 and 6 attached above, it can be seen that the average horizontal resistance of the attachment-type auxiliary device 900 is 0.95 kgf, and is higher than the average horizontal resistance of the attachment-type auxiliary devices 50 and 110 using a magnet but is significantly lower than each of the average horizontal resistance values (1.19 kgf, and 1.12 kgf) of the attachment-type auxiliary devices 100 and 120 using a magnet.


Therefore, it can be seen that the attachment-type auxiliary device 900 on which the coating part 409 is formed has a lower vertical or horizontal resistance function for the case 7, to which the terminal 5 is coupled, than the attachment-type auxiliary devices 100, 110, and 120 using a magnet, and also it can be seen that the coupling force and slip resistance of the attachable auxiliary devices 100, 110, and 120 using a magnet for the case 7 to which the terminal 5 is coupled are relatively excellent.


As shown in FIG. 13, the coating parts 400, 404, and 407 formed on the attachment-type auxiliary devices 100, 110, and 120 using a magnet are applied through a coating device 70, and a pad 75 for detachable parts coated with the plurality of the coating parts 400, 404, and 407 is cut and then used as the detachable parts 200 coated with the coating parts 400, 404, and 407, respectively.


A printing body 71 for coating is formed in the shape of a square frame surrounding an inner pressing space, a press pad 72 is disposed in the pressing space, and the edge of the press pad 72 is coupled to the inner surface of the printing body 71 for coating.


The press pad 72 is made of a transparent or translucent material. A plurality of protrusions 74 corresponding to the coating parts 400, 404, and 407 are coupled to the front surface of the press pad 72 so that they protrude forward while being spaced apart from each other in a lattice form.


A viscous silicone film or resin is attached to the front surfaces of the press pad 72 and the protrusions 74. In this state, when the press pad 72 and the silicone film or resin are brought into close contact with the pad 75 for detachable parts and the pressure member 73 is reciprocated up and down while pressing the rear surface of the press pad 72 forward, the coating parts 400, 404, and 407 are primarily applied onto the pad 75 for detachable parts.


After the primary coating operation in which the coating part 400 is applied onto the pad 75 for detachable parts, the coating device 70 is separated from the pad 75 for detachable parts. When the secondary coating operation of repeatedly applying a silicon film on the coating part 400 is performed, the thickness of the coating part 400 increases in proportion to the number of repeated coating operations.


According to one embodiment disclosed herein, the attachment-type auxiliary device using a magnet has the advantage of improving slip resistance to a terminal or a case worn over the terminal through the coating part formed in a concentric circular shape surrounding the magnet.


In addition, the attachment-type auxiliary device using a magnet may selectively determine the shape of the coating part surrounding the magnet according to the shape or area of the detachable part, thereby providing the advantage of reducing the difficulty in designing the coating part and the advantage of facilitating the adjustment of the shape of the coating part to fit devices having various shapes or areas.


In addition, the attachment-type auxiliary device using a magnet has the advantage of significantly improving slip resistance against external forces, applied at various locations, by means of the coating part in the state of being attached to a terminal or a case.


In addition, the shapes of the non-slip members formed in the coating part are fabricated in elliptical shapes extending long vertically to be optimized for the rear surface of a terminal extending long vertically, so that there is an advantage in that slip resistance in one or the other direction, which is relatively vulnerable to slippage, is improved.


Furthermore, the effects of the present disclosure are naturally exhibited by the configuration of the described technology regardless of whether the inventor recognizes them, so that the above-described effects are only a few effects according to the described technology and it should not be recognized that all the effects that are known to the inventor or are present have been described herein.


Moreover, the effects of the present invention may be additionally determined from the overall description of the present specification. Even when an effect is not described in an explicit sentence but can be recognized from the present specification by those having ordinary skill in the art to which the present disclosure pertains, the effect should be regarded as the effect described in the present specification.


Although the embodiments of the present invention have been described with reference to the accompanying drawings, the embodiments described in the present specification and the configurations shown in the accompanying drawings are only examples of the present invention and do not represent the overall technical spirit of the present invention. Accordingly, it should be appreciated that there may be various equivalents and modifications that can replace them at the time at which this application is filed. Therefore, it should be understood that the embodiments described above are illustrative but not limitative in all respects. The scope of the present invention is defined based on the following claims rather than the detailed description. All changes or modifications derived from the meanings and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

Claims
  • 1. An attachment-type auxiliary device using a magnet, the attachment-type auxiliary device being used in conjunction with a product having a built-in magnetic substance, the attachment-type auxiliary device comprising: a detachable part including a detachable body, and a magnet configured to be magnetically coupled with the magnetic substance;an accessory part coupled to a rear side of the detachable body, and configured to form an accommodation space and to support the product so that the product is placed in a tilted state; anda coating part made of a material having slip resistance, and formed on a front surface of the detachable body.
  • 2. The attachment-type auxiliary device of claim 1, wherein the accessory part includes a pocket that is coupled with the detachable body with the accommodation space disposed therebetween so that it is formed to cover the accommodation space.
  • 3. The attachment-type auxiliary device of claim 1, wherein the coating part is formed such that only some shapes selected from a concentric circular pattern extending around a part of a front surface of the detachable body and corresponding to a shape or area of the front surface of the detachable body are applied thereto.
  • 4. The attachment-type auxiliary device of claim 3, wherein the coating part includes: a first non-slip member formed in a ring shape; anda second non-slip member formed in a shape surrounding both sides and lower portion of the first non-slip member.
  • 5. The attachment-type auxiliary device of claim 4, wherein the coating part further includes a plurality of additional second non-slip members that are formed to be spaced apart from each other by a same distance as circumferential lengths thereof are sequentially increased.
  • 6. The attachment-type auxiliary device of claim 4, wherein the coating part further includes a plurality of third non-slip members that are formed in a shape of circular arcs extending long to both sides and are disposed to be spaced apart on different horizontal lines under the second non-slip member.
  • 7. The attachment-type auxiliary device of claim 6, wherein the coating part further includes a plurality of fourth non-slip members that are formed to extend obliquely from corresponding positions between lower corners of the detachable body and the third non-slip members.
  • 8. The attachment-type auxiliary device of claim 7, wherein the coating part further includes fifth non-slip members that are formed to extend obliquely from corresponding positions between upper corners of the detachable body and the second non-slip member.
  • 9. The attachment-type auxiliary device of claim 8, wherein: the accommodation space is formed to be opened upward; anda part of a lower portion of the accessory part is depressed to form a lower hole that connects the accommodation space and an external space.
  • 10. The attachment-type auxiliary device of claim 9, wherein a part of a center of an upper portion of the detachable body is depressed to form a through hole that connects the accommodation space and the external space.
  • 11. The attachment-type auxiliary device of claim 10, wherein the magnet is formed in a ring shape surrounding the through hole.
Priority Claims (1)
Number Date Country Kind
10-2023-0064434 May 2023 KR national
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part application of the U.S. Design application Ser. No. 29/890,450 filed on Apr. 24, 2023 and the U.S. Design application Ser. No. 29/892,042 filed on May 12, 2023, the disclosure of which is incorporated herein by reference.

Continuation in Parts (2)
Number Date Country
Parent 29890450 Apr 2023 US
Child 18347669 US
Parent 29892042 May 2023 US
Child 18347669 US