JP2017159785A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch an operation body, configured to be held in its position by releasing the lock of a seat position, to a state in which operation load is removed quickly after the operation.SOLUTION: An operation body 40 configured to be held in its position by performing a release operation for a lock mechanism that locks a seat position, comprises: a driving member joint 42 rotated by input of an operation load; a follower member joint 43 pushed and rotated by its contact with the driving member joint 42; a memory operation cable 44 that, by the follower member joint 43 pushed and rotated, operates to release the lock mechanism. Both the joints 42, 43 are arranged such that the respective rotation centers (axial pins 42A, 43A) are separated from each other in a radial direction. On a segment connecting the centers of them, the driving member joint 42 pushes and rotates the follower member joint 43. At a point where the follower member joint 43 is moved beyond a rotation area where the lock mechanism is operated to be released, the follower member joint is released from its contact with the driving member joint 42 and can be returned to its initial position used before the operation.SELECTED DRAWING: Figure 31

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat having an operation body configured to release a lock mechanism that locks a seat position by inputting an operation load and to hold the lock mechanism at the operation position.

  Conventionally, a mechanism described in Patent Document 1 below is known as a mechanism for connecting a vehicle seat in a slidable state with respect to a floor. In other words, it includes a slide rail that can adjust the seat position by a release operation of the lock mechanism, and a memory mechanism that stores the position before the change of the seat position and allows the position to be returned to the position before the change. The lock mechanism is configured to be held in a state where the seat position is locked in an initial state and switched to a release state in which the seat position can be adjusted by operating a release lever. The memory mechanism is operated by a memory lever provided separately from the release lever described above.

  Specifically, the memory mechanism performs the unlocking operation of the lock mechanism by operating the memory lever described above, and leaves the memory member engaged in the position before the change where the releasing operation was performed. This member is separated into a state in which it can be slid together with the vehicle seat. Then, the memory mechanism returns the seat position to the storage position after the change of the seat position, so that the above-described other member comes into contact with the memory member left in the storage position, and the lock mechanism is returned to the locked state. To be pushed.

  In addition, the memory mechanism is configured so that the other members described above can be operated in the same manner as the operation when the seat position is returned to the storage position described above by retracting the seat position from the state where the memory lever is operated to the position near the rearmost. It is applied to a stopper bracket installed near the rearmost and is pushed so as to return the lock mechanism to the locked state. As a result, the seat position can be held in a temporarily retracted position, and a wide boarding / alighting space can be secured on the front side of the seat. The temporary locked state at the retracted position is released by operating the memory lever again.

JP 2010-125917 A

  In the prior art, the lock mechanism is released by the operation of the memory lever, so that the lock mechanism is held at the position where the release is performed. Therefore, the operating body that releases the lock mechanism by operating the memory lever is a position where the seat position can be quickly applied to the stopper bracket unless the force for quickly releasing the lock mechanism is unloaded after the operation. When it is moved to the position, the movement of the lock mechanism to return to the locked state is obstructed. That is, the lock cannot be performed quickly at an appropriate timing. The present invention was devised as a solution to the above-described problem, and the problem to be solved by the present invention is a configuration in which the seat position is unlocked by the input of an operation load and held in the operation position. An object of the present invention is to switch the operating body to a state in which the operating load is quickly unloaded after the above operation.

  In order to solve the above problems, the vehicle seat of the present invention takes the following means.

  A first aspect of the present invention is a vehicle seat having an operating body configured to release a lock mechanism that locks a seat position by inputting an operation load and to hold the lock mechanism in the operation position. The operating body includes a driving node that is rotated by input of an operating load, a driven node that is pushed by contact with the driving node, an operation member that is operated to release the lock mechanism when the driven node is pushed, Have The driving node and the driven node are arranged such that the respective rotation centers are radially separated from each other, and the driving node starts to hit the driven node by rotation on the line segment connecting these rotation centers, and the driven node is pushed and rotated. The contact with the prime mover is removed by the progress of rotation at a position beyond the rotation range where the lock mechanism is operated to be released, and the state can return to the initial position before the operation.

  According to the first aspect of the invention, a strong rotational torque is exerted from the driving node to the driven node so that the driven node is easily pushed around with a light force, and the driven node is in contact with the driving node in a short rotation range. It becomes easy to be removed from the state. Therefore, the driven node can be quickly removed from the contact state with the driving node in the operation process and switched to the state where the operation load is removed.

  The second invention is the following configuration in the first invention described above. A spring that applies a biasing force toward the initial position before the operation is provided on the driven node.

  According to the second aspect of the present invention, the driven node can be quickly removed from the contact state with the driving node in the operation process, and can be switched to the state in which the operation load is removed.

  The third invention is the following configuration in the first or second invention described above. The operating member has a cable arranged so as to extend in a direction intersecting the line segment from the line segment connecting the rotation centers to the driven node, and the cable is pulled when the driven node is pushed around. Thus, the lock mechanism is released.

  According to the third aspect of the present invention, the operation member can be pulled longer and more efficiently by the movement of the driven node being pushed.

  According to a fourth invention, in any one of the first to third inventions described above, the following configuration is adopted. In addition, a memory mechanism is provided for storing the position before the change of the sheet position and returning the position to the position before the change. The operation member is configured to be held at the operation position by releasing the lock mechanism while keeping the position of the memory mechanism. The memory mechanism is configured to operate so as to return the lock mechanism to the locked state when the seat position is moved to a predetermined position.

  According to the fourth aspect of the invention, after the lock mechanism is released by the operation of the operation member, the operation member is quickly unloaded after the release operation even if the seat position is quickly moved to the predetermined position. Therefore, the lock mechanism can be quickly and appropriately returned to the locked state.

  According to a fifth invention, in any of the first to fourth inventions described above, the following configuration is adopted. When the driving node is configured with a one-way middle-folding hinge structure, it does not bend when the driven node is pushed by the input of the operation load, but when the rotational positional relationship with the driven node is reversed. It returns to the initial rotational position while escaping the movement that is pressed against the driven node from the reverse direction by breaking it.

  According to the fifth aspect of the present invention, it is possible to smoothly return the driving node from the rotated state to the rotation range where the rotational positional relationship with the driven node is reversed.

  A sixth invention is the following configuration in any one of the first to fourth inventions described above. The driving node is configured to be rotationally driven in one direction by the drive of an electric motor, and is configured to be stopped at the initial position by a limit switch every rotation.

  According to the sixth aspect of the invention, by using the limit switch, it is possible to provide a simple configuration in which the prime mover is simply rotated in one direction.

FIG. 3 is a side view illustrating an outline of a memory function of the vehicle seat according to the first embodiment. It is a side view showing the state where the loop handle was operated during the memory function and the slide was locked. It is a side view showing a state where a seat position is adjusted by operation of a loop handle. It is a perspective view showing a slide rail and its peripheral structure. It is the perspective view which disassembled and represented the slide rail of the vehicle width direction outer side. FIG. 6 is a perspective view showing another mechanism disassembled from FIG. 5. It is a disassembled perspective view of a cancellation mechanism and a memory mechanism. FIG. 8 is an exploded perspective view illustrating a state in which a part of the structure is assembled from FIG. 7. It is the side view which visualized and represented the principal part structure of the vehicle seat in an initial state. FIG. 10 is a side view showing a state in which the slide lock is released by operating the loop handle from the initial state (FIG. 9). FIG. 11 is a side view illustrating a state in which the seat position is adjusted from FIG. 10. FIG. 10 is a side view showing a state in which the memory lever is operated to a certain position from the initial state (FIG. 9). FIG. 13 is a side view showing a state where the memory lever is further operated and the lock spring is released from FIG. 12. FIG. 14 is a side view showing a state where the holding member is hooked on the release link from FIG. 13 and the position of the memory link is held. FIG. 15 is a side view illustrating a state in which the seat position is retracted from FIG. 14. FIG. 16 is a side view illustrating a state in which the seat position is further retracted from FIG. 15 and brought into contact with the stopper bracket. FIG. 17 is a side view showing a state where the seat position is further retracted from FIG. 16 and the trigger of the memory mechanism is pushed into the stopper bracket. FIG. 18 is a side view showing a state where the seat position is further retracted from FIG. 17 to cancel the slide lock release holding state. FIG. 19 is a side view showing a state where the seat position is slightly adjusted to the front side from FIG. 18 and the slide lock is completed. FIG. 20 is a side view illustrating a state in which the memory lever is operated again from FIG. 19 and the memory link is held in the release position again. FIG. 21 is a side view showing a state in which the release and holding state of the slide lock is canceled by abutting with the memory body by moving the seat position forward from FIG. 20. FIG. 16 is a side view showing a state where the sheet position is at an intermediate position in a state where the memory function of FIG. 15 is working. FIG. 23 is a side view showing a state where the loop handle is operated and the holding member is released from FIG. 22. FIG. 24 is a side view showing a state in which the memory link is returned to the initial position by the operation of FIG. 23. It is the rear view showing the state where the back side stopper arm was withdrawn by operation of the loop handle. It is an expansion perspective view of an operation body. It is a disassembled perspective view of an operating body. It is a side view showing the initial state before operation of an operating body. It is the XXIX-XXIX sectional view taken on the line of FIG. It is a side view showing the state where the prime mover was applied to the follower by the operation of the memory lever. It is the side view showing the state where the follower node was removed from contact with the prime mover and returned to the initial position by further operation of the memory lever. FIG. 10 is a side view showing a state where the driving node is applied to the driven node from the reverse direction by the operation of returning the memory lever. FIG. 6 is a side view showing a state in which the rotational positional relationship between the driving node and the driven node is returned to the original by returning the memory lever to the initial position. 6 is a side view illustrating a schematic configuration of an operation body of a vehicle seat according to Embodiment 2. FIG. FIG. 5 is a side view showing a state where a driving node is rotated once by a memory switch operation and a driven node is pushed and kicked. 6 is a side view illustrating a schematic configuration of an operating body of a vehicle seat according to Embodiment 3. FIG. FIG. 6 is a side view showing a state where a driven node rotates to a position where it contacts a front stopper by operating a memory switch and a driven node is pushed and kicked.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

<< About schematic structure of sheet 1 >>
First, the configuration of the seat 1 (vehicle seat) according to the first embodiment will be described with reference to FIGS. As shown in FIGS. 1 to 3, the seat 1 of the present embodiment is configured as a driver seat of a right-hand drive vehicle. The seat 1 includes a seat back 2 that serves as a backrest portion for a seated occupant, a seat cushion 3 that serves as a seating portion, and a headrest 4 that serves as a headrest portion. The seat cushion 3 is connected to a vehicle floor F (corresponding to a “vehicle main body” of the present invention) with a pair of left and right slide rails 10 interposed therebetween. The seat back 2 is connected to the rear end portion of the seat cushion 3 described above via a recliner (not shown). The headrest 4 is mounted on the upper portion of the seat back 2.

  Here, in the following description, the “sheet width direction” refers to the lateral width direction (left-right direction) of the sheet 1. In addition, the term “vehicle width direction” refers to the lateral width direction (left and right direction) of the vehicle, and the term “inner side in the vehicle width direction” refers to the left side of the seat 1, that is, the side with the passenger seat (not shown). In the case of “outside in the vehicle width direction”, it means the right side of the seat 1, that is, the side with the entrance door (not shown).

  In the initial state, the above-described seat 1 is held in the locked state of the slide rails 10 described above, so that the position in the front-rear direction on the floor F (hereinafter referred to as “seat position”) is fixed. Is held as a state. As shown in FIG. 3, the slide rails 10 described above are unlocked all at once by the operation of pulling up the loop handle 5 provided at the front lower portion of the seat cushion 3, so that the seats are locked. It can be switched to a state where the position can be adjusted. Each slide rail 10 is returned to the locked state again by returning the operation of the loop handle 5 after adjusting the seat position.

  Further, as shown in FIG. 1, each of the slide rails 10 described above can be moved by the operation of pulling up the memory lever 6 provided on the outer side (right side) of the seat cushion 3 in the vehicle width direction. The locked state is released at once. At that time, even if the operation of the memory lever 6 is returned, the slide rails 10 are kept in the unlocked state of their slides by the memory mechanism 20 described later. Each slide rail 10 is in a state in which the seat position can be freely moved after the operation of the memory lever 6, and the seat position is indicated by a solid position or a locking position near the rearmost indicated by the phantom line in FIG. If the slide is not moved to the position before the change, the unlocked state of these slides is continuously maintained.

  That is, when the slide lock is released by the operation of the memory lever 6 described above, each slide rail 10 assumes that the position before the change of the seat position is stored by the action of the memory mechanism 20 described later. Can be switched to a state (memory state) in which the slide is basically locked only at either the locking position near the rearmost indicated by the phantom line in FIG. 1 or the position before the change indicated by the solid line. It is like that. By adopting such a configuration, each slide rail 10 is operated in the vicinity of the rearmost by operating the memory lever 6 from a state where the seat position is used at the driving position (solid line position) close to the front side. It is possible to use such as retreating to a position (virtual line position) at which it is easy to get on and off and then locking at that position.

  Each slide rail 10 is once locked at a position (virtual line position) near the rearmost, and then the memory lever 6 is operated again to change the seat position again to a position near the rearmost (virtual line position). (Line position) or the position before the change indicated by the solid line, the slide is locked (memory state). Since each of the slide rails 10 is configured as described above, the seat position is advanced by re-operating the memory lever 6 from the state where it is locked at the position near the rearmost (the imaginary line position) described above. The drive position (solid line position) before the change can be advanced at a stretch and returned to the locked state at that position.

  To summarize the above flow, the temporary backward movement of the seat position by the operation of the memory lever 6 and the returning operation to the driving position before the change after the backward movement are performed by the following procedure. . First, the memory lever 6 is pulled up from a state where the seat 1 is in an arbitrary use position (solid line position) such as a driving position (circled number 1 in FIG. 1). Next, the seat position is retracted and moved to a position (imaginary line position) near the rearmost where the movement is locked (circled number 2 in FIG. 1). As a result, the seat position is automatically locked at a position near the rearmost (imaginary line position), so that a wide boarding / alighting space is secured on the front side of the seat 1 and the boarding / alighting operation can be performed easily. It will be ready. The position near the rearmost where the seat position is locked (imaginary line position) is set to a position where the seat back 2 is substantially overlapped with the B pillar BP of the vehicle in the front-rear direction.

  Next, from the state where the seat position is locked at the position near the rearmost (imaginary line position), after the driver gets on the seat 1 and the like, the memory lever 6 is lifted again (circled in FIG. 1). Number 3). Then, the seat position is moved forward and moved to a use position (solid line position) such as a driving position before change in which the movement is locked (circled number 4 in FIG. 1). As a result, the seat position is automatically locked at the use position (solid line position) such as the driving position before the change, and as a result, the seat position is returned to the position before the change without fine adjustment of the use position. It can be easily restored.

  Further, as shown in FIG. 2, each slide rail 10 described above has a loop handle at an arbitrary position in a state (memory state) in which the position before the change of the seat position is stored by the operation of the memory lever 6 described above. By performing the pulling up operation 5, the unlocking holding state by the memory mechanism 20 described above is canceled by the action of the canceling mechanism 30 described later, and the sheet position can be brought into a locked state at that position. ing. Since each slide rail 10 is configured as described above, it is assumed that the seat position can be locked only at one of the two positions described above with reference to FIG. 1 by operating the memory lever 6 (memory state). However, when necessary, the memory state can be easily and appropriately canceled by simply operating the loop handle 5, and the seat position can be locked at an arbitrary position.

  1 to 2, the state in which the above-described sheet 1 is in the memory state by operating the memory lever 6 is represented by a lightly colored state on the sheet 1, and the sheet 1 is the loop handle 5. The state in which the memory state is canceled by the above operation is represented by a state in which the sheet 1 is not painted.

  Even if the memory state of each slide rail 10 described above is canceled by the operation of the loop handle 5 described above with reference to FIG. 2, the operation of the memory lever 6 is performed again before the cancel operation described above is performed. The memory state is restored. By adopting such a configuration, even if the memory state is once canceled by the operation of the loop handle 5 described above, each slide rail 10 can be operated by operating the memory lever 6 again from there. It is configured such that the state can be returned to the state before cancellation, and the seat position can be returned to the use position (solid line position) such as the driving position before the change at once.

<< Specific Configuration of Slide Rail 10 >>
Hereinafter, specific configurations of the slide rails 10, the memory mechanism 20, and the cancel mechanism 30 described above will be described in detail. First, the configuration of each slide rail 10 will be described with reference to FIGS. That is, each slide rail 10 includes a lower rail 11 attached on the floor F, an upper rail 12 attached to the lower portion of the seat cushion 3 so as to be slidable in the front-rear direction with respect to the lower rail 11, and both of these. And a lock spring 13 that locks the slide between the rails 11 and 12. Here, the lower rail 11 corresponds to the “fixed side rail” of the present invention, the upper rail 12 corresponds to the “movable side rail” of the present invention, and the lock spring 13 corresponds to the “lock mechanism” of the present invention.

  As shown in FIG. 5, the lower rail 11 described above is formed by bending a sheet of steel or the like that is long in the front-rear direction of the vehicle into a substantially U-shape in the lateral direction. The lower rail 11 described above is in a state in which the front and rear end portions thereof are fastened and fixed integrally on the floor F by fastening members such as bolts (not shown). The lower rail 11 is formed in a rail shape whose cross-sectional shape is substantially uniform in the front-rear direction. Specifically, the lower rail 11 includes a bottom surface portion 11A disposed on the floor F with the surface facing upward, and a reverse U extending from the left and right side portions of the bottom surface portion 11A upward to the inward sides. It is formed in a cross-sectional shape having a pair of left and right lower fin portions 11B that are bent and extended in a letter shape. The lower rail 11 is set such that the front and rear end portions of the bottom surface portion 11A are in surface contact with each other on the floor F from above and are inserted from above, such as bolts (not shown). The fastening member integrally fastens on the floor F.

  In the left and right lower fin portions 11B of the lower rail 11 described above, the corresponding lock portions 13C of the lock spring 13 described later are inserted from the lower side into the respective edge portions bent back in the inverted U shape. A lock groove 11C that can be engaged is formed. A plurality of these lock grooves 11C are arranged at regular intervals in the front-rear direction along the respective edge portions that are folded down and hung inside the lower-side fin portions 11B and have openings facing downward. It is in a state formed by. The lock grooves 11C formed in the lower fin portions 11B are formed side by side at symmetrical positions.

  Similar to the lower rail 11 described above, the upper rail 12 is formed by bending a sheet of steel or the like that is long in the longitudinal direction of the vehicle into a substantially Ω shape in the short direction. The above-described upper rail 12 is assembled into a state in which the upper rail 12 is slidable in the longitudinal direction with respect to the lower rail 11 by being inserted into the lower rail 11 from the opening end portion on either side in the longitudinal direction of the lower rail 11 described above. ing. Specifically, the upper rail 12 has a top plate portion 12A attached in a state in which the cross-sectional shape thereof faces the lower side of the above-described seat cushion 3 and the left and right side portions of the top plate portion 12A. And a pair of left and right upper fin portions 12B that are bent and extended in U-shapes on the outer sides opposite to each other.

  The above-described upper rail 12 has its respective end portions bent back in the U shape of the left and right upper side fin portions 12B with respect to the above described lower rail 11, and is opposite to the left and right lower side fin portions 11B of the lower rail 11. It is inserted and assembled in the longitudinal direction so as to engage with each shape bent back into a U shape. By being assembled in this way, the upper rail 12 is positioned in the height direction with respect to the lower rail 11 due to the engagement of the left and right upper fin portions 12B and the lower fin portions 11B. They are assembled in a state in which they are prevented from coming off in the sheet width direction. Specifically, the upper rail 12 is prevented from being loose in the height direction and the vehicle width direction with respect to the lower rail 11 via a resin shoe and a steel ball (rolling element) (not shown) assembled between the upper rail 12 and the lower rail 11. However, it is assembled in a state where it can slide smoothly in the front-rear direction.

  The lock spring 13 is formed by bending a single steel wire rod into a substantially U shape in plan view that is long in the front-rear direction. The lock spring 13 is formed as a folded portion whose rear end portion 13B is folded in the vehicle width direction and folded forward. Then, the lock spring 13 projects in a wavy shape toward the both sides in the sheet width direction at the middle part of each of the pair of left and right lines extending from the rear end 13B to the front side. A bent lock portion 13C is formed. Further, the front end portion 13A of each line portion of the lock spring 13 has a shape bent outwardly opposite to each other.

  The above-described lock spring 13 has each hook hole formed in the front region of the side wall portion of each upper-side fin portion 12B of the above-described upper rail 12 in which each portion of the front end portion 13A of each line portion described above is bent. By being hooked while being squeezed from the inside into 12Ba, it is attached as a pin-connected state in each hooking hole 12Ba so as to be rotatable. Further, the lock spring 13 is cut and raised at the inner side formed in the rear region of the side wall portion of each upper fin portion 12B of the upper rail 12 described above at the folded portion on both corners of the rear end portion 13B. By being hooked on each hooking piece 12Bb from above, it is attached to each hooking piece 12Bb in a state of being pin-coupled to be rotatable.

  With the above attachment, the lock spring 13 is such that the left and right lock portions 13C are passed from the lower side into the respective through grooves 12C formed in the central region of the side wall portions of the upper side fin portions 12B of the upper rail 12. It is assembled. The lock spring 13 has a front end portion 13A and a rear end portion 13B that are pin-coupled so as to be rotatable with respect to the upper rail 12, so that in the free state, each lock portion 13C described above is spring-biased. Thus, the upper rail 12 is held in a state where it enters the through grooves 12C of the upper rail 12 from below.

  In the lock spring 13 described above, the sliding position of the upper rail 12 in the front-rear direction with respect to the lower rail 11 is such that each through groove 12C formed in each upper fin portion 12B and each lock groove 11C formed in each lower fin portion 11B. Are aligned with each other so as to be aligned in the vehicle width direction so that they pass through the through groove 12C and the lock groove 11C from below. By passing in this way, the slide in the front-rear direction with respect to the lower rail 11 of the upper rail 12 is held in a locked state via the lock portions 13C of the lock spring 13 described above. The state in which the slide of the upper rail 12 with respect to the lower rail 11 is locked is a state in which the lock portion 13C of the lock spring 13 enters the lock groove 11C of the lower rail 11 in each of FIGS. 9, 12, 19, and 21. It is expressed as

  As shown in FIGS. 10 and 13, the above-described lock spring 13 is lowered by a memory link 34 constituting a cancel mechanism 30 described later by operating the loop handle 5 (see FIG. 10) or the memory lever 6 (FIG. 13). When pushed to the side, the locking portion 13C is pushed and bent downward by the release piece 34A of the memory link 34, and is released from the locking groove 11C of the lower rail 11. By the above operation, the locked state of the slide of the upper rail 12 by the lock spring 13 is released. Therefore, the upper rail 12 can be slid in the front-rear direction with respect to the lower rail 11 by the release operation. Thereafter, the state in which the lock spring 13 is pushed down by the memory link 34 is released, so that the lock spring 13 enters the lock groove 11C of the lower rail 11 by the spring biasing force again as shown in each drawing of FIG. To the locked state.

  At that time, as shown in FIG. 18, the lock position 11C of the lower rail 11 is positioned at the position where the slide position to which the upper rail 12 has moved is moved upward by the lock portion 13C of the lock spring 13 by the spring biasing force. When the shelf is not in the closed state, that is, when the shelf surface between the lock grooves 11C is positioned directly above, the lock portion 13C is returned only to the position where it contacts the shelf surface, and the slide is not locked. However, by shifting the slide position of the upper rail 12 from the slide position to the front side (or to the rear side if shifted to the rear side), the lock portion 13C is aligned with the lock groove 11C of the lower rail 11, and the lock groove 11C. It enters and locks (see FIG. 19).

  The above is the specific configuration of each slide rail 10 shown in FIG. In addition, a memory mechanism 20 and a cancel mechanism 30 to be described later are further assembled to the slide rails 10 arranged on the outer side (right side) in the vehicle width direction. With the above configuration, the slide rail 10 on the outer side in the vehicle width direction is unlocked by the lock spring 13 via the cancel mechanism 30 described later by operating the loop handle 5 or the memory lever 6. Yes. On the other hand, on the slide rail 10 disposed on the inner side (left side) in the vehicle width direction, the release member 14 configured to perform the unlocking operation of the lock spring 13 by the operation of the loop handle 5 or the memory lever 6 described above. Are assembled on the upper rail 12.

  The release member 14 is connected so as to rotate integrally with the memory link 34 via a rod 32 constituting a cancel mechanism 30 described later. With the above-described configuration, the release member 14 is arranged on the same side in accordance with the operation in which the memory link 34 described above is pushed downward by the operation of the loop handle 5 (see FIG. 10) or the memory lever 6 (FIG. 13). The lock spring 13 is configured to be unlocked. With the above-described configuration, each operation of locking and releasing each slide rail 10 is performed simultaneously and synchronously on the left and right by the operation of the loop handle 5 and the operation of the memory lever 6 described above.

  Further, a tension spring 15 is hooked between the upper rail 12 and the lower rail 11 on the slide rail 10 arranged on the inner side (left side) in the vehicle width direction described above with reference to FIG. Due to the spring biasing force exerted by the tension spring 15, a force in a direction in which the upper rail 12 is pushed forward relative to the lower rail 11 is always applied to both slide rails 10. Therefore, by releasing the slide lock state of each slide rail 10, the upper rail 12 can be slid forward with respect to the lower rail 11 with a light force.

  Further, on the slide rail 10 on the outer side (right side) in the vehicle width direction, the seat position is set to the position near the rearmost (the position of the imaginary line in FIG. A stopper bracket 16 is attached that restricts movement by abutment by retreating to (). As shown in FIGS. 5 to 6, the stopper bracket 16 is formed of a plate material such as steel bent in an L shape, and the bottom plate portion and the upright plate portion are connected to the bottom surface portion 11 </ b> A and the inner side of the lower rail 11. It is assembled as a state externally attached to the lower rail 11 so as to be along the outer surface portion of the (left side) lower fin portion 11B. The upright plate portion of the stopper bracket 16 has a shape protruding straight up to a position protruding above the outer surface portion of the lower side fin portion 11B of the lower rail 11.

<< Specific Configuration of Memory Mechanism 20 >>
Next, the configuration of the memory mechanism 20 will be described with reference to FIGS. That is, as shown in FIGS. 5 to 6, the memory mechanism 20 is roughly composed of a memory body 21 assembled to the lower rail 11 and a trigger 22 assembled to the upper rail 12. As shown in FIGS. 6 to 7, the former memory body 21 includes a memory plate 21A that is long in the front-rear direction, a memory slider 21B that is slidably assembled in the front-rear direction with respect to the memory plate 21A, and a memory The memory hook 21C is connected to the slider 21B and is configured to be detachable from the memory plate 21A. The latter trigger 22 includes a stopper link 22A assembled on the upper rail 12, and a rear stopper arm 22B and an operation cam 22C coupled to the stopper link 22A.

  The former memory body 21 is temporarily moved backward in the state where the position before the change of the position is stored by the operation of the memory lever 6 described above, or is moved to the position before the change such as the previously stored driving position after the reverse. As shown in FIG. 15, the member remains in a fixed position on the lower rail 11 and stores the position before the seat position is changed. The latter trigger 22 is temporarily moved backward in a state where the position before the change of the seat position is stored by the operation of the memory lever 6 described above, or to the position before the change such as the driving position previously stored after the reverse. 16 to 18, when returning, the stopper bracket 16 provided in the rear region of the lower rail 11 is pressed from the front side and pushed, or the memory body as shown in FIGS. 21 is a member that fulfills the function of detecting that it has reached each position by being applied from the rear side to 21 and pushed around.

  The configuration of the memory body 21 described above will be described in more detail. As shown in FIGS. 5 to 6, the memory plate 21 </ b> A is formed of a single plate material such as steel that is long in the front-rear direction. The memory plate 21A is set on the bottom surface portion 11A of the lower rail 11 so that the surface is directed in the height direction, and the respective front and rear sides thereof are fastened on the bottom surface portion 11A of the lower rail 11 by fastening members such as bolts. It is provided as an integrally fixed state. On the memory plate 21A, a plurality of rectangular memory holes 21Aa penetrating in the height direction are formed at equal intervals in the front-rear direction. The left and right sides of the memory plate 21A are formed with guide rails 21Ab that can support the memory slider 21B provided between the left and right sides and can be slid in the front-rear direction. .

  As shown in FIGS. 5 to 8, the memory slider 21 </ b> B is formed of a substantially flat plate member having a narrower lateral width than the memory plate 21 </ b> A described above. As shown in FIGS. 6 to 8, the memory slider 21B is inserted between the guide rails 21Ab formed on the left and right side portions of the memory plate 21A from either the front or rear direction, whereby the guide rails 21Ab As a state of being guided from both the left and right sides, the state is assembled in a form that is prevented from being peeled so as to be movable only in the front-rear direction with respect to the memory plate 21A. In the memory slider 21B described above, a receiving hole 21Ba opened upward is formed at the center in the front-rear direction. The receiving hole 21Ba is engaged / disengaged formed at the lower end portion of the release link 35 when the release link 35 constituting the cancel mechanism 30 described later in FIG. 10 is pushed down by the operation of the loop handle 5. The piece 35A is received from above and functions as a hole that makes the release link 35 integrally engaged with the memory slider 21B in the front-rear direction.

  As shown in FIGS. 6 to 8, the memory hook 21C is assembled to the front portion of the memory slider 21B as described above in a state where the memory hook 21C is rotatably connected by a shaft pin 21Ca whose axis is directed in the vehicle width direction. . The memory hook 21C normally applies a force in the direction of forward rotation about the shaft pin 21Ca with respect to the memory slider 21B by the biasing force of a spring (not shown) hooked between the memory hook 21B and the memory slider 21B. It is assumed that With the above configuration, as shown in FIG. 9, in the free state, the memory hook 21C has its front end portion inserted into any one of the memory holes 21Aa of the memory plate 21A described above and before and after the memory slider 21B. The direction slide is held in a locked state.

  As shown in FIG. 10, the memory hook 21 </ b> C has a pressure-receiving pressure formed at the upper edge when a release link 35 constituting a cancel mechanism 30 described later is pushed downward by operating the loop handle 5. The plate 21 </ b> Cb is pushed down by an engagement / disengagement piece 35 </ b> A formed at the lower end of the release link 35. With the above operation, the memory hook 21C removes the tip portion of the memory plate 21A that has entered the memory hole 21Aa from the memory hole 21Aa and releases the state where the slide of the memory slider 21B is locked. It is supposed to be. Further, when the memory hook 21C is released from the depressed state by the release link 35 after the above operation, the memory hook 21C enters the corresponding memory hole 21Aa of the memory plate 21A shown in FIG. ).

  Next, the configuration of the trigger 22 will be described in more detail. As shown in FIGS. 7 to 8, the stopper link 22 </ b> A is formed of a single sheet of steel or the like that is long in the height direction facing the vehicle width direction. The stopper link 22 </ b> A has an intermediate portion in the height direction that can be rotated to the inner surface side of the rear end portion of the base bracket 31 constituting the cancel mechanism 30, which will be described later, by a shaft pin 22 </ b> Aa whose axis is directed in the vehicle width direction. It is provided as a pin connected state. As shown in FIGS. 5 to 6, the base bracket 31 described above is a member that is provided on the top plate portion 12 </ b> A of the upper rail 12 as a state of being fastened and fixed integrally with a fastening member such as a bolt. ing. The above-described stopper link 22A is a lower part that normally extends downward with respect to the base bracket 31 around the shaft pin 22Aa by the biasing force of a spring (not shown) hooked between the above-described base bracket 31. A force is applied in the direction of raising the area to the front side.

  With the above configuration, as shown in FIG. 9, in the free state, the stopper link 22A is urged so that the front stopper arm 22Ac extending downward is raised to the front side. When the memory slider 21B is positioned adjacent to this position, the front-side stopper arm 22Ac is held in a standing posture with the memory slider 21B pressed against the memory slider 21B from the rear side. As shown in FIG. 15, when the seat position moves backward leaving the memory body 21 by operating the memory lever 6, the front stopper arm 22Ac is separated from the memory body 21 to the rear side. By the above-described spring biasing force, the front-side stopper arm 22Ac is held in an oblique posture in which the front-side stopper arm 22Ac is slightly raised to the front side. Specifically, as shown in FIGS. 5 to 6, the stopper link 22 </ b> A is assembled in a state where it is passed through the through hole 12 </ b> Aa formed in the top plate portion 12 </ b> A of the upper rail 12 described above. However, it is held in an inclined state up to a position corresponding to the rear edge of the through hole 12Aa.

  Further, as shown in FIGS. 16 to 18, the stopper link 22A is moved backward by the operation of the memory lever 6, and the rear stopper arm 22B attached to the stopper link 22A is moved to the lower rail 11 as shown in FIG. By being pushed into the stopper bracket 16 attached to the rear portion from the front side, the posture is raised in the same manner as shown in FIG. 9 along the shape of the front surface 16A with which the stopper bracket 16 abuts. The state is changed and held.

  As shown in FIG. 7, the rear stopper arm 22 </ b> B described above is formed by a substantially flat plate member that faces in the front-rear direction. The rear-side stopper arm 22B is an area portion formed by being bent from the rear portion on the upper edge side of the stopper link 22A to the inner side (left side) in the vehicle width direction by the shaft pin 22Ba having the axis line directed in the front-rear direction. It is provided in a state where it is pin-connected to the front side so as to be rotatable. As shown in FIG. 25, the rear-side stopper arm 22B is normally provided with a shaft pin 22Ba with respect to the stopper link 22A by the biasing force of the spring (not shown) hooked between the stopper link 22A and the stopper link 22A. A force that rotates counterclockwise in the figure is applied to the center.

  With the above configuration, in the free state, the rear stopper arm 22B has a stopper piece 22Bb formed so as to extend inward (left side) in the vehicle width direction, as shown by a solid line state in FIG. The above-described state where the sheet position protrudes to a position on the locus where it is brought into contact with the stopper bracket 16 when the seat position is retracted is brought into a state where the position is held by contact with the stopper link 22A. . As shown in FIG. 10, the rear stopper arm 22 </ b> B is configured so that the release stopper 33 of the rear stopper arm 22 </ b> B when the release operation member 33 constituting the cancel mechanism 30 to be described later is pushed by the operation of the loop handle 5. The arm piece 22Bc (see FIG. 7) that is bent forward from the outer edge (right side) in the vehicle width direction is moved so as to be pushed down by the bent tip piece 33B on the rear end side of the release operation member 33. It is like that.

  As a result of the above operation, the rear stopper arm 22B is held in a state in which the stopper piece 22Bb is retracted upward from the position where the stopper piece 22Bb contacts the stopper bracket 16, as shown by the phantom line state in FIG. . Therefore, when the seat position is changed by operating the loop handle 5 described above, even if the seat position is retracted, the stopper piece 22Bb does not hit the stopper bracket 16 and is not restricted in movement. Therefore, in this case, the seat position can be moved to a position further retracted than the position near the rearmost (the phantom line position in FIG. 1). When the operation of the loop handle 5 described above is returned, the rear stopper arm 22B is returned to a position where it comes into contact with the stopper bracket 16 shown by the solid line in FIG. 25 again by the spring biasing force. ing. The rear stopper arm 22B described above is not operated at all when the memory link 34 is operated by the operation of the memory lever 6 described above, as shown in FIGS.

  As shown in FIGS. 20 to 21, the stopper link 22 </ b> A described above is moved downward by temporarily returning the seat position by operating the memory lever 6 and returning it to the position before the change again. The front stopper arm 22Ac extending toward the front is pressed against the above-described memory slider 21B from the rear side, and is returned to and held in a standing posture as in the state shown in FIG.

  As shown in FIGS. 6 to 8, the operation cam 22 </ b> C is formed of a substantially flat plate member whose surface is directed in the vehicle width direction. The operation cam 22C is provided in a state of being rotatably connected to the inner surface side of the front region of the stopper link 22A described above by a shaft pin 22Ca having an axis line in the vehicle width direction. Further, the operation cam 22C has a restriction piece 22Cb formed by being bent from the rear portion to the outside (right side) in the vehicle width direction in a restriction hole 22Ab penetrating in a fan shape formed in the stopper link 22A. It is assembled as a state of passing in the width direction. With the above configuration, the operation cam 22C is in a state in which the rotation range with respect to the stopper link 22A is regulated within a range in which the regulation piece 22Cb contacts each edge of the regulation hole 22Ab.

  As shown in FIG. 9, the operation cam 22C is normally illustrated around the shaft pin 22Ca with respect to the stopper link 22A by the biasing force of a spring (not shown) hooked between the stopper link 22A described above. It is assumed that a force that rotates in the clockwise direction is applied. With the above configuration, in the free state, the operation cam 22C is held in a state in which movement is restricted by pressing the restriction piece 22Cb described above against the lower edge of the restriction hole 22Ab of the stopper link 22A. .

  As shown in FIG. 10, when the holding member 36 attached to the release link 35 constituting the cancel mechanism 30 described later is pushed and turned by the operation of the loop handle 5, the operation cam 22C moves to the front upper side. The operation protrusion 22Cc on the distal end side extending in a tapered shape is pressed from above by the pressure receiving arm 36C of the holding member 36 and is operated so as to be rotated counterclockwise around the shaft pin 22Ca. ing. However, the movement of the operation cam 22C, which is pushed by the above-described operation, rotates within the range in which the restriction piece 22Cb can move within the restriction hole 22Ab with respect to the stopper link 22A. The amount of operation movement pushed by the pressure receiving arm 36C of 36 is released, and then the rotational position is returned to the initial state by the spring biasing force, and the rotational positional relationship with the holding member 36 is reversed. Yes.

  When the operation of the loop handle 5 is returned after the above operation and the holding member 36 is returned to the position before the operation, the operation cam 22C is reversely operated by the pressure receiving arm 36C of the holding member 36. Receives a force that is pushed around. However, at this time, the operation cam 22C is restricted by the contact between the restricting piece 22Cb and the restricting hole 22Ab as described above, so that the holding member 36 is held by the operation protrusion 22Cc on the distal end side. The holding member 36 is returned to the pre-operation position shown in FIG. 9 as the release link 35 is moved back to the initial position while rotating in a push-back manner.

  The above-described operation cam 22C moves the seat position to the position near the rearmost by the operation of the memory lever 6 as shown in FIGS. 16 to 18, and as shown in FIGS. When returning to the storage position before the change, each of them functions so as to push the holding member 36 constituting the cancel mechanism 30 (described later) clockwise to the position where it is released from the holding position.

  That is, the operation cam 22C is normally in a state in which the rotational movement in the clockwise direction around the shaft pin 22Ca relative to the stopper link 22A is restricted by the above-described spring biasing force. For this reason, the operation cam 22C is pushed and rotated by each operation of moving the sheet position shown in each of the above drawings (FIGS. 16 to 18 and 20 to 21). It rotates integrally and pushes the holding member 36 described above to the cancel position. Note that the operation cam 22C described above is not operated at all when the memory link 34 is operated by the operation of the memory lever 6 described above, as shown in FIGS.

<< Specific Configuration of Cancellation Mechanism 30 >>
Next, the configuration of the cancel mechanism 30 will be described with reference to FIGS. That is, as shown in FIGS. 6 to 8, the cancel mechanism 30 is integrated with the base bracket 31 serving as a base, the rod 32 that is pin-coupled to the base bracket 31 so as to be rotatable, and the loop handle 5. A release operation member 33 that is attached and rotated about the rod 32 as an axis, a memory link 34 that is rotatably connected to the base bracket 31 and is rotated by operation of the memory lever 6, and a memory link 34 The release link 35 is connected to the base bracket 31 so as to be rotatable with respect to the base bracket 31 and is rotated by the operation of the loop handle 5, and the release link 35 is attached to the release link 35 so as to be detachable from the memory link 34. And a holding member 36.

  The base bracket 31 is formed of a single sheet of steel or the like that is long in the front-rear direction with the surface facing in the vehicle width direction. As shown in FIGS. 5 to 6, the base bracket 31 has a shape in which a lower edge portion of a front region thereof is bent inward (left side) in the vehicle width direction, and this portion is a top plate of the upper rail 12. It is provided on the portion 12A as a state of being integrally fixed by fastening with a fastening member such as a bolt. As shown in FIGS. 7 to 8, a locking piece 31 </ b> A that is bent inward in the vehicle width direction is also formed in the upper edge portion of the rear region of the base bracket 31. As shown in FIG. 9, the locking piece 31 </ b> A functions as a restricting portion that restricts movement of a release link 35, which will be described later, which is moved counterclockwise by a spring biasing force, by contact.

  As shown in FIGS. 6 to 8, the rod 32 is formed of a single circular steel pipe member whose axis is directed in the vehicle width direction. The rod 32 has an operation shaft 32A integrally attached to an outer end portion in the vehicle width direction, and is inserted into the front region of the base bracket 31 from the inner side in the vehicle width direction via the operation shaft 32A. It is in a state of being pin-coupled so as to be rotatable. The inner (left side) end of the rod 32 in the vehicle width direction is integrally connected to the release member 14 described above with reference to FIG.

  As shown in FIGS. 7 to 8, the release operation member 33 is formed of a single sheet of steel or the like that is elongated in the front-rear direction. The release operation member 33 is assembled in a state of being pivotally supported with respect to the rod 32 by passing the rod 32 described above in the vehicle width direction at a midway position in the front-rear direction. Yes. The release operation member 33 is assembled by integrally welding one end of the loop handle 5 described above to a portion extending forward from a midway point through the rod 32. Further, the portion of the release operation member 33 that extends from the midway point passed through the rod 32 to the rear side is bent in the crank shape on the outer side (right side) in the vehicle width direction and extends to the rear side. The operation arm 33A is configured.

  As shown in FIG. 9, the operation arm 33 </ b> A includes a position directly above a pressure receiving piece 35 </ b> D projecting to the inner side (left side) in the vehicle width direction formed at a lower edge portion of a release link 35 described later, and a holding member described later It is arranged so as to extend to the rear side through a position directly above the pressure receiving arm 36C that is formed at 36 and extends inward in the vehicle width direction. Further, as shown in FIG. 8, a tip piece 33 </ b> B that is bent outward (right side) in the vehicle width direction is formed at the end that extends to the rear side of the operation arm 33 </ b> A. The tip piece 33B is disposed so as to pass through a position immediately above the arm piece 22Bc formed on the rear stopper arm 22B constituting the memory mechanism 20 described above.

  As shown in FIG. 9, the release operation member 33 is normally applied to the base bracket 31 by the biasing force of a spring (not shown) that is hooked between the loop handle 5 and the frame of the seat cushion 3 (not shown). On the other hand, a force rotating in the counterclockwise direction shown in the drawing is applied around the rod 32. With the above configuration, in the free state, the release operation member 33 is held in a state where the loop handle 5 is pulled down, and the operation arm 33A is separated from the holding member 36 and the release link 35 in the height direction. The state is held at the posture position.

  As shown in FIG. 10, the release operation member 33 is rotated clockwise around the rod 32 by the operation of lifting the loop handle 5, and the pressure receiving arm 36C of the holding member 36 and the release arm 33A are released by the operation arm 33A described above. The pressure contact piece 35D of the link 35 is contacted from the upper side to push them downward, or the tip piece 33B is brought into contact with the arm piece 22Bc of the rear stopper arm 22B from the upper side to push it downward. It is like that.

  Specifically, the release operation member 33 comes into contact with the above-described members in the following order and pushes them downward as the loop handle 5 is lifted. . That is, as the release operation member 33 advances its rotational movement, first, as shown in FIG. 23, the operation arm 33A hits the pressure receiving arm 36C of the holding member 36 and pushes the holding member 36 downward. Next, as the rotational movement further proceeds, as shown in FIG. 24, the operation arm 33A hits the pressure receiving piece 35D of the release link 35 and pushes the release link 35 downward. Then, as the rotational movement further proceeds, as shown in FIG. 10, the tip piece 33B finally comes into contact with the arm piece 22Bc of the rear stopper arm 22B and pushes the rear stopper arm 22B downward. .

  As described above, the release operation member 33 is set to have a separation width in the height direction so as to come into contact with the above-described members in order and push them downward. With this configuration, when the release operation member 33 comes into contact with the release link 35 described above and pushes the release link 35 as shown in FIG. 23, the release operation member 33 pushes the holding member 36 first. The holding state at the release operation position of the memory link 34 by the holding member 36 can be released. Therefore, an overload is not applied such that the release operation member 33 is forcibly pushed in the release operation direction from the position where the memory link 34 is released.

  As shown in FIGS. 7 to 8, the memory link 34 is formed of a single sheet of steel or the like that is long in the front-rear direction with the surface facing in the vehicle width direction. In the memory link 34 described above, the operation shaft 32A integrally attached to the end portion of the rod 32 described above is passed through from the inner side (left side) in the vehicle width direction and integrally connected to the front region thereof. , A pin is rotatably connected to the inner surface side of the front region of the base bracket 31 via the operation shaft 32A. The above-mentioned rear region extending rearward from the front region passed through the rod 32 of the memory link 34 described above extends downward and is bent into a U-shape in plan view at the extended front position. A release piece 34A having a round shape is formed.

  As shown in FIGS. 6 and 9, the release piece 34 </ b> A described above is arranged so that the left and right pieces bent in a U shape in plan view are directly above the left and right lock portions 13 </ b> C of the lock spring 13 of the slide rail 10 described above. It is assumed that they are arranged in each. The release piece 34A is configured so that the memory link 34 is pushed downward by the operation of the loop handle 5 (see FIG. 10) or the operation of the memory lever 6 (FIG. 13). It functions so as to come out of the lock groove 11C of the lower rail 11 by abutting 13C from the upper side and pushing and bending to the lower side.

  Further, as shown in FIGS. 7 to 8, in the rear region of the memory link 34 described above, a vertically long shape curved in an arc shape drawn around the axis of the operation shaft 32 </ b> A that is the rotation center of the memory link 34. The hole 34B is formed in a shape penetrating in the vehicle width direction. The through-hole 34B has an operation piece 36B bent outward (right side) in the vehicle width direction formed in a holding member 36 described later that is rotatably attached to an inner surface side (left surface side) of a release link 35 described later. As a state of passing from the inner side in the vehicle width direction through the operation hole 35B formed in the release link 35, it functions as a hole for restricting the rotation range of the holding member 36.

  In the hole region on the upper end side of the through hole 34B, a lead-in hole 34Ba extended so that the hole shape partially extends to the rear side is formed. The lead-in hole 34Ba is formed in a shape curved in a circular arc shape that is concave on the upper rear side together with the hole region on the upper end side of the through hole 34B. The pull-in hole 34Ba is curved in a circular arc shape along a locus along which the operation piece 36B of the holding member 36 rotates around the shaft pin 36A that is the rotation center.

  As shown in FIG. 9, the memory link 34 is normally illustrated with the operating shaft 32 </ b> A as a center with respect to the base bracket 31 due to the biasing force of a spring (not shown) hooked between the memory bracket 34 and the base bracket 31 described above. A force that rotates counterclockwise is applied. With the above configuration, in the free state, the memory link 34 is locked at the upper edge portion of the rear region of the base bracket 31 described above with a flange 35C formed on the release link 35 described later. The piece 31A is pressed from below and held in a state where movement is restricted.

  As shown in FIG. 10, the memory link 34 is configured so that the release link 35, which will be described later, is rotated around the operation shaft 32 </ b> A by the operation of the loop handle 5 in the clockwise direction in the figure. It is pushed downward by the piece 35C and is pushed around. Further, as shown in FIG. 13, the memory link 34 is also centered on the operation shaft 32A in the same manner as described above by operating the memory lever 6 connected to the upper edge portion thereof via the memory operation cable 37. It is rotated in the clockwise direction in the figure. By these rotation operations, the release piece 34A formed at the lower end of the memory link 34 pushes and bends the lock portions 13C of the lock spring 13 downward to release the slide lock state of the slide rail 10. It has become.

  As shown in FIGS. 6 to 8, the release link 35 is formed of a single sheet of steel or the like that is long in the front-rear direction that faces in the vehicle width direction. The release link 35 described above is in a state in which the operation shaft 32A integrally attached to the end portion of the rod 32 described above is passed through from the inner side (left side) in the vehicle width direction and rotatably connected to the front region thereof. , A state is provided in which the pin is rotatably connected to the inner surface side (left surface side) of the front region of the base bracket 31 via the operation shaft 32A. The release link 35 is arranged side by side on the inner surface side (left surface side) of the memory link 34 disposed on the inner surface side of the base bracket 31 described above, and is coaxial with the memory link 34 (operation shaft 32A). It is provided in a state where it can rotate.

  As shown in FIG. 9, the release link 35 is normally shown with the operation shaft 32 </ b> A as a center with respect to the base bracket 31 by the biasing force of a spring (not shown) hooked between the base bracket 31 and the base bracket 31 described above. A force that rotates counterclockwise is applied. With the above configuration, in the free state, the release link 35 is formed with the flange 35 </ b> C formed on the upper edge portion of the rear region thereof by being bent outward (right side) in the vehicle width direction on the base bracket 31 described above. It is set to the state hold | maintained in the state by which it pressed against the latching piece 31A from the lower side, and the movement control was carried out.

  An engagement / disengagement piece 35A that protrudes downward is formed in the rear region that extends rearward from the front region that is passed through the rod 32 of the release link 35 described above. As shown in FIG. 10, the engagement / disengagement piece 35A is in a state in which the seat position is such that the stopper link 22A constituting the trigger 22 of the memory mechanism 20 described above is pressed against the rear side of the memory slider 21B in a standing posture. When the release link 35 is pushed down by the operation of the loop handle 5, the release link 35 is operated to be pushed into the receiving hole 21Ba of the memory slider 21B.

  By the pushing operation, the engagement / disengagement piece 35A comes into contact with the pressure receiving plate 21Cb of the memory hook 21C located immediately above the receiving hole 21Ba of the memory slider 21B from the upper side, and pushes the pressure receiving plate 21Cb downward while pushing the pressure receiving plate 21Cb downward. The device itself is also pushed into the receiving hole 21Ba of the memory slider 21B. By pushing in, the memory hook 21C is removed from the memory hole 21Aa of the memory plate 21A, and the engaging / disengaging piece 35A enters the receiving hole 21Ba of the memory slider 21B so that the release link 35 is integrated with the memory slider 21B in the front-rear direction. The state is engaged.

  Further, the release link 35 is operated so as to push down the memory link 34 located immediately below the flange 35C by the operation of being pushed down as described above. The locked state of the slide rail 10 by the lock spring 13 is released. Therefore, as shown in FIG. 11, the release link 35 pulls the memory slider 21B rearward by retracting the seat position in which the slide lock state is released while maintaining the operation state of the release link 35. Then, the memory slider 21B is moved backward together. In addition, during the forward movement, the release link 35 moves the memory slider 21B forward together so that the memory slider 21B is pulled forward. As a result, the memory slider 21B is moved in the front-rear direction to a position corresponding to the position after the change of the sheet position in accordance with the movement of the sheet position.

  The engagement / disengagement piece 35A is removed from the receiving hole 21Ba of the memory slider 21B by returning the operation of the loop handle 5 and returning the operation of the release link 35, and the pressure receiving plate 21Cb of the memory hook 21C. Release the push-in state. As a result, the memory hook 21C is returned to the state (locked state) that has entered the corresponding memory hole 21Aa of the memory plate 21A again by the spring biasing force.

  Further, as shown in FIGS. 7 to 8, in the rear region of the release link 35, the operation hole 35 </ b> B that penetrates in a circular arc shape like the pull-in hole 34 </ b> Ba formed in the memory link 34 described above. Is formed. As shown in FIG. 9, the operation hole 35B is lower than the pull-in hole 34Ba in the through hole 34B formed in the memory link 34 when the release link 35 and the memory link 34 are held at the initial positions. Positioned in the region, a part of the hole region on the lower end side of the through hole 34B and a part of the shape are overlapped in the vehicle width direction, and an operation piece 36B of the holding member 36 described later is straddled across the overlapping hole shape. It is designed to pass through in the width direction.

  As shown in FIGS. 13 to 14, the operation hole 35 </ b> B of the release link 35 described above is operated by the memory lever 6 described above, so that the memory link 34 is pushed down alone leaving the release link 35. When the memory link 34 is rotated to a position where it pushes and bends the lock spring 13 to a position exceeding the unlocking position (position in FIG. 12), the pull-in hole 34Ba formed at the upper end of the through hole 34B of the memory link 34 and the vehicle width direction It is designed to take a state of overlapping shapes. Then, as described above, the operation hole 35B of the release link 35 and the drawing-in hole 34Ba of the memory link 34 are overlapped, so that the operation piece 36B of the holding member 36 which will be described later is passed over these. As shown in FIG. 14, it is moved to a position where it enters the pull-in hole 34Ba by a spring biasing force. As a result, the rotational movement of the memory link 34 in the counterclockwise direction with respect to the release link 35 is restricted via the operation piece 36B of the holding member 36, and the memory link 34 is held at the release operation position. It becomes a state.

  Further, as shown in FIGS. 7 to 9, the lower edge portion of the intermediate region extending from the front region passed through the rod 32 of the release link 35 described above to the rear side has an inner side (right side) in the vehicle width direction. A pressure receiving piece 35D that is bent and extended is formed. As shown in FIG. 10, the pressure receiving piece 35 </ b> D has a lower edge portion of the operation arm 33 </ b> A of the release operation member 33 when the release operation member 33 described above is pushed downward by the operation of the loop handle 5. It is pressed from above and functions as a receiving portion that is pushed downward by the operating arm 33A. Note that the release link 35 described above is not operated at all when the memory link 34 is operated by the operation of the memory lever 6 described above, as shown in FIGS.

  As shown in FIGS. 7 to 8, the holding member 36 is formed of a single sheet of steel or the like whose surface is directed in the vehicle width direction. The holding member 36 can be rotated by an axial pin 36A having an axis line in the vehicle width direction at the inner surface side (left surface side) of the rear region of the release link 35 described above, specifically, the inner surface side position behind the operation hole 35B. It is provided as a pin connected state. The holding member 36 is formed with an operation piece 36 </ b> B that is bent and protrudes outward (right side) in the vehicle width direction at the front lower edge portion. In addition, a pressure receiving arm 36 </ b> C is formed at the rear lower edge portion of the holding member 36 so as to be bent and extend inward (left side) in the vehicle width direction.

  The operation piece 36 </ b> B described above is passed through the operation hole 35 </ b> B formed in the release link 35 and the through hole 34 </ b> B formed in the memory link 34 with the assembly of the holding member 36 to the release link 35. Can be assembled to. As a result of the assembly, the holding member 36 has a hole shape in which the operation hole 35B formed in the release link 35 and the through hole 34B formed in the memory link 34 overlap with each other in the vehicle width direction. Within the range, it is set in a state where it can be rotated with respect to the release link 35.

  The pressure receiving arm 36C extends from the holding member 36 to the inner side (left side) in the vehicle width direction, and is provided in a state where the arm shape is positioned immediately below the operation arm 33A of the release operation member 33 described above. As described above with reference to FIG. 23, the pressure receiving arm 36 </ b> C has the lower edge portion of the operation arm 33 </ b> A of the release operation member 33 when the release operation member 33 described above is pushed downward by the operation of the loop handle 5. Is pressed from above and functions as a receiving portion that is pushed downward by the operation arm 33A.

  As shown in FIG. 9, the holding member 36 described above is normally centered around the shaft pin 36 </ b> A with respect to the release link 35 by the biasing force of a spring (not shown) that is hooked between the release link 35. A force that rotates counterclockwise in the figure is applied. With the above configuration, the holding member 36 is in a rotational position where the operation piece 36B described above is pressed against the rear side surface of the through hole 34B of the memory link 34 in a state where the release link 35 and the memory link 34 are held at the initial positions. It is supposed to be held.

  As shown in FIG. 13, the holding member 36 rotates the memory link 34 to a position where the memory spring 6 pushes and deflects the lock spring 13 to a position beyond the unlocking position by operating the memory lever 6. As shown in FIG. 14, the pull-in hole 34 </ b> Ba formed at the upper end of 34 </ b> B and the operation hole 35 </ b> B of the release link 35 are overlapped with each other in the vehicle width direction, so that the operation piece 36 </ b> B described above is shown in FIG. Rotate to the position where it enters the drawing hole 34Ba. Accordingly, the holding member 36 is in a state in which the rotational movement of the memory link 34 with respect to the release link 35 in the counterclockwise direction is restricted via the operation piece 36B described above, and the memory link 34 is moved to the position where the release operation is performed. It comes to hold.

  As shown in FIGS. 22 to 23, when the holding member 36 is held at the position where the memory link 34 is released, the release operation member 33 is pushed downward by the operation of the loop handle 5. Thus, the release arm 33 is pushed clockwise by the operation arm 33A of the release operation member 33 to be removed from the drawing hole 34Ba. By the above operation, the holding state of the memory link 34 at the release operation position via the holding member 36 is released, and the memory link 34 is lowered to the flange 35C of the release link 35 by the spring biasing force as shown in FIG. The operation position is returned from the position to the pressed position. However, since the release link 35 is also operated so as to be pushed downward by the release operation member 33 by the operation of the loop handle 5, after the contact with the collar piece 35C, the release link 35 is again turned on. The lock spring 13 is operated to be pushed downward and bend downward again.

<Overall operation>
In summary, the memory mechanism 20 and the cancellation mechanism 30 described above are moved as follows by the operation of pulling up the loop handle 5 and the operation of lifting the memory lever 6 described above. That is, first, as shown in FIG. 9, when the seat 1 is in an initial state in which the operation of the loop handle 5 and the memory lever 6 is not performed, the cancel mechanism 30 moves each lock portion 13 </ b> C of the lock spring 13. The lower rail 11 is in a locked state by entering into each lock groove 11C. The memory mechanism 20 has a positional relationship in which the memory hook 21C of the memory body 21 enters and locks into the memory hole 21Aa of the memory plate 21A, and the trigger 22 is pressed against the memory slider 21B from the rear side. It is supposed to be in a state that constitutes.

  When the lifting operation of the loop handle 5 is performed from the initial state, as shown in FIG. 10, the release operation member 33 is rotated about the rod 32 in the clockwise direction as shown in the figure, and the holding member 36 and the release link 35 are thereby rotated. And the memory link 34 are sequentially rotated in the clockwise direction in the figure. As a result, the lock spring 13 is pushed and bent downward via the memory link 34, and the lock state of the slide is released. Further, the engaging / disengaging piece 35A of the release link 35 enters the receiving hole 21Ba of the memory slider 21B while pushing the pressure receiving plate 21Cb of the memory hook 21C downward, and the memory slider 21B moves integrally with the release link 35 in the front-rear direction. It becomes a state that can be done. Further, the rear stopper arm 22B constituting the trigger 22 of the memory mechanism 20 is also pushed out by the release operation member 33 and can be brought into contact with the stopper bracket 16 attached to the rear portion of the lower rail 11. It is in a state of being rejected from the position.

  Therefore, as shown in FIG. 11, while the loop handle 5 is pulled up, the seat 1 is moved in the front-rear direction and the upper rail 12 is slid in the front-rear direction with respect to the lower rail 11, thereby pulling the memory slider 21B together. The seat position can be changed. In this case, since the rear stopper arm 22B does not come into contact with the stopper bracket 16 even if the seat position is largely retracted to a position near the rear most, the seat position is largely retracted to the rear most position. Can do. Then, by returning the operation of the loop handle 5 after the movement, the cancel mechanism 30 and the memory mechanism 20 are returned to the initial position shown in FIG. 9, and the seat position can be locked at the changed position. With the above operation, the seat position adjustment operation using the loop handle 5 is completed.

  Next, returning to the initial state shown in FIG. 9 above, when the memory lever 6 is operated, the memory link 34 is rotated clockwise as shown in FIG. 12 to FIG. The lock spring 13 is pushed downward by the memory link 34 by being rotated in the direction, and the slide lock state is released. At the same time, as shown in FIG. 14, the holding member 36 is moved so as to be drawn into the drawing hole 34Ba of the memory link 34, and the memory link 34 is held at the position where the lock spring 13 is released. It becomes the state.

  Therefore, even if the operation of the memory lever 6 is returned after the above operation, the memory link 34 is maintained in the released state, so that the seat position can be moved backward from this position (see FIG. 15). However, the seat position cannot be advanced from the above position. The reason is that the memory hook 21C enters the memory hole 21Aa of the memory plate 21A and remains locked, and the stopper link 22A is not moved back to the memory slider 21B at the fixed position even if the seat position is advanced. It is because it cannot move by hitting from the side.

  After the operation of the memory lever 6, as shown in FIG. 16, when the seat position is retracted to a position where the rear stopper arm 22B of the trigger 22 contacts the front surface 16A of the stopper bracket 16, further backward movement proceeds therefrom. Accordingly, as shown in FIGS. 17 to 18, the stopper link 22 </ b> A to which the rear stopper arm 22 </ b> B is attached is in a state where the rear stopper arm 22 </ b> B is pushed over the front surface 16 </ b> A of the stopper bracket 16. Until it is pushed counterclockwise. Then, by this rotation, as shown in FIG. 17, the operation cam 22C attached to the stopper link 22A pushes the holding member 36 clockwise, and the holding state of the memory link 34 at the release operation position by the holding member 36 Is released. As a result, as shown in FIG. 18, the memory link 34 is returned to the initial position before the release operation, and the lock spring 13 is restored in the direction of entering the lock groove 11 </ b> C of the lower rail 11.

  However, at the above position, the position of the lock groove 11C is shifted so that the lock groove 11C of the lower rail 11 is not positioned on the movement trajectory restored by the lock spring 13, so that at the above position, the lock spring 13 is locked to the lock groove of the lower rail 11. It is set not to enter 11C and lock. Accordingly, by shifting the seat position slightly forward as shown in FIG. 19 from the above state, the lock spring 13 is aligned with the lock groove 11C of the lower rail 11, and enters and locks into the lock groove 11C. With such a configuration, the lock spring 13 can be appropriately locked at a position in the vicinity of the rearmost even if an installation error occurs between the components. With the above-described lock, the seat position can be temporarily locked at a position near the rearmost (the phantom line position in FIG. 1), and is held in a state where a large boarding / alighting space is secured on the front side of the seat 1. .

  Next, when the memory lever 6 is operated again from the state where the seat position is locked at the position near the rearmost (the phantom line position in FIG. 1), as shown in FIG. The lock spring 13 is removed from the lock groove 11C by being operated so as to be pushed downward. Then, the memory link 34 is again held at the release operation position by the holding member 36. That is, the cancel mechanism 30 is returned to the same state as the previous state shown in FIG. Therefore, even if the operation of the memory lever 6 is returned after the above operation, the memory link 34 is held in the released state, so that the seat position can be advanced from this position.

  Thereafter, as shown in FIG. 21, when the seat position is advanced to a position where the front stopper arm 22Ac of the stopper link 22A hits the rear surface of the memory slider 21B, the stopper link 22A is further advanced as the forward movement proceeds therefrom. However, like the movement described above with reference to FIGS. 17 to 18, the holding member 36 is pushed clockwise by the operation cam 22C to release the holding state of the memory link 34 at the release operation position. As a result, the memory link 34 is returned to the initial position before the release operation, and the lock spring 13 is restored in the direction of entering the lock groove 11 </ b> C of the lower rail 11. As a result, when the seat position is returned to the previous position shown in FIG. 9, the slide is returned to the initial state where the slide is locked.

  Also, as shown in FIG. 22, after the operation of the memory lever 6 described above, the seat 1 is between the storage position before the change (solid line position in FIG. 2) and the position near the rearmost (virtual line position in FIG. 1). When the above-described operation of pulling up the loop handle 5 is performed in the state of being moved to the intermediate position, as shown in FIG. 23, the release operation member 33 is again rotated about the rod 32 in the clockwise direction shown in the figure. . Accordingly, as the rotation operation of the release operation member 33 proceeds, the holding member 36 is first pushed by the release operation member 33, and the holding state of the memory link 34 at the release operation position is released. As a result, as shown in FIG. 24, the memory link 34 is returned to the initial position before the release operation, and the lock spring 13 is restored in the direction of entering the lock groove 11 </ b> C of the lower rail 11.

  Therefore, if the operation of the loop handle 5 is returned after the above operation, the lock spring 13 enters the lock groove 11C of the lower rail 11, and the seat position is locked at that position. Further, if the loop handle 5 is further pulled up after the above operation, as shown in FIG. 10, the release operation member 33 pushes the release link 35 downward and the memory link 34 is pushed downward again to slide. Can be unlocked.

  When the memory lever 6 is operated again after the loop handle 5 is operated, the memory link 34 is operated to be pushed downward again, and the lock spring 13 is removed from the lock groove 11C. Then, the memory link 34 is again held at the release operation position by the holding member 36. That is, the cancel mechanism 30 is returned to the same memory state as that shown in FIG. Therefore, even if the operation of the memory lever 6 is returned after the above operation, the memory link 34 is maintained in the released state, so that the seat position can be moved from this position while maintaining the memory state. Become.

<< Configuration of the operation tool 40 >>
As shown in FIGS. 4 and 26, an operating body 40 is interposed between the memory lever 6 and the memory link 34 described above to transmit the operation movement amount that the memory lever 6 is pulled up to the memory link 34. Is provided. As shown in FIGS. 27 to 29, the operating body 40 includes a base plate 41 that serves as a base, and a driving node 42 that includes a memory lever 6 itself that is rotatably connected to the base plate 41. A follower node 43 that is pushed by contact with the node 42, and a memory operation cable that is pulled by the follower node 43 to be pushed and pushes the memory link 34 downward as shown in FIGS. 44. Here, the memory operation cable 44 corresponds to the “operation member” of the present invention.

  As shown in FIGS. 27 to 29, the base plate 41 is formed of a single sheet of rectangular steel or the like whose surface is directed in the vehicle width direction. The base plate 41 is integrally fixed to an outer side (right side) of the seat cushion 3 (not shown) in the vehicle width direction.

  The driving node 42 is constituted by the memory lever 6 itself. The driving node 42 is provided in a state of being rotatably connected to the outer surface side (right surface side) of the above-described base plate 41 by a shaft pin 42A having an axis line directed in the vehicle width direction. A torsion spring 42B is hooked between the driving node 42 and the base plate 41 so as to be inserted into the shaft pin 42A. Due to the spring biasing force of the torsion spring 42B, the driving node 42 is always in a state in which a force that moves the base plate 41 about the shaft pin 42A in the clockwise direction is applied. With the above configuration, the memory lever 6 is held in a state where it is lowered to the initial position before the operation as shown in FIG. 28 in the initial state with respect to the base plate 41. The rotational movement in the clockwise direction shown in the figure by the urging of the memory lever 6 is locked at the initial position by contact with a stopper (not shown) formed on the base plate 41.

  A swing link 42 </ b> C configured to be able to rotate around an axis parallel to the prime mover 42 is connected to the prime mover 42 described above. The swing link 42 </ b> C is formed of a single vertically long steel plate whose surface is directed in the vehicle width direction. The upper part of the swing link 42C is formed on the rear lower side of the shaft pin 42A of the driving node 42 by an axis pin 42D formed so as to extend from the driving node 42 to the inner side (left side) in the vehicle width direction. It is provided as a state where it is rotatably pin-connected to a region on the inner surface side (left surface side) that is separated. A torsion spring 42E is hooked between the swing link 42C and the driving node 42 so as to be inserted into the shaft pin 42D.

  Due to the spring biasing force of the torsion spring 42E, the swinging link 42C is always in a state in which a force that is moved in the clockwise direction in the figure around the shaft pin 42D is applied to the driving node 42. With the above configuration, the swinging link 42C is held in the initial state in a form in which the link shape is extended downward with respect to the driving node 42 as shown in FIG. Yes. The rotational movement in the clockwise direction shown in the figure by the urging of the swing link 42C is locked at the initial position by the surface contact in the rotational direction with the stopper surface 42F formed on the driving node 42. Yes. With the above configuration, the swing link 42C rotates against the spring node 42 in the counterclockwise direction in the figure from the initial position where the swing link 42C is locked by contact with the stopper surface 42F. However, it cannot rotate in the opposite direction (clockwise direction in the figure).

  As shown in FIGS. 27 to 29, the follower node 43 is formed of a single sheet of vertically long steel or the like whose surface is directed in the vehicle width direction, similar to the above-described swing link 42 </ b> C. The follower node 43 is rotated at its lower region to the region on the outer surface side (right surface side) of the base plate 41 directly below the shaft pin 42A of the driving node 42 by the shaft pin 43A having an axis line in the vehicle width direction. It is provided as a pin-coupled state. A torsion spring 43B is hooked between the follower node 43 and the base plate 41 so as to be inserted into the shaft pin 43A.

  Due to the spring biasing force of the torsion spring 43B, the follower 43 is always in a state in which a force to be moved in the counterclockwise direction shown in the figure around the shaft pin 43A is applied to the base plate 41. With the above-described configuration, the follower node 43 is held in the initial state as shown in FIG. 28, with the link shape extending upward with respect to the base plate 41. The rotational movement in the counterclockwise direction shown in the figure by the biasing of the follower node 43 is locked at the initial position by the surface contact in the rotational direction with the stopper piece 41A formed at the lower end of the base plate 41. It has become. With the above configuration, the driven node 43 can rotate against the spring force in the clockwise direction in the figure from the initial position where it is locked with the base plate 41 by contact with the stopper piece 41A. Although it can, it cannot be rotated in the opposite direction (counterclockwise direction in the figure).

  As shown in FIG. 28, the follower link 43 described above has an upwardly extending link shape, and the swing link 42C of the drive link 42 is integrated with the drive link 42 in the initial state. It is provided as a state extending to a position overlapping with the movement locus when rotated counterclockwise in the figure around 42A. With the above configuration, as shown in FIG. 30, the driven node 43 is moved by the swing link 42 </ b> C that rotates integrally with the memory lever 6 (the driving node 42) when the memory lever 6 is pulled up from the initial state. In the form of being pushed and kicked, it is rotated about the shaft pin 43A in the clockwise direction in the figure.

  Specifically, as shown in the phantom line state of FIG. 30, the follower node 43 has a contact point 43C with the swing link 42C that starts to be pushed against the swing link 42C by the operation of lifting the memory lever 6 described above. The rotation center of the driven node 43 (center of the shaft pin 43A) and the rotation center of the memory lever 6 (drive node 42) (center of the shaft pin 42A) are set at positions on the line 40L. . With the above configuration, a strong rotational torque is exerted from the memory lever 6 (the driving node 42) to the driven node 43, and the driven node 43 is easily pushed and rotated with a light force.

  As shown in FIGS. 27 to 29, the memory operation cable 44 has a double cable structure in which a linear member 44B is inserted into a flexible tubular member 44A. The end of the tubular member 44A is hooked and fixed to a cable hook 41B formed on the rear edge of the base plate 41 at one end of the memory operation cable 44 shown in the drawing. The end of the linear member 44B that has been fed out to the front side is hooked and fixed in the middle of the link shape that extends upward as described above (the location that is lower than the contact point 43C described above). Yes. Further, as shown in FIG. 9, the memory operation cable 44 is fixed at the other end by hooking the end of the tubular member 44A to a cable hook (not shown) formed on the base plate 41 described above. The end portion of the linear member 44 </ b> B fed forward from the end portion is hooked and fixed to the upper end portion of the memory link 34 described above.

  As shown in FIG. 28, the memory operation cable 44 is more specifically described as follows. The linear member 44B fed out from the end of the tubular member 44A fixed to the cable hanging portion 41B of the base plate 41 described above includes the cable hanging portion. 41B and the driven node 43 are arranged so as to extend straight and perpendicular to a line segment 40L connecting the rotation center (the shaft pins 43A and 42A) of the driven node 43 and the driven node 42. ing. With the above configuration, as shown in FIG. 30, the memory operation cable 44 is efficiently extended by the follower 43 when the follower 43 is pushed and kicked in the clockwise direction as shown in the drawing by the operation of lifting the memory lever 6 described above. Towed. When the memory operation cable 44 is pulled by the follower node 43 as described above, the memory link 34 is moved along the operation shaft 32A by the linear member 44B on the other end side as shown in FIGS. It is designed to rotate so that it can be pushed down to the center.

  Then, as shown in FIG. 14, the memory operation cable 44 is pushed down to the release operation position by the pulling operation described above and rotated to the position where the release link 35 is held by the holding member 36. As shown in FIG. 31, the pushing state of the driven node 43 by the driving node 42 described above is released, and the traction operation force applied from the driven node 43 is released. With the above configuration, after the memory link 34 is held in the release position by the holding member 36, the memory operation cable 44 is in the release operation position of the memory link 34 as described above with reference to FIGS. 16 to 18 and 21. When the memory link 34 is moved to a position where the holding state is released, the movement of the memory link 34 to be returned to the initial position by the spring biasing force is not hindered.

  That is, as shown in FIG. 31, the seat position is moved to the state position shown in FIGS. 16 to 18 and 21 with the memory lever 6 being pulled up, and the memory link 34 is released at the release operation position. Even if the holding state is released, the traction operation force applied to the memory link 34 from the memory operation cable 44 is released, so that the memory link 34 is moved by the spring biasing force without returning the operation of the memory lever 6. It can be quickly returned to the initial position.

  Specifically, as shown in FIG. 30, the follower 43 that applies the pulling operation force to the memory operation cable 44 described above starts to be pushed against the swing link 42C by the operation of pulling up the memory lever 6 described above. A configuration in which the contact 43C is set at a position on a line segment 40L that connects the rotation center of the follower node 43 (center of the shaft pin 43A) and the rotation center of the memory lever 6 (drive node 42) (center of the shaft pin 42A). It is said that. The tip of the swing link 42C that pushes and rotates the follower node 43 has a truncated shape. First, the front side of the truncated shape (shown in the figure) as the rotational movement of the memory lever 6 pulls up. The corner of the counterclockwise direction) is pushed against the tip end region of the inclined surface on the rear side (counterclockwise direction in the figure) of the driven node 43 so as to push the driven node 43 around. Then, as the rotation of the swing link 42C further advances, as shown in FIG. 31, the contact point with respect to the driven node 43 is rearward from the truncated head surface (clockwise direction in the figure). While the diameter is gradually changed to the corners, the radial allowance with the driven node 43 is gradually reduced.

  With the above configuration, the follower node 43 is easily removed from the contact state with the swing link 42C in a short rotation range. Therefore, by operating the memory lever 6, the driven node 43 can be quickly removed from the contact state with the swing link 42C in the operation process and switched to a state where the operation load is removed. As a result, even if the seat position is quickly moved to the state position shown in FIGS. 16 to 18 and 21 after the operation of the memory lever 6, the traction operation state of the memory operation cable 44 is released with good response in time. Therefore, the seat position can be quickly and appropriately locked at the state positions shown in FIGS.

  More specifically, as shown in FIG. 31, after the driven node 43 is removed from the contact state with the swing link 42C, it is returned to the initial position before being pulled by the spring biasing force of the torsion spring 43B. It has come to return positively and promptly. Therefore, the inertia operation due to the driven node 43 being pushed and kicked by the operation of the memory lever 6 is hardly left on the memory operation cable 44, and the pulling operation is applied to the memory operation cable 44 by the spring biasing force of the torsion spring 43B. The force is quickly canceled and the memory operation cable 44 is actively returned to a state in which it is difficult to apply a resistance force to the force pulled from the other end side.

  When the driven node 43 is returned to the initial state by the spring biasing force, the positional relationship in the rotational direction between the driven node 43 and the swing link 42C of the driving node 42 is reversed from the initial state. Therefore, when the operation of the memory lever 6 is returned from this state toward the initial position, as shown in FIG. 32, the swing link 42C presses against the driven node 43 from the opposite direction to the previous operation. Will be. However, when the swing link 42C is pressed against the driven node 43 returned to the initial position from the reverse direction as described above, the driven node 43 cannot be rotated in the direction pushed back by the swing link 42C. On the other hand, the swing link 42 </ b> C can rotate in the direction pushed back by the follower node 43. Accordingly, as the swing link 42C is rotated back in the counterclockwise direction with respect to the driving node 42 in a form of being pushed back by the driven node 43 as the return rotation of the driving node 42 proceeds, It is designed to get over the driven node 43 and return to the initial position in such a way that the hit is released by swinging. After the swinging link 42C gets over the driven node 43, the rotational position with respect to the driving node 42 is returned to the initial position by the urging force of the torsion spring 42E.

<Summary>
In summary, the sheet 1 of the present embodiment has the following configuration. That is, a vehicle seat (seat 1) having an operating body (operating body 40) configured to release a lock mechanism (lock spring 13) that locks the seat position by an operation load to be held at the operating position. It is. The operating body includes a driving node (driving node 42) that is rotated by an input of an operation load, a driven node (driven node 43) that is rotated by contact with the driving node, and a driven node that is rotated. And an operation member (memory operation cable 44) for releasing the lock mechanism. The driving node and the driven node are arranged such that the respective rotation centers (axial pins 42A, 43A) are radially separated, and the driving node is driven by rotation on a line segment (line segment 40L) connecting the rotation centers. When the driven node is pushed around the node and pushed around, the contact with the driving node is removed by the progress of rotation when the driven node exceeds the rotation range for releasing the lock mechanism, and the state can return to the initial position before the operation. It becomes the composition which becomes. By adopting such a configuration, a strong rotational torque is exerted from the driving node to the driven node, and the driven node is easily pushed with a light force, and the driven node is connected to the driving node in a short rotation range. It becomes easy to remove from the contact state. Therefore, the driven node can be quickly removed from the contact state with the driving node in the operation process and switched to the state where the operation load is removed.

  In addition, a spring (torsion spring 43B) that applies a biasing force to the driven node (driven node 43) toward the initial position before the operation is provided. With such a configuration, the driven node can be quickly removed from the contact state with the driving node (the driving node 42) in the operation process, and can be switched to a state in which the operation load is unloaded.

  Further, the operating member intersects the line segment (line segment 40L) connecting the rotation center (axis pins 42A, 43A) with the driven node (driven node 43) (in this embodiment, in the present embodiment). The cable (memory operation cable 44) is arranged so as to extend vertically, and the cable is pulled by pushing the driven node to perform the release operation of the lock mechanism (lock spring 13). . With such a configuration, the operation member can be pulled longer and more efficiently by the movement of the driven node being pushed.

  Further, the memory mechanism (memory mechanism 20) is configured to store the position before the change of the sheet position and return the position to the position before the change. The operation member (memory operation cable 44) is configured to be held at the operation position by releasing the lock mechanism (lock spring 13) while the memory mechanism is in a state of storing the position. The memory mechanism is configured to operate so as to return the lock mechanism to the locked state when the seat position is moved to a predetermined position. With such a configuration, even if the seat position is quickly moved to a predetermined position after the lock mechanism is released by the operation of the operation member, the operation member is quickly unloaded after the release operation. Therefore, the lock mechanism can be quickly and appropriately returned to the locked state.

  Further, the driving node (the driving node 42) has a one-way middle folding type hinge structure (the swing link 42C), and when the driving node (driven node 43) is pushed around by the input of the operation load, the driving node (the driving node 43) is bent. However, when the rotational position relationship with the driven node is returned from the reversed state, the movement pressed against the driven node from the reverse direction is returned to the initial rotational position while escaping by the middle break. With such a configuration, it is possible to smoothly return the driving node from the rotated state to the rotation range where the rotational positional relationship with the driven node is reversed.

  Then, the structure of the sheet | seat 1 (vehicle seat) of Example 2 is demonstrated using FIGS. 34-35. In the present embodiment, an operation for storing the position before the change of the sheet position and changing the sheet position, that is, an operation for pushing down the memory link 34 described above with reference to FIGS. The operation is not performed by manual operation of the memory lever 6 shown in FIG. 6 but by electric operation by operation of a memory switch 7 provided at a predetermined position of the seat 1 (or a position such as a switch base of a door (not shown)). It has become.

  Specifically, as shown in FIG. 34, the operating body 40 is replaced with a driving node 42 on the output shaft 40B of the electric motor 40A driven by the operation of the memory switch 7, instead of the memory lever 6 shown in the first embodiment. Are connected to each other. The electric motor 40 </ b> A is integrally attached to the base plate 41, and is provided so that its output shaft 40 </ b> B can rotate with respect to the base plate 41. A driving node 42 is integrally connected to the output shaft 40B. The electric motor 40A is configured to rotate the output shaft 40B in the counterclockwise direction shown in the figure and the driving node 42 in the same direction by operating the memory switch 7. The electric motor 40 </ b> A is detected by the limit switch 40 </ b> S attached on the base plate 41 so that the drive is stopped when the prime mover 42 is rotated once and returned to the initial position before the operation. It has become. The limit switch 40S switches a signal so that the drive node 42 is pressed down to stop driving the electric motor 40A when the drive node 42 makes one rotation and returns to the initial position before the operation. .

  With the above configuration, as shown in FIG. 35, while the driving node 42 makes one rotation by one operation of the memory switch 7, the driven node 43 is kicked by the driving node 42 and the memory operation cable 44 is pulled. be able to. The positional relationship between the driving node 42 and the driven node 43, such as the position of the contact point 43C where the driving node 42 starts to contact the driven node 43, and the position where the contact of both of the driving nodes 42 comes off, is the structure shown in the first embodiment. Therefore, the same reference numerals as those in the first embodiment are used and the description thereof is omitted. In this embodiment, since the driving node 42 is configured to rotate once, the rotational position relationship between the driving node 42 and the driven node 43 is not reversed. The one-way middle folding type hinge structure (the swing link 42C: see FIG. 33) as shown in FIG. Other configurations are the same as the configurations shown in the first embodiment, and therefore, the same reference numerals are given and description thereof is omitted.

<Summary>
Thus, in this embodiment, the driving node (the driving node 42) is configured to be driven to rotate in one direction (counterclockwise direction in the drawing) by driving the electric motor (electric motor 40A). It is configured to be stopped at the initial position by a switch (limit switch 40S). Thus, by using the limit switch, it is possible to provide a simple configuration in which the prime mover is simply rotated in one direction.

  Then, the structure of the sheet | seat 1 (vehicle seat) of Example 3 is demonstrated using FIGS. In the present embodiment, as in the configuration shown in the second embodiment, the driving node 42 is integrally connected to the output shaft 40B of the electric motor 40A driven by the operation of the memory switch 7. The driving node 42 is not intermittently rotated only in one direction by the operation of the memory switch 7, but the rotation range is kept within a certain range as in the configuration shown in the first embodiment. Has been. Specifically, the rotational section in the front-rear direction with respect to the base plate 41 is regulated within a range in which the prime mover 42 is in contact with these by the rear stopper 41C1 and the front stopper 41C2 attached at two positions on the front and rear of the base plate 41. It has been configured.

  The electric motor 40A that rotates the prime mover 42 is driven to rotate the prime mover 42 forward from the initial position when the memory switch 7 is operated. In the electric motor 40A, the driving node 42 is applied to the front stopper 41C2, so that an overcurrent associated therewith is detected, and the driving direction is switched so as to rotate the driving node 42 in the reverse direction. . Then, when the prime mover 42 is applied to the rear stopper 41C1, an overcurrent associated therewith is detected to stop the drive, and the prime mover 42 is returned to the initial position.

  The driving node 42 is provided with a one-way middle-folding hinge structure (swing link 42C) that is the same as the configuration shown in the first embodiment. With the above-described configuration, the driving node 42 is moved to the initial position before the operation while escaping the rotational positional relationship with the driven node 43 that has been reversed by the rotation in the forward direction as shown in FIG. It is supposed to be returned. Since the other configuration is the same as that shown in the first or second embodiment, the same reference numerals are given and description thereof is omitted.

<Other embodiments>
As mentioned above, although embodiment of this invention was described using the three Examples, this invention can be implemented with various forms other than the said Example. For example, the configuration of the vehicle seat according to the present invention includes a seat that is applied to a vehicle other than an automobile such as a railway, a seat other than a driver's seat of an automobile, and a seat that is provided for various vehicles such as an aircraft and a ship. It can also be widely applied to.

  The slide rail may change the seat position in the vehicle width direction. Further, the slide rail may be used in such a manner that the fixed rail is tilted sideways by being attached to the side wall of the vehicle. As an example used in such an application, as disclosed in a document such as Japanese Patent Application Laid-Open No. 2010-274738, the application of connecting the seat back to a state in which the backrest angle can be adjusted with respect to the vehicle side wall. The ones used in are listed.

  Further, the lock mechanism is not limited to a configuration in which the spring itself attached to the upper rail (movable side rail) as shown in the above embodiment enters and locks into the lock groove of the lower rail (fixed side rail) by urging. Absent. For example, even if the lock claw attached to the upper rail enters into the lock groove of the lower rail by a spring biasing force and is locked as disclosed in documents such as Japanese Patent Application Laid-Open No. 2014-189218. Good. The operation member for releasing the lock mechanism may be constituted by a link or a slider in addition to the cable. Further, the cable as the operation member does not necessarily have to be routed so as to extend perpendicularly to the line segment from the line segment connecting the rotation centers to the driven node, but extends in the intersecting direction. Preferably it is.

  In addition, "the state where the contact with the driving node is removed by the progress of rotation when the driven node exceeds the rotation range for releasing the locking mechanism and can return to the initial position before the operation" means Does not indicate that the lock mechanism is returned to the initial position and the lock mechanism is returned to the locked state, but the operation that the lock mechanism tries to return to the locked state as a state in which the follower can return to the initial position. Is a state in which the holding at the release operation position is released. The driven mechanism may be in such a state (a state in which the driven node can return to the initial position), so that the lock mechanism may be in the locked state again. However, the lock mechanism is disclosed in JP 2012-131251 A. As in the so-called interlock mechanism disclosed in the literature, etc., the object is locked by being pushed in, and after the unlocking operation by the follower is performed, even if the releasing operation is released, the object is On the other hand, it may not be automatically locked, but may be in a “lockable state” in which it can be locked by performing a separate pushing operation. By applying the configuration of the present invention to such an interlock mechanism, even if an operation for quickly pushing the lock mechanism into the object is performed after the release operation, the lock mechanism is quickly and appropriately applied to the object. Can be locked.

  In addition, the memory mechanism is not limited to the one used to store the position before the change of the sheet position and temporarily retract the sheet position from the storage position, but to temporarily advance the sheet position from the storage position. It may be used in such a way that

1 seat (vehicle seat)
2 Seat back 3 Seat cushion 4 Headrest 5 Loop handle 6 Memory lever 7 Memory switch 10 Slide rail 11 Lower rail (fixed side rail)
11A Bottom portion 11B Lower fin portion 11C Lock groove 12 Upper rail (movable rail)
12A Top plate part 12Aa Through hole 12B Upper side fin part 12Ba Hooking hole 12Bb Hooking piece 12C Through groove 13 Lock spring (locking mechanism)
13A Front end portion 13B Rear end portion 13C Lock portion 14 Release member 15 Tension spring 16 Stopper bracket 16A Front surface 20 Memory mechanism 21 Memory body 21A Memory plate 21Aa Memory hole 21Ab Guide rail 21B Memory slider 21Ba receiving hole 21C Memory hook 21Ca Shaft pin 21Cb Pressure receiving Plate 22 Trigger 22A Stopper link 22Aa Shaft pin 22Ab Restriction hole 22Ac Front stopper arm 22B Rear stopper arm 22Ba Shaft pin 22Bb Stopper piece 22Bc Arm piece 22C Operation cam 22Ca Shaft pin 22Cb Restriction piece 22Cc Operation projection 30 Base bracket 30 Cancel mechanism 31 31A Locking piece 32 Rod 32A Operation shaft 33 Release operation member 33A Operation arm 33B Tip piece 34 Memory link 34A Deletion piece 34B Through hole 34Ba Retraction hole 35 Release link 35A Engagement / removal piece 35B Operation hole 35C Collar piece 35D Pressure receiving piece 36 Holding member 36A Axis pin 36B Operation piece 36C Pressure receiving arm 40 Operating body 40L Line segment 40A Electric motor 40B Output shaft 40S Limit Switch 41 Base plate 41A Stopper piece 41B Cable hooking part 41C1 Rear stopper 41C2 Front stopper 42 Driving node 42A Axis pin 42B Torsion spring 42C Swing link 42D Axis pin 42E Torsion spring 42F Stopper surface 43 Follower 43A Axis pin 43B Torsion spring 43C 44 Memory operation cable (operation member)
44A Tubular member 44B Linear member F Floor (vehicle body)
BP B pillar

Claims (6)

A vehicle seat having an operation body configured to release a lock mechanism that locks a seat position by inputting an operation load and to be held at the operation position,
The operating body is configured to release the lock mechanism by rotating the driving node rotated by the contact with the driving node, the driven node rotating by the contact with the driving node, and the driven node being rotated. An operation member,
The driving node and the driven node are arranged such that their rotation centers are spaced apart in the radial direction, and the driving node starts to hit the driven node by rotation on a line segment connecting the rotation centers and pushes the driven node. When the driven node exceeds the rotation range for releasing the locking mechanism, the contact with the driving node is removed by the progress of rotation, and the state is such that the operation can return to the initial position before the operation. Vehicle seats that are used. The vehicle seat according to claim 1,
A vehicle seat provided with a spring that applies an urging force to the driven node toward an initial position before operation. The vehicle seat according to claim 1 or 2,
The operating member includes a cable arranged so as to extend in a direction intersecting the line segment from a line segment connecting the rotation centers to the driven node, and the driven node is pushed around. The vehicle seat is configured to perform the releasing operation of the lock mechanism by being pulled by the cable. The vehicle seat according to any one of claims 1 to 3,
And a memory mechanism for storing the position before the change of the seat position and returning the position to the position before the change,
The operation member is configured to be held at the operation position by releasing the lock mechanism while the memory mechanism is in a state of storing the position.
The vehicle seat according to claim 1, wherein the memory mechanism is configured to operate to return the lock mechanism to a locked state when the seat position is moved to a predetermined position. The vehicle seat according to any one of claims 1 to 4,
The driving node is configured to have a one-way middle folding type hinge structure, and when the driven node is pushed and turned by input of the operation load, it is not bent, but the rotational positional relationship with the driven node is reversed. A vehicle seat that returns to the initial rotational position while escaping the movement that is pressed against the driven node from the opposite direction when the vehicle is returned from the center. The vehicle seat according to any one of claims 1 to 4,
A vehicle seat in which the driving node is configured to be rotationally driven in one direction by driving of an electric motor, and is configured to be stopped at an initial position by a limit switch every rotation.

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