JP5384250B2 - Cable member routing structure - Google Patents

Description

  The present invention relates to a cable member wiring structure, and more particularly, to a cable member wiring structure inside a seat back provided with a headrest that can be moved up and down via a pair of left and right stays.

  Conventionally, various electrical components (for example, lumbar support motor, air bag unit, lumbar support switch, seat heater unit, etc.) are assembled inside the seat back, and these functions are activated to improve the satisfaction of seated passengers. Vehicle seats that can be raised are known. Here, Patent Document 1 below discloses a technique in which a wire harness that supplies power and signals to these various electrical components is routed inside the seat back. Thereby, since a wire harness is not exposed to the exterior of a seat back, a wire harness can be arranged with good appearance.

JP 2007-55539 A

  However, in the above-described conventional technology, for example, when the wire harness is routed along the width direction of the seat back, when the headrest is raised and lowered with respect to the seat back, the tip (lower end) of the headrest stay is the wire harness. It sometimes interfered with.

  The present invention is intended to solve such a problem. The purpose of the present invention is to provide a cable in which the stay of the headrest is routed along the width direction of the seat back even when the headrest is raised and lowered with respect to the seat back. It is providing the wiring structure which can prevent interfering with a member.

The present invention is for achieving the above object, and is configured as follows.
The invention according to claim 1 is a cable member routing structure in a seat back provided with a headrest that is assembled to be movable up and down via a pair of left and right stays, and the cable member is arranged along the width direction of the seat back. when to be laid, the height position of the wiring, what height be adjusted in position, which is set at the intersection of the stay, both stays on the rear side of the seat back headrest relative to the seatback The first cable member is arranged in a substantially letter shape or a substantially reverse letter shape between the first operation knob assembled at a substantially central position of the seat and the reclining member of the seat back. When the operation knob 1 is operated, the reclining member is unlocked via the cable member .
According to this configuration, it is possible to prevent the left and right stays of the headrest from interfering with the cable member (in the embodiment, the first operation cable 52) regardless of the height position of the headrest relative to the seat back. . Therefore, it is possible to reliably prevent catching caused by the left and right stays of the headrest. Further, according to this configuration, even when the cable member is routed between the substantially center position of both stays on the back side of the seat back and the reclining member, the cable member can be routed along a smooth route.

The invention according to claim 2 is the cable member wiring structure according to claim 1, wherein the second operation knob is assembled to the shoulder opening of the seat back where the reclining member is provided. A different cable member is routed along the seatback height direction between the reclining member side, and when the second operation knob is operated, the reclining member is unlocked via the different cable member. It is the structure characterized by being performed .
According to this configuration , the reclining member can be unlocked even from the shoulder of the seat back. Therefore, the convenience of the passenger can be improved.

FIG. 1 is an overall perspective view of a seat frame of a driver's seat to which a cable arrangement structure according to an embodiment of the present invention is applied. FIG. 2 is a front view of the back frame in the assembled state of FIG.

  Hereinafter, the form for implementing this invention is demonstrated using FIGS. In the following description, the driver's seat 1 will be described as an example of the vehicle seat. Moreover, in each figure mentioned above, in order to show the internal structure of the driver's seat 1 in an easy-to-understand manner, the cushion structure and the cover structure are omitted, and only the internal frame structure is shown. In the following description, “up”, “down”, “front”, “back”, “left”, and “right” refer to the directions of “up”, “down”, “front”, “rear”, “left”, and “right” described in the above-described figures. The direction of up, down, front, back, left and right is shown.

  First, with reference to FIGS. 1-2, schematic structure of the driver's seat 1 based on the Example of this invention is demonstrated. When the driver's seat 1 switches to the retracted state in which the seat back 30 is tilted forward with respect to the seat cushion 20, the driver's seat 1 switches the seat cushion 20 to the retracted state by sliding the seat cushion 20 backward, thereby This is a type of sheet that can lower the height position of the back surface. Therefore, the driver's seat 1 mainly includes a base frame 10, a seat cushion 20, and a seat back 30. Below, the detailed structure of these structural members 10, 20, and 30 is demonstrated separately.

  First, the base frame 10 will be described. The base frame 10 is a member formed in a rectangular shape so as to form the base of the driver's seat 1. The base frame 10 is directly fixed to the floor side of the vehicle floor F. Of course, it may be fixed via a known slide mechanism without being fixed directly. Further, on the front side of the base frame 10, a lever 12 formed in a substantially U shape is pivoted along the width direction.

  A front side of a cushion frame 22 of a seat cushion 20 to be described later is fixed to the lever 12. Guide grooves 14 and 14 for guiding guide pins 24 and 24 formed at left and right rear ends of a cushion frame 22 of a seat cushion 20 to be described later are formed on the left and right side surfaces of the base frame 10, respectively. Yes.

  Next, the seat cushion 20 will be described. The seat cushion 20 includes a cushion frame 22 that forms the contour, a cushion member (not shown) that wraps the cushion frame 22, and a cover member (not shown) that covers the cushion member.

  Among these constituent members, the cushion frame 22 will be described in detail. The cushion frame 22 is a member formed in a rectangular shape so as to form the contour of the seat cushion 20. The front side of the cushion frame 22 is fixed to the lever 12 of the base frame 10 as described above.

  Further, as described above, the guide pins 24, 24 are formed on the left and right sides of the rear side of the cushion frame 22, respectively. Both guide pins 24 are guided in both guide grooves 14 of the base frame 10, respectively. Thereby, the seat cushion 20 can be slid backward with respect to the base frame 10.

  Next, the seat back 30 will be described. Similarly to the seat cushion 20 described above, the seat back 30 also has a back frame 32 that defines its outline, a cushion member (not shown) that wraps the back frame 32, and a cover member (not shown) that covers the cushion member. It consists of and.

  Of these components, the back frame 32 will be described in detail. The back frame 32 has a rectangular shape (lower frame 32a, left side frame 32b, This is a member formed in a rectangular shape including an upper frame 32c and a right side frame 32d.

  Holders 34, 34 are assembled to the upper frame 32c on the left and right, respectively. These holders 34 and 34 have a structure into which the supports 60 and 60 can be respectively inserted from above. The holders 34 and 34 are set such that when the supports 60 and 60 are inserted, the tip ends of the inserted supports 60 and 60 protrude from the lower ends of the holders 34 and 34.

  Hereinafter, the projecting parts are referred to as “projecting parts 60a, 60a”. When both supports 60 are inserted into both holders 34, both inserted supports 60 are configured to be locked to both holders 34, respectively. Further, both the supports 60 that are inserted have a structure in which the left and right stays 72, 72 of the headrest 70 can be inserted from above.

  The headrest 70 is provided with a known height adjustment mechanism (not shown) so that the height position of the headrest 70 relative to the seat back 30 can be adjusted. Thereby, the height position of the headrest 70 can be adjusted so as to suit the occupant's physique. This description corresponds to “a headrest assembled so as to be movable up and down via a pair of left and right stays” described in the claims.

  On the other hand, upper arms 36 and 36 for assembling the back frame 32 to the base frame 10 are respectively assembled to the lower ends of the left and right side frames 32b and 32d.

  At this time, a pair of left and right reclinings are provided at the lower ends of the left and right side frames 32b and 32d so that the back frame 32 can be tilted forward with respect to both the upper arms 36 (that is, the base frame 10 to which the both upper arms 36 are assembled). Both upper arms 36 are assembled through the member R, respectively. As a result, the seat back 30 can be tilted forward so as to overlap the base frame 10, and the seat back 30 can be held at a desired inclined position when seated on the seat cushion 20.

  A bracket 38 is assembled between the upper and lower frames 32a and 32c so as to bridge the substantial center in the width direction. A first operation knob 40 is assembled on the back side of the bracket 38. A second operation knob 42 is assembled to the upper part of the right side frame 32d (shoulder on the outer side of the back frame 32). Both knobs 40 and 42 are connected to the reclining member R via an operation cable 50.

  Here, the operation cable 50 will be described in detail. The operation cable 50 includes a first operation cable 52, a second operation cable 54, and a third operation cable 56. These three operation cables 52, 54, and 56 are connected to the outer cable (the first outer cable 52a, the second outer cable 54a, and the third outer cable 56a) and the inside of the outer cables 52a, 54a, and 56a. It has a double structure composed of insertable inner cables (first inner cable 52b, second inner cable 54b, and third inner cable 56b).

  One end of the first outer cable 52a is hooked to the bracket 38, and the other end is fixed to one end of the third outer cable 56a. On the other hand, one end of the first inner cable 52b is hooked to the first operation knob 40, and the other end is hooked to one end of the third inner cable 56b.

  One end of the second outer cable 54a is hooked near the outer shoulder of the back frame 32, and the other end is fixed to one end of the third outer cable 56a. On the other hand, one end of the second inner cable 54b is hooked to the second operation knob 42, and the other end is hooked to one end of the third inner cable 56b.

  Also, as described above, one end of the third outer cable 56a is hooked to the other end of the first outer cable 52a and the other end of the second outer cable 54a, and the other end is connected to the right side frame 32d. It is latched in the vicinity of the reclining member R. On the other hand, as described above, one end of the third inner cable 54b is hooked to the other end of the first inner cable 52b and the other end of the second inner cable 54b, and the other end is connected to the right side frame 32d. The reclining member R is latched.

  Next, the routing route of each operation cable 52, 54, 56 described above will be described. First, the routing route of the first operation cable 52 will be described. In this description, the description will be made with one end side (the first operation knob 40 side) as a base point. The same applies to the remaining second operation cable 54 and third operation cable 56.

  The first operation cable 52 is routed from one end side (first operation knob 40 side) to the lower frame 32a. Therefore, the first operation cable 52 is bent along the lower frame 32a and routed to the left side frame 32b. When reaching the left side frame 32b, the first operation cable 52 is bent along the left side frame 32b and routed to a predetermined height position.

  This predetermined height position is a height position that intersects (crosses) the protruding portions 60a, 60a of the left and right supports 60, 60. This description is described in the claims “When the cable member is routed along the width direction of the seat back, the height position of the routing is adjusted to which height the headrest is located with respect to the seat back. Is set at a position intersecting with the stay.

  When the predetermined height position is reached, the first operation cable 52 is bent so as to be parallel to the upper frame 32c and routed to the right side frame 32d. When reaching the right side frame 32d, the first operation cable 52 is bent along the right side frame 32d and routed downward to one end side of the third operation cable 56.

  The first operation cable 52 is wired in this way. When it is arranged in this way, as is apparent from FIG. 2, the first operation cable 52 has a substantially inverted character shape. This description is described in the scope of the claims, “The first operation knob assembled at a substantially central position of both stays on the back side of the seat back and the reclining member of the seat back are substantially letter-shaped. Or, the first cable member is arranged in a substantially reverse character shape ”.

  Next, the routing route of the second operation cable 54 will be described. The second operation cable 54 is routed from one end side (second operation knob 42 side) downward to one end side of the third operation cable 56 along the right side frame 32d. The second operation cable 54 is wired in this way.

  Finally, the routing route of the third operation cable 56 will be described. The third operation cable 56 is reclining member R from one end side (the other end side of the first operation cable 52 and the other end side of the second operation cable 54) downward along the right side frame 32d. Has been routed. The third operation cable 56 is wired in this way. The operation cables 52, 54, and 56 described above are appropriately hooked on the frames 32a, 32b, and 32d by hooks or bands (none of which are not shown) so as to be fixed by the above-described routing route. Has been.

  Next, an operation for switching the above-described driver's seat 1 from the seatable state to the retracted state will be described. First, the occupant releases the slide lock (not shown) of the seat cushion 20 and performs an operation of sliding the seat cushion 20 backward with respect to the base frame 10. Next, the occupant operates the first operation knob 40 in the slid state. Then, since the tension acts on the first inner cable 52b and the third inner cable 56b, the reclining member R is unlocked.

  Thus, the seat back 30 is tilted forward so as to overlap the base frame 10 by a spiral spring (not shown) inside the reclining member R. In this way, the driver's seat 1 can be switched to the retracted state. Further, when switching in this way, the seat cushion 20 does not exist below the forward-backed seat back 30, so that the height position of the back surface of the seat back 30 can be lowered. Therefore, a wide interior space can be secured. In addition, what is necessary is just to perform operation which returns the driver's seat 1 to a seatable state in reverse to the operation mentioned above.

  In the above description, even if the second operation knob 42 is operated instead of the first operation knob 40, the second inner cable 54b and the third inner cable 56b are connected as in the above description. Since the tension acts, the reclining member R is unlocked, so that the driver's seat 1 can be switched to the retracted state.

  The driver's seat 1 according to the embodiment of the present invention is configured as described above. According to this configuration, when the first operation cable 52 is routed along the width direction of the seat back 30, the height position of the routing crosses the protruding portions 60a, 60a of the left and right supports 60, 60. It is set to be the height position. Therefore, it is possible to prevent the left and right stays 72, 72 of the headrest 70 from interfering with the first operation cable 52 regardless of the height position of the headrest 70 with respect to the seat back 30. Therefore, the catch caused by the left and right stays 72, 72 of the headrest 70 can be reliably prevented.

  Moreover, according to this structure, the 1st operation cable 52 is wired so that it may become a substantially reverse character shape. Therefore, even when the first operation cable 52 is routed between the substantially central position of the both stays 72 on the back side of the seat back 30 and the reclining member R, the first operation cable 52 can be routed along a smooth route.

  Further, according to this configuration, the second operation knob 40 connected to the reclining member R via the second operation cable 54 and the third operation cable 56 is provided on the right shoulder of the seat back 30. ing. Therefore, the reclining member R can be unlocked even from the right shoulder of the seat back 30. Therefore, the convenience of the passenger can be improved.

The contents described above are only related to one embodiment of the present invention, and do not mean that the present invention is limited to the above contents.
In the embodiment, the driver's seat 1 has been described as an example of the vehicle seat. However, the present invention is not limited to this. For example, a passenger seat or a rear seat may be used.

  Moreover, in the Example, the 1st operation cable 52 demonstrated the example wired by the substantially reverse character shape. However, the present invention is not limited to this. For example, it may be arranged in an approximate letter shape or an approximate spiral shape.

  Moreover, in the Example, the 1st operation cable 52 demonstrated as an example the structure wired so that it might cross | intersect the protrusion parts 60a and 60a of the left and right supports 60 and 60, respectively. However, the present invention is not limited to this, and the first operation cable 52 may be routed so as to intersect with the left and right holders 34 and 34, respectively.

  Moreover, in the Example, the operation cable comprised from the outer cable and the inner cable was demonstrated to the example as an example of a cable member. However, it is not limited to this and may be a wire harness.

30 seat back 40 first operation knob 42 second operation knob 52 first operation cable 54 second operation cable 56 third operation cable 70 headrest 72 stay R reclining member

Claims (2)

A cable member routing structure inside a seat back provided with a headrest that is assembled to be movable up and down via a pair of left and right stays,
When routing the cable member along the width direction of the seat back, the height position of the routing is set to a position that intersects the stay regardless of the height position of the headrest relative to the seat back. and,
Between the first operation knob assembled at a substantially central position of both stays on the back side of the seat back and the reclining member of the seat back, the first cable member is formed in a substantially letter shape or a substantially reverse letter shape. Is routed,
A cable member routing structure, wherein when the first operation knob is operated, the reclining member is unlocked via the cable member. The cable member routing structure according to claim 1,
Different cable members are routed along the height direction of the seat back between the second operation knob assembled to the shoulder opening of the seat back where the reclining member is provided and the reclining member side. And
A cable member routing structure, wherein when the second operation knob is operated, the reclining member is unlocked via a different cable member .

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