JP2012131248A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To position a cable to a rod with a simple configuration.SOLUTION: In a positioning structure of a cable 7A connected to a shoulder lever 7 of a vehicle seat, the cable 7A is wired over a seat back 2 and a seat cushion 3, and is wired so as to pass in the height direction through a rear surface of the rod 3A3 for joining mutual rear parts of both side frames 3A1 of the seat cushion 3. A rear edge part 3B1 of a pad 3B installed in the seat cushion 3 is put over a rear surface of the rod 3A3, and a lower side shield 22 of the inner side is formed with a projection 22A projecting to a rear part of the rod 3A3 from the inside surface part of the lower side shield 22. The cable 7A is wired in a state of being positioned by surrounding the four sides by the rear surface of the rod 3A3, the inside surface part of the lower side shield 22, the projection 22A and the rear edge part 3B1 of the pad 3B in a corner part of butting the rear surface of the rod 3A3 and the inside surface part of the lower side shield 22.

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a vehicle seat in which a cable is routed across a seat back and a seat cushion.

  2. Description of the Related Art Conventionally, there is a vehicle seat in which a lever for causing a seat body to perform a walk-in operation is set at a shoulder of a seat back (see Patent Document 1). This lever is connected to a mechanism for performing a walk-in operation of the seat body by a cable. The cable is routed from the connecting portion with the lever to the lower side through the back portion of the seat back, and from there, the cable is hung on the rod disposed at the rear end portion of the seat cushion. The direction is switched to the front side of the seat and routed to the front side of the seat through the bottom of the seat cushion. As a result, the cable is routed so as not to get in the way through a place where the seated occupant cannot see.

JP 2010-35970 A

  However, in the above-described prior art, the cable is simply routed by being hung on the rod, and it is preferable to fix the position of the cable by fixing the position with respect to the rod. The present invention has been devised as a solution to the above problem, and an object of the present invention is to enable positioning of a cable with respect to a rod with a simple configuration.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
1st invention is the vehicle seat by which the cable was routed ranging over the seat back and the seat cushion. The cable is routed so as to pass in the height direction on the rear surface of the rod that joins the rear portions of both side frames of the seat cushion. On the rear surface of the rod, the rear edge portion of the pad constituting the cushion structure of the seat cushion is covered and disposed. A protrusion that protrudes from the inner side surface portion to the rear portion of the rod is formed on one of the side portions of the seat cushion. The cable has four sides surrounded by the rear surface of the rod, the inner side surface of the side portion, the protrusion, and the outer surface of the rear edge of the pad at the corner where the rear surface of the rod and the inner side surface of the side portion where the protrusion is formed meet. It is routed in a positioned state.

  According to the first invention, the cable is positioned with respect to the rod by being surrounded on all sides by the rear surface of the rod, the inner side surface portion of the side portion, the protrusion, and the outer surface of the rear edge portion of the pad. Retained. Therefore, the cable can be positioned with respect to the rod by a simple configuration in which the protrusion is formed on the side portion.

  According to a second aspect of the present invention, in the first aspect described above, an ISOFIX type wire for attaching a child seat is integrally joined to the rod, and the wire has a portion hung on the rear surface of the rod between the protrusion. It functions to narrow the gap and make it difficult for the cable to come off from the position of the corner where the cable is positioned.

  According to the second aspect of the invention, the ISOFIX wire can be used to make it more difficult to come off from the position of the corner where the cable is positioned.

  According to a third invention, in the first or second invention described above, the rear surface portion of the protrusion is formed as a tapered surface that is farther forward from the base side where the protrusion extends toward the front end side.

  According to the third aspect of the invention, since the rear surface portion of the protrusion is a tapered surface inclined in the above direction, the cable can be simply operated by pushing the cable into the rear surface portion of the protrusion from the rear side. Can be inserted into the positioning location.

1 is an external view of a vehicle seat of Example 1. FIG. It is the perspective view which showed the frame | skeleton structure of the vehicle seat. It is the perspective view which looked at the vehicle seat from the back. It is the enlarged view which planarly viewed the principal part shown in FIG. It is the side view which showed the state by which the seat back was fallen down by operation of the shoulder opening lever.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the configuration of the vehicle seat according to the first embodiment will be described with reference to FIGS. As shown in FIG. 1, the vehicle seat of this embodiment includes a seat back 2 in which the seat body 1 is a backrest, a seat cushion 3 that is a seating portion, and a headrest 4 that is a head support. It is prepared for. Each of the seat back 2, the seat cushion 3, and the headrest 4 is provided with cushion pads 2B, 3B, 4A so as to cover the skeleton structure therein, and a cloth cover so as to cover the entire surface. 2C, 3C, and 4B are covered.

  As shown in FIG. 2, the seat back 2 has a reclining device 5 in which the lower end portions of the left and right sides of the back frame 2 </ b> A constituting the skeleton each function as a rotation shaft device capable of stopping rotation. The cushion frame 3 </ b> A constituting the skeleton of the seat cushion 3 is connected to the rear end portions on both the left and right sides. Each of the reclining devices 5 is normally held in a rotation-stopped state in which the backrest angle of the seat back 2 is fixed, and the release arm 5A connected to the operation shaft passed through the center portion is rotated. Thus, the rotation stop state is released.

  The operation of releasing the rotation-stopped state of each reclining device 5 includes a release lever 6 provided on the side of the seat cushion 3 on the entrance / exit door side (outside) and the shoulder portion on the entrance / exit door side (outside) of the seat back 2. It can be performed by operating the shoulder lever 7 provided on the head. With the above configuration, the seat back 2 is normally held in a state in which the backrest angle with respect to the seat cushion 3 is fixed, and the release lever 6 and the shoulder lever 7 are operated to fix the backrest angle. The state is solved. Here, each of the reclining devices 5 is configured such that the operation shafts of the reclining devices 5 are connected to each other by the connecting rod 5B, and the operation of locking / releasing is performed in synchronization. By being released, the other-side rotation stop state is also released simultaneously.

  The release lever 6 is rotatably connected to the outer side portion of the cushion frame 3A, and the release lever 6 is rotatably connected to the outer side portion of the cushion frame 3A by a lifting operation to the rear side. By pushing and rotating the connected operation link 6A, the driven link 6B connecting the operation link 6A and the release arm 5A of the reclining device 5 is pulled downward, and the release arm 5A is rotated in the same direction. Yes. The shoulder opening lever 7 is provided at the shoulder opening on the outer side of the back frame 2A, and is connected to the operation link 6A by a cable 7A. The shoulder lever 7 operates to raise it to the front side of the seat, thereby rotating the operation link 6A via the cable 7A, and the follower link 6B in the same manner as when the release lever 6 is operated. The release arm 5A is rotated downward via the.

  Here, a spring SP that applies an urging force in a direction in which the seat back 2 is always tilted forward and rotated is hooked to a connecting portion of both side portions of the seat back 2 and the seat cushion 3. As a result, the seat back 2 is unfolded forward by the urging force of the spring SP by being released from the fixed state of the backrest angle, and is brought down to the forward leaning position shown in FIG. It is designed to be locked. Here, as shown in FIG. 2, the seat main body 1 is moved into the connecting portion between the seat back 2 and the seat cushion 3 on the inner side of the seat main body 1 by the movement of the seat back 2 from the upright posture to the forward leaning posture. A release mechanism 7B is provided for releasing the slide lock state of the slider device 8 that is slidably connected to the vehicle floor.

  The release mechanism 7B connects the operation link 7B1 rotatably connected to the inner side surface portion of the cushion frame 3A, and the release arm 8A connected to the operation link 7B1 and the lock mechanism portion (not shown) of the slider device 8. Cable 7B2. In the release mechanism 7B, the operation link 7B1 is pushed and kicked by the protruding kick part 2A1 formed integrally with the back frame 2A by the movement in which the seat back 2 is tilted from the upright position to the forward tilt position. Thus, the release arm 8A is rotated via the cable 7B2 to release the slide lock state of the slider device 8. By this releasing operation, the seat main body 1 can be slid to the front side of the vehicle in a compact posture with the seat back 2 tilted forward, and the space for getting on and off the seat on the rear side can be widened. Can be.

  Here, the slider device 8 is configured to include a pair of left and right slide rail structures, and a lock mechanism portion (not shown) provided on the slide rail structure on each side is unlocked by the connecting rod 8B. The operation is coupled so as to be performed in synchronization, and the operation of releasing the slide lock state of the lock mechanism on one side releases the slide lock state on the other side all at once. Note that the slide lock state of the slider device 8 is performed by pulling up a slide lock release lever 8 </ b> C that is connected to a lock mechanism portion (not shown) on each side and extends to the lower front portion of the seat cushion 3. Can also be released.

  By the way, as shown in FIGS. 2 to 3, the cable 7 </ b> A connected to the shoulder lever 7 is guided so as to go downward through the seat back 2, and has passed through the seat back 2 downward. At the rear edge of the previous seat cushion 3, it was bent back toward the front side of the seat, and then passed around the periphery of the seat cushion 3 through the bottom of the seat cushion 3. The previous end is connected to the aforementioned operation link 6A. Specifically, as shown in FIG. 2, the cable 7 </ b> A is inclined downward in the width direction from the outer shoulder portion of the seat back 2 connected to the shoulder lever 7 toward the inner side of the seat back 2. At the edge of the inner side, the cable is bent and routed to the front side of the seat through the rear surface of the rod 3A3 provided at the rear edge of the cushion frame 3A. Then, the cable 7A bent back to the front side of the seat passes through the bottom of the seat cushion 3 and is turned from the inner side to the outer side of the seat cushion 3, and the end portion that has been turned around is turned around. Are connected to the operation link 6A. As described above, the cable 7A is largely routed from the outer side of the seat body 1 via the inner side to be connected, thereby connecting the shoulder lever 7 and the operation link 6A arranged on the same outer side. For this reason, the cable 7A can be routed without being greatly bent.

  However, the cable 7A routed with a sufficient extra length as described above cannot be stabilized unless the positions thereof are fixed to the structure of the seat back 2 or the seat cushion 3. The sagging due to its own weight may cause it to hang down from the seat body 1 or interfere with other equipment of the seat body 1 to cause some large bending locally or cause some trouble. This is not preferable. Therefore, in the configuration of the present embodiment, the portions of the routed cable 7A are attached to the back frame 2A and the cushion frame 3A by using a binding tool such as a band B or a clip (not shown). It is fixed. Further, the portion of the cable 7A that passes through the seat back 2 downward and passes through the rear surface of the rod 3A3 and bends back to the front side of the seat is also positioned and fixed on the rear surface of the rod 3A3 so as not to move. . Hereinafter, a fixing structure for positioning the cable 7A at the rear surface position of the rod 3A3 will be described.

  Here, the cushion frame 3A described above includes a long plate-shaped side frame 3A1 constituting the skeleton of both the left and right side portions, and a front frame 3A2 spanned between the front end portions of both side frames 3A1 and joined together. The rod 3A3 is bridged between the rear end portions of both side frames 3A1 and joined thereto. The rod 3A3 is formed of a circular steel pipe, and ISOFIX type wires (ISOFIX bar 3A4) for attaching child seats are integrally joined to two positions near both ends near both side frames 3A1. Yes. These ISOFIX bars 3A4 are formed in a U-shaped shape, and both legs of the U-shape are bent so as to come into surface contact from the upper surface to the rear surface of the rod 3A3, and are integrated with the outer peripheral surface of the rod 3A3. It is welded and fixed to.

  On the rod 3A3, a rear edge 3B1 of a pad 3B that is set so as to be covered by the upper part of the cushion frame 3A is set by being covered from above (see FIGS. 3 to 4). Specifically, the rear edge portion 3B1 of the pad 3B is covered with the rod 3A3 from above, so that the pad 3B is in a hook-like shape to be covered with the upper surface and the rear surface of the rod 3A3. By being formed and covered by the rod 3A3, the rod 3A3 is set in a state of being in surface contact from the upper surface to the rear surface of the rod 3A3. The rear edge 3B1 of the pad 3B has a width direction that can cover almost the entire area of the rod 3A3 extending in the width direction between the side frames 3A1 from the upper surface side and the rear surface side. It is formed with a size.

  Here, as shown in FIG. 1, the seat cushion 3 described above has a configuration in which the outer portions of the left and right sides of the cushion frame 3 </ b> A are covered from both outer sides by a resin outer shield 10. The inner portions on both sides are covered by the resin inner shield 20 from both inner sides. Each of the inner shields 20 is divided into an upper shield 21 attached to the inner part of the back frame 2A and a lower shield 22 attached to the inner part of the cushion frame 3A. Further, each outer shield 10 is attached to the outer side on both the left and right sides of the cushion frame 3A, and the rear edge extends upward so as to cover the connecting portion between the cushion frame 3A and the back frame 2A. It is formed in an L shape.

  As shown in FIGS. 3 to 4, the lower shield 22 attached to the inner side of the seat body 1 among the inner shield 20 described above has a protrusion 22 </ b> A protruding from the inner side surface portion to the rear portion of the rod 3 </ b> A <b> 3. Is formed. As shown in FIG. 4, the protrusion 22A is disposed and formed at a position where the distance L1 between the front surface thereof and the rear surface of the rod 3A3 is slightly larger than the outer diameter of the cable 7A. Further, the protrusion 22A is formed such that the protruding length L2 is slightly larger than the outer diameter thickness of the cable 7A. Further, with respect to the protrusion 22A, the above-described ISOFIX bar 3A4 is slightly wider than the outer diameter of the cable 7A between the wire portion on the rear surface of the rod 3A3 and the tip of the protrusion 22A. It arrange | positions in the position which forms the clearance gap L3.

  With the above configuration, at the corner G where the inner side surface of the inner lower shield 22 and the rear surface of the rod 3A3 abut, the inner side surface portion of the lower shield 22, the rear surface of the rod 3A3, the front surface of the protrusion 22A, and the ISOFIX bar 3A4 The housing space AC that can enclose the cable 7A and surround the four sides is formed, and the portion of the cable 7A that is passed through the rear surface of the rod 3A3 is inserted into the housing space AC. Thus, the rear edge 3B1 of the pad 3B that covers the rear surface of the rod 3A3 is held in a state in which the four sides are surrounded and positioned in the accommodation space AC.

  Here, the rear surface portion of the protrusion 22A is formed as a tapered surface 22A1 whose surface becomes farther toward the front side from the base side where the protrusion 22A protrudes toward the front end side. Thus, when the cable 7A is inserted into the accommodation space AC, the cable 7A is accommodated while being slid along the tapered surface 22A1 only by pushing the cable 7A into the rear surface portion (tapered surface 22A1) of the protrusion 22A. It can be easily inserted into the space AC.

  Thus, according to the vehicle seat of the present embodiment, the cable 7A is surrounded on all sides by the rear surface of the rod 3A3, the inner side surface portion of the lower shield 22, the protrusion 22A, and the outer surface of the rear edge portion 3B1 of the pad 3B. As a result, it is held in a state of being positioned relative to the rod 3A3. Therefore, the cable 7A can be positioned with respect to the rod 3A3 with a simple configuration in which the protrusion 22A is formed on the lower shield 22 as described above. Also, an ISOFIX type wire (ISOFIX bar 3A4) for attaching a child seat is integrally joined to the rod 3A3, and the wire portion hung on the rear surface of the rod 3A3 of the ISOFIX bar 3A4 narrows the gap L3 between the protrusion 22A. Thus, the positioning effect of the cable 7A can be further enhanced by using the ISOFIX bar 3A4. Further, since the rear surface portion of the protrusion 22A is the above-described tapered surface 22A1, the cable 7A can be easily put into the housing space AC by operating the cable 7A to be pushed into the rear surface portion of the protrusion 22A from the rear side. Can be included.

  As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, in the above-described embodiment, the cable 7A is illustrated as being configured to be fixed at the corner where the rod 3A3 and the lower shield 22 are abutted on the inner side of the vehicle, but the cable 7A is a rod on the outer side of the vehicle. It is good also as a structure fixed to the corner | angular part of 3A3 and the lower shield 22. FIG. When the inner shield 20 is not set, a protrusion is formed on the side frame 3A1 of the cushion frame 3A, and the cable 7A is positioned at a corner where the rod 3A3 and the side frame 3A1 on the vehicle inner side are abutted. It is good also as composition to do. In the above embodiment, the ISOFIX type wire (ISOFIX bar 3A4) provided by being joined to the rod 3A3 is exemplified as one of the structures for fixing the position of the cable 7A. However, the rod is a type without the ISOFIX bar 3A4. However, since the positioning function of the cable 7A is exhibited by the pad 3B, a configuration without the ISOFIX bar 3A4 may be used.

DESCRIPTION OF SYMBOLS 1 Seat body 2 Seat back 2A Back frame 2A1 Kick part 2B Pad 2C Cover 3 Seat cushion 3A Cushion frame 3A1 Side frame 3A2 Front frame 3A3 Rod 3A4 ISOFIX bar (ISOFIX system wire)
3B Pad 3B1 Rear edge 3C Cover 4 Headrest 4A Pad 4B Cover 5 Reclining device 5A Release arm 5B Connecting rod 6 Release lever 6A Operation link 6B Follow link 7 Shoulder lever 7A Cable 7B Release mechanism 7B1 Operation link 7B2 Cable 8 Slider device Arm 8B Connecting rod 8C Slide lock release lever SP Spring B Band AC accommodation space L1 Distance L2 Projection length L3 Gap 10 Outer shield 20 Inner shield 21 Upper shield 22 Lower shield 22A Protrusion 22A1 Tapered surface G Corner

Claims (3)

A vehicle seat in which a cable is routed across a seat back and a seat cushion,
The cable is routed so as to pass in the height direction on the rear surface of the rod that joins the rear portions of both side frames of the seat cushion.
The rear surface of the rod is configured to cover the rear edge of the pad that constitutes the cushion structure of the seat cushion,
One of the side portions of the seat cushion is formed with a protrusion that protrudes from the inner side surface portion to the rear portion of the rod. At the corner where the surface part abuts, the rear surface of the rod, the inner side surface part of the side part, the protrusion, and the outer side surface of the rear edge part of the pad are surrounded and positioned in a four-sided state. The vehicle seat characterized by the above-mentioned. The vehicle seat according to claim 1,
An ISOFIX type wire for child seat mounting is integrally joined to the rod, and the wire is positioned by narrowing the gap between the rod and the protrusion on the rear surface of the rod. A vehicle seat that functions so as not to easily come off from the position of the corner. The vehicle seat according to claim 1 or 2,
The vehicular seat, wherein a rear surface portion of the projection is formed in a tapered surface that is farther forward from the base side where the projection extends toward the front end side.

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