JPH02267033A - Seat sliding device - Google Patents

Abstract

PURPOSE:To decrease the height of the seat sliding device in the title for a two-door passenger car and ensure a clearance to the ceiling of the vehicle by installing a releasing member, a retaining member and a contact part on the side of a rail, and oscillating the retaining member in a horizontal plane. CONSTITUTION:By the elasticity in the compressive direction of a spring 4, a mobile rail 2 is always energized forward the front of a vehicle body. A bracket 6a is formed on the top side of a lock plate 6, and an operating lever 7 is fitted so that it may rotate freely. The front of the operating lever 7 is supported by a supporting plate 2b, and a clamping part 7a is formed at its front end. A cylindrical member 11 is fixed in front of the fixing member 9 of the operating lever 7, and in further front of it, a fixed releasing member 12 is installed. A holding member 18 is pivotally supported on the lower surface of a bracket 16 to be oscillated in a horizontal plane. When a seatback located at the most refracted position is turned forward, a cable inner is pulled to rotate the fixture releasing member 12 counterclockwise around the operating lever 12.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a seat slide device.

(Prior art) In a seat slide device for a two-door passenger car, when the seatback of the front seat is tilted forward, the front seat moves forward, and after getting on and off the rear seat, when the seatback is raised and moved backward, the front seat moves forward. There is a so-called walk-in type structure that locks in the standard position.

Such a seat slide device usually has a fixed rail that is fixed to the vehicle body, a movable rail that is slidably attached to the fixed rail and supports the seat, and a movable rail that is fixed to the fixed rail. a fixing member, a release member that releases the fixation of the fixation member, a holding member that engages with the release member to maintain the released state, and abuts against the holding member at a predetermined position to release the holding member. It is comprised of an abutting part and the like that is swung to release the engagement with the release member.

(Problem R to be Solved by the Invention) Incidentally, in recent years, passenger cars often have a low vehicle height in order to improve their appearance, and this tendency is particularly strong in two-door passenger cars such as those mentioned above. In such a passenger car, it is necessary to lower the distance between the floor surface of the vehicle body and the seat in order to ensure clearance between the seats 1 and the ceiling of the vehicle body.

However, in conventional seat slide devices, the holding member (latching lever) is swung in a vertical plane, as shown in Japanese Utility Model Application Publication No. 62-15037, and for this reason, the height of the seat slide device is becomes larger,
As mentioned above, there was a problem in that it was not possible to lower the distance between the car body floor and the seat, making it difficult to secure clearance between the seat and the car body ceiling.

The present invention has been made in view of such conventional circumstances,
The objective is to provide a seat slide device that can easily ensure clearance between the seat and the ceiling of the vehicle body.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a fixed rail 1 fixed to the vehicle body side, a movable rail 2 slidably attached to the fixed rail 1 and supporting a seat. , a fixing member 9 that fixes the movable rail 2 to the fixed rail 1, a release member 12 that releases the fixation of the fixed member 9, and a holding member 18 that engages with the release member 12 and maintains the released state.
and a contact portion 1e that contacts the holding member 18 at a predetermined position to swing the holding member 18 and release the engagement with the release member 12. The contact portion 1e is arranged on the rail 1.2, and the holding member 18 is swung in a horizontal plane.

(Function) Since the release member, holding member, and abutment part are provided on the side of the rail, and the holding member is made to swing in a horizontal plane, the height of the seat slide device can be lowered, and the seat and the vehicle ceiling can be lowered. Clearance can be secured.

(Embodiment) A preferred embodiment of the present invention will be described below based on the accompanying drawings.

Fig. 1 is a side view of the seat slide device, Fig. 2 is a plan view of the same, and Fig. 3 is a vertical sectional view of the main part. There is.

In the figure, 1 is a fixed rail, and 2 is a movable rail that is slidably attached to the fixed rail 1. These fixed rails 1 and movable rails 2 constitute a rail assembly 3, and the rail assembly 3 extends in the longitudinal direction of the vehicle body. extend. The fixed rail 1 includes a bracket b1. b2 is fixed to the vehicle body floor surface, and the movable rail 2 is fixed to the vehicle body floor by bracket b3. The lower surface of the seat cushion of the front seat is supported via b4.

As shown in FIG. 3, the fixed rail 1 consists of a support plate 1a and a rail portion 1b, and the side surface of the support plate 1a has a plurality of engagement holes 1c at regular intervals as shown in FIG. A movable rail 2 is slidably fitted into the rail portion 1b. Further, a mounting portion 1d extending laterally is attached to the lower surface of the support plate 1a, and a protrusion 1e is formed at the tip of the mounting portion 1d. A spring 4 is stretched between the mounting portion 1d and the mounting portion 2a attached to the side surface of the movable rail 2. The elasticity of the spring 4 in the compression direction always urges the movable rail 2 forward of the vehicle body, that is, in six directions.

A lock plate 6 is fixed to the side surface of the movable rail,
A bracket 6a is provided on the upper side of the lock plate 6.
6a, and as shown in FIG. 3, an insertion hole 6b having the same height as the engagement holes 1c, . . . is formed approximately at the center of the lock plate 6.

A hole 6 formed in the bracket 6a of the lock plate 6
An operating lever is rotatably fitted into the al. The operating lever 7 has a front portion supported by a support plate 2b attached to the front side surface of the movable rail 2, and a grip portion 7a at the front end.
is formed.

A fixing member 9 is fixed to a portion of the operating lever 7 between the brackets 6a, 6a, and the upper part of the fixing member 9 is fixed to the operating lever 7, extends downward from here, and the lower end of this extending portion is fixed to the operating lever 7. A lock pawl 9a extending toward the lock plate 6 is formed on the top. The lock claw 9a is inserted through the insertion hole 6b and engaged with the engagement hole 1c, and the movable rail 2 is fixed to the fixed rail 1 by this engagement. A return spring 1o is attached to the rear end of the operating lever 7.
Due to the elasticity of this return spring 10, the operating lever 7
is always in the B direction in Fig. 3, that is, the lock claw 9a is in the engagement hole 1c.
is biased in the direction of engagement.

A cylindrical member 11 is fixed to the front of the fixing member 9 of the operating lever 7, and that portion is cut out in the cylindrical member 11 to form an engaged portion 11a as shown in FIGS. 4 and 5. .

Further, a fixing release member 12 is attached to the front of the cylindrical member 11 of the operating lever 7, and the fixing releasing member 12 includes a base 12a rotatably attached to the operating lever 7, and an end of the base 12a on the front side of the vehicle body. The cam portion 12b is fixed to the
and a mounting portion 12c extending downward from the base portion 12a. An engaging portion 12d is formed at the end of the base portion 12a on the rear side of the vehicle body, and this engaging portion 12d is not shown in FIG.
The cylindrical member 11 contacts the wall surface 11a1 on one side of the engaged portion 11a of the cylindrical member 11. At this time, a predetermined gap S is formed between the wall surface 11a2 on the other side of the cylindrical member 11 and the engaging portion 12d, as shown in FIG. The cam portion 12b
A cam surface 12b1 and an engaging portion 1 continuous to the cam surface 12b1 are provided on the side surface of the cam surface 12b1.
Form 2b2. Further, at the lower end of the mounting portion 12c,
One end of the cable inner 14a of the cable 14 is connected, and the other end of the cable inner 14a is connected to the seed pack.

On the other hand, a bracket 16 is fixed to the upper surface of the movable rail 2, and a mounting portion 16a is formed on the side of the bracket 16 facing diagonally downward as shown in FIG.
6a supports the outer 14b of the cable 14.

Further, an opening 16b is formed approximately at the center of the bracket 16,
As shown in FIGS. 3 and 8, a support portion 16c extending downward is integrally formed on the front wall portion of this frontage 16b, and a receiving portion 16d is formed on this support portion 16c.

A holding member 18 is attached to the lower surface of the bracket 16. An extending portion iab extending downward is formed on the front end side of the holding member 18, and an engaging portion 18c is formed laterally from the extending portion iab. As shown in FIG. 6, the holding member 18 is pivotally supported on the lower surface of the bracket 16 by a shaft 19, and is configured to swing in a horizontal plane. A collar 20 is fitted on the outer periphery of the shaft 19, and a return spring 21 is provided on the outer periphery of the collar 20. One end of the return spring 21 is fixed to the bracket 16, and the other end is fixed to the holding member 18, and the return spring 21 always urges the holding member 18 in the counterclockwise direction in FIG. 2, that is, in the C direction. Ru. Therefore, the rear portion 18d of the holding member 18 is urged in the direction D in FIG. 3, and comes into contact with the cam surface 12b1 with a certain elasticity.

In this embodiment, the spring 4, the lock plate 6, the fixing member 9, the cylindrical member 11, the fixing release member 12,
The holding member 18 and the like are arranged on the side of the rail assembly 3.

Next, the operation of the seat slide device described above will be described.

In the state shown in FIGS. 1 and 2, the seat is in the rearmost position. When the seat back is tilted forward in this state, the cable inner 14a is pulled, and the fixing release member 12 rotates around the operating lever 7 in the counterclockwise direction in FIG. 3, that is, in the E direction, via the attachment portion 12c. As shown in FIG.
The cylindrical member 1 is in contact with the wall surface 11a1 of 1a.
1, the operating lever 7 rotates in the direction E in FIG. 3, and the rotation of the operating lever 7 causes the fixing member 9 to rotate in the same direction. This rotation of the fixing member 9 causes the lock pawl 9a to disengage from the engagement hole 1c, and the fixation of the movable rail 2 is released.

On the other hand, as the fixing release member 12 rotates as described above, the rear portion 18d of the holding member 18 moves to the cam portion 121? (See FIGS. 7 and 8). By this engagement, the cam portion 12b is fixed at that position, the lock pawl 9a is maintained in a disengaged state from the engagement hole IC, and the movable rail 2 and seat are moved forward by the elasticity of the spring 4. Further, the holding member 18 swings in the direction C in FIG. 2 and assumes the position shown by the imaginary line. At this time, as shown in FIGS. 7 and 8, the rear 18d side portion of the holding member 18 engages with the receiving portion 16d of the support portion 16c. This is because the elasticity of the return spring 10, which is a relatively large force, causes the fixation release member 1 to
2 to the rear part 18d of the holding member 18 (direction B in FIG. 7), the rear part 18d of the holding member 18 is supported by a highly rigid receiving part 16d, and the elastic force is received by this receiving part 16d.
This is to improve the accuracy of engagement between the holding member 18 and the engaging portion 12b2.

As the movable rail 2 and the seat move forward, the engaging portion 18c of the holding member 18 comes into contact with the protrusion 1e, and the holding member 18 swings about the shaft 19 in the direction F in FIG. The position is shown in . Due to this rocking of the holding member 18, the rear portion 18d of the holding member 18 moves in the direction C in FIG. 3, and the engagement between the rear portion 18d and the engaging portion 12b2 is released. However, at this point, the seat back is still collapsed, so the cable inner 14a is in a tensioned state.
Even if the engagement between the rear part 18d of the holding member 18 and the engagement portion 12b2 is released, the fixing release member 12 and the operating lever 7 do not rotate, and therefore the lock claw 9a remains disengaged from the engagement hole 1c. do.

When the movable rail 2 and the seat move further forward, the holding member 18
The engaging portion 18c is disengaged from the protrusion 1e, and the holding member 18 swings in the direction C and returns to the position shown by the imaginary line, where the rear portion 18d of the holding member 18 engages with the engaging groove 12b2.

When the movable rail 2 and the seat move further forward and reach the forwardmost position, the user can get on and off the rear seat.

After getting on and off, the seatback of the seat is raised and the movable rail 2 and the seat are moved rearward.

Holding member with this movement! The engaging portion 18c of 8 is again connected to the protrusion 1e.
, and the holding member 18 swings in the F direction. At this time, the seat back is raised, so the holding member 18 is in the F position.
By swinging in the direction, the rear part 18d of the holding member 18 engages the engaging part 1.
When released from 2b2, the fixing release member 12 rotates in the direction B in FIG. 7 due to the elasticity of the return spring 10, the lock claw 9a engages with the engagement hole IC, and the fixed rail 2 and the seat are fixed. This position is a preset standard position.

When it is desired to shift the seat back and forth from this standard position and fix it, the user grips the grip portion 7a of the operating lever 7 and rotates the operating lever 7. Since there is a gap 1S between the wall surface 11a2 of the cylindrical member 11 and the engagement portion 12, the operating lever 7 is rotated by this gap S, and the lock claw 9a is disengaged from the engagement hole IC. After releasing the fixation of the movable rail 2 in this way, slide the movable rail 2 and the seat to the desired position, release your hand from the operating lever 7, and the lock pawl 9a will be engaged again by the action of the spring 10. The movable rail 2 and the seat are fixed by engaging with the hole 1c.

In this embodiment, the spring 4, the lock plate 6, the fixing member 9, the cylindrical member 11, the fixing release member 12,
Since the holding member 18 and the like are arranged on the side of the rail assembly 3, and the holding member 18 is made to swing in a horizontal plane, the height of the seat slide device can be lowered.
Even if the vehicle height is set low, sufficient clearance between the seat and the vehicle ceiling can be secured.

(Effects of the Invention) As described above, according to the present invention, the release member, the holding member, and the contact portion are provided on the side of the rail, and the holding member is swung in a horizontal plane, so that the seat slide device The height of the seat can be lowered to ensure clearance between the seat and the vehicle ceiling.

[Brief explanation of drawings]

Fig. 1 is a side view of the seat slide device, Fig. 2 is a plan view thereof, Fig. 3 is a vertical sectional view of main parts, Fig. 4 is a side view of the operating lever, and Fig. 5 is V-V in Fig. 4. 6 is a sectional view taken along the line Vl-Vl in FIG. 2, FIG. 7 is a diagram showing the state of engagement between the cam portion and the holding member, and FIG. 8 is a partially cutaway perspective view of the main parts. be. In the drawings, 1 is a fixed rail, 1e is a contact portion, 2 is a movable rail, 9 is a fixed member, 12 is a release member, and 18 is a holding member. Patent applicant Matsuyama Seisakusho Co., Ltd. Agent
Patent Attorney Part 2 1) Part 1 Patent Attorney
Kuni Ohashi Otoma Patent Attorney
Koyama Rotating 2c

Claims (4)

[Claims] (1) A fixed rail that is fixed to the vehicle body side, a movable rail that is slidably attached to the fixed rail and supports the seat, a fixed member that fixes the movable rail to the fixed rail, and fixation of the fixed member. a holding member that engages with the releasing member to maintain the released state; and a holding member that contacts the holding member at a predetermined position and swings the holding member to disengage the releasing member. and an abutting part for releasing the engagement, wherein the releasing member, the holding member, and the abutting part are arranged on the side of the rail, and the swinging direction of the holding member is within a horizontal plane. Device. (2) The seat slide device according to claim 1, wherein a spring is provided between the fixed rail and the movable rail to urge the movable rail forward, and the spring is arranged to the side of the rail. (3) The seat slide device according to claim 1, further comprising a receiving portion that supports the holding member in the vicinity of the release member. (4) The seat slide device according to claim 2, wherein the contact portion is formed by a mounting portion of the spring on the fixed rail side.