JP2009247554A - Seat apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a seat cushion to support a sitter excellently regardless of a physique of a crew. <P>SOLUTION: The seat apparatus 10 adjusts a position of the seat cushion 16 in a back and forth direction and adjusts a position in the back and forth direction of a tilt support part 46. Thus, regardless of a physique of the crew, a lower end of a pelvis of the crew is placed near a rear end of the tilt support part 46 and the tilt support part 46 excellently supports forward movement of a buttocks part of the crew. Moreover, the seat apparatus is linked to adjustment of the position in the back and forth direction of the seat cushion 16 to adjust the length in the back and forth direction of a front part of the seat cushion 16 and the position of the front end of the seat cushion 16 in the back and forth direction is fixed. Thus, regardless of the build of the crew, a back of the knee of the crew is placed near the front side at the front end of the seat cushion 16, and a front support part 48 and the tilt support part 46 excellently support a thigh part of the crew. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a seat device in which a position in a front-rear direction of a seat cushion can be adjusted.

  Some seat devices adjust the height of the front end of the seat cushion in conjunction with the adjustment of the position of the seat cushion in the front-rear direction (see, for example, Patent Document 1).

Here, in such a seat apparatus, it is preferable that the seat cushion can favorably support the seated person regardless of the size of the seated person.
Japanese Patent Laid-Open No. 3-115528

  In view of the above facts, an object of the present invention is to provide a seat device that can satisfactorily support a seated person regardless of the size of the seated cushion.

  The seat device according to claim 1, a position adjusting unit that adjusts a longitudinal position of the seat cushion, a length adjusting unit that adjusts a longitudinal length of the seat cushion, the position adjusting unit, and the length adjustment. Interlocking means for interlocking with the means.

  The seat device according to claim 2 is the seat device according to claim 1, wherein the interlocking unit is configured to position the front end of the seat cushion in the front-rear direction when the position adjusting unit and the length adjusting unit are interlocked. It is characterized by not changing.

  According to a third aspect of the present invention, in the seat device according to the first or second aspect, the interlocking unit enables the position adjusting unit and the length adjusting unit to be non-interlocked. It is a feature.

  In the seat device according to claim 1, the position adjusting means adjusts the longitudinal position of the seat cushion, the length adjusting means adjusts the longitudinal length of the seat cushion, and the interlocking means is the length adjusting means. And position adjusting means are interlocked. For this reason, a seat cushion can support a seated person favorably irrespective of a seated person's physique.

  In the seat device according to the second aspect, when the interlocking unit interlocks the position adjusting unit and the length adjusting unit, the front-rear direction position of the front end of the seat cushion is made constant. For this reason, a seat cushion can support a seated person more favorably irrespective of a seated person's physique.

  In the seat device according to the third aspect, the interlocking means enables the position adjusting means and the length adjusting means to be non-interlocked. For this reason, a seat cushion can support a seated person more favorably irrespective of a seated person's physique.

  1A to 1C show a plan view of a main part of a sheet apparatus 10 according to an embodiment of the present invention as viewed from above, and FIGS. 2 and 3 show a sheet. The device 10 is shown in a side view as seen from the left. Furthermore, FIG. 6 shows an exploded perspective view of the main part of the seat device 10 as viewed from the front diagonal left. In the drawings, the front of the seat device 10 is indicated by an arrow FR, the right side of the seat device 10 is indicated by an arrow RH, and the upper portion of the seat device 10 is indicated by an arrow UP.

  The seat device 10 according to the present embodiment is provided in a vehicle interior of the vehicle, and the seat device 10 is a driver's seat with the front side facing the front side of the vehicle. An occupant 12 (see FIG. 4) who is a driver as a seated person can sit on the seat device 10.

  The seat device 10 is provided with a seat back 14 on the upper side, and the seat back 14 is erected substantially vertically so that the occupant 12 can be supported from the rear side.

  The seat device 10 is provided with a seat cushion 16 on the lower side and the front side of the seat back 14, and the seat cushion 16 is disposed substantially horizontally so that the occupant 12 can be supported from the lower side.

  A long plate-like first seat side frame 18 as a support member is disposed on both sides of the seat cushion 16 in the left-right direction, and the first seat side frame 18 is fixed in the vehicle interior. The first seat side frame 18 extends in the front-rear direction, and the lower ends of the seat backs 14 are supported at the rear ends of the pair of first seat side frames 18. A predetermined number (two in the present embodiment) of rectangular parallelepiped nuts 58 as support portions constituting the moving means are fixed to the first seat side frame 18 on the surface of the seat cushion 16 side. The nuts 58 are separated from each other in the front-rear direction.

  On both sides of the seat cushion 16 in the left-right direction, on the seat cushion 16 side of the first seat side frame 18, a long plate-like second seat side frame 20 as a position adjusting means is disposed, and the second seat side frame 20 is extended | stretched to the front-back direction.

  The second seat side frame 20 is formed with a predetermined number (two in the present embodiment) of a long, substantially rectangular slide hole 60 as a supported portion constituting the moving means, and the predetermined number of slide holes. 60 is extended | stretched in the front-back direction, respectively, and is mutually spaced apart in the front-back direction. On the seat cushion 16 side of the second seat side frame 20, a predetermined number (two in this embodiment) of arrangement plates 62 having a U-shaped cross section as an arrangement portion constituting the moving means are arranged and moved. A bolt 64 as a fixing portion constituting the means is passed through the arrangement plate 62, a nut 58 of the first seat side frame 18 is inserted into the slide hole 60, and the bolt 64 is screwed into the nut 58. The arrangement plate 62 is fixed to the nut 58 and the second seat side frame 20 is arranged between the upper and lower ends of the arrangement plate 62 and the first seat side frame 18 in a state where the movement in the left-right direction is locked. Has been. The nut 58 and the slide hole 60 are latched relative to each other in the vertical direction and are movable relative to each other in the front-rear direction. As a result, the second seat side frame 20 is moved to the first seat side frame 18. It is supported to be slidable (movable) in the front-rear direction.

  A substantially rectangular frame-shaped first cushion frame 22 as a skeleton member is provided in the seat cushion 16, and the first cushion frame 22 is fastened and fixed to the second seat side frames 20 on both sides in the left-right direction by bolts 24. Has been. Thereby, the front-rear direction position of the seat cushion 16 can be adjusted by the first cushion frame 22 being slid in the front-rear direction with respect to the pair of first seat-side frames 18 together with the pair of second seat-side frames 20. (See FIG. 2).

  A rectangular cylindrical second cushion frame 26 as a length adjusting means is provided in the seat cushion 16 on the front side of the first cushion frame 22, and the second cushion frame 26 extends in the left-right direction. At the same time, the first cushion frame 22 is supported so as to be slidable (movable) in the front-rear direction. Accordingly, the length of the front portion of the seat cushion 16 in the front-rear direction can be adjusted by sliding the second cushion frame 26 in the front-rear direction with respect to the first cushion frame 22 (see FIG. 3).

  The second seat side frame 20 is mechanically connected to a position driving unit 28 (for example, a motor) that constitutes interlocking means, and the pair of second seat side frames 20 is driven by driving the position driving unit 28. The first cushion frame 22 and the pair of first seat side frames 18 are slidable in the front-rear direction.

  The second cushion frame 26 is mechanically connected to a length driving unit 30 (for example, a motor) that constitutes the interlocking means. When the length driving unit 30 is driven, the second cushion frame 26 is One cushion frame 22 is slidable in the front-rear direction.

  The position drive unit 28 and the length drive unit 30 are electrically connected to a control device 32 constituting interlocking means, and the position drive unit 28 and the length drive unit 30 can be driven by the control of the control device 32. Has been.

  A circumferential member 34 as a covering member is provided on the circumferential portion of the seat cushion 16, and the circumferential member 34 is provided at least above the first cushion frame 22 and the second cushion frame 26, on both sides in the front-rear direction and on both sides in the left-right direction. While covering, it has elasticity. At least the front part of the circumferential member 34 has elasticity, and thereby adjustment of the length in the front-rear direction of the front part of the seat cushion 16 is permitted.

  Side portions 36 are provided on both side portions of the circumferential member 34 in the left-right direction, and a center portion 38 is provided at a central portion of the circumferential member 34 in the left-right direction. It is protruding. Accordingly, the butt portion 40 and the thigh portion 42 (see FIG. 4) of the occupant 12 are mainly disposed on the center portion 38, thereby supporting the movement of the occupant 12 in both the left and right directions by the pair of side portions 36. Has been made possible.

  A rear support portion 44 as a bottom support portion is provided at the rear portion of the center portion 38, and the rear support portion 44 is disposed substantially horizontally. An inclined support portion 46 as a pelvis support portion is provided in the front-rear direction intermediate portion of the center portion 38 on the front side of the rear support portion 44, and the inclined support portion 46 is inclined upward in the direction toward the front side. Has been. A front support portion 48 as a thigh support portion is provided on the front side of the center portion 38 on the front side of the inclined support portion 46, and the front support portion 48 is disposed substantially horizontally.

  Next, the operation of the present embodiment will be described.

  In the seat device 10 having the above configuration, for example, the bottom portion 40 of the occupant 12 is disposed on the rear support portion 44 in the center portion 38 of the circumferential member 34 of the seat cushion 16, and the upper and front sides of the tilt support portion 46 are The thigh 42 of the occupant 12 is disposed on the support 48.

  Furthermore, since the lower end of the pelvis 50 of the occupant 12 is disposed in the vicinity of the rear side of the inclined support portion 46, the inclined support portion 46 can favorably support (inhibit) the movement of the butt portion 40 of the occupant 12 to the front side. The butt portion 40 of the occupant 12 can be favorably supported (see FIG. 5). As a result, the seat back 14 supports the occupant 12 from the rear side, so that the posture of the upper body 52 of the occupant 12 can be satisfactorily maintained, and the spine 54 of the occupant 12 is in an ideal shape (for example, a gentle S-shape). Can be maintained (see FIG. 4).

  In addition, the knee support 56 of the occupant 12 is disposed in the vicinity of the front side of the front end of the seat cushion 16 (a position where the knee back 56 of the occupant 12 does not contact the front end of the seat cushion 16), so that the inclined support unit 46 and the front support unit are provided. 48 can favorably support the thigh 42 of the occupant 12 from below, and the occupant 12 can satisfactorily perform driving operation (for example, pedal operation) of the vehicle by the lower limb portion 56.

  Here, the position driving unit 28 is driven, and the first cushion frame 22 and the pair of second seat side frames 20 are slid in the front-rear direction with respect to the pair of first seat side frames 18. The front-rear direction position is adjusted, and the front-rear direction position of the inclined support portion 46 is adjusted. Accordingly, regardless of the physique of the occupant 12 (corresponding to the shape of the buttocks 40 and the pelvis 50), the lower end of the pelvis 50 of the occupant 12 can be disposed in the vicinity of the rear side of the inclined support part 46, and the inclined support part 46 However, it is possible to favorably support the movement of the butt portion 40 of the occupant 12 toward the front side.

  Furthermore, when the position drive unit 28 is driven, the length drive unit 30 is driven in conjunction with the drive of the position drive unit 28 under the control of the control device 32, whereby the second cushion frame 26 is moved. By sliding in the front-rear direction with respect to the first cushion frame 22, the front-rear direction length of the front portion of the seat cushion 16 is adjusted.

  Specifically, as shown in FIG. 7, when the position driving unit 28 (butt support adjusting mechanism) is driven and the seat cushion 16 is moved to the front side from the state (standard state) of FIG. The length drive unit 30 (thigh support adjustment mechanism) is driven and the second cushion frame 26 is slid rearward with respect to the first cushion frame 22, so that the front and rear of the front portion of the seat cushion 16 are The direction length is reduced to the state shown in FIG. On the other hand, when the position driving unit 28 (butt support adjusting mechanism) is driven and the seat cushion 16 is moved rearward from the state (standard state) of FIG. By driving the (thigh support adjusting mechanism) and sliding the second cushion frame 26 forward relative to the first cushion frame 22, the front-rear direction length of the seat cushion 16 is increased, and FIG. 1 (C).

  Thereby, the front-rear direction position of the front end of the seat cushion 16 is made constant, so that regardless of the physique of the occupant 12 (corresponding to the length of the thigh 42), The knee back 56 of the occupant 12 can be disposed in the vicinity of the front side of the front end of the seat cushion 16 while maintaining the support from the side, and the front support portion 48 and the inclined support portion 46 lower the thigh 42 of the occupant 12 Can be favorably supported.

  Further, the length driving unit 30 can be driven without being interlocked with the driving of the position driving unit 28, and is not interlocked with the adjustment of the position of the seat cushion 16 (inclined support portion 46) in the front-rear direction. The front-rear direction length of the front portion of the cushion 16 (the front-rear direction position of the front end of the seat cushion 16) can be adjusted. Thus, regardless of the physique of the occupant 12, the lower end of the pelvis 50 of the occupant 12 can be further arranged in the vicinity of the rear side of the inclined support portion 46, and the inclined support portion 46 can move the buttocks 40 of the occupant 12 to the front side. It is possible to support the occupant 12 more in the vicinity of the front side of the front end of the seat cushion 16, and the front support part 48 and the inclined support part 46 further lower the thigh 42 of the occupant 12 from the lower side. Good support.

  In the present embodiment, the front-rear direction position of the front end of the seat cushion 16 is made constant by the interlocking of the position driving unit 28 and the length driving unit 30, but the position driving unit 28 and the length driving unit 30 The front-rear direction position of the front end of the seat cushion 16 may be changed by interlocking.

  In the present embodiment, the length driving unit 30 is driven in conjunction with the driving of the position driving unit 28. However, the position driving unit 28 is driven in conjunction with the driving of the length driving unit 30. It is good. In this case, the position driving unit 28 may be driven without being interlocked with the driving of the length driving unit 30.

  Further, in the present embodiment, the length of the front portion of the seat cushion 16 in the front-rear direction is adjusted by sliding the second cushion frame 26 in the seat cushion 16 with respect to the first cushion frame 22 in the front-rear direction. However, by providing a bag body (air bag) in the front part of the seat cushion 16 and adjusting (increasing / decreasing) the amount of fluid (air amount) in the bag body, the length of the bag body in the front-rear direction is adjusted. It is good also as a structure which adjusts the front-back direction length of a front part.

BRIEF DESCRIPTION OF THE DRAWINGS (A)-(C) is the top view seen from the top which shows the seat cushion of the seat apparatus which concerns on embodiment of this invention, (A) is the front-back direction position of a seat cushion arrange | positioned at the front side. FIG. 5B is a view in which the front-rear direction length of the front portion of the seat cushion is reduced, and FIG. It is the figure made into length, (C) is the figure which the front-back direction position of the seat cushion was arrange | positioned at the back side, and the front-back direction length of the front part of the seat cushion was enlarged. It is the side view seen from the left which shows the adjustment situation of the position in the front-back direction of the seat cushion in the seat device concerning an embodiment of the invention. It is the side view seen from the left which shows the adjustment condition of the front-back direction length of the front part of the seat cushion in the seat device concerning an embodiment of the invention. It is the side view seen from the left which shows the principal part of the sheet apparatus concerning an embodiment of the invention. It is the side view seen from the left which shows the back support part and inclination support part of the seat cushion in the seat device concerning an embodiment of the invention. It is the disassembled perspective view seen from the front diagonal left which shows the principal part of the sheet | seat apparatus which concerns on embodiment of this invention. It is a table | surface which shows the interlocking | linkage condition of the position drive part (butt part support adjustment mechanism) and the length drive part (thigh support adjustment mechanism) in the sheet | seat apparatus which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Seat apparatus 16 Seat cushion 20 2nd seat side frame (position adjustment means)
26 Second cushion frame (length adjusting means)
28 Position drive (interlocking means)
30 Length drive (interlocking means)
32 Control device (interlocking means)

Claims (3)

Position adjusting means for adjusting the position of the seat cushion in the front-rear direction;
A length adjusting means for adjusting a longitudinal length of the seat cushion;
Interlocking means for interlocking the position adjusting means and the length adjusting means;
A seat apparatus comprising:   2. The seat apparatus according to claim 1, wherein the interlocking means makes the front-rear direction position of the front end of the seat cushion constant when the position adjusting means and the length adjusting means are interlocked.   The sheet apparatus according to claim 1, wherein the interlocking unit enables non-interlocking between the position adjusting unit and the length adjusting unit.

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