Patent Grant
10070703
The present technology relates to the attachable and detachable structure, and an apparatus, a device, and other product including the attachable and detachable structure.
For example, as a structure of wearing a wearable apparatus, e.g., a head mount type apparatus, a spectacle frame is often used (for example, see Patent Document 1). Other than the head mount type wearable apparatus, a wrist band type, i.e., a clock type apparatus is also proposed (for example, see Patent Document 2), and some apparatuses are already distributed on the market.
Patent Document 1: Japanese Patent Application Laid-open No. 2013-88725
Patent Document 2: Japanese Patent Application Laid-open No. 2013-140158
However, such a wearable apparatus requires a structure behind an ear or a structure wrapping around an arm, and the shape of the apparatus inevitably depends on the structure.
Accordingly, an object of the present technology is to provide an attachable and detachable structure that has less or no limitations for attachment and detachment and a product including the same.
In order to achieve the object, the attachable and detachable structure according to the present technology includes a superficial part and a base.
The superficial part has an attachment part and a non-attachment part.
The base supports the superficial part and moves one of the attachment part and the non-attachment part forward or backward to the other.
As the superficial part has the attachment part and the non-attachment part, the shape of the superficial part for attachment and detachment has less or no limitations. In the base supporting the superficial part, as one of the attachment part and the non-attachment part moves forward or backward to the other, the attachable and detachable structure can be achieved.
The base may drive correspondingly the attachment part and the non-attachment part by applying a compressive force or a tensile force to the base.
In this manner, for example, a user picks or pulls the base, thereby achieving the attachment and detachment of the superficial part.
The base may include a fixed layer that supports the attachment part, and a movable layer that supports the non-attachment part.
The movable layer may include a first movable part and a second movable part.
The first movable part is configured to support the non-attachment part. At least both ends of the first movable part are sandwiched by the fixed layers.
The second movable part is configured to be positioned deeper than the first movable part and disposed continuously from the first movable part.
The second movable part may spread from the first movable part.
By applying the compressive force to the base, the first movable part can protrude from the fixed layer.
The movable layer may be made of a material having a Young's modulus lower than that of the fixed layer.
The attachment part may include a plurality of hooks.
In this manner, the attachment part has a function of a hook-and-loop fastener, which allows easy attachment and detachment of the superficial part.
At least one head of the plurality of hooks may have a cone or pyramid shape.
In this manner, the subject to be attached is attached with certainty.
Directions of heads of the plurality of hooks may be two or more.
The superficial layer may include a plurality of non-attachment parts.
The attachment part may include a plurality of regions that are provided by partitioning the surface of the base and a plurality of hooks disposed on the plurality of regions. In addition, directions of heads of the hooks may be different per regions partitioned.
In this manner, a variety of the attachable and detachable structures having a plurality of directions of the heads of the hooks can be achieved.
The base may include a surface that configures the surface of the non-attachment part, and a holder for holding a lubricant material that is formed by opening the surface.
In this manner, the lubricant material is supplied from the non-attachment part to between the non-attachment part and the subject to be attached, thereby lubricating the non-attachment part which allows easy detachment.
The attachable and detachable structure is applicable to a variety of machines, devices, tools, electronic apparatuses and the like.
As above, according to the present technology, it can achieve an attachable and detachable structure that has less or no limitations for attachment and detachment.
It should be noted that the effect described here is not necessarily limitative and may be any effect described in the present disclosure.
Hereinafter, embodiments according to the present technology will be described with reference to the drawings.
1) Configuration of Attachable and Detachable Structure
The attachable and detachable structure 100 includes the superficial part 20, and a base 40 supporting the superficial part 20. The superficial part 20 includes an attachment part 22 and a non-attachment part 24. The superficial part 20 is an upper area in the figure from a surface 22a of the base 40 in the attachable and detachable structure 100. The attachment part 22 includes a plurality of hooks 23 protruded from the surface 22a of the base 40. In the non-attachment part 24, no hook 23 is provided, and a surface 24a of the base 40 is exposed. Hereinafter, for convenience of explanation, the surface of the base 40 corresponding to the attachment part 22 refers to a “attachment surface” 22a, the surface of the base 40 corresponding to the non-attachment part 24 refers to a “non-attachment surface”24a.
For example, when the attachable and detachable structure 100 is in a non-driven state, the attachment surface 22a is flush with the non-attachment surface 24a. Alternatively, in the non-driven state, when the non-attachment surface 24a is lower than heads of the hooks 23 in the figure, they may not be flush.
The base 40 is configured such that one of the attachment part 22 and the non-attachment part 24 moves forward or backward to the other. In this embodiment, it is configured that once a compressive force is applied to the base 40, the non-attachment part 24 (the non-attachment surface 24a) protrudes from the attachment part 22 (see the driven state in
For example, the base 40 includes a fixed layer 41 supporting the attachment part 22 (that is to say, a plurality of hooks 23), and the movable layer 47 supporting the non-attachment part 24. The movable layer 47 includes a movable part at the superficial layer side (a first movable part) 45 disposed at a superficial layer region 42 of the base 40, and a movable part at a deep layer side (a second movable part) 46 disposed at a deep layer side region 44 that is positioned deeper.
At least both ends of the movable part at the superficial layer side 45 are sandwiched by the fixed layers 41. For example, the movable part at the superficial layer side 45 is disposed such that the attachment part 22 surrounds the non-attachment part 24, as shown in
As shown in
For example, there may be a gap between the movable part at the superficial layer side 45 and the fixed layer 41. The gap may be about 1 μm.
The attachment surface 22a shown in
Height H: 50 μm to 5 mm
Thickness T: 10 μm to 1 mm
Curvature angle θ: 50° to 150°
Slope angle α: 110° to 155°
Angle of head β: 40° to 80°
For example, when a subject (not shown) to which the attachable and detachable structure is attached (hereinafter referred to as “subject to be attached”) is a cloth, a thickness of fibers such as thicker ones of wool and silk of the cloth is about 50 μm. Accordingly, 50 μm or more of the height H may be sufficient. An upper limit of the thickness is set to 5 mm within a range that does not affect appearance (JIS P 8208).
The head 23a is excluded from the thickness T. The thickness T is represented by an average value, a maximum value or a minimum value. A lower limit of the thickness T is about 15 μm that is a thickness of a mosquito's needle, and is here set to 10 μm. As a real upper limit, 1 mm is selected.
When a curved part of the hook 23 is arc, for example, the curvature angle θ is an angle at circle center of the arc. The arc passes through the center of the hook 23 shown by a dashed line. The hook 23 shown in
The curvature angle θ is set to, for example, 50° to 150°, or 80° to 120°, for example, 90°. In this way, when the subject to be attached is fibers, the hook 23 can be caught by the fibers.
The slope angle α of the hook 23 is an angle against the attachment surface 22a from a center of the root of the hook 23 to a maximum height (H). The slope angle α is set to 110° to 155°, for example. If the slope angle α exceeds 155°, the hooks less catch the subject to be attached, e.g., loop fibers, for example. If the slope angle α is lower than 110°, the hooks that are caught by the subject to be attached, e.g., loop fibers, are easily loosened, for example. In other words, if the slope angle α is not within the defined range, the hook is not adequately engaged with the loop fibers. The slope angle α is more preferably 120° to 150°.
The angle β of the head 23a is set to 40° to 80°, e.g., 60° so that a force that pierces the subject to be attached is dispersed. However, the head 23a of the hook may not be pointed sharply, and may be rectangular or curved surface.
The shape and the size of the hook 23 described above are only illustrative, and may be changed depending on the structure of the subject to be attached. Desirably, the hook 23 may have an elastic force against the subject to be attached, e.g., fibers, and may have the size and the shape therefor. In order to achieve this, materials described later are used.
The movable layer 47 is made of a material having a Young's modulus lower than that of the fixed layer 41. In other words, in order to drive the movable layer 47 to the fixed layer 41, the movable layer 47 is made of the material softer than that of the fixed layer 41. The movable layer 47 is made of rubber, and the fixed layer 41 is made of resin, for example.
Both of the movable layer 47 and the fixed layer 41 may be made of resin. As the resin, PEEK, PC, PMMA, POM, PU, PET, PA, PCTFE, PTFE, FEP, PFA, ETFE, PVDF, soft PVC, PVA, ABS, PP, PMMAPS or the like may be selectively used. For example, the material having a relatively high Young's modulus includes POM and ABS. The material having a relatively low Young's modulus includes PP and PTFE.
The material of the hook 23 is typically made of the above-described resin materials. Desirable materials of the hook 23 include nylon+PP (synthetic of nylon and PP), PC, PE, POM or the like.
The attachable and detachable structure 100 configured as described above is formed by an injection molding apparatus (not shown) or a 3D printer (molding apparatus), for example. The molding apparatuses described in, for example, Japanese Patent Application Laid-open No. 2012-040757, Japanese Patent Application Laid-open No. 2012-106437, Japanese Patent Application Laid-open No. 2012-240216, Japanese Patent Application Laid-open No. 2013-207060, Japanese Patent Application Laid-open No. 2013-059983 can be used.
The attachable and detachable structure 100 is formed by injection molding, e.g., multicolor molding, in-mold molding or the like. By the molding, the fixed layer 41 and the movable layer 47 of the base 40 can be formed.
When the molding apparatus is used for forming at least the base 40, a different plurality of resin materials can be used for molding by using the molding apparatus described in eighth and ninth embodiments of Japanese Patent Application Laid-open No. 2012-040757.
The base 40 and the attachment part 22 may be formed in different steps, and thereafter a sheet type attachment part having hooks 23 may be joined to the surface corresponding to the attachment part 22 of the base 40. As a joining method, an adhesive agent and ultrasonic bonding are used.
Alternatively, while the base 40 is formed by injection molding, the above-described sheet type attachment part 22 having hooks 23 may be formed by the molding apparatus.
For example, the molding by the molding apparatus described in Japanese Patent Application Laid-open No. 2013-059983 is repeated to laminate sheet type molded products, thereby forming the above-described sheet type attachment part 22 having hooks 23.
When the molding apparatus is used, the fixed layer 41 of the base 40 may be formed by photo-curing resin, and the movable layer 47 made of rubber may be formed by flowing a material such as rubber into a path (space where the movable layer 4 is to be formed) in the fixed layer 41.
2) Operation of Attachable and Detachable Structure
When the attachable and detachable structure 100 configured as described above is used, a user presses an apparatus, a machine, a device or a tool (not shown) having the attachable and detachable structure 100 thereon (hereinafter referred simply as “a product including the attachable and detachable structure”) to the subject to be attached. In this manner, by a function of the hook-and-loop fastener of the attachment part 22 having the hooks 23, the product having the attachable and detachable structure 100 is attached to the subject to be attached having a fibrous surface.
As shown in
In particular, as the movable part at the deep layer side 46 spreads conically or radially from the movable part at the superficial layer side 45, not only the compressive force, but also the elastic force applied at the movable part at the deep layer side 46 are easily transmitted to the movable part at the superficial layer side 45, and the movable part at the superficial layer side 45 easily moves to an upper direction in the figure. As a result, the movable part at the superficial layer side 45 can protrude from the attachment part 22 with certainty.
Once applying the compressive force by the user is stopped, the attachable and detachable structure 100 returns to the original shape by the elastic force of the movable layer 47, and the non-attachment surface 24a returns to the original position (see
By adequately designing an area ratio of the attachment surface 22a and the non-attachment surface 24a, a density of the hooks 23 or the like, the operation of attachment and detachment can be achieved.
3) Summary
In the attachable and detachable structure 100 according to the embodiment, as the superficial part 20 includes the attachment part 22 and the non-attachment part 24, the shape of the superficial part 20 for attachment and detachment has less or no limitations. In addition, as the base 40 moves such that one of the attachment part 22 and the non-attachment part 24 moves forward or backward to the other, the attachable and detachable structure can be achieved.
As the attachable and detachable structure 100 according to the embodiment has the hooks 23, the function of the hook-and-loop fastener can be exerted on the attachment part 22, which allows easy attachment.
As each heads 23a of the hooks 23 in the attachable and detachable structure 100 has a cone or pyramid shape, the heads 23a easily pierce the subject to be attached, and the attachable and detachable structure 100 can be attached to the subject to be attached with certainty.
The attachable and detachable structure 100 according to the embodiment has a rectangular shape in a planar view as shown in
The cross-sectional shape of the attachable and detachable structure 100 shown in
The movable layer 147 of an attachable and detachable structure 200 shown in
The holder 30 includes a reservoir 32 of the lubricant material S and a pipe 33 for communicating the reservoir 32 with an opening 31, for example. In the below, design criteria of the holder 30 are shown.
Inner diameter r of pipe 33: a desirable value of r is that satisfies the following equation (1) of capillary phenomenon to the lubricant material S used, or the value is not more than r.
Diameter of reservoir 32 (or volume equivalent diameter) R: a desirable value is greater than the inner diameter r of the pipe 33.
Length m of pipe 33: not especially limited.
h=(2T cos θ)/ρgr equation (1)
h: increased height of liquid surface
T: surface tension
θ: contact angle
ρ: density of lubricant material S
g: acceleration of gravity
r: inner diameter of pipe
As the lubricant material S, lubricant oils such as silicone oil, vegetable oil, animal oil, and general grease are used.
When the plurality of holders 30 are disposed, a two-dimensional arrangement may be any of matrix, zigzag, random and the like.
As the attachable and detachable structure according to the embodiment has holder 30, the lubricant material S is supplied from the non-attachment part 24 to between the non-attachment part 24 and the subject to be attached, thereby lubricating the non-attachment part 24 which allows easy detachment.
An attachable and detachable structure 400 shown in
The attachable and detachable structure 400 shown in
In the embodiment shown in
By such a configuration, a variety of the attachable and detachable structures having a plurality of directions of the heads of the hooks 23 can be achieved.
When a product having the attachable and detachable structure is attached to the subject to be attached and used in one direction, the attachable and detachable structure may only include the hooks 23 formed in one direction.
Structure
Examples of a product having the attachable and detachable structure 100 are as follows (not shown):
The product is, for example, a lifelog camera, a clock, a microphone, a predometer, a portable phone, other portable apparatus, a mask, eye glasses, a hearing aid, an identification card such as an employee ID card.
The present technology is not limited to the above-described embodiments, and variations and modifications may be achieved.
The above-described embodiment describes the attachable and detachable structure having the protruded non-attachment part 24 by applying the compressive force to the base 40. It is also achievable that the movable layer is elastically deformed by applying a tensile force to the base, i.e., by pulling the base. In this case, the attachable and detachable structure has a configuration that the movable layer supports the attachment part, and the fixed layer supports the non-attachment part. By applying the tensile force to the movable layer, the attachable and detachable structure has a configuration that the attachment part supported by the movable layer migrates to inside of the base so as to correspondingly protrude the non-attachment part supported by the fixed layer.
Alternatively, a material that is elongated by applying the tensile force to the base may be used as the material of the movable layer. Such a material may be an auxetic material, for example. The auxetic material may be provided by assembling a number of three-dimensional shapes such as a wave dissipating block formed in a micro level, for example.
Alternatively, a material that elastically deforms the movable layer 47 by turning on electricity to the movable layer 47 may be used for the movable layer 47. Examples of the material include a piezo-electric device, a bimetal, a conductive polymer and the like.
A space may be provided between the movable part at the superficial layer side and the movable part at the deep layer side, and a spring may be disposed in the space. That is to say, the spring is disposed between the movable part at the superficial layer side and the movable part at the deep layer side. The spring is typically a coil spring, but may be a flat spring. In this cases, the molding apparatus can form at least the movable layer including the movable part at the deep layer side, the spring, and the movable part at the superficial layer side.
The attachment part 22 of the attachable and detachable structure according to the above-described embodiments includes a plurality of hooks 23, but may instead include an adhesive layer on the surface of the base. The adhesive layer is configured of adhesive rubber, adhesive resin, an adhesive tape, etc., for example. In this case, the attachable and detachable structure is desirably applied to a usage that the attachable and detachable structure is directly adhered to a human skin.
For example, when a plurality of electronic apparatuses each having the attachable and detachable structure are directly attached to a human body and the electronic apparatuses are mutually communicated, a communication system may be wireless LAN, Bluetooth, infrared, as well as intra-body communication.
In the base of the attachable and detachable structure according to the above-described embodiments, a lubricant material may be filled between the movable layer and the fixed layer.
It is also possible to combine at least two features of the above-described features of the embodiments.
The present disclosure may have the following configurations.
(1) An attachable and detachable structure, including:
a superficial part having an attachment part and a non-attachment part, and
(2) The attachable and detachable structure according to (1) above, in which
the base drives correspondingly the attachment part and the non-attachment part by applying a compressive force or a tensile force to the base.
(3) The attachable and detachable structure according to (2) above, in which
the base includes
(4) The attachable and detachable structure according to (2) above, in which
the movable layer includes
(5) The attachable and detachable structure according to (4) above, in which
the second movable part spreads from the first movable part.
(6) The attachable and detachable structure according to any one of (1) to (5) above, in which
the movable layer is made of a material having a Young's modulus lower than that of the fixed layer.
(7) The attachable and detachable structure according to any one of (1) to (6) above, in which
the attachment part includes a plurality of hooks.
(8) The attachable and detachable structure according to (7) above, in which
at least one head of the plurality of hooks has a cone or pyramid shape.
(9) The attachable and detachable structure according to (7) or (8) above, in which
directions of heads of the plurality of hooks are two or more.
(10) The attachable and detachable structure according to any one of (6) to (9) above, in which
the superficial layer includes a plurality of non-attachment parts.
(11) The attachable and detachable structure according to any one of (1) to (9) above, in which
the attachment part includes a plurality of regions that are provided by partitioning the surface of the base and a plurality of hooks disposed on the plurality of regions, and
directions of the heads of the hooks are different per regions.
(12) (1) The attachable and detachable structure according to any one of (1) to (11) above, in which
the base includes
(13) A product having an attachable and detachable structure, including:
a superficial part having an attachment part and a non-attachment part, and
| Number | Date | Country | Kind |
|---|---|---|---|
| 2014-092914 | Apr 2014 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2015/000908 | 2/24/2015 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2015/166614 | 11/5/2015 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4426816 | Dean | Jan 1984 | A |
| 20050235462 | Takahashi | Oct 2005 | A1 |
| 20090307869 | Salice | Dec 2009 | A1 |
| Number | Date | Country |
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| 1977-050007 | Apr 1977 | JP |
| 1979-102305 | Jul 1979 | JP |
| 1988-167904 | Nov 1988 | JP |
| 2003-259904 | Sep 2003 | JP |
| 2004-188004 | Jul 2004 | JP |
| 2010-502868 | Jan 2010 | JP |
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| International Search Report and Written opinion and English translation thereof dated Jun. 2, 2015 in connection with International Application No. PCT/JP2015/000908. |
| International Preliminary Report on Patentability and English translation thereof dated Nov. 10, 2016 in connection with International Application No. PCT/JP2015/000908. |
| Number | Date | Country | |
|---|---|---|---|
| 20170042295 A1 | Feb 2017 | US |
