MULTI-PURPOSE CASING HAVING HEAVY-ARTICLE SUPPORT TRAY INTEGRALLY FORMED THEREWITH

Abstract

A multi-purpose casing having a heavy-article support tray integrally formed therewith is moveable horizontally in a state of accommodating a plurality of bowling balls and is capable of reliably supporting heavy articles by integrally forming a plurality of space support trays for supporting heavy articles with a body defining the external appearance of the casing.

Description

BACKGROUND

The present invention relates to a multi-purpose casing having a heavy-article support tray integrally formed therewith, which is moveable horizontally in a state of accommodating a plurality of bowling balls and is capable of reliably supporting heavy articles by integrally forming a plurality of space support trays for supporting heavy articles with a body defining the external appearance of the casing.

In general, a case-type bag refers to a bag that is formed by attaching an outer cover to a frame forming a standardized framework and is mainly used for travel. Recently, as medium- and long-term travel has increased, demand for bags has increased rapidly, and the shapes and materials of bags have been increasingly modernized and diversified.

In addition, such a bag is formed in a substantially hexahedral box shape by attaching or connecting an outer cover made of cloth, leather, synthetic leather, or synthetic resin to an outer surface of a frame made of metal such as aluminum or synthetic resin such as polyethylene (PE), and is provided on one surface thereof with an entrance that is openable and closable by means of a zipper.

A bag configured as described above is applied to a case for transporting travel goods or sporting goods, and is used as a carrier for accommodating and carrying goods related to sports such as golf or bowling.

In relation to this technology, Korean Patent No. 755393 discloses a conventional travel bag, which is configured, as shown in FIG. 1, such that an entrance that is openable and closable by means of a third zipper (190) is provided on a front surface of the travel bag in order to expose an article storage space to the outside and a handle (192) is provided on a top surface that is located at the highest position among four side surfaces (116, 118, 120, and 122) of the travel bag.

In addition, a cart-type handle (194) may be provided on a rear surface (114) of the travel bag so as to be expandable and contractible in a vertical direction substantially perpendicular to the first side surface (116), which is the top surface among the side surfaces (116, 118, 120, and 122), and at least two casters (200) may be mounted on the third side surface (120), which is located at the lowest position among the four side surfaces (116, 118, 120, and 122) so as to be oriented toward the ground.

Further, the caster (200) is configured such that a wheel (202) is capable of rotating about a rotary shaft (204) and the rotary shaft (204) is also capable of rotating in a state of extending parallel to the ground, and three edges of the second side surface (118) and three edges of the fourth side surface (122), which are oriented in a lateral direction, are connected to edges of one of the front surface (112) and the rear surface (114) and to edges of the first and third side surfaces (116 and 120) adjacent thereto by means of first and second zippers (172 and 182).

However, the above-described bag, which is configured such that the casters are mounted on the third side surface (120) and the first and second zippers (172 and 182) are provided along the edges of the first and third side surfaces (116 and 120), has a shortcoming in that it is difficult to support heavy articles and thus it is impossible to simultaneously transport heavy articles such as clothes or sporting goods.

In addition, there is a shortcoming in that, when heavy articles such as sporting goods are supported and transported, the sporting goods move inside the bag and are damaged due to falling and that, when articles are stacked in the bag, articles located at lower positions are wrinkled.

In addition, there is a shortcoming in that, because the side surfaces are respectively manufactured and then are connected to each other using the zippers, a manufacturing process is complicated.

SUMMARY OF THE INVENTION

An object of the present invention to solve the above problems is to provide a multi-purpose casing having a heavy-article support tray integrally formed therewith, which facilitates manufacture thereof and reduces a manufacturing cost by minimizing the number of assembly processes, which is movable in a horizontal state and an inclined state and thus minimizes load according to transportation, which enables storage and withdrawal of articles in a stopped state and thus facilitates use thereof, which enables storage of stacked articles without damage thereto by preventing the stacked articles from being pressed, which enables stored articles to be kept neat and tidy and thus to be easily checked, and which reinforces the structure thereof by moving a handle to the interior of a body and facilitates utilization of space when articles are loaded therein.

In order to accomplish the above object, the present invention provides a multi-purpose casing having a heavy-article support tray integrally formed therewith, which includes a storage space partitioned in a vertical direction by at least one space support tray provided therein and a plurality of casters provided at a lower portion thereof so as to enable movement in a horizontal direction or an inclined direction,

• • wherein the casing includes a body made of plastic and formed in a hexahedral shape having a predetermined thickness and including two side surfaces connected to upper and lower surfaces thereof and open front and rear surfaces, and the at least one space support tray provided on an inner side surface of the body in a height direction and a caster support portion to which each of the casters is mounted are integrally formed with the body when the body is formed,
  • wherein the space support tray is configured such that
  • a) a first support surface extends to inner sides of the two side surfaces of the body in the storage space, and a cavity portion is integrally formed therein so as to be connected to outer sides of the two side surfaces of the body,
  • b) the cavity portion is formed so as not to abut edges of the two side surfaces in a width direction on the outer sides of the two side surfaces, and
  • c) a first round portion having a movement prevention member is formed in at least one side of the first support surface,
  • wherein the caster support portion
  • a) is integrally formed with the body so as to be connected to an inner side or an outer side of the body when the body is formed, and
  • b) includes a fixing section through which a bolt hole having a section having a predetermined depth and a predetermined thickness is formed, and
  • wherein the body is mounted so as to be movable horizontally and to enable storage and withdrawal of articles without falling of the articles by opening a door in a stopped state.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, the space support tray having the cavity portion is integrally formed with the body when the body is formed using a combination of an X-axis mold and a Y-axis mold entering in a direction intersecting the X-axis mold, and

• • when the body is formed, the caster support portion is integrally formed by a combination of the X-axis mold and a Z-axis mold or the Y-axis mold.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a support base is integrally formed with the upper surface or the lower surface of the body, and

• • the support base includes a second support surface integrally extending from the body so as to protrude toward the storage space, and a second round portion corresponding to a bowling ball is formed in the second support surface.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a handle support portion is integrally formed with one of the two side surfaces of the body or at least one surface among the upper and lower surfaces of the body when the body is formed, and

• • when the body is formed, the handle support portion is integrally formed by a combination of the Y-axis mold having a bracket forming hole and the X-axis mold entering in a direction intersecting the Y-axis mold and having a protruding portion corresponding to the bracket forming hole or
  • a combination of the Y-axis mold having the bracket forming hole, the X-axis mold entering in a direction intersecting the Y-axis mold and having the protruding portion corresponding to the bracket forming hole, and the Z-axis mold having a Z-axis protrusion penetrating the body.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a caster having a brake is fixed to the caster support portion,

• • the caster includes a fixing boss supported by a frame via a coupling member and a drive wheel mounted to the fixing boss so as to be freely rotatable,
  • a positioning projection is provided on one side of the fixing boss and is supported in a positioning hole formed in one side of the bolt hole, and the caster further includes a guide ring made of metal and supported on an outer diameter portion of the fixing boss to prevent friction between the fixing boss and the bolt hole.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a third support surface having a third round portion to support one side of a bowling ball is formed on each of the two side surfaces of the body so as to protrude to the interior of the storage space, and

• • the third support surface is integrally formed with the body by a combination of the X-axis mold and the Y-axis mold when the body is formed, or
  • is manufactured as a piece separately from the body and is assembled to at least one of the two side surfaces of the body.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, the movement prevention member is integrally formed with the space support tray, the support base, or the third support surface,

• • the movement prevention member is implemented as at least one selected from among a tension portion, which includes a cut portion formed in one side of the support surface so as to be elastically supported and a protrusion formed on an upper portion thereof, and a support belt, which is formed so as to be fastened and released in order to prevent a bowling ball from being separated forward from a ball support.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a handle mounted to the handle support portion has a telescopic structure, and is supported in a receiving hole formed in each of at least two portions of the body or is tightly coupled in the receiving hole via a fixing cap when the handle is connected through an upper side and a lower side of the body, and

• • the receiving hole formed in the upper and lower portions of the body is formed to be reduced in diameter toward one side thereof in order to press the fixing cap inserted thereinto, and a piece coupling portion is integrally formed with one side of the fixing cap so that, when the piece coupling portion is coupled as a piece in one side of the receiving hole, the handle is pressed by a plurality of contact pieces formed at a lower side of the fixing cap.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, the body is provided with a door to open and close an open portion, and

• • the door has a pocket provided in an outer side or an inner side thereof, is made of fabric or plastic, and is connected so as to be opened and closed by means of a zipper, a hinge, a snap button, or the like.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, the body is further provided with an auxiliary bag placed and supported on an upper side of the body while allowing the handle to pass therethrough,

• • a holder made of fabric or plastic and having a mounting hole formed therein to allow the handle to be inserted therethrough in the vertical direction is integrally formed with the auxiliary bag, or is sewn to the auxiliary bag,
  • the auxiliary bag includes an auxiliary door formed to be opened and closed on the upper side or each of both sides thereof and a stopper provided therein to support one or more bowling balls, and
  • the auxiliary bag includes a fixing projection protruding from the lower portion thereof so as to be supported by a coupling boss formed on the upper portion of the frame.

In addition, in the multi-purpose casing having a heavy-article support tray integrally formed therewith of the present invention, a thread is formed on the fixing boss, and the coupling member supporting the caster is implemented as a nut and is assembled to the support hole.

As described above, the present invention has effects of facilitating manufacture thereof and reducing a manufacturing cost by minimizing the number of assembly processes, having capability of moving in a horizontal state and an inclined state and thus minimizing load according to transportation, enabling storage and withdrawal of articles in a stopped state and thus facilitating use thereof, enabling storage of stacked articles without damage thereto by preventing the stacked articles from being pressed, enabling stored articles to be kept neat and tidy and thus to be easily checked, and reinforcing the structure thereof by moving a handle to the interior of a body and facilitating utilization of space when articles are loaded therein.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view showing a conventional bowling bag.

FIGS. 2 and 3 are, respectively, a perspective view showing a casing according to the present invention and a view showing a door open state.

FIGS. 4 and 5 are, respectively, an assembly state view and a side view of a bowling bag using the casing according to the present invention.

FIG. 6 is a view showing a separated state of molds for manufacture of the casing according to the present invention.

FIG. 7 is a view showing a state in which two bowling balls are loaded in the casing according to the present invention and one bowling ball is loaded in an auxiliary bag provided on the casing.

FIG. 8 is a view showing a state in which a bowling ball is loaded in the casing according to the present invention and bowling shoes are loaded above the bowling ball.

FIG. 9 is a view showing a state in which two bowling balls are loaded in a lower portion of the casing according to the present invention and one bowling ball is further loaded in an auxiliary bag to which a cover made of fabric is sewn.

FIG. 10 is a view showing a state in which four bowling balls are loaded in a lower portion of the casing according to the present invention and two bowling balls are further loaded thereabove in an auxiliary bag to which a cover made of fabric is sewn.

FIGS. 11 and 12 are, respectively, a perspective view showing a casing according to the present invention in which two bowling balls are further loaded in an auxiliary bag made of plastic and formed as an integral-type frame at a position above two bowling balls and a perspective view showing a casing according to the present invention in which four bowling balls are loaded.

FIG. 13 is a perspective view showing a casing according to the present invention in which four bowling balls are loaded in a lower portion and two bowling balls are further loaded thereabove in an auxiliary bag made of plastic and formed as an integral-type frame.

FIG. 14 is a view showing a state in which two bowling balls and bowling shoes are loaded in a casing according to the present invention through a side surface of the casing.

FIG. 15 is a view showing a state in which clothes are loaded in a casing according to another embodiment of the present invention when the casing is used as a travel bag.

FIG. 16 is a view showing a state in which casters are mounted to a casing according to the present invention that has a rectangular shape having an expanded lower portion and to a casing according to the present invention that has a rectangular shape.

FIG. 17 is a view showing a separated state of molds for manufacturing a casing according to the present invention in which four bowling balls are loaded.

DETAILED DESCRIPTION OF THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 17, a casing (100) of the present invention is provided with a storage space (120) at least partially partitioned in a vertical direction by one or more space support trays provided therein and a plurality of casters (170) integrally provided with a lower portion thereof so as to enable movement in a horizontal direction or an inclined direction.

In addition, the casing (100) includes a body (110), which is made of plastic and is formed in a hexahedral shape having a predetermined thickness and including both side surfaces (112) (114) and openable front and rear surfaces (not shown) connected to upper and lower surfaces (111) (113), and the one or more space support trays (200) provided on an inner side surface of the body in a height direction and caster support portions (300), to which the casters (170) are mounted, are integrally formed with the body when the body is formed.

In this case, the space support tray (200) includes a first support surface (210) extending to inner sides of both side surfaces of the body in the storage space (120) and a cavity portion (220) integrally formed therein so as to be connected to outer sides of both side surfaces of the body.

In addition, lattice-shaped ribs (119) are integrally formed with the upper and lower surfaces of the body (110) in order to increase strength.

In addition, the cavity portion (220) is formed in spaces in both side surfaces of the body so as not to abut edges of both side surfaces in a width direction on the outer sides of both side surfaces.

In this case, as shown in FIG. 4, a bracket member (145) is further connected to one side surface of the space support tray (200) so that one side of the space support tray extends so as to closely contact a door (500).

In addition, the first support surface (210) includes a first round portion (211) formed in at least one side thereof.

In addition, when the body is formed, the caster support portions (300) are integrally formed with the body so as to be in contact with inner sides or outer sides of corner portions of a lower portion of the body (110).

In this case, a fixing section (310) of the caster support portion (300), through which a bolt hole (311) having a section having a predetermined depth and a predetermined thickness is formed, is integrally formed with the body when the body (110) is formed.

Further, the casters are mounted to the casing (100) including the body (110) so that the casing is movable in the horizontal direction in an upright state and enables storage and withdrawal of articles without falling of the articles by opening a door in a stopped state.

In addition, as shown in FIG. 6, the space support tray (200) having the cavity portion is integrally formed with the body when the body (110) is formed using a combination of an X-axis mold (410) and a Y-axis mold (430) entering in a direction intersecting the X-axis mold.

In addition, when the body is formed, the caster support portions (300) are integrally formed by a combination of the X-axis mold (410) and a Z-axis mold (not shown) or the Y-axis mold.

In addition, a support base (600) is integrally formed with the upper surface or the lower surface of the body (110).

In this case, the support base (600) includes a second support surface (610) integrally extending from the body (110) so as to protrude toward the storage space (120), and a second round portion (611), which corresponds to a bowling ball (B), is integrally formed with the second support surface (610).

In addition, the support base (600) and the space support tray (200) are mounted so as to perform the same function of supporting bowling balls.

In addition, when the body is formed, a handle support portion (800) is integrally formed with one or more surfaces among both side surfaces, the upper surface, and the lower surface of the body (110).

As shown in FIG. 6, when the body (110) is formed, the handle support portion (800) is integrally formed by a combination of the Y-axis mold (430) having a bracket forming hole (431) and the X-axis mold (410) entering in a direction intersecting the Y-axis mold and having a protruding portion (411) corresponding to the bracket forming hole or

• • a combination of the Y-axis mold (430) having the bracket forming hole (431), the X-axis mold (410) entering in a direction intersecting the Y-axis mold and having the protruding portion (411) corresponding to the bracket forming hole, and the Z-axis mold (not shown) having a Z-axis protrusion (not shown) penetrating the body.

In addition, the caster (170) having a brake (175) is fixed to the caster support portion (300).

In this case, as shown in FIG. 2, the caster (170) includes a fixing boss (173) supported by the frame via a coupling member (160) and a drive wheel (175) mounted to the fixing boss so as to be freely rotatable.

In addition, a positioning projection (174) is provided on one side of the fixing boss and is supported in a positioning hole (178) formed in one side of the bolt hole (311), and there is further provided a guide ring (176), which is made of metal and is supported on an outer diameter portion of the fixing boss and is inserted into the bolt hole in order to prevent friction between the fixing boss and the bolt hole.

In addition, as shown in FIGS. 11 and 12, a third support surface (190) having a third round portion (191) for supporting one side of the bowling ball (B) is formed on each of both side surfaces of the body (110) so as to protrude inward.

In this case, the third support surface (190) is integrally formed with the body by the X-axis mold (410) and the Y-axis mold when the body is formed, or

• • is manufactured as a piece separately from the body and then is assembled to each of both side surfaces of the body, as shown in FIGS. 11 and 12.

In addition, one or more movement prevention members (900), each of which is composed of a pair of elements, are integrally formed with the space support tray, the support base, or the third support surface in order to support one or more bowling balls.

In this case, as shown in FIG. 4, the movement prevention member (900) is implemented as at least one selected from among a pair of tension portions (910), each of which includes a cut portion (911) so as to be elastically supported and a protrusion (913) formed on an upper portion thereof, so that a pair of protrusions prevents movement of the bowling ball, and

• • a support belt (930) mounted on one side of a ball support on which the bowling ball is loaded in order to prevent separation of the bowling ball and formed so as to be fastened and released.

As described above, the present invention is configured to prevent movement of a bowling ball loaded therein in the horizontal and vertical directions using the round portions formed in the first, second, and third support surfaces and the protrusion forming the movement prevention member.

In addition, as shown in FIG. 4, the present invention further includes the handle support portion (800) formed on one side of the body.

In addition, as shown in FIG. 7, a handle (850) mounted to the handle support portion (800) has a telescopic structure, and is tightly coupled to a receiving hole (810) formed through the upper surface and the lower surface of the body (110) via a fixing cap (840).

In this case, the receiving hole (810) is formed to be reduced in diameter toward one side thereof in order to press one side of the fixing cap inserted thereinto, and a piece coupling portion (830) is integrally formed with one side of the fixing cap so as to be coupled as a piece to one side of the receiving hole.

In addition, as shown in FIG. 3, the body (110) of the present invention is provided with a door (500), which is configured to open and close an open portion (140) formed in each of the front side and the rear side of the body.

In this case, as shown in FIG. 15, the door (500) has a pocket (510) provided in the outer side or the inner side thereof, is made of fabric or plastic, and is connected so as to be opened and closed by means of a zipper, a hinge, a snap button, or the like.

In addition, as shown in FIG. 9, the present invention further includes an auxiliary bag (700), which is placed and supported on the upper side of the body while allowing the handle to pass therethrough.

In this case, the auxiliary bag (700) is made of fabric or plastic, and a holder (710), which is made of plastic and has a mounting hole (711) formed therein to allow the handle to be inserted therethrough in the vertical direction, is integrally formed with the auxiliary bag, or the holder is sewn to the auxiliary bag made of fabric.

In addition, the auxiliary bag (700) includes an auxiliary door (not shown) formed to be opened and closed on the upper side or each of both sides thereof and a stopper (770) provided therein to support one or more bowling balls (B).

In this case, as shown in FIG. 10, the auxiliary bag (700) includes a fixing projection (731) protruding from the lower portion thereof so as to be supported by a coupling boss (735) formed on the upper portion of the frame.

In addition, as shown in FIG. 2, a thread is formed on the fixing boss, and the coupling member (160) supporting the caster of the present invention is implemented as a nut and is assembled to the support hole.

However, a configuration in which an elastic hook is formed on the upper end of the fixing boss and is assembled to the support hole, a configuration in which a pin hole is formed through the fixing boss and a fixing pin is inserted into the pin hole to be assembled to the support hole, and a configuration in which a ring hole is formed in the fixing boss and a fixing ring is fitted into the ring hole to be assembled to the support hole may be selectively used.

Operation of the present invention configured as described above will be described.

As shown in FIGS. 2 to 17, in the casing (100) of the present invention, the body (110), the one or more space support trays (200) disposed in a space to support a heavy article, the support base (600) provided on one side thereof with the caster support portions (330) to which the casters (170) are assembled, and the handle support portion (800) to which the handle (850) is assembled are integrally formed with each other using a combination of molds moving in the X-axis, Y-axis, and Z-axis directions.

In this case, since the handle support portion (800) is formed so as to abut the inner side surface of the body (110) or the outer side surface of the body, the handle (850) assembled to the handle support portion (800) facilitates transportation of the casing while reliably supporting load applied to the body (110).

In addition, as shown in FIGS. 2 and 15, a separate knob (not shown) is mounted to the case (100) when the body is formed or when the casing is completely manufactured so as to protrude outward or to be located in the body, and a user may transport the casing using the knob.

Deleted

In addition, the space support tray (200) interconnects the inner side surfaces of the body (110) formed in a rectangular shape, and includes the cavity portion (220) integrally formed therein. Therefore, the space support tray may reliably support a heavy article such as a bowling ball (B) loaded thereon without being deformed, and may be manufactured through one injection-molding process.

In addition, the caster support portion (330) formed on one side of the body so that the caster (170) of the present invention is assembled thereto is integrally formed so as to protrude outward from the lower portion of the body (110), as shown in FIG. 2, or is provided at a corner of the inner side surface of the support base (600) located at the lower portion of the body, as shown in FIG. 3, thereby reliably supporting load applied to the body (110) on the ground.

In this case, due to the handle (850) connected to the body (110) and the caster (170) provided on the lower surface of the body (110), the casing (100) is movable in a horizontal direction or an inclined direction in a state of simultaneously storing clothes (C), shoes (S), bowling balls (B), and the like in the storage spaces (120) in the body (110).

In addition, as shown in FIG. 15, according to the present invention, the storage spaces (220) are separated from each other by the space support trays (200), and clothes (C) are stacked on each of the space support trays (200). In this state, it is easy to check the loaded clothes and take the clothes out by opening the door (500), and the clothes are prevented from being pressed and thus wrinkled.

In addition, when the hexahedral body (110), which is made of plastic, has a predetermined thickness, and includes the upper and lower surfaces (111) (113), both side surfaces (112) (114) connected thereto, and open front and rear surfaces (not shown), is formed, the one or more space support trays (200) disposed in the storage space (120) in the height direction and the caster support portion (300) to which the caster (170) is mounted are integrally formed with the body using the X-axis mold (410), the Y-axis mold (430), and the Z-axis mold, which are combined with each other as shown in FIG. 6. Therefore, the casing (100) is easily manufactured through one process.

In this case, the space support tray (200) includes the first support surface (210) extending to inner sides of both side surfaces of the body and the cavity portion (220) integrally formed therein so as to be connected to outer sides of both side surfaces of the body, and thus is connected to the body while having predetermined strength in the storage space (120).

In addition, as shown in FIG. 2, when the body (110) is formed, the cavity portion (220) forming the space support tray (200) and one side of the third support surface (190) are exposed on each of both side surfaces of the body (110).

In addition, as shown in FIG. 2, general rib-shaped support pieces (not shown) are integrally formed with the cavity portion (220) in the horizontal or vertical direction so as to interconnect the first support surfaces (210), thereby easily dispersing load applied to the upper surface to the lower surface, and the cavity portion (220) is formed so as not to abut edges of both side surfaces in the width direction on the outer sides of both side surfaces, thereby reinforcing the connection.

In addition, as shown in FIG. 4, the bracket member (145) is connected to the front side of the space support tray so as to form the same plane as an edge of one side of the body when the casing (100) is completely manufactured, thereby facilitating coupling of the door.

In addition, the lattice-shaped ribs (119) are integrally formed on the upper and lower surfaces of the body (110), thereby increasing the strength of the body (110).

In addition, the first support surface (210) formed at the space support tray (200) includes the first round portion (211) formed on at least one side thereof so as to contact one side of a bowling ball located thereon or one side of a bowling ball located thereunder, thereby preventing movement of the bowling ball.

In addition, as shown in FIG. 2, the fixing section (310) of the caster support portion (300), through which the bolt hole (311) having a section having a predetermined depth and a predetermined thickness is formed, is integrally formed with the body at a position abutting the inner side or the outer side of the body (110). Therefore, when the caster supports load applied to the casing (100), the fixing boss (173) of the caster is always oriented in the vertical direction.

Further, the casing (100) including the body (110) described above is movable horizontally in an upright state due to the caster connected thereto, and supports a bowling ball in a stopped state so that the bowling ball is not moved from the loading position thereof by the round portion and the movement prevention member when the door is opened, thereby enabling storage and withdrawal of articles without falling of the articles.

In addition, since the caster (170) having the brake (175) is fixed to the caster support portion (300), it is possible to take a heavy article such as a bowling ball (B) out after stopping the casing at a certain position, thereby preventing accidents.

In this case, as shown in FIG. 2, the caster (170) is mounted such that the positioning projection (174) provided on one side of the fixing boss is supported in the positioning hole (178) formed in one side of the bolt hole (311) and thus the fixing boss is prevented from rotating when the drive wheel (175) rotates freely and such that the outer diameter portion of the fixing boss is supported in the bolt hole (311) via the metallic guide ring (176), whereby, when the fixing boss is coupled to the coupling member (160), damage to the coupling member (160) due to friction with the bolt hole is prevented, and thus the durability thereof is improved.

In addition, according to the present invention, a thread is formed on the fixing boss, and the coupling member (160) supporting the caster is implemented as a nut and is assembled to the support hole.

However, a configuration in which an elastic hook is formed on the upper end of the fixing boss and is assembled to the support hole, a configuration in which a pin hole is formed through the fixing boss and a fixing pin is inserted into the pin hole to be assembled to the support hole, and a configuration in which a ring hole is formed in the fixing boss and a fixing ring is fitted into the ring hole to be assembled to the support hole may be applied in various manners.

In addition, as shown in FIG. 6, the space support tray (200) having the cavity portion is integrally formed when the body (110) is formed by a combination of the X-axis mold (410) and the Y-axis mold (430) entering in a direction intersecting the X-axis mold, and the hexahedral body (110), which is made of plastic, has a predetermined thickness, and includes both side surfaces (112) (114) connected to the upper and lower surfaces (111) (113) and open front and rear surfaces, is integrally formed by simultaneously operating the Z-axis mold as well as the X-axis mold (410) and the Y-axis mold (430).

In this case, when the body (110) is formed, the support base (600), the handle support portion (800), and the caster support portion (300) are also integrally formed at the same time.

In addition, in the support base (600), the second round portion (611) is integrally formed with the second support surface (610) integrally extending from the body (110) and protruding toward the storage space (120), thereby preventing movement of a heavy article such as a bowling ball (B) loaded thereon.

In addition, as shown in FIG. 6, the handle support portion (800) is integrally formed with the body when the body (110) is formed by a combination of the Y-axis mold (430) having the bracket forming hole (431) and the X-axis mold (410) entering in a direction intersecting the Y-axis mold and having the protruding portion (411) corresponding to the bracket forming hole or a combination of the Y-axis mold (430) having the bracket forming hole (431), the X-axis mold (410) entering in a direction intersecting the Y-axis mold and having the protruding portion (411) corresponding to the bracket forming hole, and the Z-axis mold having the Z-axis protrusion (not shown) penetrating the body, thereby causing the handle to be fitted into and fixed to one side of the body without being separated therefrom.

In addition, as shown in FIGS. 11 and 12, the third support surface (190) having the third round portion (191) for supporting one side of the bowling ball is formed on each of both side surfaces of the body (110) so as to protrude inward, thereby supporting a side surface of the bowling ball, which is a heavy article.

In this case, the third support surface (190) is integrally formed with the body by the X-axis mold (410) and the Y-axis mold when the body is formed, or is manufactured as a piece separately from the body and then is assembled to the body, thereby supporting the bowling ball so that the bowling ball does not move.

In addition, the movement prevention member (900) is integrally formed with at least one selected from among the space support tray, the support base, and the third support surface in order to prevent movement of the bowling ball that is in contact therewith.

That is, the present invention is configured to prevent movement of an article in the horizontal and vertical directions using the round portions formed in the support surfaces and the movement prevention member described above.

In this case, as shown in FIG. 4, the movement prevention member (900) is implemented as the tension portion (910), which includes the cut portion (911) formed in one side of the support surface so as to be elastically supported and the protrusion (913) formed on an upper portion thereof, whereby the bowling ball is easily loaded over the protrusion, and two adjacent protrusions support the bowling ball so that the bowling ball does not move.

In addition, as an example of the movement prevention member, the support belt (930), which is formed so as to be fastened and released, is mounted in order to prevent the bowling ball from being separated forward from the ball support. When the support belt is used together with the tension portion (910), the movement prevention effect is enhanced.

In addition, as shown in FIG. 4, the handle (850) mounted to the handle support portion (800) of the present invention has a telescopic structure so as to be adjusted in length when used. When the handle is inserted into and supported in the receiving hole (810) formed through the upper surface and the lower surface of the body (110) or at a predetermined position in the vertical direction, the handle is tightly coupled in the receiving hole via the fixing cap (840) provided on the upper and lower surfaces of the body so as to correspond to the receiving hole formed through the upper and lower surfaces of the body (110) into which the handle is inserted.

In this case, as shown in FIG. 7, the receiving hole (810) is formed to be reduced in diameter toward one side thereof in order to press the fixing cap inserted thereinto, and the fixing cap includes a plurality of contact pieces formed at the lower end thereof, lower portions of which are brought into tight contact with the handle when pressed. When the fixing cap is coupled in one side of the receiving hole using the piece coupling portion (830) formed on one side of the fixing cap, the handle is caused to be tightly coupled in the receiving hole.

In addition, the fixing cap is formed such that the upper side thereof has a hollow shape and the lower side thereof has a cap shape, whereby the handle is firmly fixed to the body in a state in which downward movement thereof is prevented.

In addition, as shown in FIG. 15, the body (110) of the present invention is provided with the door (500) to open and close the open portion (140), so that shoes (S), clothes (C), bowling balls (B), and the like are easily stored in the storage space (120) in the body and are prevented from falling.

In this case, the door (500) has the pocket (510) provided in the outer side or the inner side thereof to easily store other articles, is made of fabric or plastic, and is connected by means of a zipper, a hinge, a snap button, or the like so as to be easily opened and closed as needed.

Further, as shown in FIG. 10, the present invention further includes the auxiliary bag (700) placed on the upper side of the body while allowing the handle to pass therethrough to be supported by the handle, thereby storing and transporting separate articles that may not be stored in one casing.

In this case, the auxiliary bag (700) is made of fabric or plastic, and the holder (710), which has the mounting hole (711) formed therein to allow the handle to be inserted therethrough in the vertical direction, is integrally formed with the auxiliary bag, or is separately manufactured and then is sewn to the auxiliary bag. When inserted into the holder (710), the handle supports the auxiliary bag so that the auxiliary bag is not separated.

In addition, the auxiliary bag (700) includes the auxiliary door formed to be opened and closed on the upper side or each of both sides thereof and the stopper (770) provided therein to support one or more bowling balls (B), thereby reliably supporting a plurality of bowling balls while preventing contact between the bowling balls.

In this case, the auxiliary bag (700) includes the fixing projection (731) protruding from the lower portion thereof so as to be supported by the coupling boss (735) of the body, and thus is firmly fixed without movement.

DESCRIPTION OF REFERENCE NUMERALS

100 . . . casing             110 . . . body
120 . . . storage space      170 . . . caster
200 . . . space support tray 300 . . . caster support portion
600 . . . support base       800 . . . handle support portion
900 . . . movement prevention member

Claims

1. A multi-purpose casing having a heavy-article support tray integrally formed therewith, the casing comprising a storage space partitioned in a vertical direction by at least one support tray provided therein and a plurality of casters provided at a lower portion thereof so as to enable movement in a horizontal direction or an inclined direction, wherein the casing comprises a body made of plastic and formed in a hexahedral shape having a predetermined thickness and comprising two side surfaces connected to upper and lower surfaces thereof and open front and rear surfaces, and the at least one space support tray provided on an inner side surface of the body in a height direction and a caster support portion to which each of the casters is mounted are integrally formed with the body when the body is formed,wherein the space support tray comprisesa) a first support surface extending to inner sides of the two side surfaces of the body in the storage space and a cavity portion integrally formed therein so as to be connected to outer sides of the two side surfaces, andb) a first round portion formed in at least one side of the first support surface,wherein the caster support portiona) is integrally formed with the body so as to protrude inward or outward from the body when the body is formed,b) comprises a fixing section through which a bolt hole having a section having a predetermined depth and a predetermined thickness is formed, andc) is configured to allow a caster having a brake to be fixed thereto,wherein the castera) comprises a fixing boss supported by the body via a coupling member and a drive wheel mounted to the fixing boss so as to be freely rotatable,b) is configured such that a positioning projection is provided on one side of the fixing boss and is supported in a positioning hole formed in one side of the bolt hole, andc) further comprises a guide ring made of metal and supported on an outer diameter portion of the fixing boss to prevent friction between the fixing boss and the bolt hole, andwherein the body is mounted so as to be movable horizontally and to enable storage and withdrawal of articles without falling of the articles by opening a door in a stopped state.

2. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, wherein the space support tray having the cavity portion is integrally formed with the body when the body is formed using a combination of an X-axis mold and a Y-axis mold entering in a direction intersecting the X-axis mold, and wherein, when the body is formed, the caster support portion is integrally formed by a combination of the X-axis mold and a Z-axis mold.

3. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, further comprising a support base integrally formed with the upper surface or the lower surface of the body, wherein the support base comprises a second support surface integrally extending from the body so as to protrude toward the storage space, andwherein a second round portion corresponding to a bowling ball is formed in the second support surface.

4. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, further comprising a handle support portion integrally formed with one of the two side surfaces of the body or at least one surface among the upper and lower surfaces of the body when the body is formed, wherein, when the body is formed, the handle support portion is integrally formed by a combination of a Y-axis mold having a bracket forming hole and an X-axis mold entering in a direction intersecting the Y-axis mold and having a protruding portion corresponding to the bracket forming hole ora combination of the Y-axis mold having the bracket forming hole, the X-axis mold entering in a direction intersecting the Y-axis mold and having the protruding portion corresponding to the bracket forming hole, and a Z-axis mold having a Z-axis protrusion penetrating the body.

5. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, further comprising a third support surface having a third round portion to support one side of a bowling ball and formed on at least one surface among the two side surfaces of the body so as to protrude inward, wherein the third support surface is integrally formed with the body by an X-axis mold when the body is formed, oris manufactured as a piece separately from the body and is assembled to the body.

6. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, further comprising a movement prevention member integrally formed with at least one selected from among the space support tray, the support base, and the third support surface, wherein the movement prevention member is implemented as at least one selected from among a tension portion comprising a cut portion formed in one side of the support surface so as to be elastically supported and a protrusion formed on an upper portion thereof, anda support belt mounted on one side of a ball support to prevent separation of a bowling ball and formed so as to be fastened and released.

7. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, wherein the body is provided with a handle support portion integrally formed therewith when the body is formed, wherein a handle mounted to the handle support portion has a telescopic structure and is tightly coupled to a receiving hole formed through the upper surface and the lower surface of the body via a fixing cap,wherein the receiving hole is formed to be reduced in diameter downward to press a lower side of the fixing cap inserted thereinto, andwherein a piece coupling portion is integrally formed with one side of the fixing cap to fix the handle to the body when the piece coupling portion is coupled as a piece to one side of the receiving hole.

8. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, wherein the body is further provided with a door connected to an open portion to open and close the open portion, and wherein the door has a pocket provided in an outer side or an inner side thereof, is made of fabric or plastic, and is connected so as to be opened and closed by means of a zipper, a hinge, or a snap button.

9. The multi-purpose casing having a heavy-article support tray integrally formed therewith according to claim 1, wherein the body is further provided with an auxiliary bag placed and supported on an upper side of the body while allowing a handle to pass therethrough, and wherein a holder made of fabric or plastic and having a mounting hole formed therein to allow the handle to be inserted therethrough in the vertical direction is integrally formed with the auxiliary bag, or is sewn to the auxiliary bag.