Seat for a vehicle

Abstract

A seat for a vehicle includes a seat main body capable of a sliding action and a prescribed action independent of the sliding action, a lock mechanism portion for restricting a rotational action of the seat main body, an operation portion to be operated in order to cause the lock mechanism portion to perform an unlocking action, a first member to which an operation force from the operation portion is transmitted, a second member to transmit the operation force toward the lock mechanism portion, and an intermediate member configured at a first position engaged with the first member and the second member in a case where the seat main body sliding action reaches a specific position, and configured at a second position not engaged with the first member and the second member in a case where the seat main body sliding action reaches a position different from the specific position.

Description

Technical Field

[0001] This invention relates to a seat for a vehicle. Background Technology

[0002] For example, Japanese Patent No. 7026198 discloses an interlocking mechanism for a rotating seat in a vehicle.

[0003] The interlocking mechanism includes: two vehicle body side sliding rails; two seat side sliding rails; an abutment fixed to the vehicle body side; a stop fixed to the vehicle seat side, abutting the abutment when the vehicle seat slides to a predetermined position; a limiting member installed on the vehicle seat side via an elastic body, abutting the abutment before the vehicle seat slides to the predetermined position, and moving from a first position to a second position during the period until the abutment abuts the stop; a rotating mechanism capable of rotating the vehicle seat; and a baffle that abuts the limiting member to limit rotation when the limiting member is positioned in the first position, and does not abut the limiting member to allow rotation when the limiting member is positioned in the second position. Summary of the Invention

[0004] As disclosed in Japanese Patent No. 7026198, there is a known vehicle seat that has a locking mechanism for restricting or allowing the rotation of the seat body.

[0005] In such vehicle seats, to avoid interference between the seat body and surrounding structures, there is a requirement that the locking mechanism should be able to unlock only when the seat body slides to a specific position. On the other hand, one method of driving the locking mechanism involves transmitting an operating force generated by the occupant's lever operation, etc., via a cable to the locking mechanism, thereby causing it to unlock. The interlocking mechanism disclosed in Japanese Patent No. 7026198 does not support this driving method.

[0006] Therefore, the object of the present invention is to solve the above-mentioned problems and provide a vehicle seat that can unlock the locking mechanism only when the seat body slides to a specific position.

[0007] [1] A vehicle seat includes: a seat body capable of sliding and a predetermined action independent of the sliding action; a locking mechanism for restricting the predetermined action of the seat body; an operating part operated by an occupant to unlock the locking mechanism; a first member for receiving an operating force from the operating part; a second member for transmitting the operating force toward the locking mechanism; and an intermediate member that, when the seat body slides to a specific position, is disposed in a first position engaging with the first and second members and transmits the operating force from the first member to the second member, and when the seat body slides to a position different from the specific position, is disposed in a second position not engaging with the first and second members and does not transmit the operating force from the first member to the second member.

[0008] In this type of vehicle seat, when the seat body slides to a specific position, the operating force is transmitted from the first member through the intermediate member to the second member, thus enabling the locking mechanism to unlock. Conversely, when the seat body slides to a position different from the specific position, the operating force is not transmitted from the first member to the second member, therefore the locking mechanism cannot unlock. Thus, the locking mechanism can unlock only when the seat body slides to the specific position.

[0009] [2] The vehicle seat according to [1] further comprises: a lower rail fixed to the floor of the vehicle; an upper rail assembled to the lower rail in a manner that allows it to slide relative to the lower rail; and a base plate connected to the upper rail and supporting the seat body, wherein the first component and the second component are mounted on the base plate, and the intermediate component is mounted on the lower rail.

[0010] With this configuration, the positional relationship between the first and second components mounted on the base plate and the intermediate component mounted on the lower track changes as the seat body slides. Therefore, with this simple structure, the intermediate component can be moved between a first position and a second position relative to the first and second components.

[0011] [3] According to the vehicle seat described in [1] or [2], each of the first member and the second member is arranged in a manner that allows rotation about a first central axis, and the intermediate member is arranged in a manner that allows rotation about a second central axis. The first member has a first claw portion that protrudes outward in a radial direction toward the first central axis. The second member has a second claw portion that protrudes outward in a radial direction toward the first central axis at a position offset from the first claw portion in the axial and circumferential directions relative to the first claw portion. The intermediate member has a third claw portion that, when arranged in the first position, is inserted between the first claw portion and the second claw portion in the circumferential direction of the first central axis.

[0012] According to the vehicle seat configured in this way, by moving the third claw relative to the first claw and the second claw, 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 not engaged with the first member and the second member.

[0013] [4] According to the vehicle seat described in [3], when the intermediate member is positioned in the first position, the first central axis and the second central axis extend in a straight line.

[0014] According to the configuration of the vehicle seat, when the intermediate member is positioned in the first position, the first central axis, which serves as the rotation center of the first claw and the second claw, and the second central axis, which serves as the rotation center of the third claw, extend in a straight line. Therefore, when the first member, the second member, and the intermediate member rotate around the first central axis and the second central axis, the positional relationship between the first claw and the second claw and the third claw inserted between the first claw and the second claw can be maintained.

[0015] [5] According to the vehicle seat described in [1] or [2], each of the first member and the second member is arranged in a manner that allows rotation about a first central axis, and the intermediate member is arranged in a manner that allows rotation about a second central axis. The first member has a first gear portion with a plurality of teeth arranged in the circumferential direction of the first central axis. The second member has a second gear portion with a plurality of teeth arranged in the circumferential direction of the first central axis at a position offset from the first gear portion in the axial direction of the first central axis. The intermediate member has a third gear portion that meshes with the first gear portion and the second gear portion when disposed in the first position and has a plurality of teeth arranged in the circumferential direction of the second central axis.

[0016] According to the vehicle seat configured in this way, by moving the third gear section forward and backward relative to the first gear section and the second gear section, 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 not engaged with the first member and the second member.

[0017] [6] The vehicle seat according to any one of [1] to [5], wherein the seat body is capable of sliding within a predetermined range in the front-rear direction, and the specific position is the rear end within the predetermined range.

[0018] According to this configuration, the locking mechanism can be unlocked only when the seat body slides to the rear end within a specified range.

[0019] The foregoing description and other objects, features, aspects and advantages of the present invention will become clear from the following detailed description of the invention, which is understood in conjunction with the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a perspective view showing a vehicle seat according to Embodiment 1 of the present invention.

[0021] Figure 2 It is shown Figure 1 A top-down view of the movement of the seats in the vehicle.

[0022] Figure 3 It is shown in Figure 1 A three-dimensional view of a vehicle seat as seen in the direction indicated by arrow III.

[0023] Figure 4 Viewed from the bottom side Figure 1 A 3D diagram of seats used in vehicles.

[0024] Figure 5 It is shown by Figure 4 A three-dimensional view of a vehicle seat (with the main body of the seat sliding in the R / M position) within the area enclosed by the double-dotted line V.

[0025] Figure 6 It is shown that it is related to... Figure 4 The area enclosed by the double-dotted line V in the figure corresponds to a three-dimensional view of a vehicle seat (the main body of the seat slides in a position different from the R / M position).

[0026] Figure 7 It is shown Figure 5 and Figure 6 The disassembled and assembled diagram of the seats used in the vehicles.

[0027] Figure 8This is a perspective view showing a vehicle seat (the seat body slides in the R / M position) according to Embodiment 2 of the present invention.

[0028] Figure 9 This is a perspective view showing a vehicle seat (the seat body slides to a position different from the R / M position) according to Embodiment 2 of the present invention.

[0029] Figure 10 It is shown Figure 9 The disassembled and assembled diagram of the seats used in the vehicles. Detailed Implementation

[0030] Embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that in the drawings referred to below, the same or equivalent components are labeled with the same reference numerals. Additionally, sometimes the reference numeral for the component on the right side of the seat in a pair of left and right components is "R", and the reference numeral for the component on the left side of the seat is "L".

[0031] (Implementation Method 1)

[0032] Figure 1 This is a perspective view showing a vehicle seat according to Embodiment 1 of the present invention. Figure 2 It is shown Figure 1 A top-down view of the movement of the seats in the vehicle.

[0033] Reference Figure 1 and Figure 2 The vehicle seat 100 of this embodiment is mounted on a vehicle. The vehicle seat 100 is a driver's seat for the driver of the vehicle.

[0034] The vehicle seat 100 has a seat body 10, sliding rails 12 (12R, 12L) and a base plate 31.

[0035] The seat body 10 is the main body of a vehicle seat 100, including the seat cushion and seat back.

[0036] The seat body 10 has a seat cushion frame 16. The seat cushion frame 16 forms the skeleton of the seat cushion. The seat cushion frame 16 has side frames 17 (17R, 17L). The side frames 17 extend in the front-to-back direction. The side frames 17R and 17L are spaced apart from each other in the left-to-right direction. The side frames 17 may also have a lifting mechanism for raising and lowering the seat cushion.

[0037] The sliding rail 12 supports the seat body 10 so that it can slide in the front-to-back direction. The sliding rails 12R and 12L are spaced apart from each other in the left-to-right direction. The sliding rail 12R is located below the side frame 17R. The sliding rail 12L is located below the side frame 17L.

[0038] The sliding track 12 has a lower track 13 and an upper track 14. The lower track 13 extends in the front-rear direction. The lower track 13 is fixed to the floor of the vehicle. The upper track 14 is disposed on the upper surface of the lower track 13. The upper track 14 is slidably combined with the lower track 13 in the front-rear direction.

[0039] The base plate 31 is made of metal sheet. 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 mounted between the upper rails 14 of the sliding rails 12R and 12L in the left-right direction. The base plate 31 faces the vehicle's floor panel at intervals in the up-down direction. The seat body 10 is mounted on the base plate 31.

[0040] The seat body 10 can slide within a predetermined range in the front-to-back direction via the sliding track 12. The seat body 10 can slide between the F / M (forward) position and the R / M (backward) position. The F / M position corresponds to the front end of the predetermined range within which the seat body 10 can slide in the front-to-back direction, and the R / M position corresponds to the rear end of the predetermined range within the same range. Figure 1 and Figure 2 The image shows the seat body 10 in the case of sliding to the R / M position.

[0041] The seat body 10 is capable of performing a predetermined movement independent of its sliding movement in the fore-and-aft direction. In this embodiment, the seat body 10 is capable of rotating between the sitting position 10A and the alighting position 10B. The sliding movement and the rotating movement of the seat body 10 are not performed simultaneously.

[0042] The seat body 10 also has a first support frame 18, a second support frame 19, and a rotating plate 21.

[0043] The first support frame 18 and the second support frame 19 extend in the left-right direction. The first support frame 18 and the second support frame 19 are connected to the seat cushion frame 16 at both ends of their left-right extension. The first support frame 18 and the second support frame 19 are spaced apart from each other in the front-back direction.

[0044] The rotating plate 21 is disposed 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 is erected between the first support frame 18 and the second support frame 19 in the front-back direction.

[0045] The vehicle seat 100 also includes a connecting unit 23. The connecting unit 23 is disposed vertically between the base plate 31 and the rotating plate 21. The connecting unit 23 connects the base plate 31 and the rotating plate 21 in such a way 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 in such a way that the seat body 10 can rotate between the sitting position 10A and the alighting position 10B.

[0046] The vehicle is provided with an access hatch 132 for use when passengers (drivers) get on and off. The access hatch 132 is an opening on the side of the vehicle seat 100. The access hatch 132 is an opening in front of the pillar 131 disposed between the vehicle seat 100 and the rear seat of the vehicle seat 100.

[0047] Seating position 10A is the position of the seat body 10 selected when the occupant is driving the vehicle. When the seat body 10 is positioned in seating position 10A, the seat body 10 is directly opposite the steering wheel 134 of the vehicle in the fore-and-aft direction. The occupant seated in the seat body 10 faces forward.

[0048] The boarding / alighting position 10B is the position of the seat body 10 selected by the occupant when getting on or off the vehicle relative to the vehicle seat 100. When the seat body 10 is positioned in the boarding / alighting position 10B, the right front end of the seat body 10 protrudes outward through the boarding / alighting opening 132. The driver, seated in the seat body 10, faces diagonally forward to the right.

[0049] The seat body 10 moves forward from the seating position 10A towards the landing position 10B while rotating in an arc extending diagonally forward to the right. The seat body 10 moves backward from the landing position 10B towards the seating position 10A while rotating in an arc extending diagonally backward to the left. This rotation prevents interference between the seat body 10 and the support column 131 and allows the seat body 10 to move between the seating position 10A and the landing position 10B.

[0050] As an example, the connecting unit 23 includes: a guide member that linearly guides the rotating plate 21 in an inclined direction relative to the front-back and left-right directions; and a linkage mechanism that rotates the rotating plate 21 so that the orientation of the rotating plate 21 changes in the horizontal plane. The connecting unit 23 is manually operated, causing the seat body 10 to rotate by an external force applied by the occupant.

[0051] Figure 3 It is shown in Figure 1 A three-dimensional view of a vehicle seat as seen in the direction indicated by arrow III. Figure 4 Viewed from the bottom side Figure 1A 3D diagram of seats used in vehicles. (Refer to...) Figures 1 to 4 The vehicle seat 100 also has a locking mechanism 41. The locking mechanism 41 restricts the rotational movement of the seat body 10.

[0052] The locking mechanism 41 is mounted on the base plate 31. The locking mechanism 41 is mounted on the base plate 31 via a mounting plate 46. The locking mechanism 41 is mounted at the rear end of the base plate 31. The locking mechanism 41 is disposed between the base plate 31 and the rotating plate 21 in the vertical direction. The locking mechanism 41 has a pin member 42. The pin member 42 extends in the vertical direction. The pin member 42 is supported so that it can slide in its axial direction (vertical direction). A pin insertion hole 22 is provided in the rotating plate 21. The pin insertion hole 22 is formed by a through hole that penetrates the rotating plate 21 in the vertical direction. When the seat body 10 is positioned in the sitting position 10A, the pin insertion hole 22 is opposite to the pin member 42 in the vertical direction.

[0053] The locking mechanism 41 contains a spring mechanism and a drive mechanism. The spring mechanism applies a spring force to the pin member 42 to make the pin member 42 slide toward the pin insertion hole 22. The drive mechanism, under the tension force from the second wire 140 (described later), makes the pin member 42 slide in the direction of disengaging from the pin insertion hole 22.

[0054] By inserting the pin member 42 into the pin insertion hole 22 (locking action), the rotation of the seat body 10 from the seated position 10A to the alighting position 10B is restricted. By disengaging the pin member 42 from the pin insertion hole 22 (unlocking action), the rotation of the seat body 10 from the seated position 10A to the alighting position 10B is allowed.

[0055] The vehicle seat 100 also includes an operating unit 26. The operating unit 26 is operated by the occupant to unlock the locking mechanism 41. The operating unit 26 is manually operated by the occupant. The locking mechanism 41 unlocks by transmitting an operating force from the operating unit 26.

[0056] An operating unit 26 is provided on the seat body 10. The operating unit 26 is mounted on the seat cushion frame 16 (side frame 17). The operating unit 26 has a lever shape and is configured to rotate about a central axis 110 extending in the left-right direction. The operating unit 26 is rotated by a predetermined angle about the central axis 110 by the occupant through lever operation.

[0057] In this embodiment, when the seat body 10 slides to the R / M position, the operating force from the operating unit 26 is transmitted to the locking mechanism 41; when the seat body 10 slides to a position different from the R / M position, the operating force from the operating unit 26 is not transmitted to the locking mechanism 41. By allowing the seat body 10 to rotate only when it slides to the R / M position, interference between the seat body 10 and various structures around the dashboard, such as the steering wheel 134, can be avoided.

[0058] The mechanism for transmitting the operating force from the operating unit 26 toward the locking mechanism unit 41 will be described below.

[0059] Figure 5 It is shown by Figure 4 A three-dimensional view of a vehicle seat (with the seat body sliding to the R / M position) within the area enclosed by the double-dotted line V. Figure 6 It is shown that it is related to... Figure 4 The area enclosed by the double-dotted line V in the figure corresponds to a three-dimensional view of a vehicle seat (the seat body slides to a position different from the R / M position). Figure 7 It is shown Figure 5 and Figure 6 The disassembled and assembled diagram of the seats used in the vehicles.

[0060] Reference Figures 4 to 7 The vehicle seat 100 also has a first component 61, an intermediate component 81 and a second component 71.

[0061] The operating force from the operating section 26 is transmitted to the first component 61. The second component 71 transmits the operating force from the operating section 26 toward the locking mechanism section 41.

[0062] like Figure 5 As shown, when the seat body 10 slides to the R / M position, the intermediate member 81 is positioned at a first position 81A, engaging with the first member 61 and the second member 71, relative to the first member 61 and the second member 71. The intermediate member 81 transmits the operating force from the operating part 26 from the first member 61 to the second member 71. Figure 6 As shown, when the seat body 10 slides to a position different from the R / M position, the intermediate member 81 is positioned in a second position 81B that is not engaged with the first member 61 and the second member 71. The intermediate member 81 does not transmit the operating force from the operating part 26 from the first member 61 to the second member 71.

[0063] More specifically, the vehicle seat 100 also includes a first wire 120, a second wire 140, a first mounting bracket 66, a first center pin 67, and a first coil spring 76.

[0064] The first cable 120 extends between the operating section 26 and the first member 61. The first cable 120 is pulled toward the operating section 26 by the driver operating the operating section 26. The second cable 140 extends between the second member 71 and the locking mechanism 41. The locking mechanism 41 is unlocked by pulling the second cable 140 toward the second member 71.

[0065] The first component 61 and the second component 71 are mounted on the base plate 31. The first component 61 and the second component 71 are mounted on the base plate 31 via the first mounting bracket 66. When the seat body 10 slides, the first component 61 and the second component 71 become integral with the seat body 10 and slide in the front-back direction.

[0066] The first component 61 and the second component 71 are disposed vertically between the floor panel and the base plate 31 of the vehicle. The first component 61 and the second component 71 are disposed adjacent to the sliding rail 12 (sliding rail 12L) in the left-right direction.

[0067] The first component 61 and the second component 71 are arranged in a manner that allows them to rotate about a first central axis 210. The first central axis 210 extends in the vertical direction. The first component 61 and the second component 71 overlap each other in the axial direction of the first central axis 210. The second component 71 is disposed between the base plate 31 and the first component 61 in the axial direction of the first central axis 210.

[0068] The first center pin 67 extends axially in the first center shaft 210. The first center pin 67 is inserted into the first component 61 and the second component 71 axially in the first center shaft 210 and is connected to the first mounting bracket 66.

[0069] The first component 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 outward in the radial direction of the first central axis 210. The first claw portion 62 is composed of a plate that extends in the thickness direction in the vertical direction and parallel to the horizontal plane.

[0070] The first connecting portion 63 is configured to protrude outward in the radial direction of the first central axis 210 at a position offset from the first claw portion 62 in the circumferential direction relative to the first central axis 210. A first wire 120 is connected to the first connecting portion 63. The first wire 120 extends from the first connecting portion 63 in the circumferential direction along the first central axis 210. The first locking portion 64 is configured to protrude outward in the radial direction of the first central axis 210 at a position offset from the first claw portion 62 and the first connecting portion 63 in the circumferential direction relative to the first central axis 210, and bends at its protruding end toward the base plate 31.

[0071] The second component 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 outward in the radial direction of the first central axis 210 at a position offset from the first claw portion 62 in the axial and circumferential directions. The first claw portion 62 and the second claw portion 72 are spaced apart from each other in the circumferential direction of the first central axis 210. The second claw portion 72 is composed of a plate that extends in the thickness direction in the vertical direction and parallel to the horizontal plane.

[0072] The second connecting portion 73 is configured to protrude outward in the radial direction of the first central axis 210 at a position offset from the second claw portion 72 in the circumferential direction relative to the first central axis 210. A second wire 140 is connected to the second connecting portion 73. The second wire 140 extends from the second connecting portion 73 in the circumferential direction along the first central axis 210. The second locking portion 74 is configured to protrude outward in the radial direction of the first central axis 210 at a position offset from the second claw portion 72 and the second connecting portion 73 in the circumferential direction relative to the first central axis 210, and bends at its protruding end toward the base plate 31.

[0073] The first helical spring 76 is fitted onto the outer periphery of the first central pin 67. One end of the first helical spring 76 is secured by the first locking part 64, and the other end of the first helical spring 76 is secured by the second locking part 74. The first helical spring 76 is configured such that the circumferential elastic force of the first central shaft 210 acts on the first component 61 and the second component 71.

[0074] exist Figures 4 to 7 In the bottom view shown, the first component 61 is subjected to a clockwise force around the first central axis 210 by the elastic force of the first helical spring 76. The elastic force of the first helical spring 76 acting on the first component 61 corresponds to the tensile force that pulls the first wire 120 from the operating part 26 toward the first component 61. The second component 71 is subjected to a counterclockwise force around the first central axis 210 by the elastic force of the first helical spring 76. The elastic force of the first helical spring 76 acting on the second component 71 corresponds to the tensile force that pulls the second wire 140 from the locking mechanism part 41 toward the second component 71.

[0075] like Figure 6 As shown, the second claw portion 72 is disposed circumferentially between the first claw portion 62 and the first locking portion 64 on the first central shaft 210. The second claw portion 72 and the first locking portion 64 abut against each other on the first central shaft 210 by the elastic force of the first helical spring 76. A circumferential gap of the first central shaft 210 is provided between the second claw portion 72 and the first claw portion 62.

[0076] The vehicle seat 100 also has a second mounting bracket 86, a second center pin 88, and a second coil spring 83.

[0077] The intermediate component 81 is mounted on the lower rail 13 of the sliding rail 12 (12L). The intermediate component 81 is mounted on the lower rail 13 via the second mounting bracket 86. The intermediate component 81 remains stationary during the sliding motion of the seat body 10. As the seat body 10 slides, the relative positional relationship between the first component 61 and the second component 71 and the intermediate component 81 in the front-rear direction changes.

[0078] The intermediate component 81 is disposed between the vehicle's floor panel and base plate 31 in the vertical direction. The first component 61, the second component 71, and the intermediate component 81 are arranged in a straight line in the front-rear direction.

[0079] The intermediate member 81 is configured to rotate about the second central shaft 220. The second central shaft 220 extends in the vertical direction. The second central pin 88 extends along the shaft of the second central shaft 220. The second central pin 88 is inserted into the intermediate member 81 in the axial direction of the second central shaft 220 and is connected to the second mounting bracket 86.

[0080] The intermediate member 81 has a third claw portion 82. The third claw portion 82 is configured to protrude outward in the radial direction of the second central axis 220 and bend at its protruding end toward the base plate 31.

[0081] The second mounting bracket 86 has an anti-rotation portion 87. The anti-rotation portion 87 is configured to protrude outward in the radial direction of the second central axis 220 at a position offset from the third claw portion 82 in the circumferential direction, and bend at its protruding end toward the base plate 31.

[0082] The second helical spring 83 is suspended between the intermediate member 81 and the second mounting bracket 86. The second helical spring 83 is configured such that the circumferential elastic force of the second central shaft 220 acts on the intermediate member 81. Figures 4 to 7 In the bottom view shown, the intermediate member 81 is subjected to a clockwise force around the second central axis 220 by the elastic force of the second helical spring 83. The third claw 82 and the anti-rotation part 87 abut against each other in the circumferential direction of the second central axis 220 by the elastic force of the second helical spring 83.

[0083] like Figure 5 As shown, when the seat body 10 slides to the R / M position, the intermediate member 81 is positioned 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 vertical direction. The intermediate member 81 is axially opposed to the first member 61 and the second member 71 along the first central axis 210 and the second central axis 220. The intermediate member 81 is positioned between the vehicle floor panel and the first member 61.

[0084] The third claw 82 is inserted between the first claw 62 and the second claw 72 in the circumferential direction of the first central axis 210 (second central axis 220), and the intermediate member 81 engages with the first member 61 and the second member 71.

[0085] When the operating unit 26 is operated by lever, the first wire 120 is stretched toward the operating unit 26, causing the first member 61 to rotate counterclockwise around the first central axis 210. As the first member 61 rotates, the first claw 62 presses the second claw 72 of the second member 71 circumferentially toward the first central axis 210 via the third claw 82 of the intermediate member 81, causing the second member 71 to rotate counterclockwise around the first central axis 210. Thus, 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 stretched toward the second member 71, thereby unlocking the locking mechanism 41.

[0086] like Figure 6 As shown, when the seat body 10 slides to a position different from the R / M position, the intermediate member 81 is positioned at a second position 81B relative to the first member 61 and the second member 71. The intermediate member 81 (second central axis 220) is separated from the first member 61 and the second member 71 (first central axis 210) in the front-rear direction. The intermediate member 81 (second central axis 220) is positioned rearward than the first member 61 and the second member 71 (first central axis 210).

[0087] The intermediate member 81 disengages from the first claw portion 62 and the second claw portion 72 in the circumferential direction of the first central axis 210, thereby not engaging with the first member 61 and the second member 71.

[0088] When the operating part 26 is operated by lever, the first wire 120 is stretched toward the operating part 26, causing the first member 61 to rotate counterclockwise around the first central axis 210. Since the first claw 62 and the second claw 72 are offset axially from the first central axis 210, the first claw 62 does not press against the second claw 72 circumferentially around the first central axis 210. Therefore, the intermediate member 81 does not transmit the operating force from the operating part 26 from the first member 61 to the second member 71. Because the second member 71 remains stationary, the locking mechanism 41 does not unlock.

[0089] In this embodiment, the first component 61 and the second component 71 are mounted on the base plate 31 on which the seat body 10 is mounted, and the intermediate component 81 is mounted on the lower rail 13 fixed to the floor panel of the vehicle. With this structure, as the seat body 10 slides, the positional relationship between the first component 61, the second component 71 and the intermediate component 81 in the front-rear direction changes. Therefore, a structure in which the intermediate component 81 can move relative to the first component 61 and the second component 71 between a first position 81A and a second position 81B can be obtained with a simple construction.

[0090] Furthermore, in this embodiment, when the intermediate member 81 is positioned at the first position 81A, the first central axis 210 and the second central axis 220 extend in a straight line in the vertical direction. With this structure, when the first member 61, the second member 71, and the intermediate member 81 rotate around the first central axis 210 and the second central axis 220, the positional relationship between the first claw portion 62 and the second claw portion 72 and the third claw portion 82 inserted between the first claw portion 62 and the second claw portion 72 can be maintained. Thus, the first member 61, the second member 71, and the intermediate member 81 can be compactly configured.

[0091] Summarizing the above description of the structure of the vehicle seat 100 according to Embodiment 1 of the present invention, the vehicle seat 100 of this embodiment includes: a seat body 10 capable of sliding and rotating as a predetermined action independent of the sliding action; a locking mechanism 41 for restricting the rotational action of the seat body 10; an operation unit 26 operated by an occupant to unlock the locking mechanism 41; a first member 61 that transmits operating force from the operation unit 26; a second member 71 that transmits the operating force toward the locking mechanism 41; and an intermediate member 8. 1. When the seat body 10 slides to the R / M position, which is a specific position, it is positioned at a first position 81A that engages with the first member 61 and the second member 71, and the operating force is transmitted from the first member 61 to the second member 71. When the seat body 10 slides to a position different from the R / M position, it is positioned at a second position 81B that does not engage with the first member 61 and the second member 71, and the operating force is not transmitted from the first member 61 to the second member 71.

[0092] According to the vehicle seat 100 of Embodiment 1 of the present invention configured in this way, the locking mechanism 41 can be unlocked only when the seat body 10 slides to the R / M position.

[0093] It should be noted that the specific position where the locking mechanism can perform the unlocking action in this invention is not particularly limited. For example, it can be the F / M position, or, in the case that the sliding direction of the seat body in this invention is left-right, it can be the position of one end in the left-right direction. The prescribed actions that the seat body in this invention can perform are not limited to rotational actions; for example, it can also be a space-lifting action in which the seat body rises toward the side of the vehicle.

[0094] (Implementation Method 2)

[0095] Figure 8 This is a perspective view showing a vehicle seat (the seat body slides to the R / M position) according to Embodiment 2 of the present invention. Figure 9 This is a perspective view showing a vehicle seat (the seat body slides to a position different from the R / M position) according to Embodiment 2 of the present invention. Figure 10 It is shown Figure 9 The disassembled and assembled diagram of the seats used in the vehicles.

[0096] The vehicle seat of this embodiment has a substantially the same structure as the vehicle seat 100 of Embodiment 1. Hereinafter, the repeated structures will not be described again.

[0097] Reference Figures 8 to 10 In this embodiment, the vehicle seat 100 has a first component 161 instead of the first component 61 in embodiment 1, a second component 171 instead of the second component 71 in embodiment 1, and an intermediate component 181 instead of the intermediate component 81 in embodiment 1.

[0098] The first component 161 has a first gear portion 162 instead of the first claw portion 62 in Embodiment 1. The first gear portion 162 is configured such that a plurality of teeth are arranged circumferentially on the first central shaft 210. The first gear portion 162 is composed of a plate that extends in the thickness direction in the vertical direction and parallel to the horizontal plane.

[0099] The second member 171 has a second gear portion 172 to replace the second claw portion 72 in Embodiment 1. The second gear portion 172 is configured such that a plurality of teeth are arranged circumferentially on the first central shaft 210 at a position offset from the first gear portion 162 in the axial direction of the first central shaft 210. 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.

[0100] The intermediate member 181 has a third gear portion 182 instead of the third pawl portion 82 in Embodiment 1. The third gear portion 182 is configured to have a plurality of teeth arranged circumferentially on the second central shaft 220. The third gear portion 182 is arranged opposite to the first gear portion 162 and the second gear portion 172 in the front-rear direction. The range of the third gear portion 182 in the axial direction of the second central shaft 220 spans the range of the first gear portion 162 and the second gear portion 172 in the axial direction of the first central shaft 210.

[0101] like Figure 8 As shown, when the seat body 10 slides to the R / M position, the intermediate member 181 engages with the first gear 162 and the second gear 172 via the third gear 182, thereby engaging with the first member 161 and the second member 171. At this time, the intermediate member 181 transmits the operating force from the operating part 26 from the first member 161 to the second member 171, thereby unlocking the locking mechanism 41.

[0102] like Figure 9 As shown, when the seat body 10 slides to a position different from the R / M position, the intermediate member 181 disengages from the first gear 162 and the second gear 172 via the third gear 182, thereby not engaging with the first member 161 and the second member 171. At this time, the intermediate member 181 does not transmit the operating force from the operating part 26 from the first member 161 to the second member 171, thereby the locking mechanism 41 does not perform an unlocking action.

[0103] The vehicle seat of Embodiment 2 of the present invention, configured in this way, can achieve the same effect as the vehicle seat 100 of Embodiment 1.

[0104] Embodiments of the present invention have been described, but should be considered illustrative rather than limiting in all respects. The scope of the invention is set forth in the claims and is intended to include all modifications within the same meaning and scope as the claims.

Claims

1. A seat for a vehicle, comprising: The seat body is capable of sliding motion and predetermined motions independent of the sliding motion; A locking mechanism is used to restrict the prescribed movements of the seat body; The operating unit is operated by the occupant to unlock the locking mechanism. The first component is transmitted the operating force from the operating part; The second component transmits the operating force toward the locking mechanism. The intermediate component, when the seat body slides to a specific position, is configured in a first position engaging with the first and second components relative to the first and second components, transmitting the operating force from the first component to the second component; when the seat body slides to a position different from the specific position, it is configured in a second position not engaging with the first and second components relative to the first and second components, not transmitting the operating force from the first component to the second component. The lower track is fixed to the floor of the vehicle; The upper track is assembled to the lower track in a manner that allows it to slide relative to the lower track; as well as The base plate is connected to the upper rail and supports the seat body. The first component and the second component are mounted on the base plate. The intermediate component is installed on the lower track.

2. A seat for a means of transportation, comprising: The seat body is capable of sliding motion and predetermined motions independent of the sliding motion; A locking mechanism is used to restrict the prescribed movements of the seat body; The operating unit is operated by the occupant to unlock the locking mechanism. The first component is transmitted the operating force from the operating part; The second component transmits the operating force toward the locking mechanism. as well as The intermediate component, when the seat body slides to a specific position, is positioned in a first position engaged with the first and second components, transmitting the operating force from the first component to the second component. When the seat body slides to a position different from the specific position, it is positioned in a second position not engaged with the first and second components, not transmitting the operating force from the first component to the second component. Each component of the first component and the second component is arranged in a manner that allows them to rotate about a first central axis. The intermediate component is configured to rotate about the second central axis. The first component has a first claw portion protruding outward in a radial direction toward the first central axis. The second member has a second claw portion that protrudes outward in a radial direction toward the first central axis at a position offset from the first claw portion in both the axial and circumferential directions relative to the first claw portion. The intermediate member has a third claw portion that, when positioned in the first position, is inserted circumferentially between the first claw portion and the second claw portion on the first central axis.

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

4. A seat for a means of transportation, comprising: The seat body is capable of sliding motion and predetermined motions independent of the sliding motion; A locking mechanism is used to restrict the prescribed movements of the seat body; The operating unit is operated by the occupant to unlock the locking mechanism. The first component is transmitted the operating force from the operating part; The second component transmits the operating force toward the locking mechanism. as well as The intermediate component, when the seat body slides to a specific position, is positioned in a first position engaged with the first and second components, transmitting the operating force from the first component to the second component. When the seat body slides to a position different from the specific position, it is positioned in a second position not engaged with the first and second components, not transmitting the operating force from the first component to the second component. Each component of the first component and the second component is arranged in a manner that allows them to rotate about a first central axis. The intermediate component is configured to rotate about the second central axis. The first component has a first gear portion with a plurality of teeth arranged circumferentially on the first central axis. The second component has a second gear portion with a plurality of teeth arranged circumferentially on the first central axis at a position offset from the first gear portion in the axial direction relative to the first gear portion. The intermediate member has a third gear portion that meshes with the first gear portion and the second gear portion when disposed in the first position and has a plurality of teeth arranged circumferentially on the second central axis.

5. A vehicle seat according to any one of claims 1 to 4, The seat body is capable of sliding within a specified range in the front-to-back direction. The specific location is the rear end of the specified range.

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