JP2017210137A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat which can invalidate an operation of an operation body at a predetermined time in which the operation body releases seat position lock by inputting an operation load to be held at the operation position.SOLUTION: A vehicle seat includes an operation body 40 which performs release operation of a lock mechanism locking a seat position by input of operation load and holds the lock mechanism at the operation position. The vehicle seat includes control means C which can switch the operation body 40 between a valid state of the release operation of the lock mechanism and an invalid state thereof on the basis of a detection signal from outside.SELECTED DRAWING: Figure 50

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. That is, 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 returns the position to the storage position before the change. . In the initial state, the lock mechanism is held in a state where the seat position is locked, and the release position is 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 described above performs the unlocking operation of the locking mechanism described above by operating the memory lever described above, and leaves the memory member engaged with the slide position where the releasing operation is performed. The other members are separated from the vehicle seat so as to be moved in the sliding direction together with the vehicle seat. The memory mechanism returns the seat position to the storage position before the change after the change of the seat position, so that the other members that move together with the vehicle seat are left in the storage position. Then, the lock mechanism is moved so as to return to the locked state.

  In addition, the above-mentioned memory mechanism has other members as described above in the same manner as the operation when the seat 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. Is applied to a stopper bracket installed in the vicinity of the rearmost, and is moved 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, it is convenient if the operation of the memory lever can be invalidated as necessary when the situation in which the lock mechanism is held in the released state, such as when the vehicle is running, is not preferable. 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. It is intended to be able to invalidate the operation of the operation body that is determined at a predetermined time.

  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 for locking a seat position by inputting an operating load and to hold the locking mechanism at the operating position. On the basis of the detection signal, there is provided control means for controlling to switch the unlocking operation of the lock mechanism between a valid state and an invalid state.

  According to the first aspect, the operation of the operating body can be invalidated based on the detection signal from the outside at a predetermined time by the control means.

  The second invention is the following configuration in the first invention described above. The switching control by the control means performs switching to connect the power transmission path of the operation load to the lock mechanism of the operating body or to shut it off so that it can escape.

  According to the second aspect of the present invention, even when an operation load is input to the operating body when the release operation by the operating body is invalidated, the force can be released by blocking the power transmission path. It is possible to prevent an excessive load from being applied.

  The third invention is the following configuration in the second invention described above. The control means is configured to switch between connection and disconnection of the power transmission path by a linear solenoid actuator.

  According to the third aspect of the present invention, the switching control can be easily and instantaneously performed by using the linear solenoid actuator for switching the power transmission path.

  The fourth invention is the following structure in the third invention described above. The control means is configured to switch to a state where the power transmission path is connected by operation in the direction opposite to the gravity direction of the actuator, and to switch to a state where the power transmission path is blocked by operation in the direction of gravity.

  According to the fourth aspect of the present invention, when the control means or the actuator is out of order, the power transmission path of the operating body can be blocked by the gravitational action, thereby invalidating the operation of the operating body.

  According to a fifth invention, in any of the first to fourth inventions described above, the following configuration is adopted. The lock mechanism is configured to be held in an unlocked state by operation of the operating body while moving the seat position of the driver's seat from a predetermined driving posture position to a boarding / exiting support position that enlarges the entrance / exit opening to a predetermined state. ing.

  According to the fifth aspect of the present invention, it is possible to invalidate the operation of the operating tool at a predetermined time so that the driving posture of the driver is not greatly broken.

  A sixth invention is the following configuration in any of the first to fifth inventions described above. The control means enables the unlocking operation of the locking mechanism by the operating body when the vehicle is stopped based on the detection signal indicating the stopping state of the vehicle, and invalidates the unlocking operation of the locking mechanism by the operating body when the vehicle is not stopped. It is set as the structure switched to do.

  According to the sixth aspect of the present invention, it is possible to prevent the operation body from being operated unless the vehicle is stopped.

1 is a side view illustrating a schematic configuration of a vehicle slide rail device according to a first embodiment. It is a side view showing the procedure which returns a seat position from the boarding / alighting support position to the memory position before change. It is a side view showing the state where a loop handle was operated after operation of a memory lever, and a 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 the whole structure of the slide rail apparatus for vehicles. It is the perspective view which disassembled and represented the slide rail inside a vehicle width direction. It is a disassembled perspective view of the mechanism components attached to the upper side of the slide rail. It is the disassembled perspective view which looked at the mechanism component from the opposite side. It is the perspective view which further disassembled and represented the mechanism component. It is the side view which visualized and represented the principal part mechanical components of the back | inner side of the slide rail apparatus for vehicles in an initial state. It is the side view which visualized and represented the principal part mechanism components of the near side. FIG. 11 is a side view showing a state where the loop handle is operated from the initial state of FIG. 10. FIG. 12 is a side view showing the same state of a main part mechanical component on the near side corresponding to FIG. 11. FIG. 14 is a side view illustrating a state where the seat position is retracted from the state illustrated in FIG. 13. FIG. 13 is a side view showing the same state of a main part mechanical component on the back side corresponding to FIG. 12. FIG. 16 is a side view showing a state in which the holding release operation link is pushed to avoid contact with the stopper link by further backward movement of the seat position from the state of FIG. 15. FIG. 17 is a side view showing a state in which the holding release operation link has passed through the stopper link and returned to the posture from the state of FIG. 16. FIG. 17 is a side view showing a state in which the stopper link is pushed to avoid abutment with the holding release operation link by advancement of the sheet position from the state of FIG. 16. FIG. 12 is a side view showing a state in which a pulling operation force is applied to the L-shaped link by operating the memory lever from the initial state of FIG. 11. FIG. 20 is a side view showing a state where the transmission link is pushed around by the rotation of the L-shaped link from the state of FIG. 19. It is the side view showing the principal part mechanical components of the back side corresponding to FIG. 10 in the same state. FIG. 22 is a side view showing a state in which the holding operation pin of the release holding member has entered the drawing hole of the memory link from the state of FIG. 21. FIG. 23 is a side view showing a state in which the rotation operation of the memory link further proceeds from the state of FIG. FIG. 21 is a side view showing the main part mechanical component on the near side corresponding to FIG. 20 in the same state. FIG. 25 is a side view illustrating a state where the rotation of the L-shaped link further proceeds from the state of FIG. 24 and the rotational positional relationship with the transmission link is reversed. FIG. 26 is a side view showing a state in which the operation cam of the transmission link is pushed to avoid abutment with the L-shaped link by returning the rotation of the L-shaped link from the state of FIG. 25. FIG. 27 is a side view showing a state in which the rotation of the L-shaped link is completely returned from the state of FIG. 26. FIG. 24 is a side view showing the same state of a main part mechanical component on the back side corresponding to FIG. 23. FIG. 28 is a side view showing a state in which the seat position is retracted from the state of FIG. 27 (memory state). FIG. 29 is a side view showing the same state of a main part mechanical component on the back side corresponding to FIG. 28. FIG. 31 is a side view showing a state where the operation cam of the trigger has passed through the release holding member from the state of FIG. 30. FIG. 32 is a side view showing a state in which the holding release operation link is pressed against the stopper link by further backward movement of the seat position from the state of FIG. 31. FIG. 33 is a side view showing a state where the holding release operation link is pushed around from the state of FIG. 32 and the operation cam is pressed against the release holding member. FIG. 34 is a side view showing a state where the release holding member is pushed around from the state of FIG. 33 and the holding operation pin is removed from the drawing-in hole of the memory link. FIG. 35 is a side view showing a state in which the memory link is returned from the state of FIG. 34 to the initial position. FIG. 30 is a side view showing the principal state mechanical component on the near side corresponding to FIG. 29 in the same state. FIG. 29 is a side view showing a state in which the holding operation pin is removed from the drawing-in hole of the memory link by operating the loop handle from the state of FIG. 28 (memory state). FIG. 38 is a side view showing a state in which the release link starts to be pushed around as the operation of the loop handle progresses from the state of FIG. 37. FIG. 28 is a side view showing the state of the main part mechanical component on the near side corresponding to FIG. 27 in the same state. FIG. 39 is a side view showing a state in which the operation of the loop handle has further progressed from the state of FIG. 38. FIG. 40 is a side view showing the state of a principal part mechanical component on the near side corresponding to FIG. 39 in the same state. FIG. 31 is a side view showing a state where a loop handle is operated from the state (memory state) of FIG. 30. FIG. 43 is a side view showing a state where the seat position is advanced from the state of FIG. 42 and the release link is put on the leaf spring of the memory slider. FIG. 44 is a side view showing a state in which the advance of the seat position is further advanced from the state of FIG. FIG. 45 is a side view showing a state where the release link pushes and deflects the leaf spring of the memory slider and engages the leaf spring by further advancement of the seat position from the state of FIG. FIG. 10 is a side view showing a state in which the return movement of the sheet position to the storage position is abrupt and the holding release operation link is pushed beyond the original locking position with respect to the memory slider. FIG. 37 is a side view showing the principal state mechanical component on the near side corresponding to FIG. 36 in the same state. It is a side view showing the state where operation of a memory lever is made invalid. It is a side view showing the state where the memory lever was operated from the same state. It is a side view showing the state where operation of a memory lever is made effective. It is a side view showing the state where the memory lever was operated from the same state.

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

<< About schematic structure of sheet 1 >>
First, the structure of the seat 1 (vehicle seat) of Example 1 will be described with reference to FIGS. As shown in FIGS. 1 to 4, 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 floor F of the vehicle via a pair of left and right slide rails 10 constituting a slide rail device M described later. The seat back 2 is connected to the rear end 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. 4, 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, It is possible to switch to a state where the seat 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 all 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 operation mechanism 30 constituting the slide rail device M described later. It has become. 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 locked near the rear most indicated by the phantom line in FIG. 1 (solid line in FIG. 2). If the position is not moved to either the position before the change indicated by the solid line in FIG. 1 (the phantom line in FIG. 2), the unlocked state of those slides is maintained. Yes.

  That is, when the slide state of each slide rail 10 is released by the operation of the memory lever 6 described above, the memory mechanism 20 constituting the slide rail device M, which will be described later, works by the memory mechanism 20 before the seat position is changed. With the position stored, whether the seat position is the locking position near the rearmost indicated by the phantom line in FIG. 1 (solid line in FIG. 2) or the position before the change indicated by the solid line in FIG. 1 (virtual line in FIG. 2) Basically, it is possible to switch to a state (memory state) in which the slide is not locked only at either position. By having such a configuration, each slide rail 10 can be operated by operating the memory lever 6 from a state where the seat position is used at the driving position closer to the front side (solid line position in FIG. 1). The seat position can be retracted at a stretch to a boarding / alighting support position (imaginary line position in FIG. 1) near the rearmost where the boarding / alighting operation is easy, and can be used once locked at that position.

  Further, each slide rail 10 operates the memory lever 6 again as shown in FIG. 2 from the state where the slide is once locked at the boarding / alighting support position (the virtual line position in FIG. 1) near the rearmost. As a result, the seat position is basically locked only at either the above-mentioned boarding / alighting support position near the rearmost (the solid line position in FIG. 2) or the position before the change (the phantom line position in FIG. 2). It is possible to switch to a state (memory state). Since each slide rail 10 has such a configuration, the memory lever 6 is re-opened from the state where the seat position is once locked at the above-described boarding / alighting support position (solid line position in FIG. 2) near the rearmost. By performing this operation, the seat position can be returned to the driving position before the previous change (the phantom line position in FIG. 2) all at once and returned to the locked state at that position. .

  To summarize the above flow, the seat position is temporarily moved back to the boarding / alighting support position by the operation of the memory lever 6 (moving from the solid line position to the virtual line position in FIG. 1), and before the change after the reverse movement. The return movement to the driving position (movement from the solid line position in FIG. 2 to the virtual line position) is performed by the following procedure. First, as shown by the solid line state in FIG. 1, the memory lever 6 is pulled up in a state where the seat 1 is at an arbitrary use position such as a driving position (circled number 1 in FIG. 1). Next, the seat position is moved backward (circled number 2 in FIG. 1) and moved to the boarding / alighting support position (the imaginary line position in FIG. 1) near the rearmost where the movement is locked. As a result, the seat position is automatically locked at the boarding / alighting support position (the phantom line position in FIG. 1) near the rearmost as shown by the circled numeral 3 in FIG. Becomes a state in which the boarding / alighting operation can be easily performed (boarding / alighting support state). In addition, the boarding / alighting support position (the imaginary line position in FIG. 1) near the rearmost where the seat position is locked 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. ing.

  Next, as shown by the solid line state in FIG. 2, after the driver gets on the seat 1 from the state where the seat position is locked at the boarding / alighting support position near the rearmost by the above operation, the memory lever 6 is moved again. The lifting operation is performed (circled number 4 in FIG. 2). Then, the seat position is moved forward (circled numeral 5 in FIG. 2), and moved to a use position (virtual line position in FIG. 2) such as a driving position before change in which the movement is locked. As a result, the seat position is automatically locked at the use position before the change (the imaginary line position in FIG. 2) as indicated by the circled numeral 6 in FIG. Without adjustment, the seat position can be easily returned to the storage position before the change.

  Further, as shown in FIG. 3, 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 operation of the operation mechanism 30 described later, so that the seat position can be returned to the locked state at that position. It has become. Since each slide rail 10 has such a configuration, the seat position can be switched to a state (memory state) that can be locked only at the two front and rear positions described above with reference to FIGS. Even if necessary, by operating the loop handle 5, the memory state can be immediately canceled at that position, and the seat position can be locked at that position (arbitrary position).

  1 to 3, the state in which the above-described seat 1 is in the memory state by the operation of the memory lever 6 is represented by a thin coating state on the seat 1, and the seat 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.

  Further, 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. 3, the cancel operation described above is performed by operating the memory lever 6 again from there. It returns to the memory state before being read. 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. The state can be returned to the state before being canceled, and the seat position can be switched to the use position (solid line position) such as the driving position before the change at a stretch.

<< Specific Configuration of Slide Rail 10 >>
Hereinafter, specific configurations of the slide rails 10, the memory mechanism 20, and the operation mechanism 30 constituting the slide rail device M 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. Since the basic structure of each slide rail 10 has a substantially common configuration on the left and right, these detailed configurations are represented by the configuration of the slide rail 10 on the inner side in the vehicle width direction shown in FIG. I will explain. Here, the lock spring 13 corresponds to the “lock mechanism” of the present invention.

  As shown in FIG. 6, 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. Each of these lock grooves 11C is formed in a shape of opening downward along the respective edge portions that are folded down and hung inside the respective lower fin portions 11B, and a plurality of these are arranged at equal intervals in the front-rear direction. It has been formed. The lock grooves 11C formed in the lower fin portions 11B are in a state of being 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 is opposite to the above-described lower rail 11 in that the respective edge portions of the left and right upper-side fin portions 12B bent back in the U-shape are 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 suppressed from being loose in the height direction and the seat 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 back in the sheet width direction and folded forward. Then, the lock spring 13 protrudes in a wavy shape toward the both outer sides in the sheet width direction at intermediate portions of the pair of left and right lines extending from the rear end portion 13B to the front side. It is set as the structure in which the lock | rock part 13C bent by 1 was formed. Further, the front end portions 13A of the respective line portions of the lock spring 13 are each bent into a stepped shape so as to extend to the upper front side.

  In the lock spring 13 described above, the bent portions of the front end portion 13A of each line portion described above are cut and raised inward from the side wall portion of the front region of each upper fin portion 12B of the upper rail 12 described above. It passes from the rear side and is set on each formed hook piece 12Ba. With the above-described configuration, the front end portion 13A of each line portion of the lock spring 13 is attached in such a manner that it can slide in the front-rear direction and tilt in the height direction with respect to each hook piece 12Ba. In addition, the lock spring 13 is formed by turning up the folded portions on both corners of the rear end portion 13B described above from the side wall portions of the rear region of the upper fin portions 12B of the upper rail 12 described above. Further, each hook piece 12Bb is hooked from above and set. With the above configuration, the rear end portion 13B of the lock spring 13 is attached to the above-described hooking pieces 12Bb so as to be pin-coupled so as to be axially rotatable in the height direction.

  Further, the lock spring 13 has the left and right lock portions 13C, which pass through in the seat width direction formed in the side wall portion of the center region in the front-rear direction of the left and right upper fin portions 12B of the upper rail 12 described above. It is assembled in a state where it is inserted from the inside. Each of the through-grooves 12C described above has a shape having a comb-like slit through which each lock portion 13C of the lock spring 13 inserted through each of the through-grooves 12C can be individually elongated in the upward direction. Yes. The lock spring 13 has a double-end support structure in which the front end portion 13A and the rear end portion 13B are pin-connected in a shape that can rotate in the height direction with respect to the upper rail 12 as described above. In the free state, the above-described lock portions 13C are held in a state of being inserted from the lower side into the slits extending in a comb shape in the through grooves 12C of the upper rail 12 by the restoring action by the spring biasing force. It is like that.

  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 formed in each slit of each through groove 12C and each lower fin 11B formed in each upper fin 12B. Further, the lock grooves 11C are aligned with each other in the vehicle width direction so that they pass through the slits in the through grooves 12C and the lock grooves 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 curved in such a manner that the lock spring 13 is pushed and bent downward in each of FIGS. 11, 19, 36, 39, and 47. Instead, it is represented by a shape state restored to a shape extending substantially straight in the front-rear direction.

  As shown in FIGS. 13 and 20, the above-described lock spring 13 is lowered by a memory link 34 constituting an operation mechanism 30 described later by operating the loop handle 5 (see FIG. 12) or the memory lever 6 (FIG. 20). When pushed to the side, the lock portion 13C is pushed and bent downward by an internal operation arm 39 to be pushed later by the memory link 34, and from the lock groove 11C of the lower rail 11 (see FIG. 6). It is designed to be removed. 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 operation state in which the lock spring 13 is pushed down by the memory link 34 shown in FIGS. 13 and 20 is released, so that the lock spring 13 is again moved to the lower rail by the spring biasing force as shown in FIGS. 11 is returned to the state (locked state) that has entered the lock groove 11C (see FIG. 6).

  At this time, the slide position to which the upper rail 12 is moved is in a state where the lock groove 11C of the lower rail 11 is not located at the position where the lock portion 13C of the lock spring 13 tries to return upward by the spring biasing force, that is, the lock groove 11C. When the shelf surface in between is in a state of being directly above, the lock portion 13C is returned only to the position where it comes into contact with 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 and rear side, the lock portion 13C is aligned with the lock groove 11C of the lower rail 11 and enters the lock groove 11C to be locked.

  The above is the specific configuration of each slide rail 10 shown in FIG. In addition, a memory mechanism 20 and an operation mechanism 30 which will be described later are further assembled to the slide rails 10 arranged on the inner side (left side) in the vehicle width direction. With the above configuration, the slide rail 10 on the inner side in the vehicle width direction is unlocked by the lock spring 13 via the operation 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 arranged on the outer side (right 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 an operation mechanism 30 described later. With the above configuration, the release member 14 performs the unlock operation of the lock spring 13 on the same side in accordance with the operation in which the memory link 34 is pushed downward by the operation of the loop handle 5 or the operation of the memory lever 6. It is configured as follows. With the above configuration, the operations of locking and releasing the slide rails 10 are performed simultaneously in synchronization with 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 outer side (right side) in the vehicle width direction described above. 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 with respect 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 inner side (left side) of the slide rail 10 in the vehicle width direction, the seat position is set in the memory state by the operation of the memory lever 6 described above, and the boarding / alighting support position near the rearmost (in FIG. A stopper bracket 16 that restricts movement by contact by retreating to a line position) is attached. As shown in FIGS. 5 to 6, the stopper bracket 16 is configured such that a stopper link 16 </ b> A is rotatably attached to a plate material such as steel bent in an L shape. The stopper bracket 16 described above is externally attached to the lower rail 11 so that the bottom plate portion and the upright plate portion are along the bottom surface portion 11A of the lower rail 11 and the outer surface portion of the inner (right side) lower fin portion 11B. It is assembled as. 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.

  Further, the stopper link 16A is assembled in a state where the stopper link 16A is rotatably connected to the front upper end portion of the stopper bracket 16 by a shaft pin 16A1 having an axis line in the vehicle width direction. As shown in FIG. 30, the stopper link 16A is normally shown with the shaft pin 16A1 as the center with respect to the stopper bracket 16 due to the biasing force of a spring (not shown) hooked between the stopper bracket 16 and the stopper bracket 16 described above. The state in which the counterclockwise rotation force is applied is a state in which the force is pressed against and locked to the locking piece 16B formed on the stopper bracket 16. With the above configuration, as shown in FIGS. 32 to 35, the stopper link 16 </ b> A switches the slide rail 10 to the memory state by operating the memory lever 6 and moves the seat position backward to the boarding / alighting support position near the rearmost. A holding release operation link 22A of a trigger 22, which will be described later, is pressed from the front side, and the holding release operation link 22A is pushed from the rear side to function so as to lock the slide rail 10 at that position.

  As shown in FIGS. 15 to 17, the stopper link 16A is pushed by the holding release operation link 22A from the front side when the slide rail 10 is moved backward toward the rear most position by operating the loop handle 5 described above. Since the holding release operation link 22A is pushed and turned around from the rear side, the holding release operation link 22A can penetrate the stopper link 16A rearward without locking the slide rail 10. The front-rear positional relationship with the holding release operation link 22A is switched by the movement of (see FIG. 17). That is, when the slide link 10 is moved back toward the rear most position by operating the loop handle 5, the stopper link 16 </ b> A does not function to restrict the back movement of the slide rail 10, and the slide rail 10 slides to the rear most position. It has come to allow.

  Then, as shown in FIG. 18, the stopper link 16A moves forward from the state in which the front-rear positional relationship with the holding release operation link 22A is changed, and the holding release operation link 22A is pushed from the rear side. When applied, it is pushed around from the rear side by the holding release operation link 22A so as to rotate clockwise around the axis pin 16A1 so as not to obstruct the return movement of the holding release operation link 22A to the front side. To escape. The stopper link 16A is returned to the initial position in which the holding release operation link 22A is pressed against the locking piece 16B of the stopper bracket 16 again by the spring biasing force when the stopper release link 22A is pulled out of the stopper link 16A. It is like that.

<< Specific Configuration of Memory Mechanism 20 >>
Next, a specific configuration of the memory mechanism 20 will be described with reference to FIGS. As shown in FIGS. 5 to 6, the memory mechanism 20 is roughly configured by a memory body 21 assembled to the lower rail 11 and a trigger 22 assembled to the upper rail 12. As shown in FIGS. 30 to 31, the former memory body 21 remains at a fixed position on the lower rail 11 and changes the position before the seat position when the seat position is changed by the operation of the memory lever 6 described above. It functions as a memorizing member.

  As shown in FIGS. 32 to 35, the latter trigger 22 is configured so that the seat position is retracted to the above-described boarding / alighting support position (the phantom line position in FIG. 1) by the operation of the memory lever 6. It is pressed against the 16 stopper links 16A from the front side and rotates to function to lock the seat position at that position. Further, the trigger 22 is operated when the seat position moves forward from the above-described boarding / alighting support position (the imaginary line position in FIG. 1) to the position before the change such as the previously stored driving position by the operation of the memory lever 6 described above. 30 to FIG. 31 is pressed against the memory body 21 from the rear side to rotate and functions to lock the seat position at that position in the same manner as shown in FIGS. 32 to 35 described above. It is supposed to be.

  Further, as shown in FIGS. 15 to 17, the trigger 22 moves backward toward the rear most position by the operation of the loop handle 5 described above so that the seat position exceeds the aforementioned boarding / alighting support position (the phantom line position in FIG. 1). When trying to do so, even if it is pressed against the stopper link 16A of the stopper bracket 16 and rotated from the front side, it does not function to lock the seat position at that position, and the stopper link 16A slips through by slipping. And function so that it can be passed through to the rear.

<< Specific Configuration of Memory Body 21 >>
Subsequently, a specific configuration of the memory body 21 described above will be described with reference to FIGS. 6 and 10. The memory body 21 includes a memory plate 21A that is long in the front-rear direction, and a memory slider 21B that is assembled to be slidable in the front-rear direction with respect to the memory plate 21A.

  The former memory plate 21A has a shape in which a single sheet of steel or the like that is long in the front-rear direction is bent into a substantially U-shape in the short-side direction. The above-described memory plate 21A is provided on the bottom surface portion 11A of the above-described lower rail 11 in a state where a plurality of front and rear portions are screw-fastened and integrally fixed. The above-described memory plate 21A has a shape in which the respective edge portions bent in a substantially U shape in cross section are further bent in a hook shape on the inward sides. With the above configuration, the memory plate 21A can be slid in the front-rear direction so that the memory slider 21B is not peeled off in the height direction by inserting the memory slider 21B into the inner side from either the front-rear opening end on both left and right sides. The guide rail 21 </ b> Aa that can be supported is formed. Between the top plate portions protruding in a bowl shape from the upper edge of each guide rail 21Aa of the memory plate 21A described above, the top plate is formed in a shape extending in a line shape in the front-rear direction. Rectangular memory grooves 21Ab penetrating in the height direction are formed at equal intervals in the front-rear direction at a plurality of positions in the front-rear direction across the portion.

  The memory slider 21B is formed of a substantially flat member. The memory slider 21B is provided in the above-described memory plate 21A so as to be inserted from one of the front and rear opening ends and supported so as to be slidable in the front-rear direction. At the front end portion of the memory slider 21B described above, a hook-shaped hook 21Ba is formed to project the shape toward the front lower side at a position where the memory plate 21A extends upward from the gap between the top plate portions of the memory plate 21A. It is provided as a state in which it is pin-coupled so as to be rotatable by a shaft pin 21Ba1 whose axis is directed in the vehicle width direction.

  The hook 21Ba is normally applied with a force in the direction of rotating forward about the shaft pin 21Ba1 by the urging force of the flat plate spring 21Bb hooked between the hook 21Ba and the memory slider 21B. It is in a state. With the above configuration, the hook 21Ba is always aligned with the memory groove 21Ab of the memory plate 21A by receiving a force so that the front lower end of the hook 21Ba is pressed against the top plate portion of the memory plate 21A from above. As a result, the memory groove 21Ab is held in a state in which it has entered. As the hook 21Ba enters the memory groove 21Ab, the slide of the memory slider 21B in the front-rear direction with respect to the memory plate 21A is held in a locked state.

  The above-described leaf spring 21Bb is obliquely bridged in a rearward-lowering shape between the rear end portion that extends in a form that jumps up to the rear upper side of the hook 21Ba and the rear end portion of the memory slider 21B. The hook 21Ba is rotated forward by a spring biasing force. An engagement hole 21Bb1 penetrating in the height direction is formed in an intermediate portion in the front-rear direction of the leaf spring 21Bb. As will be described later with reference to FIG. 12, the engagement hole 21 </ b> Bb <b> 1 is formed at the lower end of the release link 35 when the release link 35 constituting the operation mechanism 30 is pushed down by operating the loop handle 5. The engagement / disengagement 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.

  Further, the leaf spring 21Bb is pushed and bent downward by the engagement / disengagement piece 35A as the engagement / disengagement piece 35A of the release link 35 enters into the engagement hole 21Bb1. It is designed to be pulled in. By the above operation, the hook 21Ba is pulled out from the state where it enters the memory groove 21Ab of the memory plate 21A, and the locked state of the slide of the memory slider 21B with respect to the memory plate 21A is released. The hook 21Ba is returned to the state in which the hook 21Ba has entered the corresponding memory groove 21Ab of the memory plate 21A as the leaf spring 21Bb is restored by releasing the operation state where the release link 35 is pushed down. It has become.

  The above-described position where the slide of the memory slider 21B with respect to the memory plate 21A is locked, that is, the position where the above-described hook 21Ba can enter any of the memory grooves 21Ab is the slide of the upper rail 12 with respect to the lower rail 11 described above. The position is set to a position corresponding to a position where the lock spring 13 can enter one of the lock grooves 11 </ b> C of the lower rail 11. That is, the lock pitch in the sliding direction of the memory slider 21B with respect to the memory plate 21A is set to the same pitch as the locking pitch in the sliding direction of the upper rail 12 with respect to the lower rail 11.

  In addition, the engagement holes 21Bb1 formed in the plate spring 21Bb described above are formed side by side at two positions before and after the plate spring 21Bb. Of these, the engagement hole 21Bb1 formed on the rear side is normally released when the release link 35 is pushed down from the position immediately above the loop handle 5 as will be described later with reference to FIG. The link 35 functions as a hole for receiving the engagement / disengagement piece 35A. As shown in FIGS. 42 to 45, the rear engagement hole 21Bb1 is pushed down by the operation of the loop handle 5 at a position where the release link 35 is separated from the position immediately above it to the rear side. As a hole for receiving the engagement / disengagement piece 35A of the release link 35 that slides on the leaf spring 21Bb from the rear side when the operation is carried out from the rear side on the leaf spring 21Bb in the operated state. It is supposed to function.

  On the other hand, as shown in FIG. 31, the front engagement hole 21Bb1 is formed at the front side at a high speed toward the previous storage position from the moving position where the sheet position is retracted from the previous storage position by the operation of the memory lever 6 described above. When an abnormal operation such as returning to the position is performed, as shown in FIG. 46, even if a trigger 22 described later is pressed against the memory slider 21B from the rear side to lock the sheet position, it will be described later with reference to FIG. Thus, even when the lock spring 13 is locked in a position where the return speed of the lock spring 13 is not in time and the lock spring 13 jumps forward by one pitch, the engagement / disengagement piece 35A of the release link 35 is pushed down by operating the loop handle 5 at that position. It is formed at a position that can accept the operation. With the above configuration, even after the above-described tooth skipping phenomenon has occurred, the operation of bringing the release link 35 into the state of being integrally engaged with the memory slider 21B in the front-rear direction by the operation of the loop handle 5 can be performed as usual. It is like that.

<< Specific Configuration of Trigger 22 >>
Next, a specific configuration of the trigger 22 described above will be described with reference to FIGS. The trigger 22 includes a holding release operation link 22A assembled to a base bracket 31 on the upper rail 12, which will be described later, and a power transmission plate that is also assembled on the base bracket 31 and rotates by receiving power transmission from the holding release operation link 22A. 22B and an operation cam 22C assembled to the power transmission plate 22B. The holding release operation link 22A is formed of a single sheet of steel or the like that is long in the height direction with the surface facing in the vehicle width direction. The holding release operation link 22A has an intermediate portion near its lower end in the height direction so that it can be rotated to the inner surface side of the rear end portion of the base bracket 31 to be described later by a shaft pin 22Aa having an axis line in the vehicle width direction. It is provided as a pin connected state. The above-described holding release operation link 22A is always on the lower side of the base bracket 31 with the shaft pin 22Aa as the center by the biasing force of a spring (not shown) hooked between the base bracket 31 and the base bracket 31 described above. A force is applied in the direction of rotating the extending leg piece 22Ab forward.

  With the above configuration, as shown in FIG. 10, the holding release operation link 22A pushes the leg piece 22Ab to the memory slider 21B from the rear side when the memory slider 21B is adjacent to the front position in the free state. It is designed to be held in the standing posture. As shown in FIGS. 30 to 31, the holding release operation link 22 </ b> A has a leg piece 22 </ b> Ab on the rear side from the memory slider 21 </ b> B when the seat position moves backward leaving the memory slider 21 </ b> B by operating the memory lever 6. The leg pieces 22Ab are lifted slightly forward and held in an oblique posture by the above-described spring biasing force. The holding release operation link 22A pushes the power transmission plate 22B by the rotation, and the power transmission plate 22B is pressed from the front side to a locking piece 31C of the base bracket 31 described later, thereby It is held in an inclined state (see FIG. 31).

  Further, as shown in FIGS. 7 and 9 to 10, a slide pin 22Ac whose axis is directed in the vehicle width direction is provided at the upper end portion of the holding release operation link 22 </ b> A so as to protrude. The slide pin 22Ac is inserted into a long hole 22Bb formed in a power transmission plate 22B, which will be described later, in the vehicle width direction. As shown in FIGS. 15 to 17 and FIGS. With the rotation of 22A, the inside of the elongated hole 22Bb can be slid in the front-rear direction. In addition, a stopper pin 22Ad having an axis line in the vehicle width direction is provided in a protruding state at an intermediate portion of the holding release operation link 22A. As shown in FIGS. 15 to 17 and 30 to 35, the stopper pin 22Ad is pressed from the front side to the stopper link 16A provided on the stopper bracket 16 by retracting the seat position. As the movement progresses, the holding release operation link 22A functions so as to push down forward about the shaft pin 22Aa.

  As shown in FIGS. 9 to 10, the power transmission plate 22 </ b> B is formed of a single sheet of steel or the like whose surface is directed in the vehicle width direction. The power transmission plate 22B is provided in a state in which the upper corner of the power transmission plate 22B is rotatably connected to the inner surface of the rear end portion of the base bracket 31 (to be described later) by a shaft pin 22Ba having an axis line in the vehicle width direction. It has been. The power transmission plate 22B is formed with a long hole 22Bb having a shape extending in the rotational direction and the radial direction around the shaft pin 22Ba. The long hole 22Bb is inserted with the slide pin 22Ac of the holding release operation link 22A described above, and the slide pin 22Ac slides in the long hole 22Bb by the rotation of the holding release operation link 22A. With the above-described configuration, the power transmission plate 22B is configured such that its rotation posture is controlled by the rotation posture of the holding release operation link 22A. That is, the power transmission plate 22B is stopped when the holding / release operation link 22A is stopped, and is rotated by the holding / release operation link 22A. The rotation posture can be changed.

  Specifically, the long hole 22Bb described above has a power transmission region 22Bb1 that extends straight in the radial direction around the shaft pin 22Ba of the power transmission plate 22B, and a rotational direction from the radially outer end of the power transmission region 22Bb1. The relief region 22Bb2 is curved and extends in an arc shape. Since the former power transmission region 22Bb1 has a shape that extends straight in the radial direction around the shaft pin 22Ba, as shown in FIGS. 30 to 35, the inside of the power transmission region 22Bb1 is rotated by the rotation of the holding release operation link 22A. By passing the slide pin 22Ac, the power transmission plate 22B functions so as to efficiently receive the power transmission in the rotation direction from the slide pin 22Ac and efficiently rotate the power transmission plate 22B. Further, as shown in FIG. 16, the latter relief region 22Bb2 is curved into an arc shape centering on the shaft pin 22Aa of the holding release operation link 22A when the slide pin 22Ac is passed therethrough. It is made into a shape. With the above configuration, the escape region 22Bb2 is in a state in which the slide pin 22Ac is passed through the relief region 22Bb2. Even if the slide pin 22Ac slides in the relief region 22Bb2 due to the rotation of the holding release operation link 22A, power transmission is performed. It functions so as to release the rotation of the holding release operation link 22A without transmitting power to the plate 22B.

  As shown in FIGS. 9 to 10, the operation cam 22 </ b> C is formed of a substantially flat plate member that faces in the vehicle width direction. The operation cam 22C is provided in a state in which the operation cam 22C is rotatably connected to the front upper corner portion of the power transmission plate 22B by a shaft pin 22Ca having an axis line in the vehicle width direction. The operation cam 22C is normally applied with a force that rotates in the counterclockwise direction shown in the figure against the power transmission plate 22B by the urging force of a spring (not shown) hooked between the operation cam 22B and the power transmission plate 22B. It is assumed that With the above configuration, in the free state, the operation cam 22C has the same direction at a position where the locking piece 22Cb extending from the rear portion is applied to the locking piece 22Bc formed on the power transmission plate 22B from below. In this state, the rotational movement is held as a restricted state.

  As shown in FIG. 10, the operation cam 22C has an operation projection 22Cc that extends toward the front side when the memory slider 21B is adjacent to the front position of the above-described holding release operation link 22A in its free state. However, it is held in a state where it is positioned above the kicked piece 36D of the release holding member 36 constituting the operation mechanism 30 described later. However, as shown in FIGS. 30 to 31, the operation cam 22 </ b> C is moved in such a manner that the holding release operation link 22 </ b> A is moved rearwardly from the memory slider 21 </ b> B and tilted rearward by urging. The operation protrusion 22Cc on the tip side is moved so as to reverse the positional relationship in such a manner that the operation protrusion 22Cc is kicked by the release holding member 36 and goes under the piece 36D.

  That is, as shown in FIG. 30, the holding release operation link 22A is moved rearwardly away from the memory slider 21B and tilted rearward by urging, so that the slide pin 22Ac of the holding release operation link 22A is rotated. As a result, the power transmission plate 22B is rotated in the counterclockwise direction around the shaft pin 22Ba. As a result, the operation protrusion 22Cc on the distal end side of the operation cam 22C connected to the power transmission plate 22B is pressed against the kick piece 36D of the release holding member 36 from above, and the operation protrusion 22Cc resists the spring biasing force. Thus, the piece 36D is kicked while rotating clockwise about the axis pin 22Ca in the figure, and passes through the piece 36D downward. Then, as shown in FIG. 31, the operation protrusion 22Cc is moved downwardly into the locking piece 22Bc of the power transmission plate 22B by the spring biasing force by passing through the kicked piece 36D of the release holding member 36 described above. It is returned to the position where it is applied and locked from below.

  As described above, the operation cam 22C has the operation protrusion 22Cc on the tip side thereof kicked by the release holding member 36 and has entered the state where the operation release 22C is under the piece 36D. As shown in FIG. 35, it is pressed against the stopper link 16A described above from the front side or pressed against the memory slider 21B described above with reference to FIG. 30 from the rear side in the counterclockwise direction shown around the shaft pin 16A1. By being pushed around, it is rotated integrally with the power transmission plate 22B so that the shaft pin 22Ba is lifted to the front upper side, and the operation projection 22Cc on the tip side thereof kicks the release holding member 36. And pressed against the piece 36D from below (see FIG. 33). Then, as shown in FIGS. 34 to 35, the operation cam 22C pushes the release piece 36D of the release holding member 36 from the lower side by the operation protrusion 22Cc on the distal end side to move the release holding member 36 from the lower side. The operation mechanism 30 can be moved so as to lock the seat position at the position as described later by rotating the shaft pin 36A in the counterclockwise direction as shown in the figure (see FIG. 36).

  As shown in FIG. 6, the above-described trigger 22 has a rectangular structure in which a suspension structure such as the leg piece 22 </ b> Ab of the holding release operation link 22 </ b> A described above is formed in the top plate portion 12 </ b> A of the upper rail 12 in the longitudinal direction. It is set in a state in which it is inserted into the through hole 12Ab having a shape from the upper side and enters the space in the rail between the upper rail 12 and the lower rail 11.

<< Specific Configuration of Operation Mechanism 30 >>
Next, a specific configuration of the operation mechanism 30 will be described with reference to FIGS. As shown in FIGS. 7 to 9, the operating mechanism 30 is integrally attached to a base bracket 31 serving as a base, a rod 32 that is pin-coupled to the base bracket 31 so as to be rotatable, and the loop handle 5. A release arm 33 that is rotated about the rod 32 as an axis, a memory link 34 that is connected to the base bracket 31 so as to be rotatable about the same axis as the rod 32, and a base bracket that is aligned with the memory link 34 side by side. A release link 35 that is pin-coupled to the rod 32 so as to be rotatable about the same axis as the rod 32, a release holding member 36 that is attached to the release link 35 and that can be attached to and detached from the memory link 34, and a base bracket 31. An L-shaped link 37 that is rotatably coupled to the memory lever 6 and is rotated by operating the memory lever 6, and a base bracket 6 is attached to the top plate portion 12A of the upper rail 12 from below as shown in FIG. And an internal operation arm 39 that is pin-coupled so as to be rotatable in the space in the rail of the upper rail 12.

  As shown in FIGS. 7 to 8, the base bracket 31 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. As shown in FIG. 8, the base bracket 31 has a lower edge portion bent from the front portion to the middle portion thereof inward (right side) in the seat width direction, and this portion is the upper rail shown in FIG. 12 is provided as a state of being fixed on the top plate portion 12A and fixed integrally by fastening with a fastening member such as a bolt.

  As shown in FIG. 8, a locking piece 31 </ b> A that is bent inward in the seat width direction is also formed on the upper edge portion of the front region of the base bracket 31. As shown in FIG. 10, the locking piece 31 </ b> A is located immediately above a flange piece 35 </ b> C formed on the upper edge of the release link 35 described later, and the release link 35 is centered on the rod 32 by a spring biasing force. It functions as a restricting portion for restricting movement moved in the counterclockwise direction in the figure by contact from above. Further, as shown in FIG. 11, the locking piece 31A restricts the movement of a later-described L-shaped link 37 about the shaft pin 37A by a spring biasing force in the illustrated counterclockwise direction by contact from the front side. It is designed to function as a regulation section.

  As shown in FIG. 8, a locking piece 31 </ b> C that is bent inward in the seat width direction is also formed at the lower edge portion of the rear region of the base bracket 31. As shown in FIG. 31, the locking piece 31C is moved by rotating so that the above-described holding release operation link 22A is separated from the memory slider 21B and tilted rearward by urging. Is functioning as a restricting portion that restricts the movement of the shaft pin 22Ba that is moved in the counterclockwise direction in the figure by contact from the rear side.

  As shown in FIGS. 5 to 9, 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 the inner end in the vehicle width direction, and is inserted into the front region of the base bracket 31 from the outer side in the vehicle width via the operation shaft 32A. It is in a state of being pin-coupled so as to be rotatable. Further, the end of the rod 32 on the outer side (right side) 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 9, the release arm 33 is formed of a single sheet of steel or the like that is elongated in the front-rear direction. The release arm 33 is assembled in a state where the release arm 33 is rotatably supported with respect to the rod 32 by passing the rod 32 described above in the vehicle width direction at an intermediate position in the front-rear direction. The release arm 33 is assembled by welding one end of the loop handle 5 described above integrally to a portion extending from a midway point through the rod 32 to the front side. Further, the portion of the release arm 33 that extends from the midway point passed through the rod 32 to the rear side is bent into a crank shape on the inner side (left side) in the vehicle width direction and extends to the rear side. It is said that.

  As shown in FIG. 8, the release arm 33 includes a position directly above a pressure receiving piece 35 </ b> D projecting outward (right side) in the vehicle width direction formed at a lower edge portion of a release link 35 described later, and a release holding described later. It is arranged so as to extend to the rear side through the position directly above the pressure receiving piece 36C formed on the member 36 and projecting outward in the vehicle width direction. The release arm 33 is normally rearward with respect to the base bracket 31 around the rod 32 by the biasing force of a spring (not shown) that is hooked between the loop handle 5 and the skeleton of the seat cushion 3 (not shown). A force that rotates in the direction of lifting the portion extending to the side is applied. With the above configuration, in the free state, the release arm 33 is held in a state in which the loop handle 5 is pulled down. The release arm 33 is pulled upward from the pressure receiving piece 36C of the release holding member 36 and the pressure receiving piece 35D of the release link 35. The state is held in the state.

  The release arm 33 is operated such that a portion extending rearward from the rod 32 is pushed down by the operation of lifting the loop handle 5 around the rod 32. By the above operation, as shown in FIG. 12, the release arm 33 is pressed against the pressure receiving piece 36C of the release holding member 36 and the pressure receiving piece 35D of the release link 35 from above and pushes them downward. It has become. Specifically, the above-described release arm 33 is brought into contact with the pressure receiving piece 36C of the release holding member 36 and the pressure receiving piece 35D of the release link 35 in the following order by the operation of pulling up the loop handle 5 described above. It is designed to push down.

  That is, as shown in FIG. 10, the release arm 33 has a positional relationship in which the pressure receiving piece 36 </ b> C of the release holding member 36 and the pressure receiving piece 35 </ b> D of the release link 35 are substantially aligned in the front-rear direction. As shown in FIG. 12, when the loop handle 5 is pulled up, the loop handle 5 is pressed substantially simultaneously to push them downward. However, the release arm 33 is in an operation state in which the pressure receiving piece 36C of the release holding member 36 is lifted to a position higher than the pressure receiving piece 35D of the release link 35 as shown in FIG. 37, as shown in FIG. 37, the operation of pulling up the loop handle 5 first pushes the release holding member 36 downward by contacting the pressure receiving piece 36C of the release holding member 36 in advance. As shown in FIG. 38, the release arm 33 is configured such that the pressure receiving piece 36C of the release holding member 36 is substantially aligned with the pressure receiving piece 35D of the release link 35 by the above operation. It is also applied to 35D and pushes both of them downward.

  In this way, when the release arm 33 is in a stage of pushing down the pressure receiving piece 35D of the release link 35 described above, at least the pressure receiving piece 36C of the release holding member 36 is brought into an operation state in which the release arm 33 is pushed down from a high position. The release operation of the release link 35 is performed after the holding state of the release operation position of the memory link 34 by the holding member 36 is released. With this configuration, the release arm 33 moves the memory link 34 held in the release operation position via the release holding member 36 as shown in FIG. The operation of pushing and turning is not performed, so that no overload is applied to each member.

  As shown in FIGS. 7 to 9, the memory link 34 is formed of one 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 outside (right 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. Also, a release piece 34A that protrudes downward is formed in the rear region that extends rearward from the front region through which the rod 32 of the memory link 34 is passed. .

  The release piece 34A described above is inserted into the through hole 12Aa formed in the top plate portion 12A of the upper rail 12 described above with reference to FIG. 6 from the upper side, and is positioned immediately above the internal operation arm 39 assembled in the upper rail 12. It is set as the state arrange | positioned so that it may face (refer FIG. 11). The release piece 34A is formed by pushing the memory link 34 downward as shown in FIGS. 13 and 20 by the operation of the loop handle 5 described above with reference to FIG. 12 or the operation of the memory lever 6 described later with reference to FIG. A function of coming into contact with each lock portion 13C of the lock spring 13 from above via the internal operation arm 39 described above and pushing and bending them downward to remove them from the lock groove 11C (see FIG. 6) of the lower rail 11. It is supposed to be.

  Further, as shown in FIGS. 9 to 10, in the rear region of the memory link 34 described above, a vertically long shape curved in a substantially arc shape drawn around the axis center of the operation shaft 32 </ b> A that is the rotation center of the memory link 34. The through hole 34B is formed so as to penetrate in the vehicle width direction. The through hole 34B includes a holding operation pin 36B that protrudes inward (left side) in the vehicle width direction from a release holding member 36 that is rotatably attached to an inner surface side (right side) of a release link 35 that will be described later. As a state of passing from the outside in the vehicle width direction through the holding operation hole 35 </ b> B formed in the release link 35, the release link 35 functions as a hole for regulating the rotation range of the release holding member 36. In the hole region on the upper half side of the through hole 34B, a lead-in hole 34Ba is formed in which the shape of the hole is partially expanded to the rear side. As with the outer peripheral surface of the through hole 34B described above, the drawing hole 34Ba has a radially outer peripheral surface centered on the operation shaft 32A curved in a substantially arc shape centered on the operation shaft 32A. Is formed.

  As shown in FIG. 10, the above-described memory link 34 is always centered on the operation shaft 32 </ b> A with respect to the base bracket 31 by the biasing force of a spring (not shown) that is hooked between the above-described base bracket 31. A force that rotates counterclockwise in the figure is applied. With the above configuration, in the free state, the memory link 34 has an upper edge portion formed on an upper edge portion of the base bracket 31 described above with a flange 35C formed on a release link 35 described later. The stopper 31A is pressed from below and is held in a state where movement is restricted.

  As shown in FIG. 12, the memory link 34 described above has a piece of the release link 35 described above by an operation in which the release link 35 described later is pushed down around the operation shaft 32 </ b> A by the operation of the loop handle 5. It is operated so as to be pushed down by 35C. Further, as shown in FIG. 20, the memory link 34 has a transmission link 38 (described later) connected to a gear 34 </ b> C (external teeth) formed on the outer peripheral surface thereof via a L-shaped link 37. Even when the lever 6 is rotated by operating the lever 6, it is rotated in the clockwise direction in the figure about the operating shaft 32A as described above. As a result of these rotational operations, the memory link 34 is slid by the release piece 34A formed at the lower end of the memory link 34 by pushing down and bending each lock portion 13C of the lock spring 13 via the internal operation arm 39 as described above. The locked state of the slide of the rail 10 is released.

  As shown in FIGS. 7 to 9, the release link 35 is formed of a single sheet of steel or the like that is long in the front-rear direction facing 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 outer side (right side) in the vehicle width direction and rotatably 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 release link 35 is arranged side by side on the inner surface side (right 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 (operating shaft 32A). It is provided in a state where it can rotate.

  As shown in FIG. 10, the release link 35 is normally shown with the operation 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 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 of the release link 35, a hook piece 35C formed by being bent inward (left side) in the vehicle width direction at the upper edge portion of the rear region is formed 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. The engaging / disengaging piece 35A described above is inserted into the through hole 12Aa formed in the top plate portion 12A of the upper rail 12 described above with reference to FIG. 6 from the upper side, and faces the position directly above the memory body 21 assembled on the lower rail 11. It is set as the state where it was arranged. Specifically, as shown in FIG. 10, the engagement / disengagement piece 35A is in a state where the seat position is in the storage position before the change, that is, the holding release operation link 22A constituting the trigger 22 of the memory mechanism 20 described above is the memory slider 21B. When it is pressed in a standing posture adjacent to the rear side, it is positioned directly above the leaf spring 21Bb of the memory slider 21B.

  Then, as shown in FIG. 12, the engagement / disengagement piece 35A has a lower end portion formed on the leaf spring 21Bb when the release link 35 is pushed downward by the operation of the loop handle 5. It is operated so as to be pushed into the engagement hole 21Bb1. By the operation of being pushed in, the engagement / disengagement piece 35A pushes and deflects the leaf spring 21Bb described above to remove the hook 21Ba from the memory groove 21Ab of the memory plate 21A. The engagement / disengagement piece 35A is integrated with the memory slider 21B in the front-rear direction via the leaf spring 21Bb by entering the engagement hole 21Bb1.

  Further, the release link 35 is operated to be pushed down as described above, and the memory link 34 is operated to be pushed down by the hook 35C as shown in FIG. Thus, the locked state of the slide rail 10 by the lock spring 13 is released. Therefore, as shown in FIG. 15, by moving the seat position backward while maintaining the operation state of the release link 35, the release link 35 retracts the memory slider 21B together so that the memory slider 21B is pulled back. Can be moved. Further, during the forward movement, the memory slider 21B can be moved forward together in such a manner that the release link 35 pulls the memory slider 21B 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 engagement hole 21Bb1 of the memory slider 21B as shown in FIG. 10 by returning the operation of the loop handle 5 and returning the operation of the release link 35, as shown in FIG. The state where the leaf spring 21Bb is pushed and bent is released. As a result, the hook 21Ba is again returned to the state (locked state) where the hook 21Ba enters the corresponding memory groove 21Ab of the memory plate 21A by the spring biasing force of the leaf spring 21Bb. In addition, as shown in FIG. 11, the memory link 34 is also pulled back upward, and the slide rail 10 is returned to the slide-locked state by the restoring deformation of the lock spring 13.

  Further, as shown in FIGS. 9 to 10, in the rear region of the release link 35 described above, around the axis center of the shaft pin 36 </ b> A that is a rotation center of a release holding member 36 (described later) connected to the release link 35. A holding operation hole 35B that is curved in a substantially arc shape is formed so as to penetrate in the vehicle width direction. As shown in FIG. 10, the holding operation hole 35 </ b> B is a drawing hole for the through hole 34 </ b> B formed in the memory link 34 described above when the release link 35 and the memory link 34 described above are held at the initial positions. The holding operation pin 36B of the release holding member 36, which will be described later, is placed in a state where the hole region on the lower half side of the through hole 34B and a part of the shape overlap each other in the vehicle width direction. It is set as the state penetrated in the vehicle width direction across the hole shape which overlaps.

  As shown in FIGS. 19 to 20, the holding operation hole 35B of the release link 35 is pushed downward by itself, leaving the release link 35 as shown in FIG. 21 when the memory lever 6 is operated. When the memory link 34 is rotated so as to push and bend the lock spring 13 beyond the unlocking position shown in FIG. 20, the upper half side of the through hole 34B of the memory link 34 as shown in FIG. It is configured such that the shape is overlapped with the lead-in hole 34Ba formed in the hole region in the vehicle width direction. With this state, as shown in FIG. 22, a holding operation pin 36 </ b> B of a release holding member 36, which will be described later, passed over both holes (the holding operation hole 35 </ b> B and the through hole 34 </ b> B) is moved by a spring biasing force. It enters into the drawing hole 34Ba. As a result, the rotational movement of the memory link 34 relative to the release link 35 with respect to the release link 35 via the holding operation pin 36 </ b> B of the release holding member 36 is restricted, and the memory link 34 moves relative to the release link 35. It will be in the state hold | maintained at the attitude | position position to which cancellation | release operation was carried out.

  Further, as shown in FIGS. 8 to 9, the lower edge portion of the middle region extending rearward from the front region passed through the rod 32 of the release link 35 described above has an outer side (right side) in the vehicle width direction. A pressure receiving piece 35D that is bent and extended is formed. As shown in FIGS. 8 and 12, the pressure receiving piece 35 </ b> D is lowered by pressing the release arm 33 from the upper side by pushing the release arm 33 downward by operating the loop handle 5. It functions as a receiving part pushed around. Note that the release link 35 described above is not operated at all as shown in FIGS. 21 to 23 when the memory link 34 is operated by operating the memory lever 6 described above as shown in FIGS. ing.

  As shown in FIGS. 8 to 9, the release holding member 36 is formed of one sheet of steel or the like whose surface is directed in the vehicle width direction. The release holding member 36 is rotated by an axial pin 36A that has an axis line in the vehicle width direction at the inner surface side (right surface side) of the rear region of the release link 35, specifically, the lower inner surface side position of the holding operation hole 35B. It is provided as a pin-coupled state. A holding operation pin 36B is attached to the release holding member 36 at a position above the shaft pin 36A so as to protrude inward (left side) in the vehicle width direction. In addition, a pressure receiving piece 36 </ b> C is formed at the rear lower side edge portion of the release holding member 36 by being bent and extended outward (right side) in the vehicle width direction.

  As shown in FIG. 10, the holding operation pin 36 </ b> B described above is passed through the holding operation hole 35 </ b> B formed in the release link 35 and the memory link 34 when the release holding member 36 is assembled to the release link 35. It is assembled so as to pass through the hole 34B in the vehicle width direction. With the above assembly, the release holding member 36 is formed by overlapping the holding operation hole 35B in which the above-described holding operation pin 36B is formed in the release link 35 and the through hole 34B formed in the memory link 34 in the vehicle width direction. In the range of the hole shape, it is set in a state where it can be rotated with respect to the release link 35.

  As shown in FIG. 8, the pressure receiving piece 36 </ b> C projects from the release holding member 36 to the outside (right side) in the vehicle width direction, and is provided in a state where the arm shape is located immediately below the release arm 33. Yes. As shown in FIGS. 12 and 37, the pressure receiving piece 36 </ b> C is lowered by pressing the release arm 33 from the upper side by pushing the release arm 33 downward by operating the loop handle 5. It functions as a receiving part pushed around.

  As shown in FIG. 10, the above-described release holding member 36 is normally centered on 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 clockwise in the figure is applied. With the above configuration, the release operation member 36 is pressed against the rear side surface of the through hole 34B of the memory link 34 when the release link 35 and the memory link 34 are held at the initial positions. It is in a state of being held at the rotated position.

  As described above with reference to FIGS. 19 to 20, the release holding member 36 has the memory link 34 pushed downward by the operation of the memory lever 6, and the upper half side of the through hole 34B as shown in FIG. The pull-in hole 34Ba formed in the hole area and the holding operation hole 35B of the release link 35 are overlapped in the vehicle width direction, so that the holding operation pin 36B is spring-biased as shown in FIG. It is designed to enter the drawing hole 34Ba. Due to the above entry, the rotational movement of the memory link 34 in the counterclockwise direction with respect to the release link 35 via the holding operation pin 36 </ b> B is restricted, and the posture position where the memory link 34 is released from the release link 35. It will be in the state held by.

  As shown in FIG. 37, when the release arm 33 is pushed downward by the operation of the loop handle 5 from the state where the memory link 34 is held at the release operation position, the release holding member 36 is The holding operation pin 36B is removed from the pull-in hole 34Ba by being pushed and rotated counterclockwise by the release arm 33 around the shaft pin 36A. As a result of the above operation, the holding state of the memory link 34 at the release operation position via the release holding member 36 is released. As shown in FIG. 38, the memory link 34 is lowered to the flange 35C of the release link 35 by the spring biasing force. The operation position is once returned from the side to the pressed position.

  By this operation, the memory link 34 releases the state in which the lock spring 13 is pushed and bent downward as shown in FIG. 39 and returns the slide rail 10 to the state in which the slide rail 10 is slide-locked by the restoring deformation of the lock spring 13. It has become. However, as shown in FIG. 40, in the memory link 34 whose operation position is returned to the upper side, the release link 35 described above is continuously pushed downward by the release arm 33 by the operation of the loop handle 5 described above. Therefore, after abutting on the flange 35C, it is pushed downward together with the release link 35, and as shown in FIG. 41, the lock spring 13 is pushed downward again and bent. The slide lock is released.

  As shown in FIGS. 7 and 9, the L-shaped link 37 is formed of a single plate material such as steel that is cut into a substantially L shape with its surface facing in the vehicle width direction. The L-shaped link 37 is provided in a state in which a bent portion of the L-shape is rotatably connected to the inner surface side of the intermediate region of the base bracket 31 by a shaft pin 37A having an axis line in the vehicle width direction. . As shown in FIG. 11, the above-described L-shaped link 37 is normally centered on the shaft pin 37 </ b> A with respect to the base bracket 31 by the biasing force of a spring (not shown) that is hooked between the base bracket 31. A force that rotates counterclockwise in the figure is applied. With the above configuration, in the free state, the L-shaped link 37 moves with the arm portion extending above the L-shape being pressed from the rear side against the locking piece 31A formed on the upper edge of the base bracket 31. The state is held in a restricted state.

  The above-described memory lever 6 is connected to the distal end portion of the arm portion extending above the L-shaped link 37 via a double-structured cable 37B. With the above configuration, as shown in FIGS. 19 to 20, the L-shaped link 37 is rotated in the clockwise direction in the figure via the cable 37B by the operation of lifting the memory lever 6. By the above rotation operation, the L-shaped link 37 is operated by an operation cam 38D connected to a transmission link 38, which will be described later, by a kick pin 37C protruding in the vehicle width direction attached to the distal end portion of the arm portion extending rearward. Is pushed downward, and the memory link 34 geared to the transmission link 38 is pushed downward. With the above configuration, the memory link 34 is operated so as to be pushed downward by the operation of the memory lever 6.

  As shown in FIGS. 7 and 9, the transmission link 38 is formed of a single sheet of steel or the like that is cut into a substantially fan shape that faces in the vehicle width direction. The transmission link 38 meshes the gear 38B formed on the fan-shaped front outer peripheral surface with the gear 34C formed on the rear outer peripheral surface of the memory link 34 at the rear position of the memory link 34 described above. In this state, the rear end of the base bracket 31 is rotatably connected to the inner surface side of the rear region of the base bracket 31 by the shaft pin 38A having the axis line in the vehicle width direction. At the outer surface side position (left surface side position) of the front region of the transmission link 38 described above, an operation cam 38D is provided in a state of being rotatably connected by a shaft pin 38Da having an axis line in the vehicle width direction. .

  The operation cam 38D is formed of a substantially flat member whose surface is directed in the vehicle width direction. The operation cam 38D is always in the counterclockwise direction shown in the figure with respect to the transmission link 38 by the urging force of a spring (not shown) hooked between the operation cam 38D and the transmission link 38 described above. A rotating force is applied. With the above configuration, in the free state, the operation cam 38D is rotationally moved in the same direction at a position where it is applied from the front side to the locking piece 38C that extends in the vehicle width direction formed at the lower edge of the transmission link 38. The state is held as a restricted state.

  As shown in FIGS. 19 to 20, the operation cam 38D has the same structure as the L-shaped link 37 is pushed around the shaft pin 37A in the clockwise direction by the operation of lifting the memory lever 6 described above. The kick pin 37C of the L-shaped link 37 is pressed from above. Due to the pressing, the operation cam 38D receives a force to rotate counterclockwise in the figure with respect to the transmission link 38 around the shaft pin 38Da, but the movement in the same direction is restricted. The force received from the kick pin 37C of the character link 37 is integrated with the transmission link 38 and is pushed downward around the shaft pin 38A. The rotation of the transmission link 38 is transmitted to the memory link 34 by the rotation, and the memory link 34 is pushed downward to release the lock spring 13.

  Even if the operation cam 38D is pushed and bent to the position where the lock spring 13 is released from the slide lock by the rotation of the memory link 34 as shown in FIG. 20, further operation of the memory lever 6 as shown in FIG. As a result, the L-shaped link 37 pushes it downward. At this time, when the operation cam 38D is excessively pushed around, the memory link 34 is excessively pressed down and the internal operation arm 39 is excessively pressed against the lock spring 13 in the outer periphery of the internal operation arm 39 described later. The arcuate surface 39B1 formed on the surface allows the internal operation arm 39 to escape so as not to bend the lock spring 13 downward for a certain amount. However, in order to prevent the arc surface 39B1 from slipping out of the lock spring 13 and slipping out of the lock spring 13 on the outer peripheral surface of the internal operation arm 39, a lock spring is provided at the end position of the arc surface 39B1. A stopper 39B2 is formed so as to protrude when it hits 13. The stopper 39B2 restricts the movement of the internal operation arm 39 so as not to bend and push the lock spring 13 downward.

  Therefore, the operation cam 38D described above is out of contact with the kick pin 37C of the L-shaped link 37 at a stage before the stopper 39B2 of the internal operation arm 39 described above is brought into contact with the lock spring 13 and latched. As shown in FIG. 25, even if the rotation of the L-shaped link 37 proceeds, the L-shaped link 37 is not pushed further down, and the movement of the L-shaped link 37 is released, so that excessive power is not transmitted to the memory lever 6. It is possible to do so. As described above, when the operation cam 38D is removed from the contact state with the kick pin 37C of the L-shaped link 37, the memory link 34 returns to the upper side by its spring biasing force. . However, since the holding operation pin 36B of the release holding member 36 enters the drawing hole 34Ba of the memory link 34 by the spring biasing force as described above with reference to FIG. As shown in FIG. 28, the memory link 34 is held at the posture position where the release operation is performed with respect to the release link 35.

  Then, as shown in FIG. 25, from the state in which the vertical position relationship between the operation cam 38D and the kick pin 37C of the L-shaped link 37 is reversed due to the progress of the operation of the memory lever 6 described above, When the operation is returned, the operation cam 38D is pressed from below by the kick pin 37C of the L-shaped link 37 as shown in FIG. However, at this time, the operation cam 38D rotates with respect to the transmission link 38 about the shaft pin 38Da in the clockwise direction in the figure so that the L-shaped link 37 rotates in the counterclockwise direction in the figure. Therefore, when the operation of the memory lever 6 is returned, as shown in FIG. 27, the vertical positional relationship between the operation cam 38D and the kick pin 37C of the L-shaped link 37 is the same as that before operating the memory lever 6. It will be returned to the initial vertical relationship.

  As shown in FIGS. 6 to 7, the internal operation arm 39 has a shape in which a single sheet of steel or the like has a pair of left and right substantially pressing pieces 39 </ b> B facing in the vehicle width direction. It is formed to be bent. The internal operation arm 39 is provided in a state in which a rear end portion thereof is rotatably connected to the top plate portion 12A of the upper rail 12 described above with reference to FIG. 6 by a shaft pin 39A having an axis line in the vehicle width direction. . The internal operation arm 39 is normally illustrated around the shaft pin 39A as shown in FIG. 11, due to the biasing force of a spring (not shown) hooked between the top rail 12A of the upper rail 12 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 internal operation arm 39 is held in a state where rotational movement in the same direction is restricted at a position where it is applied to the top plate portion 12A (see FIG. 6) of the upper rail 12 from below. It is supposed to be in a state.

  As shown in FIG. 11, the left and right pressing pieces 39B of the internal operation arm 39 are positioned immediately above any one of the left and right lock portions 13C of the lock spring 13, as shown in FIG. Then, as shown in FIGS. 13 and 20, the internal operation arm 39 pushes the memory link 34 downward by the operation of the loop handle 5 described above with reference to FIG. 12 or the operation of the memory lever 6 described above with reference to FIG. Accordingly, the release piece 34A of the memory link 34 is pressed against the top plate portion from above, and is pushed around the shaft pin 39A in the counterclockwise direction in the figure. With the above configuration, the internal operation arm 39 pushes the left and right lock portions 13C of the lock springs 13 downward by the lower surfaces of the left and right pressing pieces 39B and removes them from the lock grooves 11C (see FIG. 6) of the lower rail 11. It is like that. The internal operation arm 39 is returned to the state shown in FIG. 11 by the spring biasing force when the operation state in which the memory link 34 is pushed down is returned and the release piece 34A is released upward, and the lock spring The left and right lock portions 13C of 13 are restored to the state of being inserted into the lock grooves 11C (see FIG. 6) of the lower rail 11.

  As shown in FIG. 20, the internal operation arm 39 described above is pushed down by the memory link 34 by the operation of the memory lever 6 described above, and the left and right lock portions 13C of the lock spring 13 are moved into the lock grooves 11C of the lower rail 11 (see FIG. 6). Even if the memory lever 34 is further removed, if it is further pushed down by the memory link 34 due to the further operation of the memory lever 6, as shown in FIG. 24, the outer peripheral surface on the front side of each pressing piece 39B A circular arc surface 39B1 formed on the right and left lock portions 13C of the lock spring 13 is ridden. The arc surface 39B1 has a curved shape in an arc shape drawn around the shaft pin 39A that is the rotation center of the internal operation arm 39. Accordingly, even if the circular arc surface 39B1 rides on the left and right lock portions 13C of the lock spring 13 and the rotational movement of the internal operation arm 39 is pushed down from that position, the power from the internal operation arm 39 to the lock spring 13 is increased. The transmission is released and the left and right lock portions 13C of the lock spring 13 are no longer pushed and bent downward. As a result, the lock spring 13 may have a problem such as bottoming on the bottom surface of the upper fin portion 12B (see FIG. 6) of the upper rail 12, or the memory lever 6 that performs an operation of pushing down the memory link 34 as shown in FIG. There is no situation where an excessive operating load is applied.

  On the outer peripheral surface of each pressing piece 39B of the internal operation arm 39, the above-mentioned arc surface 39B1 slides downward on each lock portion 13C of the lock spring 13 so as to come out from the lock spring 13 downward. In order to prevent this, a stopper 39B2 is formed so as to protrude so as to be brought into contact with each lock portion 13C of the lock spring 13 and latched at the end position (upper end position) of the arc surface 39B1.

<Overall operation>
In summary, the memory mechanism 20 and the operation mechanism 30 described above are moved as follows according to the operation of lifting the loop handle 5 and the operation of lifting the memory lever 6 described above with reference to FIGS. It has become. That is, first, 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, as shown in FIG. 13C enters the lock grooves 11C (see FIG. 6) of the lower rail 11 and is locked. Further, as shown in FIG. 10, in the memory mechanism 20, the hook 21Ba of the memory body 21 enters and locks into the memory groove 21Ab of the memory plate 21A, and the holding release operation link 22A of the trigger 22 is connected to the memory slider 21B. Are pushed from the rear side to form an adjacent positional relationship in a standing posture.

  When the loop handle 5 is first lifted from the initial state, the release link 35 is moved around the rod 32 by the release arm 33 integrally connected to the loop handle 5 as shown in FIG. It is rotated in the clockwise direction in the figure. As a result, the memory link 34 is also rotated from the upper side by the release link 35 in the clockwise direction shown in the figure, and the lock spring 13 is moved via the internal operation arm 39 as shown in FIG. The slide is unlocked by being pushed and bent downward. 12, the engagement / disengagement piece 35A of the release link 35 enters the engagement hole 21Bb1 of the leaf spring 21Bb of the memory slider 21B and pushes the leaf spring 21Bb downward to bend the hook 21Ba to the memory plate. The memory groove 21Ab of 21A is removed. By the above operation, the memory slider 21B is engaged with the release link 35 so as to be able to move integrally in the sliding direction.

  Therefore, as shown in FIG. 4, the operation state in which the lock spring 13 is pushed down by the internal operation arm 39 as shown in FIG. 14 by sliding the seat 1 in the front-rear direction while keeping the operation state in which the loop handle 5 is pulled up. The sheet position can be changed while moving the memory slider 21B together. Further, in this case, with the loop handle 5 pulled up, the seat position is retracted to the boarding / alighting support position near the rearmost (the phantom line position in FIG. 1) as shown in FIG. Even if the holding release operation link 22A is pressed against the stopper link 16A of the stopper bracket 16 waiting at the boarding / alighting support position from the front side, as shown in FIG. 16, the holding release operation link 22A is pushed back to the front side by the stopper link 16A. The slide pin 22Ac on the upper end side is slid in the escape region 22Bb2 of the long hole 22Bb of the power transmission plate 22B, and the stopper link 16A is released. With the above configuration, as shown in FIG. 17, the holding release operation link 22 </ b> A can pass through to the rear side of the stopper link 16 </ b> A and the seat position can be slid to the rear most position.

  Also, as shown in FIG. 18, when the seat position is returned from the rear most position to the front side, the stopper link 16A is pushed forward by the holding release operation link 22A and escapes from the holding release operation link 22A. Thus, the seat position can be returned to the position on the front side from the boarding / alighting support position (the imaginary line position in FIG. 1) near the rearmost. Then, by returning the operation of the loop handle 5 after the movement, the operation mechanism 30 and the memory mechanism 20 are returned to the initial position shown in FIGS. 10 to 11, and the seat position is locked at the changed position. be able to. With the above operation, the seat position adjustment operation using the loop handle 5 is completed.

  Next, the movement when the memory lever 6 is operated from the initial state will be described. That is, as shown in FIGS. 19 to 20, when the memory lever 6 is operated, the L-shaped link 37 is rotated through the cable 37 </ b> B, and the transmission link 38 pushed and kicked by the L-shaped link 37. Thus, the memory link 34 is rotated about the rod 32 in the clockwise direction in the figure. As a result, as shown in FIG. 20, the internal operation arm 39 is pushed downward by the memory link 34 and the lock spring 13 is pushed and bent downward to release the slide lock state.

  At the same time, as shown in FIGS. 21 to 23, the holding operation pin 36 </ b> B of the release holding member 36 enters the drawing hole 34 </ b> Ba of the memory link 34 by the rotation of the memory link 34. From there, as shown in FIGS. 24 to 26, even if the memory lever 6 is operated to the full stroke position, the operation cam 38D is removed from the contact with the L-shaped link 37, or the internal operation arm 39 is locked spring. The excessive amount of operation movement of the memory lever 6 is released by releasing the hit by the arc surface 39B1 so that 13 is not pushed too much. Then, even if the operation of the memory lever 6 is returned as shown in FIG. 27, the memory link 34 is held at the position where the release operation is performed by the hook with the holding operation pin 36B as shown in FIG. It becomes a state.

  Therefore, as shown in FIG. 1, after the memory lever 6 is operated, the seat 1 is slid from its position to the rear side, so that the lock spring 13 is pushed down by the internal operation arm 39 as shown in FIG. As shown in FIG. 30, the sheet position can be moved rearward while leaving the memory slider 21B. As a result of the movement, the holding release operation link 22A of the trigger 22 is pulled rearward from the memory slider 21B and rotated backward, and the operation cam 22C connected to the power transmission plate 22B of the trigger 22 is released as shown in FIG. The holding member 36 is kicked and the piece 36 </ b> D enters the state where it has penetrated downward.

  Therefore, as shown in FIG. 32, when the seat position is moved backward from the above state toward the boarding / alighting support position near the rearmost (the phantom line position in FIG. 1), the holding release operation link 22A of the trigger 22 is at the boarding / alighting support position. It is pressed from the front side against the stopper link 16A of the stopper bracket 16 that waits. Then, when the seat position moves backward as shown in FIGS. 33 to 34, the holding release operation link 22A is rotated in the form of being pushed back by the stopper link 16A along with the movement, and the power transmission plate The operation cam 22C coupled to 22B pushes the release piece 36D of the release holding member 36 from below, and the holding operation pin 36B of the release holding member 36 is removed from the drawing hole 34Ba of the memory link 34. As a result, the holding state of the memory link 34 at the release operation position is released, the memory link 34 returns to the upper side as shown in FIG. 35, and the lock spring 13 is again turned on each of the lower rails 11 as shown in FIG. The slide enters the lock groove 11C (see FIG. 6), and the slide is locked. By the above operation, the seat position is locked at the boarding / alighting support position (the imaginary line position in FIG. 1) near the rearmost.

  With the above lock, the seat position can be temporarily locked at the boarding / alighting support position near the rearmost (the phantom line position in FIG. 1), and a wide boarding space is secured on the front side of the seat 1. Retained. The rotation posture of the trigger 22 when the seat position is temporarily locked at the boarding / alighting support position near the rearmost (the phantom line position in FIG. 1) is again the power transmission plate 22B, as in FIG. The operation cam 22C coupled to the release holding member 36 is kicked by the release holding member 36 so that the operation cam 22C moves over the upper side 36D.

  Next, the movement when the memory lever 6 is operated again from the state where the seat position is locked at the boarding / alighting support position near the rearmost (the phantom line position in FIG. 1) will be described. In this case, the memory link 34 is pushed downward again and the lock spring 13 is lowered as in the case where the operation of the memory lever 6 is performed in the initial state shown in FIGS. As shown in FIG. 28, after the memory lever 6 is operated, the memory link 34 is held again at the position where it is released by being hooked with the holding operation pin 36B. It becomes a state. Therefore, as shown by the solid line state in FIG. 2, after the operation of the memory lever 6, the seat 1 is slid forward from the position, and the storage position before the change shown in the phantom line state in FIG. That is, the holding release operation link 22A of the trigger 22 can be moved to the front side from the rear side to the memory slider 21B left in the storage position before the change described above with reference to FIG.

  When the holding release operation link 22A of the trigger 22 is pressed from the rear side to the memory slider 21B left at the above-mentioned storage position, the sheet position is moved forward from there as in the case shown in FIGS. As a result, the holding release operation link 22A is rotated by the memory slider 21B so as to trip forward, and the operation cam 22C connected to the power transmission plate 22B pushes the release piece 36D from the lower side. Thus, the holding operation pin 36B of the release holding member 36 is removed from the drawing hole 34Ba of the memory link 34. As a result, the holding state at the release operation position of the memory link 34 is released, and the memory link 34 returns to the upper side in the same manner as in the state shown in FIG. 35, as in the state shown in FIG. The lock spring 13 enters the lock grooves 11C (see FIG. 6) of the lower rail 11 again, and the slide is locked. By the above operation, the seat position is returned to the storage position before the change (the imaginary line position in FIG. 2) and is locked.

  Next, from the state (memory state) in which the memory link 6 shown in FIGS. 19 to 20 is operated and the memory link 34 is held at the released position as shown in FIG. The operation when the loop handle 5 is operated as shown in FIG. In this case, as shown in FIG. 37, the pressure receiving piece 36C of the release holding member 36 that holds the memory link 34 in the release operation position is higher than the pressure receiving piece 35D of the release link 35. The pressure receiving piece 36C of the release holding member 36 hits the release arm 33 and is pushed downward. As a result, the holding operation pin 36B of the release holding member 36 is removed from the drawing hole 34Ba of the memory link 34, and the holding state of the memory link 34 at the release operation position is released.

  Then, as shown in FIG. 38, the memory link 34 is returned to the position where it is pressed from the lower side against the flange 35C of the release link 35 by the spring biasing force, and the slide rail is restored by the restoring deformation of the lock spring 13 as shown in FIG. 10 (see FIG. 6) is returned to the slide-locked state. However, as shown in FIG. 40, as the above-described operation of the loop handle 5 proceeds, the above-described release link 35 is pushed down, so that the memory link 34 is pushed down together with the release link 35 again. Then, as shown in FIG. 41, the lock spring 13 is once again pushed and bent downward, and the slide lock is released.

  The operation of the loop handle 5 in the memory state after the operation of the memory lever 6 shown in FIG. 3 is performed as shown in FIG. 42 by the memory slider 21B in which the holding release operation link 22A of the trigger 22 is left at the storage position described above. When it is performed at a position away from the rear side, the engagement / disengagement piece 35A of the release link 35 is pushed down at a position disengaged rearward from a position where it can enter the engagement hole 21Bb1 formed in the leaf spring 21Bb of the memory slider 21B. As a result, the operation is simply performed so as not to enter the engagement hole 21Bb1 but to be pushed down to a height position corresponding to the position where the engagement hole 21Bb1 can be entered. The height position at which the engagement / disengagement piece 35A is pushed down is a position that falls within a height region in which the leaf spring 21Bb is bridged obliquely.

  However, by moving the seat position forward from the position while the loop handle 5 is pulled up, the engagement / disengagement piece 35A of the release link 35 rides on the leaf spring 21Bb as shown in FIG. 44, as shown in FIG. 45, it slides to the position where the engagement hole 21Bb1 is located while passing through the plate spring 21Bb, which rises diagonally in a forwardly rising manner, while pushing and bending the plate spring 21Bb downward. In this way, it enters the engagement hole 21Bb1. As a result of the above movement, the leaf spring 21Bb is pushed downward and the hook 21Ba is removed from the memory groove 21Ab of the memory plate 21A. As a result, the memory slider 21B can move integrally with the release link 35 in the sliding direction, which is the same state as when the loop handle 5 is operated in the initial state shown in FIG. Accordingly, thereafter, the seat position can be adjusted while pulling the memory slider 21B as in the case described above, or the loop handle 5 can be returned and locked at that position.

  By the way, by the operation of the memory lever 6 described above with reference to FIGS. 19 to 20, the operation mechanism 30 is switched to the memory state as shown in FIG. 30, and the holding release operation link 22A of the trigger 22 is left in the storage position. When the seat position is suddenly moved forward due to the occurrence of a frontal collision of the vehicle in the state separated from the slider 21B, the holding release operation is performed as shown in the phantom line state of FIG. Even if the link 22A is pressed against the memory slider 21B from the rear side and pushed up to a standing posture, the holding release operation link 22A is pushed by the operation cam 22C connected to the power transmission plate 22B at that position. Even if the holding state of the memory link 34 at the release operation position is released, the lock spring 13 returns to the lock position as shown in FIG. Try operation will at a later point in time to, seat position is sometimes overcome the operation about to be moved faster in the forward direction. In such a case, as shown by the phantom line state in FIG. 46, the holding release operation link 22A is configured to step on the memory slider 21B at the above-mentioned standing posture position to receive the force applied to the front side thereof. If so, an excessive load is applied to each mechanism including the holding release operation link 22A, and the load cannot be appropriately received.

  However, even if the holding release operation link 22A is pressed against the memory slider 21B at a speed that is too rapid from the rear side as described above, , The slide pin 22Ac is not in the upright position with respect to the power transmission plate 22B, as shown by the solid line state in FIG. By sliding in 22Bb2, a strong hit with the memory slider 21B can be released. According to the above configuration, even if the lock spring 13 is returned to the locked position at the position beyond the lock position to be originally locked as shown in FIG. The time delay can be absorbed without overloading other mechanisms. Even when the lock spring 13 recovers from a lock at such a rapid speed as described above, the elastic force of the lock spring 13 causes the tooth to jump forward by one pitch from the lock position where the lock should be recovered. The lock can be restored.

  Then, when the lock spring 13 returns to the locked position at the position where the tooth jumps forward by one pitch, as shown by the solid line state in FIG. It will be in the state located in front rather than the rear side engagement hole 21Bb1 formed in this. However, when the tooth jump occurs, the leaf spring 21Bb has another engagement hole at a position where the engagement / disengagement piece 35A can be received when the engagement / disengagement piece 35A of the release link 35 is pushed down at that position. 21Bb1 is formed. Therefore, even after the lock is recovered at the position where the tooth jumps, the operation of the loop handle 5 (see FIG. 12) is performed from there, so that the release link 35 is moved integrally with the memory slider 21B in the sliding direction. It can be engaged in the state to be made to.

<< Configuration of the operation tool 40 >>
By the way, between the memory lever 6 and the L-shaped link 37 described above with reference to FIG. 19, the operating body 40 that transmits the operation movement amount pulled up of the memory lever 6 to the L-shaped link 37 through the pulling operation of the cable 37B. (See FIG. 48). As shown in FIG. 48, the operation body 40 includes a base plate 41 that supports the memory lever 6 in a state of being rotatably connected to a pin, a first operation link 42 that is integrally attached to the memory lever 6, and a base plate 41. A second operation link 43, which is rotatably connected to a pin and rotates integrally with the first operation link 42 by engagement with the first operation link 42, and the first operation link 42 and the second operation link 43. And a linear solenoid actuator 44 that switches between being engaged and disengaged.

  The base plate 41 is formed of a single plate material such as a substantially rectangular steel having a surface facing in the vehicle width direction. The base plate 41 is provided so as to be integrally fixed to the skeleton of the side portion on the outer side (right side) of the seat cushion 3 (not shown) in the vehicle width direction. The above-described base lever 41 is provided with the above-described memory lever 6 in a state where the above-described memory lever 6 is rotatably connected by a shaft pin 41A having an axis line in the vehicle width direction. As shown in FIG. 48, the memory lever 6 is normally rotated around the shaft pin 41A in the clockwise direction by the biasing force of a spring (not shown) hooked between the memory lever 6 and the base plate 41 described above. It is assumed that force is applied.

  With the above configuration, in the free state, the memory lever 6 is held in a state where rotational movement in the same direction is restricted at a position where the memory lever 6 is in contact with the stopper piece 41B formed on the base plate 41 from above. Yes. As shown in FIGS. 49 and 51, the memory lever 6 is integrally attached to the memory lever 6 by an operation of pulling it up counterclockwise against the biasing force of the spring (not shown). The first operation link 42 is rotated in the same direction.

  At this time, as shown in FIG. 48, the memory lever 6 is shown in FIG. 49 when the second operation link 43 is disengaged from the first operation link 42 by an actuator 44 described later. As described above, the second operation link 43 is left to rotate idly. However, when the memory lever 6 is switched to a state where the second operation link 43 is engaged with the first operation link 42 by an actuator 44 described later, as shown in FIG. 50, as shown in FIG. The second operation link 43 is also rotated so as to be pulled together, and the cable 37B connected to the second operation link 43 is pulled. By the pulling operation of the cable 37B, as described above with reference to FIG. 19, the operation movement amount to which the memory lever 6 is pulled up is transmitted to the L-shaped link 37 and the L-shaped link 37 is rotated. .

  As shown in FIG. 48, the first operation link 42 is formed of a single sheet of steel or the like whose surface is directed in the vehicle width direction, and is integrally attached to the memory lever 6 described above. Yes. With the above configuration, as shown in FIGS. 49 and 51, the first operation link 42 rotates integrally with the memory lever 6 around the shaft pin 41 </ b> A when the memory lever 6 is pulled up. It has become. The first operation link 42 described above is provided with a relief hole 42A curved in an arc shape drawn around the axis center of the shaft pin 41A at a position spaced radially outward from the shaft pin 41A that is the center of rotation. It is formed in a shape penetrating in the width direction. Further, at the end of the escape hole 42A on the counterclockwise direction in the figure centering on the shaft pin 41A, a lead-in hole 42B extending in a shape of bending the hole shape radially inward toward the shaft pin 41A is formed. Has been.

  As shown in FIG. 48, the second operation link 43 is formed of a single sheet of steel or the like whose surface is directed in the vehicle width direction, and is connected to the base plate 41 so as to be rotatable with the shaft pin 41A described above. It is said that it was in the state. The second operation link 43 is normally applied with a force that rotates in the clockwise direction around the shaft pin 41A by the biasing force of a spring (not shown) hooked between the second operation link 43 and the base plate 41 described above. It is in a state.

  With the above configuration, in the free state, the second operation link 43 is held in a state where rotational movement in the same direction is restricted at a position where the second operation link 43 is applied to a stopper piece (not shown) formed on the base plate 41 from the front side. It is in a state. The second operation link 43 is provided in a state where it can rotate about the same axis as the first operation link 42 in the axial direction with respect to the base plate 41 described above. As shown in FIG. 48, the second operation link 43 is in the state in which the second operation link 43 and the first operation link 42 described above are held at the initial positions before being rotated with respect to each other. A pull-in hole 42B formed in the first operation link 42 and a long hole 43A that matches the shape in the vehicle width direction are formed in a shape penetrating in the vehicle width direction. An engagement pin 44A operated by an actuator 44 described later straddles the elongated hole 43A of the second operation link 43 and the drawing hole 42B of the first operation link 42 communicating with each other in the vehicle width direction. It is said that it has been passed through.

  The actuator 44 is attached to the second operation link 43 described above, and extends in the vehicle width direction across the elongated hole 43A formed in the second operation link 43 and the drawing hole 42B formed in the first operation link 42. It has the engaging pin 44A passed through. As shown in FIGS. 48 and 50, the actuator 44 is configured so that the engagement pin 44 </ b> A is longer than the second operation link 43 described above by drive control by a control unit C (described later) connected to the actuator 44. It is configured to be driven so as to be raised and lowered only in the linear direction along the shape of the hole 43A.

  The control means C described above is configured to drive the actuator 44 by determining the vehicle stop state based on whether or not a detection signal indicating the vehicle stop state is input from the outside. Specifically, when the control means C determines that the vehicle is not stopped, the engaging pin 44A is moved to the lower end side of the long hole 43A as shown in FIG. 48 without driving the actuator 44 described above. In this state, the engagement pin 44A is positioned at the lower end portion of the pull-in hole 42B, that is, the portion connected to the escape hole 42A. Therefore, even if the memory lever 6 is pulled up from the above state, as shown in FIG. 49, the engaging pin 44A slides in the escape hole 42A of the second operation link 43, and the operation movement amount of the memory lever 6 is reduced. It is escaped without being transmitted to the second operation link 43.

  On the other hand, when the control means C determines that the vehicle is in a stopped state, it drives the actuator 44 described above to bring the engagement pin 44A up to the upper end portion of the long hole 43A as shown in FIG. Thus, the upper end portion of the pull-in hole 42B is positioned. Therefore, when the memory lever 6 is pulled up from the above state, as shown in FIG. 51, the engaging pin 44A is moved in the same direction by being pushed by the inner peripheral surface of the drawing hole 42B of the first operation link 42, The second operation link 43 is rotated and operated in the same direction via the engagement pin 44A. As a result, the cable 37B connected to the second operation link 43 is pulled, and the L-shaped link 37 described above with reference to FIG. 19 is rotated.

  In this way, the operating body 40 releases the lock spring 13 without performing the rotation operation of the L-shaped link 37 described above with reference to FIG. 19 even if the operation of the memory lever 6 described above is performed unless the vehicle is stopped. The operation is not performed. That is, the operating body 40 is configured so that the operation of the memory lever 6 can be effectively performed only when the vehicle is stopped. If the vehicle is not stopped, the seat position is set to the boarding / exiting support position (virtual line in FIG. 1). It cannot be moved back to (position). Therefore, even if the memory lever 6 is erroneously operated when the vehicle is traveling, it is possible to prevent the driver's driving posture from being greatly collapsed.

<Summary>
In summary, the sheet according to 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 and to be held at the operating position. The control means (control means C) controls the operation body (operation body 40) to switch between a valid state and an invalid state of the unlocking operation of the lock mechanism (lock spring 13) based on a detection signal from the outside. ). With such a configuration, the operation of the operation body (operation body 40) is invalidated by the control means (control means C) based on a detection signal from the outside at a predetermined time (when the vehicle is not stopped). Can be

  Further, the switching control by the control means (control means C) performs switching to connect or shut off the power transmission path of the operation load to the lock mechanism (lock spring 13) of the operation body (operation body 40). Is. With this configuration, even when an operation load is input to the operation body (operation body 40) in a state where the release operation by the operation body (operation body 40) is invalidated, the force is transmitted to the power. Since it can escape by the interruption | blocking of a path | route, it can prevent that an excessive load is applied to the operation body (operation body 40).

  The control means (control means C) is configured to switch between connection and disconnection of the power transmission path by a linear solenoid actuator (actuator 44). Thus, by using the linear solenoid actuator (actuator 44) for switching the power transmission path, the switching control can be performed simply and instantaneously.

  Further, the control means (control means C) switches to the state where the power transmission path is connected by the operation of the actuator (actuator 44) in the direction opposite to the gravity direction, and switches to the state where the power transmission path is cut off by the operation in the direction of gravity. It is configured. With this configuration, when the control means (control means C) or the actuator (actuator 44) fails, the power transmission path of the operating body (operating body 40) is blocked by the gravitational action, and the operating body ( The operation of the operating body 40) can be invalidated.

  In addition, the lock mechanism (lock spring 13) is locked by operating the operating body (operating body 40) while moving the seat position of the driver's seat from the predetermined driving posture position to the boarding / exiting support position that enlarges the entrance / exit opening to a predetermined state. It is set as the structure hold | maintained in the cancelled | released state. By adopting such a configuration, the operation of the operating body (the operating body 40) is invalidated at a predetermined time (when the vehicle is not stopped) so that the driving posture of the driver is not greatly broken. Can do.

  Further, the control means (control means C) enables the unlocking operation of the lock mechanism (lock spring 13) by the operating body (operating body 40) when the vehicle is stopped based on the detection signal indicating the stopped state of the vehicle. When the vehicle is not in a stop state, the release operation of the lock mechanism (lock spring 13) by the operation body (operation body 40) is switched to be invalidated. With such a configuration, it is possible to prevent the operation body (operation body 40) from being operated unless the vehicle is in a stopped state.

<Other embodiments>
As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, the configuration of the slide rail device for a vehicle according to the present invention is used for various vehicles such as a seat applied to a vehicle other than an automobile such as a railroad, an airplane, and a ship, in addition to a seat other than a driver's seat of an automobile. It can be widely applied to other sheets. The slide rail may change the seat position in the vehicle width direction. In addition, the slide rail is used for connecting the seat back to a vehicle body such as a vehicle side wall so that the backrest angle can be adjusted, as disclosed in documents such as JP 2010-274738 A. It may be used.

  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.

  In addition, for the operating body, “a configuration in which the lock mechanism that locks the seat position is released by an operation load and is held at the operating position” means that the lock mechanism is unlocked by operating the operating body and then locked. This indicates a configuration in which the operating body is held at the release position depending on the state of the mechanism. As an example of such a configuration, the lock mechanism locks the object by pushing it into the operating body as in the so-called interlock mechanism disclosed in the literature such as JP2012-131251A, and the operating body. After the unlocking operation is performed by, even if the unlocking operation is released, the object is not automatically locked, but it can be locked by performing a separate pushing operation on the object. Examples include a configuration in which the lockable state is maintained. As described above, by applying the configuration of the present invention to the configuration in which the lock mechanism is held in the released operation state by once operating the operating body, such an operation is performed at a predetermined time. It can be invalidated so that convenience is improved, and convenience can be improved.

  In addition, the operation invalid state of the operating body switched by the control means is a state in which the unlocking operation of the lock mechanism is not performed even if the operating body is operated, that is, the operating body is operated in the idling state. It may be in a state where the body operation itself cannot be performed. In addition, the switching to connect the power transmission path of the operation load to the lock mechanism of the operating body or to shut it off so that it can be released is a switching mechanism comprising a combination of a long hole and a pin as shown in the above embodiment, A clutch mechanism using various cams or other mechanisms may be used. The actuator at that time is not limited to a linear solenoid actuator, and various actuators can be used.

  In addition to the detection signal indicating the stop state of the vehicle, the detection signal serving as a determination reference for switching the operating body between the valid state and the invalid state of the unlocking operation of the lock mechanism is variously input from the seating sensor and the like. May be a detection signal. Specifically, various detection signals such as a detection signal indicating a stop state of the vehicle such as a parking brake and a side brake can be used.

DESCRIPTION OF SYMBOLS 1 Seat 2 Seat back 3 Seat cushion 4 Headrest 5 Loop handle 6 Memory lever 10 Slide rail 11 Lower rail 11A Bottom part 11B Lower side fin part 11C Locking groove 12 Upper rail 12A Top plate part 12Aa Through hole 12Ab Through hole 12B Upper side fin part 12Ba Hook 12Bb Hook 12C Through groove 13 Lock spring (lock mechanism)
13A Front end portion 13B Rear end portion 13C Lock portion 14 Release member 15 Tension spring 16 Stopper bracket 16A Stopper link 16A1 Shaft pin 16B Locking piece 20 Memory mechanism 21 Memory body 21A Memory plate 21Aa Guide rail 21Ab Memory groove 21B Memory slider 21Ba Hook 21Ba1 Shaft pin 21Bb Leaf spring 21Bb1 Engagement hole 22 Trigger 22A Holding release operation link 22Aa Shaft pin 22Ab Leg piece 22Ac Slide pin 22Ad Stopper pin 22B Power transmission plate 22Ba Shaft pin 22Bb Long hole 22Bb1 Power transmission area 22Bb2 Relief area 22C22 Operation cam 22Ca Shaft pin 22Cb Locking piece 22Cc Operation protrusion 30 Operation mechanism 31 Base bracket 31A Locking piece 31C Locking piece 32 Rod 32A Operation shaft 33 Release arm 34 Memory link 34A Release piece 34B Through hole 34Ba Pull-in hole 34C Gear 35 Release link 35A Engagement / disengagement piece 35B Holding operation hole 35C Fitting piece 35D Pressure receiving piece 36 Release holding member 36A Axis pin 36B Holding operation pin 36C Pressure receiving piece 36D Kicked piece 37 L-shaped link 37A Shaft pin 37B Cable 37C Kick pin 38 Transmission link 38A Shaft pin 38B Gear 38C Locking piece 38D Operation cam 38Da Shaft pin 39 Internal operation arm 39A Shaft pin 39B Pressing piece 39B1 Arc surface 39B2 Stopper 40 Operating body 41 Base plate 41A Shaft pin 41B Stopper piece 42 First operation link 42A Relief hole 42B Retraction hole 43 Second operation link 43A Long hole 44 Actuator 44A Engagement pin C Control Means F Floor BP B Pillar M Slide rail device for vehicle

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,
A vehicle seat having control means for controlling the operation body to switch between a valid state and an invalid state of a release operation of the lock mechanism based on a detection signal from the outside. The vehicle seat according to claim 1,
A vehicle seat in which the switching control by the control means performs switching to connect or shut off a power transmission path of an operating load for the operating body to the lock mechanism. The vehicle seat according to claim 2,
The vehicle seat according to claim 1, wherein the control means is configured to switch connection and disconnection of the power transmission path by a linear solenoid actuator. The vehicle seat according to claim 3,
The control means is configured to switch to a state in which the power transmission path is connected by operation in a direction opposite to the gravity direction of the actuator, and to switch to a state in which the power transmission path is blocked by operation in the direction of gravity. Sheet. The vehicle seat according to any one of claims 1 to 4,
A configuration in which the lock mechanism is held in an unlocked state by operation of the operating body while the seat position of the driver's seat is moved from a predetermined driving posture position to a boarding / exiting support position that enlarges the boarding / exiting opening to a predetermined state. A vehicle seat. The vehicle seat according to any one of claims 1 to 5,
The control means enables the operation of the lock mechanism to be released by the operating body when the vehicle is stopped based on a detection signal indicating the stop state of the vehicle, and the operation of the lock mechanism by the operating body when the vehicle is not stopped. A vehicle seat configured to be switched to invalidate the release operation.

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