Vehicle seats

Abstract

To provide a vehicle seat capable of executing unlock operation of a lock mechanism part only when a seat body is slid at a specified position.SOLUTION: A vehicle seat 100 comprises: a seat body enabling slide movement and predetermined movement independent of the slide movement; a lock mechanism part to regulate rotating movement of the seat body; an operation part that operates to execute unlock operation of the lock mechanism part; a first member 61 to which operating force from the operating part is transmitted; a second member for transmitting the operating force toward the lock mechanism part; and an intermediate member 81, which is disposed at a first position which is engaged with the first member 61 and the second member 71 when the seat body is slid to a specified position, and which is disposed at a second position which is unengaged with the first member 61 and the second member 71 when the seat body is slid to a position different from the specified position.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat. [Background technology]

[0002] For example, Japanese Patent No. 7026198 (Patent Document 1) discloses an interlock mechanism for a rotating vehicle seat.

[0003] The interlock mechanism includes two vehicle body-side slide rails, two seat-side slide rails, an abutment portion fixed to the vehicle body side, a stopper fixed to the vehicle seat side and abutting against the abutment portion when the vehicle seat slides to a predetermined position, a regulating member attached to the vehicle seat side via an elastic body and abutting against the abutment portion before the vehicle seat slides to the predetermined position and moving from a first position to a second position until the abutment portion and the stopper abut, a rotation mechanism that can rotate the vehicle seat, and a baffle plate that abuts against the regulating member to restrict rotation when the regulating member is positioned at the first position and allows rotation without abutting against the regulating member when the regulating member is positioned at the second position. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7026198 Summary of the Invention [Problem to be solved by the invention]

[0005] As disclosed in the above-mentioned Patent Document 1, a vehicle seat is known that is provided with a locking mechanism for restricting or allowing the rotational movement of the seat body.

[0006] In such vehicle seats, there is a demand for the locking mechanism to be unlocked only when the seat body is slid to a specific position, for the purpose of avoiding interference between the seat body and surrounding structures. One locking mechanism drive method involves transmitting the operating force generated by the occupant operating a lever or the like to the locking mechanism via a cable or the like, thereby unlocking the locking mechanism. The interlock mechanism disclosed in Patent Document 1 does not support such a drive method.

[0007] Therefore, the object of the present invention is to solve the above problem and to provide a vehicle seat in which the locking mechanism can be unlocked only when the seat body is slid to a specific position. [Means for solving the problem]

[0008] [1] A vehicle seat comprising: a seat body capable of sliding and a predetermined movement independent of the sliding movement; a locking mechanism for restricting the predetermined movement of the seat body; an operating unit operated by an occupant to unlock the locking mechanism; a first member to which an operating force from the operating unit is transmitted; a second member for transmitting the operating force to the locking mechanism; and an intermediate member that is disposed at a first position where it engages with the first member and the second member when the seat body is slid to a specific position, and transmits the operating force from the first member to the second member, and that is disposed at a second position where it disengages from the first member and the second member when the seat body is slid to a position different from the specific position, and does not transmit the operating force from the first member to the second member.

[0009] With the vehicle seat configured in this manner, when the seat body is slid to a specific position, the operating force is transmitted from the first member to the second member via the intermediate member, thereby enabling the locking mechanism to be unlocked. Furthermore, when the seat body is slid to a position other than the specific position, the operating force is not transmitted from the first member to the second member, preventing the locking mechanism from being unlocked. Therefore, the locking mechanism can be unlocked only when the seat body is slid to the specific position.

[0010] [2] A vehicle seat as described in [1], further comprising a lower rail fixed to the floor of the vehicle, an upper rail slidably assembled to the lower rail, and a base plate connected to the upper rail and on which the seat body is mounted, wherein the first member and the second member are attached to the base plate, and the intermediate member is attached to the lower rail.

[0011] In the vehicle seat configured in this manner, the positional relationship between the first and second members attached to the base plate and the intermediate member attached to the lower rail changes as the seat body slides, so that the intermediate member can be moved between the first position and the second position relative to the first and second members with a simple configuration.

[0012] [3] The vehicle seat described in [1] or [2], wherein each of the first member and the second member is rotatable about a first central axis, the intermediate member is rotatable about a second central axis, the first member has a first claw portion that protrudes radially outward from the first central axis, the second member has a second claw portion that protrudes radially outward from the first central axis at a position offset in the axial direction and circumferential direction of the first central axis from the first claw portion, and the intermediate member, when positioned at the first position, has a third claw portion that is interposed between the first claw portion and the second claw portion in the circumferential direction of the first central axis.

[0013] With a vehicle seat configured in this manner, by moving the third claw portion back and forth between the first and second claw portions, it is possible to selectively obtain a state in which the intermediate member is engaged with the first and second members, and a state in which the intermediate member is disengaged from the first and second members.

[0014] [4] The vehicle seat described in [3], wherein when the intermediate member is disposed in the first position, the first central axis and the second central axis extend in a straight line.

[0015] With a vehicle seat configured in this manner, when the intermediate member is positioned in the first position, the first central axis that serves as the rotation center of the first and second claw portions and the second central axis that serves as the rotation center of the third claw portion extend in a straight line, so that when the first member, second member, and intermediate member rotate around the first and second central axes, the positional relationship between the first and second claw portions and the third claw portion interposed between the first and second claw portions can be maintained.

[0016] [5] A vehicle seat as described in [1] or [2], wherein each of the first member and the second member is rotatable about a first central axis, the intermediate member is rotatable about a second central axis, the first member has a first gear portion having a plurality of teeth arranged in a circumferential direction of the first central axis, the second member has a second gear portion having a plurality of teeth arranged in a circumferential direction of the first central axis at a position offset in the axial direction of the first central axis from the first gear portion, and the intermediate member, when positioned at the first position, meshes with the first gear portion and the second gear portion and has a third gear portion having a plurality of teeth arranged in a circumferential direction of the second central axis.

[0017] With a vehicle seat configured in this manner, by moving the third gear portion back and forth relative to the first gear portion and the second gear portion, it is possible to selectively obtain a state in which the intermediate member is engaged with the first member and the second member, and a state in which the intermediate member is disengaged from the first member and the second member.

[0018] [6] A vehicle seat described in any of [1] to [5], wherein the seat body is capable of sliding within a predetermined range in the fore-and-aft direction, and the specific position is the rear end of the predetermined range.

[0019] According to the vehicle seat configured in this manner, the locking mechanism can be unlocked only when the seat body is slid to the rear end within a predetermined range. [Effects of the Invention]

[0020] As described above, according to the present invention, it is possible to provide a vehicle seat in which the locking mechanism can be unlocked only when the seat body is slid to a specific position. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a perspective view showing a vehicle seat in accordance with a first embodiment of the present invention. [Figure 2] 2 is a top view showing the operation of the vehicle seat in FIG. 1. FIG. [Figure 3] FIG. 2 is a perspective view showing the vehicle seat as viewed in the direction indicated by arrow III in FIG. [Figure 4] 2 is a perspective view of the vehicle seat in FIG. 1 as seen from the bottom side. FIG. [Figure 5] 5 is a perspective view showing the vehicle seat (seat body slid to R / M position) in the area surrounded by the two-dot chain line V in FIG. 4. FIG. [Figure 6] 5 is a perspective view showing a vehicle seat corresponding to the area surrounded by the two-dot chain line V in FIG. 4 (the seat body is slid to a position different from the R / M position). FIG. [Figure 7] FIG. 7 is an exploded view of the vehicle seat in FIGS. 5 and 6. [Figure 8] FIG. 10 is a perspective view showing a vehicle seat (with the seat body sliding to the R / M position) in accordance with a second embodiment of the present invention. [Figure 9]FIG. 10 is a perspective view showing a vehicle seat (with the seat body sliding to a position different from the R / M position) in accordance with a second embodiment of the present invention. [Figure 10] FIG. 10 is an exploded view showing the vehicle seat in FIG. 9. DETAILED DESCRIPTION OF THE INVENTION

[0022] An embodiment of the present invention will be described with reference to the drawings. In the drawings referred to below, identical or equivalent components are designated by the same reference numerals. Furthermore, among a pair of components provided on the left and right sides of the seat, the reference numeral for the component on the right side of the seat may be designated by "R," and the reference numeral for the component on the left side of the seat may be designated by "L."

[0023] (Embodiment 1) Fig. 1 is a perspective view showing a vehicle seat in accordance with embodiment 1 of the present invention, Fig. 2 is a top view showing the operation of the vehicle seat in Fig. 1.

[0024] 1 and 2, a vehicle seat 100 according to the present embodiment is mounted on a vehicle. Vehicle seat 100 is a driver's seat in which a driver of the vehicle sits.

[0025] The vehicle seat 100 includes a seat body 10, slide rails 12 (12R, 12L), and a base plate 31.

[0026] The seat body 10 is a main body portion of a vehicle seat 100 including a seat cushion and a seat back.

[0027] The seat body 10 has a cushion frame 16. The cushion frame 16 forms the skeleton of the seat cushion. The cushion frame 16 has side frames 17 (17R, 17L). The side frames 17 extend in the front-rear direction. The side frames 17R and 17L are spaced apart from each other in the left-right direction. The side frames 17 may be equipped with a lifter mechanism for raising and lowering the seat cushion.

[0028] The slide rails 12 support the seat body 10 so that it can slide in the front-rear direction. The slide rails 12R and 12L are provided at an interval from each other in the left-right direction. The slide rail 12R is provided below the side frame 17R. The slide rail 12L is provided below the side frame 17L.

[0029] The slide rail 12 has a lower rail 13 and an upper rail 14. The lower rail 13 extends in the front-rear direction. The lower rail 13 is fixed to the floor of the vehicle. The upper rail 14 is disposed on an upper surface of the lower rail 13. The upper rail 14 is combined with the lower rail 13 so as to be slidable in the front-rear direction.

[0030] The base plate 31 is made of a metal plate material. The base plate 31 is arranged parallel to the horizontal direction. The base plate 31 is connected to the upper rail 14. The base plate 31 is bridged between the upper rail 14 of the slide rail 12R and the upper rail 14 of the slide rail 12L in the left-right direction. The base plate 31 faces the floor panel of the vehicle with a gap in between in the up-down direction. The seat body 10 is mounted on the base plate 31.

[0031] The seat body 10 can slide within a predetermined range in the front-to-rear direction by means of slide rails 12. The seat body 10 can slide between an F / M (front most) position and an R / M (rear most) position. The F / M position corresponds to the front end of the predetermined range in which the seat body 10 can slide in the front-to-rear direction, and the R / M position corresponds to the rear end of the predetermined range in which the seat body 10 can slide in the front-to-rear direction. Figures 1 and 2 show the seat body 10 when slid to the R / M position.

[0032] The seat body 10 is capable of a predetermined movement independent of the sliding movement in the front-rear direction. In this embodiment, the seat body 10 is capable of a rotation movement between a seating position 10A and a boarding / exiting position 10B. The sliding movement of the seat body 10 and the rotation movement of the seat body 10 are not performed simultaneously.

[0033] The seat body 10 further includes a first support frame 18, a second support frame 19, and a rotating plate 21.

[0034] The first support frame 18 and the second support frame 19 extend in the left-right direction. Both ends of the first support frame 18 and the second support frame 19 extending in the left-right direction are connected to the cushion frame 16. The first support frame 18 and the second support frame 19 are spaced apart from each other in the front-rear direction.

[0035] The rotating plate 21 is provided above the base plate 31. The rotating plate 21 is supported by the first support frame 18 and the second support frame 19. The rotating plate 21 spans between the first support frame 18 and the second support frame 19 in the front-rear direction.

[0036] The vehicle seat 100 further includes a connecting unit 23. The connecting unit 23 is provided between the base plate 31 and the rotating plate 21 in the up-down direction. The connecting unit 23 connects the base plate 31 and the rotating plate 21 so that the rotating plate 21 can rotate relative to the base plate 31. The connecting unit 23 connects the base plate 31 and the rotating plate 21 so that the seat body 10 can rotate between a seating position 10A and a boarding / exiting position 10B.

[0037] The vehicle is provided with an entrance / exit door 132 that is used when a passenger (driver) gets in and out of the vehicle. The entrance / exit door 132 opens on the side of the vehicle seat 100. The entrance / exit door 132 opens in front of a pillar 131 that is arranged between the vehicle seat 100 and the seat behind it.

[0038] The seating position 10A is a position of the seat body 10 that is selected when the occupant drives the vehicle. When the seat body 10 is disposed in the seating position 10A, the seat body 10 faces directly toward the steering wheel 134 of the vehicle in the front-rear direction. The occupant seated in the seat body 10 faces forward.

[0039] The entry / exit position 10B is a position of the seat body 10 that is selected when an occupant gets in and out of the vehicle seat 100. When the seat body 10 is positioned at the entry / exit position 10B, the right front end of the seat body 10 protrudes outside the vehicle through the entry / exit door 132. The driver seated in the seat body 10 faces diagonally forward to the right.

[0040] The seat body 10 rotates in an arc extending diagonally forward to the right while shifting forward from the seating position 10A to the entry / exit position 10B. The seat body 10 rotates in an arc extending diagonally backward to the left while shifting backward from the entry / exit position 10B to the seating position 10A. By such a rotational movement, the seat body 10 can be moved between the seating position 10A and the entry / exit position 10B while avoiding interference between the seat body 10 and the pillar 131.

[0041] As an example, the connecting unit 23 includes a guide member that linearly guides the rotating plate 21 in the front-rear and left-right directions, and a link mechanism that rotates the rotating plate 21 so that the orientation of the rotating plate 21 changes within a horizontal plane. The connecting unit 23 is a manual type that rotates the seat body 10 by an external force applied by the occupant.

[0042] Fig. 3 is a perspective view showing the vehicle seat as viewed in the direction indicated by arrow III in Fig. 1. Fig. 4 is a perspective view showing the vehicle seat in Fig. 1 as viewed from the bottom side. With reference to Figs. 1 to 4, vehicle seat 100 further has a locking mechanism 41. Locking mechanism 41 restricts the rotational movement of seat body 10.

[0043] The locking mechanism 41 is attached to the base plate 31 via an attachment plate 46. The locking mechanism 41 is attached to the rear end of the base plate 31. The locking mechanism 41 is provided between the base plate 31 and the rotating plate 21 in the up-down direction. The locking mechanism 41 has a pin member 42. The pin member 42 extends in the up-down direction. The pin member 42 is supported so as to be slidable in its axial direction (up-down direction). The rotating plate 21 is provided with a pin insertion hole 22. The pin insertion hole 22 is a through-hole that passes through the rotating plate 21 in the up-down direction. When the seat main body 10 is placed in the seating position 10A, the pin insertion hole 22 faces the pin member 42 in the up-down direction.

[0044] The locking mechanism 41 incorporates a spring mechanism that applies elastic force to the pin member 42 to slide the pin member 42 toward the pin insertion hole 22, and a drive mechanism that slides the pin member 42 in a direction away from the pin insertion hole 22 when it receives a pulling force from the second wire 140 described later.

[0045] When the pin member 42 is inserted into the pin insertion hole 22 (locking operation), the rotational movement of the seat body 10 from the seating position 10A toward the boarding / exiting position 10B is restricted. When the pin member 42 is removed from the pin insertion hole 22 (unlocking operation), the rotational movement of the seat body 10 from the seating position 10A toward the boarding / exiting position 10B is permitted.

[0046] The vehicle seat 100 further includes an operating unit 26. The operating unit 26 is operated by the occupant to perform an unlocking operation on the locking mechanism 41. The operating unit 26 is manually operated by the occupant. The locking mechanism 41 performs an unlocking operation when an operating force is transmitted from the operating unit 26.

[0047] The operating unit 26 is provided on the seat body 10. The operating unit 26 is attached to the cushion frame 16 (side frame 17). The operating unit 26 has a lever shape and is provided so as to be rotatable around a central axis 110 extending in the left-right direction. When the occupant operates the lever, the operating unit 26 rotates by a predetermined angle around the central axis 110.

[0048] In this embodiment, when the seat body 10 is slid to the R / M position, the operating force from the operating unit 26 is transmitted to the locking mechanism 41, and when the seat body 10 is slid to a position other than the R / M position, the operating force from the operating unit 26 is not transmitted to the locking mechanism 41. By allowing the rotational movement of the seat body 10 only when the seat body 10 is slid to the R / M position, it is possible to avoid interference between the seat body 10 and various structures around the instrument panel, such as the steering wheel 134.

[0049] A mechanism for transmitting the operating force from the operating portion 26 to the locking mechanism portion 41 will be described below.

[0050] Fig. 5 is a perspective view showing the vehicle seat in the area surrounded by the two-dot chain line V in Fig. 4 (the seat body slides to the R / M position). Fig. 6 is a perspective view showing the vehicle seat corresponding to the area surrounded by the two-dot chain line V in Fig. 4 (the seat body slides to a position other than the R / M position). Fig. 7 is an exploded view showing the vehicle seat in Figs. 5 and 6.

[0051] 4 to 7, the vehicle seat 100 further includes a first member 61, an intermediate member 81, and a second member 71.

[0052] The operating force from the operating unit 26 is transmitted to the first member 61. The second member 71 transmits the operating force from the operating unit 26 toward the lock mechanism 41.

[0053] As shown in Fig. 5, when the seat main body 10 is slid to the R / M position, the intermediate member 81 is disposed relative to the first member 61 and the second member 71 at a first position 81A where the intermediate member 81 is engaged with the first member 61 and the second member 71. The intermediate member 81 transmits the operating force from the operating unit 26 from the first member 61 to the second member 71. As shown in Fig. 6, when the seat main body 10 is slid to a position other than the R / M position, the intermediate member 81 is disposed relative to the first member 61 and the second member 71 at a second position 81B where the intermediate member 81 is disengaged from the first member 61 and the second member 71. The intermediate member 81 does not transmit the operating force from the operating unit 26 from the first member 61 to the second member 71.

[0054] More specifically, the vehicle seat 100 further includes a first wire 120, a second wire 140, a first mounting bracket 66, a first center pin 67, and a first coil spring .

[0055] The first wire 120 extends between the operating unit 26 and the first member 61. When the driver operates the operating unit 26, the first wire 120 is pulled toward the operating unit 26. The second wire 140 extends between the second member 71 and the locking mechanism 41. When the second wire 140 is pulled toward the second member 71, the locking mechanism 41 performs an unlocking operation.

[0056] The first member 61 and the second member 71 are attached to the base plate 31. The first member 61 and the second member 71 are attached to the base plate 31 via a first mounting bracket 66. When the seat body 10 slides, the first member 61 and the second member 71 slide in the front-to-rear direction together with the seat body 10.

[0057] The first member 61 and the second member 71 are disposed in the up-down direction between the floor panel of the vehicle and the base plate 31. The first member 61 and the second member 71 are disposed adjacent to the slide rail 12 (slide rail 12L) in the left-right direction.

[0058] The first member 61 and the second member 71 are provided rotatably around a first central shaft 210. The first central shaft 210 extends in the vertical direction. The first member 61 and the second member 71 are stacked on top of each other in the axial direction of the first central shaft 210. The second member 71 is disposed between the base plate 31 and the first member 61 in the axial direction of the first central shaft 210.

[0059] The first center pin 67 extends axially along the first center axis 210. The first center pin 67 is inserted through the first member 61 and the second member 71 in the axial direction of the first center axis 210 and is connected to the first mounting bracket 66.

[0060] The first member 61 has a first claw portion 62, a first connecting portion 63, and a first locking portion 64. The first claw portion 62 is configured to protrude radially outward from the first central axis 210. The first claw portion 62 is made of a plate body that extends parallel to a horizontal plane and whose thickness direction is in the up-down direction.

[0061] The first connecting portion 63 is configured to protrude radially outward from the first central shaft 210 at a position offset in the circumferential direction of the first central shaft 210 with respect to the first claw portion 62. A first wire 120 is connected to the first connecting portion 63. The first wire 120 extends from the first connecting portion 63 along the circumferential direction of the first central shaft 210. The first locking portion 64 is configured to protrude radially outward from the first central shaft 210 at a position offset in the circumferential direction of the first central shaft 210 with respect to the first claw portion 62 and the first connecting portion 63, and to bend at the protruding end in a direction approaching the base plate 31.

[0062] The second member 71 has a second claw portion 72, a second connecting portion 73, and a second locking portion 74. The second claw portion 72 is configured to protrude radially outward from the first center shaft 210 at a position offset in the axial direction and circumferential direction of the first center shaft 210 relative to the first claw portion 62. The first claw portion 62 and the second claw portion 72 are provided at an interval from each other in the circumferential direction of the first center shaft 210. The second claw portion 72 is made of a plate body extending parallel to a horizontal plane, with the thickness direction being in the up-down direction.

[0063] The second connecting portion 73 is configured to protrude radially outward from the first central shaft 210 at a position offset in the circumferential direction of the first central shaft 210 with respect to the second claw portion 72. A second wire 140 is connected to the second connecting portion 73. The second wire 140 extends from the second connecting portion 73 along the circumferential direction of the first central shaft 210. The second locking portion 74 is configured to protrude radially outward from the first central shaft 210 at a position offset in the circumferential direction of the first central shaft 210 with respect to the second claw portion 72 and the second connecting portion 73, and to bend at its protruding end in a direction approaching the base plate 31.

[0064] The first coil spring 76 is fitted onto the outer periphery of the first center pin 67. One end of the first coil spring 76 is locked by the first locking portion 64, and the other end of the first coil spring 76 is locked by the second locking portion 74. The first coil spring 76 is provided so as to apply an elastic force to the first member 61 and the second member 71 in the circumferential direction of the first center axis 210.

[0065] 4 to 7, the first member 61 is biased in a clockwise direction about the first central axis 210 by the elastic force of the first coil spring 76. The elastic force acting on the first member 61 from the first coil spring 76 corresponds to the pulling force that pulls the first wire 120 from the operation unit 26 toward the first member 61. The second member 71 is biased in a counterclockwise direction about the first central axis 210 by the elastic force of the first coil spring 76. The elastic force acting on the second member 71 from the first coil spring 76 corresponds to the pulling force that pulls the second wire 140 from the locking mechanism unit 41 toward the second member 71.

[0066] 6, the second claw portion 72 is disposed between the first claw portion 62 and the first locking portion 64 in the circumferential direction of the first central shaft 210. The second claw portion 72 and the first locking portion 64 are in contact with each other in the circumferential direction of the first central shaft 210 due to the elastic force of the first coil spring 76. A gap is provided between the second claw portion 72 and the first claw portion 62 in the circumferential direction of the first central shaft 210.

[0067] The vehicle seat 100 further includes a second mounting bracket 86 , a second center pin 88 , and a second coil spring 83 .

[0068] The intermediate member 81 is attached to the lower rail 13 of the slide rail 12 (12L). The intermediate member 81 is attached to the lower rail 13 via a second mounting bracket 86. The intermediate member 81 remains stationary when the seat main body 10 slides. As the seat main body 10 slides, the relative positional relationship in the front-rear direction between the first member 61 and the second member 71 and the intermediate member 81 changes.

[0069] The intermediate member 81 is disposed in the up-down direction between the floor panel of the vehicle and the base plate 31. The first member 61, the second member 71, and the intermediate member 81 are arranged side by side in a straight line in the front-rear direction.

[0070] The intermediate member 81 is provided rotatably around a second central shaft 220. The second central shaft 220 extends in the vertical direction. The second center pin 88 extends on the axis of the second central shaft 220. The second center pin 88 is inserted through the intermediate member 81 in the axial direction of the second central shaft 220 and is connected to the second mounting bracket 86.

[0071] The intermediate member 81 has a third claw portion 82. The third claw portion 82 protrudes outward in the radial direction of the second central shaft 220 and is configured to bend at its protruding end in a direction approaching the base plate 31.

[0072] The second mounting bracket 86 is Around It has a stopper 87. Around The stop portion 87 is configured to protrude radially outward from the second center axis 220 at a position offset circumferentially from the third claw portion 82, and to bend at its protruding end in a direction approaching the base plate 31.

[0073] The second coil spring 83 is suspended between the intermediate member 81 and the second mounting bracket 86. The second coil spring 83 is provided to apply an elastic force to the intermediate member 81 in the circumferential direction of the second central shaft 220. In the bottom views shown in FIGS. 4 to 7, the intermediate member 81 is biased clockwise around the second central shaft 220 by the elastic force of the second coil spring 83. The third claw portion 82 and Around The stoppers 87 abut against each other in the circumferential direction of the second central shaft 220 due to the elastic force of the second coil spring 83 .

[0074] 5, when the seat main body 10 is slid to the R / M position, the intermediate member 81 is disposed at a first position 81A relative to the first member 61 and the second member 71. In this case, the first central axis 210 and the second central axis 220 extend in a straight line in the up-down direction. The intermediate member 81 is disposed opposite the first member 61 and the second member 71 in the axial direction of the first central axis 210 and the second central axis 220. The intermediate member 81 is disposed between a floor panel of the vehicle and the first member 61.

[0075] The third claw portion 82 is interposed between the first claw portion 62 and the second claw portion 72 in the circumferential direction of the first center axis 210 (second center axis 220), so that the intermediate member 81 is engaged with the first member 61 and the second member 71.

[0076] When the operating unit 26 is lever-operated, the first wire 120 is pulled toward the operating unit 26, causing the first member 61 to rotate counterclockwise around the first central shaft 210. As the first member 61 rotates, the first claw 62 presses the second claw 72 of the second member 71 in the circumferential direction of the first central shaft 210 via the third claw 82 of the intermediate member 81, causing the second member 71 to rotate counterclockwise around the first central shaft 210. As a result, the intermediate member 81 transmits the operating force from the operating unit 26 from the first member 61 to the second member 71. As the second member 71 rotates, the second wire 140 is pulled toward the second member 71, causing the locking mechanism 41 to perform an unlocking operation.

[0077] 6, when the seat main body 10 is slid to a position other than the R / M position, the intermediate member 81 is disposed at a second position 81B relative to the first member 61 and the second member 71. The intermediate member 81 (second central shaft 220) and the first member 61 and the second member 71 (first central shaft 210) are disposed apart from each other in the front-rear direction. The intermediate member 81 (second central shaft 220) is disposed rearward of the first member 61 and the second member 71 (first central shaft 210).

[0078] The intermediate member 81 is disengaged from the first member 61 and the second member 71 by being disengaged from between the first claw portion 62 and the second claw portion 72 in the circumferential direction of the first central shaft 210.

[0079] When the operating unit 26 is lever-operated, the first wire 120 is pulled toward the operating unit 26, causing the first member 61 to rotate counterclockwise around the first central shaft 210. Because the first claw 62 and the second claw 72 are provided offset in the axial direction of the first central shaft 210, the first claw 62 does not press the second claw 72 in the circumferential direction of the first central shaft 210. As a result, the intermediate member 81 does not transmit the operating force from the operating unit 26 from the first member 61 to the second member 71. Because the second member 71 remains stationary, the locking mechanism 41 does not perform the unlocking operation.

[0080] In the present embodiment, the first member 61 and the second member 71 are attached to the base plate 31 on which the seat body 10 is mounted, and the intermediate member 81 is attached to the lower rail 13 fixed to the floor panel of the vehicle. With this configuration, the positional relationship between the first member 61 and the second member 71 and the intermediate member 81 in the front-rear direction changes as the seat body 10 slides. Therefore, a simple structure can be obtained that moves the intermediate member 81 between the first position 81A and the second position 81B relative to the first member 61 and the second member 71.

[0081] Furthermore, in this embodiment, when intermediate member 81 is disposed at first position 81A, first central axis 210 and second central axis 220 extend in a straight line in the up-down direction. With this configuration, when first member 61, second member 71, and intermediate member 81 rotate around first central axis 210 and second central axis 220, the positional relationship between first claw portion 62, second claw portion 72, and third claw portion 82 interposed between first claw portion 62 and second claw portion 72 can be maintained. This allows first member 61, second member 71, and intermediate member 81 to be configured compactly.

[0082] To summarize the structure of vehicle seat 100 according to the first embodiment of the present invention as described above, vehicle seat 100 according to the present embodiment includes seat body 10 that is capable of sliding and rotating as a predetermined operation independent of the sliding operation, locking mechanism 41 for restricting the rotation of seat body 10, operating unit 26 that is operated by the occupant to unlock locking mechanism 41, first member 61 to which an operating force from operating unit 26 is transmitted, second member 71 that transmits the operating force to locking mechanism 41, and seat back 10. When the seat body (10) is slid to a specific R / M position, the intermediate member (81) is disposed at a first position (81A) relative to the first member (61) and the second member (71) where it engages with the first member (61) and the second member (71), and transmits the operating force from the first member (61) to the second member (71), and when the seat body (10) is slid to a position other than the R / M position, the intermediate member (81) is disposed at a second position (81B) relative to the first member (61) and the second member (71) where it is disengaged from the first member (61) and the second member (71), and does not transmit the operating force from the first member (61) to the second member (71).

[0083] According to the vehicle seat 100 of the first embodiment of the present invention configured as described above, the locking mechanism 41 can be unlocked only when the seat body 10 is slid to the R / M position.

[0084] In the present invention, the specific position at which the locking mechanism is capable of the unlocking operation is not particularly limited, and may be, for example, the F / M position, or, if the sliding direction of the seat body in the present invention is the left-right direction, may be the position of one end in the left-right direction. The predetermined operation that the seat body can perform in the present invention is not limited to the rotation operation, and may be, for example, a space-up operation in which the seat body flips up toward the side of the vehicle.

[0085] (Embodiment 2) Fig. 8 is a perspective view showing a vehicle seat (seat body slides to R / M position) in embodiment 2 of the present invention. Fig. 9 is a perspective view showing a vehicle seat (seat body slides to a position other than the R / M position) in embodiment 2 of the present invention. Fig. 10 is an exploded assembly view showing the vehicle seat in Fig. 9.

[0086] The vehicle seat of this embodiment basically has the same structure as vehicle seat 100 of Embodiment 1. Hereinafter, description of overlapping structures will not be repeated.

[0087] 8 to 10, the vehicle seat 100 in the present embodiment has a first member 161 instead of the first member 61 in the first embodiment, a second member 171 instead of the second member 71 in the first embodiment, and an intermediate member 181 instead of the intermediate member 81 in the first embodiment.

[0088] The first member 161 has a first gear portion 162 instead of the first claw portion 62 in the first embodiment. The first gear portion 162 is configured so that a plurality of teeth are aligned in the circumferential direction of the first central axis 210. The first gear portion 162 is made of a plate body that extends parallel to the horizontal plane and whose thickness direction is in the up-down direction.

[0089] The second member 171 has a second gear portion 172 instead of the second claw portion 72 in the first embodiment. The second gear portion 172 is configured so that a plurality of teeth are aligned in the circumferential direction of the first central shaft 210 at a position shifted in the axial direction of the first central shaft 210 with respect to the first gear portion 162. The first gear portion 162 and the second gear portion 172 are stacked on top of each other in the axial direction of the first central shaft 210.

[0090] Intermediate member 181 has a third gear portion 182 instead of third claw portion 82 in embodiment 1. Third gear portion 182 is configured so that a plurality of teeth are arranged in the circumferential direction of second central shaft 220. Third gear portion 182 is provided so as to face first gear portion 162 and second gear portion 172 in the front-rear direction. The range of third gear portion 182 in the axial direction of second central shaft 220 straddles the range of first gear portion 162 and second gear portion 172 in the axial direction of first central shaft 210.

[0091] As shown in FIG. 8, when the seat body 10 is slid to the R / M position, the third gear portion 182 of the intermediate member 181 meshes with the first gear portion 162 and the second gear portion 172, thereby rotating the first member 161 and the second member 171 At this time, the intermediate member 181 The operation force from the operation unit 26 is transmitted to the first member 161 From the second member 171 , the lock mechanism 41 performs an unlocking operation.

[0092] As shown in FIG. 9, when the seat body 10 is slid to a position different from the R / M position, the third gear portion 182 is disengaged from the first gear portion 162 and the second gear portion 172, and the intermediate member 181 is disengaged from the first member 162. 161 and the second member 171 At this time, the intermediate member 181 The operation force from the operation unit 26 is transmitted to the first member 161 From the second member 171 Since the signal is not transmitted to the lock mechanism 41, the lock mechanism 41 does not perform the unlocking operation.

[0093] The vehicle seat according to the second embodiment of the present invention configured in this manner can achieve the same effects as those of the vehicle seat 100 according to the first embodiment.

[0094] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0095] 10 seat body, 10A seating position, 10B getting-in / out position, 12, 12L, 12R slide rail, 13 lower rail, 14 upper rail, 16 cushion frame, 17, 17L, 17R side frame, 18 first support frame, 19 second support frame, 21 rotating plate, 22 pin insertion hole, 23 connecting unit, 26 operation part, 31 base plate, 41 locking mechanism part, 42 pin member, 46 mounting plate, 61, 161 first member, 62 first claw portion, 63 first connection part, 64 first locking part, 66 first mounting bracket, 67 first center pin, 71, 171 second member, 72 second claw portion, 73 second connection part, 74 second locking part, 76 first coil spring, 81, 181 intermediate member, 81A first position, 81B second position, 82 Third claw, 83 Second coil spring, 86 Second mounting bracket, 87 Around Stop portion, 88 second center pin, 100 vehicle seat, 110 center axis, 120 first wire, 131 pillar, 132 boarding door, 134 steering, 140 second wire, 162 first gear portion, 172 second gear portion, 182 third gear portion, 210 first center axis, 220 second center axis.

Claims

1. a seat body capable of sliding and performing a predetermined movement independent of the sliding movement; a locking mechanism for restricting the predetermined movement of the seat body; an operating unit that is operated by an occupant to unlock the locking mechanism; a first member to which an operating force from the operating unit is transmitted; a second member that transmits the operating force toward the locking mechanism; an intermediate member that is disposed at a first position relative to the first member and the second member so as to be engaged with the first member and the second member when the seat main body is slid to a specific position, and that transmits the operating force from the first member to the second member, and that is disposed at a second position relative to the first member and the second member so as not to be engaged with the first member and the second member when the seat main body is slid to a position different from the specific position, and that does not transmit the operating force from the first member to the second member; A lower rail that is fixed to the vehicle floor, an upper rail slidably mounted to the lower rail; a base plate connected to the upper rail and on which the seat body is mounted, the first member and the second member are attached to the base plate; The intermediate member is attached to the lower rail.

2. A seat body capable of a sliding movement and a predetermined movement independent of the sliding movement; a locking mechanism for restricting the predetermined movement of the seat body; an operating unit that is operated by an occupant to unlock the locking mechanism; a first member to which an operating force from the operating unit is transmitted; a second member that transmits the operating force toward the locking mechanism; an intermediate member that is disposed at a first position relative to the first member and the second member so as to be engaged with the first member and the second member when the seat main body is slid to a specific position, and transmits the operating force from the first member to the second member, and that is disposed at a second position relative to the first member and the second member so as not to be engaged with the first member and the second member when the seat main body is slid to a position different from the specific position, and does not transmit the operating force from the first member to the second member; The first member and the second member are provided rotatably about a first central axis, the intermediate member is provided rotatably about a second central axis, the first member has a first claw portion that protrudes radially outward from the first central shaft, the second member has second claw portions that protrude radially outward from the first center shaft at positions shifted in the axial direction and circumferential direction of the first center shaft with respect to the first claw portions, A vehicle seat, wherein the intermediate member has a third claw portion that is interposed between the first claw portion and the second claw portion in the circumferential direction of the first central axis when positioned at the first position.

3. The vehicle seat according to claim 2 , wherein the first central axis and the second central axis extend in a straight line when the intermediate member is disposed in the first position.

4. A seat body capable of a sliding movement and a predetermined movement independent of the sliding movement; a locking mechanism for restricting the predetermined movement of the seat body; an operating unit that is operated by an occupant to unlock the locking mechanism; a first member to which an operating force from the operating unit is transmitted; a second member that transmits the operating force toward the locking mechanism; an intermediate member that is disposed at a first position relative to the first member and the second member so as to be engaged with the first member and the second member when the seat main body is slid to a specific position, and transmits the operating force from the first member to the second member, and that is disposed at a second position relative to the first member and the second member so as not to be engaged with the first member and the second member when the seat main body is slid to a position different from the specific position, and does not transmit the operating force from the first member to the second member; The first member and the second member are provided rotatably about a first central axis, the intermediate member is provided rotatably about a second central axis, the first member has a first gear portion having a plurality of teeth arranged in a circumferential direction of the first central axis, the second member has a second gear portion, the second gear portion having a plurality of teeth arranged in a circumferential direction of the first central shaft, at a position shifted in the axial direction of the first central shaft with respect to the first gear portion, The intermediate member, when positioned at the first position, has a third gear portion that meshes with the first gear portion and the second gear portion and has a plurality of teeth arranged in a circumferential direction of the second central axis.

5. The seat body is capable of sliding within a predetermined range in the front-rear direction, The vehicle seat according to claim 1 , wherein the specific position is a rear end portion of the predetermined range.

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