JP2007001477A - Clamp structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamp structure capable of improving workability by simple assembling and easily performing disassembling without causing any damage on a wire harness and generating noise. <P>SOLUTION: In the clamping structure, a seat back clamp 10 is mounted to a seat back 51 while the skin insertion parts 13, 14 are inserted into the insertion holes 52, 53 so that the wire harness 40 held by a wire harness holding part 12 is positioned in the seat back 51. The wire harness 40 is interposed between a cushion of the seat back 51 and the back surface of the skin 57 along with the wire harness holding part 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a clamp structure used for routing while holding an electric wire or the like of a wire harness in a seat back.

  As an example of a conventional clamp, a main body part, a vehicle body locking part protruding from the outer surface of the main body part, and a band part are provided, and a through hole with a locking piece protruding on the inner surface of the main body part is provided. (Patent Document 1) is known in which a hooked claw is protruded on the outer surface of the band portion and a thin portion spaced from both ends in the width direction of the band portion is provided.

  FIG. 11 shows an example of a clamp structure for routing a wire harness using the above-mentioned clamp in a seat back that covers a seat frame of a vehicle seat such as an automobile. In the clamp structure of FIG. 11, when arranging the wire harness in the seat back, the band portion 70 is wound around and fixed to the wire harness 90, and then the band portion 70 is inserted into a through-hole (not shown). The locking claw is locked to a locking piece (not shown), and the vehicle body locking portion 71 is fitted into the clamp hole 92 provided in the seat frame 91.

  In the clamp structure of FIG. 11, the wire harness 90 is disposed on the seat frame 91 by a distance L1 (that is, floated), so that it comes into contact with other electrical components and structural components incorporated in the seat. There is a possibility that the outer surface of the wire harness 90 is damaged or abnormal noise is generated.

  Further, in the clamp structure of FIG. 11, the clamp hole 92 must be provided at a predetermined position of the metal seat frame 91, but it is difficult to form the clamp hole 92 in the seat frame 91 by post-processing. When manufacturing the seat frame 91, it is necessary to form the seat frame 91 so as to have the clamp hole 92 in advance, and thus the formation of the clamp hole 92 is troublesome.

  Further, in the clamp structure of FIG. 11, when assembling to the seat frame 91, the vehicle body locking portion 71 must be fitted into the clamp hole 92 of the seat frame 91 using a special tool such as a punch, for example. In addition to the fact that the attachment cannot be performed, if the position of the vehicle body locking portion 71 is not arranged accurately at a predetermined position in the length direction of the wire harness 90, the attachment to the metal seat frame 91 is not possible. Therefore, it is necessary to increase the position accuracy of the vehicle body locking portion 71, and it is troublesome to increase the position accuracy when assembling to the wire harness 90. Therefore, it takes a lot of work time and improves the work efficiency. I can't hope.

  Further, since the vehicle body locking portion 71 cannot be easily detached from the seat frame 91, the clamp structure of FIG. 11 makes the vehicle disassembly work difficult.

JP 2003-180023 A

  The present invention has been made in view of the above-described circumstances, and its purpose is that the wire harness is not damaged, no abnormal noise is generated, workability can be improved by simple assembly, and disassembly is easy. It is in providing the clamp structure which can be performed.

In order to achieve the above-described object, the clamp structure according to the present invention is characterized by the following (1) to (4).
(1) A clamp structure for routing a wire harness in a seat back that covers a seat frame of a vehicle seat,
A wire harness holding portion for holding the wire harness, and a skin insertion portion that is detachably inserted into an insertion hole formed so as to extend along an edge of the opening of the skin of the seat back; Comprising a clamp having
The clamp is attached to the seat back while the skin insertion portion is inserted into the insertion hole of the skin so that the wire harness held by the wire harness holding portion is positioned in the seat back. .
(2) In the clamp structure according to (1), an extension of a portion formed in the clamp so that the skin insertion portion is arranged side by side with the wire harness and held by the wire harness holding portion of the wire harness The direction is parallel to the insertion direction of the skin insertion portion into the insertion hole.
(3) In the clamp structure of the above (1) or (2), the wire harness is sandwiched between the cushion of the seat back and the back surface of the skin together with the wire harness holding portion.
(4) In the clamp structure according to any one of (1) to (3), the clamp further includes a seat frame locking portion locked to the seat frame, and the skin frame insertion is performed by the seat frame locking portion. The movement of the clamp in a direction from the landing portion toward the wire harness holding portion is restricted.

According to the clamp structure of the configuration of (1) above, the insertion hole that extends along the edge of the opening of the skin of the seat back so that the wire harness held by the wire harness holding portion is located in the seat back The clamp is attached to the seat back while the removable skin insertion part is inserted into the seat back. Therefore, there is no need to provide a hole in the seat frame for this clamping structure. That is, in the clamp structure having the above-described configuration (1), the insertion hole is not formed in a metal seat frame but in a seat back skin formed of a flexible material such as natural leather, synthetic leather, and the like that is easy to process. May be formed. Therefore, it is not necessary to use a special tool or the like when assembling the clamp in the seat, it can be easily inserted and the position error can be absorbed, improving workability. Can be made. Further, in the clamp structure having the configuration (1), the skin insertion portion can be easily detached from the skin during disassembly, so that workability during disassembly can be improved.
Further, according to the clamp structure having the configuration of (2) above, the skin insertion portion is arranged side by side with the wire harness on the clamp, and the extending direction of the portion held by the wire harness holding portion of the wire harness is the skin. Since it is parallel to the insertion direction of the insertion portion into the insertion hole, the skin insertion portion of the clamp is on the opening side of the skin of the seat back, and the wire harness is outside the opening portion and in the seat back. Thus, the outer skin insertion portion of the clamp can be inserted into the insertion hole of the outer skin of the seat back. Therefore, it is possible to attach the clamp to the seat back so that the wire harness held by the wire harness holding portion is always located in the seat back.
According to the clamp structure having the configuration of (3) above, the wire harness is sandwiched between the seat back cushion and the back surface of the skin together with the wire harness holding portion, and the cushion presses the wire harness against the back surface side of the skin. The harness is always in contact with any part in the seat back, and is not arranged to float as in the conventional case. Therefore, the wire harness is prevented from being damaged or generating abnormal noise.
According to the clamp structure of the above configuration (4), for example, even when a vehicle occupant sits on the seat and a stress that enlarges the opening of the seat back acts, the seat frame of the clamp attached to the seat back Since the locking portion is caught by the seat frame, it is possible to prevent stress such as tension from being applied to the wire harness.

  According to the present invention, the wire harness is not damaged, no abnormal noise is generated, workability can be improved by simple assembly, and disassembly can be easily performed.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

  FIG. 1 is an external perspective view of an essential part for explaining the assembly of a wire harness, a clamp, and a seat back showing an embodiment of a clamp structure according to the present invention, and FIG. 2 is a seat of the clamp with a wire harness shown in FIG. FIG. 3 is an external perspective view of the seat back to which the clamp with the wire harness of FIG. 1 is assembled, and FIG. 4 is an assembled perspective view of the seat back of FIG. FIG. 5 is a front view of the assembly of the clamp with a wire harness used when assembling the clamp with the wire harness of FIG. 1 to the seat back, and FIG. 6 is the seat back of the assembly of FIG. 7 is an external perspective view of the main part immediately before assembling, and FIG. 7 shows the assembled assembly and seat back shown in FIG. FIG. 8 is an external perspective view showing a state in which the assembly of FIG. 5 is assembled to the seat back, and FIG. 9 is a sectional view taken along the line AA shown in FIG. FIG. 10 is an external perspective view showing a state in which the seat back shown in FIG. 9 is assembled to the seat frame.

  One embodiment of the clamp structure according to the present invention is a seat back 51 having a skin 57 and a cushion 58 (see FIG. 3 and the like) that are put on a seat frame 50 (see FIG. 4 and the like) of a vehicle seat such as an automobile. It is a clamp structure for arranging the wire harness 40 (refer FIG. 5 etc.) inside.

  As shown in FIGS. 1 to 3, for example, the clamp structure includes a pair of wire harness holding portions 12 for holding the wire harness 40 and an edge of the opening 56 of the seat back 51 (in other words, an outer skin 57. A seat back clamp (clamp) having a pair of skin insertion portions 13 and 14 detachably inserted into a pair of insertion holes 52 and 53 formed so as to extend along the edges of the body 11. 10 is provided.

  The wire harness 40 is sandwiched between the cushion 58 of the seat back 51 and the back surface of the skin 57 together with the wire harness holding portion 12. This state is specifically shown in FIG.

  In this clamp structure, the seat back clamp 10 inserts the skin insertion portions 13 and 14 into the insertion holes 52 and 53 of the skin 57 so that the wire harness 40 held by the wire harness holding portion 12 is positioned in the seat back 51. It is attached to the seat back 51 while being inserted into the seat back.

  In the seat back clamp 10, the skin insertion portions 13 and 14 are formed so as to be side by side with the wire harness 40. The extension direction of the portion held by the wire harness holding portion 12 of the wire harness 40 is parallel to the insertion direction of the skin insertion portions 13 and 14 into the insertion holes 52 and 53.

  The seat back clamp 10 further includes a seat frame locking portion 15 that is locked to the seat frame 50. The seat frame locking portion 15 restricts movement of the seat back clamp 10 in the direction from the skin insertion portions 13 and 14 toward the wire harness holding portion 12.

  Details of the clamp structure configured as described above will be described below.

  As shown in FIG. 1, the body 11 of the seat back clamp 10 is formed from a thin plate material made of metal or synthetic resin, and its external dimensions are such that the operator can easily hold it by hand. ing.

  The wire harness holding portion 12 is a plate-like portion that protrudes from both side edges (upper and lower ends of the right end portion of the main body 11 in FIG. 1) of one end portion of the main body 11. After the wire harness 40 is placed on the back surface of the wire harness holding portion 12, the wire harness 40 is connected to the proximal end portion of the wire harness holding portion 12 by, for example, the binding portions 16 and 16 formed by tape winding or the like. From the center to the center. At the tip of each wire harness holding part 12, a retaining part protrudes on both sides as a retaining part for the binding parts 16, 16.

  The skin insertion portions 13, 14 are cantilevered to the main body 11 of the seat back clamp 10 so that the base end portion and the center portion thereof extend in parallel with the base end portion and the center portion of the wire harness holding portion 12. Formed. Specifically, the skin insertion portion 13 disposed above in FIG. 1 protrudes downward in FIG. 1 so as to form a substantially U-shaped gap in the notch 18 at the center of the main body 11. It can be slightly bent and deformed in the thickness direction. On the other hand, the skin insertion portion 14 disposed below in FIG. 1 protrudes downward from the lower end portion of the main body 11 and can be slightly bent and deformed in the thickness direction. Each skin insertion part 13 and 14 has L-shaped hook parts 19 and 20 at their tip parts.

  The seat frame locking portion 15 protrudes in an L shape from the other end of the main body 11 toward the rear in FIG. 1, and is used to assemble the seat back clamp 10 to the seat frame (see FIG. 4). It is done.

  The skin 57 is a flexible member formed by stitching synthetic leather or natural leather as a raw material, and the insertion holes 52 and 53 are, for example, tags indicating a brand name or the like sewn on a sewing edge of clothing or the like. Such annular band members 54 and 55 are defined by the inner peripheral surfaces. The annular band members 54 and 55 of the skin 57 are formed when the skin 57 is manufactured, and are arranged at the edges of the skin 57 so as to protrude into the openings 56 formed on the back surface of the skin 57. In addition, instead of the skin 57, a fabric woven by using synthetic yarn, natural yarn, rubber yarn, etc. as a material may be adopted, but those made of synthetic leather, natural leather, etc. are preferred. It is preferable because it is more durable while having flexibility. Further, when a surface woven fabric is employed instead of the skin 57, the annular belt members 54 and 55 should be formed of synthetic leather, natural leather, rubber, or the like.

  As shown in FIG. 2, the seat back clamp 10 has the skin insertion portions 13, 14 disposed on the back surface of the skin 57 while the wire harness holding portion 12, in which the wire harness 40 is held by the binding portion 16, is disposed on the back surface of the skin 57. By being inserted into the insertion holes 52, 53 of 57, it is assembled to the skin 57.

  At this time, the skin insertion portions 13 and 14 are slightly flexible, and the annular band members 54 and 55 are also flexible, so that the skin insertion portions 13 and 14 are connected to the annular band members 54 and 55. It can be easily inserted into the insertion holes 52 and 53. When the skin insertion portions 13 and 14 are simultaneously inserted into the insertion holes 52 and 53, respectively, the hook portions 19 and 20 are hooked on the ends of the annular belt members 54 and 55, whereby the seat back clamp 10 is attached to the skin 57. It is locked to. Here, since the skin 57 is a flexible member, in the state where the skin insertion portions 13 and 14 of the seat back clamp 10 are inserted into the insertion holes 52 and 53 of the annular belt members 54 and 55, the wire A slight arrangement error of the seat back clamp 10 in the extending direction of the harness 40 can be absorbed.

  As shown in FIG. 3, the seat back 51 to which the seat back clamp 10 is assembled has a cushion 58 inside the outer skin 57, and an opening 56 is formed by the inner edge of the outer skin 57 and the cushion 58. On the inner edge of the skin 57, six pairs of annular belt members 54, 55 are provided at predetermined intervals. More specifically, the annular band members 54 and 55 are two pairs on the upper edge of the skin 57, two pairs on the left edge, and two pairs on the right edge.

  As shown in FIG. 4, the seat frame 50 to which the seat back 51 is assembled is made of metal, and a seat side frame 59 and a backrest side frame 60 are connected via a reclining device 61 including a hinge. Yes.

  The seat side frame 59 is assembled to a floor panel of a vehicle (not shown) through a seat slide unit (not shown) so as to be movable in the front-rear direction and the vertical direction, and the back frame 60 is attached to the reclining device 61. Via the seat side frame 59.

  The seat back 51 is assembled so as to be put on the backrest side frame 60. The backrest side frame 60 has a square-shaped frame inner edge portion 62 to which the seat frame locking portion 15 of the seat back clamp 10 is locked. For example, devices such as an electric headrest device, an electric lumbar support device, an electric storage table device, a rear seat monitoring device, etc. (all not shown) are fixed to the back frame 60. A connector (not shown) that houses an electrical terminal (not shown) that is electrically connected to each device is arranged in the frame inner edge 62.

  Next, a procedure for arranging the wire harness 40 using the seat back clamp 10 will be described with reference to FIGS. 5, 6, 7, and 8.

  First, as shown in FIG. 5, six seat back clamps 10 are prepared, a predetermined portion of the wire harness 40 is held by each wire harness holding portion 12, and then the wire harness 40 and each seat back clamp 10 are used. Then, the U-shaped assembly 30 that matches the opening 56 of the skin 57 is produced.

  Incidentally, the wire harness 40 between the two seat back clamps 10 respectively disposed on both sides of the skin 57 is drawn out toward the central portion to form branch lines 41, 41. A connector 42 that houses an electrical terminal (not shown) that is electrically connected to the branch line 41 is assembled to the distal ends of 41 and 41.

  Next, the part of the wire harness 40 of the assembly 30 is made to enter from the opening 56 and reach the back side of the skin 57, and the skin of the seat back clamp 10 is inserted into the insertion holes 52 and 53 of the annular belt members 54 and 55, respectively. By sequentially inserting the insertion portions 13 and 14, the wire harness 40 held by the wire harness holding portion 12 of the seat back clamp 10 is routed in the seat back 51.

  As shown in FIG. 6, covering members 63 projecting into the opening 56, similar to the annular belt members 54, 55, at positions where the branch lines 41, 41 are drawn out on the left and right side edges of the skin 57. 63 is formed. The covering member 63 has a hook-and-loop fastener 64 such as a magic tape (registered trademark) attached to one end, and by joining the hook-and-loop fastener 64 to the hook-and-loop fastener at the other end, as shown in FIG. The branch line 41 is covered. Instead of the hook-and-loop fastener 64, a double-sided tape or the like may be used.

  As shown in FIG. 8, the wire harness 40 is routed behind the skin 57 by the seat back clamp 10, and the connectors 42, 42 at the distal ends of the branch lines 41, 41 covered by the covering members 63, 63 are opened. The assembly of the assembly 30 to the seat back 51 is completed by making it possible to place it at the center of the portion 56.

  As shown in FIG. 9, the wire harness 40 held by the wire harness holding portion 12 of the seat back clamp 10 in the assembly 30 assembled to the seat back 51 is routed without being exposed from the opening portion 56. It is elastically sandwiched between the cushion 58 of the seat back 51 and the back surface of the skin 57. At this time, the seat frame locking portions 15 of the seat back clamp 10 are respectively arranged toward the center of the opening 56.

  Then, as shown in FIG. 10, the seat back 51 to which the assembly 30 is assembled is assembled to the back frame 60 of the seat frame 50. The seat back 51 is placed on the back frame 60 from above, and the seat frame locking portion 15 of the seat back clamp 10 is locked to the frame inner edge portion 62.

  The connectors 42 and 42 are electrically connected to a connector of a device such as an electric headrest device, an electric lumbar support device, an electric storage table device, a rear seat monitoring device, etc. (all not shown). Connected to.

  Thus, the wire harness 40 is routed in the seat back 51 using the seat back clamp 10.

  As described above, according to one embodiment of the clamp structure according to the present invention, the skin 57 of the seat back 51 so that the wire harness 40 held by the wire harness holding portion 12 is positioned in the seat back 51. The seat back clamp 10 is attached to the seat back 51 while the removable skin insertion portions 13 and 14 are inserted into the insertion holes 52 and 53 extending along the edge of the opening 56. Therefore, it is not necessary to provide a hole in the seat frame 50 for this clamping structure. That is, in the clamp structure of this configuration, the insertion holes 52, 53 are not formed in the metal seat frame 50 but in the skin 57 of the seat back 51 formed of a flexible material such as natural leather, synthetic leather, etc. that is easy to process. May be formed.

  Therefore, when assembling the clamp (seat back clamp 10) in the seat, there is no need to use a special tool or the like unlike the conventional one, and it is possible to easily insert and absorb the position error. Therefore, workability can be improved.

  Moreover, in this clamp structure, since the skin insertion parts 13 and 14 can be easily removed from the skin 57 at the time of disassembly, workability | operativity at the time of disassembly can be improved.

  In addition, according to one embodiment of the clamp structure according to the present invention, the skin insertion portions 13 and 14 are arranged side by side with the wire harness 40 on the seat back clamp 10, and the wire harness holding portion 12 of the wire harness 40 is arranged. The extension direction of the portion held by the seat back is parallel to the insertion direction of the skin insertion portions 13 and 14 into the insertion holes 52 and 53, so that the skin insertion portions 13 and 14 of the seat back clamp 10 are connected to the seat back 51. The skin insertion portions 13 and 14 of the seat back clamp 10 are inserted into the skin 57 of the seat back 51 with the wire harness 40 outside the opening 56 and in the seat back 51. It can be inserted into the holes 52 and 53. Therefore, it is possible to attach the seat back clamp 10 to the seat back 51 so that the wire harness 40 held by the wire harness holding portion 12 is always located in the seat back 51.

  Further, according to one embodiment of the clamp structure according to the present invention, the wire harness 40 is sandwiched between the cushion 58 of the seat back 51 and the back surface of the skin 57 together with the wire harness holding portion 12, and the cushion 58 is connected to the wire harness 40. Is pressed against the back surface side of the outer skin 57, so that the wire harness 40 is always in contact with any part of the seat back 51 and is not floated and arranged as in the prior art. Accordingly, it is possible to prevent the wire harness 40 from being damaged or generating abnormal noise.

  Further, according to one embodiment of the clamp structure according to the present invention, for example, even when a vehicle occupant sits on the seat and a stress that enlarges the opening 56 of the seat back 51 is applied, the seat back 51 is attached. Since the seat frame locking portion 15 of the seat back clamp 10 is hooked on the frame inner edge portion 62 of the seat frame 50, it is possible to prevent the wire harness 40 from being subjected to stress such as tension.

  Moreover, according to one Embodiment of the clamp structure which concerns on this invention, the insertion holes 52 and 53 are the cyclic | annular belt members 54 like a tag which shows the brand name etc. which were sewn on the sewing edge parts, such as clothing, for example. Since the annular belt members 54 and 55 can be formed at the same time when the skin 57 is manufactured, the annular belt members 54 and 55 are easy to manufacture as compared with the case where holes are formed in the seat frame. As a result, productivity can be improved.

  Thus, according to one embodiment of the clamp structure according to the present invention, the wire harness 40 is not damaged, no abnormal noise is generated, workability can be improved by simple assembly, and disassembly is easy. Can be done.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  The insertion hole provided in the skin of the seat back may be a hole formed as a notch in the edge of the skin near the opening instead of the one formed by the annular belt member.

It is a principal part external appearance perspective view for demonstrating the assembly of the wire harness which shows one Embodiment of the clamp structure based on this invention, a clamp, and a seat back. It is a principal part external appearance perspective view which shows the assembly | attachment state to the seat back of the clamp with a wire harness shown by FIG. It is the external appearance perspective view which looked at the seat back where the clamp with a wire harness of FIG. 1 is assembled | attached from diagonally back. It is the external appearance perspective view which looked at the seat frame where the seat back of Drawing 3 is assembled from diagonally back. It is a front view of the assembly of the clamp with a wire harness used when attaching the clamp with a wire harness of FIG. 1 to a seat back. FIG. 6 is an external perspective view of a main part immediately before the assembly of FIG. 5 is assembled to a seat back. FIG. 7 is an external perspective view after assembly of the assembly and the seat back shown in FIG. 6. It is an external appearance perspective view which shows the state which assembled | attached the assembly of FIG. 5 to the seat back. It is sectional drawing which cut | disconnected and looked at the seat back provided with the seat back with an assembly in the AA arrow line shown by FIG. FIG. 10 is an external perspective view showing a state in which the seat back shown in FIG. 9 is assembled to the seat frame. It is a side view of an example of the conventional clamp structure.

Explanation of symbols

10 Seat back clamp (clamp)
DESCRIPTION OF SYMBOLS 11 Main body 12 Wire harness holding part 13,14 Skin insertion part 15 Seat frame latching part 40 Wire harness 50 Seat frame 51 Seat back 52,53 Insertion hole 56 Opening part 57 Skin 58 Cushion 60 Seat frame

Claims (4)

A clamp structure for routing a wire harness in a seat back that covers a seat frame of a vehicle seat,
A wire harness holding portion for holding the wire harness, and a skin insertion portion that is detachably inserted into an insertion hole formed so as to extend along an edge of the opening of the skin of the seat back; Comprising a clamp having
The clamp is attached to the seat back while the skin insertion portion is inserted into the insertion hole of the skin so that the wire harness held by the wire harness holding portion is positioned in the seat back. Clamp structure characterized by   The skin insertion portion is formed in the clamp so as to be side by side with the wire harness, and the extension direction of the portion held by the wire harness holding portion of the wire harness is the insertion hole of the skin insertion portion The clamp structure according to claim 1, wherein the clamp structure is parallel to the insertion direction.   The clamp structure according to claim 1 or 2, wherein the wire harness is sandwiched between a cushion of the seat back and a back surface of the skin together with the wire harness holding portion.   The clamp further includes a seat frame locking portion that is locked to the seat frame, and movement of the clamp in a direction from the skin insertion portion toward the wire harness holding portion is regulated by the seat frame locking portion. The clamp structure as described in any one of Claims 1-3 characterized by the above-mentioned.

Images