JP4313058B2 - Walk-in lock mechanism with memory in seat track slide device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a walk-in lock mechanism with a memory capable of automatically returning a seat to an initial position again after moving the seat from an initial position in a seat track slide device of a vehicle.
[0002]
[Prior art]
Conventionally, a walk-in lock mechanism with a memory of a seat track slide device is disclosed in, for example, Patent Document 1 below.
[0003]
As shown in the drawing of Patent Document 1, the lock lever 13, the open lever 15, and the key lever 22 are supported by the upper rail 5, and the memory lever 8 is supported by the lower rail 3 while being assembled to the open lever 15. Has been. When the upper rail 5 is moved relative to the lower rail 3, the lock lever 13, the open lever 15, and the key lever 22 are moved, and at the same time, the memory lever 8 is moved together with the open lever 15 in the moving direction of the upper rail 5.
[0004]
In the normal lock state in which the seat back 4a is raised at the initial position of the seat 4, the open lever 15 rotates and the lock lever 13 is locked, and the memory lever 8 is unlocked. In that case, the lock lever 13 can be unlocked by the handle 12, and the initial position of the seat 4 can be readjusted.
[0005]
When the seat back 4a is tilted to the open state in the normal lock state, the open lever 15 rotates and the lock lever 13 is unlocked and the memory lever 8 is locked, and the open state is kept. It is held by the lever 22.
[0006]
In the memory state in which the seat 4 is moved forward from the initial position in the open state, the lock lever 13, the open lever 15, and the key lever 22 are moved together with the upper rail 5 and separated from the memory lever 8. In that case, the memory lever 8 remains at the initial position of the sheet 4.
[0007]
Thereafter, when the seat 4 is moved backward in the memory state and returned to the initial position, the holding by the key lever 22 is released by the memory lever 8 and the normal lock state is restored.
[0008]
[Patent Document 1]
Japanese Patent Publication No. 6-47353
[0009]
[Problems to be solved by the invention]
  In the above-mentioned Patent Document 1, the memory member 8 is moved by the movement of raising or lowering the seat back 4a.Via the open lever 15In conjunction with this, the lock is released or locked. for that reason,The interlocking portions 19 and 20 are required between the memory lever 8 and the open lever 15, and the seat back 4aInterlocking mechanism among the open lever 15, the key lever 22 and the memory lever 8IsStructure of the walk-in lock mechanism with a memoryIt became one of the causes to make it complicated.
[0010]
  This inventionWith seat backImproved the interlocking mechanism between the open member (corresponding to the open lever 15), the keep member (corresponding to the key lever 22) and the memory member (corresponding to the memory lever 8)Simplified based on the design philosophy made from a different viewpoint from Patent Document 1.Walk-in lock mechanism with memoryOfferThe purpose is to do.
[0011]
[Means for Solving the Problems and Effects of the Invention]
  The present invention will be described with reference to the drawings (FIGS. 1 to 10) of the embodiments described later.The
  The walk-in lock mechanism with memory of the seat track sliding apparatus according to the invention of claim 1 is configured as follows.
[0012]
  The walk-in lock mechanism with memory of the seat track sliding device includes a lower rail (3) fixed to the floor (2) of the vehicle body, and an upper rail fixed to the seat (5) and movably supported with respect to the lower rail (3). (4) is supported so as to be movable with respect to the upper rail (4) so that the locked state (R) for preventing the movement of the upper rail (4) relative to the lower rail (3) and the allowed unlocked state (S) can be taken. Lock member(16)When the seat back (5a) of the sheet (5) is raised, the lock member (16) is brought into the locked state (R) and the lock member (16) is locked when the seat back (5a) is tilted. To release state (S)The open member (23) supported movably on the upper rail (4) side, and the lock member (16) and the open member engaged with the open member (23) in a state where the seat back (5a) is tilted The holding state (K) that holds the moving position of (23) can be taken.The upper rail (4) side was supported so as to be movableKeep member (25)And a memory member (28) supported so as to be movable along the movement direction (X) of the upper rail (4) on the lower rail (3) side. This memory member (28), BLocking part provided on the rail (3) side(39)Locking portion that can be locked (P) and unlocked (Q)(40)have.A first interlocking pressing portion (32a) provided on the upper rail (4) side in conjunction with the open member (23) and a second interlocking pressing contact provided on the pressing member (27) attached to the upper rail (4). The part (43) is arranged along the moving direction (X) of the memory member (28). The first interlocking pressing portion (32a) is in one direction (XF) of both directions (XF, XB) of the movement direction (X) of the upper rail (4) in a state where the seat back (5a) is raised. With the movement of the upper rail (4), the memory member (28) is positioned within the movement trajectory range of the memory member (28) so as to move in one direction (XF) together with the open member (23) and the keep member (25). Then, the memory member (28) is pressed, and the lock member (16), the open member (23), and the keep member (25) are moved together with the movement of the upper rail (4) while the seat back (5a) is tilted. It is located outside the movement trajectory range of the memory member (28) so as to allow separation from (28). The second interlocking pressing portion (43) is in the other direction (XB) of the two directions (XF, XB) of the movement direction (X) of the upper rail (4) in the state where the seat back (5a) is raised. As the upper rail (4) moves, the memory member (28) is positioned within the movement trajectory range of the memory member (28) so as to move in the other direction (XB) together with the open member (23) and the keep member (25). Then, the memory member (28) is pressed, and the lock member (16), the open member (23), and the keep member (25) are moved together with the movement of the upper rail (4) while the seat back (5a) is tilted. The memory member (28) is moved away from the memory member (28) within the movement trajectory range of the memory member (28) so as to be allowed to move away from (28). When the upper rail (4) is moved in the holding state (K) of the keep member (25), the keep member (25) comes into contact with the memory member (28) and the open member (23) and the lock member (16) are separated. -Return to the state in which the toeback (5a) has occurred. The locking portion (40) of the memory member (28) is locked while the memory member (28) is positioned between the first interlocking pressing portion (32a) and the second interlocking pressing portion (43). A release pressing portion (42) to be held in the release state (Q) is attached to the upper rail (4).
[0013]
  Here, “with the movement of the upper rail (4), the locking portion (40) of the memory member (28) is changed from the locked state (P) to the unlocked state (Q)”., SolutionForcibly held in the unlocked state (Q) by the pressing contact portion (42) to allow smooth follow-up movement of the memory member (28).BecauseThe “locking state (P)” and the “unlocking state (Q)” are determined by the difference in the degree of movement resistance of the memory member (28), and the movement resistance in the locking state (P) is the unlocking state. It is set to be larger than the movement resistance in (Q), and in the locked state (P), the memory member (28) can reliably store the initial position, so that inadvertent movement against various forces is prevented. It is necessary that the memory member (28) has a resistance that can smoothly follow and move in the unlocked state (Q).
[0015]
  Invention of Claim 1Then, the memory member (28) does not interlock with the movement of raising or lowering the seat back (5a). Therefore, when the initial position of the seat (5) is readjusted in the normal unlocked state in which the lock member (16) is in the unlocked state (S) at the initial position of the seat (5), the memory member (28) is removed.Open member (23) and keep member (25)As a memory member follow-up means that moves in conjunction with the interlocking pressing portion (32a, 43)And release pressing part (42)It is only necessary to attachA seat back (5a), an open member (23), a keep member (25), and a memory member (28);The interlocking mechanism can be simplified. Therefore, the structure of the walk-in lock mechanism with memory can be simplified.
[0020]
  The invention of claim 1Now, in order to readjust the initial position of the seat (5), the memory member (28)Open member (23) and keep member (25)When moving in conjunction with the memory member(28)The locking part (40)By release pressing part (42)Since it is in the unlocked state (Q), the memory member(28)The following movement can be performed smoothly.
[0021]
  The invention of claim 2 is the invention of claim 1It is configured as follows on the premise of
  The locking portion on the lower rail (3) side is a plurality of locking recesses (39) arranged in parallel along the moving direction (front-rear direction X) of the memory member (28). The locking portion of the memory member (28) is a locking spring (40) that can be engaged with and disengaged from the locking recess (39). An unlocked state (Q) that is released against the force can be taken. For example, the locking spring (40) is a cantilevered or doubly supported leaf spring.
[0022]
  Invention of Claim 2Then, it is possible to simplify the locking means for positioning the memory member (28) and allowing the memory member (28) to move. Therefore, the structure of the walk-in lock mechanism with memory can be further simplified. Also memory member(28)In the unlocked state (Q) in which the locking spring (40) is separated from the locking recesses (39) on the lower rail (3) side.(28)Can follow the movement, so that it is possible to prevent the generation of frictional noise that the locking spring (40) rubs against each locking recess (39).
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a seat track slide device according to an embodiment of the present invention will be described with reference to FIGS.
[0024]
As schematically shown in FIG. 2, as a seat track 1, the floor 2 of the vehicle body has a left-right direction Y (a horizontal direction orthogonal to a horizontal front-rear direction X connecting the forward side and the reverse side of the vehicle) shown in FIG. 1. The lower rails 3 are fixed on both sides of the left and right upper rails 4, and the left and right upper rails 4 are fixed to the seat 5 and supported by the left and right lower rails 3.
[0025]
As shown in FIGS. 4, 6 and 10, slide grooves 6 are formed along the front-rear direction X in the left and right lower rails 3. On the left and right lower rails 3, an opening 6 a is formed in the slide groove 6 so as to open in the vertical direction Z (vertical direction perpendicular to the horizontal front-rear direction X). A plurality of lock holes 7 (lock portions) are juxtaposed along the front-rear direction X on the inner side walls 3 a of the left and right lower rails 3.
[0026]
In the left and right upper rails 4, guide support portions 8 inserted into the slide grooves 6 of the left and right lower rails 3 are formed at the lower ends thereof, and mounting wall portions 9 fixed to the seat 5 are opened from the guide support portions 8. It protrudes upward through 6a. The left and right upper rails 4 are placed on the guide 10 by the guide support portion 8 in the slide groove 6 and supported so as to be movable in the front-rear direction X with respect to the left and right lower rails 3.
[0027]
A lock lever rotation support mechanism M is attached to the inside of the attachment wall portion 9 of the left and right upper rails 4. The left lower rail 3 and upper rail 4 and the right lower rail 3 and upper rail 4 have the same structure, and the left and right lock lever rotation support mechanisms M are interlocked with each other by a U-shaped handle 11. The left and right upper rails 4 and the seat 5 move in the front-rear direction X with respect to the left and right lower rails 3. FIG. 1 shows only one of the lower rail 3 and the upper rail 4.
[0028]
The handle 11 includes left and right handle levers 12 supported so as to be rotatable with respect to the inside of the mounting wall portions 9 of the left and right upper rails 4, and a U-shaped handle bar 13 coupled to the left and right handle levers 12. It has. The left and right handle levers 12 each have a pressing portion 14 that can be interlocked with the lock lever rotation support mechanism M. The pressing portion 14 is biased upward by the elastic force of a torsion coil spring (not shown). When the handle bar 13 is lifted upward against the elastic force of a torsion coil spring (not shown), the left and right handle levers 12 rotate and the pressing portion 14 moves downward.
[0029]
The lock lever rotation support mechanism M includes a lock bracket 15, a lock lever 16 (lock member), and a rod-shaped spring 17. The lock bracket 15 is attached to the inside of the mounting wall portion 9 of the left and right upper rails 4 above the left and right lower rails 3 and has through holes 18 that can face the lock holes 7 of the left and right lower rails 3. In addition, both front and rear support plate portions 19 that can support the lock lever 16 are provided. The lock lever 16 is rotatably supported by the front and rear support plate portions 20 of the lock bracket 15 with respect to the front and rear support plate portions 19 of the lock bracket 15, and is engaged with and disengaged from the lock holes 7 of the left and right lower rails 3. And an interlocking portion 22 that can be engaged with the pressing portion 14 of the handle lever 12. The rod-shaped spring 17 is hooked on the lock bracket 15 and the lock lever 16, and the lock lever 16 is urged by the elastic force of the rod-shaped spring 17 to enter the locked state R. In this locked state R, the lock claws 21 of the lock lever 16 are engaged with the lock holes 7 of the left and right lower rails 3. In this locked state R, when the handle 11 at the lock position 11R is lifted upward against the elastic force of a torsion coil spring (not shown) to the unlock position 11S, the pressing portion 14 of the handle lever 12 is moved to the lock lever 16. , The lock lever 16 rotates against the elastic force of the rod-shaped spring 17. With the rotation, the lock claw 21 of the lock lever 16 is detached from the through holes 8a of the left and right upper rails 4, the lock holes 7 of the left and right lower rails 3, and the through holes 18 of the lock bracket 15 to enter the unlocked state S.
[0030]
As shown in FIGS. 3 and 8, an open member 23 is supported on the outer side of the mounting wall portion 9 of one upper rail 4 so as to be rotatable about a support shaft 24, and in front of the open member 23. A keep member 25 is supported so as to be rotatable about a support shaft 26, and a pressing member 27 is attached in front of the keep member 25. The memory member 28 is supported on the outer wall 3b of one of the left and right lower rails 3 so as to be movable in the movement direction (front-rear direction X) of the upper rail 4 below these members 23, 25, 27. In addition, the locking member 29 is attached so as to extend along the moving direction (front-rear direction X) of the memory member 28.
[0031]
In the open member 23, a front locking lever 31 and a rear pressing lever 32 are extended from a support shaft 24 around which a torsion coil spring 30 is wound. An interlocking rod 33 connected to the seat back 5 a of the seat 5 is connected to the locking lever 31, and an interlocking pin 34 (interlocking part) that can engage with the interlocking part 22 of the lock lever 16. It is attached. In the keep member 25, a front release lever 36 and a rear locking lever 37 are extended from a support shaft 26 around which a torsion coil spring 35 is wound, and the locking lever 37 and the open member 23 are connected to each other. The locking lever 31 is adjacent to each other on both the front and rear sides. The open member 23 and the keep member 25 are urged by the torsion coil springs 30 and 35 in the rotation direction (arrow direction) in which the locking levers 31 and 37 approach each other, and the locking levers 31 and 37 are moved. Are formed with locking portions 31a and 37a which can be engaged with each other.
[0032]
In the locking member 29, a large number of locking recesses 39 are arranged in parallel along the moving direction (front-rear direction X) of the memory member 28. In the memory member 28, a cantilever-like locking spring 40 (plate spring) is attached, and a free end 40 a of the locking spring 40 extends toward each locking recess 39. In the pressing member 27, the arm portion 41 extends backward to the lower side of the locking lever 37 of the keep member 25 and the locking lever 31 of the open member 23. A release pressing portion 42 that can abut against the locking spring 40 of the memory member 28 located below the locking levers 31 and 37 is formed at the tip of the arm portion 41. When the release pressing portion 42 comes into contact with the locking spring 40, the locking spring 40 is bent against its elasticity and enters a locking release state Q in which it is released from the locking recess 39 of the locking member 29. When the release pressing portion 42 is separated from the locking spring 40, the locking spring 40 is restored by its elasticity and is brought into a locked state P in which it is engaged with the locking recess 39 of the locking member 29. In this arm portion 41, an interlocking pressing portion 43 is formed in front of the release pressing portion 42.
[0033]
In the seat track sliding apparatus configured as described above, the walk-in lock mechanism with memory operates as indicated by * below.
* Normal locked state shown in Fig. 3 (a) and Figs.
In the normal lock state, as shown in FIG. 2A, the upper rail 4 is moved and adjusted with the seat 5 to the initial position with the seat back 5 a of the seat 5 raised. Since the handle 11 is in the lock position 11R, the pressing portion 14 of the handle lever 12 is in the upward movement position. Since the open member 23 is not pulled by the interlocking rod 33 connected to the seat back 5a, the locking lever 31 of the open member 23 is rotated upward, and the interlocking pin 34 and the locking portion 31a of the open member 23 are also upward. In the moving position. Since the interlocking portion 22 of the lock lever 16 is not pushed downward by any one of the pressing portion 14 and the interlocking pin 34 and is in the upward movement position, the lock lever 16 is in the locked state R. The memory member 28 is located between the pressing lever 32 of the open member 23 and the release lever 36 of the keep member 25. The keep member 25 stops when the locking lever 37 abuts on the locking lever 31 of the open member 23. The locking portion 31a of the locking lever 31 in the open member 23 and the locking portion 37a of the locking lever 37 in the keep member 25 are separated from each other. The interlocking pressing portion 32 a formed at the lower end portion of the pressing lever 32 in the open member 23 is located within the movement locus range of the memory member 28 at a position close to the rear of the memory member 28. A contact portion 36 a formed at the lower end portion of the release lever 36 in the keep member 25 is located in front of the memory member 28 and outside the movement locus range of the memory member 28. The interlocking pressing portion 43 of the pressing member 27 is located within the movement locus range of the memory member 28 at a position close to the front of the memory member 28. Since the release pressing portion 42 of the pressing member 27 presses the locking spring 40 of the memory member 28, the locking spring 40 is in the unlocked state Q.
[0034]
* Open state shown in Fig. 3 (b) and Figs.
When the seat back 5a of the seat 5 is tilted as shown in FIG. 2B in the normal lock state, the open member 23 is pulled by the interlocking rod 33 connected to the seat back 5a. The lever 31 rotates downward, and the interlocking pin 34 and the locking portion 31a of the open member 23 are in the downward movement position. Since the interlocking portion 22 of the lock lever 16 is pushed downward by the interlocking pin 34, the lock lever 16 is in the unlocked state S. The interlocking pressing portion 32 a of the pressing lever 32 of the open member 23 is located behind the memory member 28 and outside the movement locus range of the memory member 28. As the locking lever 31 of the open member 23 rotates, the locking lever 37 of the keep member 25 rotates until the contact portion 36a of the release lever 36 of the keep member 25 contacts the front end portion 28a of the memory member 28. The locking portion 31a of the locking lever 31 of the open member 23 and the locking portion 37a of the locking lever 37 of the keep member 25 face each other.
[0035]
* Memory state shown in Fig. 8 (a) and Fig. 9
When the upper rail 4 is moved forward XF with respect to the lower rail 3 together with the seat 5 in the open state as shown in FIG. 2C, the handle 11, the lock lever 16, the open member 23, the keep member 25, and the pressing member 27 are moved. Also moves with the upper rail 4. The memory member 28 does not move, and the release pressing portion 42 of the pressing member 27 moves away from the locking spring 40 of the memory member 28 in the forward direction XF, so that the locking spring 40 is restored and the locking recess of the locking member 29 is restored. 39, the memory member 28 is held in the positions of the normal lock state and the open state, and the initial position of the memory member 28 is set. Since the abutting portion 36a of the release lever 36 of the keep member 25 is separated from the front end portion 28a of the memory member 28 in the forward direction XF, the latch lever 37 of the keep member 25 rotates and the latch lever 31 of the open member 23 is rotated. The locking portion 37a of the locking lever 37 of the keep member 25 is engaged with the locking portion 31a, and the keep member 25 enters the holding state K. The interlocking pressing portion 32a of the pressing lever 32 in the open member 23 passes above the memory member 28 in the forward direction XF. The interlocking pressing portion 43 of the pressing member 27 moves away from the front end portion 28a of the memory member 28 in the forward direction XF. Although not shown, when the upper rail 4 is moved rearwardly XB with the seat 5 with respect to the lower rail 3 in the open state, the memory member 28 is also pushed by the interlocking pressing portion 43 of the pressing member 27 and moves. The initial position of the member 28 is changed.
[0036]
* Memory state shown in Fig. 8 (b)
In the memory state, when the upper rail 4 is moved in the rearward direction XB together with the seat 5 with respect to the lower rail 3 while the seat back 5a of the seat 5 is raised or tilted as shown in FIG. The lever 16, the open member 23, the keep member 25, and the pressing member 27 also move together with the upper rail 4. When the contact portion 36 a of the release lever 36 of the keep member 25 contacts the front end portion 28 a of the memory member 28, the lock lever 37 of the keep member 25 rotates and the lock portion of the lock lever 31 of the open member 23. The locking portion 37a of the locking lever 37 of the keep member 25 is released from 31a, and the normal locking state shown in FIGS.
[0037]
* Normal unlock state shown in Fig. 10
In the normal locked state shown in FIGS. 3A and 4 and 5, when the handle 11 is set to the unlocked position 11S, the pressing portion 14 of the handle lever 12 is moved downward, and the interlocking portion 22 of the lock lever 16 is moved to this position. Since the pressing portion 14 is pushed downward, the lock lever 16 enters the unlocked state S. When the upper rail 4 is moved backward XB with respect to the lower rail 3 together with the seat 5 in the unlocked state S, the handle 11, the lock lever 16, the open member 23, the keep member 25, and the pressing member 27 also move, and at the same time, the memory member 28. Also, the front end portion 28a is pushed and moved by the interlocking pressing portion 43 of the pressing member 27. When the upper rail 4 is moved forward XF together with the seat 5 with respect to the lower rail 3 in the unlocked state S, the handle 11, the lock lever 16, the open member 23, the keep member 25, and the pressing member 27 move, and the memory member 28 also moves. Thereafter, the end portion 28b is pushed by the interlocking pressing portion 32a of the pressing lever 32 and moves. When the handle 11 is moved to the lock position 11R at the movement adjustment position of the seat 5, the normal lock state shown in FIGS.
[0038]
As a locking means for positioning the memory member 28 and allowing the memory member 28 to move, for example, a steel ball is urged by a compression coil spring in addition to the locking spring 40 (plate spring). The steel balls may be engaged with and disengaged from the respective locking recesses 39 of the locking member 29. Further, the function of each locking recess 39 in the locking member 29 may be shared by each lock hole 7 of the lower rail 3.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a seat track slide device according to an embodiment as viewed from the outside of a seat in a normal lock state.
FIGS. 2A, 2B, 2C, and 2D are operation explanatory views showing respective movement states of the sheet.
FIG. 3A is a side view showing a normal lock state in the seat track slide device, and FIG. 3B is a side view showing an open state.
FIG. 4 is a cross-sectional view showing a normal locked state in the seat track slide device.
FIG. 5 is a partial plan view of FIG. 4;
FIG. 6 is a cross-sectional view showing an open state in the seat track slide device.
FIG. 7 is a partial plan view of FIG. 6;
FIG. 8A is a side view showing a memory state in the seat track sliding apparatus, and FIG. 8B is a side view showing the memory state.
FIG. 9 is a partial plan view of FIG.
FIG. 10 is a cross-sectional view showing a normal unlocked state in the seat track sliding apparatus.
[Explanation of symbols]
  2 ... Floor, 3 ... Lower rail, 4 ... Upper rail, 5 ... Seat, 5a ... Seat back, 7 ... Lower rail lock hole (lock part), 16 ... Lock lever (lock member), 23 ... Open partMaterial,25 ... KeepMaterial,27 ... Pressing member, 28 ... Memory member, 29 ... Locking member, 32 ... Opening member pressing lever, 32a ...firstInterlocking pressing portion, 36 ... Release lever of keep member, 39 ... Locking recess (locking portion) of locking member, 40 ... Locking spring (locking portion) of memory member, 42 ... Release pressing contact of pressing member Part, 43 ... of the pressing membersecondInterlocking pressing portion, X: front-rear direction (upper rail moving direction, memory moving direction), XF: forward facing, XB: backward facing, R: locked state, S: unlocked state, P: locked state of locking spring, Q: Unlocking state of the locking spring, K: Holding state of the keep member.

Claims (2)

A lower rail fixed to the floor of the vehicle body, an upper rail fixed to the seat and supported so as to be movable with respect to the lower rail ,
A lock member supported so as to be movable with respect to the upper rail so as to be able to take a locked state that prevents the movement of the upper rail with respect to the lower rail and an allowed unlocked state ;
An open member that is movably supported on the upper rail side so that the lock member is locked when the seat back is raised and the lock member is unlocked when the seat back is tilted ;
A keep member supported so as to be movable on the upper rail side so as to be able to take a holding state that engages with the open member in a state where the seat back is tilted and holds the movement position of the lock member and the open member ;
A memory member supported so as to be movable along the movement direction of the upper rail on the lower rail side ,
This memory member has a locking portion that can be locked and unlocked with respect to the locking portion provided on the lower rail side, and a first interlocking pressing portion provided on the upper rail side in conjunction with the open member And a second interlocking pressing portion provided on the pressing member attached to the upper rail, arranged along the moving direction of the memory member,
The first interlocking pressing portion moves the memory member in one direction together with the open member and the keep member in accordance with the movement of the upper rail in one of the two directions of the upper rail moving direction with the seat back raised. The memory member is positioned within the movement trajectory range of the memory member so that the memory member is pressed, and the lock member, the open member, and the keep member are allowed to move away from the memory member with the movement of the upper rail while the seat back is tilted down. Located outside the movement trajectory range of the memory member,
The second interlocking pressing portion moves the memory member in the other direction together with the open member and the keep member in accordance with the movement of the upper rail in the other direction of the movement direction of the upper rail in the state where the seat back is raised. The memory member is positioned within the movement trajectory range of the memory member so that the memory member is pressed, and the lock member, the open member, and the keep member are allowed to move away from the memory member with the movement of the upper rail while the seat back is tilted down. Away from the memory member within the movement trajectory range of the memory member,
With the keep member held, the keep member comes into contact with the memory member as the upper rail moves, and the open member and the lock member are returned to the state where the seat back is raised.
A release pressing portion that holds the locking portion of the memory member in the unlocked state is attached to the upper rail while the memory member is positioned between the first interlocking pressing portion and the second interlocking pressing portion. <br/> A walk-in lock mechanism with a memory in a seat track slide device. The locking portion on the lower rail side is a plurality of locking recesses arranged in parallel along the moving direction of the memory member, and the locking portion of the memory member is a locking spring that can be engaged with and disengaged from the locking recess. 2. The walk with a memory in a seat track slide device according to claim 1, wherein a lock state engaged by an elastic force and a lock release state released against the elastic force can be taken. In-lock mechanism.

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