Vehicle seat

Abstract

To provide a vehicle seat which enables smooth switching operation of an armrest and a drawer member.SOLUTION: A vehicle seat S1 includes: a seat body Sa; an armrest 10; a switching device 40 which switches the armrest between a normal position and a movable position relative to the seat body; and a drawer member 30 which may be deployed from the armrest. The drawer member 30 is configured to be switched between a storage position where the drawer member 30 is stored in the armrest 10 and a deployment position where the drawer member 30 is deployed from the armrest. The switching device 40 has: a first lock member which locks the armrest when the armrest 10 is in the movable position; a second lock member which locks the drawer member when the drawer member 30 is in the deployment position; and a control lever 50 which is connected to the first lock member and the second lock member and operated to release lock states of the first lock member and the second lock member.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a vehicle seat, and more particularly to a vehicle seat including a seat body and an armrest provided on a side portion of the seat body.

Background Art

[0002] Conventionally, a vehicle seat including a seat back, an armrest rotatably attached to the seat back, and a table housed inside the armrest is known. By pulling out the table from the armrest, a passenger located behind the vehicle seat can use the table.

[0003] For example, in the vehicle seats of Patent Documents 1 and 2, the armrest can be switched between a normal position and a rotated position rotated rearward from the normal position, and can be fixed at the rotated position. Also, the table can be switched between a storage position and a deployed position deployed from the storage position, and can be fixed at the deployed position.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in vehicle seats such as those of Patent Documents 1 and 2, it has been required to perform the switching operation of the armrest and the switching operation of the drawer member (table) housed in the armrest more smoothly. For example, when rotating the armrest to deploy the drawer member, it has been required to smoothly perform the fixing operation of the armrest and the fixing operation of the drawer member. That is, if the armrest and the drawer member cannot be smoothly fixed, there is a risk that the drawer member will be unintentionally deployed when the armrest is being rotated.

[0006] An object of the present invention is to provide a vehicle seat capable of more smoothly performing the switching operation of the armrest and the switching operation of the drawer member housed in the armrest than in the prior art.

Means for Solving the Problems

[0007] According to the vehicle seat of the present invention, the above problem is solved by comprising a seat body, an armrest provided on a side portion of the seat body, a switching device for switching the armrest between a normal position and a moving position moved from the normal position with respect to the seat body, and a drawer member attached to be deployable from the armrest. The drawer member is configured to be switchable between a storage position stored in the armrest and a deployed position deployed from the armrest. The switching device has a first lock member for locking the movement of the armrest when the armrest is in the moving position, a second lock member for locking the movement of the drawer member when the drawer member is in the deployed position, and an operation member connected to each of the first lock member and the second lock member and operated to release the locked state of the first lock member and the locked state of the second lock member. With the above configuration, a vehicle seat capable of more smoothly performing the switching operation of the armrest and the switching operation of the drawer member housed in the armrest than in the prior art can be realized. Specifically, in the vehicle seat, the operation member is connected to each of the first locking member and the second locking member, and is operated to release the locked state of the first locking member and the locked state of the second locking member. By using the operation member, the locked state of each of the first locking member and the second locking member can be released. Therefore, the switching operation of the armrest, the switching operation of the drawer member, and the locking and unlocking of both can be smoothly performed. As an example, the locking operation (unlocking operation) of the armrest and the drawer member can be performed with one operation member.

[0008] At this time, the switching device includes a first biasing member that biases the first locking member from the unlocked state to the locked state, and a second biasing member that biases the second locking member from the unlocked state to the locked state. The switching device moves the first locking member biased by the first biasing member from the locked state to the unlocked state in response to the operation amount of the operation member, and moves the second locking member biased by the second biasing member from the locked state to the unlocked state in response to the operation amount of the operation member. With the above configuration, for example, the first locking member and the second locking member can be gradually moved from the locked state to the unlocked state in response to the operation amount of the operation member.

[0009] At this time, the operation member is attached so as to be rotatable between a first rotation position and a second rotation position with respect to the armrest. The switching device moves one of the first locking member and the second locking member from the locked state to the unlocked state in accordance with the operation of the operation member when the operation member is in the first rotation position, and moves the other or both of the first locking member and the second locking member from the locked state to the unlocked state in accordance with the operation of the operation member when the operation member is in the second rotation position. With the above configuration, the locked state of the first locking member or the locked state of the second locking member can be released according to the rotation position of the operation member.

[0010] At this time, the switching device includes a linear first connecting member that connects the operating member and the first locking member, and a linear second connecting member that connects the operating member and the second locking member and has a length different from that of the first connecting member. The switching device may release the locked state of the first locking member and the locked state of the second locking member by pulling the first connecting member and the second connecting member as the operating member is operated. With the above configuration, it is possible to properly use the unlocking of the first locking member and the unlocking of the second locking member according to the operation amount (pulling operation amount) of the operating member.

[0011] At this time, the operating member is an operating lever, and the operating lever has a lever operating portion operated by an occupant and a lever support portion inserted into the inside of the armrest and supported by an armrest frame. The armrest frame is formed with a first through hole and a second through hole that penetrate in the longitudinal direction of the operating lever and allow the lever support portion to pass through. When the operating member is in the reference position, the switching device holds the locked states of the first locking member and the second locking member by the lever support portion abutting against the armrest frame. When the operating member is in the first rotation position, the lever support portion passes through the first through hole as the operating member is operated, thereby moving the first locking member to the unlocked state. When the operating member is in the second rotation position, the lever support portion passes through the second through hole as the operating member is operated, thereby moving the first locking member and the second locking member to the unlocked state. With the above configuration, by using one operating member, it is possible to unlock the first locking member and the second locking member according to the rotation position of the operating member. Therefore, it is possible to prevent the pulling member from being unintentionally deployed from the armrest.

[0012] At this time, the switching device includes a first connection member that connects the operation member and the first lock member, and a second connection member that connects the operation member and the second lock member. The operation member is an operation lever, and the operation lever has a lever operation portion that is operated by an occupant, and a lever support portion that is inserted into the inside of the armrest and supported by an armrest frame. A first engaging member is attached to one end of the first connection member, and a second engaging member is attached to one end of the second connection member. When the operation member is in the first rotation position and the lever support portion is engaged with the first engaging member, the switching device moves the first lock member from the locked state to the unlocked state in accordance with the operation of the operation member. When the operation member is in the second rotation position and the lever support portion is engaged with the second engaging member, it is preferable that the switching device moves the second lock member from the locked state to the unlocked state in accordance with the operation of the operation member. With the above configuration, by using one operation member, it is possible to unlock the first lock member and unlock the second lock member according to the rotation position of the operation member.

[0013] At this time, the switching device includes a rotation shaft that rotatably attaches the armrest to the seat body. The first lock member is provided inside the armrest, and it is preferable that the first lock member is a lock pin that engages with a lock groove formed on the outer surface of the rotation shaft. With the above configuration, the rotation operation of the armrest can be locked or unlocked with a simple structure.

[0014] At this time, the lock groove is formed in an arc shape centered on the axis of the rotation shaft and is provided so as to pass above the axis. The lock pin moves along the lock groove in a state of being engaged with the lock groove as the armrest is rotated, and it is preferable that a stepped portion is formed at the upper end portion of the lock groove. As described above, by forming a stepped portion in the locking groove, it is possible to suppress the armrest from rotating vigorously from the normal position to the moving position, and the occupant can stably move the armrest. For example, it is possible to temporarily stop the armrest at a position facing upward.

[0015] At this time, the locking groove is formed in an arc shape centered on the axis of the rotation shaft, and has a first groove portion passing above the axis, and a second groove portion continuously formed at the rear end portion of the first groove portion and extending forward from the rear end portion of the first groove portion toward the axis. When the armrest is in the moving position, the switching device preferably locks the movement of the armrest by engaging the locking pin with the second groove portion. With the above configuration, when the locking pin engages with the second groove portion, that is, when the armrest is in the moving position, the armrest can be preferably locked.

[0016] At this time, the switching device preferably includes a first biasing member that biases the first locking member from the unlocked state to the locked state, and a second biasing member that biases the second locking member from the unlocked state to the locked state and has a biasing force different from that of the first biasing member. Also, the biasing force of the second biasing member is preferably stronger than that of the first biasing member. With the above configuration, according to the operation amount of pulling the operation member (according to the strength of the pulling force), the unlocking of the armrest and the unlocking of the drawer member can be performed. For example, by weakly pulling the operation member, the lock of the armrest can be released, and by strongly pulling the operation member, the lock of the drawer member can be released.

[0017] At this time, the drawer member is housed in a storage recess provided in the armrest. The switching device is provided on the armrest and includes a sliding member that slidably supports the drawer member, and a drawer biasing member that biases the drawer member from the storage position to the deployment position. The drawer member is preferably pulled out from the storage position to the deployment position when the second locking member is unlocked. With the above configuration, the drawer member can be automatically deployed as the locking of the drawer member is released.

[0018] At this time, the seat body has a seat cushion and a seat back, the armrest is rotatably attached to the back frame of the seat back, and the drawer member is preferably a table that can be pulled out from the armrest or a drawer that can be pulled out from the armrest and can accommodate the object to be accommodated. With the above configuration, the occupant can smoothly pull out the table (drawer) stored in the armrest and use the table (drawer).

Advantages of the Invention

[0019] According to the present invention, a vehicle seat capable of smoothly performing the switching operation of the armrest and the switching operation of the drawer member stored in the armrest can be realized. Specifically, the switching operation of the armrest, the switching operation of the drawer member, and the locking and unlocking of both can be smoothly performed. Further, according to the present invention, for example, the first locking member and the second locking member can be gradually moved from the locked state to the unlocked state corresponding to the operation amount of the operation member. Further, according to the present invention, the locked states of the first locking member and the second locking member can be released according to the rotation position of the operation member. Further, according to the present invention, the unlocking of the first locking member and the unlocking of the second locking member can be properly used according to the pulling operation amount of the operation member. Further, according to the present invention, by using one operation member, the unlocking of the first locking member and the unlocking of the second locking member can be performed according to the rotation position of the operation member. Further, according to the present invention, the rotation operation of the armrest can be locked or unlocked with a simple structure. Further, according to the present invention, the occupant can stably move the armrest. According to the present invention, unlocking of the armrest and unlocking of the drawer member can be performed according to the amount of operation of pulling the operation member. According to the present invention, the drawer member can be automatically deployed as the drawer member is unlocked. According to the present invention, an occupant can smoothly pull out the table (drawer) stored in the armrest and use the table.

Brief Description of Drawings

[0020]

Figure 1

Figure 2

Figure 3A

Figure 3B

Figure 4A

Figure 4B

Figure 5A

Figure 5B

Figure 6A

Figure 6B

Figure 7A

Figure 7B

Figure 8

Figure 9A

Figure 9B

Figure 10A

Figure 10B

Figure 11A

Figure 11B

Figure 11C

Figure 12

Figure 13A

Figure 13B

Figure 14A

Figure 14B

Figure 15

Figure 16A

Figure 16B

Figure 16C

Figure 17A

Figure 17B

Figure 17C

Figure 18

Figure 19A

Figure 19B

Figure 20A

Figure 20B

Mode for Carrying Out the Invention

[0021] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 20B. This embodiment relates to a "vehicle seat" that enables smooth switching operations of an armrest and a drawer member stored in the armrest. Note that, for the seat back (headrest) of the vehicle seat, the side where the seated person sits is the front side (frontward side) of the seat.

[0022] <First Embodiment> First, the vehicle seat S1 of the first embodiment will be described with reference to FIGS. 1 to 7B. As shown in FIG. 1, the vehicle seat S1 is a vehicle seat, which is a front seat or a middle seat arranged at the front position of the vehicle. Note that the vehicle seat S1 may be a rear seat.

[0023] As shown in FIGS. 1 and 2, the vehicle seat S1 is a seat that can be switched between a "normal position" of the armrest 10 with respect to the seat body Sa and a "moved position (rotated position)" where the armrest 10 is moved rearward from the normal position. Also, the vehicle seat S1 is a seat that can switch the drawer member 30 inside the armrest 10 between a "stored position" where the drawer member 30 is stored in the armrest 10 and a "deployed position" where the drawer member 30 is deployed from the armrest 10. In the vehicle seat S1, by operating the operation lever 50 by the occupant seated on the seat body Sa, both the switching operation of the armrest 10 and the switching operation of the drawer member 30 can be performed.

[0024] The vehicle seat S1 includes a seat body Sa having a seat cushion 1, a seat back 2, and a headrest 3, an armrest 10 attached to a side portion of the seat back 2, a drawer member 30 attached inside the armrest 10, and a switching device 40 that rotatably connects the armrest 10 to the seat back 2 and also deployably connects the drawer member 30 to the armrest 10. The switching device 40 includes an operation lever 50 for performing the switching operations of the armrest 10 and the drawer member 30. The vehicle seat S1 further includes a reclining device that rotatably connects the seat back 2 to the seat cushion 1, a height link device that vertically connects the seat body Sa to the vehicle floor, and a rail device that supports the seat body Sa so as to be movable back and forth with respect to the vehicle floor.

[0025] As shown in FIG. 1, the seat cushion 1 is a seating portion that supports the seated person from below, and includes a cushion frame 1a serving as a skeleton, a pad material 1b placed on the cushion frame 1a, and a skin material 1c covering the cushion frame 1a and the pad material 1b. The seat back 2 is a backrest portion that supports the seated person from behind, and includes a back frame 2a serving as a skeleton, a pad material 2b, and a skin material 2c. The headrest 3 is a head portion that supports the head of the seated person from behind.

[0026] As shown in FIGS. 1 to 4B, the armrest 10 is a member that supports the arm of the seated person from below, and includes an armrest frame 20 serving as a skeleton, a pad material 10a placed on the armrest frame 20, and a skin material 10b covering the armrest frame 20 and the pad material 10a. The armrest 10 is rotatably attached to the seat back 2 (back frame 2a) via a switching device 40 (rotation shaft 41). When the armrest 10 is in the "normal position" shown in FIG. 1, the armrest 10 is used by the occupant seated on the vehicle seat S1 to support the arm of the occupant. When the armrest 10 is in the "moved position" shown in FIG. 2, the armrest 10 is used by a second occupant seated at a position behind the vehicle seat S1. For example, the second occupant can use the armrest 10 and the drawer member 30 as a table.

[0027] As shown in FIGS. 3A and 4A, the armrest frame 20 is also used as a frame that supports the drawer member 30 and the switching device 40 assembled inside the armrest 10. Specifically, the armrest frame 20 includes a shaft support frame 21 that supports the rotation shaft 41 of the switching device 40, a lever support frame 22 that supports the operation lever 50, a wire support frame 23 that supports the connection wires 61 and 71, and a table support frame 24 that supports the drawer member 30.

[0028] As shown in FIGS. 1 to 4B, the drawer member 30 is a table that can be pulled out from the armrest 10 and is used by a second occupant seated at a position behind the vehicle seat S1. Note that the drawer member 30 may be a drawer that can be pulled out from the armrest 10 and can accommodate the object to be accommodated.

[0029] The drawer member 30 is attached to be slidable outward in the seat width direction from the side surface of the armrest 10. As shown in FIGS. 1 and 2, the drawer member 30 can be switched between a "storage position" stored in the storage recess 11 formed on the outer surface of the armrest 10 (armrest frame 20) and an "expanded position" pulled out straight from the armrest 10. The drawer member 30 is configured to be switchable by the switching device 40, and when the lock is released with the operation of the operation lever 50, it is expanded to the "expanded position".

[0030] As shown in FIGS. 3B and 4B, the drawer member 30 includes a plate-shaped drawer body 31, a plurality of lock grooves 32 formed on the upper surface of the drawer body 31 and arranged at intervals in the seat width direction, and left and right spring holding portions 33 formed at both ends in the length direction of the drawer body 31 and holding the drawer biasing spring 81. Note that by adopting the locking groove 32, the appearance of the surface of the drawer member 30 can be improved. On the other hand, by using a locking hole (through hole) instead of the locking groove 32, the engaging force can be increased. The drawer member 30 is supported by the armrest frame 20 (table support frame 24) in a state of being biased from the "storage position" to the "deployed position" by the drawer biasing spring 81.

[0031] As shown in FIGS. 3A to 4B, the switching device 40 has a function of switching the armrest 10 between the "normal position" and the "moved position" with respect to the seat body Sa, and a function of switching the drawer member 30 between the "storage position" and the "deployed position" with respect to the armrest 10. Specifically, the switching device 40 is a device that locks the movement of the armrest 10 and the movement of the drawer member 30, and unlocks the movement of the armrest 10 and the movement of the drawer member 30 in accordance with the operation of the operation lever 50. In addition, with the switching device 40, the unlocking operation of the armrest 10 and the drawer member 30 can be performed with one operation lever 50.

[0032] Specifically, the switching device 40 includes a rotation shaft 41 that rotatably attaches the armrest 10 to the seat back 2, an operation lever 50 that is operated to release the locked states of the armrest 10 and the drawer member 30, a first lock pin 60 that locks the movement of the armrest 10, and a second lock pin 70 that locks the movement of the drawer member 30. In addition, the switching device 40 includes a first connection wire 61 that connects the operation lever 50 and the first lock pin 60, a first biasing spring 62 that biases the first lock pin 60 to the locked state, a second connection wire 71 that connects the operation lever 50 and the second lock pin 70, and a second biasing spring 72 that biases the second lock pin 70 to the locked state. On the outer surface of the rotation shaft 41, a first lock groove 41b, a second lock groove 41c, and a third lock groove 41d are formed along the circumference centered on the axis 41a of the rotation shaft 41.

[0033] As shown in FIGS. 3A and 4A, the operation lever 50 is attached to the front portion of the armrest 10 and is arranged to protrude outward from the armrest 10. The operation lever 50 includes a lever operation portion 51 that protrudes forward from the armrest 10 and is operated by an occupant, a lever extension portion 52 that is inserted into the armrest 10 from the lever operation portion 51, a lever support portion 53 that is provided at the extended end portion of the lever extension portion 52 and is supported by the armrest frame 20 (lever support frame 22), and a lever biasing spring 54 that biases the lever operation portion 51 toward the armrest 10 in the longitudinal direction of the armrest 10. When the operation lever 50 is pulled forward against the biasing force of the lever biasing spring 54, the switching device 40 moves the first lock pin 60 and the second lock pin 70 from the "lock position (locked state)" to the "unlock position (unlocked position)".

[0034] As shown in FIGS. 3A to 4B, the first lock pin 60 is a locking member that locks the rotation of the armrest 10 by engaging with the lock grooves 41b, 41c, and 41d formed on the outer surface of the rotation shaft 41. The first lock pin 60 is fixed to the extended end portion of the first connection wire 61 and is switchable between the "lock position (locked state)" engaged with the lock grooves 41b to 41d and the "unlock position (unlocked state)" disengaged from the lock grooves 41b to 41d. The first lock pin 60 is biased by the first biasing spring 62 and is arranged at the "lock position" engaged with the lock grooves 41b to 41d. Note that the first lock pin 60 engages with the first lock groove 41b when the armrest 10 is in the "normal position" shown in FIG. 3A, engages with the second lock groove 41c when the armrest 10 is in an "upper position" (not shown), and engages with the third lock groove 41d when the armrest 10 is in the "movement position" shown in FIG. 4A.

[0035] The first connecting wire 61 is a linear connecting member that extends in the front-rear direction of the seat along the inside of the wire support frame 23, and connects the operation lever 50 (lever support portion 53) and the first locking pin 60. As the operation lever 50 is pulled, the first connecting wire 61 pulls the first locking pin 60 forward from the "locking position" to the "unlocking position". When the first locking pin 60 moves to the "unlocking position", the armrest 10 can rotate about the rotation axis 41.

[0036] As shown in FIGS. 3A to 4B, the second locking pin 70 is a locking member that locks the sliding movement of the drawer member 30 by engaging with a locking groove 32 formed on the upper surface of the drawer member 30. The second locking pin 70 is fixed to the extending end of the second connecting wire 71, and can be switched between the "locking position" engaged with the locking groove 32 and the "unlocking position" disengaged from the locking groove 32. The second locking pin 70 is biased by the second biasing spring 72 and is arranged in the "locking position" engaged with the locking groove 32. Note that the second locking pin 70 engages with the leftmost locking groove 32 when the drawer member 30 is in the "stored position" shown in FIG. 3B, and engages with the rightmost locking groove 32 when the drawer member 30 is in the "deployed position" shown in FIG. 4B.

[0037] The second connecting wire 71 is a linear connecting member that extends in the front-rear direction and downward along the inside of the wire support frame 23, and connects the operation lever 50 (lever support portion 53) and the second locking pin 70. Specifically, the second connecting wire 71 extends rearward from the operation lever 50, is guided by the guide pin 73, bends downward, and is connected to the second locking pin 70.

[0038] As the operation lever 50 is pulled, the second connecting wire 71 pulls the second locking pin 70 upward from the "locking position" to the "unlocking position". When the second locking pin 70 moves to the "lock release position", the drawer member 30 can slide outward in the seat width direction from the armrest 10. In addition, by engaging the second locking pin 70 with an arbitrary locking groove 32, the deployment length of the drawer member 30 can be adjusted, and then the drawer member 30 can be fixed.

[0039] With the above configuration, the switching device 40 moves the first locking pin 60 biased by the first biasing spring 62 from the "locked state" to the "lock release state" in response to the operation amount of the operation lever 50, and can move the second locking pin 70 biased by the second biasing spring 72 from the "locked state" to the "lock release state". That is, the unlocking operation of the armrest 10 and the drawer member 30 can be performed with one operation lever 50. In addition, the switching device 40 releases the locks of the first locking pin 60 and the second locking pin 70 almost simultaneously with the operation of the operation lever 50. That is, the first locking pin 60 and the second locking pin 70 disengage from the locking groove 41b and the locking groove 32 at almost the same timing.

[0040] In the above configuration, as shown in FIGS. 4A and 4B, the switching device 40 is provided inside the armrest 10, and further includes a sliding member 80 that slidably supports the drawer member 30, and a drawer biasing spring 81 that biases the drawer member 30 from the "storage position" to the "deployment position". The sliding member 80 is, for example, a sliding rail (sliding guide), and is provided at both ends in the length direction of the drawer member 30 to slide the drawer member 30. By doing so, the drawer member 30 can be smoothly and automatically deployed as the locking of the drawer member 30 is released.

[0041] In the case of the vehicle seat S1, a seat can be realized that can smoothly perform the switching operation of the armrest 10 and the switching operation of the drawer member 30.

[0042] <<Modification Example 1>> A first modification example of the vehicle seat S1 will be described with reference to FIGS. 5A and 5B. FIG. 5A is a view showing a state in which the armrest 10 is in the "movable position" and the drawer member 30 is in the "stored position". FIG. 5B is a view showing a state in which the drawer member 30 is in the "deployed position". In the first modification example, a first drawer member 30A and a second drawer member 30B are stored inside the armrest 10, and each can be deployed outward from the armrest 10 in the seat width direction.

[0043] The first drawer member 30A and the second drawer member 30B are arranged in a vertically overlapping position when in the "stored position", and are locked by second lock pins 70A and 70B, respectively. The switching device 40 releases the locked state of the second lock pins 70A and 70B by pulling the second connection wires 71A and 71B by operating the operation lever 50. With the unlocking of the second lock pins 70A and 70B, the first drawer member 30A and the second drawer member 30B are deployed from the armrest 10 in opposite directions. With the above configuration, the occupant can suitably use the armrest 10 and the drawer members 30A and 30B as a table. Alternatively, the drawer members 30A and 30B can be used as drink holders.

[0044] <<Modification Example 2>> A second modification example of the vehicle seat S1 will be described with reference to FIGS. 6A and 6B. FIG. 6A is a view showing a state in which the armrest 10 is in the "movable position" and the drawer member 30 is in the "stored position". FIG. 6B is a view showing a state in which the drawer member 30 is in the "deployed position". In the second modification example, a first drawer member 30A and a second drawer member 30B are stored inside the armrest 10, and each can be deployed outward from the armrest 10 in the seat width direction.

[0045] The first drawer member 30A and the second drawer member 30B are arranged side by side left and right when in the "storage position", and are locked by the second lock pins 70A and 70B respectively. The switching device 40 releases the locked states of the second lock pins 70A and 70B by pulling the second connection wires 71A and 71B by operating the operation lever 50. With the release of the locking of the second lock pins 70A and 70B, the first drawer member 30A and the second drawer member 30B are deployed from the armrest 10 in opposite directions. Even with the above configuration, the occupant can suitably use the armrest 10 and the drawer members 30A and 30B as a table.

[0046] <<Modification 3>> A modification 3 of the vehicle seat S1 will be described with reference to FIGS. 7A and 7B. FIG. 7A is a view showing a state where the armrest 10 is in the "moving position" and the drawer member 30 is in the "storage position". FIG. 7B is a view showing a state where the drawer member 30 is in the "deployed position". In modification 3, the first drawer member 30A and the second drawer member 30B are stored on the bottom surface of the armrest 10 (the upper surface when the armrest 10 is rotated), and can be deployed outward from the armrest 10 in the seat width direction. The first drawer member 30A and the second drawer member 30B are arranged side by side left and right when in the "storage position". The first drawer member 30A and the second drawer member 30B are deployed from the armrest 10 in opposite directions by rotating upward respectively. It is preferable that the switching device 40 releases the locked states of the second lock members 70A and 70B in accordance with the operation of the operation lever 50, and the drawer members 30A and 30B are deployed. Even with the above configuration, the occupant can suitably use the armrest 10 and the drawer members 30A and 30B as a table.

[0047] <Second Embodiment> Next, the vehicle seat S2 of the second embodiment will be described with reference to FIGS. 8 to 11C. Note that descriptions of the content overlapping with the above-described vehicle seat S1 will be omitted.

[0048] As shown in FIG. 8, the vehicle seat S2 is a seat capable of switching a drawer member 130 inside an armrest 110 between a "storage position" and a "deployed position". In the vehicle seat S2, by operating an operation lever 150 by a passenger, switching operations of the armrest 110 and the drawer member 130 can be performed.

[0049] The vehicle seat S2 includes an armrest 110, a drawer member 130, and a switching device 140. As shown in FIGS. 8 to 9B, the armrest 110 includes an armrest frame 120 and is attached to the seat back 102 via the switching device 140. The armrest 110 is switchable between a "normal position" shown in FIGS. 9A and 9B and a "moving position (rotating position)" shown in FIGS. 10A and 10B.

[0050] The armrest frame 120 includes a shaft support frame 121 that supports a rotation shaft 141, a lever support frame 122 that supports the operation lever 150, a wire support frame 123 that supports each connection wire 161, 171, and a table support frame 124 that supports the drawer member 130.

[0051] As shown in FIG. 8, the drawer member 130 is attached to be slidable inward in the seat width direction from the side surface of the armrest 110. The drawer member 130 is switchable between a "storage position" stored in the armrest 110 and a "deployed position" pulled out straight from the armrest 110. As shown in FIGS. 9A and 9B, the drawer member 130 has a drawer body 131, a plurality of lock grooves 132, and left and right spring holding portions 133.

[0052] As shown in FIGS. 9A and 9B, the switching device 140 can unlock the armrest 110 and the drawer member 130 by means of a single operation lever 150. The switching device 140 includes a rotation shaft 141, an operation lever 150, a first lock pin 160 for locking the armrest 110, and a second lock pin 170 for locking the drawer member 130. The switching device 140 further includes a first connection wire 161, a first biasing spring 162, a second connection wire 171, and a second biasing spring 172. On the outer surface of the rotation shaft 141, a lock groove 141b is formed along a circumference centered on the axis 141a of the rotation shaft 141.

[0053] The first lock pin 160 locks the rotation of the armrest 110 by engaging with the lock groove 141b formed on the outer surface of the rotation shaft 141. The first connection wire 161 pulls the first lock pin 160 forward from the "lock position" to the "unlock position" as the operation lever 150 is pulled.

[0054] The second lock pin 170 is a lock member (comb-shaped member) having a plurality of convex portions, and can suitably lock the long drawer member 130. The second lock pin 170 locks the sliding movement of the drawer member 130 by engaging with a lock groove 132 formed on the upper surface of the drawer member 130. The second connection wire 171 is a linear connection member extending in the front-rear direction and downward of the seat, and has a slack portion 171a. The second connection wire 71 pulls the second lock pin 170 upward from the "lock position" to the "unlock position" as the operation lever 150 is pulled.

[0055] As described above, the first connection wire 161 and the second connection wire 171 have different lengths. That is, the second connection wire 171 has a slack portion 171a. By doing so, the switching device 140 first pulls the first connection wire 161 in accordance with the "first operation amount" of the operation lever 150, releasing the locked state of the first lock pin 160. Then, the second connection wire 171 is pulled in accordance with the "second operation amount" of the operation lever 150, releasing the locked state of the second lock pin 170. The "second operation amount" has a greater pulling operation amount than the "first operation amount".

[0056] As shown in FIGS. 9A, 9B, 11A to 11C, the operation lever 150 is arranged to protrude forward from the armrest 110. The operation lever 150 is attached to the armrest 110 so as to be rotatable between a "reference position (first rotation position)" and a "second rotation position". Specifically, the operation lever 150 can be switched between the "reference position" shown in FIG. 11A, the "first rotation position" shown in FIG. 11B in a state of being pulled forward from the reference position, and the "second rotation position" shown in FIG. 11C in a state of being rotated 90 degrees from the reference position and pulled forward.

[0057] The operation lever 150 has a lever operation part 151, a lever extension part 152, first lever support parts 153A and second lever support parts 153B supported by an armrest frame 120 (lever support frame 122), and a lever biasing spring 154. In the lever support frame 122, a first through hole 122A and a second through hole 122B are formed which penetrate in the longitudinal direction of the operation lever 150 and allow the first lever support part 153A to pass through. The first through hole 122A and the second through hole 122B correspond to keyholes.

[0058] When the operation lever 150 is in the "reference position" shown in FIG. 11A, the switching device 140 holds the locked states of the first lock pin 160 and the second lock pin 170 by the rear surface of the first lever support part 153A abutting against the lever support frame 122. Specifically, the operation lever 150 is biased by a lever biasing spring 154, and the rear surface of the first lever support portion 153 is pressed against the lever support frame 122.

[0059] When the operation lever 150 is in the "first rotation position" shown in FIG. 11B, the switching device 140 unlocks the first lock pin 160 as the first lever support portion 153A passes through the first through hole 122A following the operation of the operation lever 150. Specifically, the first lever support portion 153A passes through the first through hole 122A, and the front surface of the first lever support portion 153A abuts against the edge portion of the second through hole 122B. The operation amount of the operation lever 150 at this time corresponds to the "first operation amount", and the locked state of the first lock pin 160 is released as the first connection wire 161 is pulled.

[0060] When the operation lever 150 is in the "second rotation position" shown in FIG. 11C, the switching device 140 unlocks both the first lock pin 160 and the second lock pin 170 as the first lever support portion 153A passes through the second through hole 122B following the operation of the operation lever 150. Specifically, the first lever support portion 153A further passes through the second through hole 122B, and the front surface of the second lever support portion 153B is pressed against the lever support frame 122. The operation amount of the operation lever 150 at this time corresponds to the "second operation amount", and the locked state of the second lock pin 170 is released as the second connection wire 171 is pulled.

[0061] With the above configuration, by using one operation lever 150, it is possible to unlock the first lock pin 160 and the second lock pin 170 according to the rotation position of the operation lever 150. Therefore, it is possible to prevent the pull-out member 130 from being unintentionally deployed from the armrest 110.

[0062] Even for the vehicle seat S2, it is possible to realize a seat that can smoothly perform the switching operation of the armrest 110 and the switching operation of the drawer member 130.

[0063] <Third Embodiment> Next, the vehicle seat S3 of the third embodiment will be described with reference to FIGS. 12 to 17C. Note that descriptions of the contents overlapping with the above-described vehicle seats S1 and S2 will be omitted.

[0064] As shown in FIG. 12, the vehicle seat S3 is a seat capable of switching a drawer member 230 inside an armrest 210 between a "storage position" and a "deployed position". In the vehicle seat S3, by operating an operation lever 250 by a passenger, the switching operation of the armrest 210 and the switching operation of the drawer member 230 can be performed.

[0065] The vehicle seat S3 includes an armrest 210, a drawer member 230, and a switching device 240. As shown in FIGS. 12 to 14B, the armrest 210 includes an armrest frame 220 and is attached to the seat back 202 via the switching device 240. The armrest 210 is switchable between a "normal position" shown in FIGS. 13A and 13B and a "moving position (rotating position)" shown in FIGS. 14A and 14B. The armrest 210 is not locked when in the "normal position" and is rotatable with respect to the seat back 202. On the other hand, it is in a locked state when in the "moving position".

[0066] The armrest frame 220 includes a shaft support frame 221, a lever support frame 222, a wire support frame 223, and a table support frame 224.

[0067] As shown in FIG. 12, the drawer member 230 is attached so as to be slidable rearward from the front surface (the rear surface when in the moving position) of the armrest 210. The drawer member 230 can be switched between a "stored position" and a "deployed position". As shown in FIG. 13A, the drawer member 230 has a drawer body 231, a plurality of lock grooves 232, and left and right spring holders 233. The drawer member 230 is locked when in the "stored position" and the "deployed position".

[0068] As shown in FIGS. 13A and 13B, the switching device 240 can unlock the armrest 210 and the drawer member 230 by means of a single operation lever 250. The switching device 240 includes a rotation shaft 241, an operation lever 250, a first lock pin 260 for locking the armrest 210, and a second lock pin 270 for locking the drawer member 230. The switching device 240 also includes a first connection wire 261, a first biasing spring 262, a second connection wire 271, and a second biasing spring 272.

[0069] As shown in FIGS. 13A and 15, on the outer surface of the rotation shaft 241, lock grooves 242 are formed in an arc shape centered on the axis 241a and arranged along the circumference formed so as to pass above the axis 241a. Specifically, the lock groove 242 is formed in an arc shape centered on the axis 241a, and has a first groove portion 242a passing above the axis 241a and a second groove portion 242b formed continuously at the rear end portion of the first groove portion 242a and extending forward from the rear end portion of the first groove portion 242a toward the axis 241a. A step portion 242c is formed at the upper end portion of the lock groove 242.

[0070] As shown in FIGS. 13B and 15, the first lock pin 260 is an L-shaped lock member that moves along the lock groove 242 in a state of being engaged with the lock groove 242 as the armrest 210 is rotated. Specifically, the first lock pin 260 has a pin extension portion 260a that is long in the front-rear direction, and a pin engagement portion 260b that extends by bending from the extended end portion of the pin extension portion 260a and engages with the lock groove 242. Note that the first lock pin 260 may be a U-shaped lock member.

[0071] When the armrest 210 is in the "normal position" shown in FIGS. 13A and 13B, the switching device 240 can move with the first lock pin 260 engaged with the first groove portion 242a. Therefore, the switching device 240 is in a state where it does not lock the movement of the armrest 210. On the other hand, when the armrest 210 is in the "moving position" shown in FIGS. 14A and 14B, the switching device 240 cannot move with the first lock pin 260 engaged with the second groove portion 242b. Specifically, the first lock pin 260 is biased toward the second groove portion 242b by the first biasing spring 262. Therefore, the switching device 240 is in a state where it locks the movement of the armrest 210. When it is desired to unlock the armrest 210, the operation lever 250 is pulled to disengage the first lock pin 260 from the second groove portion 242b, thereby releasing the locked state.

[0072] In the above configuration, as shown in FIG. 15, a stepped portion 242c is formed at the upper end portion of the lock groove 242. Therefore, when the armrest 210 is rotated from the upper position to the "moving position", the first lock pin 260 needs to overcome the stepped portion 242c. By doing so, it is possible to prevent the armrest 210 from rotating vigorously from the "normal position" to the "moving position", and the occupant can stably operate the armrest 210. That is, the armrest 210 can be temporarily stopped at a position facing upward.

[0073] Note that, as a fourth modification example of the switching device 240, the configuration shown in FIGS. 16A to 16C may be used. Specifically, as in the fourth modification example, the first lock pin 260 may be a rod-shaped lock member. In that case, it is preferable that a lock groove 242 (a first groove portion 242a, a second groove portion 242b, and a step portion 242c) is formed along the outer peripheral surface of the rotation shaft 241. Even with the above configuration, when the armrest 210 is in the "moved position" shown in FIG. 16C, that is, when the first lock pin 260 is engaged with the second groove portion 242b, the switching device 240 can lock the movement of the armrest 210. When it is desired to release the lock of the armrest 210, the lock state is released by pulling the operation lever 250 to disengage the first lock pin 260 from the second groove portion 242b.

[0074] The second lock pin 270 locks the slide movement of the drawer member 230 by engaging with a lock groove 232 formed on the upper surface of the drawer member 230.

[0075] The first lock pin 260 shown in FIG. 13B is fixed to the extending end portion of the first connection wire 261, and the first engaging member 263 shown in FIG. 17A is fixed to the base end portion of the first connection wire 261. Similarly, the second lock pin 270 shown in FIG. 13B is fixed to the extending end portion of the second connection wire 271, and the second engaging member 273 shown in FIG. 17A is fixed to the base end portion of the second connection wire 271.

[0076] As shown in FIGS. 13A, 13B, and 17A to 17C, the operation lever 250 is arranged to protrude forward from the armrest 210. The operation lever 250 is attached to be rotatable between a "reference position", a "first rotation position", and a "second rotation position" with respect to the armrest 210. Specifically, the operation lever 250 can be switched between the "reference position" shown in FIG. 17A, the "first rotation position" shown in FIG. 17B which is rotated 90 degrees counterclockwise from the reference position, and the "second rotation position" shown in FIG. 17C which is rotated 90 degrees clockwise from the reference position.

[0077] The operation lever 250 has a lever operation portion 251, a lever extension portion 252, a lever support portion 253 supported by an armrest frame 220 (lever support frame 222), and a lever biasing spring 254. When the lever support portion 253 is in the "first rotation position" shown in FIG. 17B, it engages with the first engagement member 263. Also, when the lever support portion 253 is in the "second rotation position" shown in FIG. 17C, it engages with the second engagement member 273.

[0078] When the operation lever 250 is in the "reference position" shown in FIG. 17A, the switching device 240 maintains the locked states of the first lock pin 260 and the second lock pin 270. Specifically, since the lever support portion 253 is not engaged with the engagement members 263 and 273, even if the occupant pulls the operation lever 250, it remains in a locked state.

[0079] When the operation lever 250 is in the "first rotation position" shown in FIG. 17B and the lever support portion 253 is engaged with the first engagement member 263, the switching device 240 releases the locked state of the first lock pin 260 in accordance with the operation of the operation lever 250. Specifically, since the lever support portion 253 is engaged with the first engagement member 263, the occupant can pull the first lock pin 260 by pulling the operation lever 250 to release the lock.

[0080] When the operation lever 250 is in the "second rotation position" shown in FIG. 17C and the lever support portion 253 is engaged with the second engagement member 273, the switching device 240 releases the locked state of the second lock pin 270 in accordance with the operation of the operation lever 250. Specifically, since the lever support portion 253 is engaged with the second engagement member 273, when the occupant pulls the operation lever 250, the second lock pin 270 can be pulled to release the lock.

[0081] With the above configuration, by using one operation lever 250, the unlocking of the first lock pin 260 and the unlocking of the second lock pin 270 can be performed according to the rotation position of the operation lever 250. Even with the vehicle seat S3, the switching operation of the armrest 210 and the switching operation of the drawer member 230 can be smoothly performed.

[0082] <Fourth Embodiment> Next, the vehicle seat S4 of the fourth embodiment will be described with reference to FIGS. 18 to 20B. Note that descriptions of the contents overlapping with the above-described vehicle seats S1 to S3 are omitted.

[0083] As shown in FIG. 18, the vehicle seat S4 is a seat capable of switching a drawer member 330 inside the armrest 310 between a "storage position" and a "deployed position". In the vehicle seat S4, by operating the operation lever 350 by the occupant, the switching operation of the armrest 310 and the switching operation of the drawer member 330 can be performed.

[0084] The vehicle seat S4 includes an armrest 310, a drawer member 330, and a switching device 340. As shown in FIGS. 18 to 20B, the armrest 310 includes an armrest frame 320 and is attached to the seat back 302 via the switching device 340. The armrest 310 is switchable between a "normal position" shown in FIGS. 19A and 19B and a "moving position (rotating position)" shown in FIGS. 20A and 20B. The armrest 310 is in a locked state when in the "normal position" and the "moving position".

[0085] As shown in FIG. 18, the drawer member 330 is rotatably attached from the bottom surface (upper surface when in the moving position) of the armrest 310. The drawer member 330 can be switched between the "storage position" and the "deployed position". As shown in FIGS. 19A and 19B, the drawer member 330 includes a drawer main body 331, a lock groove 332, a rotation shaft 333 (hinge), and a handle portion 334. A drawer biasing spring 380 is assembled to the drawer member 330. The drawer member 330 is locked when in the "storage position" and the "deployed position".

[0086] As shown in FIG. 19B, the lock groove 332 is formed at the rear end portion (rear end surface) of the drawer member 330. The rotation shaft 333 is assembled to the front end portion of the drawer member 330. The handle portion 334 is an opening formed in the rear portion of the drawer member 330.

[0087] As shown in FIGS. 19A and 19B, the switching device 340 can unlock the armrest 310 and the drawer member 330 by one operation lever 350. The switching device 340 includes a rotation shaft 341, an operation lever 350, a first lock pin 360 for locking the armrest 310, and a second lock pin 370 for locking the drawer member 330. Further, the switching device 340 includes a first connection wire 361, a first biasing spring 362, a second connection wire 371, and a second biasing spring 372. Lock grooves 341b, 341c, and 341d are formed on the outer peripheral surface of the rotation shaft 341.

[0088] As shown in FIGS. 19A to 20B, the operation lever 350 is disposed at the front end portion of the armrest 310. The operation lever 350 has a lever biasing spring 354. When the operation lever 350 is pulled against the biasing force of the lever biasing spring 354, the switching device 340 can switch the first lock pin 360 and the second lock pin 370 from the "lock position" to the "unlock position".

[0089] As shown in FIGS. 19B and 20B, the first lock pin 360 engages with the lock groove 341b of the rotation shaft 341 to lock the rotation of the armrest 310. The first connection wire 361 connects the operation lever 350 and the first lock pin 360. The second lock pin 370 engages with the lock groove 332 of the drawer member 330 to lock the rotation of the drawer member 330. The second connection wire 371 connects the operation lever 350 and the second lock pin 370.

[0090] In the above configuration, as shown in FIGS. 20A and 20B, when the second lock pin 370 disengages from the lock groove 332, the drawer member 330 rotates from the "storage position" to the "deployed position" by the biasing force of the drawer biasing spring 380. The drawer member 330 is deployed rearward from the armrest 310 and used as a table.

[0091] In the above configuration, the first biasing spring 362 that biases the first lock pin 360 and the second biasing spring 372 that biases the second lock pin 370 have different biasing forces. Specifically, the second biasing spring 372 is a spring with a stronger biasing force than the first biasing spring 362. By doing so, according to the amount of operation of pulling the operation lever 350 (according to the strength of the pulling force), the unlocking of the armrest 310 and the unlocking of the drawer member 330 can be performed. For example, by weakly pulling the operation lever 350, the lock of the armrest 310 can be released, and by strongly pulling the operation lever 350, the lock of the drawer member 330 can be released.

[0092] Even with the vehicle seat S4, the switching operations of the armrest 310 and the drawer member 330 can be performed smoothly.

[0093] <Method for manufacturing a vehicle seat> Next, a method for manufacturing the vehicle seat S1 will be described with reference to FIGS. 1 to 7B. In manufacturing the vehicle seat S1, the description of manufacturing steps other than the following will be omitted.

[0094] First, prepare the seat body Sa and the armrest 10. Then, assemble the switching device 40 to the seat body Sa so that the armrest 10 can be switched between the "normal position" and the "movable position". Then, inside the armrest 10, attach the drawer member 30 so that it can be deployed from the armrest 10. At this time, the drawer member 30 is configured to be switchable between a "stored position" stored in the armrest 10 and a "deployed position" deployed from the armrest 10 by the switching device 40.

[0095] The switching device 40 includes a first lock pin 60, a second lock pin 70, and an operation lever 50. The operation lever 50 is connected to the first lock pin 60 and the second lock pin 70. By doing so, the locked states of the first lock member and the second lock member can be released as the operation lever 50 is operated.

[0096] By the above manufacturing method, a vehicle seat S1 can be manufactured in which the switching operation of the armrest 10 and the switching operation of the drawer member 30 can be suitably performed.

[0097] <Other embodiments> In the above embodiment, as shown in FIGS. 1 and 2, the armrest 10 rotates with respect to the seat back 2 to switch between the "normal position" and the "movable position", but it is not particularly limited. For example, the armrest 10 may be switched between the "normal position" and the "moved position" by moving (sliding) in the front-rear direction of the seat.

[0098] In the above embodiment, as shown in FIG. 1, the operation lever 50 is attached to the front surface (front end portion) of the armrest 10, but it is not particularly limited. For example, the operation lever 50 may be attached to the upper surface or the bottom surface of the armrest 10, or may be attached to the outer surface or the inner surface, or may be attached to the rear surface. Further, the operation lever 50 may be disposed at the rear portion (rear end portion) of the armrest 10. Note that the shape of the operation lever 50 may be a hook shape or the like. If it is a hook shape, for example, the handle portion of a bag can be hooked.

[0099] In the above embodiment, as shown in FIGS. 3A and 3B, the linear first connection wire 61 (second connection wire 71) connects the operation lever 50 and the first lock pin 60 (second lock pin 70), but it is not particularly limited. For example, a connection cable may be used instead of the connection wire, or a rod-shaped connection member, a combination of rod-shaped connection members may be used. Alternatively, a gear may be used, or a combination of a gear and a cable may be used.

[0100] In the above embodiment, as a specific example, a vehicle seat used in an automobile has been described, but it is not particularly limited, and in addition to vehicle seats for trains, buses, etc., it can also be used as a vehicle seat for airplanes, ships, etc.

[0101] In this embodiment, the vehicle seat according to the present invention has been mainly described. However, the above embodiment is only an example for facilitating the understanding of the present invention and does not limit the present invention. The present invention can be changed and improved without departing from its gist, and it goes without saying that equivalents of the present invention are included therein.

Explanation of Reference Numerals

[0102] <First Embodiment> S1 Vehicle Seat Sa Seat Body 1 Seat Cushion 1a Cushion Frame 1b Pad Material 1c Skin Material 2 Seat Back 2a Back Frame 2b Pad Material 2c Skin Material 3 Headrest 10 Armrest 10a Pad Material 10b Skin Material 11 Storage Recess (Storage Portion) 20 Armrest Frame 21 Shaft Support Frame 22 Lever Support Frame 23 Wire Support Frame 24 Table Support Frame 30 Drawer Member (Table, Drawer) 30A First Drawer Member 30B Second Drawer Member 31 Drawer Body 32 Lock Groove 33 Spring Retaining Portion 40 Switching Device 41 Rotation Axis 41a Axis Core 41b First Lock Groove 41c Second Lock Groove 41d Third Lock Groove 50 Operation Lever (Operation Member) 51 Lever Operation Portion 52 Lever Extension Portion 53 Lever Support Portion 54 Lever Biasing Spring (Lever Biasing Member) 60 First Lock Pin (First Lock Member) 61 First Connection Wire (First Connection Member) 62 First Biasing Spring 70, 70A, 70B Second Lock Pin (Second Lock Member) 71, 71A, 71B Second connection wire (second connection member) 72 Second biasing spring (second biasing member) 73 Guide pin 80 Drawer biasing spring (drawer biasing member) 81 Sliding member <Second Embodiment> S2 Vehicle seat 101 Seat cushion 102 Seat back 110 Armrest 120 Armrest frame 121 Axis support frame 122 Lever support frame 122A First through hole 122B Second through hole 123 Wire support frame 124 Table support frame 130 Drawer member 131 Drawer body 132 Lock groove 133 Spring holding part 140 Switching device 141 Rotation axis 141a Axis center 141b Lock groove 150 Operation lever (operation member) 151 Lever operation part 152 Lever extension part 153A First lever support part 153B Second lever support part 154 Lever biasing spring 160 First lock pin (first locking member) 161 First connection wire (first connection member) 162 First biasing spring 170 Second lock pin (second locking member) 171 Second connection wire (second connection member) 171a Slack part 172 Second biasing spring <Third Embodiment> S3 Vehicle seat 202 Seat back 210 Armrest 220 Armrest frame 221 Shaft support frame 222 Lever support frame 223 Wire support frame 224 Table support frame 230 Drawer member 231 Drawer body 232 Lock groove 233 Spring holding part 240 Switching device 241 Rotating shaft 241a Shaft center 242 Lock groove 242a First groove part 242b Second groove part 242c Step part 250 Operating lever 251 Lever operating part 252 Lever extension part 253 Lever support part 254 Lever biasing spring 260 First lock pin 260a Pin extension part 260b Pin engaging part 261 First connection wire 262 First biasing spring 263 First engaging member 270 Second lock pin 271 Second connection wire 272 Second biasing spring 273 Second engaging member 280 Drawer biasing spring 281 Sliding member <Fourth Embodiment> S4 Vehicle seat 302 Seat back 310 Armrest 320 Armrest frame 330 Drawer member 331 Drawer body 332 Lock groove 333 Rotating shaft 334 Gripping part 340 Switching device 341 Rotating shaft 341b First locking groove 341c Second locking groove 341d Third locking groove 350 Operating lever 354 Lever biasing spring 360 First locking pin 361 First connecting wire 362 First biasing spring 370 Second locking pin 371 Second connecting wire 372 Second biasing spring 380 Drawer biasing spring

Claims

1. A seat body, An armrest provided on a side portion of the seat body; A switching device that switches the armrest between a normal position and a moved position moved from the normal position with respect to the seat body; a pull-out member attached so as to be deployable from the armrest; The pull-out member is configured to be switchable between a stored position in which the pull-out member is stored in the armrest and a deployed position in which the pull-out member is deployed from the armrest, The switching device is a first locking member that locks the armrest against movement when the armrest is in the movement position; a second locking member for locking the movement of the pull-out member when the pull-out member is in the deployed position; and an operating member connected to each of the first locking member and the second locking member, and which is operated to release the locked state of the first locking member and the locked state of the second locking member.

2. The switching device is a first biasing member that biases the first locking member from an unlocked state to a locked state; a second biasing member that biases the second locking member from an unlocked state to a locked state, The switching device is The first locking member, which is biased by the first biasing member in response to an amount of operation of the operating member, is moved from a locked state to an unlocked state, and 2. The vehicle seat according to claim 1, wherein the second locking member, biased by the second biasing member in response to an amount of operation of the operating member, is moved from a locked state to an unlocked state.

3. The operating member is attached to the armrest so as to be rotatable between a first rotation position and a second rotation position, The switching device is When the operating member is in the first rotation position, one of the first locking member and the second locking member is moved from a locked state to an unlocked state in response to an operation of the operating member, 2. The vehicle seat according to claim 1, characterized in that when the operating member is in the second pivot position, the other or both of the first locking member and the second locking member are moved from a locked state to an unlocked state in response to operation of the operating member.

4. The switching device is a linear first connecting member that connects the operating member and the first locking member; a linear second connecting member that connects the operating member and the second locking member and has a length different from that of the first connecting member; The vehicle seat according to claim 3, characterized in that the switching device releases the locked state of the first locking member and the locked state of the second locking member by pulling the first connecting member and the second connecting member in response to operation of the operating member.

5. The operating member is an operating lever, the operating lever has a lever operating portion operated by an occupant and a lever support portion inserted into the armrest and supported by an armrest frame, The armrest frame is formed with a first through hole and a second through hole that penetrate the operating lever in a longitudinal direction and through which the lever support portion passes, The switching device is When the operating member is in a reference position, the lever support portion abuts against the armrest frame to maintain the first locking member and the second locking member in a locked state, When the operating member is in the first rotation position, the lever support portion passes through the first passage hole in response to operation of the operating member, thereby moving the first locking member to an unlocked state, The vehicle seat according to claim 4, characterized in that when the operating member is in the second rotation position, the lever support portion passes through the second through hole in response to operation of the operating member, thereby moving the first locking member and the second locking member to an unlocked state.

6. The switching device is a first connecting member that connects the operating member and the first locking member; a second connecting member that connects the operating member and the second locking member, The operating member is an operating lever, the operating lever has a lever operating portion operated by an occupant and a lever support portion inserted into the armrest and supported by an armrest frame, A first engaging member is attached to one end of the first connecting member, and a second engaging member is attached to one end of the second connecting member, The switching device is When the operating member is in the first pivot position and the lever support portion is engaged with the first engagement member, the first locking member is moved from a locked state to an unlocked state in response to the operation of the operating member, 4. The vehicle seat according to claim 3, wherein when the operating member is in the second pivot position and the lever support portion is engaged with the second engagement member, the second locking member is moved from a locked state to an unlocked state in response to operation of the operating member.

7. The switching device includes a rotation shaft for rotatably mounting the armrest to the seat body, The first locking member is provided inside the armrest, 4. The vehicle seat according to claim 1, wherein the first locking member is a locking pin that engages with a locking groove formed on an outer surface of the rotating shaft.

8. The lock groove is formed in an arc shape centered on an axis of the rotation shaft and is provided so as to pass above the axis, The lock pin moves along the lock groove while being engaged with the lock groove in association with a rotation operation of the armrest, The vehicle seat according to claim 7, wherein a step is formed at an upper end of the lock groove.

9. The lock groove is A first groove portion that is formed in an arc shape about an axis of the rotation shaft and passes above the axis; a second groove portion formed continuously with a rear end portion of the first groove portion and extending forward from the rear end portion of the first groove portion toward the shaft core, The vehicle seat according to claim 7, wherein the switching device locks the movement of the armrest by engaging the lock pin with the second groove when the armrest is in the moved position.

10. The switching device is a first biasing member that biases the first locking member from an unlocked state to a locked state; 8. The vehicle seat according to claim 7, further comprising: a second biasing member that biases the second locking member from the unlocked state to the locked state and has a biasing force different from that of the first biasing member.

11. The vehicle seat according to claim 10, wherein the second biasing member has a stronger biasing force than the first biasing member.

12. The drawer member is stored in a storage recess provided in the armrest, The switching device is a sliding member provided on the armrest and configured to slidably support the drawer member; a pull-out biasing member that biases the pull-out member from the stored position to the deployed position, 4. The vehicle seat according to claim 1, wherein the pull-out member is pulled out from the stored position to the deployed position when the second locking member is unlocked.

13. The seat body has a seat cushion and a seat back, The armrest is rotatably attached to a back frame of the seat back, 4. The vehicle seat according to claim 1, wherein the pull-out member is a table that can be pulled out from the armrest, or a drawer that can be pulled out from the armrest and can store items.

Images