JPH0139233Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a seat slide device for an automobile, and in particular, a locking member that fixes a seat side guide rail to a vehicle body side guide rail is interlocked and released. The present invention relates to improvements in connecting members.

(Prior Art) FIG. 6 shows an example of a conventional automobile seat slide device.

A pair of seat-side guide rails 31 (the other is not shown) are provided in parallel in the front-rear direction at the bottom of the seat (not shown), and are vehicle body-side guides that support the seat-side guide rails 31 so as to be movable back and forth. rail 32
is fixed on the floor of the vehicle body at an appropriate height. On the opposite side of the vehicle body side guide rail 32, a base portion is fixed to the vehicle body side guide rail 32,
A lock plate 34 having a rack 33 formed at its free end extends.

A locking member 36 is attached to the free end of the rod bracket 35 whose base is fixed to the seat-side guide rail 31.
An actuating shaft 37 to which the upper part is fixed is pivotally mounted. The free end of the locking member 36 is provided with a locking hole (not shown) that can be engaged with an appropriate position of the rack 33, and the operating shaft 37 is rotated in the direction in which the locking hole is engaged. Forced.

One end of a wire 39 is locked to the free end of a connecting member 38 whose upper portion is fixed to the operating shaft 37, and the other end is a connecting member (not shown) fixed to the operating shaft of the other seat slide. It is locked at the free end of. When the actuation shaft of the other seat slide is operated, the actuation shaft 37 moves in the direction of the arrow via the wire 39, and the locking member 36 engages the lock plate 34.
It's starting to come off.

(Problems to be Solved by the Invention) In the conventional seat slide device as described above, the connecting member 38 needs to be arranged so as not to interfere with the rack 33 of the lock plate 34. There is a problem that the width becomes large, and in order to maintain a clearance between the connecting member 38 and the surrounding members, the connecting member 38
There is a risk that the rotation angle of the locking member 36 may not be sufficiently large, which may impede unlocking of the locking member 36.

(Means for Solving the Problems) The present invention forms an engaging portion in the front-rear direction of the lock plate, and provides a locking portion that can engage with this engaging portion at the free end of the connecting member. By fixing the connecting member to the actuation shaft at a position where the locking portion of the member is separated from the locking member by an integral multiple of the pitch of the engaging portion of the lock plate, the connecting member is locked together with the locking member. An object of the present invention is to provide a seat slide device for an automobile that can be connected to and removed from a plate.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

A pair of seat side guide rails 1 and a vehicle body side guide rail 2 that supports the seat side guide rails so as to be movable back and forth.
are arranged in parallel at the bottom of the seat and on the floor of the vehicle body, similar to the conventional seat slide device described above. An engaging portion 5 consisting of a rack 4 is formed at the free end of the lock plate 3 whose base is fixed to the vehicle body side guide rail 2.
are formed along opposing sides of the pair of vehicle body side guide rails 2.

An operating shaft 8 facing in the front-rear direction is pivotally attached to the free ends of rod brackets 6 and 7 whose bases are fixed to the upper part of the seat-side guide rail 1. A locking portion 11 consisting of a locking hole is formed at the free end of the locking member 9 whose upper portion is fixed to the operating shaft 8.
The tooth 4a is engaged with the tooth 4a.

The actuating shaft 8 has both ends locked to the rod bracket 6 and the actuating shaft 8, and is biased in the direction in which the locking member 9 engages with the lock plate 3 by the elasticity of a torsion spring 12 wound around the actuating shaft 8. has been done.

An upper portion of a connecting member 13 is fixed to the operating shaft 8, and a locking portion 14 consisting of a locking hole formed at the free end of the connecting member 13 engages with the teeth 4b of the rack 4.

The connecting member 13 has a locking portion 14 and a locking member 9.
It is fixed to the actuating shaft 8 at a position separated from the locking member 9 so that the distance from the locking portion 11 is a pitch that is an integral multiple of the pitch of the rack 4. One end of a wire rod 15 is locked to the free end of the connecting member 13, and the other end is fixed to a connecting member (not shown) of the operating shaft of the other seat slide.

Note that when the locking member and the connecting member (not shown) of the other operating shaft are rotated, the locking member 9 and the connecting member 13 are moved away from the lock plate 3 on the operating shaft 8. is starting to rotate.

In this way, by fixing the connecting member 13 to the operating shaft so as to be able to engage and detach from the lock plate 3 together with the locking member 9, the free end of the connecting member 13 can be brought closer to the lock plate 3,
The width of the seat slide device can be reduced, and the amount of rotation of the connecting member 13 can be increased, so that the locking member 9 can be reliably engaged and disengaged from the lock plate 3.

FIG. 4 shows a modification of the lock plate 16.

The engagement portion 5 of the lock plate 16 includes a plurality of engagement holes 1 of a fixed pitch formed in the lock plate 16.
It starts from 7. A locking portion 19 consisting of a locking pawl formed at the free end of a connecting member 18 whose upper end is fixed to the operating shaft 8 is engaged with the engaging hole 17 . In this case, the free end of the locking member (not shown) is also formed with a locking pawl that can be engaged and removed from the engagement hole 17.

FIG. 5 shows yet another modification of the connecting member 21. An engaging hole 11 formed at the lower free end of the connecting member 21 engages with the teeth 4a of the rack 4, and one end of the wire 15 is locked to the upper end of the connecting member 21 at a position opposite to the engaging hole 11. There is.

(Effect of the invention) According to the invention, an engaging part is formed in the longitudinal direction of the side part of the lock plate whose base is fixed to the guide rail on the vehicle body side, and a locking part that can be engaged with this engaging part is formed. is provided at the free end of the connecting member, and the connecting member is connected to the operating axis at a position where the locking part of the connecting member is separated from the locking part of the locking member by a distance that is an integral multiple of the pitch of the engaging part of the lock plate. By fixing the connecting member to the lock plate together with the locking member, the width of the seat slide device can be reduced, and the rotation angle of the connecting member can be set larger than that of conventional devices. In this way, the locking member can be reliably engaged and disengaged from the lock plate.

Further, according to the present invention, the locking portion of the locking member;
Since the lock plate can be engaged with the locking portion of the connecting member at two locations, there is an advantage that the sheet can be held more reliably than in the prior art.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an automobile seat slide device showing an embodiment of the present invention, FIG. 2 is a front view with main parts of the device cut away, and FIG. 3 is a perspective view of a connecting member. FIG. 4 is a perspective view showing a modified example of the lock plate and the connecting member, FIG. 5 is a perspective view showing another modified example of the connecting member, and FIG. 6 is a front view showing an example of a conventional seat slide device. be. DESCRIPTION OF SYMBOLS 1... Seat side guide rail, 2... Vehicle body side guide rail, 3... Lock plate, 4... Rack, 5... Engaging portion, 8... Operating shaft, 9... Locking member, 11... Locking portion, 13... Connection member, 14...
... Locking part, 15 ... Wire rod, 16 ... Lock plate, 17 ... Engagement hole, 18 ... Connection member, 19 ...
...Locking portion, 21...Connecting member.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of seat-side guide rails arranged longitudinally in parallel under the seat, and a pair fixed to the floor of the vehicle body that supports the seat-side guide rails so as to be movable back and forth. A lock plate provided on the vehicle body side guide rail and having an engaging portion formed along the longitudinal direction, and a locking portion that can be locked to the engaging portion of the lock plate at the free end. a locking member having a locking member, and a proper position of the locking member is fixed,
A seat slide device having an actuating shaft pivotally connected to the seat-side guide rail and rotatably biased in a direction to engage the locking portion of the locking member with the engaging portion of the lock plate, For each operation, the bases of a pair of connecting members each having a locking portion that can be engaged with the locking portion are separated from the locking member by an arbitrary distance that is an integral multiple of the pitch of the locking portion of the lock plate. A seat slide device for an automobile, characterized in that the seat slide device is fixed to a shaft and the free ends of both connecting members are connected to each other with a wire rod.