Mobile Device Accessories

Abstract

The accessory for a mobile device proposed by the present invention includes a coupling unit formed so as to be attachable to one side of a mobile device or a case surrounding the mobile device, an elastic deformation member connected to the coupling unit, and a cover unit connected to the elastic deformation member and whose distance from the coupling unit increases or decreases depending on the elastic deformation of the elastic deformation member, wherein the elastic deformation member includes a first cone-shaped part arranged close to the coupling unit and having a curved surface with a bulging side, a second cone-shaped part arranged close to the cover unit and having a curved surface with a bulging side, and a connecting part connecting the first cone-shaped part and the second cone-shaped part to each other, and the outer diameter of the second cone-shaped part is formed larger than the outer diameter of the first cone-shaped part.

Description

[Technical Field]

[0001] The present invention relates to a mobile device accessory that is attached to a mobile device or a case that surrounds the mobile device. [Background technology]

[0002] With the spread of mobile devices such as smartphones and tablet PCs, various accessories for mobile devices have been proposed. Among them, Patent Document 1 discloses an extending socket that is attached to the back of a mobile device or a mobile device case.

[0003] The expansion socket disclosed in the above patent document has a structure called an accordion, which has rigid walls (10, 11, 12) and flexural or living hinges (9) between them, and the expansion socket is expanded and contracted by folding and unfolding both side walls based on the flexural hinges.

[0004] Such an expansion socket can provide various functions. For example, when carrying a portable device or case, the expansion socket can be transformed into a contracted state to reduce the volume of space occupied by the expansion socket. Also, when the portable device or case is placed on its side or held, the expansion socket can be transformed into an expanded state to provide a convenient function to the user.

[0005] However, the expansion socket disclosed in the above-mentioned patent document has the following points that need to be improved.

[0006] First, when gripping a mobile device or case, two fingers are placed on both sides of the bellows after the expansion socket is expanded, but the repeated arrangement of rigid walls and bending hinges does not provide the user with a soft grip due to the presence of steps.

[0007] Furthermore, since human fingers have a shape that can be bent or folded toward the palm, it is preferable to provide a structure that allows the user to grip a portable device or case in accordance with the bending or folding shape of the fingers when holding the portable device or case in the hand. However, the bellows disclosed in the above patent document has a tapered shape that gradually narrows toward one side, which causes the distal and middle phalanges of the fingers to come into close contact with the portable device or case, and therefore cannot be said to provide a structure that allows the user to grip the portable device in accordance with the bending or folding shape of the fingers.

[0008] Furthermore, to increase the expansion length of the expansion socket, the number of repeated arrangements of the rigid wall and the bending hinge must increase, which causes an increase in the outer diameter of the button 1 where the expansion socket is located at its distal end.

[0009] Furthermore, flexure hinges or living hinges are formed by processing fold lines, which are points of weakness and tearing due to repeated folding and unfolding. [Prior art documents] [Patent documents]

[0010] [Patent Document 1] U.S. Patent No. 8,560,031 Summary of the Invention [Problem to be solved by the invention]

[0011] A first object of the present invention is to provide an accessory for a mobile device that provides a user with a softer grip feeling.

[0012] A second object of the present invention is to provide an accessory for a mobile device that provides a user with a more comfortable grip by having a structure that allows the accessory to be gripped in accordance with the curved or folded shape of a human finger.

[0013] A third object of the present invention is to provide an accessory for a portable device that solves the problem of an increase in the outer diameter of a structure located at the distal end of the accessory and has a structure that allows an increase in the extended length.

[0014] A fourth object of the present invention is to provide an accessory for a portable device that does not suffer from substantial deterioration in durability or tearing even after repeated use. [Means for solving the problem]

[0015] The present invention provides an accessory for a portable device, which includes a coupling unit formed to be attachable to one surface of a portable device or a case surrounding the portable device, an elastically deformable member connected to the coupling unit, and a cover unit connected to the elastically deformable member and whose distance from the coupling unit increases or decreases depending on the elastic deformation of the elastically deformable member. The elastically deformable member includes a first cone-shaped part arranged close to the coupling unit and having a curved surface with a bulging side, a second cone-shaped part arranged close to the cover unit and having a curved surface with a bulging side, and a connecting part connecting the first cone-shaped part and the second cone-shaped part to each other, 1. Cone-shaped part and 2 cone-shaped parts Either one The outer diameter is On the other hand The outer diameter of the casing is made larger than that of the casing.

[0016] The state in which the coupling unit and the cover unit approach each other due to the elastic deformation of the elastic deformation member is defined as a contracted mode, and the state in which the coupling unit and the cover unit move away from each other due to the elastic deformation of the elastic deformation member is defined as an extended mode, and when transforming from the extended mode to the contracted mode, at least one side of the first cone-shaped part and the second cone-shaped part elastically deforms so as to bend.

[0017] When the expansion mode is changed to the contraction mode, an inflection point where the sign of the curvature changes occurs on the side surface of the first cone-shaped part and the side surface of the second cone-shaped part.

[0018] An interference prevention slit groove for at least one of the coupling unit and the cover unit in the contracted mode is formed on the inner circumferential surface of each of the first cone-shaped part and the second cone-shaped part.

[0019] In the region where the slit groove is formed, the thickness of the cross section of the first cone-shaped part and the thickness of the cross section of the second cone-shaped part are formed thinner than the surrounding region.

[0020] The slit groove is formed in the shape of a closed curve on the inner circumferential surface of the first cone-shaped part and the inner circumferential surface of the second cone-shaped part.

[0021] The slit groove is formed in a region that is spaced apart from the cover unit in the expanded mode and moves to a position facing the cover unit when elastically deformed into the contracted mode.

[0022] The elastic deformation member is integrally formed by injection molding and is made of silicon material.

[0023] When the device is transformed from an extended mode in which the distance between the coupling unit and the cover unit is increased to a reduced mode in which the distance between the coupling unit and the cover unit is decreased, the second cone-shaped part is configured to cover the first cone-shaped part.

[0024] The connecting part extends in a direction in which the coupling unit and the cover unit approach or move away from each other, and both ends of the connecting part are connected to the first cone-shaped part and the second cone-shaped part, respectively.

[0025] The cross-sectional thickness of the connecting part is formed to be thicker than the cross-sectional thickness of the first cone-shaped part or the cross-sectional thickness of the second cone-shaped part, so that when the device is transformed from the expansion mode to the contraction mode, the connecting part presses the first cone-shaped part and the second cone-shaped part to elastically deform them.

[0026] In a retracted mode in which the coupling unit and the cover unit are closer to each other, the connecting part overlaps with at least one of the side surfaces of the first cone-shaped part and the second cone-shaped part, based on the radial direction of the elastic deformation member.

[0027] In the contracted mode, based on the radial direction of the elastic deformation member, the connecting part overlaps with the side of the first cone-shaped part at a relatively close position, and the connecting part overlaps with the side of the second cone-shaped part at a relatively far position.

[0028] The internal space of the elastically deformable member is divided into a first region, a second region, and a third region, the first region being defined as the region surrounded by the first cone-shaped part, the second region being defined as the region surrounded by the second cone-shaped part, and the third region being defined as the internal region of the connecting part, the coupling unit being provided with a first magnet accommodating portion formed facing the first region, and the cover unit being provided with a second magnet accommodating portion formed facing the second region.

[0029] When the elastic deformation member is deformed into a contracted mode in which the coupling unit and the cover unit are brought closer to each other, the first magnet provided in the first magnet accommodating section and the second magnet provided in the second magnet accommodating section come closer to each other within a range in which their attractive forces act.

[0030] The first magnet and the second magnet are maintained at a predetermined distance from each other so that an attractive force acts therebetween.

[0031] With respect to its position from the portable device or the case as a reference, the distal part of the elastically deformable member has a hollow shape, and the cover unit includes a top mount exposed from an empty area of ​​the distal part of the elastically deformable member, an adhesive film covering the upper surface of the top mount, and a cover cap formed to have a larger outer diameter than the distal part and positioned to cover both the adhesive film and the distal part.

[0032] The edge of the top mount has a step portion bent downward, and an insertion portion formed by bending the end of the step portion radially, and the inner surface of the distal part has a top mount fixing groove into which the insertion portion of the top mount is inserted and fixed.

[0033] An outer edge cover portion and a cap fixing protrusion are formed on the underside of the edge of the cover cap, and the outer edge cover portion is formed with an inclined surface that becomes lower in the radial direction so as to cover the entire upper end of the distal part, and is formed with a thickness greater than other parts of the cover cap, and the cap fixing protrusion protrudes from the inside of the outer edge cover portion toward the distal part based on the radial direction of the cover cap, and a cover cap fixing groove is formed on the upper part of the distal part so that the cap fixing protrusion is inserted to fix the cover cap.

[0034] The cap fixing protrusions are formed in plurality and are spaced apart from one another along the circumference of the cover cap, and the cover cap fixing grooves are formed along the circumference of the distal part at positions corresponding to the positions where the cap fixing protrusions are formed.

[0035] The top mount has a second magnet accommodating portion formed in the center that communicates with the internal space of the elastically deformable member, and the second magnet inserted into the second magnet accommodating portion has an edge portion that protrudes circumferentially along the outer circumferential surface between the upper end and the lower end.

[0036] The second magnet accommodating portion has a stepped protrusion portion that extends inward from the inner circumferential surface of the lower end of the second magnet accommodating portion to fix the second magnet, and the stepped protrusion portion is formed in multiple numbers and positioned spaced apart from each other in the circumferential direction of the second magnet accommodating portion.

[0037] A magnet fitting portion is formed at the upper end of the second magnet accommodating portion, and the magnet fitting portion has a downwardly inclined surface at the end facing the center of the top mount to guide the insertion of the second magnet, and fixes the second magnet when placed in the second magnet accommodating portion.

[0038] The magnet fitting portion has cutouts formed on both sides in the radial direction of the top mount.

[0039] Based on its position from the portable device or the case, the proximal part of the elastic deformation member has a hollow shape, and the connecting unit includes a lower mount that finishes the empty area of ​​the proximal part of the elastic deformation member, a lower cap that fixes the edge of the lower mount and the edge of the proximal part in close contact with each other, and a protective tape that covers the underside of the lower mount and the lower cap.

[0040] The proximal part includes a fixed wing portion formed along the circumference of the proximal part and disposed between the lower cap and the lower mount to fix the elastic deformation member to the coupling unit, and a plurality of coupling guide portions protruding radially from the fixed wing portion, which are formed in a manner spaced apart from each other along the circumference of the fixed wing portion.

[0041] The lower mount includes a plurality of coupling mount portions spaced apart from one another along the circumference of the edge, each formed at a position corresponding to the coupling guide portion, and a close-contact fixing portion protruding radially between the coupling mount portions to closely fix the fixing wing portion to the lower surface of the lower cap.

[0042] The lower cap is formed in a disk shape with a hollow hole formed in the center, and the edge of the proximal part is inserted into the hollow hole. A first locking hook is formed on the underside, extending downward with its end bent inward, and the end of the close-fitting part is bent upward and then bent outward again to form a second locking hook, which is formed to engage with the first locking hook. The engagement of the first locking hook and the second locking hook causes the edge of the proximal part to be tightly fixed between the lower surface of the lower cap and the upper surface of the lower mount.

[0043] The lower mount has a first magnet accommodating portion formed in the center that communicates with the internal space of the elastically deformable member, and the first magnet inserted into the first magnet accommodating portion has an edge portion that protrudes circumferentially along the outer circumferential surface between its upper and lower ends.

[0044] The first magnet accommodating portion has a stepped protrusion portion that extends inward from the inner circumferential surface of the upper end of the first magnet accommodating portion to fix the first magnet, and the stepped protrusion portion is formed in plurality and positioned spaced apart from each other in the circumferential direction of the first magnet accommodating portion.

[0045] A magnet fitting portion is formed at the lower end of the first magnet accommodating portion, and the magnet fitting portion has an upwardly inclined surface at an end portion facing the center of the lower mount so as to guide the insertion of the first magnet. 1 Fix the magnet.

[0046] The magnet fitting portion has cutouts formed on both sides in the radial direction of the lower mount. [Effects of the Invention]

[0047] The effects of the present invention obtained by the above-mentioned solution are as follows.

[0048] According to the present invention, the side surfaces are made of curved surfaces without any processing of the folding lines, the elastic deformation member is integrally formed by injection molding, and / or the silicone material allows the user to have an even softer grip than before.

[0049] In addition, the hourglass-shaped elastic deformation member as a whole separates the distal and middle phalanges of the finger from the mobile device or case, allowing the mobile device accessory to be gripped in the shape of a bent or folded finger. Therefore, a mobile device accessory having such a structure provides a more comfortable grip than conventional accessories.

[0050] The overlapping and covering structure of the first cone-shaped part and the second cone-shaped part proposed in the present invention To make This allows the expanded length of the portable device accessory to be increased without excessively increasing the outer diameter of the cover unit and the distal part of the portable device accessory.

[0051] Furthermore, the deterioration of durability and tearing due to repeated use start from the folding line, but as proposed in this invention, the folding line processing If the above-mentioned method is not adopted, it is possible to provide an accessory for a portable device that does not suffer from a substantial decrease in durability or tearing even when used repeatedly. [Brief explanation of the drawings]

[0052] [Figure 1] 1 is a perspective view of a mobile device accessory proposed in the present invention, viewed from one side; [Figure 2] FIG. 2 is a perspective view of the mobile device accessory proposed in the present invention, seen from another side. [Figure 3] 1 is a side view of a mobile device accessory proposed by the present invention. [Figure 4] 1 is a cross-sectional view of a mobile device accessory proposed in the present invention in an extended mode. [Figure 5] 1 is an exploded perspective view showing an accessory for a mobile device proposed in the present invention as viewed from one side. [Figure 6]FIG. 2 is an exploded perspective view showing the accessory for a mobile device proposed in the present invention as viewed from the other side. [Figure 7] 1 is a cross-sectional view of a mobile device accessory proposed in the present invention in a contracted mode. [Figure 8] 10 is a diagram showing a structure in which the cover unit of the mobile device accessory proposed in the present invention is installed on the distal part of the elastic deformation member. [Figure 9] 10 is a diagram showing a structure in which the coupling unit of the mobile device accessory proposed in the present invention is installed on the proximal part of the elastic deformation member. [Figure 10] 1 is an exploded perspective view showing a cover unit of a mobile device accessory proposed in the present invention. [Figure 11] 1 is an exploded perspective view showing a coupling unit of a mobile device accessory proposed in the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0053] Hereinafter, a mobile device accessory according to the present invention will be described in more detail with reference to the drawings. Here, the mobile device accessory refers to a device that is attached to a mobile device or a case surrounding the mobile device to provide convenience to a user.

[0054] The accompanying drawings are merely for facilitating understanding of the embodiments disclosed in this specification, and are not intended to limit the technical ideas disclosed in this specification, but should be understood to include all modifications, equivalents, and alternatives included in the idea and technical scope of the present invention.

[0055] As used herein, the singular expression includes the plural expression unless the context clearly indicates otherwise.

[0056] In this specification, when a component is said to be "coupled" or "connected" to another component, it should be understood that the component may be directly coupled or connected to the other component, or that there may be other components in between. Conversely, when a component is said to be "directly coupled" or "directly connected" to another component, it should be understood that there are no other components in between.

[0057] Furthermore, it should be understood that the terms "comprise" and "have" are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof set forth in the specification, but do not preclude the presence or possible addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0058] FIG. 1 is a perspective view of an accessory for a portable device proposed in the present invention, seen from one side.

[0059] FIG. 2 is a perspective view of the accessory for a mobile device proposed in the present invention, seen from the other side.

[0060] FIG. 3 is a side view of the portable device accessory proposed by the present invention.

[0061] The mobile device accessory 100 proposed in the present invention includes a coupling unit 110, an elastic deformation member 120, and a cover unit 130. The mobile device accessory 100 also includes a protective tape 114.

[0062] The coupling unit 110 is formed so as to be attachable to one surface of the mobile device 10 or a case (not shown) surrounding the mobile device. Here, the one surface of the mobile device 10 or the one surface of the case mainly refers to a flat surface, such as the back surface of the mobile device 10 or the case, but is not necessarily limited thereto.

[0063] In the present invention, the mechanism by which the coupling unit 110 is attached to the mobile device or case is not particularly limited. For example, the mechanism may be a magnetic force between the fixing magnet 115 and a magnet, or a magnetic force between the magnet 115 and a metal. The mechanism may also be an adhesive tape, or various other mechanisms may be applied.

[0064] The coupling unit 110 is coupled to the elastic deformation member 120 and restrains the elastic deformation member 120 from being arbitrarily separated.

[0065] The coupling unit 110 may be configured as a single component that is applied to the mobile device accessory 100, or may be configured as an assembly including components such as the lower cap 111 and lower mount 113 described below.

[0066] The elastic deformation member 120 is configured to elastically deform to expand and contract the mobile device accessory 100. The expansion mode of the mobile device accessory 100 is defined as a state in which the coupling unit 110 and the cover unit 130 are moved away from each other due to the elastic deformation of the elastic deformation member 120. The contraction mode of the mobile device accessory 100 is defined as a state in which the coupling unit 110 and the cover unit 130 are moved closer to each other due to the elastic deformation of the elastic deformation member 120.

[0067] The elastic deformation member 120 is disposed between the coupling unit 110 and the cover unit 130, which will be described later, and is connected to the coupling unit 110 and the cover unit 130. With the elastic deformation member 120 sandwiched between them, the coupling unit 110 is disposed closer to the mobile device 10 or the case, and the cover unit 130 is disposed farther from the mobile device 10 or the case. When a user applies pressure to the cover unit 130, the elastic deformation member 120 undergoes elastic deformation, and the mobile device accessory 100 transforms from the extended mode to the retracted mode.

[0068] The structure of the mobile device accessory 100 will be described in more detail below with reference to cross-sectional views and exploded perspective views.

[0069] FIG. 4 is a cross-sectional view of the portable device accessory proposed in the present invention in an expanded state.

[0070] FIG. 5 is an exploded perspective view showing an accessory for a mobile device proposed in the present invention as viewed from one side.

[0071] FIG. 6 is an exploded perspective view showing the accessory for a mobile device proposed in the present invention as viewed from the other side.

[0072] The coupling unit 110 may be circular with a central hollow 110a, or may be relatively flat but tall. If the mechanism by which the coupling unit 110 is attached to the mobile device or case is magnetic, a plurality of fixing magnets 115 may be arranged along the circumference of the bottom cap 111 that forms an annular region between the outer edge of the coupling unit 110 and the hollow 110a.

[0073] The coupling unit 110 is configured to include a lower cap 111, a lower mount 113, and a protective tape 114, which will be described later. Here, the coupling unit 110 may be formed such that the lower cap 111 surrounds the fixing magnet 115 from three directions. Here, the three directions refer to the first direction toward the mobile device or case, the second direction toward the outside from the hollow 110a of the coupling unit 110, and the third direction from the outside of the coupling unit 110 toward the inner hollow 110a. In FIG. 4, the portions of the lower cap 111 surrounding the fixing magnet 115 from each direction are indicated by reference numerals 111a, 111b, and 111c. In this way, the fixing magnet 115 is press-fit into the annular region RA formed by the surrounding portions 111a, 111b, and 111c from the three directions.

[0074] Here, the direction in which the coupling unit 110 and the cover unit 130 move closer to or farther away from each other refers to the direction in which the mobile device accessory 100 is contracted (contraction direction) or expanded (expansion direction). In Fig. 4, the contraction direction of the mobile device accessory 100 is indicated by D1, and the expansion direction is indicated by D2.

[0075] Reduction direction D1 and expansion direction D2 The names are arbitrary. The contraction direction D1 is the direction in which the coupling unit 110 is attached to the portable device and may be called the first direction. The expansion direction D2 is the direction in which the coupling unit 110 is detached from the portable device and may be called the second direction. Similar to the relationship between the contraction direction D1 and the expansion direction D2, the first direction and the second direction are opposite to each other.

[0076] Based on the position from the portable device or case to which the coupling unit 110 is attached, the proximal part 124 of the elastically deformable member 120 is coupled to the coupling unit 110, and the distal part 125 of the elastically deformable member 120 is coupled to the cover unit 130.

[0077] A first cone-shaped part 121 and a second cone-shaped part 122 are formed between the distal part 125 and the proximal part 124, and a connecting part 123 may be formed between the first cone-shaped part 121 and the second cone-shaped part 122. Each part will be described below.

[0078] The cone shape defining the shapes of the first cone-shaped part 121 and the second cone-shaped part 122 has a relatively small outer diameter at one end and a relatively large outer diameter at the other end, and the side surfaces 121 a, 122 a between the end and the other are bulging curved surfaces, forming a three-dimensional shape. Such a cone shape may be named by other names, for example, a cone shape with rounded side surfaces 121 a, 122 a, a truncated cone shape with rounded sides, or a bell shape with rounded sides.

[0079] The first cone-shaped part 121 is configured to be disposed in a position close to the coupling unit 110, and the second cone-shaped part 122 is configured to be disposed in a position close to the cover unit 130, and they have in common that their respective side surfaces 121a, 122a are formed of convex curved surfaces. However, the sizes and detailed shapes of the first cone-shaped part 121 and the second cone-shaped part 122 may be different. For example, referring to the drawings, the second cone-shaped part 122 has an outer diameter larger than that of the first cone-shaped part 121, and when the mobile device accessory 100 is in the collapsed state, Can be switched In this case, the second cone-shaped part 122 may cover the first cone-shaped part 121 due to the difference in outer diameter.

[0080] As mentioned above, a cone shape may be called a bell shape. In the names of the various parts of a bell, the head refers to the apex where the outer diameter is reduced or the surrounding area thereof, and the lip refers to the area around the opening on the opposite side of the head. The terms head and lip can be applied in a similar manner to a cone shape. For example, the outer diameter of a cone shape gradually increases or decreases in one direction as a whole. In a cone shape, the apex where the outer diameter is reduced or the surrounding area thereof corresponds to the heads 121b and 122b of the first cone-shaped part 121 and the second cone-shaped part 122, and the area opposite the heads 121b and 122b that has a larger outer diameter than the heads corresponds to the lips 121c and 122c.

[0081] The first cone-shaped part 121 and the second cone-shaped part 122 face in opposite directions. Specifically, the head 121b of the first cone-shaped part 121 and the head 122b of the second cone-shaped part 122 face toward each other. Furthermore, the opposite portions of the two heads 121b and 122b, i.e., the two lips 121c and 122c, face in opposite directions.

[0082] The heads 121b, 122b of the first cone-shaped part 121 and the second cone-shaped part 122 are directly or indirectly connected to each other. This means that there may or may not be another structure connecting the first cone-shaped part 121 and the second cone-shaped part 122. When the first cone-shaped part 121 and the second cone-shaped part 122 are indirectly connected to each other, a connecting part 123 is provided between the first cone-shaped part 121 and the second cone-shaped part 122.

[0083] The connecting part 123 is located between the first cone-shaped part 121 and the second cone-shaped part 122, and connects the head 121b of the first cone-shaped part 121 and the head of the second cone-shaped part 122. Do 1 The connecting part 123 connects the first cone-shaped part 121 and the second cone-shaped part 122 to each other by extending in a direction D1 in which the coupling unit 110 and the cover unit 130 approach each other or in a direction D2 in which the coupling unit 110 and the cover unit 130 move away from each other.

[0084] Alternatively, the connecting part 123 may be formed so that its outer diameter gradually increases toward both ends. Here, both ends refer to both ends in the contraction direction D1 or expansion direction D2 of the mobile device accessory 100. Therefore, the connecting part 123 is formed so that its outer diameter is smallest at the center and gradually increases toward both ends. Figure 4 also shows slight changes in the outer diameter.

[0085] The cross-sectional thickness of such connecting part 123 is formed to be thicker than the cross-sectional thickness of the first cone-shaped part 121 or the cross-sectional thickness of the second cone-shaped part 122, so that when transforming from the expansion mode to the contraction mode, the connecting part 123 applies pressure to the first cone-shaped part 121 and the second cone-shaped part 122, causing them to elastically deform.

[0086] That is, the connecting part 123 has a cross-sectional thickness greater than that of the first cone-shaped part 121 or the second cone-shaped part 122, and has a relatively greater deformation force. Therefore, when the elastically deforming member 120 deforms from the expansion mode to the contraction mode, the connecting part 123 applies pressure to the first cone-shaped part 121 and the second cone-shaped part 122, which have a relatively smaller deformation force, thereby inducing smooth elastic deformation.

[0087] The first cone-shaped part 121 and the second cone-shaped part 122, and the first cone-shaped part 121 and the second cone-shaped part 122, as well as their connection relationship, form an hourglass shape as a whole, although both sides of the hourglass are not necessarily symmetrical.

[0088] The elastically deformable member 120, which is formed in an hourglass shape as a whole, slightly separates the distal and middle phalanges of the finger from the portable device or case, allowing the user to grip the portable device in the shape of a bent or folded finger. Therefore, the portable device accessory 100 having such a structure provides the user with a more comfortable grip than conventional accessories.

[0089] Meanwhile, a first region S1 and a second region S2 are formed as empty spaces inside the first cone-shaped part 121 and the second cone-shaped part 122. Here, the first region S1 refers to the space defined by the first cone-shaped part 121 and the coupling unit 110. The second region S2 refers to the space defined by the second cone-shaped part 122 and the cover unit 130.

[0090] In order for the mobile device accessory 100 to change from the expanded state to the contracted state, the air present inside the accessory 100 must be discharged to the outside. To this end, at least one hole 121d, 122d is formed in each of the first cone-shaped part 121 and the second cone-shaped part 122. The holes 121d, 122d may be formed in the side surfaces 121a, 122a of the first cone-shaped part 121 and the second cone-shaped part 122, or may be formed around the heads 121b, 122b. For example, as shown in the figure, the hole 121d of the first cone-shaped part 121 is formed around the head 121b, and the hole 122d of the second cone-shaped part 122 is formed in the bulging, inclined side surface 122a.

[0091] The first cone-shaped part 121 and the second cone-shaped part 122 do not have folding lines for elastic deformation of the elastically deformable member 120, and the first cone-shaped part 121 and the second cone-shaped part 122 have side surfaces 121a and 122a, respectively, that are formed of convex curved surfaces. Furthermore, the elastically deformable member 120, including the first cone-shaped part 121, the second cone-shaped part 122, the connecting part 123, the proximal part 124, and the distal part 125, is integrally formed by injection molding, and the material of the elastically deformable member 120 may be a silicone material. Therefore, the shape and material characteristics can provide the elastic restoring force of the elastically deformable member 120.

[0092] If the folding lines were processed, the steps would create a rough and uncomfortable grip for the user. However, according to the present invention, the folding lines are not processed, and the convex curved sides 121a, 122a, the elastic deformation member 120 is integrally formed by injection molding, and / or the silicone material allows the user to have a softer grip than before.

[0093] Furthermore, although deterioration in durability and tearing due to repeated use begin to occur from the folding line, as proposed in the present invention, if the folding line is not operated, it is possible to provide an accessory for a portable device that does not suffer from substantial deterioration in durability or tearing even with repeated use.

[0094] In some embodiments of the present invention, to prevent an excessive increase in the size of the mobile device accessory 100, the side surface 121a of the first cone-shaped part 121 and the side surface 122a of the second cone-shaped part 122 may not have an inflection point in the slope of the tangent. If, on the other hand, the side surface 121a of the first cone-shaped part 121 and the side surface 122a of the second cone-shaped part 122 had an inflection point in the slope of the tangent, the outer diameters of the proximal part 124 formed on the lip 121c of the first cone-shaped part 121 and the distal part 125 formed on the lip 122c of the second cone-shaped part 122 would be unnecessarily large, which would increase the size of the cover unit 130. An excessively large size of the mobile device accessory 100 is undesirable in that it causes inconvenience to the user.

[0095] Meanwhile, first cone-shaped part 121 and second cone-shaped part 122 may have anti-interference slit grooves 121e, 122e formed on their inner circumferential surfaces, respectively, for preventing interference with at least one of coupling unit 110 and cover unit 130 in the retracted mode. Such anti-interference slit grooves 121e, 122e minimize interference and frequent friction with coupling unit 110 and cover unit 130 in the retracted mode of mobile device accessory 100, thereby improving durability of the components and enabling a stable retracted mode.

[0096] In the region where the slit grooves 121e and 122e are formed, the cross-sectional thickness of the first cone-shaped part 121 and the cross-sectional thickness of the second cone-shaped part 122 are formed thinner than the surrounding region. Therefore, interference and spatial density between the coupling unit 110 and the cover unit 130 caused by deformation of the first cone-shaped part 121 and the second cone-shaped part 122 in the contraction mode of the elastic deformation member 120 can be minimized.

[0097] Furthermore, the slit grooves 121e, 122e are formed in the shape of a closed curve on the inner circumferential surfaces of the first cone-shaped part 121 and the second cone-shaped part 122. That is, when viewed from the top-bottom direction of the elastic deformation member 120, the slit grooves 121e, 122e are formed in the shape of a closed curve on the inner circumferential surfaces of the first cone-shaped part 121 and the second cone-shaped part 122, respectively, which has the advantage of uniformly accommodating the deformation force in the contraction mode of the elastic deformation member 120 and realizing the contraction mode more smoothly, and of being easy to form on the inner circumferential surfaces of the first cone-shaped part 121 and the second cone-shaped part 122.

[0098] Furthermore, the slit groove 122e is formed in a region that is spaced apart from the cover unit 130 in the expanded mode and moves to a position facing the cover unit 130 when elastically deformed into the contracted mode.

[0099] The proximal part 124 of the elastic deformation member 120 is coupled to the lower mount 113 of the coupling unit 110. The proximal part 124 surrounds a portion of the lower mount 113 in the radial direction of the mobile device accessory 100, and the lower cap 111 of the coupling unit 110 further surrounds the proximal part 124. The lower cap 111, the proximal part 124, and the lower mount 113 may be positioned on concentric circles.

[0100] FIG. 9 is a diagram showing a structure in which the coupling unit of the portable device accessory proposed in the present invention is installed on the proximal part of the elastic deformation member.

[0101] FIG. 11 is an exploded perspective view showing a coupling unit of a mobile device accessory proposed in the present invention.

[0102] 9 and 11, the lower mount 113 will be described first to explain the coupling relationship between the lower cap 111, the proximal part 124, and the lower mount 113. The lower mount 113 is a member that closes one side opening of the elastically deformable member 120, and here, the one side opening refers to the opening O1 surrounded by the lip 121c of the first cone-shaped part 121 or the proximal part 124. The proximal part 124 has a hollow shape, i.e., a shape that includes the opening O1, for disposing the lower mount 113 therein.

[0103] The combined unit 110 may include a bottom cap 111 , a bottom mount 113 and a protective tape 114 .

[0104] The lower cap 111 serves to fix the edge of the lower mount 113 and the edge of the proximal part 124 in close contact with each other. The lower cap 111 is formed in a flat, disk-like shape with a hollow hole 111h formed in the center, and the edge of the proximal part 124 is inserted into and fitted into the hollow hole 111h. As described above, the lower cap 111 has a fixing magnet 115 press-fitted into an annular region RA formed by portions 111a, 111b, and 111c surrounded on three sides by the edge. Here, the hollow hole 111h may have substantially the same configuration as the hollow 110a of the coupling unit 110.

[0105] The lower cap 111 is formed to have an outer diameter larger than that of the lower mount 113, and covers the entire upper surface of the lower mount 113. The entire lower surface of the combined unit 110 in which the lower cap 111 and the lower mount 113 are assembled is finished with protective tape 114, thereby realizing a sealed state in which the lower mount 113 is not exposed to the outside of the mobile device accessory 100.

[0106] The lower mount 113 serves to finish the open area, i.e., the opening 01, of the proximal part 124 of the elastically deformable member 120, whose edge is fitted into the hollow hole 111h. The lower mount 113 also has a first magnet accommodating portion 113c (described later) formed in its center, in which the first magnet 112 is installed. The first magnet 112, together with a second magnet 132 (described later), serves to realize the retracted mode or the extended mode of the mobile device accessory 100.

[0107] The protective tape 114 may be formed in a size and shape substantially the same as or similar to the outer diameter of the coupling unit 110 so as to prevent not only the lower mount 113 but also the fixing magnet 115 from coming off the lower cap 111 and protect the coupling unit 110. Because the outer diameter of the lower cap 111 is the largest among the lower mount 113, the proximal part 124, and the lower cap 111, when the protective tape 114 is formed in the above-mentioned size and shape, it is possible to protect the entire lower mount 113 and one side portion of the lower cap 111.

[0108] The edge of the proximal part 124 is configured to include a fixing wing portion 124a and a coupling guide portion 124b.

[0109] The fixing wing 124a is disposed between the lower cap 111 and the lower mount 113, and allows the elastic deformation member 120 to be stably fixed to the coupling unit 110. The fixing wing 124a is in close contact with the lower surface of the lower cap 111 by means of the close contact fixing portion 113b of the lower mount 113, which will be described later, and provides a stable fixed state of the elastic deformation member 120 to the coupling unit 110.

[0110] A plurality of coupling guide portions 124b are formed on the outer side of the edge, spaced apart from one another along the circumference of the edge, and protrude radially. The coupling guide portions 124b are configured to closely contact a coupling mount portion 113a of the lower mount 113, which will be described later, when the elastically deformable member 120 and the lower mount 113 are coupled together. This facilitates the assembly process of the elastically deformable member 120 and the lower mount 113, and provides a stable, tightly fixed state when the elastically deformable member 120 and the lower mount 113 are coupled together.

[0111] The lower mount 113 is configured to include a coupling mount portion 113a and a closely fixed portion 113b.

[0112] A plurality of coupling mount portions 113a are formed and positioned spaced apart from one another along the circumference of the lower mount 113. The coupling mount portions 113a are portions that form a kind of stepped groove between the closely fitting fixing portions 113b protruding from the outer periphery of the lower mount 113, and receive the coupling guide portion 124aa of the proximal part 124. This facilitates the assembly process of the elastically deformable member 120 and the lower mount 113 when the elastically deformable member 120 and the lower mount 113 are coupled, and provides a stable, closely fitting state when the elastically deformable member 120 and the lower mount 113 are coupled.

[0113] The close contact fixing portion 113b protrudes radially between the coupling mount portions 113a, and allows the fixing wing portion 124ab of the proximal part 124 to be tightly fixed to the lower surface of the lower cap 111. In other words, the close contact fixing portion 113b is configured to provide the greatest fixing force to the edge of the proximal part 124 in the lower mount 113 in order to realize the coupled state between the elastic deformation member 120 and the coupling unit 110.

[0114] The stable connection of the elastically deformable member 120 to the connecting unit 110 by the lower cap 111 and the lower mount 113 can be achieved by connecting structures such as protrusions and grooves, adhesive tapes, and hooks.

[0115] Specifically, the coupling state of the elastic deformation member 120 to the coupling unit 110 formed by the lower cap 111 and the lower mount 113 can be achieved by the locking hook configuration of the lower cap 111 and the lower mount 113 .

[0116] That is, the lower cap 111 has a first locking hook 111d formed on the underside around the central hollow hole 111h, which extends downward and has an end bent inward, and the end of the close-fitting fixing portion 113b of the lower mount 113 has a second locking hook 113ba formed at the end thereof, which is bent upward and then bent outward again, so as to engage with the first locking hook 111d.

[0117] Therefore, due to the engagement of the first locking hook 111d and the second locking hook 113ba, the edge of the proximal part 124 is tightly fitted between the lower surface of the lower cap 111 and the upper surface of the lower mount 113 and stably fixed.

[0118] Meanwhile, the lower mount 113 may include a first magnet receiving portion and a first magnet that help realize the retracted mode of the elastic deformation member 120 .

[0119] Specifically, a first magnet accommodating portion 113c is formed in the center of the lower mount 113, which is in communication with the internal space of the elastic deformation member 120. The first magnet accommodating portion 113c is provided with a first magnet 112 having an edge portion 112a formed on its outer circumferential surface and protruding in the circumferential direction.

[0120] Here, the first magnet 112, together with the second magnet 132 of the second magnet accommodating portion 133c formed on the top mount 133 of the cover unit 130 described later, plays a role in ensuring that the contraction deformation of the first cone-shaped part 121 and the second cone-shaped part 122 is carried out more smoothly in the contraction mode of the elastic deformation member 120.

[0121] The first magnet accommodating portion 113c may be formed in a flat cylindrical shape that passes through the center of the lower mount 113, and may have a stepped protrusion 113d on the inner surface of the upper end of such a cylindrical shape for fixing the first magnet 112.

[0122] The stepped protrusion 113d may extend inward from the inner circumferential surface at the upper end of the first magnet housing portion 113c to secure the first magnet 112. Alternatively, a plurality of stepped protrusions 113d may be formed so as to be spaced apart from each other in the circumferential direction of the first magnet housing portion 113c. Thus, such stepped protrusions 113d can ensure that the first magnet 112 is stably secured to the first magnet housing portion 113c.

[0123] Here, the first magnet 112 has an edge 112a that is fixed in close contact with the stepped protrusion 113d, and an upper surface that is exposed to the first region S1 that is formed by the first cone-shaped part 121 of the elastic deformation member 120.

[0124] Furthermore, first magnet housing portion 113c has a magnet fitting portion 113e formed at its lower end to guide the insertion of first magnet 112 and fix first magnet 112 in place in first magnet housing portion 113c. Therefore, such magnet fitting portion 113e allows first magnet 112 to be easily inserted into first magnet housing portion 113c from the bottom of lower mount 113.

[0125] The structure and shape of magnet fitting portion 113e are not particularly limited as long as it is configured to allow first magnet 112 to be easily inserted into first magnet housing portion 113c, and may be configured, for example, to have an upwardly inclined surface at the end facing the center of lower mount 113 to guide the insertion of first magnet 112, and to fix first magnet 112 in a state where it is placed in first magnet housing portion 113c. Furthermore, magnet fitting portion 113e may have cutouts 113ea formed on both sides in the radial direction of lower mount 113.

[0126] Therefore, cutout portion 113ea provides magnet fitting portion 113e with a structure that allows elastic deformation to occur more easily when first magnet 112 is inserted, making it easier to insert first magnet 112. Furthermore, magnet fitting portion 113e has the advantage that when first magnet 112 is inserted, the inclined surface allows first magnet 112 to be smoothly pressed into magnet fitting portion 113e, thereby simultaneously realizing a placed state and a fixed state for magnet fitting portion 113e, making it easier to attach first magnet 112.

[0127] Next, the cover unit 130 will be described.

[0128] The cover unit 130 may be configured as a single component that is applied to the mobile device accessory 100, or may be configured as an assembly that includes components such as the cover cap 131 and top mount 133 described below.

[0129] FIG. 8 is a diagram showing a structure in which the cover unit of the portable device accessory proposed in the present invention is installed on the distal part of the elastic deformation member.

[0130] FIG. 10 is an exploded perspective view showing a cover unit of a portable device accessory proposed in the present invention.

[0131] 8 and 10 , the cover unit 130 closes the opening 02 formed in the distal part 125 of the elastically deformable member 120. The cover unit 130 is connected to the elastically deformable member 120, and moves away from or towards the coupling unit 110 due to the elastic deformation of the elastically deformable member 120.

[0132] Furthermore, with respect to its position from the portable device or the case as a reference, the distal part 125 of the elastically deformable member 120 has a hollow shape for accommodating the cover unit 130, and the distal part 125 is formed with an edge groove 125c along its edge that accommodates the edge of the cover unit 130. The edge groove 125c of the distal part 125 serves to provide a stable placement state for the cover unit 130 when the cover unit 130 is assembled to the distal part 125.

[0133] The cover unit 130 includes a cover cap 131 , a top mount 133 and a cover film 134 .

[0134] The cover cap 131 is formed into a flat disk shape overall, and is formed to have an outer diameter larger than the distal part 125, and is arranged to cover both the cover film 134 and the distal part 125. An outer edge cover portion 131a and a cap fixing protrusion 131b are formed on the lower surface of the edge of the cover cap 131, respectively.

[0135] The outer edge cover portion 131a is formed with an inclined surface 131aa whose lower surface becomes lower in the radial direction so as to cover the entire upper end of the distal part 125, and is formed with a thickness greater than that of the other portion 131c of the cover cap 131. The material constituting such outer edge cover portion 131a is not particularly limited, and may be made of, for example, a plastic material having greater rigidity than the material constituting the elastic deformation member 120.

[0136] When the mobile device accessory 100 is used in combination with the mobile device 10, the outer edge cover portion 131a is the portion that comes into direct contact with the floor surface when the elastic deformation member 120 is deformed into the extended mode and the mobile device 10 is tilted and placed on the floor. Therefore, by making the outer edge cover portion 131a out of a material that is relatively rigid and durable, such as acrylate resin, ABS resin, or EVA resin, the friction between the mobile device accessory 100 and the floor surface can be minimized, and the extended mode state of the elastic deformation member 120 can be more stably maintained. In addition, the outer edge cover portion 131a can reduce deformation and wear of the cover unit 130 itself.

[0137] The cap fixing protrusion 131b is formed adjacent to the lower surface inclined portion 131aa of the outer edge cover portion 131a and extends downward. The cap fixing protrusion 131b is inserted into the cover cap fixing groove 125a formed on the upper surface of the distal part 125, so that the cover cap 131 is stably placed on the upper part of the distal part 125.

[0138] In addition, the cap fixing protrusions 131b are formed in multiple numbers, with at least two cap fixing protrusions being formed and spaced apart from each other along the circumference of the cover cap 131, and the cover cap fixing grooves 125a are formed at positions corresponding to the positions where the cap fixing protrusions 131b are formed along the circumference of the distal part 125, thereby minimizing the weight of the cover cap 131 and making it easier to connect the cover cap 131 to the distal part 125.

[0139] The top mount 133 is exposed from an open area of ​​the distal part 125 of the elastically deformable member 120. The top mount 133 and the distal part 125 can be connected to each other by an insertion portion 133b of the top mount 133 and a top mount fixing groove 125b of the distal part 125. Here, the insertion portion 133b may have a structure formed by bending the edge of the top mount 133 downward to form a step portion 133a, and then bending the end of the step portion 133a again in the radial direction.

[0140] Meanwhile, the top mount 133 may include a second magnet accommodating portion 133c and a second magnet 132 that help realize the retracted mode of the elastic deformation member 120.

[0141] Specifically, a second magnet accommodating portion 133c that communicates with the internal space of the elastically deformable member 120 is formed in the center of the top mount 133. The second magnet 132 inserted into the second magnet accommodating portion 133c has an edge portion 132a that protrudes in the circumferential direction along the outer circumferential surface between the upper end and the lower end.

[0142] Here, the second magnet 132 serves to ensure that the shrinking deformation of the first cone-shaped part 121 and the second cone-shaped part 122 is carried out more smoothly in the shrinking mode of the elastic deformation member 120 due to the attractive force acting between it and the first magnet 112 of the first magnet accommodating portion 113c formed in the lower mount 113 of the coupling unit 110.

[0143] The second magnet receiving portion 133c may be formed in a flat cylindrical shape that penetrates the center of the top mount 133, and may have a stepped protrusion 133d that extends inward from the inner circumferential surface of the lower end of such a cylindrical shape in order to fix the second magnet 132. The stepped protrusion 133d extends inward from the inner circumferential surface of the lower end of the second magnet receiving portion 133c in order to fix the second magnet 132, and a plurality of stepped protrusions 133d may be formed and positioned spaced apart from each other in the circumferential direction of the second magnet receiving portion 133c.

[0144] Here, the second magnet 132 has an edge 132a that is fixed in close contact with the stepped protrusion 133d, and the lower surface is exposed to the second region S2 formed by the second cone-shaped part 122 of the elastic deformation member 120.

[0145] Furthermore, a magnet fitting portion 133e is formed at the upper end of the second magnet housing portion 133c. The magnet fitting portion 133e has a downwardly inclined surface at the end facing the center of the top mount 133 to guide the insertion of the second magnet 132, and fixes the second magnet 132 in place in the second magnet housing portion 133c. Therefore, such magnet fitting portion 133e makes it possible to easily insert the second magnet 132 into the second magnet housing portion 133c from above the top mount 133.

[0146] The structure and shape of the magnet fitting portion 133e are not particularly limited as long as it is configured to allow the second magnet 132 to be easily inserted into the second magnet storage portion 133c. For example, it may be configured to have a downwardly inclined surface at the end facing the center of the top mount 133 to guide the insertion of the second magnet 132, and to fix the second magnet 132 when placed in the second magnet storage portion 133c.

[0147] Furthermore, the magnet fitting portion 133e may have a cutout 133ea formed therein that extends in the radial direction of the top mount 133. Therefore, the magnet fitting portion 133e has a structure in which elastic deformation occurs more easily when the second magnet 132 is inserted due to the cutout 133ea, making it easier to insert the second magnet 132. Furthermore, the magnet fitting portion 133e has a structure in which the second magnet 132 is inserted in a more easily insertable manner due to the downwardly inclined surface. 2 Since the magnet 132 can be smoothly pushed in and simultaneously placed and fixed to the magnet fitting portion 133e, there is an advantage in that the second magnet 132 can be attached more easily.

[0148] Hereinafter, the transformation of the mobile device accessory from the expanded state to the contracted state will be described with reference to FIGS.

[0149] Fig. 4 is a cross-sectional view of the portable device accessory proposed in the present invention in an expanded state, and Fig. 7 is a cross-sectional view of the portable device accessory proposed in the present invention in a contracted state.

[0150] When the cover unit 130 is pressed toward the mobile device while the mobile device accessory 100 is attached to the mobile device or its case, the mobile device accessory 100 transforms from the extended mode to the retracted mode. Alternatively, when the cover unit 130 and the coupling unit 110 are pressed toward each other, the mobile device accessory 100 transforms from the extended mode to the retracted mode.

[0151] While the portable device accessory 100 is transformed from the expanded mode to the contracted mode by applying pressure, the connecting part 123 elastically deforms the first cone-shaped part 121 and / or the second cone-shaped part 122 by applying pressure to at least one of the head 121b of the first cone-shaped part 121 and the head 122b of the second cone-shaped part 122.

[0152] During the deformation process of the mobile device accessory 100, deformation occurs in the shape of the elastic deformation member 120. In particular, as the head 121b of the first cone-shaped part 121 and the head 122b of the second cone-shaped part 122 are pressed by the connecting part 123, at least one of the side surfaces 121a, 122a of the first cone-shaped part 121 and the second cone-shaped part 122 is elastically deformed so as to bend.

[0153] Here, the connecting part 123 is formed so that its cross-sectional thickness is thicker than the cross-sectional thicknesses of the first cone-shaped part 121 and the second cone-shaped part 122, and is configured to apply pressure to the first cone-shaped part 121 and the second cone-shaped part 122 to elastically deform them when the connecting part 123 is deformed into a contraction mode in which the distance between the connecting unit 110 and the cover unit 130 becomes closer.

[0154] In other words, the elastic deformation member 120 is configured so that the cross-sectional thickness of the connecting part 123 is formed to be even thicker than the cross-sectional thickness of the first cone-shaped part 121 and the second cone-shaped part 122, so that when the elastic deformation member 120 deforms into the contraction mode, a pressure state is generated on the first cone-shaped part 121 and the second cone-shaped part 122, thereby achieving stable elastic deformation of the first cone-shaped part 121 and the second cone-shaped part 122 and easy contraction mode state.

[0155] Specifically, in the expansion mode of the portable device accessory 100, the side 121a of the first cone-shaped part 121 and the side 122a of the second cone-shaped part 122 do not have an inflection point in the slope of the tangent, but in the contraction mode, at least one of the two side surfaces 121a, 122a elastically deforms to have an inflection point 121f, 122f.

[0156] Referring to the drawing, due to the action of an external force, i.e., the force of the user and the attractive force between the first magnet 112 and the second magnet 132, the head 121b of the first cone-shaped part 121 is positioned close to the coupling unit 110, and the side surface 121a of the first cone-shaped part 121 moves away from the coupling unit 110 in the radial direction, until an inflection point 121f occurs and the first cone-shaped part 121 moves closer to the coupling unit 110 again. Also, the second cone-shaped part 122 moves closer to the coupling unit 110 in the radial direction from the head 122b, until an inflection point 122f occurs and the second cone-shaped part 122 moves away from the coupling unit 110 again.

[0157] The inflection points 121f and 122f of the first cone-shaped part 121 and the second cone-shaped part 122 can be considered as points where the sign of the curvature changes from the perspective of the curvature of the curve. For example, in a Cartesian coordinate plane, the first cone-shaped part 121 has a parabolic shape (convex upward) of a quadratic function in which the coefficient of the quadratic term is a negative constant overall in the expansion mode, and in the contraction mode, both side cross sections of the first cone-shaped part each have a parabolic shape (convex downward) of a quadratic function in which the coefficient of the quadratic term is a positive constant. That is, the sign of the curvature of the first cone-shaped part 121 changes to the opposite side when the first cone-shaped part 121 transforms from the expansion mode to the contraction mode. The point where the sign of the curvature changes in this way can be defined as the inflection point 121f. The configuration of the inflection point 121f where the sign of the curvature changes in the first cone-shaped part 121 can be similarly applied to the inflection point 122f of the second cone-shaped part 122.

[0158] On the other hand, in the contraction mode, with the radial direction of the elastic deformation member 120 as the reference, the connecting part 123 overlaps with the inflection point 121f formed on the side of the first cone-shaped part 121 at a relatively close position, and the connecting part 123 overlaps with the inflection point 122f formed on the side of the second cone-shaped part 122 at a relatively distant position.

[0159] Such a configuration of the overlapping position of the inflection point 121f of the first cone-shaped part 121 and the inflection point 122f of the second cone-shaped part 122 in the reduced mode maximizes the space utilization of the components in the reduced mode of the portable device accessory 100, thereby realizing a portable device accessory 100 with a compact structure.

[0160] Furthermore, in the retracted mode of the mobile device accessory 100, the first magnet 112 and the second magnet 132 are maintained at a predetermined distance from each other so that an attractive force acts on them. That is, the first magnet 112 and the second magnet 132 do not maintain a state in which they are in complete contact due to their attractive force, but rather maintain a state in which they are spaced apart by a predetermined distance while an attractive force acts on them. This reduces noise and excessive deformation caused by contact between the first magnet 112 and the second magnet 132, and further improves the user convenience of the mobile device accessory 100 and the soft grip feel.

[0161] Here, the predetermined distance between the first magnet 112 and the second magnet 132 can be achieved by adjusting the length of the connecting part 123, or by adjusting the vertical length of the first magnet storage section 113c or the second magnet storage section 133c.

[0162] The elastically deformed second cone-shaped part 122 is configured to cover the connecting part 123 and the first cone-shaped part 121. Either the first cone-shaped part 121 or the second cone-shaped part 122 may be formed to have a larger edge than the other, but the drawings show that the second cone-shaped part 122 is formed to have a larger edge than the first cone-shaped part 121. When the edge of the second cone-shaped part 122 is larger than the edge of the first cone-shaped part 121, the edge of the distal part 125 is also formed to be larger than the edge of the proximal part 124.

[0163] Because the side surface 121a of the first cone-shaped part 121 and the side surface 122a of the second cone-shaped part 122 elastically deform as described above, in the retracted mode of the mobile device accessory 100, the side surface 121a of the first cone-shaped part 121 and the side surface 122a of the second cone-shaped part 122 overlap with each other, the side surface 121a of the first cone-shaped part 121 and the connecting part 123 also overlap with each other, and the side surface 122a of the second cone-shaped part 122 and the connecting part 123 also overlap with each other, with respect to the radial direction of the elastic deformation member 120. Such overlapping allows the mobile device accessory 100 to change to the retracted mode.

[0164] In the prior art, which has a tapered shape only in one direction, an increase in the outer diameter of the distal end is unavoidable as the expanded length increases. However, the overlapping and covering structure of the first cone-shaped part 121 and the second cone-shaped part 122 proposed in the present invention allows for a reduction in the size of the distal end. To make As a result, the expanded length of the mobile device accessory 100 can be increased without excessively increasing the outer diameters of the cover unit 130 and the distal part 125 of the mobile device accessory 100 .

[0165] The above content is merely an example, and those skilled in the art can make various modifications without departing from the scope and technical idea of ​​the described embodiments. The above embodiments can be realized individually or in any combination. [Industrial Applicability]

[0166] The present invention is applicable to accessories for mobile devices that are attached to a mobile device or a case surrounding the mobile device, and can provide the user with a soft grip and convenience. [Explanation of symbols]

[0167] 100 Mobile Device Accessories 110 Combined Unit 111 Lower cap 112 First Magnet 113 Lower Mount 114 Protective Tape 115 Fixed magnet 120 Elastically deformable member 121 First cone-shaped part 122 Second cone-shaped part 130 Cover unit 131 Cover cap 132 Second Magnet 133 Top Mount 134 Cover Film

Claims

1. a coupling unit formed to be attachable to one surface of a portable device or a case surrounding the portable device; an elastic deformation member connected to the coupling unit; a cover unit connected to the elastic deformation member, the cover unit being adapted to be spaced apart from or spaced apart from the coupling unit by elastic deformation of the elastic deformation member; The elastic deformation member is a first cone-shaped part arranged near the coupling unit and having a curved surface with a bulging side; a second cone-shaped part arranged near the cover unit and having a curved surface with a bulging side; a connecting part that connects the first cone-shaped part and the second cone-shaped part to each other, An accessory for a portable device, wherein the outer diameter of the second cone-shaped part is larger than the outer diameter of the first cone-shaped part.

2. a state in which the coupling unit and the cover unit approach each other due to elastic deformation of the elastic deformation member is defined as a contracted mode; a state in which the coupling unit and the cover unit are moved away from each other due to elastic deformation of the elastic deformation member is defined as an extension mode; When the cone-shaped portion is deformed from the expansion mode to the contraction mode, at least one side surface of the first cone-shaped portion and the second cone-shaped portion is elastically deformed so as to bend, The accessory for a mobile device according to claim 1 , wherein when the first cone-shaped part is transformed from the expanded mode to the contracted mode, an inflection point where the sign of curvature changes occurs on a side surface of the first cone-shaped part and a side surface of the second cone-shaped part.

3. 3. The accessory for a mobile device according to claim 2, wherein an interference prevention slit groove is formed on the inner peripheral surface of each of the first cone-shaped part and the second cone-shaped part for preventing interference with at least one of the coupling unit and the cover unit in the retracted mode.

4. In a region where the slit groove is formed, a thickness of a cross section of the first cone-shaped part and a thickness of a cross section of the second cone-shaped part are formed thinner than a thickness of a surrounding region thereof, the slit groove is formed in a closed curve shape on an inner circumferential surface of the first cone-shaped part and an inner circumferential surface of the second cone-shaped part, The portable device accessory according to claim 3 , wherein the slit groove is formed in a region that is spaced apart from the cover unit in the expanded mode and that moves to a position facing the cover unit when the cover unit is elastically deformed to the contracted mode.

5. The elastic deformation member is 10. The mobile device accessory of claim 1, which is integrally formed by injection molding and made of silicone material.

6. 2. The accessory for a mobile device according to claim 1, wherein the second cone-shaped part is configured to cover the first cone-shaped part when the accessory is transformed from an extended mode in which the distance between the coupling unit and the cover unit is greater to a retracted mode in which the distance between the coupling unit and the cover unit is shorter.

7. the connecting part extends in a direction in which the coupling unit and the cover unit approach or move away from each other, and both ends of the connecting part are connected to the first cone-shaped part and the second cone-shaped part, respectively; 2. The accessory for a mobile device according to claim 1, wherein the cross-sectional thickness of the connecting part is formed thicker than the cross-sectional thickness of the first cone-shaped part or the cross-sectional thickness of the second cone-shaped part, so that the connecting part presses and elastically deforms the first cone-shaped part and the second cone-shaped part when transforming from the expanded mode to the contracted mode.

8. the connecting part overlaps with at least one of a side surface of the first cone-shaped part and a side surface of the second cone-shaped part with respect to a radial direction of the elastic deformation member in a contracted mode in which the coupling unit and the cover unit approach each other; 2. The accessory for a mobile device according to claim 1, wherein in the contracted mode, the connecting part overlaps with the side of the first cone-shaped part at a relatively close position, and the connecting part overlaps with the side of the second cone-shaped part at a relatively far position, based on the radial direction of the elastic deformation member.

9. The internal space of the elastic deformation member is first area, A second region, and It is divided into the third area, the first region is defined as a region surrounded by the first cone-shaped part, the second region is defined as a region surrounded by the second cone-shaped part, and the third region is defined as an internal region of the connecting part, The coupling unit includes a first magnet receiving portion formed facing the first region, The portable device accessory according to claim 1 , wherein the cover unit is provided with a second magnet receiving portion formed facing the second region.

10. 15. The accessory for a mobile device as described in claim 14, wherein when the elastic deformation member is deformed into a contracted mode in which the coupling unit and the cover unit are close to each other, the first magnet provided in the first magnet accommodating portion and the second magnet provided in the second magnet accommodating portion come close to each other within a range in which an attractive force acts, and the first magnet and the second magnet are maintained at a predetermined distance from each other so that an attractive force acts.

11. a distal part of the elastically deformable member having a hollow shape with respect to a position from the portable device or the case as a reference; The cover unit includes: a top mount exposed from an open area of ​​the distal part of the elastically deformable member; an adhesive film covering an upper surface of the top mount; a cover cap formed to have a larger outer diameter than the distal part and disposed to cover both the adhesive film and the distal part; a step portion bent downward at an edge of the top mount, and an insertion portion formed by bending an end of the step portion in a radial direction; The portable device accessory according to claim 1 , wherein a top mount fixing groove into which the insertion portion of the top mount is inserted and fixed is formed on an inner peripheral surface of the distal part.

12. The cover cap has an outer edge cover portion and a cap fixing protrusion formed on the underside of the edge thereof, the outer edge cover portion is formed with an inclined surface that becomes lower in a radial direction so as to cover the entire upper end of the distal part, and is formed with a thickness greater than that of other parts of the cover cap; the cap fixing protrusion protrudes from the inside of the outer edge cover portion toward the distal part with respect to the radial direction of the cover cap; a cover cap fixing groove into which the cap fixing protrusion is inserted to fix the cover cap; The cap fixing protrusions are formed in plurality and spaced apart from one another along the circumference of the cover cap; The portable device accessory according to claim 11 , wherein the cover cap fixing groove is formed at a position corresponding to the position at which the cap fixing protrusion is formed along the circumference of the distal part.

13. The top mount has a second magnet accommodating portion formed at its center that communicates with the internal space of the elastic deformation member, the second magnet inserted into the second magnet accommodating portion has an edge portion that protrudes in a circumferential direction along an outer circumferential surface between an upper end and a lower end, The second magnet housing portion includes a stepped protrusion, the step protrusion extends inward from an inner circumferential surface of a lower end of the second magnet accommodating portion to fix the second magnet; The portable device accessory according to claim 11 , wherein the step protrusions are formed in a plurality of positions spaced apart from one another in the circumferential direction of the second magnet receiving portion.

14. A magnet fitting portion is formed at an upper end of the second magnet accommodating portion, the magnet fitting portion has a downwardly inclined surface at an end portion facing the center of the top mount so as to guide the insertion of the second magnet, and fixes the second magnet in a state in which it is placed in the second magnet accommodating portion; The mobile device accessory according to claim 13 , wherein the magnet fitting portion has cutouts formed on both sides in a radial direction of the top mount.

15. a proximal part of the elastically deformable member having a hollow shape with respect to a position from the portable device or the case as a reference; The coupling unit is a lower mount for completing the open area of ​​the proximal part of the elastically deformable member; a lower cap that secures an edge of the lower mount and an edge of the proximal part in a tight contact state with each other; a protective tape covering the lower surface of the lower mount and the lower cap; The coupling unit is a lower mount for completing the open area of ​​the proximal part of the elastically deformable member; a lower cap that secures an edge of the lower mount and an edge of the proximal part in a tight contact state with each other; The mobile device accessory of claim 1 , further comprising a protective tape covering the lower surface of the lower mount and the lower cap.

16. The proximal part is a fixing wing portion formed along the circumference of the proximal part and disposed between the lower cap and the lower mount so as to fix the elastically deformable member to the coupling unit; The portable device accessory according to claim 15 , further comprising: a plurality of coupling guide portions projecting radially from the fixed wing portion and spaced apart from one another along the circumference of the fixed wing portion.

17. The lower mount is a plurality of coupling mount portions formed along the circumference of the edge at intervals, the coupling mount portions being respectively formed at positions corresponding to the coupling guide portions; The portable device accessory according to claim 16 , further comprising: a contact fixing portion protruding radially between the coupling mount portions and adapted to closely contact and fix the fixing wing portion to the lower surface of the lower cap.

18. The lower cap is The proximal part is formed in a disk shape with a hollow hole formed in the center, and the edge of the proximal part is fitted into the hollow hole and inserted, A first hook is formed on the lower surface, the first hook extending downward and having an end bent inward, The end of the close-contact fixing part is The end of the first hook is bent upward, and the end of the first hook is bent outward again to form a second hook, which is engaged with the first hook. The accessory for a mobile device according to claim 17, wherein the engagement of the first locking hook with the second locking hook causes the edge of the proximal part to be tightly fixed between the lower surface of the lower cap and the upper surface of the lower mount.

19. The lower mount has: a first magnet accommodating portion is formed at the center thereof, the first magnet accommodating portion being in communication with the internal space of the elastically deformable member; The mobile device accessory according to claim 15 , wherein the first magnet inserted into the first magnet receiving portion has an edge portion that protrudes in the circumferential direction along the outer circumferential surface between the upper end and the lower end.

20. The first magnet housing portion includes a stepped protrusion, the step protrusion extends inward from an inner circumferential surface at an upper end of the first magnet accommodating portion to fix the first magnet; The step protrusions are formed in plurality and are spaced apart from one another in the circumferential direction of the first magnet accommodating portion, A magnet fitting portion is formed at a lower end of the first magnet accommodating portion, the magnet fitting portion has an upwardly inclined surface at an end portion facing the center of the lower mount so as to guide the insertion of the first magnet, and fixes the second magnet in a state in which it is placed in the first magnet accommodating portion; The mobile device accessory according to claim 19, wherein the magnet fitting portion has cutouts formed on both sides in a radial direction of the lower mount.

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