JP4332069B2 - Vehicle seat - Google Patents

Description

  The present invention includes a seat cushion that is disposed substantially horizontally and supports the occupant's buttocks, and a seat back that stands up from the rear portion of the seat cushion and supports the back of the occupant. The seat cushion is attached to the first frame on the first cushion. The seat back is related to a vehicle seat configured to support a first cushion member via a receiving member and the second frame to support the second cushion member via a second cushion receiving member.

The following Patent Documents 1 to 3 disclose that a vehicle seat reclining mechanism and an operation member such as an operation lever are connected by a Bowden wire and an operation of the operation member is transmitted to the reclining mechanism via the Bowden wire. Further, Patent Document 4 below discloses that a vehicle seat slide mechanism and an operation lever are connected by a Bowden wire and the operation of the operation lever is transmitted to the slide mechanism via the Bowden wire.
JP-A-6-32159 JP 2000-43625 A JP 2002-51865 A JP-A-6-262969

  By the way, since the Bowden wire which transmits operation of an operation lever to a reclining mechanism or a slide mechanism is exposed to the exterior of a sheet, what was indicated in the above-mentioned patent documents 1-4 becomes visible, and the Bowden wire becomes visible. In addition to lowering, the exposed Bowden wire may interfere with other members and be damaged.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to make an operation cable for operating a seat-equipped device invisible and to improve the beauty and to prevent the operation cable from being damaged.

In order to achieve the above object, according to the first aspect of the present invention, a seat cushion that is disposed substantially horizontally and supports the occupant's buttocks, and a rear portion of the seat cushion that stands up and supports the occupant's back. A seat back, wherein the seat cushion is configured to support the first cushion member via the first cushion receiving member on the first frame, and the seat back is configured to support the second cushion via the second cushion receiving member on the second frame. In a vehicle seat configured to support a member, at least a part of the first frame is configured by connecting a plurality of pipe members, and an occupant is seated on the seat at an outer end portion of the part of the pipe members. An operation member that can be manually operated in a posture is arranged so as to engage with the end surface of the outer end portion and close the opening of the end surface, and to support the operation member in a rotatable manner Wherein provided in the outer end part of the pipe, with at least a portion of the operating cable having one end connected to the said seat equipped device is built into the pipe material of said portion, the other end of the operating cable A vehicle seat connected to the operation member is proposed.

According to the invention described in claim 2, in addition to the configuration of claim 1, the operation cable includes an inner cable that connects between the seat equipment and the operation member, and the inner cable is slid inside. An outer tube that is movably inserted, and a stay that supports one end of the outer tube on the side of the operation member is provided inside the part of the pipe material so as to be separated from the operation member. vehicle wherein the sheet is Ru been proposed.

  The front leg 22 and the front frame 23 of the embodiment correspond to the pipe material of the present invention, and the first and second lock mechanisms 55 and 56 of the embodiment correspond to the seat equipment of the present invention. The first and second knobs 57 and 62 correspond to the operation member of the present invention, and the first and second Bowden wires 59 and 63 of the embodiment correspond to the operation cable of the present invention.

According to the configuration of the first aspect, at least a part of the first frame of the seat cushion is configured by coupling the pipe material, and at least one of the operation cables that connect the operation member provided on the first frame and the seat equipment. Since the portion is built in the pipe material, the cable can be covered and hidden in an invisible manner to improve the aesthetic appearance, and damage to the cable due to contact with other members can be prevented . Occupant seated in once again over bets can operate the operating member in a comfortable position.

  Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

  1 to 10 show an embodiment of the present invention. FIG. 1 is a plan view of a front seat of an automobile, FIG. 2 is a view taken in the direction of the arrow 2 in FIG. 1, and FIG. FIG. 4 is a disassembled perspective view of the driver's seat, FIG. 5 is an enlarged view of the main part of FIG. 4, FIG. 6 is a view taken in the direction of arrow 6 in FIG. 7 is an enlarged sectional view taken along line 8-8 in FIG. 3, FIG. 9 is an enlarged sectional view taken along line 9-9 in FIG. 3, and FIG. 10 is an enlarged sectional view taken along line 10-10 in FIG. .

  As shown in FIGS. 1 to 5, the front seat of the automobile is composed of a driver seat Sd located behind the steering wheel 12 provided on the right side of the dashboard 11 and a passenger seat Sp placed side by side on the left side. Composed. The driver's seat Sd is provided with a seat cushion 13 that is arranged substantially horizontally and supports the driver's buttocks, and a seat back 14 that stands up reclining from the rear end of the seat cushion 13. The headrest portion 14a is integrally formed. Left and right sliders 17 and 17 are slidably fitted to left and right guide rails 16 and 16 laid on the floor panel 15 in the front-rear direction. The left and right sliders 17 and 17 are front connection members 18 made of pipe material. The pair of left and right triangular base members 20, 20 are integrally fixed to the front connection member 18 and the rear connection member 19.

  The first frame 21 constituting the skeleton of the seat cushion 13 includes left and right front legs 22, 22 standing from the front connecting member 18, and a front frame 23 connecting the upper ends of the front legs 22, 22 and extending in the left-right direction. The left and right side frames 24, 24 extending rearward from the left and right ends of the front frame 23, and the left and right brackets connected to the rear ends of the side frames 24, 24 and supported by the upper ends of the base members 20, 20. 25, and a rear frame 26 that connects the left and right brackets 25, 25 and extends in the left-right direction.

  The second frame 27 constituting the skeleton of the seat back 14 includes left and right brackets 28, 28 pivotally supported by the left and right brackets 25, 25 of the first frame 21, and left and right brackets 28, 28. Left and right side frames 29, 29 standing up, a lower frame 30, a center frame 31 and an upper frame 32 extending in the left-right direction by connecting the lower, middle and upper portions of the left and right side frames 29, 29, and an upper portion The headrest frame 33 is configured to connect both ends of the frame 32.

  The left and right side surfaces and the rear surface of the first frame 21 are covered with a first shell cover 34 formed integrally with a synthetic resin. The rear surface of the second frame 27 is covered with a second shell cover 35 that is integrally formed of synthetic resin.

  The upper surface of the first frame 21 and the front surface of the second frame 27 are covered with an elastic cloth 36 composed of a stretchable net, and the upper surface of the elastic cloth 36 covering the upper surface of the first frame 21 is made of rubber. A first cushion receiving member 38 made of synthetic resin is overlapped via the first spring 37 and the front surface of the elastic cloth 36 covering the front surface of the second frame 27 is made of synthetic resin via a second spring 39 made of rubber. The second cushion receiving member 40 is overlaid. The rear end of the first cushion receiving member 38 and the lower end of the second cushion receiving member 40 are connected to each other via a rubber connecting member 41 so as to be rotatable.

  Four divided first cushion members 42A, 42B, 42C, and 42C that support the driver's buttocks are adhered to the upper surface of the first cushion receiving member 38, and the back portion of the driver and the front surface of the second cushion receiving member 40 Four divided second cushion members 43A, 43B, 43C, and 43D that support the head are bonded.

  As shown in FIG. 8, the front end of the first cushion receiving member 38 is provided with a connecting portion 38 a having a circular cross section with a part of the lower surface open, and this connecting portion 38 a is located above the front frame 23 of the first frame 21. The front end of the first cushion receiving member 38 is fixed to the front end of the first frame 21.

  As shown in FIGS. 4, 5 and 8, the first spring 37 is composed of a rubber plate cut into a T-shape, and is fixed to a fixing member 51 attached to a tip that is bifurcated and extends in the left-right direction. 51 is fixed to the left and right brackets 25, 25 of the first frame 21 by two bolts 52, 52, respectively, and a mounting hole 37 a formed at the front end extending forward is provided on the lower surface of the first cushion receiving member 38. It is fixed by engaging with a hooked projection 38b.

  Accordingly, the weight of the driver seated on the driver seat Sd is changed from the first cushion members 42A to 42C of the seat cushion 13 to the front frame 23 and the left and right of the first frame 21 via the first cushion receiving member 38 and the first spring 37. The seating comfort is enhanced by the expansion and contraction of the first spring 37.

  As shown in FIGS. 3, 4 and 8 to 10, the second spring 39 formed of a rubber plate includes a main body portion 39 a extending in the vertical direction and a pair of upper branches extending in the left-right direction from the upper end of the main body portion 39 a. Portions 39b, 39b and a pair of lower branch portions 39c, 39c extending in the left-right direction from the lower end of the main body portion 39a. The roots of the upper branch portions 39b, 39b and the roots of the lower branch portions 39c, 39c Are formed with triangular openings 39d and 39e.

  The fixing member 53 made of synthetic resin includes a groove 53a formed on the outer periphery and two protruding portions 53b and 53b protruding from one end surface, and the tip of the upper branching portion 39b of the second spring 39 is the fixing member. The protrusions 53 b and 53 b of the fixing member 53 penetrate the net-like elastic cloth 36 while being fitted and locked in the groove 53 a of 53. On the other hand, two locking claws 35a, 35a projecting from the front surface of the second shell cover 35 are formed into two locking holes 29a formed in the side frame 29 made of a flat pipe material of the second frame 27, In this state, the two bolts 54, 54 penetrating the protrusions 53b, 53b of the fixing member 53 pass through the centers of the locking claws 35a, 35a and the locking holes 29a, 29a, and the second Screw into the shell cover 35. With this structure, the pair of upper branch portions 39b and 39b of the second shell cover 35, the second frame 27, the elastic cloth 36, and the second spring 39 are integrally coupled.

  The pair of lower branch portions 39c, 39c of the second spring 39 are also fixed in the same structure as the pair of upper branch portions 39b, 39b described above.

  Further, locking projections 40a, 40b having a substantially triangular hook are provided on the rear surface of the second cushion receiving member 40, and the upper opening 39d of the second spring 39 is fitted to the upper locking projection 40a. The second spring 39 is fixed to the second cushion receiving member 40 by fitting the lower opening 39e of the second spring 39 into the lower locking projection 40b.

  A locking claw 35b projecting from the front surface of the second shell cover 35 penetrates the locking hole 32a formed in the upper frame 32 made of a flat pipe material of the second frame 27 and the elastic cloth 36, and the second cushion. It engages with a locking hole 40 c formed in the receiving member 40. Similarly, the locking claws 35 c, 35 c protruding from the front surface of the second shell cover 35 are formed in the center frame 31 made of a flat pipe material of the second frame 27, the elastic holes 36 and 31 a. And engages with locking holes 40d and 40d formed in the second cushion receiving member 40. With this structure, the second shell cover 35, the second frame 27, the elastic cloth 36, and the second cushion receiving member 40 are integrally coupled.

  As described above, the first cushion receiving member 38 on the side of the seat cushion 13 and the second cushion receiving member 40 on the side of the seat back 14, which are rotatably connected to each other by the flexible connecting member 41, The front end of the first cushion receiving member 38 is rotatably supported by the front frame 23 of the first frame 21, and the second cushion receiving member 40 is attached to the second frame 27 at the upper two places and the lower two places. Since the second frame 39 is supported by the second frame 27 via the second spring 39 fixed to the second frame 27 and the elastic cloth 36 whose periphery is fixed to the second frame 27, the first and second cushion receiving members 38, 40 are arranged in the left-right direction. The first and second springs 37 and 39 are not only extended to be able to move in the vertical and forward / backward directions while preventing the swinging of the first and second springs 37 and 39. The vibration promptly attenuated in the elastic cloth 36 can reduce the fatigue of the occupant.

  As shown in FIGS. 3 to 7, in order to adjust the driver's seat Sd to a predetermined front-rear position, the left slider 17 is locked to the left guide rail 16 so as not to move and unlocked so as to be movable. One lock mechanism 55 is provided. In addition, a second locking mechanism 56 that locks and unlocks the right bracket 28 of the second frame 27 is provided on the right bracket 25 of the first frame 21 in order to adjust the reclining angle of the seat back 14 with respect to the seat cushion 13.

The left end of the front frame 23 of the first frame 21 and the first knob 57 is rotatably pivoted via a pivot pin 58, the first knob 57 and a first locking mechanism 55 is first Bowden wires 59 is connected. As shown in FIG. 7, the first knob 57 is disposed so as to engage with the end face of the left end of the front frame 23 and close the opening of the end face. The first Bowden wire 59 includes an outer tube 59a and an inner cable 59b. One end of the outer tube 59a is supported by a stay 60 provided inside the front frame 23, and the other end is a first lock mechanism. The operation of the first knob 57 is transmitted to the first lock mechanism 55 by an inner cable 59b supported by a stay 61 provided on the inner wall 55 and sliding inside the outer tube 59a.

  Most of the first Bowden wire 59 is disposed inside the front frame 23, the left front leg 22 and the front connecting member 18 which are all formed of a pipe member, except for a part on the first lock mechanism 55 side. Therefore, it is not only visually hidden from the outside and improved in appearance, but also can be prevented from being damaged by interference with other members.

  A second knob 62 is pivotally supported at the right end of the front frame 23 of the first frame 21 via a fulcrum pin (not shown), and the second knob 62 and the second lock mechanism 56 are connected to the second Bowden wire. 63 is connected. The second Bowden wire 63 is composed of an outer tube and an inner cable. One end of the outer tube is supported by a stay (not shown) provided inside the front frame 23, and the other end is a second lock mechanism. The operation of the second knob 62 is transmitted to the second lock mechanism 56 by an inner cable that is supported by a stay (not shown) provided in 56 and slides inside the outer tube.

  The second bowden wire 63, except for a part on the second lock mechanism 56 side, most of the front frame 23 is composed of a pipe member or a hollow member, the right front leg 22, the front connecting member 18 and the right side. Since it is arranged inside the base member 20, it can be hidden from the outside so as to be invisible and improve the aesthetics, and can be prevented from being damaged by interference with other members.

  In particular, since the front legs 22 of the first frame 21 are slightly curved in an arc shape and are connected to the front connecting member 18 and the front frame 23 at an obtuse angle, the first and second housings accommodated in these members are used. 2 Bowden wires 59 and 63 are prevented from being bent suddenly at the connecting portion between the front legs 22 and 22 and the front connecting member 18 and the connecting portion between the front legs 22 and 22 and the front frame 23. The second lock mechanisms 55 and 56 can be operated smoothly. In addition, since the first and second knobs 57 and 62 are disposed at the left and right ends of the front frame 23 on which the front end of the first cushion receiving member 38 of the seat cushion 13 is supported, the passenger seated on the driver seat Sd remains as it is. It becomes possible to easily operate the first and second knobs 57 and 62 in the posture, and the operability is greatly improved.

  Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.

  For example, the driver seat Sd has been described in the embodiment, but the present invention can also be applied to a passenger seat Sp and a rear seat.

Top view of a car front seat 2 direction view of FIG. 3 direction view of FIG. 2 (with the cushion member removed) Exploded perspective view of driver's seat 4 is an enlarged view of the main part of FIG. 6 direction arrow view of FIG. Sectional view along line 7-7 in FIG. FIG. 8 is an enlarged sectional view taken along line 8-8. 9-9 enlarged cross-sectional view of FIG. Fig. 3 is an enlarged sectional view taken along line 10-10 of Fig. 3.

13 Seat cushion 14 Seat back 21 First frame 22 Front leg (pipe material)
23 Front frame (pipe material)
27 2nd frame 38 1st cushion receiving member 40 2nd cushion receiving members 42A-42C 1st cushion members 43A-43D 2nd cushion member 55 1st lock mechanism (seat equipment)
56 Second locking mechanism (equipment with seat)
57 First knob (operating member)
58 fulcrum pin 59 1st Bowden wire (operation cable)
59a outer tube
59b inner cable
60 stay 62 2nd knob (operation member)
63 2nd Bowden wire (operation cable)

Claims (2)

A seat cushion (13) that is disposed substantially horizontally and supports the occupant's buttocks, and a seat back (14) that stands up from the rear of the seat cushion (13) and supports the back of the occupant, and the seat cushion (13) Is configured to support the first cushion member (42A to 42C) via the first cushion receiving member (38) on the first frame (21), and the seat back (14) is second to the second frame (27). In the vehicle seat configured to support the second cushion member (43A to 43D) via the cushion receiving member (40),
The first frame (21) is configured by joining a plurality of pipe members (22, 23) at least partially,
An operation member (57, 62) that can be manually operated in a posture in which an occupant is seated on the seat is engaged with an end surface of the outer end portion at the outer end portion of some pipe members (23). A fulcrum pin (58) that is disposed so as to close the opening and rotatably supports the operation member (57, 62) is provided at the outer end of the part of the pipe material (23),
At least a part of the operation cable (59, 63 ) having one end connected to the seat equipment (55, 56) is built in the partial pipe material (23), and the operation cable (59, 63) The vehicle seat, wherein the other end is connected to the operation member (57, 62) . The operation cable (59, 63) includes an inner cable (59b) that connects between the seat equipment (55, 56) and the operation member (57, 62), and slides inside the inner cable (59b). A stay that supports one end of the outer tube (59a) on the side of the operation member (57, 62) is formed inside the pipe member (23). (60), characterized in that it is spaced apart from the operating member (57 and 62), sheet for a vehicle according to claim 1.

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