JPH04124529U - Automotive walk-in seat slide device - Google Patents

Abstract

(57) [Summary] [Purpose] To enable common use of a walk-in seat slide and a seat slide without a walk-in mechanism, and to improve assembly workability. [Configuration] The walk-in mechanism (11) has a second support plate
(12), a first walk-in lever (14), and a second walk-in lever (16), and a mounting portion (12e) is attached to the first support plate (5) fixed to the upper rail (4). By fixing the , the walk-in seat slide is completed. That is, by fixing the second support plate (12) of the walk-in mechanism (11) to the first support plate (5) on a normal seat slide (10) that does not have a walk-in mechanism, it is possible to easily create a walk-in seat. A slide device is formed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is installed in the front seat of a two-door automobile, for example, and the seat back A walk device for automobiles that moves the seat forward in conjunction with the forward tilting motion of the vehicle. This invention relates to a sheet sliding device.

0002

[Conventional technology]

Examples of conventional devices include the one disclosed in Japanese Utility Model Publication No. 57-28675. There is. This device secures a seat with a forward-tilting seat back to the floor. It is attached to the upper rail which is slidably fitted to the lower rail to be mounted. A lock plate is provided along the length of the lower rail, and the upper rail A lock pawl and walk key that engages and disengages from the lock plate are attached to the handle shaft attached to the The mechanism (consisting of an auxiliary lever and a lock retention lever) is rotatably installed. When the seatback is folded forward, the lock retaining lever will lock the seat back via the lever member. disengage the hook claw and move the sheet to the frontmost position. At that time, assistance The lever rides on the retention plate to hold the lock pawl in the released state. the Then, when you raise the seat back and return the seat to the rear, it lands on the holding plate. When the holding lever is released from the holding lever, the rotation of the lock claw is released. This causes the lock pawl to engage the lock plate and fix the seat in the standard position. can be done.

0003

[Problem that the idea aims to solve]

However, in conventional devices such as those mentioned above, the walk-in mechanism is It does not have a walk-in mechanism because it is attached with a locking claw on top. The configuration around the handle axis is significantly different from a normal seat slide, and it It is difficult to share it with regular seat slides, and in order to make it compatible, it is necessary to use a wall slide. Configurations without a locking mechanism, i.e. excluding auxiliary levers and lock retention levers Although it is possible by assembling only the lock pawl to the operating shaft, The assembly work is different between those with a structure and those without, resulting in poor workability. There is a problem in that this leads to an increase in costs.

0004 In view of the above-mentioned problems of the conventional technology, this invention enables common use. Walk-in seat slide system for automobiles that improves assembly workability. The purpose is to provide a

[0005]

[Means to solve the problem]

In order to achieve the above object, the device of the present invention has the following features.

[0006]

[Effect]

The walk-in mechanism includes a second support plate formed with a mounting portion that is fixed to the first support plate. The support plate is pivotally connected to the second support plate by a vertically oriented shaft, and the latch is connected to the second support plate. A connecting hole into which the connecting portion of the member fits and an engaging portion extending outward are formed, and the seal The first walk can be moved to the walk-in operating position in conjunction with the forward tilting movement of the back. an inlever and a first support plate pivotally connected to the second support plate by a horizontally oriented shaft A blocking part that can be engaged with the engaging part of the walk-in lever and a lower rail that extends downward. The second part is formed with a canceling part that can come into contact with the walk-in plate provided in the second part. a walk-in lever, and a first support plate fixed to the upper rail. By fixing the mounting part to the seat, you can create a seat slide with a walk-in mechanism. is completed.

[0007] In other words, a normal seat slide without a walk-in mechanism has a walk-in mechanism. By fixing the second support plate of the in-mechanism to the first support plate, you can easily A walk-in seat slide device is formed.

[0008]

【Example】

Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. Figure 1 shows a pair of left and right seat cushions configured to accommodate seat cushions (not shown). One of the seat slide devices equipped with a walk-in mechanism FIG.

[0009] (1) is a pair of front and rear leg brackets (2) and (3) fixed to the front and rear ends in the longitudinal direction. The lower rail is fixed to the floor side through the The base piece (1a), the left and right side pieces (1b) that stand up from both sides of the base piece (1a), and the tips of both side pieces (1b) It is formed from an upper piece (1c) extending outward from the end. One side piece (1b) A plurality of engagement holes (1d) (shown in FIG. 3) are bored along the longitudinal direction.

0010 (4) is attached to the bottom of a seat (not shown) with a seat back that can tilt forward. The cutout is slidably fitted to the lower rail (1) along the longitudinal direction. The upper rail has a substantially downward U-shaped surface, and is approximately parallel to the base piece (1a) of the lower rail (1). A top piece (4a) that is parallel, a side piece (4b) that hangs down from both sides of the top piece (4a), and both side pieces (4b). A lower piece (4c) that extends inward from the lower end and can be engaged with the lower part of the upper piece (1c) of the lower rail (1) It is formed from.

[0011] The upper piece (4a) of the upper rail (4) has a pair of cylindrical support parts (5a) at its tip. The formed first support plate (5) is fixed, and the support part (5a) has a handle in front. (6a), and one end of the torsion bar (7) is secured to the first support plate (5). Therefore, in Fig. 1, the steering wheel is biased in the direction of arrow A and parallel to the upper rail (4). The pivot (6) is pivoted. The operating shaft ( A latch member (8) is fixed to the lower rail (6), and the lower end of the latch member (8) is fixed to the lower rail (6). A latch tooth (not shown) that can be engaged and detached is inserted into the lock hole (1d) drilled in the side piece (1c) of 1). A connecting portion (8a) extending upward is formed at the upper end.

0012 The latch teeth of the latch member (8) are pushed into the lock hole (1d) by the biasing force of the torsion bar (7). By engaging with the upper rail (4), the longitudinal movement of the upper rail (4) relative to the lower rail (1) is controlled. Lock the seat to fix it in that position, and also operate the operating shaft by operating the handle (6a). By rotating (6) in the release direction to remove the latch teeth from the lock hole (1d). , the upper rail (4) can freely move back and forth with respect to the lower rail (1), and the seat can be moved freely. It can be moved to any position.

[0013] (9) is a walk-in plate fixed to the base piece (1a) of the lower rail (1). The walk-in plate (9) is approximately horizontal from approximately the center in the longitudinal direction to the rear. It has a simple shape with a horizontal surface (9a) that extends outward, and is compact. .

[0014] With the above configuration, the lower rail (1) can be lifted by operating the handle (6a). You can freely move the par rail (4) back and forth, and also keep the upper rail (4) in the specified position. A normal seat that allows you to adjust and move the seat to any position by locking it. A seat slide (10) is configured.

[0015] (11) is the third part fixed to the upper piece (4a) of the upper rail (4) of the seat slide (10). 1 A walk-in mechanism attached to the support plate (5), equipped with a walk-in mechanism. By attaching it to a normal seat slide (10) that does not have a normal seat slide (10) can be a walk-in seat slide device.

[0016] The walk-in mechanism (11) has a horizontal plane (12a) and a vertical piece (12b), as shown in Figure 2. Shaft holes (12c) (12d) are drilled, and mounting portions (5b) (5c) of the first support plate (5) are provided at the front and rear. A second support plate (12) formed with mounting portions (12e) (12f) fixed to the The shaft (13) is pivoted to the shaft hole (12c) in the horizontal surface (12a) of the second support plate (12). , an arc-shaped connecting hole (14a) centered on the shaft (13) into which the connecting part (8a) of the latch member (8) fits. ), and an engaging portion (14b) with one end extending outward in the horizontal direction, and the engaging portion (14b) A wire (W) that is pulled in conjunction with the forward tilting movement of the seatback is connected to the side of 4b). The first walk-in lever (14) has a pin (14c) installed, and the first walk-in lever (14) faces horizontally. The shaft (15) is pivotally connected to the shaft hole (12d) of the vertical piece (12b) of the second support plate (12), and Extends rearward to be located below the engaging part (14b) of the first walk-in lever (14) It has a blocking piece (16b) with a stepped blocking part (16a) formed approximately in the center, and The part extending to the front edge (9b) of the horizontal surface (9a) of the walk-in plate (9) can come into contact with the front edge (9b) of the horizontal surface (9a) of the walk-in plate (9). Almost dog-shaped second walk-in lever (16) with a flexible canceling part (16c) between the first walk-in lever (14) and the second walk-in lever (16). A biasing member (17) is installed, and the biasing member (17) causes the first walk-in lever to move. (14) in the direction of arrow B in Fig. 4, and the second walk-in lever (16) in Fig. 3. The blocking piece (16b) is biased in the direction of arrow C so that the first walk-in rail is moved upward. By engaging the end edge of the engaging portion (14b) of the bar (14) with the blocking portion (16a), the first wall The quin lever (14) is configured to be prevented from rotating in the direction of arrow B.

[0017] This walk-in mechanism (11), as shown in Figure 3, Place the first walk-in lever (14) on the plane (12a) and the second walk-in lever on the vertical piece (12b). With each lever (16) assembled, connect the second support plate (12) from above. Fit the connecting part (8a) of the latch member (8) into the connecting hole (14a), and Attach to the mounting parts (5b) (5c) of the first support plate (5) fixed to the upper piece (4a) of the cable (4). By fastening and fixing parts (12e) and (12f) with bolts (18), the walk shown in Fig. 1 can be achieved. A seat slide equipped with an in mechanism is completed. i.e. walk-in mechanism The second support plate of the walk-in mechanism (11) is attached to a normal seat slide (10) that does not have a By fixing the plate (12) to the first support plate (5) on the upper rail (4). A walk-in seat slide device can be easily formed.

[0018] Next, the operation of the embodiment of the present invention will be explained. When getting into or out of the rear seat, if the seat back is tilted forward, the state shown in Figure 4 will occur. When the wire (W) is pulled in the direction of arrow D, the wire (W) is pulled through the pin (14c). The first walk-in lever (14) rotates clockwise to perform the walk-in operation shown in Figure 5. move to a moving position. With this rotation of the first walk-in lever (14), the connection hole (14a) ) is engaged with the connecting part (8a) of the latch member (8), and the engaging teeth lock the latch (8). At the same time, the engaging part (14b) is rotated to the release position where it separates from the lock (1d), and the engaging part (14b) By moving toward the tip of the second walk-in lever (16), the biasing member (17) in the direction of arrow C, and the blocking part (16a) projects into the movement locus of the engaging part (14b). Enter. As a result, the first walk-in lever (14) is configured such that the engaging portion (14b) is connected to the blocking portion (16). a) to be held in the walk-in operating position, and the latch member (8) It is held in the released position. Therefore, in this condition, raise the seat back and connect the wires. - Even if (W) is loosened, the latch member (8) will remain in the released state and the seat will remain in the helper position. It is moved to the frontmost end by a spring (not shown).

[0019] After getting in and out of the rear seat, return the seat to the rear with the seatback raised. and the standard position set approximately at the longitudinal center of the lower rail (1). 2. The canceling part (16c) of the walk-in lever (16) is connected to the walk-in plate (9). By coming into contact with the front edge (9b), the second walk-in lever (16) is forcibly biased. The blocking part (16a) is rotated against the biasing force of the member (17), and the blocking part (16a) moves along the movement trajectory of the engaging part (14b). By moving out of the trace, the second walk-in lever (14) activates the walk-in operation. The position restraint is released, and the biasing force of the biasing member (17) causes the rotation to return to the original position. child As a result, the latch member (8) is rotated in the engagement direction by the urging force of the torsion bar (7). Then, the latch tooth engages with the lock hole (1d) and the seat is fixed in the standard position.

[0019]

[Effect of the idea]

As described above, the present invention has the following effects. (a) Attach the second support plate equipped with the walk-in mechanism to the first support plate. By attaching the walk-in seat slide, the walk-in seat slide is completed. This makes it possible to share the seat slide with a seat slide that does not have a locking mechanism, and it is easy to assemble. will improve. (b) A second walk-in lever pivotally connected to the second support plate has a downwardly extending cap. Due to the contact relationship between the cancel part and the walk-in plate, , the seat is fixed in the set position, so the walk-in plate is small. It can be made into a mold, and the seat slide can be easily made smaller and lighter.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a walk-in seat slide device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the walk-in mechanism.

FIG. 3 is a perspective view of the walk-in mechanism and the seat slide before the walk-in mechanism is attached to the seat slide.

FIG. 4 is a plan view of essential parts showing the walk-in mechanism in a non-operating position.

FIG. 5 is a plan view of essential parts showing the walk-in mechanism in an operating position.

[Explanation of symbols]

(1) Lower rail (4) Upper rail (4a) upper piece (5) First support plate (5a) support part (5b) (5c) mounting part (6) operation shaft (8) latch member (8a) connection part ( 9) Walk-in plate (10) Seat slide (11) Walk-in mechanism (12) Second support plate (12b) Vertical piece (12d) (12e) Mounting part (13) (15) Axis (14) First walk-in Lever (14a) Connection hole (14b) Engagement part (16) Second walk-in lever (16a) Blocking part (16c) Cancellation part

Claims (1)

[Scope of utility model registration request] [Claim 1] An upper rail fixed to a seat having a seat back that can be tilted forward is slidably fitted to a lower rail fixed to the vehicle body, and fixed to the upper rail side. a seat slide having a latch member pivotably attached to the first support plate that can be engaged with and disengaged from a lock portion formed on the lower rail side to fix the upper rail at an appropriate position; and a seat slide that is fixed on the first support plate. The second support plate having the attachment part has a connection hole that can be engaged with the connection part formed at the upper end of the latch member and an engagement part that extends laterally, in conjunction with the forward tilting movement of the seat back, A first walk-in lever movable to a walk-in operating position for rotating the latch member to an unlocking position is pivoted by a vertically directed shaft and abuts against a side surface of an engaging portion of the first walk-in lever. By being located outside the movement trajectory of the engagement part and moving the first walk-in lever to the walk-in operating position, it enters the movement trajectory of the engagement part and engages with the engagement part to perform the first walk. A blocking part that can restrain the in-lever in the walk-in operating position and a blocking part that extends downward and when the upper rail moves backward by a predetermined amount, come into contact with the walk-in plate provided on the lower rail side, thereby stopping the blocking part. A walk-in mechanism in which a second walk-in lever, which has a canceling part that moves the engaging part out of the movement trajectory and allows the latch member to rotate in the engaging direction, is pivoted by a horizontal axis. A walk-in seat slide device for an automobile, characterized by comprising: