JP2006281814A - Seat slide device having walk-in locking mechanism with memory - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat slide device having a walk-in locking mechanism with a memory. <P>SOLUTION: A slide is unlocked by pushing up a latch releasing rod 40 by a memory part releasing lever 24. A kick-down plate 25 holds the memory part releasing lever 24 via a pin 23, and the unlocked state of the slide is kept. A component 4 for a position memory having a cutout 8 is fixed to a lower rail 1 side, and a memory base 9 having a memory plate 12 to be attached/detached to/from the cutout 8 is engaged therewith. During the walk-in operation, the memory base remains without interlocking with the seat slide. During the lock return, the remaining memory base 9 and the kick-down plate 25 are brought into contact with each other and turned when the seat is moved backwardly. The kick-down plate 25 releases the holding of the memory part releasing lever 24, and the slide is locked again at the position before the operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory mechanism in a vehicle seat slide device, and in particular, when getting on and off the occupant's rear seat, the seat slide is unlocked in conjunction with the forward movement of the seat back of the front seat, and the entire seat advances. For those equipped with a walk-in mechanism.

The seat slide device equipped with a walk-in lock mechanism with memory memorizes the already set position so that the optimum position of the seat set by the front seat occupant does not change each time the rear seat occupant gets on and off. This is provided with a memory mechanism, and is also disclosed, for example, in Patent Document 1 below.
JP-A-2004-249862

  The conventional one has a structure for restricting lock on / off, and is provided with an open member and a keep member for holding the lock lever in the unlock position, and a memory member and a locking member for storing the position. However, since a large space is required to provide these memory structures, conventionally, these memory structures are provided on the side and upper portions of the lower rail. Therefore, a space for arranging the memory structure around the upper rail and the lower rail is required, and the usable layout is limited. In particular, recently, there is an inconvenience that the lower rail cannot be used when it is embedded in the floor or when the space between the seat cushion and the floor is narrow.

  Accordingly, the present invention provides a seat slide device provided with a walk-in lock mechanism with a memory that can solve the above-mentioned disadvantages.

Accordingly, in order to achieve the above object, the present invention provides a memory part release that connects a walk-in cable linked to the movement of the seat back to an upper rail that is slidably engaged with a lower rail fixed to a position memory part on the inner bottom. A lever and a kicking plate that interlocks with the memory part release lever are supported rotatably, and the memory part release lever extends the latch release rod of the slide lock mechanism so that the memory part release lever can be brought into contact with and separated from the memory part release lever. A memory base provided with a stopper portion with which an engaging portion formed at the lower end of the rocking plate swings is slidably engaged with the position memory component, and the memory base is slidably engaged with the rocking plate. A memory plate with which a pressing portion formed on the moving lower end abuts is rotatably supported, and the memory A seat slide device having a walk-in lock mechanism with a memory, wherein a rate is formed by supporting a notch formed in the position memory component and an engaging claw that can be engaged and disengaged with a spring. Configured.
According to a second aspect of the present invention, the memory unit release lever and the kick-down plate are rotatably supported on an upper portion of the upper rail and hang inward to face the position memory component. The seat slide apparatus having the walk-in lock mechanism with a memory according to claim 1 is configured.

  Since the memory base having the memory elements and the position memory components that make up the memory mechanism can be installed on the inner bottom of the lower rail, a large space is not required outside the lower rail. Therefore, a lock return position storage (full memory) mechanism can be mounted even in a layout where the space in the width direction is narrow. In addition, since the memory mechanism is provided in the upper rail together with the main lock mechanism, there is no possibility that foreign matter interferes and malfunctions.

  The present invention will be described based on the illustrated embodiment. FIG. 1 is a plan view of a seat slide device embodying the present invention, FIG. 2 is a central longitudinal cross-sectional side view thereof, and FIG. 3 is a cross-sectional front view of a memory unit as a main part of the present invention. 1, an upper rail 2 fixed to the seat side is engaged with a slide member 3 so as to be movable in both the front and rear directions in the longitudinal direction.

  The lower rail 1 has a substantially U-shaped cross section upward, and has downward bent portions that are inwardly bent inward at both ends thereof. The upper rail 2 has a substantially U shape with a downward cross section, and has an upward bent portion that is bent outward and outward at both ends thereof. The slide member 3 includes a plurality of slide balls that roll between the lower rail 1 and the upper rail 2 and a retainer that positions the slide balls.

  A position memory component 4 is fixed to the inner bottom of the lower rail 1 in the longitudinal direction. As shown in FIG. 4, main locking holes 5 for fixing the position of the seat are provided in the longitudinal direction at a constant pitch in the downward bending portion of the lower rail 1, and the upper rail 2 has a longitudinal axis around the longitudinal axis. The main locking claw 6 provided on the latch release rod 40 supported rotatably is provided through the locking hole provided in the upper rail 2 from the inside so as to be able to enter and exit, thereby constituting a slide lock mechanism. . The latch release rod 40 has a crank shape at both ends and is supported by a bracket 45 fixed to the upper rail 2 by a rivet 41 so as to be rotatable about the axis between both ends of the crank shape. A spring 46 is urged to rotate in the locking direction so that 6 is engaged with the main locking hole 5. One end of the latch releasing rod 40 extends to the memory unit side, and the other end extends to the front lower side of the seat, and can be rotated by a bracket 43 fixed to the upper portion of the upper rail 2 by a rivet 41. It is rotated by an operating portion 48 provided on an operation member 47 supported by the actuator. The operation member 47 is operated by operating the operation member 47 when the operation handle 43 is connected and lifted upward.

As shown in FIG. 5, the position memory component 4 is made of a long sheet metal in which claw portions 7 and notches 8 are alternately formed at a constant pitch, and the claw portions 7 face each other inward in the width direction. It has a U-shaped cross section. A memory base 9 is engaged with the position memory component 4 so as to be slidable in the longitudinal direction. As shown in FIG. 6, the memory base 9 is formed of a square, U-shaped block in a plan view in which grooves 10 for fitting the claw portions 7 of the position memory component 4 are formed on both side surfaces. The memory plate 12 is slidably engaged in a seesaw state, and the engaging claw 15 provided on the memory plate 12 is rotated and biased by the spring 13 in a direction to engage with the notch portion 8. A stopper portion 11 protruding at a required height is formed on the front surface on the front side. The memory plate 12 has a protrusion 14 formed at one end of the swing side on the front side of the vehicle body, and a two-wing engagement pawl that moves up and down so as to engage and disengage from the notch 8 at the other end of the swing side. 15 is formed.
Accordingly, when the memory base 9 is not applied with a pushing force toward the lower rail 1 on the protrusion 14 side of the memory plate 12, the memory plate 12 is urged to rotate by the spring 13, and the engaging claw 15 is between the claw portions 7. The position memory part 4 cannot be moved in the longitudinal direction. However, when a pressing force against the urging force of the spring 13 is applied to the protruding portion 14 side, the engaging claw 15 escapes from the notch portion 8 to above the claw portion 7, so that the memory base 9 has the position memory component 4. It can move in the longitudinal direction.

  A memory bracket 16 is fixed to the rear side of the slide lock mechanism on the upper surface of the upper rail 2 by rivets 17 and 41, and a memory unit release lever supported rotatably on the memory bracket 16 by shafts 18 and 19, respectively. 24 and the kicking plate 25 are swingable into the upper rail 2 from the upward opening 20 formed in the memory bracket 16 and the opening 21 formed on the upper surface of the upper rail 2 corresponding thereto. It is supported. The memory part release lever 24 is provided with a pin 23 that engages a wire end 28 of a walk-in cable 27 that is pulled by an unillustrated seat back forward at the upper end of the swing, and a side between the pin 23 and the shaft 18. A locking portion 29 is formed on the portion. Further, the lower end of the swing is bent so as to abut on the crank-shaped one end side of the latch release rod 40 so that the latch release rod 40 can be rotated about its axis.

  The kicking plate 25 is formed with a cam portion 26 in which the pin 23 is slidably contacted on the swing upper end side, and the swing lower end side is divided into two and formed in a substantially V-shape. The engaging portion 32 located on the front side can come into contact with the stopper portion 11 of the memory base 9, and the rear pressing portion 33 can come into contact with the upper surface of the side portion of the protruding portion 14 of the memory plate 12. The kicking plate 25 is formed with a locking portion 34 below the shaft 19, and a memory spring 35 is connected between the locking portion 34 and the locking portion 29 of the memory portion release lever 24. Has been. Therefore, when the walk-in cable 27 is pulled in the direction indicated by the arrow in FIG. 2, the memory portion release lever 24 rotates clockwise about the shaft 18, and the pin 23 is disengaged from the cam portion 26. As a result, the kicking plate 25 can be rotated counterclockwise about the shaft 19.

  By the way, in the memory-off state, the memory portion release lever 24 and the kicking plate 25 are in the state shown in FIG. 2, and the pressing portion 33 of the kicking plate 25 is the upper surface of the side portion of the protruding portion 14 of the memory plate 12. The engaging claw 15 of the memory plate 12 has escaped from the notch 8 to above the claw 7. The tip of the pressing portion 33 is inward from the upper surface of the memory base 9 and the axis of the memory plate 12. Accordingly, the memory base 9 is connected to the memory bracket 16 via the kicking plate 25 and integrated with the upper rail 2, and when the upper rail 2 moves, the position memory components also move in the longitudinal direction.

  Therefore, as shown in FIG. 7, when the walk-in cable 27 is pulled in the direction of the arrow in conjunction with the movement of the seat back, for example, the memory portion release lever 24 rotates clockwise about the shaft 18. At the same time, the lower end of the swing rotates the latch releasing rod 40 to remove the main locking claw 6 from the main locking hole 7, and the pin 23 is disengaged from the cam portion 26. The kicking plate 25 is rotated clockwise about the shaft 19. Then, the pin 23 is engaged with the end surface of the cam portion 26 of the kicking plate 25, whereby the memory portion release lever 24 is held, and the unlocked state of the slide is held. The pressing portion 33 of the kicking plate 25 is separated from the side surface of the protruding portion 14 of the memory plate 12, and at the same time, the engaging portion 32 is rotated to a position where the end surface faces the stopper portion 11 in parallel.

  Therefore, since the memory plate 12 is rotated by the force of the spring 13 and the engaging claw 15 enters the notch 8 between the claw parts 7, the memory base 9 moves in the longitudinal direction of the position memory component 4. Is not possible, and memory-on is achieved at that position. Therefore, as shown in FIG. 8, the upper rail 2 is moved to the front side by a walk-in spring (not shown), so that the seat moves to the front side of the vehicle body and the rear seat occupant can get on and off.

When the rear seat occupant gets on and off, the seat back is raised and the seat is retracted to return the seat to the original state. As shown in FIG. 9, the engaging portion 32 of the kicking plate 25 is moved to the memory base 9. By abutting against the stopper portion 11, the kicking plate 25 rotates clockwise about the shaft 19. As a result, the kicking plate 25 rotates clockwise until the pin 23 comes off the end face of the cam portion 26. At this time, the pressing portion 33 does not press the memory plate 12 until the engaging claw 15 is disengaged from the notch portion 8. Then, when the pin 23 is disengaged from the end surface of the cam portion 26, the memory portion release lever 24 rotates counterclockwise around the shaft 18 by the force of the memory spring 35, and the swinging lower end portion of the memory portion release lever 24 is rotated. Is released from the latch release rod 40, and the cam portion 26 kicks down to further rotate the plate 25 so that the pressing portion 33 disengages the memory plate 12 and the engaging claw 15 disengages from the notch portion 8. The slide is locked again at the position, and the memory mechanism returns to the memory-off state. That is, the latch release rod 40 is rotated about the axis by the force of the biased spring 46 to return to the original state, the main locking claw 6 enters the main locking hole 7, and the upper rail 2 is connected to the lower rail 1. It is locked in the original position.
When the front seat occupant changes due to a change or the like, if the operation handle 43 of the slide lock mechanism is rotated to remove the main lock claw 6 from the main lock hole 5 and the seat is moved back and forth appropriately, the memory base Since 9 is sandwiched between the memory base 9 and the memory plate 12, it is pushed by the kicking plate 25 and moves together. Therefore, the memory base 9 is connected to the memory bracket 21 via the memory plate 12 and the kicking plate 25 and integrated with the upper rail 2 (see FIG. 2), and can move in the longitudinal direction of the position memory component 4. In order to be able to do so, it is possible to move to an arbitrary position of the occupant to be replaced and set a new position.

It is a top view which shows the upper rail and lower rail of the seat slide apparatus which implemented this invention. It is a center longitudinal cross-sectional side view of FIG. It is a longitudinal cross-sectional view of a memory unit. It is a longitudinal cross-sectional view of the slide lock mechanism part which provided the main lock nail | claw. It is a perspective view of the components for position memory. It is a perspective view of a memory base and a memory plate. FIG. 3 is an operation explanatory diagram of a memory unit that shifts from a memory-off state to a memory-on state in FIG. 2. It is an operation explanatory view of a memory unit in a memory-on state. It is an operation explanatory view of the memory unit at the time of lock recovery.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lower rail 2 ... Upper rail 3 ... Slide member 4 ... Position memory part 5 ... Main lock hole 6 ... Main lock claw 7 ... Claw part 8 ... Notch part 9 ... Memory base 10 ... Groove 11 ... Stopper part 12 ... Memory Plate 13 ... Spring 14 ... Projection 15 ... Engaging claw 16 ... Memory brackets 18 and 19 ... Shafts 20 and 21 ... Opening 23 ... Pin 24 ... Memory part release lever 25 ... Kick-down plate 26 ... Cam part 27 ... Walk In-cable 28 ... wire ends 31, 34 ... locking portion 32 ... engaging portion 33 ... pressing portion 35 ... memory spring

Claims (2)

  The memory part release lever that connects the walk-in cable that is linked to the movement of the seat back to the upper rail that is slidably engaged with the lower rail fixed to the inner bottom of the position memory part, and the kicking that is linked to this memory part release lever And an engagement rod formed at the lower end of the kicking plate while extending the latch release rod of the slide lock mechanism so that the memory unit release lever can be contacted and separated. A memory base having a stopper portion with which a portion abuts is slidably engaged with the position memory component, and a memory plate with which a pressing portion formed at a swinging lower end portion of the kicking plate abuts the memory base And the memory plate is connected to the position memory component. Seat slide device provided with a memory with walk-in locking mechanism, characterized by comprising a notch disengageably possible engagement claws which form supporting rotating urging spring. 2. The memory part release lever and the kicking plate are supported by an upper part of the upper rail so as to be pivotable and hang inward, and are arranged to face the position memory parts. A seat slide device equipped with the walk-in lock mechanism with memory as described.

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