JP2018184025A - Sliding rail device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid input of overload between a memory member storing a seat position before change and a trigger detecting contact with the memory member.SOLUTION: A sliding rail device M has an overload avoidance mechanism 22M. The overload avoidance mechanism 22M can bring a trigger link 22A into an angled position so that contact with a memory piece 21B is avoided, when the trigger link 22A, which operates so as to contact the memory piece 21B to lock-return a locking spring 13 by a frontward returning operation of a seat position to a storing position before change where the memory piece 21B remains, is pushed frontward in a state of an initial position of being pressed from the rear by the memory piece 21B before a change of the seat position.SELECTED DRAWING: Figure 26

Description

  The present invention relates to a slide rail device for a vehicle. Specifically, the seat position can be adjusted by contacting the memory member with a slide rail that can be adjusted by releasing the lock mechanism and a memory member that can store the position before the change of the seat position by mechanical engagement. The present invention relates to a vehicle slide rail device having a memory mechanism that operates to return the vehicle to the storage position before the change.

  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 capable of adjusting the seat position by a release operation of the lock mechanism, and a memory mechanism for storing the position before the change of the seat position by mechanical engagement so that the position can be returned to the storage position before the change. , Are provided. In the initial state, the lock mechanism is held in a state in which the seat position is locked, and can be 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 passenger lever provided separately from the release lever described above.

  Specifically, the memory mechanism described above performs the release operation of the lock mechanism described above by operating the above-described entry / exit lever, and leaves the memory member engaged with the slide position where the release operation is performed. The trigger for detecting contact with the memory member can be switched to a state in which the sheet position can be changed in such a manner as to be separated from the memory member. The memory mechanism described above is configured so that the trigger described above is applied to the memory member remaining at the storage position described above by returning the sheet position to the storage position before the change after the change of the sheet position described above, and the lock mechanism. Is pushed and moved to return to the locked state. In the above-described memory mechanism, when the release lever is operated and the sheet position is changed, the memory member is operated by the release lever so as to be removed from the position storage state, thereby changing the sheet position. Along with this, the memory position is changed.

JP 2010-125917 A

  In the above prior art, if a force is applied to move the seat position in the direction opposite to the direction away from the memory member after the operation of the passenger lever, an excessive load is applied between the memory member fixed at the storage position and the trigger. There is a fear. The present invention was devised to solve the above problem, and the problem to be solved by the present invention is to detect the hit between the memory member storing the position before the change of the seat position and the memory member. This is to prevent an overload from being input between the trigger to be performed.

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

  According to a first aspect of the present invention, there is provided a slide rail capable of adjusting the seat position by a release operation of the lock mechanism, and a memory member capable of storing the position before the change of the seat position by mechanical engagement. And a memory mechanism that operates to return the seat position to the pre-change storage position. In this vehicle slide rail device, the lock mechanism is removed from the locked state and the memory member is removed from the position storage state and operated so as to be pulled in the sliding direction, while the memory member is left in the position-stored state. And a memory operation mechanism that operates to release the lock mechanism from the locked state.

  The memory mechanism is held in an initial posture state in which the sheet position is in the storage position before the change and is pressed against the memory member from one side in the sliding direction. By leaving the position stored in one side in the sliding direction, the seat position is changed to the other side tilted posture so as to be moved to the other side in the sliding direction by urging, and the sheet position is stored before the change. The trigger link that is pushed and moved to the initial posture by hitting the memory member by the movement returned to the position to release the release state of the lock mechanism by the memory operation mechanism, and the trigger link is in the initial posture To the memory member whose sheet position is in the position memorized state by the operation of the memory operation mechanism. The memory member is moved to the other side in the sliding direction while the trigger link is pushed and tilted so as to be moved to the one side in the sliding direction by hitting the memory member with respect to the operation pushed to the other side in the direction. The overload avoidance mechanism that allows the sheet position to be moved to the area beyond the sheet position from the state where the trigger link is moved to the area beyond the memory member to the other side of the slide direction by the overload avoidance mechanism. While the trigger link is bent and rotated in a folded manner by hitting the memory member with respect to the movement returned to one side in the sliding direction with respect to a certain memory member, the memory member is moved to a region beyond the one side in the sliding direction. And an escape mechanism that allows the return.

  According to the first aspect of the invention, the seat position is in the storage position before the change, that is, the trigger link is in the initial posture pressed against the memory member in the position storage state from one side in the sliding direction. Even if the trigger link is operated to be pushed into the memory member from one side in the sliding direction by the operation of the memory operation mechanism, the trigger link is released from the contact with the memory member by the overload avoidance mechanism. The memory member can be moved to a region beyond the other side in the sliding direction while being in an inclined posture. Further, when the trigger link is operated so as to be returned to one side from a state in which the memory member extends beyond the other side in the sliding direction, the trigger link allows the trigger link to escape from the memory member by the escape mechanism. Thus, the memory member can be returned to the region beyond the one side in the sliding direction while being bent and rotated in a bent state. With such a configuration, it is possible to appropriately avoid an overload being input between the memory member and the trigger link without impairing the position detection function caused by the contact of the trigger link with the memory member.

It is a side view showing the operation | movement outline | summary by operation of the passenger lever of the slide rail apparatus for vehicles of Example 1. FIG. It is a side view showing adjustment operation of a seat position by operation of a loop handle. It is a side view showing the state where the seat position is locked by returning the operation of the passenger lever. It is a perspective view showing the whole structure of the slide rail apparatus for vehicles. It is a disassembled perspective view of the left rail structure. It is the perspective view which visualized and represented the inside of the left rail structure. It is the perspective view which looked at FIG. 6 from the other side. It is the disassembled perspective view represented as the state which removed the operation mechanism from the rail structure of the left side. It is the disassembled perspective view which looked at FIG. 8 from the other side. It is the disassembled perspective view represented as a state which removed the memory piece from the memory rail. It is a disassembled perspective view of an operation mechanism. It is the disassembled perspective view which looked at FIG. 11 from the other side. It is a mimetic diagram showing the initial state of the slide rail device for vehicles. It is the schematic diagram which emphasized and represented the initial state of the operation system moved by operation of a loop handle. It is the schematic diagram showing the state by which the loop handle was operated from FIG. 14, and the slide lock was cancelled | released. FIG. 16 is a schematic diagram showing a state where the loop handle is further operated to the limit position from FIG. 15. FIG. 15 is a schematic diagram illustrating a state in which the seat position is moved backward while the loop handle of FIG. 14 is being operated. FIG. 18 is a schematic diagram illustrating a state in which the operation of the loop handle is returned and is slide-locked at the movement position of FIG. 17. It is the schematic diagram which emphasized and represented the initial state of the operation system moved by operation of a passenger lever. FIG. 20 is a schematic diagram illustrating a state in which the slide lock is released in such a manner that the entry / exit lever is operated to leave the memory piece from FIG. 19. FIG. 21 is a schematic diagram illustrating a state in which the memory position is left and the seat position is moved rearward while the operation lever of FIG. 20 is operated. FIG. 22 is a schematic diagram showing a state where the operation of the passenger lever is returned and is slide-locked at the movement position of FIG. 21. It is the schematic diagram showing the state by which the boarding lever was operated again in the movement position of FIG. 22, and the slide lock was cancelled | released. FIG. 24 is a schematic diagram illustrating a state where the seat position is moved forward while the operation lever of FIG. 23 is operated, and the trigger link is pushed against the memory piece. FIG. 25 is a schematic diagram illustrating a state in which the seat position is slide-locked to a storage position before change by the operation of FIG. 24. FIG. 21 is a schematic diagram illustrating a state in which the seat position is moved forward while the operation state of the passenger lever of FIG. FIG. 27 is a schematic diagram showing a state where the trigger link has moved over the memory piece to the front side by further forward movement of the seat position from FIG. 26. FIG. 28 is a schematic diagram showing a state where the seat position is moved backward from the movement position of FIG. 27 and the trigger link is climbed on the memory piece. FIG. 29 is a schematic diagram illustrating a state in which the trigger link pushes the memory piece rearward and is pulled out rearward by further backward movement of the seat position from FIG. 28. FIG. 23 is a schematic diagram illustrating a state in which the slide handle is released by operating the loop handle at the movement position of FIG. 22. FIG. 31 is a schematic diagram illustrating a state in which the seat position is moved forward while the loop handle of FIG. 30 is operated and the link is pressed against the memory piece. FIG. 32 is a schematic diagram illustrating a state in which the follower link is pushed and tilted to a position where the memory piece bottoms out due to further forward movement of the seat position from FIG. 31. FIG. 33 is a schematic diagram showing a state in which the follower link is returned to the pushing portion of the memory piece by further forward movement of the seat position from FIG. 32.

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

<< General structure of slide rail device M >>
First, the configuration of the seat 1 to which the slide rail device M (vehicle slide rail device) according to the first embodiment is applied will be described with reference to FIGS. As shown in FIG. 1, the seat 1 of this 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 described above is connected to the floor F of the vehicle via a pair of left and right slide rails 10 constituting the slide rail device M described above. 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.

  In the following description, when directions such as front / rear, up / down, left / right, and the like are indicated, the directions shown in the drawings are indicated. Further, the term “seat width direction” refers to the lateral width direction (left-right direction) of the seat 1, and the term “vehicle width direction” refers to the lateral width direction (left-right direction) of the vehicle. Therefore, the term “inside in the vehicle width direction” refers to the left side of the seat 1, that is, the side with the passenger seat (not shown), and the term “outside in the vehicle width direction” refers to the right side of the seat 1, ie, not shown. It points to the side with the entrance door.

  In the initial state, the above-described seat 1 is in a state in which the position of the front-rear direction on the floor F (hereinafter referred to as “seat position”) is fixed as the slide of each slide rail 10 is locked by urging. Is held in. As shown in FIG. 2, the slide rails 10 described above are released from the slide-locked state all at once by the operation of pulling up the loop handle 5 provided at the front lower portion of the seat cushion 3 by the user. Thus, the seat position can be switched to a state that can be adjusted in the front-rear direction. Each slide rail 10 is returned to the state where the slide is locked again at that position 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 also be operated by an operation in which the passenger is lifted by the user with the passenger lever 6 provided on the outer side (right side) of the seat cushion 3 in the vehicle width direction. The slide-locked state is released all at once (circled number 1). However, at that time, each slide rail 10 is operated by the operation mechanism 30 provided in the slide rail device M, which will be described later, even if the seat position is lowered to the rear side while the operation state of the passenger lever 6 is maintained. Due to the function, the seat back 2 can be lowered only to the boarding / alighting support position in the vicinity of the rearmost where the B-pillar BP of the vehicle substantially overlaps the position in the front-rear direction (circled number 2).

  Specifically, each of the slide rails 10 described above is slide-locked at that position even when the operation state of the above-described entry / exit lever 6 is maintained by lowering the seat position to the above-described entry / exit support position near the rearmost. It is possible to switch to the set state. Therefore, the seat position is pulled down to the rear side while the passenger lever 6 is operated, and the movement is stopped, so that the seat position reaches the passenger support position in the vicinity of the rearmost, and a wide passenger space is obtained. It is possible to make the user recognize that the state has been secured.

  Further, the above-described slide rails 10 are again slid and locked when the user lifts the passenger lever 6 again from the state where the seat position is lowered to the passenger support position near the rearmost as described above. The state that has been released is released all at once (circled number 3). Each slide rail 10 moves the seat position to the front side while maintaining the operation state of the above-described entry / exit lever 6, and thereby the operation of the operation mechanism 30 provided in the slide rail device M, which will be described later, When the seat position reaches the position before it is lowered to the rear side, that is, the position at which the passenger lever 6 is first operated and lowered to the rear side, the slides are returned to the locked state. Yes (circled number 4).

  That is, when the seat position is changed by operating the passenger lever 6, the slide rail device M can store the position before the change of the seat position when the passenger lever 6 is operated. By changing the seat position and returning it to that position, when the seat position reaches the storage position, the slide position is switched to the locked position, and the seat position before the change is changed. It can be easily returned to. Accordingly, after a person sits on the seat 1 at the above-mentioned boarding / exiting support position near the rearmost, the person operates the boarding lever 6 again to move the seat position toward the front side, so that the boarding / exiting of the seat position is performed. By operating the lever 6, it is possible to return to the storage position before being lowered to the rear side at once, and to return to the state locked at that position.

  In addition, as shown in FIG. 3, each slide rail 10 described above is operated at the midway position between the storage position before change described above with reference to FIG. 1 and the boarding support position near the rearmost as shown in FIG. In such a case, it is possible to switch to a slide-locked state at each of the unlocked positions. Then, each slide rail 10 is operated again at each of the above-mentioned slide-locked positions, so that the seat position is again set between the storage position before the change described above with reference to FIG. It can be switched to a state where it can be freely adjusted. Then, each slide rail 10 is slide-locked at the same position by moving the seat position to the pre-change storage position described above with reference to FIG. 1 while maintaining the above-described operation state of the passenger lever 6. It is supposed to be returned to.

<< Specific structure of slide rail 10 >>
Hereinafter, specific configurations of each of the slide rails 10, the memory mechanism 20, and the operation mechanism 30 constituting the above-described slide rail device M 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 is assembled with a lower rail 11 attached on the floor F, an upper rail 12 attached to the lower portion of the seat cushion 3 and assembled with the lower rail 11 so as to be slidable in the front-rear direction. And a lock spring 13 that locks the slide between the rails 11 and 12. Since the basic structure of each slide rail 10 is substantially the same configuration on the left and right, the detailed configuration of the slide rail 10 is a slide disposed on the inner side (left side) in the vehicle width direction shown in FIG. A description will be given by using the configuration of the rail 10 as a representative. Here, the lock spring 13 described above corresponds to the “lock mechanism” of the present invention.

  As shown in FIG. 5, the lower rail 11 described above is formed by bending a sheet of steel or the like that is elongated in the longitudinal 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 integrally fastened and fixed on the floor F by fastening structures such as bolts (not shown). The lower rail 11 described above is formed in a rail shape whose cross-sectional shape is substantially uniform in the front-rear direction.

  Specifically, the lower rail 11 described above has a bottom surface portion 11A set on the floor F with the surface facing upward, and an inverted U-shape extending inward from the left and right side portions of the bottom surface portion 11A and inwardly facing each other. It is formed in the cross-sectional shape which has a left-right paired lower side fin part 11B made into the shape bent and returned in the shape. The above-described lower rail 11 is set in a state where the front and rear end portions of the bottom surface portion 11A are in surface contact with the floor F from above, and is fastened with bolts (not shown) inserted from above. The structure is integrally fastened on the floor F.

  In the left and right lower fin portions 11B of the lower rail 11 described above, respective lock portions 13C corresponding to lock springs 13 to be described later are respectively provided from the lower side at the respective edge portions bent back in an inverted U shape. A lock groove 11C that can be inserted and 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 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 elongated in the longitudinal direction of the vehicle into a substantially Ω-shaped shape in the lateral 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 cross-sectional shape that is attached to the lower part of the above-described seat cushion 3 with the surface facing upward, and the left and right sides of the top board 12A. It is formed in a cross-sectional shape having a pair of left and right upper fin portions 12B that extend downward and bend back and extend in a U shape toward the opposite sides. The top plate portion 12A of the upper rail 12 described above is formed with a through hole 12Aa for allowing components of the memory mechanism 20 and the operation mechanism 30 described later to pass in the height direction.

  The above-described upper rail 12 is shaped like the above-described lower rail 11, and the respective edge shapes of the left and right upper-side fin portions 12B bent back to 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 part bent back in 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. The sheet is assembled in a state of being prevented from coming off in the sheet width direction. Specifically, the above-described upper rail 12 is arranged 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 above-described lower rail 11. Each is held in a state of being assembled so that it can slide smoothly in the front-rear direction while being restrained.

  The lock spring 13 is formed by bending a single wire such as steel into a substantially U shape in a plan view extending in the longitudinal direction. The lock spring 13 described above has a rear end portion 13B formed as a folded portion that is folded back to the front side in a substantially U shape in plan view. Then, the lock spring 13 was folded in a wavy shape toward the outer side in the sheet width direction at the middle portion of each line portion extending from the folded back rear end portion 13B to the front side in a pair of left and right sides. The lock portion 13C is formed. Further, the front end portion 13A of each line portion of the lock spring 13 described above is formed into a shape that is bent so as to protrude outward in the sheet width direction.

  In the lock spring 13 described above, each portion of the front end portion 13A of each line portion that is bent outward in the seat width direction is formed on the standing wall portion of the front region of each upper fin portion 12B of the upper rail 12 described above. Each of the formed through holes 12Ba is inserted into the through holes 12Ba while being elastically squeezed from the inside, and is set as a state where the pins are rotatably connected. Further, the above-described lock spring 13 is formed by turning up the folded portions on both corners of the above-described rear end portion 13B inwardly from the standing wall portion of the rear region of each upper-side fin portion 12B of the above-described upper rail 12. The hooks 12Bb are hooked from the upper side and are set so as to be rotatably pin-coupled.

  Further, in the lock spring 13 described above, the above-described left and right lock portions 13C penetrate in the seat width direction formed in the standing wall portion of the center region in the front-rear direction of the left and right upper fin portions 12B of the above-described upper rail 12, respectively. Each of the through-grooves 12C is assembled in a state of being passed through while being elastically squeezed from the inside. Each of the through grooves 12C described above has a shape having a comb-like slit through which each of the lock portions 13C of the lock spring 13 passed therethrough can be individually elongated toward the upper side.

  As described above, the lock spring 13 is in a free state by having a front end portion 13A and a rear end portion 13B that are pin-connected to the upper rail 12 so as to be rotatable in the height direction. Then, due to the restoring action by its own spring urging force, each lock portion 13C described above is passed from the lower side and the rear side in a state where the lock portion 13C is passed from the lower side into each slit elongated in a comb shape in each through groove 12C of the upper rail 12. It is held in a supported state.

  In the lock spring 13 described above, the sliding position of the upper rail 12 with respect to the lower rail 11 in the front-rear direction is formed in each slit of the through groove 12C formed in the upper fin portion 12B on each side and in the lower fin portion 11B on each side. The respective lock grooves 11C are aligned in the vehicle width direction so that they pass through the slits of the through grooves 12C and the lock grooves 11C from below by a spring biasing force. It has become.

  As a result, the slide in the front-rear direction with respect to the lower rail 11 of the upper rail 12 is locked and held via the lock portions 13C of the lock spring 13 described above. The state where the slide of the upper rail 12 with respect to the lower rail 11 is locked is shown in FIGS. 13, 14, 18, 19, 22, and 25. It is represented as a state of entering into each lock groove 11C from below.

  The lock spring 13 described above is pushed down by the lock portion 13C when the loop handle 5 (see FIGS. 14 to 18) described above is operated or the passenger lever 6 (FIGS. 19 to 25) is operated. It is bent and removed from the lock groove 11 </ b> C of the lower rail 11 downward. By the above operation, the slide lock state of the upper rail 12 via the lock spring 13 is released, and the upper rail 12 is slid in the front-rear direction with respect to the lower rail 11. Thereafter, when the operation of the operated loop handle 5 or the entry / exit lever 6 is released, the lock spring 13 enters the lock groove 11C of the lower rail 11 again by the spring biasing force and locks the slide as shown in FIG. It will be returned to the state.

  At that time, when the slide position of the upper rail 12 is in a state where the lock groove 11C of the lower rail 11 is not at the position where the lock portion 13C of the lock spring 13 is to be restored, that is, the shelf surface between the lock grooves 11C is located. The lock portion 13C is returned only to the position where it comes into contact with the shelf surface, and does not enter the slide lock state. However, by shifting the slide position of the upper rail 12 from the slide position to either the front or rear side, the lock portion 13C is aligned with the lock groove 11C of the lower rail 11 and enters the lock groove 11C (slide lock (Status).

  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 (to 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-described configuration, the slide rail 10 on the inner side in the vehicle width direction is configured to perform the unlocking operation of the lock spring 13 through the operation mechanism 30 described above by operating the above-described entry / exit lever 6. .

  On the other hand, the slide rail 10 disposed on the outer side (right side) in the vehicle width direction can receive the above-described operation force of the passenger lever 6 on the upper rail 12 via the rod 35 of the operation mechanism 30 described later. A release arm (not shown) assembled in a state is provided. With the above configuration, the unlocking operation of the lock spring 13 is also performed in synchronization with the slide rail 10 on the outer side in the vehicle width direction by operating the above-described entry / exit lever 6 via the above-described release arm (not shown). It is like that.

  Further, a tension spring 14 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. With the above configuration, the slide rails 10 are always subjected to a force in a direction in which the upper rail 12 is moved forward relative to the lower rail 11 by the spring biasing force exerted by the tension spring 14 described above. Yes. With the above configuration, the slide rails 10 can be slid forward with respect to the lower rail 11 with a light force by releasing the slide-locked state. .

  Further, the slide rail 10 disposed on the inner side (left side) in the vehicle width direction has a seat position when the slide rail 10 is slid to the rear side in the unlocked state by the operation of the alighting lever 6 described above. A stopper bracket 15 that can be locked at the boarding / alighting support position in the vicinity of the rearmost described above with reference to FIG. 1 is attached. As shown in FIG. 5, the stopper bracket 15 described above is formed of a plate material such as steel bent into a substantially L-shape, and the bottom plate portion and the upright plate portion are connected to the bottom surface portion 11 </ b> A of the lower rail 11. It is in a state of being externally attached to the lower rail 11 so as to be in contact with the outer side surface portion of the left lower fin portion 11B.

  The above-described stopper bracket 15 is configured such that the above-described slide rail 10 on the inner side in the vehicle width direction is slid to the rear side after the slide lock state is released, so A locking surface portion 15A formed in a hook-like shape projecting outward is applied from a rear side to a trigger link 22A of a memory mechanism 20 described later, and the trigger link 22A is pushed forward to get on and off. The release state of the slide lock of the slide rail 10 due to the operation of the lever 6 is canceled, and the slide rail 10 is slide-locked at that position.

<< Specific Configuration of Memory Mechanism 20 >>
Next, a specific configuration of the memory mechanism 20 will be described. As shown in FIGS. 5 to 7, the memory mechanism 20 is roughly constituted by a memory body 21 assembled on the slide rail 10 on the lower rail 11 side and a detection operation body 22 assembled on the upper rail 12 side. Has been.

  As shown in FIGS. 19 to 22, the former memory body 21 remains at a fixed position on the lower rail 11 before the seat position is changed when the seat position is lowered to the rear side by the above-described operation of the passenger lever 6. It functions as a member for storing the position. The latter detection operation body 22 lowers the seat position to the rear side by the above-described operation of the getting-on / off lever 6 and then, again, as shown in FIGS. When returning to the remaining storage position, it is pressed against the memory body 21 from the rear side and rotated to operate so as to lock the seat position at that position.

<< Specific Configuration of Memory Body 21 >>
Next, a specific configuration of the memory body 21 described above will be described with reference to FIGS. The memory body 21 includes a memory rail 21A extending in a longitudinal direction in the front-rear direction, a memory piece 21B assembled so as to be slidable in the front-rear direction with respect to the memory rail 21A, and the memory piece 21B being always associated with the memory rail 21A. And a plate spring 21C that urges the spring upward. Here, the memory piece 21B corresponds to the “memory member” of the present invention.

<< Configuration of Memory Rail 21A >>
As shown in FIGS. 5 to 7 and 10, the above-described memory rail 21 </ b> A is formed by bending a sheet of steel or the like that is elongated in the front-rear direction into a substantially U-shape in the lateral direction. In addition, each of the bent upper edge portions is bent into a hook shape on the inward side of each other. With the above configuration, the memory rail 21A has a configuration in which a slit-shaped guide hole 21Aa that opens in a straight line shape in the front-rear direction is formed at a central portion of the top plate portion in the sheet width direction. The memory rail 21 </ b> A described above is provided such that each end portion on the front and rear sides thereof is screwed onto the bottom surface portion 11 </ b> A of the lower rail 11 and is integrally fixed.

  As shown in FIG. 10, the memory rail 21 </ b> A described above is configured such that the memory piece 21 </ b> B is inserted into the rail from one of the front and rear opening ends so that the raised portion 21 </ b> Bb of the memory piece 21 </ b> B is located above the guide hole 21 </ b> Aa. The memory piece 21B is assembled so as to be enclosed from both the upper and lower sides and the left and right sides. With the above assembly, the memory rail 21A can slide the memory piece 21B in the front-rear direction along the guide hole 21Aa in a state where the raised portion 21Bb of the memory piece 21B is guided from both the left and right sides by the guide hole 21Aa. In this way, it is supported as a guided state.

  A plurality of engagement holes 21Ab penetrating in a substantially rectangular shape in the height direction are provided at equal intervals in the front-rear direction at the left and right edges of the top plate portion where the guide holes 21Aa of the memory rail 21A are formed. It is formed in a side-by-side form. These engagement holes 21Ab are formed from the lower sides of the respective engagement claws 21Ba2 formed so as to protrude upward on the left and right side portions on the front end side of the memory piece 21B assembled in the memory rail 21A. By fitting, the slide of the memory piece 21B in the front-rear direction with respect to the memory rail 21A is held in a locked state. The pitch at which the slide in the front-rear direction with respect to the memory rail 21A of the memory piece 21B is locked is set to be the same as the pitch at which the slide in the front-rear direction of the slide rail 10 is locked.

<< Configuration of Memory Piece 21B >>
The memory piece 21B includes a seat surface portion 21Ba having a substantially flat plate shape that is long in the front-rear direction, a raised portion 21Bb that protrudes from the center of the rear portion of the seat surface portion 21Ba and extends to the rear side, A posture holding portion 21Bc that holds the posture at the time of bottoming formed by the bottom shape of the seat surface portion 21Ba and the raised portion 21Bb. The above-described seat surface portion 21Ba has a stepped portion located on the front side of the raised portion 21Bb so that the leg piece 38D of the follow-up member 38 of the operation mechanism 30 described later shown in FIGS. It is formed as a pushing portion 21Ba1 pushed from above.

  Further, as shown in FIG. 10, the left and right side portions on the front end side of the seat surface portion 21Ba described above are formed with standing plate-like engagement claws 21Ba2 that are bent upward and project. Yes. These engaging claws 21Ba2 are fitted from the lower side to the respective engaging holes 21Ab formed at positions separated from the guide holes 21Aa of the memory rail 21A on the left and right sides, thereby the memory of the memory piece 21B. It functions as a lock portion that locks the slide in the front-rear direction with respect to the rail 21A.

  The raised portion 21Bb is configured to have a shape extending in an arm shape toward the rear side at a position protruding above the seat surface portion 21Ba. As shown in FIGS. 6 to 7 and 13, the above-described raised portion 21 </ b> Bb is provided with a leg piece 38 </ b> D of a rotation member 38 of the operation mechanism 30 described later on the front surface portion and described later on the rear surface portion. The leg link 22Ab of the trigger link 22A of the memory mechanism 20 is provided as an attached state. With the above configuration, the raised portion 21Bb is held in a state of being sandwiched from the front and rear sides by the leg piece 38D of the follower member 38 and the leg side link 22Ab of the trigger link 22A in the initial state shown in FIG. It has become so. In the above-described raised portion 21Bb, the upper surface region of the portion extending beyond the seat surface portion 21Ba rearward is formed as a curved surface 21Bb1 curved in a concave curved shape on the lower side.

  As shown in FIG. 13, the posture holding portion 21Bc has a seat width that protrudes from the fulcrum 21Bc1 formed from the above-described corner surface of the raised portion 21Bb and from the bottom surface of the pushing portion 21Ba1 of the seat surface portion 21Ba. And a fulcrum 21Bc2 extending linearly in the direction. As shown in FIG. 32, the above-described posture holding portion 21Bc has the above-described both fulcrum points when the above-described ride-up portion 21Bb is pushed downward by the follower member 38 of the operation mechanism 30 described later. By attaching 21Bc1 and 21Bc2 to the bottom surface of the memory rail 21A, the posture of the memory piece 21B is maintained in a rearward inclined posture in which each engaging claw 21Ba2 is not lifted off from each engaging hole 21Ab of the memory rail 21A. It functions as a holding part for doing.

<< Configuration of Leaf Spring 21C >>
As shown in FIGS. 10 and 13, the leaf spring 21 </ b> C is bent into a shape having a substantially truncated mountain shape when viewed from the side, and the top plate portion is the pushing portion 21 </ b> Ba <b> 1 of the seat surface portion 21 </ b> Ba and the raised portion 21 </ b> Bb. It is set as the structure assembled | attached to the state applied integrally to the bottom face area | region straddling a part of. When the memory piece 21B described above is assembled in the memory rail 21A, the leaf spring 21C extends from the seat surface portion 21Ba to the front diagonal 21Ca and the rear diagonal lower side. The legs 21Cb are set so as to be elastically pressed onto the bottom surface of the memory rail 21A. With the configuration described above, the leaf spring 21C always applies a force that elastically pushes up the seat surface portion 21Ba upward by the spring biasing force, so that each engagement claw 21Ba2 of the memory piece 21B is engaged with each engagement of the memory rail 21A. The joint hole 21Ab is elastically fitted and held in that state.

<< Operation of the memory body 21 >>
As shown in FIG. 13, in the memory body 21 described above, the engaging claws 21Ba2 of the memory piece 21B described above are in memory in the initial state in which the above-described sheet position is placed at the storage position before the change of the memory piece 21B. As a state of being fitted in each engagement hole 21Ab of the rail 21A, the position of the memory piece 21B in the front-rear direction is held in a fixed state. 14 to 18, when the seat position is adjusted by operating the loop handle 5 from the initial state described above, the memory piece 21B is engaged with the memory rail 21A. The moving operation is carried out in such a manner that it is removed from the combined state and is pulled in the moving direction of the seat position.

  Specifically, the memory body 21 described above is operated by the memory piece 21B described later by pulling up the loop handle 5 described above from the initial state shown in FIG. 14 to the shape shown in FIGS. The rotating member 38 of the mechanism 30 is pushed downward against the spring biasing force of the leaf spring 21C. Thereby, each engagement claw 21Ba2 of the memory piece 21B is removed downward from each engagement hole 21Ab of the memory rail 21A, and the memory piece 21B can move in the front-rear direction with respect to the memory rail 21A. Is switched to.

  Accordingly, as shown in FIG. 17, the seat position is lowered to the rear side while maintaining the operation state of the loop handle 5 from the released state, so that the rotating member is moved to the raised portion 21Bb of the memory piece 21B. A pressing force from the front side is applied from 38, and the memory piece 21B is pushed to a position corresponding to the movement position of the sheet position. Further, when the seat position is moved to the front side while maintaining the operation state of the loop handle 5 described above, the above-described memory piece 21B is pressed against the above-described raised portion 21Bb from the rear side. In response to a pressing force from the rear side from the trigger link 22A, the trigger link 22A is pushed to a position corresponding to the movement position of the seat position.

  Then, as shown in FIG. 18, the memory body 21 described above is released from the above-described pushing state of the memory piece 21 </ b> B by the rotating member 38 when the operation of the loop handle 5 is returned at the above-described movement position. Thus, the memory piece 21B is brought into an engaged state in which each engaging claw 21Ba2 is fitted into each corresponding engaging hole 21Ab of the memory rail 21A at the moving position by the spring biasing force of the plate spring 21C described above. By the above engagement, the position of the memory piece 21B in the front-rear direction with respect to the memory rail 21A is returned to the fixed state.

  On the other hand, as shown in FIGS. 19 to 25, when the seat position is adjusted by operating the passenger lever 6 from the initial state as described above, the memory piece 21B is connected to the memory rail 21A. Without being released from the engaged state, the seat position is left at a fixed position so as to escape the movement of the seat position. Specifically, in the memory body 21 described above, the above-described take-up lever 6 is operated from the initial state shown in FIG. 19 to the shape shown in FIG. The memory piece 21B is lifted to a position higher than the raised portion 21Bb by being operated so as to be pulled up rather than being pushed into the top.

  Therefore, as shown in FIG. 21, the memory piece 21B follows the movement of the seat position even if the seat position is lowered to the rear side while maintaining the operation state of the passenger lever 6 as shown in FIG. Left in place. Therefore, as shown in FIG. 22, in the memory body 21 described above, the memory piece 21B remains in the position before the change of the seat position even when the operation of the passenger lever 6 is returned at the above-described movement position of the seat position. It is held as a state.

  As shown in FIG. 23, the memory body 21 described above has the memory piece 21 </ b> B in the position before the change of the seat position described above even when the passenger lever 6 is operated again at the position where the seat position is changed to the rear side. Is retained as a state left behind. Then, as shown in FIG. 24, the above-described memory body 21 moves up the memory piece 21B by returning the seat position to the front side while maintaining the operation state of the passenger lever 6 as shown in FIG. A trigger link 22A of a detection operation body 22 (to be described later) is pressed against the part 21Bb from the rear side, and the trigger link 22A is operated so as to be turned around in accordance with the movement returned to the front side of the seat position.

  As a result of the above operation, as shown in FIG. 25, the memory member 21 moves the memory member 21 </ b> B through the movement that cancels the operation state of the passenger lever 6 through the operation of the detection operation body 22 described above. Is returned to the same state as the initial state that is dropped into the front portion of the raised portion 21Bb at a position over the raised portion 21Bb.

  On the other hand, in the memory body 21 described above, the loop handle 5 is operated as shown in FIG. 30 from the state where the seat position is moved backward leaving the memory piece 21B described above with reference to FIG. When the seat position is returned to the front side in the operation state, as shown in FIG. 31, the above-mentioned turning member 38 which is in the operation state pushed down by the operation of the loop handle 5 becomes the memory piece. The memory piece 21B is pressed against the raised portion 21Bb of the 21B from the rear side, and the memory piece 21B is pushed and tilted against the spring biasing force of the leaf spring 21C.

  Due to the backward tilt, the memory piece 21B is in a state of accepting the forward movement of the rotation member 38 in such a manner that the rotation member 38 rides on the ride-up portion 21Bb. The memory piece 21B is pushed down by the rear end of the raised portion 21Bb due to the riding member 38 riding on the raised portion 21Bb with the advancement of the forward movement of the seat position. The rear fulcrum 21Bc1 that forms the bottom posture holding portion 21Bc is first inclined so as to bottom on the bottom surface of the memory rail 21A.

  As shown in FIG. 32, the memory piece 21B described above has a maximum center side as shown in FIG. 32 due to the progress of the advancement movement on the ride-up part 21Bb of the turning member 38 accompanying the advance movement of the seat position. The fulcrum 21Bc2 is also sunk to the position where it bottoms on the bottom surface of the memory rail 21A. However, even if the memory piece 21B described above is depressed as described above, each of the engaging claws 21Ba2 on the front end side of the memory support 21Bc is attached to the memory rail 21A by the bottom of the fulcrums 21Bc1 and 21Bc2 of the attitude holding portion 21Bc described above. The posture state in which each engagement hole 21Ab is inserted can be maintained.

  As shown in FIG. 33, the above-mentioned memory body 21 is moved forward by the turning member 38 due to the backward tilting of the memory piece 21B described above, so that the turning member 38 brings the raised portion 21Bb of the memory piece 21B to the front side. The memory piece 21B is lifted upward by the spring urging force of the leaf spring 21C by moving to the position where it has been climbed over, and the accompanying member 38 is dropped into the front portion of the ride-up part 21Bb by its relative movement. It is supposed to return to the state.

  Specifically, the memory piece 21B described above is in an operation state in which the entire memory piece 21B is pushed downward in a straight posture while returning to a backward tilted posture by the turning member 38 that is in a push-down operation state in accordance with the return movement described above. Thus, the same state as shown in FIG. 15 is returned to the state operated by the follower member 38 so as to be disengaged from the engaged state with the memory rail 21A.

<< Concerning Specific Configuration of Detection Actuator 22 >>
Next, a specific configuration of the detection operation body 22 will be described. As shown in FIGS. 6 to 9 and 13, the detection operation body 22 is provided by being assembled to a base bracket 31 of an operation mechanism 30 (described later) assembled on the upper rail 12 of the slide rail 10 described above. Specifically, the detection operation body 22 described above is connected to the trigger link 22A rotatably connected to the rear side region of the base bracket 31 described above and rotatably connected to the upper side region of the base bracket 31. The cancel link 22B and the operation link 22C that operates by transmitting the rotation of the trigger link 22A to the cancel link 22B are configured.

<< Configuration of Trigger Link 22A >>
The trigger link 22A described above has a link shape having a shape elongated in the height direction, and an intermediate point in the height direction is an axis that orients the axis in the seat width direction with respect to the base bracket 31 described above. The pins 22Aa are provided in a state of being pin-coupled so as to be rotatable. More specifically, the trigger link 22A described above extends in a shape that curves from the connecting portion with the shaft pin 22Aa to the upper front side from the connecting portion with the shaft pin 22Aa. The head-side link 22Ac that comes out is composed of two links.

  The above-described leg side link 22Ab is normally rotated counterclockwise about the shaft pin 22Aa toward the paper surface of FIG. 13 by the biasing force of a spring (not shown) hooked between the above-described head side link 22Ac. It is in a state of being urged to rotate. With the above urging, the leg-side link 22Ab is normally in a state in which the rotational posture with respect to the head-side link 22Ac is locked at a rotation position where the leg-side link 22Ac is abutted against the locking piece 22Ac1 formed to protrude from the head-side link 22Ac. It is supposed to be held as.

  The head side link 22Ac is normally urged to rotate clockwise about the shaft pin 22Aa by the urging force of a spring (not shown) hooked between the head side link 22Ac and the base bracket 31 described above. It is supposed to be in a state. Due to the urging, the head side link 22Ac is normally integrated with the head side link 22Ac in the rotational direction so that the lower end portion of the leg side link 22Ab described above is the raised portion 21Bb of the memory piece 21B described above. The rotation posture with respect to the base bracket 31 is held in a locked state at a rotational position where the base bracket 31 is pressed and locked from the rear side.

  The trigger link 22 </ b> A having the above-described configuration has a long hole in which a shaft pin 22 </ b> Ca that rotatably connects an upper end of the head-side link 22 </ b> Ac and a rear end of an operation link 22 </ b> C described later extends in an arc shape formed in the base bracket 31. By being configured to pass through 31C, the above-described shaft pin 22Ca can be rotated with respect to the base bracket 31 within a range in which the shaft pin 22Ca can pass through the elongated hole 31C. The long hole 31C described above is formed in a curved shape in an arc shape drawn around the shaft pin 22Aa serving as the rotation center of the trigger link 22A described above.

<< Configuration of Cancel Link 22B >>
The cancel link 22B is provided in a state where the upper end of the cancel link 22B is rotatably connected by a shaft pin 22Ba whose axis is directed in the seat width direction in the upper region of the base bracket 31 on the front side of the trigger link 22A. Yes. The cancel link 22B described above is pin-connected so that the kick cam 22Bb can be further rotated by a shaft pin 22Bb1 whose shaft is oriented in the seat width direction at a location extending from the connection location with the shaft pin 22Ba to the front lower side. It is set as the structure.

  The kick cam 22Bb described above is normally rotated counterclockwise around the shaft pin 22Bb1 toward the paper surface of FIG. 13 by the biasing force of a spring (not shown) hooked between the cancel link 22B described above. It is supposed to be in a state of power. By the above urging, the kick cam 22Bb is normally rotated such that the locking piece 22Bb2 formed to protrude from the outer periphery of the kick cam 22Bb to the locking link 22B protrudes from the cancel link 22B. At the position, the rotation posture with respect to the cancel link 22B is held in a locked state.

  The kick cam 22Bb described above has a kick protrusion piece 22Bb3 that protrudes so as to extend the shape further from the cancel link 22B to the front lower side in a state where the rotational posture with respect to the cancel link 22B is locked. It is said that. As shown in FIG. 21, when the cancel link 22B described above is rotated counterclockwise around the shaft pin 22Ba, the kick cam 22Bb is engaged with the operation mechanism 30 described later on the movement trajectory. When the kicked pin 33C of the detachment cam 33 is positioned, the cancel link 22B rotates in the clockwise direction in the figure with respect to the cancel link 22B around the shaft pin 22Bb1 so as to avoid interference with the kicked pin 33C. It is designed to function so that it can escape the rotational movement.

  However, as shown in FIG. 24, when the kick cam 22Bb is rotated so that the cancel link 22B is rotated back from the position where the cancel link 22B is rotated about the shaft pin 22Ba in the clockwise direction shown in the figure. The kicked pin 33C of the engagement / disengagement cam 33 of the operation mechanism 30 (to be described later) located on the movement locus is pushed and kicked by integral rotation with the cancel link 22B, and the engagement / disengagement cam 33 is engaged with the operation cam 34. It functions to remove from the combined state.

  The cancel link 22B having the above-described configuration has a long hole 31D in which a shaft pin 22Cb that rotatably connects an intermediate portion in the link length direction and a front end of an operation link 22C described later extends in an arc shape formed in the base bracket 31. By being configured to be passed through, the shaft pin 22Cb described above can be rotated with respect to the base bracket 31 within a range in which the shaft pin 22Cb can pass through the long hole 31D. The long hole 31D described above is formed in a curved shape in the shape of an arc drawn at the center of the shaft pin 22Ba serving as the rotation center of the cancel link 22B described above.

<< Configuration of Operation Link 22C >>
As shown in FIG. 13, the operation link 22C has a link shape that is long in the front-rear direction. The operation link 22C is in a state in which the rear end thereof is rotatably connected to a shaft pin 22Ca whose axis is oriented in the seat width direction with respect to the upper end of the head side link 22Ac of the trigger link 22A. Further, the operation link 22C is in a state where the front end of the operation link 22C is rotatably connected by a shaft pin 22Cb whose axis is directed in the sheet width direction with respect to the intermediate portion in the link length direction of the cancel link 22B.

  With the above configuration, the operation link 22C connects the trigger link 22A and the cancel link 22B described above in a state where power can be transmitted, and when the rotation posture of the trigger link 22A is locked in the initial state, The rotation posture is also locked in the initial state. Then, as shown in FIG. 21, the operation link 22C rotates away from the contact state with the memory piece 21B by the backward movement of the seat position, and rotates in the clockwise direction shown in the figure around the shaft pin 22Aa. By moving, the amount of rotational movement is transmitted to the cancel link 22B, and the cancel link 22B is rotated in the counterclockwise direction around the shaft pin 22Ba.

  Further, as shown in FIG. 24, the operation link 22C is pressed against the memory piece 21B again from the rear side by the forward movement of the seat position from the retracted position of the seat position, so that the shaft pin 22Aa is centered. By rotating in the counterclockwise direction in the figure, the amount of rotational movement is transmitted to the cancel link 22B, and the cancel link 22B is rotated in the clockwise direction in the figure about the shaft pin 22Ba.

<< About the operation of the detection operation body 22 >>
As shown in FIG. 13, in the initial state in which the above-described seat position is placed at the pre-change storage position of the memory piece 21B, the detection operation body 22 described above is configured so that the leg-side link 22Ab of the trigger link 22A described above is in the above-described state. The state in which the head-side link 22Ac centered on the shaft pin 22Aa and the leg-side link 22Ab is pressed against the rear surface portion of the raised portion 21Bb of the memory piece 21B by a spring biasing force (not shown). The integral clockwise movement in the illustrated direction is held in a stopped state at an intermediate position.

  As shown in FIGS. 14 to 18, the detection operation body 22 described above is not operated at all even if the loop handle 5 is operated, and the state changes before and after the operation of the loop handle 5. There is no such thing. However, as shown in FIGS. 19 to 25, the detection operation body 22 described above moves the seat position leaving the memory piece 21 </ b> B when the seat position is adjusted by operating the passenger lever 6 from the initial state described above. Along with this, it is moved so as to detect the state separated from the memory piece 21B or the state pressed against the memory piece 21B.

  Specifically, the above-described detection operation body 22 is not particularly operated even when the above-described entry / exit lever 6 is operated in the form shown in FIG. 20 from the initial state shown in FIG. However, as shown in FIG. 21, the detection operation body 22 described above moves the seat position to the rear side while leaving the memory piece 21 </ b> B by the operation of the above-described entry / exit lever 6, thereby causing the leg side of the trigger link 22 </ b> A described above. The link 22Ab is removed from a contact state with the rear surface portion of the raised portion 21Bb of the memory piece 21B, and the head side link 22Ac and the leg side link 22Ab are integrated by a spring biasing force (not shown). The leg-side link 22Ab is rotated in the clockwise direction as shown in the figure by kicking it forward from the shaft pin 22Aa.

  The above-described rotational movement of the trigger link 22A by the spring biasing force in the clockwise direction around the shaft pin 22Aa is the long hole 31C through which the shaft pin 22Ca connected to the upper end of the head-side link 22Ac is passed. It is locked by hitting the rear end. Then, due to the rotational movement of the trigger link 22A, the cancel link 22B is rotationally operated in a counterclockwise direction around the shaft pin 22Ba via the operation link 22C connected to the trigger link 22A.

  At that time, the cancel link 22B is in a state where the cancel link 22B protrudes to a position on the movement locus in accordance with the operation of the above-described entry / exit lever 6 with respect to the kicked pin 33C of the engagement / disengagement cam 33 of the operation mechanism 30 described later. The kick cam 22Bb of the kick cam 22Bb is rotated so as to be pressed from above. However, when the kick link 22Bb3 of the kick cam 22Bb is pressed against the kick pin 33C of the engagement / disengagement cam 33 from the rotation direction, the cancel link 22B described above has the kick cam 22Bb against the cancel link 22B and the shaft pin 22Bb1. It rotates in the clockwise direction in the figure against a spring urging force (not shown) around the center, and can be rotated to a position where it can pass through the kicked pin 33C while escaping the hit with the kicked pin 33C. .

  Then, when the cancel link 22B described above is rotated to a position where it passes through the kicked pin 33C described above, the above-described kick cam 22Bb is applied to the locking protrusion 22Bc of the cancel link 22B by a spring biasing force (not shown). It will be returned to the posture state. As shown in FIG. 22, the detection operation body 22 described above is not particularly operated even if the operation of the passenger lever 6 is returned after the seat position described above is moved backward. Further, as shown in FIG. 23, the detection operation body 22 described above is not particularly operated even when the passenger lever 6 is operated again at the position where the seat position is changed to the rear side.

  However, as shown in FIG. 24, the detection operation body 22 described above is configured so that the leg-side link 22Ab of the trigger link 22A described above is returned when the seat position is returned to the front side while the operation state of the entry / exit lever 6 is maintained. The memory piece 21B is operated to be pushed counterclockwise around the shaft pin 22Aa as it is pressed against the raised portion 21Bb from the rear side and returned to the front side of the seat position. .

  As a result of the above operation, the detection operation body 22 transmits the rotation of the trigger link 22A described above to the cancel link 22B through the operation link 22C, and the cancel link 22B is pushed in the clockwise direction in the figure about the shaft pin 22Ba. Rotate. By this rotation, the kick link piece 22Bb3 of the kick cam 22Bb is pressed from below on the cancel link 22B against the kicked pin 33C of the above-described engagement / disengagement cam 33 protruding to the position on the movement locus.

  At that time, even if the above-described kick cam 22Bb is pressed against the kicked pin 33C from below, the cancel link 22B is rotated counterclockwise in the figure about the shaft pin 22Bb1 with respect to the cancel link 22B. The state is integrated with the cancel link 22B without rotating in the direction. Accordingly, as the cancel link 22B moves, the kick protrusion 22Bb3 of the kick cam 22Bb pushes and kicks the kick pin 33C so that the engagement / disengagement cam 33 is disengaged from the operation cam 34 described later. It is designed to operate.

  By the above operation, the detection operation body 22 cancels the release state of the slide lock of the slide rail 10 by the operation mechanism 30 described later, which has been maintained by the operation state of the above-described entry / exit lever 6, and as shown in FIG. The lock spring 13 is locked and the slide rail 10 is returned to the slide-locked state. By the above operation, the detection operation body 22 is returned to the same state as the initial state in which the leg side link 22Ab of the trigger link 22A described above is pressed against the raised portion 21Bb of the memory piece 21B from the rear side.

  The detection operation body 22 described above operates to return the lock spring 13 to the locked state by pressing the trigger link 22A against the raised portion 21Bb of the memory piece 21B from the rear side as described above. As described above, the locking surface portion where the head side link 22Ac of the trigger link 22A described above with reference to FIG. 24 projects into the hook shape of the stopper bracket 15 described above with reference to FIG. It is applied to 15A from the front side and operates to return the lock spring 13 to the lock state in the same manner.

  The detection operation body 22 configured as described above further moves from the state where the seat position is placed at the storage position before the change of the memory piece 21B shown in FIG. However, when it is moved to the front side as shown in FIG. 26, it is possible to release the movement without overloading the trigger link 22A pressed against the memory piece 21B from the rear side. An avoidance mechanism 22M is provided.

  Specifically, the overload avoidance mechanism 22M described above is configured so that the trigger link 22A described above is in a memory state as shown in FIG. 26 from the initial position where the memory piece 21B is pressed from the rear side (see FIG. 20). The cancel link 22B that rotates by receiving the trigger link 22A and its rotation when receiving the input of the force pushed in the counterclockwise direction around the shaft pin 22Aa by being pressed against the piece 21B from the rear side. Are configured by a mechanism that allows them to escape in the rotational direction that receives the input against a spring biasing force (not shown).

  Each escape rotation of the trigger link 22A and the cancel link 22B described above reaches the front end of the long hole 31C through which the shaft pin 22Ca connected to the upper end of the head side link 22Ac of the trigger link 22A is passed. A long hole 31D through which the shaft pin 22Cb connected to the intermediate portion in the link length direction of the cancel link 22B described above is allowed to escape from the initial position of the trigger link 22A. The rotation from the initial position of the cancel link 22B can be released until the upper end of the cancel link 22B is reached.

  By the above-described overload avoidance mechanism 22M, the detection operation body 22 is stored in a manner such that the trigger link 22A rides on the memory piece 21B while being in a forward leaning posture with the advance movement from the initial position of the seat position. It slides to the position over the piece 21B on the front side. As shown in FIG. 27, when the trigger link 22A has moved over the memory piece 21B to the front side, the rotation posture of the trigger link 22A is changed with respect to the memory piece 21B by a spring biasing force (not shown). The leg side link 22Ab is returned to the form of kicking out to the front side in the same state as shown in FIG.

  In addition, the detection operation body 22 described above further starts from the position where the trigger link 22A shown in FIG. 27 crosses the memory piece 21B to the front side, and as shown in FIG. 28, the seat position moves the trigger link 22A from the memory piece 21B. Even when the rear side is moved so as to return to the rear side, a release mechanism 22N is provided that can release the movement without overloading the trigger link 22A pressed against the memory piece 21B from the front side. ing.

  Specifically, the above-described escape mechanism 22N receives an input of a force that is rotated clockwise around the shaft pin 22Aa by the above-described trigger link 22A being pressed against the memory piece 21B from the front side. At this time, the leg-side link 22Ab of the trigger link 22A is configured by a mechanism that allows the head-side link 22Ac to leave the head-side link 22Ac so that the leg-side link 22Ab can escape in the rotational direction that has received the input alone against an unillustrated spring biasing force. Yes.

  That is, the above-described trigger link 22A has the locking piece 22Ac1 of the head-side link 22Ac when the above-described leg-side link 22Ab rotates in the illustrated counterclockwise direction around the shaft pin 22Aa with respect to the head-side link 22Ac. The head-side link 22Ac rotates together with the head-side link 22Ac, but the leg-side link 22Ab is hooked between the head-side link 22Ac against rotation in the reverse direction (not shown). The head side link 22Ac can be left against the spring urging force and can be rotated.

  Therefore, by the escape mechanism 22N having the above-described configuration, the detection operation body 22 causes the leg-side link 22Ab of the trigger link 22A to move above the memory piece 21B with respect to the head-side link 22Ac as the seat position moves backward. It is ridden in a shape that bends in a middle-folded manner and rides on the memory piece 21B to the rear side. As shown in FIG. 29, when the leg-side link 22Ab of the trigger link 22A rides on the raised portion 21Bb of the memory piece 21B, the detection operation body 22 is in the memory described above. The piece 21B is pushed backward and inclined in the same manner as described above with reference to FIG. 31 against the spring biasing force of the leaf spring 21C by the action of the force pushed from above.

  Then, as shown in FIG. 29, the above-described leg-side link 22Ab of the trigger link 22A corresponds to FIG. 20 before the seat position is moved to the front side by the movement of the memory piece 21B being pushed backward. The amount of movement to return to the position, the position over the raised portion 21Bb by the counterclockwise rotation around the shaft pin 22Aa while sliding on the curved surface 21Bb1 of the raised portion 21Bb of the memory piece 21B And is returned to the same state as the initial state pressed against the raised portion 21Bb of the memory piece 21B from the rear side.

<< Concerning Specific Configuration of Operation Mechanism 30 >>
Next, a specific configuration of the operation mechanism 30 will be described. As shown in FIGS. 5 to 9 and 13, the operation mechanism 30 is a base bracket 31 serving as a base assembled on the upper rail 12 of the slide rail 10 disposed on the inner side (left side) in the vehicle width direction described above. It is assembled and installed.

  14 to 18, the operation mechanism 30 described above releases the lock spring 13 of the slide rail 10 from the locked state by operating the loop handle 5 described above, and also releases the memory piece 21B from the engaged state with respect to the memory rail 21A. The release operation mechanism 30A for switching to the state of being pulled in the sliding direction and the above-described memory piece 21B in the state of being engaged with the memory rail 21A by the operation of the above-described entry / exit lever 6 as shown in FIGS. A memory operation mechanism 30B that operates to release the lock spring 13 of the slide rail 10 from the locked state.

  Specifically, as shown in FIGS. 6 to 7, 11, and 13, the operation mechanism 30 is provided with a base bracket 31 that serves as the base described above and a pin that is rotatable on the front lower side region of the base bracket 31. The release arm 32 that is connected, the engagement / disengagement cam 33 that is rotatably connected to the intermediate portion in the length direction of the release arm 32, and the front lower portion of the base bracket 31 can rotate about the same axis as the release arm 32. An operation cam 34 connected to a pin, a rod 35 connected to the operation cam 34 so as to rotate integrally therewith, and a pin rotatably connected to a front side region of the base bracket 31 The connected lifting operation link 36, the pressure receiving member 37 pin-connected to be hung from the rear end of the lifting operation link 36, and the pressure receiving member 37 are elastically connected to each other via a spring (not shown). There is a co-rotation member 38 disposed in a state where the guide so as to only be movable in the height direction, a configuration with respect to the base bracket 31 as a state.

<< Configuration of base bracket 31 >>
As shown in FIGS. 8 to 9, the base bracket 31 described above is configured by combining a plurality of plate materials such as steel, and is bent into a substantially L-shaped shape having a bottom plate portion and a standing plate portion. The shape is different. The base bracket 31 described above has a bottom plate portion bolted onto the top plate portion 12A of the upper rail 12 described above and is integrally fixed.

<< Configuration of Release Arm 32 >>
As shown in FIGS. 8 to 9, 11, and 13, the release arm 32 has an arm shape that is elongated in the height direction, and its lower end is on the left side of the rod 35 to be described later. The end portion is rotatably connected to the base bracket 31. The shaft is passed through the operation shaft 35A, which is oriented in the seat width direction, and is axially connected to the operation shaft 35A. Yes. The release arm 32 is normally urged to rotate counterclockwise in FIG. 13 around the operation shaft 35A by the urging force of a spring (not shown) hooked between the release arm 32 and the base bracket 31 described above. It is supposed to be in a state. Due to the above urging, the release arm 32 is normally at the rotational position where it is abutted against a locking piece 31A formed in the shape of protruding in the seat width direction at the front edge of the base bracket 31. The rotation posture with respect to 31 is held in a locked state.

  At the upper end of the release arm 32 described above, the tip of a cable 32 </ b> A that transmits the operating force from the passenger lever 6 is connected. The cable 32A described above has a double cable structure in which a linear inner cable is passed through a tubular outer cable, and the front end of the outer cable is integrally hooked on the rear side region of the base bracket 31. The front end of the inner cable that is fixed and fed out from the fixed end is connected to the upper end of the release arm 32.

  As shown in FIGS. 14 to 18, the release arm 32 configured as described above is not operated even when the loop handle 5 described above is operated, and the state changes before and after the operation of the loop handle 5. There is no such thing. However, as shown in FIG. 19, the release arm 32 described above is operated via the cable 32A as shown in FIG. 20 by the operation of the passenger lever 6 connected to the upper end of the release arm 32 via the cable 32A. In response to the transmission of the operating force, it is rotated in the clockwise direction in the figure around the operating shaft 35A.

  The release arm 32 described above always receives transmission of the operation force via the cable 32A described above while the entry / exit lever 6 is operated, and as shown in FIG. It keeps being kept in the state. Then, as shown in FIG. 22, the release arm 32 is released from the above-described pulling operation state by the cable 32A when the operation of the above-described getting-on / off lever 6 is returned, and the above-described release arm 32 is released by the spring biasing force (not shown). It returns to the initial state where it abuts against the locking piece 31A.

<< Configuration of engagement / disengagement cam 33 >>
As shown in FIG. 13, the engagement / disengagement cam 33 is rotatably connected to the intermediate portion in the length direction of the release arm 32 described above by a shaft pin 33 </ b> A whose axis is directed in the sheet width direction. . The aforementioned engagement / disengagement cam 33 is normally rotated clockwise with respect to the release arm 32 about the shaft pin 33A by a spring biasing force (not shown) hooked between the release arm 32 and the release arm 32 described above. It is supposed to be in a state of power. Due to the urging, the engagement / disengagement cam 33 is normally bent into a circular arc shape of the operation cam 34 described later, with the push-projection piece 33B formed to protrude rearward and downward from the shaft pin 33A. It is held as a pressed state on the outer peripheral surface.

  As shown in FIG. 20, the engaging / disengaging cam 33 having the above-described configuration is formed by pushing the protruding arm 33B when the release arm 32 described above is rotated about the operation shaft 35A in the clockwise direction by the operation of the passenger lever 6. Is operated to rotate integrally with the release arm 32 via the shaft pin 33A while being pressed onto the outer peripheral surface of the operation cam 34. And by the said rotation, the engagement / disengagement cam 33 presses the pressing protrusion 33B against the pressed portion 34A formed to protrude on the outer peripheral surface of the operation cam 34, and the operation cam 34 is centered on the operation shaft 35A. It is designed to push in the clockwise direction shown in the figure.

  In addition, with the above-described rotation of the engaging / disengaging cam 33, the shaft pin 33A, which is the center of rotation, is pressed against the lower surface of a pulling operation link 36, which will be described later. An operation is performed so as to pull up in the counterclockwise direction shown in the drawing centering on a certain front shaft pin 36A. The above-described engagement / disengagement cam 33 is always held in the above-described rotationally operated position while the above-described entry / exit lever 6 is operated, and is a state where the above-described operation cam 34 and the above-described lifting operation link 36 are pushed and rotated. It is supposed to hold on.

  However, the engagement / disengagement cam 33 described above is moved back from the changed position where the seat position is retracted from the memory piece 21B by the operation of the passenger lever 6 as shown in FIG. The above-described cancel link 22B of the detection operation body 22 is operated so as to be pushed up from below, and the shaft pin 33A is sandwiched between the kick protrusions 22Bb3 of the kick cam 22Bb attached to the tip of the cancel link 22B. A kicked pin 33C provided so as to protrude in the sheet width direction from a position opposite to the pressing protrusion 33B is pushed upward and is shown in the figure against the release arm 32 around the shaft pin 33A. It is rotated so that it is pushed clockwise.

  By the above rotation operation, the engagement / disengagement cam 33 maintains the pull-up operation link 36 by the shaft pin 33A serving as the rotation center thereof, and the push-projection piece 33B on the lower end side thereof with the pressed portion 34A of the operation cam 34. Is released from the engagement state with the operation cam 34. As a result, the engagement / disengagement cam 33 releases the pushing state of the operation cam 34 and before the operation cam 34 is pushed around the operation shaft 35A by a spring biasing force (not shown) as shown in FIG. It is designed to return to the initial position.

  The above-described kicked pin 33C of the engagement / disengagement cam 33 is passed through a long hole 32B extending in an arc shape formed through the above-described release arm 32, and the previous portion passing through the long hole 32B is a cancel link 22B. The kick cam 22Bb is configured to extend in the sheet width direction so as to be pushed and kicked from below by the kick protrusions 22Bb3. The long hole 32B described above is formed in a curved shape in an arc shape drawn around the shaft pin 33A serving as the rotation center of the engagement / disengagement cam 33 described above.

<< Configuration of Operation Cam 34 >>
As shown in FIGS. 8 to 9, 11, and 13, the operation cam 34 is an operation shaft that orients the axis in the sheet width direction that rotatably connects the left end of a rod 35 to be described later to the base bracket 31. 35A is passed through in the axial direction and is integrally connected to the operation shaft 35A. The operation cam 34 is integrated with the operation shaft 35A by the biasing force of a spring (not shown) that is normally hooked between the operation cam 34 and the base bracket 31, and the operation cam 34 is shown in FIG. It is in a state of being urged to rotate counterclockwise.

  Due to the urging, the operation cam 34 is normally a slight gap in the rotational direction between the pressed portion 34A formed so as to protrude on the outer peripheral surface of the operation cam 34 and the pressing projection piece 33B of the engagement / disengagement cam 33 described above. It is held in a state where it is locked in a rotational position state with a gap. In the above state, the operation cam 34 is slightly lifted from the upper surface of the loop handle 5 with the operation protrusion 34B formed so as to protrude from the outer peripheral surface located on the clockwise direction in the drawing from the pressed portion 34A. It is supposed to be held as.

  As shown in FIG. 20, the operation cam 34 having the above-described configuration is operated by the release arm 32 when the release arm 32 described above is rotated about the operation shaft 35 </ b> A in the clockwise direction by the operation of the entry / exit lever 6. The pushing protrusion 33B of the engaged and disengaged cam 33 is pressed against the pressed portion 34A, and is integrally rotated with the operation shaft 35A and is rotated around the operation shaft 35A in the clockwise direction in the drawing. Due to the rotation, the operation cam 34 is operated so as to push the operation protrusion 34B against the upper surface of the loop handle 5 from above and to push down the loop handle 5.

  As a result, the operation cam 34 is operated in the same manner as when the loop handle 5 is operated as shown in FIG. 15, and the lock spring 13 is pushed down via the loop handle 5 to be released from the locked state. ing. As shown in FIG. 21, the operation cam 34 receives the operation force from the release arm 32 via the engagement / disengagement cam 33 and pushes down the loop handle 5 while the passenger lever 6 is operated. The operation state is maintained.

  However, the operation cam 34 is returned to the initial position when the operation of the passenger lever 6 is returned as shown in FIG. Further, as shown in FIG. 24, the above-described operation cam 34 returns the seat position from the position where the seat position is retracted by the operation of the passenger lever 6 to the position where the memory piece 21B is placed. When the engagement / disengagement cam 33 described above is pushed and kicked so as to be disengaged from the engagement state with the operation cam 34, it is returned to the initial position by a spring biasing force (not shown). .

<About the configuration of the rod 35>
As shown in FIG. 4, the rod 35 is integrally formed with an operation shaft 35 </ b> A whose left end is oriented in the seat width direction and is rotatably connected to the front lower side region of the base bracket 31 described above. While being connected, the right end is integrally connected to an operation shaft 35B which is axially oriented in the seat width direction and is rotatably connected to a support bracket 16 mounted on the upper rail 12 on the same side. It is supposed to be in a state. With the configuration described above, the rod 35 is integrally connected to the left operation shaft 35A and the operation cam 34 shown in FIG. 20 integrally connected to the left operation shaft 35A in a state of being integrally connected to the left operation shaft 35A and the right operation shaft 35B. It is configured to be able to transmit the movement of the rotation operation to the right operation shaft 35B.

  The above-described right operation shaft 35B shown in FIG. 4 is pressed against the upper surface of the loop handle 5 on the same side by performing an integral rotation operation with the left operation shaft 35A. An arm member (not shown) to be pushed down is integrally connected. With the above-described configuration, the left and right operation shafts 35A are rotated and the right operation shaft 35B shown in FIG. Thus, the loop handle 5 attached to the slide rail 10 on each side is operated so as to be pushed down all at once. Accordingly, the lock springs 13 of the slide rails 10 on each side are operated to be pushed down all at once, so that the slide lock state of the slide rails 10 on each side is released all at once. Further, the right operation shaft 35B is also returned all at once as the rotation operation of the left operation shaft 35A is returned.

<< Configuration of Lifting Operation Link 36 >>
As shown in FIGS. 8 to 9, 11, and 13, the lifting operation link 36 has an arm shape having a long shape in the front-rear direction, and its front end portion is oriented in the seat width direction. The shaft pin 36 </ b> A is provided in a state where the pin is rotatably connected to the front side region of the base bracket 31. The lifting operation link 36 protrudes in the sheet width direction connected to the upper end portion of a follow-up member 38 described later in a long hole 36 </ b> B extending in the front-rear direction formed so as to penetrate the rear end portion in the sheet width direction. The shaft pin 38B is in a state of being passed therethrough and is always shown in FIG. 13 by the action of a force that elastically supports the accompanying rotation member 38 with respect to the base bracket 31 via a pressure receiving member 37 described later. The initial position is maintained.

  As shown in FIG. 15, the above-described pulling operation link 36 allows the accompanying rotation member 38 to move when the above-described loop handle 5 is operated to operate the following rotation member 38 to be pushed down. As described above, the shaft pin 38B is slightly pushed downward while sliding the shaft pin 38B backward in the long hole 36B. However, as shown in FIG. 20, the lifting operation link 36 is operated when the release lever 32 is operated and the release arm 32 is rotated about the operation shaft 35A in the clockwise direction as shown in the figure. The lower surface is pressed from below by the shaft pin 33A, which is the center of rotation of the engagement / disengagement cam 33 connected to the shaft 32, and is rotated in the counterclockwise direction shown in the figure around the shaft pin 36A.

  By the above rotation, the lifting operation link 36 is operated so as to lift the shaft pin 38B passed through the long hole 36B on the rear end side, and the rotation member 38 is moved upward against a spring biasing force (not shown). The leg piece 38D on the lower end side of the follower member 38 is pulled up to a position higher than the raised portion 21Bb of the memory piece 21B. On the lower surface of the above-described pulling operation link 36, a relief surface 36C curved in an arc shape is formed in the middle region. The relief surface 36C is the center of rotation of the engagement / disengagement cam 33 when the above-described lifting operation link 36 is in an operation state in which the rotation member 38 is lifted to a position higher than the raised portion 21Bb of the memory piece 21B. It is formed in a region to which the shaft pin 33A is applied.

  The relief surface 36C is the center of rotation of the engagement / disengagement cam 33 when the above-described lifting operation link 36 is in an operation state in which the rotation member 38 is lifted to a position higher than the raised portion 21Bb of the memory piece 21B. It is formed so as to be curved into an arc shape drawn around the shaft pin 33A. With such a configuration, the lifting operation link 36 causes the rotational movement of the release arm 32 to proceed further after the follower member 38 is lifted to a position higher than the raised portion 21Bb of the memory piece 21B. Even so, it is not operated so as to be pulled up any further, and an excessive amount of operation movement can be released so as not to raise the rotation member 38 more than necessary.

<< Configuration of pressure receiving member 37 >>
As shown in FIGS. 8 to 9, 11, and 13, the pressure receiving member 37 is formed in a plate shape having a shape elongated in the height direction, and the height direction with respect to the base bracket 31 described above. It is provided as a state of being guided so that it can slide straight. Specifically, the pressure receiving member 37 described above is a shaft support pin that extends in the seat width direction and is fixed to the base bracket 31 in a long hole 37A that extends straight in the height direction formed in an intermediate portion in the height direction. 31E is passed. In addition, the pressure receiving member 37 described above is in a state in which a guide piece 31 </ b> B that is bent so as to protrude from the base bracket 31 in the seat width direction is applied to the rear side surface.

  With the above configuration, the pressure receiving member 37 is supported in such a manner that it can receive a guide by the above-described shaft support pin 31E and the guide piece 31B and can slide straight along the height with respect to the base bracket 31 in the height direction. It is supposed to be in a state. The pressure receiving member 37 described above is normally moved and urged in a direction in which the pressure receiving member 37 is lifted straight upward with respect to the base bracket 31 by a spring urging force (not shown) hooked between the pressure receiving member 37 and the base bracket 31 described above. It is in a state.

  Due to the urging, the pressure receiving member 37 is normally held in the initial position where the lower end of the long hole 37A hits the shaft support pin 31E and is locked as shown in FIG. Yes. The pressure receiving member 37 described above is formed with a pressure receiving piece 37 </ b> C projecting from the front lower corner to the front lower side in a hook shape. As shown in FIG. 14, the pressure receiving piece 37 </ b> C protrudes from the pressure receiving member 37 into the region immediately below the rear end portion of the loop handle 5, and the initial stage before the loop handle 5 is operated. In this state, a slight gap in the height direction is provided between the loop handle 5 and the loop handle 5.

  As shown in FIG. 15, the pressure receiving member 37 is operated such that the loop handle 5 is operated and the rear end thereof is pushed down, so that the pressure receiving piece 37C is pressed from above by the rear end. Thus, it is operated so as to be pushed downward against a spring biasing force (not shown). As a result of the above operation, the pressure receiving member 37 pushes down a rotating member 38 (to be described later) elastically connected to the pressure receiving member 37 via a spring (not shown), and the pressure receiving member 37 described above via the rotating member 38. The memory piece 21B is operated to be pushed downward.

  Further, the pressure receiving member 37 described above is operated so as to push down the rotating member 38 by operating the loop handle 5 described above, so that the memory piece 21B is bottomed and the rotating member 38 cannot be further pressed down (see FIG. 15), when the loop handle 5 is further operated to the limit position, as shown in FIG. 16, the excessive operation movement amount pushed down by the loop handle 5 is caused by the rotation member 38. Can be released by the bending of the spring (not shown) interposed therebetween.

  As shown in FIG. 17, the pressure receiving member 37 described above is in an operation state in which the memory piece 21 </ b> B is pushed down by the rotation member 38 while being pushed down by the loop handle 5 while the loop handle 5 is being operated. It is to be kept as it is. As shown in FIG. 18, the pressure receiving member 37 described above is returned to the initial position when the operation of the loop handle 5 is returned.

<< Configuration of the rotating member 38 >>
As shown in FIGS. 8 to 9, 11, and 13, the follower member 38 is formed in a plate shape having an elongated shape in the height direction, and the pressure receiving member 37 and the sheet width direction ( In the same manner as the pressure receiving member 37, it is provided in a state of being guided so as to be able to slide straight in the height direction with respect to the base bracket 31. Specifically, the above-mentioned turning member 38 extends in the width direction of the seat fixed to the above-described base bracket 31 in a long hole 38 </ b> A that extends straight in the height direction formed in an intermediate portion in the height direction. The shaft support pin 31 </ b> E is in a state of being passed along with the elongated hole 37 </ b> A of the pressure receiving member 37.

  In addition, the above-mentioned turn-around member 38 is in a state in which a guide piece 31 </ b> B bent together with the pressure-receiving member 37 is applied to the rear side portion thereof so as to protrude from the above-described base bracket 31 in the seat width direction. . With the above-described configuration, the rotation member 38 receives the guide by the above-described shaft support pin 31E and the guide piece 31B, and slides straight along the height with respect to the base bracket 31 along with the pressure receiving member 37 along these. It is supposed to be supported in a shape that can be done.

  The follow-up member 38 described above is normally moved and urged in a direction in which it is pushed down by the urging force of a tension spring (not shown) hooked between the pressure-receiving member 37 and the pressure-receiving member 37 described above. It is said that. As shown in FIG. 13, the urging member 38 is normally bent in the sheet width direction from the upper end rear portion of the pressure receiving member 37 by the above biasing, as shown in FIG. 13. In this way, it is held in the initial position where it comes into contact with the locking piece 37B that protrudes from above and is locked.

  In the state of the initial position, the swivel member 38 is in a state where the leg piece 38D on the lower end side is lowered to a position lower than the upper surface of the raised portion 21Bb of the memory piece 21B described above, and the seat position is the memory piece 21B. In the initial state of being placed at the storage position before the change, the leg piece 38D on the lower end side is held in a state where the leg piece 38D is dropped onto the front portion of the raised portion 21Bb of the memory piece 21B. Yes.

  When the loop handle 5 described above is operated as shown in FIG. 15 from the initial state shown in FIG. 14, the follower member 38 is operated so as to be pushed downward via the pressure receiving member 37 described above. The As a result, the follower member 38 pushes down the memory piece 21B by applying a pushing force to the pushing portion 21Ba1 of the memory piece 21B from above with the leg piece 38D on the lower end side. Even if the loop handle 5 is further operated to the limit position from the pushed-down operation state, the follow-up member 38 described above has the pressure-receiving member 37 pushed down by the loop handle 5 as shown in FIG. 38, the above-described tension spring (not shown) is stretched and moved so as to release an excessive amount of operation movement, so that an excessive load is not received.

  As shown in FIG. 17, the above-mentioned rotating member 38 is held in the operation state in which the memory piece 21B is pushed down by the pressing force received from the above-described pressure receiving member 37 while the above-described loop handle 5 is being operated. It has become so. Then, as shown in FIG. 18, the above-described rotation member 38 is returned to the initial position when the operation of the loop handle 5 is returned.

  Further, as shown in FIG. 19, the above-mentioned turning member 38 is connected at its upper end portion to the rear end portion of the aforementioned lifting operation link 36, and the lifting operation link 36 is shown in FIG. By being pulled up by the operation of No. 6, the bottom surface of the leg piece 38D on the lower end side is pulled up to a position where the bottom surface of the memory piece 21B exceeds the upper surface of the raised portion 21Bb. Specifically, in the above-described turning member 38, the shaft pin 38B connected to the upper end portion thereof and extending in the sheet width direction is formed in the elongated hole 36B extending in the front-rear direction formed in the rear end portion of the lifting operation link 36. It is said that it has been passed through.

  With the above-described configuration, the follow-up member 38 is operated in such a manner that the pull-up operation link 36 is pushed up by the shaft pin 33A of the engagement / disengagement cam 33 by the operation of the getting-on / off lever 6 and thereby the loop handle 5 is pushed down. While the pressure receiving member 37 is pushed down, the pressure receiving member 37 is operated so as to be pulled up by the pulling operation link 36 against the urging force of a tension spring (not shown) hooked between the pressure receiving member 37. Yes.

  Since the above-mentioned turning member 38 is held in the operation state in which the above-described pulling-up operation link 36 is pulled up while the above-described getting-on / off lever 6 is operated, the above-described leg piece 38D is removed from the memory piece 21B. The operation state is raised. Therefore, by moving the seat position backward while keeping the operation state of the above-mentioned getting on / off lever 6, as shown in FIG. 21, the follow-up member 38 does not pull the memory piece 21B in its moving direction, and the memory piece 21B. Is left engaged with the memory rail 21A, and moves over the memory piece 21B to the rear side.

  Then, as shown in FIG. 22, when the operation of the boarding lever 6 is returned, the above-mentioned turn-up member 38 is released from the above-described pull-up operation state by the pull-up operation link 36 and returns to the initial position state. It has come to be dropped. Further, as shown in FIG. 23, the carry member 38 described above is operated again from the raised portion 21Bb of the memory piece 21B by operating the passenger lever 6 again from the position where the seat position is moved. Also, it can be operated to be raised to a higher position. Accordingly, by returning the seat position to the storage position where the memory piece 21B before the backward movement is moved while the operation lever 6 is in the operated state, as shown in FIG. 21B is returned to a position over the front side of the raised portion 21Bb.

  The above-described leg piece 38D on the lower end side of the rotating member 38 is an inclined surface 38Da whose front lower side is chamfered obliquely. With the above configuration, the leg piece 38D of the turning member 38 is in an operation state in which the seat position is pushed down by the operation of the loop handle 5 from the position where the seat position is retracted from the remaining storage position of the memory piece 21B as shown in FIG. Even if pressed against the raised portion 21Bb of the memory piece 21B from the rear side, the contact from the rear side with the raised portion 21Bb is released obliquely by the contact with the inclined surface 38Da, and the upper portion of the raised portion 21Bb is appropriately And is returned to a position that crosses the raised portion 21Bb to the front side.

<< Overall operation description >>
The slide rail device M configured as described above can adjust the seat position as follows by the operation of the getting-on / off lever 6 described above in FIG. 1 and the operation of the loop handle 5 described above in FIG. It will be moved to the state. In the following description, the state where the sheet position is placed at a storage position before the change of the memory piece 21B as shown in FIG. 13 will be described as an initial state.

<< ● Movement of each part when operating the loop handle 5 >>
First, the movement of each part when the loop handle 5 is operated from the initial state will be described with reference to FIGS. That is, when the pulling operation of the loop handle 5 is performed from the initial state shown in FIG. 14, the lock spring 13 is pushed down by the rear end portion of the loop handle 5 to be released from the locked state as shown in FIG. The member 37 is also pushed down and the memory piece 21B is pushed down via the follower member 38 to be released from the engaged state with the memory rail 21A. Although the loop handle 5 can be operated up to the limit position shown in FIG. 16, even if operated up to this position, the pressure receiving member 37 and the rotating member 38 are overloaded due to excessive operation as described above. Is not hung.

  Next, while the loop handle 5 is operated, the seat position is moved backward as shown in FIG. 17, so that the leg piece 38D of the follower member 38 is in the operation state in which the memory piece 21B is pushed down. The raising portion 21Bb is pressed to the rear side, and the memory piece 21B is moved to the moving position of the sheet position in the form of being drawn by the turning member 38. When the seat position is moved forward, the leg-side link 22Ab of the trigger link 22A presses the raised portion 21Bb of the memory piece 21B forward, so that the memory piece 21B is moved to the seat position moving position. It has come to go.

  When the seat position is moved to an arbitrary position and the operation of the loop handle 5 is returned as shown in FIG. 18, the lock spring 13 returns to the locked state and the pressure receiving member 37 and the rotation member 38 are also in the initial positions. The memory piece 21B is returned to the same state as the initial state at the position where the memory piece 21B is engaged with the memory rail 21A, that is, at the position where the seat position is changed.

<< ● Movement of each part when operating the entry / exit lever 6 >>
Next, with reference to FIG. 19 to FIG. 25, the movement of each part when the entry / exit lever 6 is operated from the initial state will be described. That is, when the operation of the entry / exit lever 6 is performed from the initial state shown in FIG. 19, the rear end portion of the loop handle 5 is pushed down via the operation cam 34 by the operation of the release arm 32 as shown in FIG. The lock spring 13 is pushed down by the rear end of the loop handle 5 to be released from the locked state, and the pressure receiving member 37 is also pushed down. However, on the other hand, the lifting operation link 36 is pulled up by the shaft pin 33A, which is the rotation center of the engagement / disengagement cam 33 connected to the release arm 32, and the follower member 38 is moved up and down on the memory piece 21B. It is operated to be pulled up to a position higher than 21Bb. Accordingly, even when the passenger lever 6 is operated, the memory piece 21B is held in a state of being engaged with the memory rail 21A.

  Next, by moving the seat position backward as shown in FIG. 21 with the passenger lever 6 being operated, the revolving member 38 remains in the initial position while the memory piece 21B is left in the initial position. Get over the raised portion 21Bb to the rear side. As a result of the above movement, the trigger link 22A is released from the state of being pressed against the raised portion 21Bb of the memory piece 21B from the rear side, and the leg side link 22Ab is kicked forward by a spring biasing force (not shown). Can be switched to the posture.

  When the seat position is moved to an arbitrary position and the operation of the passenger lever 6 is returned as shown in FIG. 22, the lock spring 13 is returned to the locked state, and the pressure receiving member 37 and the rotation member 38 are also in the initial positions. Returned to the state. Next, when the operation of the getting-on / off lever 6 is performed again from the moving position as shown in FIG. 23, the rear end portion of the loop handle 5 is pushed down by the operation of the release arm 32 as in the previous operation, The lock spring 13 is released from the locked state, and the turning member 38 is pulled up to a position higher than the raised portion 21Bb of the memory piece 21B.

  Next, in the above operation state, as shown in FIG. 24, by returning the seat position from the retracted position to the position where the memory piece 21B is placed, the above-mentioned rotating member 38 of the memory piece 21B is The trigger link 22A is pushed from the rear side to the raised portion 21Bb of the memory piece 21B, and the cancel link 22B is engaged and disengaged by the leading kick cam 22Bb. Is kicked so as to be disengaged from the engaged state with the operation cam 34.

  As a result of the kicking operation, as shown in FIG. 25, the operation cam 34 is returned to the initial position by a spring biasing force (not shown) even when the passenger lever 6 is maintained in the operating state. The operating state of the loop handle 5 that has been pushed and moved by the cam 34 is returned, and the lock spring 13 returns to the locked state. With the above operation, the seat position can be changed even if the getting-on / off lever 6 remains in the operating state by a simple operation of moving the seat position toward the storage position before the change with the getting-on / off lever 6 being operated. When the remaining storage position of the memory piece 21B is reached, it is returned to the slide-locked state and returned to the storage position before the change. Therefore, by subsequently returning the operation of the passenger lever 6, the release lever is returned to the initial position, and the slide rail device M is returned to the same state as the initial state.

  When the seat position is moved backward after the operation of the passenger lever 6 shown in FIG. 21, the head side link 22Ac of the trigger link 22A described above can be moved back to the passenger support position near the rearmost as it is. When the trigger link 22A is pressed from the front side to the locking surface portion 15A of the stopper bracket 15 described above with reference to FIG. 5 and operates in the same manner as shown in FIGS. 24 to 25, the seat position is slide-locked at that position. It is designed to operate. With the above operation, the seat position can be easily retracted and locked to the boarding / alighting support position in the vicinity of the rearmost at a stretch, and the boarding / alighting operation can be appropriately supported with a wide boarding / alighting space.

<< Summary >>
In summary, the slide rail device M of the present embodiment is configured as follows. That is, a slide rail (slide rail 10) whose seat position can be adjusted by a release operation of the lock mechanism (lock spring 13), and a memory member (memory piece 21B) capable of storing the position before the seat position is changed by mechanical engagement. ) And a memory mechanism (memory mechanism 20) that operates to return the seat position to the storage position before the change by hitting the memory member (memory piece 21B). M). This vehicle slide rail device (slide rail device M) releases the lock mechanism (lock spring 13) from the locked state and releases the memory member (memory piece 21B) from the position storage state and releases it in the sliding direction. A memory operation mechanism (memory operation mechanism 30B) that operates to release the lock mechanism (lock spring 13) from the lock state while leaving the operation mechanism (release operation mechanism 30A) and the memory member (memory piece 21B) in a position-stored state. And having.

  The memory mechanism (memory mechanism 20) is in an initial posture state in which it is pressed against the memory member (memory piece 21B) from one side (rear side) in the sliding direction in a state where the seat position is at the storage position before the change (FIG. 19). The sheet position is released to one side (rear side) in the sliding direction while the memory member (memory piece 21B) is left in the position stored by the operation of the memory operation mechanism (memory operation mechanism 30B). Accordingly, the memory is moved by the movement of the seat position to the storage position before the change by switching to the other side tilt posture (the posture in FIG. 21) tilted so as to be moved to the other side (front side) of the slide direction by the bias. The memory operation mechanism (memory operation mechanism 3) is pushed and moved to the initial posture state (state shown in FIG. 24) by hitting the member (memory piece 21B). The trigger link (trigger link 22A) for releasing the release state of the lock mechanism (lock spring 13) by B) and returning to the locked state, and the trigger link (trigger link 22A) in the initial posture (state in FIG. 19) Trigger link for the operation that is pushed and moved to the other side (front side) in the sliding direction with respect to the memory member (memory piece 21B) in which the sheet position is in the position storing state by the operation of the memory operation mechanism (memory operation mechanism 30B) While the (trigger link 22A) is pushed and tilted so as to be moved to one side (rear side) in the sliding direction by contact with the memory member (memory piece 21B), the memory member (memory) Overload that allows the piece 21B) to be moved to a region beyond the other side (front side) of the slide direction Due to the avoidance mechanism (overload avoidance mechanism 22M) and the overload avoidance mechanism (overload avoidance mechanism 22M), the trigger link (trigger link 22A) crosses the memory member (memory piece 21B) to the other side (front side) in the sliding direction. The trigger link (trigger link 22A) is moved from the moved state to the one side (rear side) in the sliding direction with respect to the memory member (memory piece 21B) in which the seat position is in the position storage state. Relief mechanism that allows the memory member (memory piece 21B) to be returned to the region beyond one side (rear side) in the sliding direction while being bent and rotated in a bent shape by contact with the memory member (memory piece 21B) (Relief mechanism 22N).

  With this configuration, the seat position is in the storage position before the change, that is, the sliding direction with respect to the memory member (memory piece 21B) in which the trigger link (trigger link 22A) is in the position storage state. The trigger link (trigger link 22A) is moved to the memory member (memory piece) by the operation of the memory operation mechanism (memory operation mechanism 30B) from the state of the initial posture pressed from one side (rear side) (state of FIG. 19). 21B), the trigger link (trigger link 22A) is moved to the memory member (memory piece 21B) by the overload avoidance mechanism (overload avoidance mechanism 22M) even if operated to be pushed from one side (rear side) in the sliding direction. The memory member (memory piece 21B It is possible to move the to the area beyond the other side of the sliding direction (front side). Further, the trigger link (trigger link 22A) is operated so as to be returned from the state in which the memory member (memory piece 21B) exceeds the other side (front side) in the sliding direction to one side (rear side). At times, the memory member (memory piece 21B) is slid while the trigger link (trigger link 22A) is bent and rotated in a bent shape so as to escape from the memory member (memory piece 21B) by the escape mechanism (relief mechanism 22N). It is possible to return to a region beyond one side (rear side) of the direction. With such a configuration, the position of the memory member (memory piece 21B) and the trigger link (trigger link 22A) can be reduced without impairing the position detection function caused by the contact of the trigger link (trigger link 22A) with the memory member (memory piece 21B). It is possible to appropriately avoid an overload being input between them.

<< About 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.

  The slide rail locking mechanism is of the type 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. It is not limited to the configuration. 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, the memory mechanism is not limited to the use of storing the position before the change of the sheet position and moving the sheet position in the direction of retreating from the storage position, but is provided for the use of moving the sheet position forward from the storage position. It may be.

DESCRIPTION OF SYMBOLS 1 Seat 2 Seat back 3 Seat cushion 4 Headrest 5 Loop handle 6 Entry / exit lever 10 Slide rail 11 Lower rail 11A Bottom part 11B Lower side fin part 11C Lock groove 12 Upper rail 12A Top plate part 12Aa Through hole 12B Upper side fin part 12Ba Through-hole 12Bb Hook 12C Through groove 13 Lock spring (lock mechanism)
13A Front end portion 13B Rear end portion 13C Lock portion 14 Tension spring 15 Stopper bracket 15A Locking surface portion 16 Support bracket 20 Memory mechanism 21 Memory body 21A Memory rail 21Aa Guide hole 21Ab Engagement hole 21B Memory piece (memory member)
21Ba Seat surface part 21Ba1 Push-in part 21Ba2 Engagement claw 21Bb Riding part 21Bb1 Curved surface 21Bc Posture holding part 21Bc1 Support point 21Bc2 Support point 21C Leaf spring 21Ca Front leg 21Cb Rear leg 22 A Trigger shaft 22A Trigger link 22A Trigger link 22A Trigger link 22A Trigger link 22A Side link 22Ac1 Locking piece 22B Cancel link 22Ba Shaft pin 22Bb Kicking cam 22Bb1 Shaft pin 22Bb2 Locking piece 22Bb3 Kicking protrusion 22Bc Locking protrusion 22C Operation link 22Ca Shaft pin 22Cb Shaft pin 22M Overload avoidance mechanism 22N Relief mechanism 22N Mechanism 30A Release operation mechanism 30B Memory operation mechanism 31 Base bracket 31A Locking piece 31B Guide piece 31C Long hole 31D Long hole 31E Axial support pin 32 Release arm 32A Cable 2B long hole 33 engagement / disengagement cam 33A shaft pin 33B pushing projection piece 33C kicked pin 34 operation cam 34A pressed portion 34B operation projection piece 35 rod 35A operation shaft 35B operation shaft 36 lifting operation link 36A shaft pin 36B long hole 36C relief surface 37 pressure receiving member 37A long hole 37B locking piece 37C pressure receiving piece 38 rotating member 38A long hole 38B shaft pin 38C locking projection 38D leg piece 38Da inclined surface F floor BP B pillar M vehicle slide rail device (slide rail device)

Claims (1)

The seat position includes a slide rail capable of adjusting a seat position by a release operation of a lock mechanism, and a memory member capable of storing a position before the seat position is changed by mechanical engagement. A vehicle slide rail device having a memory mechanism that operates to return the storage position to the storage position before the change,
A release operation mechanism that operates to remove the lock mechanism from the locked state and to remove the memory member from the position storage state and pull it in the sliding direction;
A memory operation mechanism that operates to remove the lock mechanism from the locked state while leaving the memory member in a position-stored state;
The memory mechanism is
In a state where the sheet position is at the storage position before the change, the memory member is held in an initial posture pressed against the memory member from one side in a sliding direction. By leaving the member in the position memorized position and being separated to one side in the sliding direction, the seat position is switched to the other side tilting posture tilted to be moved to the other side in the sliding direction by urging. A trigger link that is pushed and moved to the initial posture state by the movement returned to the storage position before the change to release the release state of the lock mechanism by the memory operation mechanism and return to the lock state;
The trigger for the operation in which the seat position is pushed and moved to the other side in the sliding direction with respect to the memory member in the position memory state by the operation of the memory operation mechanism from the state in which the trigger link is in the initial posture. The memory member can be moved to an area beyond the other side in the sliding direction while the link is in a one-side inclined posture that is pushed and inclined so as to be moved to one side in the sliding direction by contact with the memory member. A load avoidance mechanism;
From the state in which the trigger link is moved by the overload avoidance mechanism to the region beyond the memory member on the other side in the sliding direction, the seat position is shifted to one side in the sliding direction with respect to the memory member in the position storage state. An escape mechanism that allows the memory member to be returned to a region beyond one side in the sliding direction while the trigger link is bent and rotated in a bent shape by contact with the memory member in response to the returned movement. A slide rail device for vehicles.

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