JPH0711433U - Seat slide device for automobile - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to withstand high loads without increasing the thickness of the lock plate and latch. [Structure] A tooth portion 18a of a latch 18 is engaged with a lock plate 7 and a reinforcing member 16 in a penetrating manner, and finally engaged with an engagement hole 3a provided in a side piece 3 of a lower rail 1 arranged inside thereof. Since the movement of the upper rail 8 can be locked by combining them, the latch 18 can be arranged with a small offset amount from the center of the rail, and the latch 18
Since the load acting on the latch plate can be distributed to the two engaging portions of the lock plate 7 and the lower rail 1,
It can withstand high loads with minimal deformation of 18.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an automobile seat slide device having improved lock strength.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, as a vehicle seat slide device, for example, there is one as shown in FIG. This conventional seat slide device is fixed to the floor of an automobile, and is attached to a lower rail (101) to which a lock plate (105) having a plurality of engaging holes (105a) is fixed, and to an engaging hole (105a). An upper rail (102) pivotally mounted with a latch (106) having selectively engageable and disengageable teeth (106a) is slid in the longitudinal direction of the lower rail (101) via a roller (103) and a shoe (104). The bracket (107) and the reinforcing member (108) which are movably fitted and engageable with the tooth portion (106a) of the latch (106) are provided on the upper rail (102) side, and the tooth of the latch (106) is provided. The portion (106a) engages through the hole (107a) formed in the bracket (107) and the engagement hole (106a) of the lock plate (105), and further the hole of the reinforcing member (108). By engaging the portion (108a), the forward and backward movement of the upper rail (102) with respect to the lower rail (101) can be locked.

[0003]

[Problems to be solved by the device]

 However, in the conventional seat slide device as described above, since the reinforcing member (108) is interposed between the side piece (101a) of the lower rail (101) and the lock plate (105), Inevitably, the latch (106) is attached to the upper rail (108) and the lower rail (101) with a large deviation from the center (W) of the upper rail (108), and the seat belt connected to the upper rail (102). There is a problem that the latch (106) engaged with the lock plate (105) is significantly deformed in response to the input of a load from, and the lock strength is reduced.

In view of the above problems, the present invention provides a vehicle seat slide device capable of withstanding a high load without increasing the plate thickness of the lock plate, the latch, and the like. Has an aim.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the device of the present invention slidably fits an upper rail fixed to a seat side to a lower rail fixed to a floor side of a vehicle body, and a lower rail of a lower rail is attached to the upper rail side. In a vehicle seat slide device in which a latch having a tooth portion capable of selectively engaging with an engagement hole formed in a side piece to prevent movement of the upper rail with respect to the lower rail is pivotally mounted, a side of the lower rail is provided. A lock plate with a plurality of lock holes through which the teeth of the latch penetrate is provided on one side of the piece, and the lock plate is arranged on the upper rail between the side piece of the lower rail and the lock plate, and It is characterized in that a reinforcing member is provided with a reinforcing hole through which the tooth portion of the member engages.

[0006]

[Action]

 Lock the movement of the upper rail by engaging the teeth of the latch with the lock plate and the reinforcing member, and finally engaging with the engaging holes provided in the side pieces of the lower rail located inside thereof. Therefore, the latch can be arranged with a small offset amount from the center of the lower rail and the upper rail, and the load acting on the latch can be distributed to the two engaging portions of the lock plate and the lower rail. Therefore, deformation of the latch can be minimized and high load can be withstood.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. (1) is a lower rail having a substantially U-shaped cross section that is fixed to the floor of an automobile, and the ends of the left and right side pieces (3) standing up from both sides of the base piece (2), which is substantially horizontal, are mutually An upper piece (4) extending toward the direction is formed, and a hanging piece (5) is formed at the inner end of the upper piece (4). A plurality of rectangular engaging holes (3a) are formed in the one side piece (3) at regular intervals in the longitudinal direction.

On the bottom surface of the base piece (2) of the lower rail (1), there is formed a standing piece (7a) which is bent in an L shape and stands up parallel to the side piece (3) at a predetermined interval. The plate (7) is fixed, and the standing piece (7a) has a plurality of lock holes (7b) formed at the same intervals as the engaging holes (3a).

Mounting brackets (6) and (6) are fixed to the front and rear ends of the lower rail (1) by welding or the like, and the mounting brackets (6) and (6) are secured with appropriate bolts and nuts (not shown). By being fixed to the floor of the vehicle body, the lower rail (1) is attached to the floor of the vehicle body with its longitudinal direction oriented in the longitudinal direction of the vehicle body.

Reference numeral (8) is a substantially reversely slidably fitted in the longitudinal direction via a pair of front and rear rollers (9) and a pair of left and right balls (10) installed in the lower rail (1). With the T-shaped upper rail, the base piece (11) protruding upward between the upper pieces (4) of the lower rail (1) and the lower end of the base piece (11) is connected to the base piece of the lower rail (1). It is composed of a lower piece (12) extending in parallel to the piece (2) and extending toward both sides, and a standing piece (13) standing upright from the tip of the lower piece (12). The upper rail (8) holds the seat movably in the front and rear directions by attaching the base piece (11) to the lower portion of the seat cushion (not shown) with bolts or the like.

Reference numeral (16) is a reinforcing member in which the base portion (16 a) is fixed to the side surface of the base piece (11) substantially in the longitudinal direction of the upper rail (8) by a bolt (15), and the base portion (16 a) Reinforcing piece () extending downward from the tip of the extension piece (16b) extending laterally from the side piece (3) of the lower rail (1) and the standing piece (7a) of the lock plate (7). 16c) is formed, and a plurality of (three in the embodiment) rectangular reinforcing holes (16d) are formed in the front and rear of the reinforcing piece (16c). To the extension piece (16b) of the reinforcing member (16), a bracket (17) having a front and rear support portion (17a) formed in a cylindrical shape at the tip is fixed, and the support portion (17a) is provided with a front portion. An operating shaft (14), which has a handle (14a) and is substantially parallel to the upper rail (8), is rotatably pivotally mounted, and a spring (19) is provided at the rear end of the operating shaft (14). Is locked to urge the operating shaft (14) clockwise in FIG.

Reference numeral (18) is a latch fixed to the operation shaft (14) between the support portions (17a) and (17a) of the bracket (17), and a plurality of tooth portions (18a) provided at the lower end are The urging force of the spring (19) penetrates the lock hole (7b) of the lock plate (7) and the reinforcing hole (16d) of the reinforcing plate (16) to engage the engaging hole (3a) of the lower rail (1). By engaging with, the movement of the upper rail (8) with respect to the lower rail (1) in the longitudinal direction can be prevented, and the seat can be fixed at a desired position. Further, by operating the handle (14a), the operation shaft (14) is rotated counterclockwise (in FIG. 2) against the biasing force of the spring (19), and the teeth (18a) are engaged. (3a), the reinforcing hole (16d), and the lock hole (7b) are separated from each other, so that the upper rail (8) can freely move back and forth to adjust and move the seat back and forth.

The tooth portion (18a) of the latch (18) is engaged with the lock hole (7b) of the lock plate (7) and the reinforcing hole (16d) of the reinforcing member (16) in a penetrating manner, and further disposed inside thereof. Since it is possible to lock the movement of the upper rail (8) by finally engaging with the engaging hole (3a) of the lower rail (1), the latch (18) is attached to the lower rail (1) and the upper rail (1). It can be arranged with a small amount of offset from the center (W) of the rail (8), and the load acting on the latch (18) can be applied to the two engaging portions of the lock plate (7) and the lower rail (1). As they can be distributed, the deformation of the latch (18) can be minimized to withstand high loads.

FIG. 3 shows another embodiment of the present invention. In this embodiment, a reinforcing member (16) fixed to the above-mentioned upper rail (8) is formed with a reinforcing portion (16c) having a reinforcing hole (16d) and a latch (18) is fixed. The support portion (16e) supporting the operation shaft (14) is integrally formed to simplify the structure, and the deformation of the latch (18) is suppressed to the minimum as in the above embodiment. Can withstand high loads.

[0015]

As described above, according to the present invention, the latch pivotally attached to the upper rail penetrates the lock hole of the lock plate provided on the lower rail side, and further, the reinforcing member provided on the upper rail side. Also, since it engages with the engagement hole of the lower rail, the latch can be arranged with a small offset amount from the center of the rail, so the size can be reduced and the lock strength can be improved without increasing the plate thickness. Can be planned.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view taken along the line II-II in FIG.

FIG. 3 is a perspective view of an essential part of another embodiment of the present invention.

FIG. 4 is a vertical sectional view of a conventional seat slide device.

[Explanation of symbols]

 (1) Lower rail (3) Side piece (3a) Engagement hole (7) Lock plate (7a) Standing piece (7b) Lock hole (8) Upper rail (16) Reinforcing member (16d) Reinforcing hole (18) Latch ( 18a) Teeth

Claims (1)

[Scope of utility model registration request] 1. An upper rail fixed to a seat side is slidably fitted to a lower rail fixed to a floor side of a vehicle body, and an engagement is provided on a side piece of the lower rail on the upper rail side. In a vehicle seat slide device comprising a latch having a tooth portion capable of selectively engaging with the hole and preventing movement of the upper rail with respect to the lower rail, a latch tooth is provided on a side of a side piece of the lower rail. A lock plate is provided with a plurality of lock holes through which the parts engage with each other, and the reinforcement is disposed on the upper rail between the side piece of the lower rail and the lock plate, and the teeth of the latch engage with each other through the reinforcement. A seat slide device for an automobile, comprising: a reinforcing member having holes formed therein.