JP5340679B2 - Seat slide device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a spring 3 from making a strange sound by touching with an upper rail 2 so as to smoothly unlock in a seat sliding device which locks a seat with the spring 3. <P>SOLUTION: A lock mechanism includes: a through-hole 201a for locking formed in a first standing plate 201 of the upper rail 2; a through-hole 202a for an operation section formed in a second standing plate 202; an engagement tooth 13a at a lower end rim of a downwardly hanging section 13 of the lower rail 1; a base section 30; an engagement section 31; and an operation section 36. The base section 30 is sandwiched by the standing plates 201, 202. The operation section 36 is led out of the rail through the through-hole 202a for the operation section. The engagement section 31 has a locking member 3 which can engage/disengage with/from the engagement tooth 13a through the through-hole 201a for locking. The engagement section 31 is engaged with the engagement tooth 13a with a spring force of the locking member 3 so as to lock. The operation section 36 is operated against the spring force, and the engagement section is disengaged from the engagement tooth 13a so as to unlock. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a seat slide device that has an upper rail movably supported on a lower rail, and has a lock mechanism associated with the upper rail and the lower rail, and locks the upper rail in a movement-inhibited state by the lock mechanism.

  There is a demand for a smaller and lighter seat slide device. One technique that can meet this requirement is to use a spring formed by bending a linear elastic body as a lock member, thereby reducing the number of parts and achieving a reduction in size and weight. it can.

5 (a) and 5 (b) show a conventional seat slide device using a spring 3p formed by bending a linear elastic body as a lock member. (A) is a front view, (b) is a plan view.
Both ends 30cp and 30cp of the spring 3p are supported by the standing plate 20p of the upper rail 2p. For unlocking, the spring 3p is pushed down against the spring force, and the engaging portion 31p protruding from the spring 3p toward the lower rail 1p is engaged with the engaging teeth formed on the lower end surface of the lower portion 13p of the lower rail 1p. It is performed by separating from 13ap. Locking is performed by eliminating the push-down of the spring 3p and returning the engagement portion 31p to the engagement state with the engagement teeth 13ap by the spring force of the spring 3p.
As a conventional seat slide device, the following Patent Document 1 can be cited.
Japanese Patent Laid-Open No. 7-195964.

  In the seat slide device shown in FIG. 5, since the spring 3p is only supported at both end portions 30cp and 30cp by the upright plate portion 20p of the upper rail 2p, an imaginary straight line passing through the both end portions 30cp and 30cp is formed. As a rotation axis, it is possible to shift in the rotation direction although it is slightly. For this reason, there is a problem that the spring 3p abuts against the plate surface of the upright plate portion 20p due to vibrations of the automobile and generates abnormal noise, or the engagement portion 31p of the spring 3p is detached from the engagement teeth 13ap on the lower rail 1p side. Even if the spring 3p is pushed down to release the lock, there is a problem that it is difficult to push down smoothly.

In the seat slide device using a spring made of a linear elastic body as a lock member in order to meet the demand for miniaturization and weight reduction, the present invention has a problem that the spring abuts against the upper rail and generates noise. The purpose is to eliminate the problem that the unlocking operation cannot be performed smoothly.
Moreover, it aims at achieving further size reduction and weight reduction.

  The present invention is configured as the following [1] to [6]. In addition, the code | symbol attached | subjected in this term (means for solving a subject) and the following term (effect of invention) is for understanding easily, and is not the meaning which limits this invention to the structure of a code | symbol.

[1] Configuration 1:
A seat slide device that is configured to support the upper rail 2 on the lower rail 1 so as to be movable, and has a lock mechanism associated with the upper rail 2 and the lower rail 1, and locks the upper rail 2 in a movement-inhibited state by the lock mechanism. There,
The lower rail 1 includes a bottom wall portion 10 forming a rail bottom portion, a side wall portion 11 erected upward from one edge of the bottom wall portion 10, and an inner side extending in the rail width direction from the upper end of the side wall portion 11. A ceiling wall portion 12 and a hanging portion 13 suspended from the tip of the ceiling wall portion 12;
The upper rail 2 includes a standing portion 20 for supporting the sheet at the top with two parallel upright plate 201, 202 provided vertically, one of the two parallel vertical plates of the upstanding plate portion 20 a bottom plate portion 21 which extends from the lower end to the side wall portion 11 side of the lower rail 1, the side wall 11 and top wall 12 of the tip erected from the front end of the bottom plate portion 21 upward the lower rail 1 A side plate portion 22 positioned in a groove formed by the hanging portion 13,
The locking mechanism is
And locking holes 201a formed in the hand of the two parallel vertical plate of the vertical plate portions,
A through hole 202a for operation portion formed on the other side of the two parallel vertical plate of the vertical plate portions,
Engaging teeth 13a formed by cutting out the lower end edge of the hanging part 13 in a concavo-convex shape;
A linear elastic body is bent and formed to have a base 30, an engaging portion 31 protruding from the base 30, and an operation portion 36 protruding from the base 30 to the opposite side of the engaging portion 31. The base 30 is sandwiched between the two standing plates 201, 202, the operating portion 36 is led out of the rail through the operating portion through hole 202a, and the engaging portion 31 is used for the locking. A locking member 3 that can be engaged / disengaged with the engaging teeth 13a through the through hole 201a;
The engaging portion 31 is engaged with the engaging teeth 13a by the elastic force of the lock member 3 to lock the upper rail 2 in the movement-inhibited state, and the operating portion 36 is operated against the elastic force to A seat slide device, wherein the lock is released by releasing the engagement tooth 13a.

[2] Configuration 2:
In configuration 1,
A holding part 201b for supporting the lock member 3 made of a linear elastic body is cut and raised on one of the two parallel standing boards 201/202 of the standing board part 20,
The lock member 3 has the end portions 30c and 30c of the base portion 30 engaged with the holding portion 201b.
A seat slide device characterized by that.

[3] Configuration 3:
In Configuration 1 or Configuration 2,
The lower rail 1 further includes a second side wall portion 16 erected from the other edge of the bottom wall portion 10, and the height of the second side wall portion 16 is higher than the height of the operation portion through hole 202a. Set low,
A seat slide device characterized by that.

[4] Configuration 4:
In any of Configuration 1 to Configuration 3,
The locking mechanism further includes an engagement receiving hole 22a formed through the side plate portion 22,
The locking member 3 is configured such that the engaging portion 31 can be engaged / disengaged with the engaging teeth 13a through the locking through-hole 201a, and the front end of the engaging portion 31 is connected to the engaging receiving hole 22a. Locked,
A seat slide device characterized by that.

[5] Configuration 5:
In configuration 4,
The locking through hole 201a formed in the one standing plate and the engagement receiving hole 22a formed in the side plate portion 22 are provided so as to hang from the inner surface of each through hole upper wall portion into the through hole 201a / 22a. Having tongues 201aa / 22aa formed,
A seat slide device characterized by that.

[6] Configuration 6:
In configuration 3 ,
The lower rail 1 includes a second ceiling wall portion 17 extending from the front end of the second side wall portion 16 to the inner side in the rail width direction at a height lower than the operation portion through hole 202a, and the second ceiling wall portion. And a second drooping part 18 that hangs down from the tip of 17,
The upper rail 2, the second extending from the other lower end of the two parallel upright narrower than the bottom plate portion 21 to the second side wall portion 16 side of the lower rail 1 of the standing portion A bottom plate portion 26, and a groove that is erected upward from the tip of the second bottom plate portion 26, and whose tip is constituted by the second side wall portion 16, the second top wall portion 17, and the second hanging portion 18 of the lower rail 1. A second side plate portion 27 positioned in the interior;
A seat slide device characterized by that.

The configuration 1 includes an upper rail 2 that is movably supported on the lower rail 1, and has a lock mechanism associated with the upper rail 2 and the lower rail 1, and the upper rail 2 is locked in a movement-inhibited state by the lock mechanism. In the seat slide device, the lower rail 1 includes a bottom wall portion 10 forming a rail bottom portion, a side wall portion 11 standing upward from one edge of the bottom wall portion 10, and an upper end of the side wall portion 11. The upper rail 2 has a ceiling wall portion 12 extending inward in the rail width direction and a hanging portion 13 suspended from the tip of the ceiling wall portion 12. a vertical plate portion 20 for supporting the sheet at the top with a plate 201, 202 is extended from one of the lower ends of two parallel vertical plates of the upstanding plate portion 20 to the side wall 11 side of the lower rail 1 Bottom plate portion 21 and the bottom plate portion 1 has a side plate portion 22 that is erected upward from the tip end of 1 and that is positioned in a groove formed by the side wall portion 11, the top wall portion 12, and the hanging portion 13 of the lower rail 1, and the locking mechanism , said a two through-lock formed hand parallel upright holes 201a of the upright plate portion, for operation portion formed on the other side of the parallel upright plate two of the standing portion The through-hole 202a, the engaging tooth 13a formed by cutting out the lower end edge of the hanging part 13 in a concavo-convex shape, the base 30, the engaging part 31 protruding from the base 30, and the engaging part 31 The linear elastic body is bent so as to have the operation portion 36 protruding from the base 30 to the opposite side, and the base 30 is sandwiched between the two standing plates 201 and 202, The operation portion 36 is led out of the rail through the operation portion through hole 202a, and the engagement portion 1 has a lock member 3 that can be engaged / disengaged with the engagement tooth 13a through the lock through hole 201a, and the engagement portion 31 is moved to the engagement tooth 13a by the elastic force of the lock member 3. The upper rail 2 is locked in a movement-inhibited state by being engaged, and unlocked by operating the operating portion 36 against the elastic force and releasing it from the engaging teeth 13a. Since it is a slide device, it is possible to eliminate the trouble that the lock member (spring) 3 abuts against the upper rail 2 and generates abnormal noise, and the trouble that the unlocking operation cannot be performed smoothly, and further miniaturization. And weight reduction can be achieved.

  In the configuration 2, in the configuration 1, any one of two parallel standing plates of the standing plate portion 20 201/202 has a holding portion for supporting the lock member 3 made of the linear elastic body. 201b is formed by cutting and raising, and the lock member 3 is a seat slide device characterized in that the end portions 30c and 30c of the base portion 30 are locked to the holding portion 201b. In addition to this effect, there is an effect that the operation of attaching the lock member 3 to the standing plate portion 20 of the upper rail 2 becomes easy.

  According to Configuration 3, in Configuration 1 or Configuration 2, the lower rail 1 further includes a second side wall portion 16 erected from the other edge of the bottom wall portion 10, and a height of the second side wall portion 16 is increased. Since the seat slide device is characterized in that the height is set lower than the height of the operation portion through hole 202a, the vicinity of the operation portion through hole 202a is open. For this reason, in addition to the effects of configurations 1 and 2, for example, there is an effect that a space for a member to be connected to the operation unit 36 led out from the operation unit through-hole 202a can be increased.

  In Configuration 4, in any one of Configurations 1 to 3, the lock mechanism further includes an engagement receiving hole 22a formed through the side plate portion 22, and the lock member 3 includes the engagement portion. 31 can be engaged / disengaged with the engaging teeth 13a through the locking through-hole 201a, and the tip of the engaging portion 31 is engaged with the engaging receiving hole 22a. In addition to the effects of the first to third configurations, the engaging portion 31 can be locked at three points on the upper rail side, the lower rail side, and the upper rail side, and the locking can be reliably performed. There is an effect that can.

  In the configuration 5, in the configuration 4, the lock through hole 201a formed in the one upright plate and the engagement receiving hole 22a formed in the side plate portion 22 are penetrated from the inner surface of each through hole upper wall portion. Since the seat slide device has a tongue-shaped portion 201aa / 22aa provided so as to hang down into the hole 201a / 22a, in addition to the effect of the configuration 4, the engagement protrusion 31 is provided on the upper rail side. A part of the function of locking at the three points on the lower rail side and the upper rail side can be performed by the tongue portions 201aa and 22aa, and there is an effect that the locking can be performed more reliably.

According to Configuration 6, in the Configuration 3, the lower rail 1 extends from the tip of the second side wall portion 16 to the inner side in the rail width direction at a height lower than the operation portion through hole 202a. Part 17 and a second hanging part 18 suspended from the tip of the second ceiling wall part 17, and the upper rail 2 is below the other of the two parallel standing plates of the standing plate part. A second bottom plate portion 26 extending narrower than the bottom plate portion 21 from the end toward the second side wall portion 16 side of the lower rail 1, and standing up from the tip of the second bottom plate portion 26. A seat slide device further comprising a second side plate portion 27 positioned in a groove formed by the second side wall portion 16, the second top wall portion 17, and the second hanging portion 18 of the lower rail 1. Therefore, in addition to the effects of configurations 3 to 5, the strength of the seat slide device can be improved. There is a result.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view of the seat slide device according to the embodiment cut along a lock mechanism (a cross-sectional view cut along a plane perpendicular to the rail), and FIG. 2 is a lock member (spring) 3 used in the seat slide device of FIG. A plan view (a) and a front view (b), FIG. 3 (a) is a view taken along the line AA in FIG. 1 (viewed through the second standing plate 202 from the right side of FIG. 1), (B) is a perspective view of the lock member (spring) 3, and FIG. 4 is an outline of a portion taken along line AA in FIG. 1 (a portion seen through the second standing plate 202 from the right side of FIG. 1). It is the figure which drew as a perspective view.

The illustrated seat slide device has an upper rail in a space (grooved space) surrounded by a bottom wall portion 10 of the lower rail 1 and two side wall portions (side wall portion 11 and second side wall portion 16) standing from the edge thereof. 2 is a device that accommodates the lower part of 2 and supports it so as to be movable in the rail direction. In order to enable this movement, rollers and balls (both not shown) are interposed in the gap between the upper rail 2 and the lower rail 1. Since it is well known that a roller or a ball is appropriately interposed in the gap between the upper rail 2 and the lower rail 1, illustration and description thereof are omitted.
In addition, in the illustrated seat slide device, a lock mechanism (described later) is provided in association with the upper rail 2 and the lower rail 1, so that the movement of the upper rail 2 can be stopped and locked at a desired position. It is possible.

  The lower rail 1 is installed in parallel with the floor surface and forms a bottom wall portion 10 that forms the bottom of the rail, a side wall portion 11 that stands vertically from one edge of the bottom wall portion 10, and an upper edge of the side wall portion 11. It has a ceiling wall portion 12 that is bent and extended inward in the 90-degree rail width direction, and a hanging portion 13 that is bent downward from the tip of the ceiling wall portion 12 by approximately 90 degrees.

Further, the lower rail 1 is bent at an obtuse angle from the other edge of the bottom wall portion 10 at an obtuse angle, and the maximum height is from the through hole 202a for the operation portion of the second standing plate 202 of the standing plate portion 20 of the upper rail 2 described below. The second side wall portion 16 extended so as to be lowered, and the upper side of the second side wall portion 16 is bent approximately 90 degrees so that its maximum height is lower than the operation portion through hole 202a, and obliquely upward in the rail width direction. A second ceiling wall portion 17 extending to the bottom wall portion 10 and a second hanging portion 18 that is bent approximately 90 degrees from the tip of the second ceiling wall portion 17 and extends to the bottom wall portion 10 side.
The lower rail 1 composed of these parts can be manufactured, for example, by bending a single metal plate.

The upper rail 2 is provided with two parallel standing plates 201 and 202 provided vertically, and a standing plate portion 20 that supports a sheet at an upper portion, and one standing plate (first standing plate) 201 of the standing plate portion 20. A bottom plate portion 21 that is bent and extended from the lower end of the lower rail 1 toward the side wall portion 11 side by approximately 90 degrees, and is bent upward by approximately 90 degrees from the front end of the bottom plate portion 21 and the front end thereof is a side wall of the lower rail 1. And a side plate portion 22 that is located in a groove formed by the portion 11, the top wall portion 12, and the hanging portion 13, and whose tip portion is bent obliquely upward.
Here, the standing plate portion 20 is formed by joining a first standing plate 201 having a stepped portion 2010 and a second standing plate 202 having a stepped portion 2020 with the upper portions of both stepped portions 2010 and 2020 being overlapped. The base 30 of the lock member (described later) 3 is sandwiched between the compatible plates 201 and 202 as described later.

Further, the upper rail 2 is bent by about 90 degrees from the lower end of the other upright plate (second upright plate) 202 toward the second side wall portion 16 side of the lower rail 1 and extends narrower than the bottom plate portion 21. 2 bottom plate portion 26, and the bottom plate portion 26 is erected at an obtuse angle obliquely upward from the front end of the second bottom plate portion 26, and the front ends thereof are the second side wall portion 16, the second top wall portion 17, and the second hanging portion 18 of the lower rail 1. It further has the 2nd side board part 27 located in the groove | channel comprised by these.
The side of the first standing plate 201 and the side of the second standing plate 202 of the upper rail 2 constituted by these parts can be manufactured, for example, by bending a single metal plate. Instead of this, for example, one plate material may be bent and bent into a U-shaped cross section at the upper part in FIG.

  Since the upper rail 2 and the lower rail 1 are configured in this way, a virtual surface (a joint surface at the upper part of the first standing plate 201 and the second standing plate 202) extending the standing plate portion 20 of the upper rail 2 downward. 1), the bottom wall portion 10 of the lower rail 1 is arranged so that the width of the lower portion of the bottom plate portion 21 is wider than the width of the lower portion of the second bottom plate portion 26. To divide. In other words, the portion on the right side from the boundary of the upright plate portion 20 in FIG. 1 is configured to be smaller than the left portion, and is lightweight.

The locking mechanism includes a locking through hole 201 a formed in the first standing plate 201 of the upper rail 2, an operation portion through hole 202 a formed in the second standing plate 202 of the upper rail 2, and a hanging portion of the lower rail 1. 13 is a lock formed by bending and forming an engagement tooth 13a formed by notching the lower end edge of 13 in an uneven shape, an engagement receiving hole 22a formed through the side plate portion 22 of the upper rail 2, and a linear elastic body. And a member (spring) 3.

Here, the lock member 3 includes a base 30, an engaging portion 31 protruding from the base 30, and an operation portion 36 protruding from the base 30 to the opposite side of the engaging portion 31. The upper rail 2 is sandwiched between the first standing plate 201 and the second standing plate 202. That is, holding portions 201b and 201b are formed at two locations on the first standing plate 201 by being cut and raised toward the second standing plate 202, respectively, and linear holding members are formed on the holding portions 201b and 201b. 3 end portions 30c, 30c are locked. Note that the holding portion may be formed not on the first standing plate 201 but on the second standing plate 202. In that case, a slight design change is required for the shape of the lock member (the degree of protrusion of the engaging portion and the operation portion, etc.) so as to conform to the design change.

The operation portion 36 of the lock member 3 is led out of the rail through the operation portion through hole 202a of the second upright plate 202. A member such as a lock release handle (not shown) is linked to the lead-out portion, thereby enabling unlocking by an external operation. Since the position (height) of the operation part through hole 202a is higher than the second side wall part 16 and the second top wall part 17 of the lower rail 1 as described above, the operation derived from the operation part through hole 202a. The vicinity of the portion 36 is open, and for example, a member such as an unlocking handle for linking to the operation portion 36 can be easily retrofitted, thereby increasing the degree of freedom in the work process.

The engaging portion 31 of the locking member 3 can be engaged / disengaged with the engaging teeth 13a at the lower end of the lower portion 13 of the lower rail 1 through the locking through hole 201a of the first standing plate 201, and further, the upper It is inserted into an engagement receiving hole 22a formed through the side plate portion 22 of the rail 2, and is engaged with a tongue-like portion 22aa provided so as to hang down from the inner surface of the upper wall portion of the engagement receiving hole 22a. . Note that the number of the locking through-holes 201a and the engagement receiving holes 22a is determined according to the number of the engagement portions 31 of the lock member 3, and the height positions thereof are the engagement teeth at the lower end of the lower rail hanging portion 13 It is equivalent to 13a.

When the engaging portion 31 is inserted into the locking through hole 201a, the distal end connecting portion 32 that connects the distal ends of the adjacent engaging protrusions 31 and 31 pushes the lock member 3 down slightly, thereby locking the through hole for locking. 201a and the engagement receiving hole 22a are passed through the gaps below the tongues 201aa and 22aa provided to hang down from the inner surface of the upper wall portion into the corresponding through hole.

In the lock mechanism configured as described above, when the operation portion 36 led out from the operation portion through hole 202a is pushed down, the entire central portion of the lock member 3 is pushed down. As a result, the engagement portion 31 is engaged. The lock is released by moving downward from the tooth 13a.
When the operation portion 36 is stopped, the entire region including the central portion of the lock member 3 is restored to the original position by an elastic (spring) force. As a result, the engaging portion 31 is engaged with the engaging teeth 13a. Then, it is locked again. In this locked state, the engaging portion 31 is locked by the end surface in the rail direction of the tongue-shaped portion 22aa of the engagement receiving hole 22a and the end surface in the rail direction of the tongue-shaped portion 201aa of the locking through hole 201a. The upper rail side plate 22, the lower rail side hanging portion 13, and the upper rail side first standing plate 201 are locked at three points, so that the locked state can be reliably maintained.

In the above description, the cross-sectional shape of the lock member 3 is not mentioned. However, for example, when the cross-section is a circular cross section, the diameter of the engaging portion 31 can be reduced while ensuring the strength. The pitch of the engaging teeth 13a in the rail direction can be reduced. That is, the step of the lock position can be set small.

Sectional drawing of the locking mechanism part of the seat slide apparatus of embodiment. The lock member (spring) 3 used with the seat slide apparatus of FIG. 1 is shown, (a) is a top view, (b) is a front view. FIG. 2A is a perspective view taken along line AA in FIG. 1, and FIG. 2B is a perspective view of a lock member (spring) 3. The figure which showed the AA line arrow in FIG. 1 with the perspective view. The conventional seat slide apparatus which used the spring p3 which bent and formed the linear elastic body as a locking member is shown, (a) is a top view, (b) is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower rail 10 Bottom wall part 11 Side wall part 12 Top wall part 13 Hanging part 13a Engagement tooth 16 Second side wall part 17 Second ceiling wall part 18 Second hanging part 2 Upper rail 20 Standing plate part 201 First standing board (one side) Standing board)
201a Locking through hole 201aa Tongue 201b Holding portion 202 Second standing plate (the other standing plate)
202a Operation part through-hole 21 Bottom plate part 22 Side plate part 22a Engagement receiving hole 22aa Tongue part 26 Second bottom plate part 27 Second side plate part 3 Lock member (spring)
30 Base part 30c End part 31 Engagement part 32 Tip connection part 36 Operation part 1p Lower rail (conventional)
2p upper rail (conventional)
20p Standing plate (conventional)
3p lock member (spring) (conventional)
31p engagement part (conventional)
13ap engaging tooth (conventional)

Claims (6)

A seat slide device comprising a lock mechanism associated with the upper rail and the lower rail, the upper rail being movably supported on the lower rail, and locking the upper rail in a movement-inhibited state by the lock mechanism,
The lower rail includes a bottom wall portion forming a rail bottom portion, a side wall portion standing upward from one edge of the bottom wall portion, and a ceiling wall portion extending inward in the rail width direction from the upper end of the side wall portion. And a hanging part that hangs down from the tip of the top wall part,
The upper rail includes a vertical plate portion for supporting the sheet at the top with two parallel upright plate provided vertically, the lower rail from one of the lower ends of two parallel vertical plates of the upstanding plate portions A bottom plate portion extending to the side wall portion side, and a tip portion of the bottom plate portion that is erected upward from the tip of the bottom plate portion, and the tip of the bottom plate portion is positioned in a groove formed by the side wall portion, the ceiling wall portion, and the hanging portion of the lower rail A side plate portion,
The locking mechanism is
A locking through-hole formed on one hand of two parallel vertical plate of the vertical plate portions,
Two other hand formed in the operation portion for a through hole parallel vertical plate of the vertical plate portions,
Engagement teeth formed by cutting out the lower end edge of the hanging part in a concavo-convex shape,
A linear elastic body is formed by bending so as to have a base, an engaging part protruding from the base, and an operation part protruding from the base to the opposite side of the engaging part, and the base It is sandwiched between the two standing plates, the operation part is led out of the rail through the operation part through hole, and the engagement part can be engaged / disengaged with the engagement tooth through the lock through hole. A locking member that is
The upper rail is locked in a movement-inhibited state by engaging the engagement portion with the engagement teeth by the elastic force of the lock member, and the operation portion is operated against the elastic force to be detached from the engagement teeth. The seat slide device is characterized in that the lock is released by making it happen. In claim 1,
A holding portion for supporting the locking member made of the linear elastic body is cut and raised on either one of the two parallel standing plates of the standing plate portion,
The lock member is engaged with the holding portion at each end of the base,
A seat slide device characterized by that. In claim 1 or claim 2,
The lower rail further includes a second side wall portion erected from the other edge of the bottom wall portion, and the height of the second side wall portion is set to be lower than the height of the through hole for the operation portion. ,
A seat slide device characterized by that. In any one of Claims 1-3,
The lock mechanism further includes an engagement receiving hole formed through the side plate portion,
The lock member can be engaged / disengaged with the engagement teeth through the lock through hole, and the front end of the engagement portion is locked to the engagement receiving hole.
A seat slide device characterized by that. In claim 4,
The locking through hole formed in the one upright plate and the engagement receiving hole formed in the side plate portion have tongue-like portions provided so as to hang down from the inner surface of the upper wall portion of each through hole into the through hole. Have
A seat slide device characterized by that. In claim 3 ,
The lower rail includes a second ceiling wall portion extending inward in the rail width direction at a height lower than that of the operation portion through hole from the distal end of the second side wall portion, and the lower rail depending from the distal end of the second ceiling wall portion. A second drooping portion,
The upper rail includes a second bottom plate portion extending width narrower than the bottom plate portion to the second side wall portion side of the lower rail from the other lower end of the two parallel vertical plate of the vertical plate portions, A second side plate portion erected upward from the tip of the second bottom plate portion, the tip of which is located in a groove formed by the second side wall portion, the second top wall portion, and the second hanging portion of the lower rail. In addition,
A seat slide device characterized by that.

Images