JPH0546973Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a seat truck used in automobiles, etc., and more specifically, to easily return the seat to the set seat position when a person walks in. Regarding the seat track that can be used.

(Prior Art) Some passenger seats of two-door cars have a walk-in mechanism to improve the ease of getting in and out of the rear seats. When the walk-in mechanism operates the walk-in handle (or reclining lever),
At the same time as the seat bag is tilted forward, the locking device of the seat track is released and the seat is slid to the front position.

The walk-in is canceled by raising the seat back that has fallen forward. At this time, there are two types: one type that locks the seat track at the frontmost position at the same time as the seat is moved back, and another type that slides the seat backwards and locks the seat track at a position preset by the manufacturer.

(Problem to be solved by the invention) In the seat track having the above configuration, in order to obtain the seat track position of the occupant's preference after canceling the walk-in, the seat track locking device must be released again and the seat track position should be adjusted to the desired seat track position. There was a problem with having to slide it.

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a seat track that can return the seat to a desired seat track position previously set by the occupant in one action after a walk-in.

(Means for Solving the Problems) The present invention for solving the above problems consists of a lower rail fixed to the floor side, an upper rail slidably fitted to the lower rail, and a lock hole provided in the lower rail. A perforated lock plate,
A memory block slidably provided along the lower rail, a handle shaft rotatably provided along the upper rail, and a lock lever fixed to the handle shaft and capable of engaging with the lock hole of the lock plate. a first spring rotatably biasing the handle shaft in the direction of engagement between the lock lever and the lock plate; A rotating walk-in lever, a protrusion rotatably attached to the atsupa rail, and a protrusion at one rotating end that comes into contact with the walk-in lever when not walking in, and a protrusion that engages with the walk-in lever when walking in. and a hold lever provided with a notch portion for holding the lock lever in a non-engaging position, and a lock portion provided at the other rotating end portion to be able to come into contact with the memory block, and one of the hold levers. It is characterized by having a second spring that biases the rotating end portion to rotate in the direction of the walk-in lever.

(Function) In the seat truck of the present invention, at the time of walk-in, the walk-in lever rotates and comes into contact with the lock lever, and the lock lever that was engaged with the lock plate also rotates together with the walk-in lever, and the lock lever and the lock plate is disengaged. Then, the walk-in lever that was in contact with the protrusion provided on one rotating end of the hold lever engages with the notch provided on one rotating end of the hold lever, and together with the walk-in lever. The rotated lock lever is held in a non-engaging position with the lock plate.

When the walk-in is released and the upper rail is moved along the lower rail to the pre-walk-in position, the lock part provided at the other rotating end of the hold lever moves the memory that is slidably provided along the lower rail. The hold lever comes into contact with the block, rotates, the notch of the hold lever disengages from the walk-in lever, and the lock lever re-engages with the lock plate.

(Example) Next, an example of the present invention will be described using FIGS. 1 to 4.

First, in FIG. 3, 1 is a lower rail fixedly installed on the floor side, and 2 is an upper rail that is slidably fitted to the lower rail 1. The lower rail 1 is composed of a base wall portion 1a, a side wall portion 1b bent from both sides of the base wall portion 1a in a direction opposite to the floor, and a flange portion 1c extending outward from the side wall portion 1b. The upper rail 2 is made up of a base wall 2a, a side wall 2b extending toward the floor from both sides of the base wall 2a, and a flange 2c extending inward from the side wall 2b. . The lower rail 1 and the upper rail 2 are slidably fitted together by the steel balls 3 and rollers 4.

Next, as shown in FIGS. 1 and 2, a lock plate 5 having lock holes 5a formed at a predetermined pitch is fixed to the base wall 1a of the lower rail 1. Further, a handle shaft bracket 7 that rotatably supports a handle shaft 6 provided along the upper rail 2 is fixed to the base wall portion 2a of the upper rail 2. Handle shaft bracket 7
is provided with a handle shaft support part 7a, a lock lever 8 is fixed to the handle shaft 6 between the two handle shaft support parts 7a, and a walk-in lever 9 is rotatably fitted therein.
The lock lever 8 is the lock hole 5 of the lock plate 5.
It has a lock tooth 8a that can be engaged with the lock tooth 8a and a protrusion 8b that can come into contact with the walk-in lever 9. The walk-in lever 9 includes a walk-in cable connection part 9a to which a walk-in cable 10 that transmits the operation of a walk-in handle (or recline lever) (not shown) is connected, and a second part protruding from both sides of the walk-in cable connection part 9a. It has a first protrusion 9b and a second protrusion 9c. A slotted portion 6a is provided at one end of the handle shaft 6, and a first spring 14 is wound around the handle shaft 6 near the slotted portion 6a. One end of the first spring 14 is locked to the slotted portion 6a, and the other end is locked to the handle shaft bracket 7, respectively, so that the handle shaft 6 is moved in the direction of engagement between the lock lever 8 and the lock plate 5. Rotation is biased. Further, a hold lever bracket 11 is fixed to the base wall portion 1a of the upper rail 1 on the side of the handle shaft bracket 7. Hold lever bracket 11
A hold lever 12 is rotatably attached using a pin 13. One rotating end of the hold lever 12 has a protrusion 12a that the second protrusion 9c of the walk-in lever 9 comes into contact with when not walking in, and a second protrusion 9c of the walk-in lever 9 when walking in. Notch portion 12 with which portion 9c engages
b, and a kick portion 12c is provided at the other rotating end. A second spring 1 is attached to the pin 13.
One end of the second spring 15 is locked to the hold lever 12, and the other end is locked to the pin 13. The second spring 15 applies an urging force to the hold lever 12 so that one rotating end of the hold lever 12 rotates in the direction of the walk-in lever 9 . A guide plate 16 having lock holes 16a formed at a predetermined pitch is fixed to the lock plate 5. A memory block 17 is slidably fitted into the guide plate 16. As shown in FIG. 3, the memory block 17 includes a main body portion 17a provided with a slit into which the guide plate 16 is fitted, and a kick portion 1 of the hold lever 12.
2c, and a handle 17c.
and an indicator portion 17d extending in the direction of the side wall 2b of the upper rail 2. As shown in FIG. 4, a protrusion 17e that can be engaged with a lock hole 16a formed in the guide plate 16 is provided in the slit of the main body 17a of the memory block 17. As shown in FIG. Further, an arc-shaped leaf spring 18 is fitted into the slit of the memory block 17, and applies a biasing force to the memory block 17 in the direction in which the protrusion 17a engages with the lock hole 16a of the guide plate 16.

Next, the operation of the above configuration will be explained.

First, to adjust the normal seat track position, move the handle shaft 6 to the first position in Fig. 1.
Rotate in the direction of the arrow against the biasing force of the spring 14. Then, the lock lever 8 fixed to the handle shaft 6 rotates in the direction opposite to engagement with the lock plate 5, the seat track is unlocked, and the upper rail 1 becomes slidable relative to the lower rail 2. After the desired seat slide is performed, when the force rotating the handle shaft 6 is released, the lock lever 8 rotates in the direction of the lock plate 5, and the lock teeth 8a of the lock lever 8 engage the lock hole of the lock plate 5. 5a and becomes locked.

Next, when a walk-in handle (or reclining lever) (not shown) is operated, the seat back falls forward. Further, the operation of the walk-in handle is transmitted to the walk-in lever 9 via the walk-in wire 10, and the walk-in lever 9 rotates in the direction of the arrow in FIG.
When the walk-in lever 9 rotates, the first protrusion 9b comes into contact with the protrusion 8b of the lock lever 8, and the lock lever 8 also rotates in the direction of the arrow, thereby releasing the engagement between the lock lever 8 and the lock plate 5, i.e. , the seat track is unlocked.
Further, as the walk-in lever 9 rotates in the direction of the arrow, the second protrusion 9c rotates the hold lever 12 in the direction of the arrow against the urging force of the second spring 15, and then holds the hold lever 12. It engages with the notch 12b of the lever 12 and holds the lock lever 8 in the non-engaged position. Then, at the same time as the seat track is unlocked, the seat, which is biased forward by a spring (not shown), slides to the frontmost position, and a walk-in is performed.

Next, in order to return the seat after the walk-in to the seat track position before the walk-in, the seat that has fallen forward is raised up and the seat is slid rearward. Here, it is assumed that the memory block 17 is placed at the seat position before the walk-in. As the seat is slid rearward, the kick portion 12c of the hold lever 12 comes into contact with the protrusion 17b of the memory block 17, causing the hold lever 12 to rotate in the direction opposite to the arrow in FIG. Then, the notch 12b of the hold lever 12 that was holding the lock lever 8 in the disengaged position and the second protrusion 9 of the walk-in lever 9
c is released, the lock lever 8 is rotated by the first spring 14, and the lock lever 8 is rotated by the first spring 14.
The lock tooth 8a of the lock hole 5 of the lock plate 5
a is engaged, the seat is locked, and the return to the seat track position before the walk-in is completed.

In addition, the memory block 17 is shown in FIG.
If you hold the handle 17 and apply a force in the direction of the arrow against the biasing force of the leaf spring 18, the protrusion 17a of the memory block 17 and the lock hole 16 of the guide plate 16 will close together.
The engagement with a is released and it can be moved to any position. In addition, in this embodiment, a mark is provided on the side wall portion 2b of the upper rail 2b,
Memory block 17 is located at this landmark before the walk-in.
By aligning the indicating portions 17d, it is possible to easily return to the seat track position before the walk-in.

According to the above configuration, after the walk-in, the seat can be returned to the seat track position before the walk-in in one action. Further, the seat track position to be returned to can be arbitrarily set by moving the memory block 17 on the guide plate 16.

Note that the present invention is not limited to the above embodiments.
For example, in this embodiment, a horizontal seat track has been described, but the present invention can also be applied to a vertical seat track.

(Effects of the Invention) As described above, according to the present invention, it is possible to realize a seat track that can return the seat to a desired seat track position previously set by the occupant in one action after a walk-in.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view of FIG. 1 seen from a different angle, FIG. 3 is a sectional view taken along line AA in FIG. 1, and FIG. 4 is a sectional view taken along line BB in FIG. 3. 1...Lower rail, 1a, 2a...Base wall part, 1
a, 2b...Side wall part, 1c, 2c...Flange part, 2...Upper rail, 3...Steel ball, 4...Roller, 5...Lock plate, 5a
...Lock hole, 6...Handle shaft, 7...
Handle shaft bracket, 7a... Handle shaft support part, 8... Lock lever, 8a...
Lock teeth, 8b, 12a, 17b...protrusion, 9
...Walk-in lever, 9a...Walk-in cable connection part, 9b...First protrusion, 9c...
Second protrusion, 10...Walk-in cable, 1
DESCRIPTION OF SYMBOLS 1... Hold lever bracket, 12... Hold lever, 12b... Notch part, 12c... Kick part, 13... Pin, 14... First spring,
15...Second spring, 16...Guide plate, 17...Memory block, 17a...Body section, 17c...Handle section, 17d...Instruction section, 17
e... Protrusion, 18... Leaf spring.

Claims (1)

[Scope of utility model registration request] A lower rail fixed to the floor side, an upper rail slidably fitted to the lower rail, a lock plate provided on the lower rail and having a lock hole drilled therein, and a lock plate provided slidably along the lower rail. a handle shaft rotatably provided along the upper rail; a lock lever fixed to the handle shaft and capable of engaging with a lock hole of the lock plate; a first spring that rotationally biases the lock plate in the engagement direction; a walk-in lever that rotatably fits into the handle shaft and comes into contact with the lock lever during walk-in and rotates together; and the upper rail. is rotatably mounted on the
One rotating end is provided with a protrusion that comes into contact with the walk-in lever during non-walk-in and a notch that engages with the walk-in lever during walk-in and holds the lock lever in a non-engaged position. a hold lever, the other rotating end of which is provided with a kick portion that can come into contact with the memory block;
A seat truck comprising: a second spring that biases one rotating end of the hold lever to rotate in the direction of the walk-in lever.