Striker, vehicle seat, and method for manufacturing striker

Abstract

To improve rigidity of a striker.SOLUTION: A striker 1 includes: a U shaped loop part 10 which may engage with a latch device; a base plate 20 having a base surface F1 to which both end parts of the loop part 10 are fixed; and a reinforcement member 30 which reinforces the loop part 10 and the base plate 20. The reinforcement member 30 has: a first plate-like part 31 which is disposed along the base surface F1 and supports the base surface F1; and a second plate-like part 32 which extends from one end of the first plate-like part 31 to the opposite side of the base surface F1 and is fixed to the loop part 10.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a striker, a vehicle seat equipped with a striker, and a method for manufacturing a striker. [Background technology]

[0002] Conventionally, a striker has been known that includes a U-shaped loop portion that can engage with a latch device, a base plate having a base surface to which both ends of the loop portion are fixed, and a reinforcing plate that reinforces the loop portion (see Patent Document 1). In this technology, the reinforcing plate is installed in a direction perpendicular to the base surface, and has a flat portion located between the two rod-shaped portions of the loop portion, and two bent portions that bend along each of the rod-shaped portions. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2007-196721 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, further improvement in the rigidity of the striker is desired.

[0005] Therefore, an object of the present invention is to improve the rigidity of a striker. [Means for solving the problem]

[0006] In order to solve the above problems, the striker of the present invention comprises a U-shaped loop portion that can engage with a latch device, a base plate having a base surface to which both ends of the loop portion are fixed, and a reinforcing member that reinforces the loop portion and the base plate. The reinforcing member has a first plate-shaped portion arranged along the base surface and supporting the base surface, and a second plate-shaped portion extending from one end of the first plate-shaped portion to the side opposite the base surface, the second plate-shaped portion being fixed to the loop portion.

[0007] According to this configuration, the second plate-shaped portion is fixed to the loop portion, and the first plate-shaped portion along the base surface supports the base surface, thereby improving the rigidity of the striker.

[0008] The second plate portion may be disposed inside the loop portion.

[0009] According to this configuration, the loop portion can be reinforced from the inside by the second plate-shaped portion, thereby improving the rigidity of the striker.

[0010] In addition, the base plate may have a first fastening hole for fastening the base plate to another member, the first plate-shaped portion may have a second fastening hole for fastening the first plate-shaped portion together with the base plate to the other member and overlapping with the first fastening hole, and the second plate-shaped portion may be joined to the loop portion by welding.

[0011] According to this configuration, since the first plate-shaped portion is fastened to another member together with the base plate, there is no need to fix the first plate-shaped portion to the base plate by welding or the like, and the manufacturing costs of the striker can be reduced.

[0012] The second plate-shaped portion may be perpendicular to the first plate-shaped portion.

[0013] The first plate-shaped portion may have a wide portion having a width greater than a width of the one end.

[0014] According to this configuration, the contact area between the first plate-shaped portion and the base plate can be increased, thereby improving the rigidity of the base plate.

[0015] In addition, the loop portion may have a first extension portion and a second extension portion extending in a direction away from the base surface, and a connecting portion connecting the first extension portion and the second extension portion, and the second plate-shaped portion may be fixed to the first extension portion and the second extension portion.

[0016] According to this configuration, the rigidity of the loop portion can be improved compared to, for example, a configuration in which the second plate-shaped portion is fixed only to the first extension portion.

[0017] The first extension portion may have a different shape from the second extension portion.

[0018] The loop portion may have a flange portion that extends along the base surface from an end of the first extension portion on the base plate side and is joined to the base surface.

[0019] According to this configuration, the first extension portion can be firmly joined to the base surface.

[0020] A vehicle seat according to the present invention includes the above-described striker and a frame to which the striker is fixed.

[0021] Furthermore, a method for manufacturing a striker according to the present invention is a method for manufacturing a striker comprising: a U-shaped loop portion engageable with a latch device, a base plate having a base surface to which both ends of the loop portion are fixed, and a reinforcing member for reinforcing the loop portion and the base plate, the reinforcing member having a first plate-shaped portion arranged along the base surface and supporting the base surface, and a second plate-shaped portion extending from one end of the first plate-shaped portion to the side opposite the base surface, the second plate-shaped portion being fixed to the loop portion. The method of manufacturing the striker includes a step of fixing the loop portion to the base plate, and a step of fixing the reinforcing member to the loop portion.

[0022] According to this manufacturing method, a striker with high rigidity can be manufactured. Effect of the Invention

[0023] According to the present invention, the rigidity of the striker can be improved.

[0024] Furthermore, by disposing the second plate-shaped portion inside the loop portion, the loop portion can be reinforced from the inside by the second plate-shaped portion, thereby improving the rigidity of the striker.

[0025] Furthermore, by configuring the first plate-shaped portion to be fastened to another member together with the base plate, there is no need to fix the first plate-shaped portion to the base plate by welding or the like, which reduces the manufacturing costs of the striker.

[0026] Furthermore, by configuring the first plate-shaped portion to have a wide portion that is wider than the width of one end from which the second plate-shaped portion extends, the contact area between the first plate-shaped portion and the base plate can be increased, thereby improving the rigidity of the base plate.

[0027] Furthermore, by configuring the second plate-shaped portion to be fixed to the first extension portion and the second extension portion of the loop portion, the rigidity of the loop portion can be improved compared to, for example, a configuration in which the second plate-shaped portion is fixed only to the first extension portion.

[0028] Furthermore, by providing the flange portion joined to the base surface on the first extension portion, the first extension portion can be firmly joined to the base surface. [Brief description of the drawings]

[0029] [Figure 1] 1 is a perspective view showing a vehicle seat equipped with a striker according to a first embodiment. FIG. [Diagram 2] FIG. 2A is a perspective view showing a striker, and FIG. 2B is an exploded perspective view showing the striker. [Diagram 3] FIG. 11 is a perspective view showing a striker according to a second embodiment. [Figure 4]FIG. 11 is a perspective view showing a striker according to a third embodiment. [Diagram 5] FIG. 2 is a perspective view showing a striker according to a first reference example. [Figure 6] FIG. 11 is a perspective view showing a striker according to a second reference example. [Figure 7] FIG. 11 is a perspective view showing a striker according to a third reference example. [Figure 8] FIG. 13 is a perspective view showing a striker according to a fourth reference example. [Figure 9] FIG. 13 is a perspective view showing a striker according to a fifth reference example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0030] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. 1, the striker 1 is fixed to, for example, a side frame S1 constituting a backrest of a frame S of a vehicle seat for an automobile or the like. As one example, a bracket S2 made of sheet metal is welded to the side frame S1, and the striker 1 is fixed to this bracket S2 with a fastening member such as a bolt.

[0031] A latch device (not shown) fixed to the vehicle body can be engaged with the striker 1. The latch device is a mechanism equipped with a latch that can be engaged with the striker 1. When the latch engages or disengages with the striker 1, the side frame S1 is locked or unlocked with respect to the vehicle body.

[0032] 2(a) and (b), the striker 1 includes a U-shaped loop portion 10 engageable with a latch device, a base plate 20 having a base surface F1 to which both ends of the loop portion 10 are fixed, and a reinforcing member 30 that reinforces the loop portion 10 and the base plate 20. In the following description of the configuration of the striker 1, for convenience, up / down, left / right, and front / rear will be indicated by arrows in Fig. 2, but it goes without saying that the striker 1 can be used in any position.

[0033] The loop portion 10 is formed, for example, by bending a rod-shaped member made of metal into a U-shape. The loop portion 10 has a first extension portion 11 and a second extension portion 12 extending in a direction away from the base surface F1, and a connecting portion 13 connecting the first extension portion 11 and the second extension portion 12.

[0034] The first extension portion 11 and the second extension portion 12 are arranged side by side with a gap therebetween in the left-right direction. The lower end of the first extension portion 11 and the lower end of the second extension portion 12 are fixed to the base surface F1 by welding or the like. The connecting portion 13 connects the upper end of the first extension portion 11 and the upper end of the second extension portion 12. The latch of the latch device is capable of engaging with any of the first extension portion 11, the second extension portion 12, and the connecting portion 13.

[0035] The base plate 20 is a plate-like member made of, for example, metal. The base plate 20 has a plurality of first fastening holes H1 for fastening the base plate 20 to the bracket S2 (see FIG. 1). In this embodiment, the number of the first fastening holes H1 is three, but the number of the first fastening holes H1 may be any number as long as it is more than one.

[0036] Two first fastening holes H1 are provided in front of the loop portion 10 and one is provided in the rear of the loop portion 10. The two first fastening holes H1 in front of the loop portion 10 are aligned laterally with a gap between them. The first fastening hole H1 in the rear of the loop portion 10 is located between the two front first fastening holes H1 in the left-right direction.

[0037] The reinforcing member 30 has a first plate-shaped portion 31 arranged along the base surface F1, and a second plate-shaped portion 32 extending upward (the opposite side to the base surface F1) from a rear end 311 of the first plate-shaped portion 31.

[0038] The first plate-shaped portion 31 has two second fastening holes H2 for fastening the first plate-shaped portion 31 together with the base plate 20 to the bracket S2 (see FIG. 1). The two second fastening holes H2 are arranged so as to overlap the first fastening holes H1, respectively. The first plate-shaped portion 31 is fastened together with the base plate 20 to the bracket S2, thereby contacting and supporting the base surface F1.

[0039] The first plate-shaped portion 31 has a wide portion 312 that is wider than the left-right width of the rear end 311. In this embodiment, the area of ​​the first plate-shaped portion 31 other than the rear end 311 forms the wide portion 312. The left-right width of the wide portion 312 gradually increases toward the front. The front end of the wide portion 312 has the largest left-right width. Both left and right ends of the front end of the wide portion 312 are located outside the rear end 311 in the left-right direction.

[0040] The second plate-shaped portion 32 is perpendicular to the first plate-shaped portion 31. The second plate-shaped portion 32 is disposed inside the loop portion 10, and is joined (fixed) to the first extension portion 11 and the second extension portion 12 by welding. The dotted hatched portions in the figure indicate weld marks W. The weld marks W are disposed between the second plate-shaped portion 32 and each of the extension portions 11 and 12, and extend in the vertical direction.

[0041] The second plate-shaped portion 32 has two holes H3 arranged at a distance in the up-down direction. Each hole H3 is disposed in the center of the second plate-shaped portion 32 in the left-right direction.

[0042] Next, a manufacturing method of the striker 1 will be described. As shown in FIG. 2(b), the worker first fixes the loop portion 10 to the base plate 20 by welding or the like (first step). Next, the worker places the first plate-shaped portion 31 on the base surface F1 so that the second fastening holes H2 overlap the first fastening holes H1, and joins the second plate-shaped portion 32 to the extension portions 11 and 12 by welding, thereby fixing the reinforcing member 30 to the loop portion 10 (second step). The order of the first step and the second step may be reversed. That is, the second plate-shaped portion 32 may be welded to the extension portions 11 and 12, and then the loop portion 10 may be welded to the base plate 20. The striker 1 is manufactured in this manner. When the striker 1 is attached to the frame S, the fastening members are passed through the fastening holes H1 and H2, and the base plate 20 is fastened to the bracket S2 together with the second plate-shaped portion 32.

[0043] As described above, the following effects can be obtained in this embodiment. Since the second plate-shaped portion 32 is fixed to the loop portion 10 and the first plate-shaped portion 31 along the base surface F1 supports the base surface F1, the rigidity of the striker 1 can be improved.

[0044] By arranging the second plate-shaped portion 32 inside the loop portion 10, the loop portion 10 can be reinforced from the inside by the second plate-shaped portion 32, so that the rigidity of the striker 1 can be improved.

[0045] Since the first plate-shaped portion 31 is fastened to the bracket S2 together with the base plate 20, there is no need to fix the first plate-shaped portion 31 to the base plate 20 by welding or the like, and the manufacturing costs of the striker 1 can be reduced.

[0046] Since the first plate-shaped portion 31 has the wide portion 312 that is wider than the rear end 311, the contact area between the first plate-shaped portion 31 and the base plate 20 can be increased, improving the rigidity of the base plate 20. Furthermore, since the first plate-shaped portion 31 has the wide portion 312, the distance between the two second fastening holes H2 arranged side by side can be increased, so that the first plate-shaped portion 31 and the base plate 20 can be firmly fixed to the bracket S2.

[0047] Since the second plate-shaped portion 32 is fixed to the first extension portion 11 and the second extension portion 12, the rigidity of the loop portion 10 can be improved compared to, for example, a configuration in which the second plate-shaped portion is fixed only to the first extension portion.

[0048] The present invention is not limited to the first embodiment, and can be used in various forms as exemplified below. In the following description, members having substantially the same structure as those in the first embodiment are given the same reference numerals, and the description thereof will be omitted.

[0049] As shown in Fig. 3, the striker 1A according to the second embodiment has a loop portion 10A and a reinforcing member 30A different from those of the first embodiment. The loop portion 10A is formed by pressing a metal plate. The loop portion 10A has a first extension portion 11A, a second extension portion 12A, and a connecting portion 13A different from those of the first embodiment, and a flange portion 14A not present in the first embodiment. The first extension portion 11A, the second extension portion 12A, the connecting portion 13A, and the flange portion 14A are integrally formed.

[0050] The shape of the first extension portion 11A is different from the shape of the second extension portion 12A. Specifically, the first extension portion 11A is plate-shaped and trapezoidal in shape with the width (length in the front-rear direction) of the upper end being smaller than the width of the lower end. The connecting portion 13A is plate-shaped and trapezoidal in shape with the width (length in the front-rear direction) of the left end on the first extension portion 11A side being larger than the width of the right end on the second extension portion 12A side.

[0051] The second extension portion 12A has a cylindrical outer circumferential surface. More specifically, the second extension portion 12A is formed into a cylindrical shape by press-molding a metal plate so as to be rolled into a cylindrical shape. The cylindrical second extension portion 12A is capable of engaging with a latch device. The lower end of the second extension portion 12A is fixed to the base plate 20 by welding or the like.

[0052] The flange portion 14A extends outward in the left-right direction from a lower end portion (the end portion on the base plate 20 side) of the first extending portion 11A along the base surface F1. The flange portion 14A is joined to the base surface F1 by welding or the like.

[0053] The reinforcing member 30A has a first plate-shaped portion 31A different from that of the first embodiment. The first plate-shaped portion 31A has a constant width in the left and right directions, unlike that of the first embodiment. The second plate-shaped portion 32 is joined by welding or the like to the inner surface in the left and right direction of the plate-shaped first extending portion 11A.

[0054] As described above, according to the second embodiment, the flange portion 14A provided at the lower end portion of the first extension portion 11A is joined to the base surface F1, so that the first extension portion 11A can be firmly joined to the base surface F1.

[0055] As shown in Fig. 4, the striker 1B according to the third embodiment is obtained by partially modifying the structure of the striker 1A according to the second embodiment. Specifically, the striker 1B has a loop portion 10B different from that of the second embodiment.

[0056] The loop portion 10B has a first extension portion 11A and a flange portion 14A that are substantially similar to those of the second embodiment, and has a second extension portion 12B and a connecting portion 13B that are different from those of the second embodiment. The second extension portion 12B and the connecting portion 13B are integrally formed by bending a rod-shaped member made of metal, for example, into an L-shape. The left end of the connecting portion 13B is joined to the first extension portion 11A by welding or the like. The connecting portion 13B or the second extension portion 12B is capable of engaging with a latch device.

[0057] 5 to 8 are diagrams showing a reference example. As shown in Fig. 5, the striker 2 according to the first reference example includes a loop portion 10A substantially similar to that of the second embodiment, a base plate 20 substantially similar to that of the first embodiment, and a reinforcing member 230 different from that of each of the above-mentioned embodiments. The reinforcing member 230 is a rectangular plate-like member, and is disposed inside the loop portion 10A with one end in contact with the base surface F1. Both left and right ends of the reinforcing member 230 are joined to the first extension portion 11A and the second extension portion 12A by welding. The one end of the reinforcing member 230 that contacts the base surface F1 may or may not be fixed to the base surface F1 by welding.

[0058] As shown in Fig. 6, a striker 2A according to the second reference example includes a base plate 20 substantially similar to that of the first embodiment, and a latch engagement member 40 not included in the above-described embodiments. The latch engagement member 40 includes a first plate-shaped portion 31 substantially similar to that of the first embodiment, and a second plate-shaped portion 42 having a slightly different structure from that of the first embodiment. The left and right ends and the rear end of the first plate-shaped portion 31 are each joined to the base plate 20 by welding.

[0059] The second plate-shaped portion 42 is a rectangular plate, and has the two holes H3 described above, as well as a rectangular hole H4 larger than the hole H3. The hole H4 is disposed on the upper portion of the second plate-shaped portion 42, specifically above the two holes H3, and the upper side, left side, and right side are respectively spaced a predetermined distance from the upper end, left end, and right end of the second plate-shaped portion 42. As a result, the left and right sides and the upper portion of the hole H4 of the second plate-shaped portion 42 form the first extension portion 51, the second extension portion 52, and the connecting portion 53 that constitute the loop portion 50. The first extension portion 51, the second extension portion 52, or the connecting portion 53 are capable of engaging with a latch device.

[0060] 7, a striker 2B according to the third reference example includes a base plate 20 substantially similar to that of the first embodiment, and a latch engagement member 40A having a slightly different structure from that of the second reference example. The latch engagement member 40A has a structure obtained by removing the first plate-shaped portion 31 from the latch engagement member 40 of the second reference example. The lower end of the latch engagement member 40A is joined to the base plate 20 by welding.

[0061] 8, a striker 2C according to the fourth reference example is formed of a single plate. The striker 2C has a loop portion 50 substantially similar to that of the second reference example, three legs 61 to 63, and an intermediate portion 64 connecting the loop portion 50 and each of the legs 61 to 63.

[0062] The legs 61-63 are arranged side by side at intervals in the left-right direction. Of the three, the left and right legs 61, 62 each extend downward from an intermediate portion 64 and then extend forward. Of the three, the middle leg 63 extends downward from the intermediate portion 64 and then extends backward. A fastening hole H5 for fastening the striker 2C to the bracket S2 is formed at the tip of each of the legs 61-63.

[0063] 9, a striker 2D according to the fifth reference example includes a loop portion 10 and a base plate 20 that are substantially similar to those of the first embodiment, and a reinforcing member 330 that differs from the embodiments described above. The reinforcing member 330 includes a first portion 331 that extends from the first extension portion 11 to the second extension portion 12, and a second portion 332 that is narrower in width in the left-right direction than the first portion 331.

[0064] The first portion 331 and the second portion 332 are disposed inside the loop portion 10. The second portion 332 extends upward from the left portion of the upper end of the first portion 331, and is separated from the second extending portion 12 and the connecting portion 13. The right edge of the second portion 332 is formed in an arc shape so that the left-right width becomes smaller toward the upper end.

[0065] The first portion 331 is fixed to the first extension portion 11, the second extension portion 12, and the base plate 20 by welding. The second portion 332 is joined to the first extension portion 11. In this fifth reference example, the latch device is capable of engaging with the second extension portion 12 or the connecting portion 13. Therefore, the range (joining range) in which the first extension portion 11 on the side with which the latch device does not engage is reinforced by the reinforcing member 330 is larger than the range in which the second extension portion 12 on the side with which the latch device engages is reinforced by the reinforcing member 330. This makes it possible to further suppress deflection of the striker 2D.

[0066] In each of the embodiments and reference examples described above, the parts fixed by welding may be fixed by adhesive or the like.

[0067] In the first to third embodiments, the first plate-shaped portion may be fixed to the base plate by welding or the like.

[0068] The second plate-shaped portion may be disposed outside the loop portion. Also, the second plate-shaped portion may be fixed to a part of the loop portion, for example, to only one of the two extending portions.

[0069] The striker may be used not only in the backrest of a vehicle seat such as a vehicle seat, but also in the seating portion or legs of the vehicle seat, and may be used as a device for locking an opening and closing part such as the trunk of a vehicle. The vehicle seat may also be a seat of a vessel or an airplane other than a vehicle. In addition, when a latch device is provided in the vehicle seat, the striker may be provided in the vehicle body.

[0070] The elements described in the above-mentioned embodiment and reference examples may be implemented in any combination. [Explanation of symbols]

[0071] 1 Striker 10 Loop section 20 Base Plate 30 Reinforcement member 31 First plate-shaped portion 32 Second plate-shaped portion F1 base surface

Claims

1. a U-shaped loop portion engageable with a latch device; a base plate having a base surface to which both ends of the loop portion are fixed; a reinforcing member that reinforces the loop portion and the base plate, The loop portion is a first extension portion and a second extension portion extending in a direction away from the base surface; a connecting portion connecting the first extension portion and the second extension portion, The reinforcing member is an end surface opposite to the base plate; A first plate-shaped portion disposed along the base surface and supporting the base surface; a second plate-shaped portion extending from one end of the first plate-shaped portion toward a side opposite to the base surface and constituting the end surface, The end surface of the reinforcing member has a smaller dimension in a predetermined direction in which the first extension portion and the second extension portion are aligned than the loop portion, a striker comprising: a first end portion and a second end portion, the first end portion being fixed to the first extension portion and the second extension portion by welding;

2. A striker as described in claim 1, characterized in that the first plate-shaped portion contacts the base surface.

3. A striker as described in claim 1 or claim 2, characterized in that the first extension portion is plate-shaped.

4. A striker as described in claim 3, characterized in that the first extension portion is trapezoidal in shape, with the width of the end farther from the base surface being smaller than the width of the end closer to the base surface.

5. A striker as described in claim 3 or claim 4, characterized in that the connecting portion is plate-shaped.

6. The base plate has a first fastening hole for fastening the base plate to another member, The striker according to any one of claims 1 to 5, characterized in that the first plate-shaped portion has a second fastening hole for fastening the first plate-shaped portion together with the base plate to the other member, the second fastening hole overlapping the first fastening hole.

7. The striker according to any one of claims 1 to 6, wherein the first plate-shaped portion has a wide portion that is wider than the width of the one end.

8. The loop portion is The striker according to any one of claims 3 to 5, further comprising a flange portion extending along the base surface from an end of the first extension portion on the base plate side, the flange portion being joined to the base surface.

9. A striker according to any one of claims 1 to 8; A vehicle seat comprising: a frame to which the striker is fixed.

10. a U-shaped loop portion engageable with a latch device, a base plate having a base surface to which both ends of the loop portion are fixed, and a reinforcing member for reinforcing the loop portion and the base plate, the reinforcing member having an end surface opposite to the base plate, a first plate-shaped portion disposed along the base surface and supporting the base surface, and a second plate-shaped portion extending from one end of the first plate-shaped portion to the opposite side to the base surface and constituting the end surface, The loop portion is a first extension portion and a second extension portion extending in a direction away from the base surface; a connecting portion connecting the first extension portion and the second extension portion, A method for manufacturing a striker, wherein a dimension of the end surface of the reinforcing member in a predetermined direction in which the first extension portion and the second extension portion are aligned is smaller than that of the loop portion, fixing the loop portion to the base plate; a step of positioning the second plate-shaped portion of the reinforcing member inside the loop portion, and fixing each end face in the specified direction of the second plate-shaped portion to the first extension portion and the second extension portion by welding.

Images