JPH04124528U - Automotive walk-in seat slide device - Google Patents

Abstract

(57) [Summary] [Purpose] To enable common use and improve assembly work efficiency. [Structure] The second support plate (12) has a connecting hole (14a) into which the connecting part (8a) of the latch member fits, a guide groove (15) consisting of a missing part (15a) and an engaging part (15b). ), a first walk-in lever (14) is formed at the end that is linked to the forward tilting movement of the seat back, and an engagement protrusion (18) that slidably engages the guide groove (15) at one end. and a second walk-in lever (17) having a canceling part (17b) formed at the other end that can come into contact with the walk-in plate (9), are pivotally connected by shafts facing in the vertical direction. , a walk-in mechanism (11) is formed, which is attached to a normal seat slide (10) without a walk-in mechanism, and the second support plate (12) of the walk-in mechanism (11) is attached to the upper rail (4). 1st support plate
By fixing to (5), a walk-in seat slide device can be easily 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 A lock holding lever with an auxiliary lever that forms a locking mechanism is rotatably mounted. When the seatback is folded forward, the lock retention lever is released via the lever member. Release the engagement of the lock claw with the protrusion and move the seat to the frontmost position. That and that The auxiliary lever rides on the holding plate and holds the lock claw in the released state. Ru. After that, raise the seat back and move the seat back to the holding plate. If the holding lever is riding on the holding lever, rotate the lock claw at the position where it is released from the holding lever. By releasing, the lock pawl engages the lock plate and the seat is placed in the standard position. can be fixed to.

0003

[Problem that the idea aims to solve]

However, conventional devices such as those described above have a walk-in mechanism (auxiliary lever and The lock retention lever) is mounted on the handle shaft together with the lock pawl. Therefore, the hand The configuration around the seat slide is significantly different, making it difficult to share it with a normal seat slide. Ru. In addition, in order to achieve common use, a configuration without a walk-in mechanism, that is, an auxiliary By assembling only the lock pawl to the operating shaft, excluding the lever and lock retention lever. Although it is possible, there are differences between those with and without walk-in mechanisms. The problem is that the assembly work is different, resulting in poor workability and increased 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]

To achieve the above object, the device of the present invention includes a seat back that can be tilted forward. The upper rail fixed to the seat can slide freely onto the lower rail fixed to the vehicle body. and the first support plate fixed to the upper rail side, and the lower rail side to the first support plate fixed to the upper rail side. A latch that can be engaged and detached from the formed lock part to fix the upper rail in an appropriate position. A seat slide with pivoted parts, A sheet is attached to a second support plate having a mounting portion fixed on the first support plate. By moving to the walk-in operating position in conjunction with the forward tilting movement of the back, the latch The latch member is rotated to the unlocked position by engaging the connecting part formed at the upper end of the latch member. a connecting hole, an arc-shaped missing part, and an engagement extending radially from one end of the missing part. a first walk-in lever formed with a substantially L-shaped guide groove having a guide groove; The first walk-in lever is slidably fitted into the groove and moved to the walk-in operating position. By moving the first walk-in lever, it engages with the engaging part of the guide groove and moves the first walk-in lever. The engagement protrusion and upper rail that can be restrained in the actuation position have moved backward by a predetermined amount. By coming into contact with the walk-in plate provided on the lower rail side, The engagement between the engagement protrusion and the engagement portion is released and the latch member is rotated to the engagement position. a second wall having a canceling part that allows the upper rail to be fixed in a predetermined position; A walk-in mechanism in which the quin lever is pivotally connected to the quin lever by shafts facing up and down, respectively. and, It is characterized by having the following.

[0006]

[Effect] The walk-in mechanism includes a link in which a connecting portion of the latch member fits into the second support plate. A guide groove consisting of a connecting hole, an arc-shaped missing part and an engaging part extending in the radial direction is shaped. and a first walk-in lever connected to the forward tilting movement of the seat back at the end thereof. - has an engaging protrusion on one end that slidably engages with the guide groove, and a walk-in on the other end. a second walk-in lever formed with a canceling portion that can come into contact with the plate; They are each formed by being pivotally connected by shafts facing in the vertical direction.

[0007] The second support plate of this walk-in mechanism is connected to the second walk-in lever. Fit the connection part of the latch member on the seat slide side into the hole, and then The walk-in mechanism is fixed to the first support plate fixed to the wheel. The equipped seat slide is completed. In other words, it does not have a walk-in mechanism. The second support plate of the walk-in mechanism is attached to the upper lever of a normal seat slide. Easy to install walk-in seats by fixing them to the first support plate on the floor. A ride device is formed so that it can be used in common with a normal seat slide.

[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, the upper rail (4) is biased in the engagement direction (direction of arrow A in FIG. 1). An operating shaft (6) parallel to is pivotally mounted. Between both support parts (5a) of the first support plate (5) A latch member (8) is fixed to the operating shaft (6) of A latch tooth (not shown) that can be engaged and detached from the lock hole (1d) drilled in the side piece (1c) of the array (1) ), and a connecting portion (8a) extending upward is formed at the upper end. latch part By engaging the latch teeth of the material (8) with the lock hole (1d), the upper rail (4) is locked. The seat is fixed in that position by locking the back and forth movement relative to the lower rail (1), and Rotate the operating shaft (6) in the release direction by operating the handle (6a) to lock the latch teeth. By removing it from the hole (1d), the upper rail (4) is attached to the lower rail (1). The seat can be moved freely back and forth to any desired position.

0012 (9) is a walk-in plate fixed to the base piece (1a) of the lower rail (1). Along one side piece (4b) of the upper rail (4) from approximately the center in the longitudinal direction to the rear. An upright release wall (9a) is formed.

[0013] With the above configuration, the lower rail (1) can be accessed by operating the handle (6a). You can freely move the upper rail (4) back and forth, or move the upper rail (4) to a specified position. Normally, the seat can be adjusted and moved to any position by locking it in place. The seat slide (10) is configured.

[0014] (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.

[0015] As shown in FIG. 2, the walk-in mechanism (11) has an almost triangular shape as a whole, An arc-shaped long hole (12a) and circular shaft holes (12b) (12c) are formed almost in the center, and Attachment parts (12d) (12e) fixed to the attachment parts (5b) (5c) of the first support plate (5) are formed on the The second support plate (12) and the vertically facing shaft (13) The shaft (13) is pivotally connected to the shaft hole (12c) of (12), and the connecting portion (8a) of the latch member (8) fits therein. An arc-shaped connecting hole (14a) centered on the shaft (13), an arc-shaped missing part (15a) centered on the shaft (13), and a hollow A substantially L-shaped plan consisting of an engaging part (15b) extending radially outward from one end of the swinging part (15a). An inner groove (15) is formed at the end and is pulled in conjunction with the forward tilting movement of the seat back. It has a seat back connection part (14c) with a pin (14b) to which the wire (W) is connected. a first walk-in lever (14) that faces vertically through an elongated hole (17a); is pivotally connected to the shaft hole (12b) of the second support plate (12), and has a long hole (12a) at one end. Then, an engaging protrusion (18) that slidably fits into the guide groove (15) is planted, and a walk-in protrusion is installed at the other end. A canceling part (17b) that can come into contact with the front edge (9b) of the releasing wall (9a) of the canceling plate (9) is formed. the second walk-in lever (17), the first walk-in lever (14) and the second walk-in lever (17) - The first walk-in lever (17) is installed between the first walk-in lever (17) and the first walk-in lever (17) in 4) clockwise and the second walk-in lever (17) counterclockwise. It is composed of a member (19).

[0016] This walk-in mechanism (11) is connected to the second support plate (12) as shown in Figure 3. With the first and second walk-in levers (14) and (17) assembled on a flat surface, remove the second support plate. Fit the connecting part (8a) of the latch member (8) into the connecting hole (14a) of the plate (12) from above. and the first support plate (5) fixed to the upper piece (4a) of the upper rail (4). By fastening and fixing the mounting parts (12d) (12e) to the mounting parts (5b) (5c) of the As a result, a seat slide equipped with a walk-in mechanism shown in FIG. 1 is completed. sand In other words, as mentioned above, the normal seat slide (10) that does not have a walk-in mechanism The second support plate (12) of the walk-in mechanism (11) configured in 4) Easy walk-in seating by fixing to the first support plate (5) on the top. A slide device is formed. Also, in that case, all parts are placed on the same plane. It can be easily assembled.

[0017] 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 6 will occur. When the wire (W) is pulled in the direction of arrow B, the wire (W) is pulled through the pin (14b). The first walk-in lever (14) rotates clockwise and becomes the state shown in Figure 5. . As the first walk-in lever (14) rotates, the edge of the connecting hole (14a) latches. The engaging teeth of the latch (8) are engaged with the connecting portion (8a) of the member (8) and disengaged from the lock hole (1d). At the same time, the second wall is rotated to the release position where the - The engagement protrusion (18) provided on the in-lever (17) moves toward the engagement part (15b). As a result, the second walk-in lever (17) is activated by the biasing means (19) as shown in FIG. The engaging protrusion (18) engages in the engaging portion (15b) by rotating clockwise. This results in , the first walk-in lever (14) is held in the walk-in operating position, and The latch member (8) is held in the released position. Therefore, in this state, the seat back Even if the wire (W) is loosened by raising the The seat is moved to the forefront by a helper spring (not shown).

[0018] After getting in and out of the rear seat, return the seat to the rear with the seatback raised. As shown in Figure 4, the lower rail (1) is set at approximately the center position in the longitudinal direction. The canceling part (17b) of the second walk-in lever (17) is in the standard position By contacting the front edge (9b) of the in-plate (9), the second The walk-in lever (17) is forcibly rotated counterclockwise from the walk-in activation position. The engaging protrusion (18) moves within the engaging portion (15b) toward the missed portion (15a). . Then, the engagement between the engagement protrusion (18) and the engagement part (15a) is released, and the first walk The lever (14) can now be rotated clockwise, and the latch member (8) is attached to the torsion bar. - (7) rotates in the engagement direction, and the latch tooth engages with the lock hole (1d). The seat will be fixed in the standard position.

[0019]

[Effect of the idea]

As described above, the present invention has the following effects. (a) The second support plate of the walk-in mechanism is By mounting on the first support plate of a conventional seat slide device, the Since the quin seat slide device is completed, it can be used in common with regular seat slides. can be easily achieved, improving assembly workability. (b) All walk-in mechanisms are installed on the same plane, with guide grooves and engagement protrusions. Walk-in operation is possible due to the engagement and disengagement relationship with the Walk-in operation can be performed reliably, and it is easy to assemble and can be easily miniaturized. It can be done.

[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 a state in which the second walk-in lever is in contact with the walk-in plate.

FIG. 5 is a plan view of the main parts during walk-in operation.

FIG. 6 shows a plan view of essential parts when not in operation.

[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 (12d) (12e) Mounting part (14) First walk-in lever (14a) Connection hole (15) Guide groove ( 15a) Air vibration part (15b) Engagement part (17) Second walk-in lever (17b) Cancellation part (18) Engagement protrusion

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 the upper rail is 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. A second support plate having a mounting portion is moved to a walk-in operating position in conjunction with the forward tilting movement of the seatback, thereby engaging a connecting portion formed at the upper end of the latch member and unlocking the latch member. a first walk-in lever in which a substantially L-shaped guide groove having a connecting hole for rotating the lever to the position, an arc-shaped missing part, and an engaging part extending radially from one end of the missing part; When the first walk-in lever is slidably fitted and moved to the walk-in operating position, it can be engaged with the engaging portion of the guide groove and restrained in the walk-in operating position. When the engagement protrusion and the upper rail move backward by a predetermined amount, they come into contact with a walk-in plate provided on the lower rail side, thereby releasing the engagement between the engagement protrusion and the engagement portion and latching. a second walk-in lever having a canceling portion that allows the member to rotate to the engagement position and fix the upper rail in a predetermined position;
A walk-in seat slide device for an automobile, comprising: a walk-in mechanism pivotally connected by shafts facing in the vertical direction.