JPH03200441A - Seat slide device with memory - Google Patents

Abstract

PURPOSE:To enable to quickly return a seat to an initial memory position with a simple constitution by constituting the device so that slide lock of a slide device is released through a first stage operation of a lock release operating lever and memory release of a memory mechanism is performed through a succeeding second stage operation. CONSTITUTION:A locking claw 8a is detached from a locking hole 3a, by rotationally moving operation of a lock release operating lever 7 from a slide lock position A to a lock release position B. At moving a seat moved rearward to return frontward after boarding in this condition, the seat is stopped on the initial memory position due to restriction of advance from there, by locking of a lock plate 8 in crossing condition with the receiving part 13d of a stopper 13 in the memory holding condition. In case of adjusting the seat position to change, the lever 7 is rotationally moved to a lock release position C to release memory of a memory mechanism 10, the seat position is adjusted, hereafter the stopper 13 is locked on the lock step part 11a of a guide rail 11 to hold memory, detaching the lever 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a seat slide device with memory that supports a vehicle seat so that it can be slid forward and backward.

(Prior Art) Conventionally, vehicle seats are generally attached to the floor of the vehicle body via a slide device. By operating the lock release control lever of the slide device and releasing the lock by the lock claw, the seat can be slid back and forth to obtain the optimum position for the seated person, and then the user can release the lock release control lever. The lock claw automatically returns to the seat positioning lock state.

(Problem to be Solved by the Invention) In recent years, due to improvements in the physique of passengers and sporty riding postures, when getting on and off, especially on the driver's seat side, the space between the handles and the like is narrow and interferes with each other, making it difficult to get on and off. Problems such as abrasion of the epidermis have arisen.

Therefore, some people operate the lock release operation lever of the slide device to release the lock when getting on and off the vehicle, and then move the seat to the rearmost position to get on and off the vehicle. However, in such cases, when returning the seat to its original position after getting in the vehicle (seating), the slide device for general vehicle seats does not have a memory function, so readjustment must be performed each time. This was troublesome and troublesome, and there was an inconvenience that it was difficult to return to the original optimum position after starting.

An electric seat slide device can automatically return the seat to its original position and solve the above problem, but in this case, the seat movement speed is slow, causing irritation to the occupants, and the structure is complicated, resulting in increased weight. In addition, there was a problem in that it caused high costs and was difficult to install in general vehicles.

The present invention was developed in view of the above-mentioned circumstances, and can be easily applied by slightly improving the conventional slide device, and does not cause an increase in weight or cost. Even if the seat is moved to the original memory position, the seat can be returned to its original memory position in one go, eliminating the need to readjust it each time. To provide a seat slide device with a memory that allows an operator to easily and reliably sense and discriminate between a slide opening/tick release operation and a memory release operation and prevent erroneous and unnecessary memory release operations.

[Structure of the invention]

(Means for solving the problem) The four-seat slide device with memory according to the present invention has the following features:
In order to achieve the above object, ``a slide device that supports a vehicle seat is provided with a mechanism that allows the seat to move rearward while holding the seat position in memory by operating the first slide lock release operation of the lock release operation lever. A seat slide device with a memory is provided with a memory mechanism that allows the memory to be released and can be moved back and forth with the seat by a second stage memory release operation of the lock release operation lever, An elastic member for sensing the slide lock release operation that engages with the movable part during the first stage of the slide lock release operation and allows the user to overcome the situation with a sense of moderation, and a movable part that engages with the second stage of the lock release operating lever to overcome the problem with a sense of moderation. The present invention is characterized in that an elastic member for sensing a memory release operation that can be overcome with a feeling is provided to allow the operator of the lock release operation lever to sense the operating stages of the first stage and the second stage.

(Function) With the above configuration, in the seat slide device with memory of the present invention, the slide lock of the slide device is released by operating the first stage of the lock release operation lever of the slide device, and the seat is moved rearward. Passengers can easily get on and off the vehicle. At this time, the memory mechanism retains the original seat position in memory, and if the seat that has been moved backwards is returned to the front, it can be returned to the original seat position in one go, and then the lock release operation can be performed. If you release the lever, the position will return to its original locked state, eliminating the need for readjustment.

Further, by operating the second stage of the lock release operation lever,
When the slide lock is released, the memory mechanism is released. In this state, the seat can be slid in either direction. In other words, it becomes possible to change and adjust the seat memory position, and by releasing the lock release operation lever after changing and adjusting the seat memory position, it becomes possible to lock the seat position and hold the memory at the changed memory position.

In addition, the movable part engages when the first stage of the lock release operation lever is operated to release the slide lock, and the elastic member for sensing the slide lock release operation is used, and when the second stage of the lock release operation lever is operated to release the memory. An elastic member for sensing the memory release operation is provided, which allows the movable part to engage and move over with a sense of moderation, making it easy for the operator of the lock release operation lever to perform the first-stage slide lock release operation and the second-stage memory release operation. It is possible to reliably detect and discriminate, and to reliably prevent erroneous operations such as unnecessary memory release operations. In particular, by providing an elastic member to detect the slide lock release operation and the memory release operation, even if there is some manufacturing and assembly error, the movable part will not engage with or overcome the elastic member. To enable an operator to reliably sense and discriminate between a first-stage slide lock release operation and a second-stage memory release operation by reliably engaging and overcoming with a sense of moderation without causing any inconveniences such as failure or failure.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

In the figure, 1 indicates a slide device for a vehicle seat (not shown). This slide device 1 includes a lower rail 3 made of lip channel steel fixed to the vehicle floor by a pair of front and rear fasteners 2 such as bolts, and an upper made of hat shaped steel slidably fitted onto the lower rail 3 so as to be movable back and forth. Mainly rail 4.

Then, two front and rear brackets 5.6 are welded and fixed to the upper surface of the upper rail 4, and a round rod-shaped shaft portion of a rotationally operated lock release operation lever 7 is attached to the inner rising loop-shaped portion of both brackets 5.6. 7a and is rotatably supported. A lock plate 8 is fixed in the middle of this shaft portion 7a so as to rotate together with the shaft portion 7a. A pair of front and rear lock claws 8a are formed at the tip (lower end) of this lock plate 8 and are bent outward. A lock spring 9, which is a torsion coil spring, is provided near the rear end of the shaft portion 7a, and the lock spring 9 constantly urges the shaft portion 7a to rotate in one direction, so that the lock pawl 8a is attached to the inner rising wall of the lower rail 3. He is trying to fit into one of the many lock holes 3a formed in the section.

A pair of left and right slide devices 1 (one side not shown) is installed on the vehicle floor. The slide device on the side not shown has a structure in which the lock plate 8 is interlocked with that of the slide device 1 shown in the figure via an interlocking bar or the like, or the lower rail 3 has a lock release operation lever 7.
This structure has only the upper rail 4 and no locking member.

A seat (not shown) is mounted and supported on the upper rails 4 of the left and right slide devices 1. In this state, the lock release operation lever 7 is rotated from the slide lock position A shown in FIG. 6(a) to the slide lock release position B shown in FIG. 6(b) against the lock spring 9 (first step). When operated, the lock plate 8 rotates together with the shaft portion 7a, and the lock pawl 8a at the lower end is disengaged from the lock hole 3a to be in the unlocked state. Upper rail 4 as it is
You can also slide the seat back and forth.

Furthermore, if the lock release operation lever 7 is released at the destination, it will return to rotation due to the biasing force of the lock spring 9, and the lock claw 8a
is inserted into the lock hole 3a at the relevant position, and the upper rail 4
The position will be locked.

A seat position memory mechanism 10 is provided in combination with the slide device 1 using such a rotationally operated lock release operation lever 7.

This memory mechanism 10 includes - guide rails 11,
A sliding body 1 that slides into this guide rail 11 so as to be movable back and forth.
2, and the guide rail 1 is incorporated into this sliding body 12.
It is comprised of a stopper 13 that locks on the first locking step 11a, a pressing spring 14 of this stopper 13, and a return spring 15 that constantly pulls and biases the sliding body 12 rearward.

The guide rail 11 is a channel material having a U-shaped cross section. A large number of concave locking steps 11a are cut out at the upper edge of the inner rising plate at intervals in the longitudinal direction, and each of the rising plate on both sides is cut out in the longitudinal direction (back and forth direction). A long hole 11b is formed in the shape of a slit. This guide rail 11 is fixed via front and rear mounting frames 16, 17 at a position inward of the lower rail 3 of the slide device 1 with a parallel interval therebetween.

The sliding body 12 has a substantially rectangular parallelepiped shape and slides into the guide rail 11 so as to be movable back and forth. A flat stopper mounting hole 12a is formed in this sliding body 12 so as to pass through it in the left and right (inside and out) directions.

The stopper 13 is a long hole 11b of the guide rail 11.
It is a single plate that is inserted into the stopper installation hole 12a of the sliding body 12 through the stopper assembly hole 12a of the sliding body 12. Inverted plate-shaped locking pieces 13a are erected on both sides of the base end side (ring slide device side) of this stopper 13, and reinforcing pieces 13b are provided to connect both of the locking pieces 13a, 13a to each other. have. Further, a step-like extension at the tip of the stopper 13 is a locking piece 13c that fits into the lock hole 3a of the lower rail 3 of the slide device 1,
The negative side edge (rear side edge) has a receiving step portion 13d.

During normal operation, this stopper 13 is pushed outward (towards the slide device) by a pressing spring 14 screwed onto the upper surface of the sliding body 12, and the locking pieces 13a on both sides of the proximal end are engaged with the locking steps 11a of the guide rail 11. The end locking piece 13c fits into the lock hole 3a of the lower rail 3 of the slide device 1.

Now the stopper 13 is connected to the guide rail 11 and lower rail 3.
It is supported on both ends and positioned and locked, and movement in the front and rear direction together with the sliding body 12 is completely regulated.

Further, the lock plate 8 of the slide device 1 is used as a means for releasing the positioning and locked state of the stopper 13. That is, the lock release operation lever 7 is rotated from the slide lock position A shown in FIG. 6(a) to the slide lock release position B shown in FIG. 6(b) by the first rotation operation, and then the lock is released. When the operation lever 7 is rotated to the memory release position C shown in FIG. 6(C) by the second rotation operation, the back surface of the lock plate 8 that rotates together with the operation lever 7 becomes the receiving part of the stopper 13. It hits the stepped part 13d and pushes it inward. Now the stopper 13 can be pressed 1
4, and at the same time, the locking pieces 13a on both sides of the proximal end are separated from the locking steps 11a of the idle rail 11.
The tip locking piece 13c is disengaged from the lock hole 3a of the lower rail 3, the positioning is released (memory release), and the sliding body 12
At the same time, movement in the front and rear directions becomes possible.

Note that the first stage rotational operation of the lock release operation lever 7, that is, from the slide lock position A in FIG. 6(a) to the FIG. 6(
In the rotation operation to the slide lock release position flB in b),
The stopper 13 is not pushed back by the lock plate 8 and maintains an immovable positioning and locking state (seat position memory holding state).

The lock plate 8 of the slide device 1 is always located behind the stopper 13, and when the lock plate 8 is moved forward, the receiving portion 13d of the stopper 13
The vehicle collides with the vehicle in a crossed state, and is prevented from moving further forward.

The pressing spring 14 is a single leaf spring bent in an inverted shape. This presser spring 14 is attached to the upper surface of the sliding body 12 together with a spring receiving plate 18 described below by screwing.

Also, a return spring 1 pulls and urges the sliding body 12 backward.
Reference numeral 5 denotes a coil spring, the front end of which is engaged with the front end inner side-shaped protruding piece 18a of the spring receiving plate 18 screwed to the upper surface of the sliding body 12, and the rear end thereof is engaged with the rear mounting frame 17. ing.

Here, a protrusion 8b is formed on the rear end edge of the lock plate 8, which is a movable part when the lock release operation lever 7 is operated to release the first slide lock.

Opposed to this, an elastic member 20 for detecting a slide lock release operation is attached and fixed to the inner rising loop-shaped lower surface portion of the rear portion of the bracket 6 via a welded angle member 21. This slide lock release operation sensing elastic member 20 is a leaf spring bent into a horizontal U-shape, and its rear side part is fixed to the angle member 21 with screws, and the front side part is arranged vertically in the middle to form a chevron shape. It has a shaped protrusion 20a.

The protrusion 8b on the rear edge of the lock plate 8 is attached to the protrusion 20a in FIGS. 6(b) and 7.
It engages in the middle of the first-stage slide lock release operation shown in Figure (b), and strokes over it with a sense of moderation.

Further, the locking piece 13c of the stopper 13, which is the movable part during the second stage memory release operation of the lock release operation lever 7, has recesses 13e at two locations on the front side edge thereof.

13f are formed so that protrusions 13g remain between them. Opposed to this, an elastic member 22 for sensing a memory release operation is attached and fixed to a protruding piece 18b protruding outward from the front end of the spring receiving plate 18 with screws. This memory release operation sensing elastic member 22 is also a leaf spring bent into a horizontal U-shape in the same way as described above, and has a chevron-shaped protrusion 22a arranged vertically in the middle of the rear side piece. A concave portion 13f on the proximal end side of the locking piece 13c of the stopper 13 is engaged with this protrusion 22a during normal times, and the lock release operation lever 7 is engaged with the concave portion 13f on the proximal end side of the locking piece 13c of the stopper 13 as shown in FIGS. 6(c) and 7(c). During the two-stage memory release operation, the protrusion 13g moves over the protrusion 22a of the elastic member 22 with a sense of moderation while being pushed inward of the stopper 13 by the rotation of the lock plate 8. The protrusion 22g is in the recess 13e of
are engaged.

That is, the slide lock release operation sensing elastic member 20 and the memory release operation sensing elastic member 22 are used to perform the first slide lock release operation of the lock release operation lever 7 (from position A to position B in FIG. 6). By giving a sense of moderation to the second-stage memory release operation (rotating operation from position B to position C in Figure 6), the operator can perform the first-stage memory release operation (rotating operation from position B to position C in Figure 6). It is possible to easily and reliably sense and determine whether a slide lock release operation has been performed or a second-stage memory release operation has been performed.

The operation of the seat slide device with memory having the above-mentioned configuration will now be described. First of all, usually Figure 1.

As shown in FIGS. 4, 5, 6(a), and 7(a), the lock release operating lever 7 of the slide device 1 is in the slide lock position A due to the urging force of the lock spring 9. In this state, the lock pawl 8a of the lock plate 8 is fitted into the lock hole 3a of the lower rail 3 to position and lock the seat together with the top rail 4.

Here, the lock release operation lever 7 is operated against the lock spring 9 from the slide lock position A in FIG. 6(a) to the first stage slide lock release operation to the slide lock release position B in FIG. 6(b). When the lock plate 8 is rotated, the lock claw 8a of the lock plate 8, which rotates together with the lock plate 8, is removed from the lock hole 3a, and the slide lock is released. If the seat is pushed rearward in this state, the seat will slide back to the rearmost position together with the upper rail 4, allowing the occupant to get on and off with ease.

At this time, the memory mechanism 10 maintains the original seat position in memory. That is, even if the first slide lock release operation of the lock release operation lever 7 is performed as described above, the lock plate 8 does not come into contact with the stepped portion of the receiving portion 13d of the stopper 13. With this, the locking pieces 13a on both sides of the base end of the stopper 13 are attached to the locking steps 1 of the guide rail 11.
1a, and the tip locking piece 13C is attached to the slide device 1.
While being fitted into the lock hole 3a of the lower rail 3, the stopper 13 is supported on both sides by the guide rail 11 and the lower rail 3, and is fixedly positioned and locked (memory retained) together with the sliding body 12.

In this state, when the occupant moves the seat that has been moved backward to return it to the front after getting on the vehicle, the lock plate 8 that moves forward together with this moves to the positioning and locking state (
It hits the receiving portion 13d of the stopper 13 in a cross state (memory holding state), and further advancement is restricted. This means that the seat returns to its original seat memory position in one go. When the lock release operation lever 7 is released, the lock plate 8 is rotated by the biasing force of the lock spring 9, and the lock claw 8a is fitted into the original lock hole 3a and is locked in its original position. This eliminates the need for readjustment.

In addition, if you want to change or adjust the seat position forward or backward due to a change of occupants, etc., use the lock release operation lever 7 in addition to the first rotation operation, and then perform the second rotation operation (memory release operation). and rotate the stopper to the stopper positioning and locking release position C shown in FIG. 6(c). This not only causes the lock pawl 8a of the lock plate 8 to disengage from the lock hole 3a to release the slide lock as described above, but also causes the memory mechanism 10 to release the memory.

That is, by the second rotation of the lock release operation lever 7, the back surface of the lock plate 8 comes into contact with the proximal stepped portion of the receiving portion 13d of the stopper 13 of the memory mechanism 10, and is pushed against the pressing spring 14. With this, the stopper 13 has locking pieces 13a on both sides of the proximal end at the locking steps 11a of the guide rail 11.
At the same time, the distal end locking piece 13c disengages from the lock hole 3a of the lower rail 3 and is released from its position, allowing it to move in the front-rear direction together with the sliding body 12. In this state, when the seat is moved forward according to the preference of the seated person, the lock plate 8 backs up the stopper 13 by the same stroke and moves it forward together with the sliding body 12. Conversely, when the seat is moved rearward, the lock plate 8 retreats by the same stroke to escape from the stopper 13, and the stopper 13 moves rearward together with the sliding body 12 by the tensile force of the return spring 15 by that stroke.

This will allow you to slide the seat in either direction.

When the lock release operation lever 7 is released after changing and adjusting the seat position in this manner, the lock release operation lever 7 is automatically returned to the original lock position A shown in FIG. 6(a) by the lock spring 9. At the same time, the lock plate 8 rotates back and the lock pawl 8a fits into the lock hole 3a to position and lock the seat at the changed position, and the stopper 13 of the memory mechanism 10 is pushed by the pressing spring 14. At the same time, the tip end locking piece 13c is fitted into the lock hole 3a of the lower rail 3. The stopper 13 is now positioned and locked in an immovable state by being supported on both sides, and the changed position is held in memory together with the sliding body 12.

Here, the sixth [(b)
During the first slide lock release operation to the state shown in FIG. Engage with the portion 20a from the state shown in FIG. 7(a) to the state shown in FIG. 7(b) and ride over with a sense of moderation. This allows it to be detected that the operator has performed the first slide lock release operation.

Further, FIG. 6(c) of the lock release operation lever 7
During the second stage memory release operation to the state shown in FIG. The protrusion 13
g engages and moves over with a sense of moderation, and the protrusion 22a comes to engage with the recess 13e on the tip side as shown in FIG. 7(c). This allows it to be detected that the operator has performed the second-stage memory release operation.

The slide lock release operation sensing elastic member 20 and the memory release operation sensing elastic member 22 provide a sense of moderation in the first stage slide lock release operation and the second stage memory release operation of the lock release operation lever 7, respectively. By giving this, it becomes possible to easily and reliably sense and determine whether the operator performed the first-stage slide lock release operation or the second-stage memory release operation. This makes it possible to prevent erroneous operations such as unnecessary memory release operations.

Note that if the slide device 1 in the above embodiment is provided with a return spring (not shown) that always urges the seat forward via the upper rail 4, the lock release operation lever can be pressed after sliding the seat back and getting on the vehicle. It is convenient because the seat can automatically move forward and return to the memory position by just operating Step 7.

〔Effect of the invention〕

Since the present invention is configured as described above, it can be easily applied to the conventional slide device by making a slight improvement, and it does not cause an increase in weight or cost. Even if the seat is moved to the rearmost position, the seat can be returned to its original memory position in one go, eliminating the need for readjustment each time.Also, the seat memory position can be changed as appropriate by performing a memory release operation. The operator can easily and reliably sense and distinguish between the slide lock release operation and the memory release operation, and in particular, by using an elastic member as the sensing means, even if there are some manufacturing and assembly errors, the elastic This eliminates the inconvenience of the movable part not engaging with or being unable to get over the member, and allows the operator to engage the member securely and get over it with a sense of moderation, allowing the operator to perform the first-stage slide lock release operation and the second-stage memory release operation. To provide a very simple seat slide device with a memory that can reliably sense and discriminate operations and prevent erroneous and unnecessary memory release operations.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially omitted perspective view of an assembled state, FIG. 2 is an enlarged perspective view of a single elastic member for sensing memory release operation, and FIG. 3 is an exploded perspective view. figure,
Figure 4 is a plan view of the assembled state, Figure 5 is a partially cross-sectional view taken along the line V-V in Figure 4, and Figures 6 (a), (b), and (c).
7(a) and 7(b) are cross-sectional views sequentially showing the effects of the slide lock state, the same lock release state, and the memory release state, respectively.
)(C) is a plan view sequentially showing the actions of the slide lock release operation sensing elastic member and the memory release operation sensing elastic member during the slide lock, the same lock release operation, and the memory release operation. 1...Slide device, 3...Lower rail, 3a...
・Lock hole, 4...Upper rail, 7...Lock release operation lever 8, 13...Movable part (8...Lock plate, 13...Stopper) 10...Memory mechanism, 20. ... Elastic member for sensing slide lock release operation, 22... Elastic member for sensing memory release operation.

Claims (1)

[Scope of Claims] A slide device that supports a vehicle seat is configured to allow the seat to move rearward while the seat position is held in memory by the first slide lock release operation of the lock release operation lever. A seat slide device with a memory provided with a memory mechanism that releases the memory by a memory release operation of the second stage of the lock release operation lever and enables the seat to move back and forth with the seat, wherein the memory mechanism of the first stage of the lock release operation lever is An elastic member for sensing the slide lock release operation that engages with the movable part when the slide lock is released and allows the user to overcome the situation with a sense of moderation; and the movable part that engages and allows the user to overcome the situation with a sense of control when the second stage memory release operation of the lock release operation lever is performed. 1. A seat slide device with a memory, characterized in that an elastic member for sensing a memory release operation is provided so that an operator of a lock release operation lever can sense the operating stages of the first stage and the second stage.