Angle adjustment parts

Abstract

To provide a lightweight and easy-to-operate angle adjustment part suitable for a supported object. [Solution] The present invention comprises a base 11 fixed to an article having a support object, a main body 12 supported so as to be tiltable in the left-right direction relative to the base 11, and a buckle 13 supported so as to be tiltable in the front-to-rear direction relative to the main body 12, and when the operating part 25 protrudes from one side of the cover bodies 18, 19, the spur gear 23 of the shaft gear part 24 engages with the internal gear 32 of the annular gear part 29, thereby restricting the tilting of the buckle 13 in the front-to-rear direction, and when the operating part 25 is pressed to the other side, the meshing state between the spur gear 23 of the shaft gear part 24 and the internal gear 32 of the annular gear part 29 is released, allowing the buckle 13 to tilt in the front-to-rear direction.

Description

[Technical Field]

[0001] The present invention relates to an angle adjustment component that can support an object to be supported in a position inclined at a predetermined angle in the front-rear direction so that it can be fixed in multiple stages, and can also support it so that it can be tilted at a predetermined angle in the left-right direction. [Background technology]

[0002] Backpacks have traditionally been widely used for carrying items when mountain climbing, hiking, commuting to work or school, etc. This type of backpack typically has a backpack body with an internal storage space and a pair of left and right shoulder straps attached by sewing or the like to the top and bottom of the backpack body, and the shoulder straps are usually made of cloth or leather (see, for example, Patent Document 1).

[0003] However, with such conventional backpacks, the shoulder straps are attached to the top and bottom of the backpack body, and when the backpack body is worn, the shoulder straps pass under the armpits, which causes problems such as the shoulder straps easily slipping off the shoulders, and the shoulder straps sometimes getting twisted when the backpack body is worn, making it difficult to wear.

[0004] Therefore, the applicant has recently developed a backpack in which, instead of the conventional shoulder straps made of cloth or leather, angle adjustment parts (product number KS-12AT manufactured by Kyoyo Giken Co., Ltd.) are attached to the ends of the shoulder straps, which are bent by folding back a metal wire at the tip so that they fit the shape of the shoulders of the user carrying the backpack. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3199907 Summary of the Invention [Problem to be solved by the invention]

[0006] However, since the conventional angle adjustment parts described above were developed for use in chairs, they had the problem that they were heavy and difficult to improve operability when used as angle adjustment parts for shoulder belts.

[0007] The present invention has been made to solve the above-mentioned problems, and aims to provide a lightweight, easy-to-use angle adjustment part that is suitable for supporting objects such as backpack shoulder belts, which are made by bending a metal wire at the tip. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the present invention provides an angle adjustment component that supports an object to be supported in a position inclined at a predetermined angle in the front-rear direction so as to be fixable in multiple stages and also tiltable at a predetermined angle in the left-right direction, the angle adjustment component comprising: a base that is fixed to an article having the object to be supported; a main body that is supported so as to be tiltable in the left-right direction relative to the base; and a buckle that is supported so as to be tiltable in the front-rear direction relative to the main body, the main body having a shaft-shaped portion that has a shaft gear portion with a spur gear formed in the circumferential direction of the center and an operating portion formed at an end, the shaft gear portion being housed therein and the operating portion being biased to protrude in either the left or right direction. and a cover body that supports the shaft-shaped portion so that the buckle is in a position where it can be moved forward and backward. The buckle comprises an annular gear portion having an internal gear that can mesh with the spur gear of the shaft gear portion of the shaft-shaped portion, and a support portion that is formed so that the supported object can be fixed. When the operating portion protrudes from the one side of the cover body, the spur gear of the shaft gear portion meshes with the internal gear of the annular gear portion, thereby restricting the tilting of the buckle in the forward and backward directions, and when the operating portion is pressed to the other side, the meshing state between the spur gear of the shaft gear portion and the internal gear of the annular gear portion is released, thereby allowing the buckle to tilt in the forward and backward directions.

[0009] In the angle adjustment part of the present invention, it is preferable that the main body has a disk-shaped hook portion protruding toward the base, the base has a convex portion capable of accommodating the hook portion, and a guide portion that is open so that the hook portion can be guided to the convex portion, and the main body is rotatable horizontally and tiltable left and right relative to the base.

[0010] In the angle adjustment part of the present invention, it is preferable that a scale portion is provided on the outer surface of the annular gear portion of the buckle in accordance with the pitch of the internal gear, and that an opening is provided in the cover body of the main body so that the scale portion can be seen.

[0011] In the angle adjustment part of the present invention, the support object is preferably a shoulder belt that is bent by folding back a metal wire at the tip so as to conform to the shape of the shoulder of the user carrying the backpack body. [Effects of the Invention]

[0012] According to the present invention, the metal wire is suitable for supporting objects such as shoulder belts for backpacks, which are bent by folding back the tip end, and various excellent effects can be obtained, such as reducing weight and improving operability. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view showing an angle adjustment component according to an embodiment of the present invention; [Figure 2] 1 is a front view showing an angle adjustment component according to an embodiment of the present invention; [Figure 3] FIG. 2 is a left side view showing an angle adjustment component according to the embodiment of the present invention. [Figure 4] FIG. 2 is a right side view showing the angle adjustment component according to the embodiment of the present invention. [Figure 5] 1 is a plan view showing an angle adjustment component according to an embodiment of the present invention; [Figure 6] FIG. 2 is a bottom view showing the angle adjustment component according to the embodiment of the present invention. [Figure 7] 1 is a side view showing a shaft portion of a buckle and a main body of an angle adjustment component according to an embodiment of the present invention. FIG. [Figure 8] 1 is an exploded perspective view showing a shaft portion of a buckle and a main body of an angle adjustment component according to an embodiment of the present invention. FIG. [Figure 9] 1 is an exploded perspective view showing a buckle and a main body of an angle adjustment component according to an embodiment of the present invention. FIG. [Figure 10] 10A and 10B are cross-sectional views showing the operation of the angle adjustment component according to the embodiment of the present invention. [Figure 11] 10A and 10B are cross-sectional views showing the operation of the angle adjustment component according to the embodiment of the present invention. [Figure 12] 10A and 10B are side views showing the operation of the angle adjustment component according to the embodiment of the present invention. [Figure 13] 10A and 10B are front views showing the operation of the angle adjustment component according to the embodiment of the present invention. [Figure 14] 10A and 10B are plan views showing the operation of the angle adjustment component according to the embodiment of the present invention. [Figure 15] 1 is a perspective view showing a state in which a backpack shoulder strap is supported by an angle adjustment component according to an embodiment of the present invention. FIG. [Figure 16] 1 is a perspective view showing a state in which a shoulder belt supported by an angle adjustment component according to an embodiment of the present invention is attached to a backpack body. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] An angle-adjusting component 10 according to an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the following description will be given of an embodiment in which the support object of the angle-adjusting component 10 is a shoulder belt 2 for a backpack.

[0015] As clearly shown in Figures 15 and 16, the shoulder straps 2 are curved, for example in an arch shape, to fit the shape of the left and right shoulders of the user carrying the backpack body 1, and are configured to be attachable and detachable to the top of the backpack body 1 via angle adjustment parts 10.

[0016] The shoulder belt 2 is formed by folding back a spring-like elastic metal wire 3 at its tip end so that the two metal wires 3 are parallel to one another. The metal wire 3 of the shoulder belt 2 is preferably made by wireforming a stainless steel wire having a diameter of approximately 2.5 to 3.0 mm. The lower end of the shoulder belt 2 is formed with a fixing portion 4 that is bent inward at a right angle. Instead of the metal wire 3, the shoulder belt 2 may be formed from other materials, such as a metal plate having spring-like elasticity.

[0017] 1 to 16, two angle adjustment parts 10 according to the embodiment of the present invention are provided to support a pair of left and right shoulder belts 2, and each of the left and right angle adjustment parts 10 is configured to include a base 11 fixed to the rucksack 1, a main body 12 supported so as to be tiltable in the left-right direction relative to the base 11, and a buckle 13 supported so as to be tiltable in the front-rear direction relative to the main body 12. To achieve lighter weight, it is preferable to use a resin such as polyacetal as the material for the angle adjustment parts 10, but metals such as stainless steel and aluminum alloys can also be used.

[0018] Base 11 is configured with a flat fastener 14 and a protrusion 15 that bulges outward in a dome shape from fastener 14. Screw holes 9 (see FIG. 6) are provided in the four corners of the bottom surface of fastener 14, and fastener 14 is fixed in a predetermined position on the top of backpack body 1 by threading screws (not shown) into each screw hole 9 (see FIG. 16). Base 11 has a guide portion 16 that opens linearly from either the left or right side toward the center. As clearly shown in FIG. 6, the portion of fastener 14 adjacent to guide portion 16 is recessed, which allows for smooth insertion of hook portion 20 into protrusion 15 of base 11 via guide portion 16, as will be described later.

[0019] The main body 12 is configured to include an axial portion 17 extending in the left-right direction, a pair of front and rear cover bodies 18, 19 formed to cover the axial portion 17 from the front-rear direction, and a hook portion 20 provided below the cover bodies 18, 19. The cover bodies 18, 19 are integrated with each other in a state in which a storage space is formed inside by screwing screws (not shown) into screw holes 21, 22 formed at corresponding positions, respectively.

[0020] A shaft gear portion 24, on which spur gears 23 are formed at a 10° to 15° pitch in the circumferential direction, is provided in the center of the shaft-shaped portion 17, and the shaft gear portion 24 is housed inside the cover bodies 18, 19. Both ends of the shaft-shaped portion 17 protrude laterally from the cover bodies 18, 19, one end of which functions as an operating portion 25. As shown in Figures 10 and 11, a compression coil spring 26 is provided around the shaft-shaped portion 17, so that the shaft-shaped portion 17 is attached to the cover bodies 18, 19 with the operating portion 25 biased to either the left or right side from the side of the cover bodies 18, 19. An opening 27 is formed in the upper part of the cover bodies 18, 19 at the center in the left-right direction.

[0021] Hook portion 20 is formed in a disk shape, and a constricted portion 8 is formed between hook portion 20 and the underside of cover bodies 18, 19. Constricted portion 8 has a cylindrical shape that can be inserted into guide portion 16 of base 11, and hook portion 20 is attached to protrusion 15 of base 11 by inserting constricted portion 8 into guide portion 16. This allows main body 12 to rotate horizontally 360° relative to base 11 and tilt approximately 45° in either the left or right direction.

[0022] The buckle 13 is configured to include a buckle body 28 that supports the shoulder belt 2 and an annular gear portion 29 formed below the buckle body 28. The buckle body 28 has a flat plate shape, and support portions 30 that can fasten the shoulder belt 2 are formed on the left and right sides thereof. The support portion 30 is formed in a groove shape, and a cylindrical deep hole portion 31 is formed at its lower end. As a result, the shoulder belt 2 is fastened to the buckle 13 by installing the lower end of the metal wire 3 of the shoulder belt 2 in the support portion 30 and inserting the fastening portion 4 into the deep hole portion 31.

[0023] The annular gear portion 29 is formed in an annular shape, and on its inner surface is formed an internal gear 32 at a pitch of 10° to 15° that can mesh with the spur gear 23 of the shaft gear portion 24 of the shaft-like portion 17. In addition, on the outer circumferential surface of the annular gear portion 29, a scale portion 33 is provided in accordance with the pitch of the internal gear 32, and the scale portion 33 is provided so as to be visible from the outside through the openings 27 of the covers 18 and 19 of the main body 12.

[0024] As shown in Fig. 10, when no force is applied to the operating unit 25 pushing it toward the inside of the cover bodies 18, 19, the biasing force of the compression coil spring 26 causes the operating unit 25 to protrude to one side from the side surface of the cover bodies 18, 19, and the spur gear 23 of the shaft gear unit 24 meshes with the internal gear 32 of the annular gear unit 29, thereby fixing the buckle 13 to the main body 12. On the other hand, as shown in Fig. 11, when the operating unit 25 is pushed toward the inside of the cover bodies 18, 19 against the biasing force of the compression coil spring 26, the meshing state between the spur gear 23 of the shaft gear unit 24 and the internal gear 32 of the annular gear unit 29 is released, and the buckle 13 becomes tiltable in the front-to-rear direction by a predetermined angle (e.g., 0 to 90°) relative to the main body 12. This allows the shoulder belt 2 supported by the buckle 13 to be supported in a position tilted at a predetermined angle in the front-to-rear direction so as to be fixable in multiple stages according to the pitch (e.g., 10 to 15°) of the gears 23, 32.

[0025] When a user carries the backpack 1 equipped with the shoulder straps 2 configured as described above, the curved portions of the left and right shoulder straps 2 are placed over the user's left and right shoulders. At this time, because each shoulder strap 2 is curved, for example in an arch shape, to fit the shape of the user's shoulders, the backpack 1 can be held on the user's shoulders only, and the backpack 1 will not slip off the shoulders. Furthermore, because the shoulder straps 2 do not twist when the backpack is carried, the backpack 1 is easy to carry.

[0026] Furthermore, shoulder belts 2 are provided via angle adjustment components 10 so that they can be rotated a predetermined angle in the front-to-rear direction from a vertical position and can be fixed in multiple positions tilted at a predetermined angle (for example, 0 to 90°), so that shoulder belts 2 fit snugly around the shoulders and the backpack main body 1 can be securely held on the user's shoulders, improving the hold on the user's body and preventing the backpack main body 1 from slipping off. At this time, scale portion 33 is provided visibly on the outer circumferential surface of annular gear portion 29, so that the tilt angle of shoulder belts 2 in the front-to-rear direction can be adjusted while visually checking it.

[0027] Additionally, because the shoulder belt 2 is made of metal wire 3 with spring-like elasticity, the arched portion of the shoulder belt 2 expands to fit the user's body even when the user is wearing multiple layers of clothing. Furthermore, because the arched shape can be easily expanded by applying force to the shoulder belt 2, the shoulder belt 2 can fit the user's body regardless of their physique. Furthermore, by covering the metal wire 3 of the shoulder belt 2 with a cushion cover, the strain on the shoulders when carrying the backpack can be reduced.

[0028] Furthermore, since the shoulder straps 2 are provided so as to be rotatable outward relative to the angle adjustment parts 10, the user can easily remove the backpack body 1 from the body.

[0029] In the above description of the embodiment of the present invention, an example was given in which the support object of the angle adjustment part 10 of the present invention is a shoulder belt 2 for a backpack, but the angle adjustment part 10 of the present invention can also be used for other purposes, such as a camera tripod, a smartphone selfie stick, or a car seat belt.

[0030] Furthermore, although the above-described embodiments of the present invention may be subject to various technically preferable limitations, the technical scope of the present invention is not limited to these aspects unless there is a specific description limiting the present invention. In other words, the components in the above-described embodiments of the present invention can be appropriately replaced with existing components, etc., and various variations, including combinations with other existing components, are possible, and the above-described descriptions of the embodiments of the present invention do not limit the content of the invention described in the claims. [Explanation of symbols]

[0031] 1 Backpack body 2 shoulder straps 10 Angle adjustment parts 11 Pedestal 12 Main Unit 13 Buckle 15 Convex part 16 Information Department 17 Axial part 18,19 Cover body 20 Hook part 23 Spur gear 24-shaft gear section 27 Opening 29 Annular gear 30 Support part 32 Internal gear 33 Scale

Claims

1. An angle adjustment component that supports a support object in a position inclined at a predetermined angle in the front-rear direction so as to be fixable in multiple stages and supports the support object in a position inclined at a predetermined angle in the left-right direction, a base fixed to an article having the support object, a main body supported on the base so as to be tiltable in the left-right direction, and a buckle supported on the main body so as to be tiltable in the front-rear direction, the main body includes a shaft-shaped portion having a shaft gear portion having a spur gear formed in the circumferential direction of a central portion and an operating portion formed at an end portion, and a cover body that houses the shaft gear portion and supports the shaft-shaped portion so that the operating portion protrudes in a state where it is biased to one side in the left-right direction, The buckle includes an annular gear portion having an internal gear that can mesh with a spur gear of the shaft gear portion of the shaft-shaped portion, and a support portion that is formed so as to be able to fix the support object, When the operating part protrudes from one side of the cover body, the spur gear of the shaft gear part meshes with the internal gear of the ring gear part, thereby restricting the tilting of the buckle in the forward and backward directions, and when the operating part is pressed to the other side, the meshing state between the spur gear of the shaft gear part and the internal gear of the ring gear part is released, thereby allowing the buckle to tilt in the forward and backward directions.

2. The main body includes a disk-shaped hook portion that protrudes toward the base, the base includes a protrusion capable of accommodating the hook portion, and a guide portion having an opening so that the hook portion can be guided to the protrusion, The angle adjustment component according to claim 1 , wherein the main body is provided so as to be rotatable in the horizontal direction and tiltable in the left-right direction relative to the base.

3. 2. The angle adjustment part according to claim 1, wherein the outer peripheral surface of the annular gear portion of the buckle is provided with a scale portion corresponding to the pitch of the internal gear, and the cover body of the main body is provided with an opening so that the scale portion can be seen.

4. The angle adjustment part according to any one of claims 1 to 3, wherein the support object is a shoulder belt formed by folding a metal wire at the tip end to fit the shape of the shoulder of the user carrying the backpack body.

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