JPH0433140Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a memory mechanism for memorizing the slide position of a seat, and such a memory mechanism is mainly applied to seats installed in automobiles.

[Conventional technology]

A conventional example (Utility Model Publication No. 57-28669) is shown in FIGS. 7 and 8. In the figure, 1 is a lower rail, and 2 is an upper rail that is slidably fitted onto the lower rail 1. A walk-in lever 3 is attached to a predetermined position on the upper surface of the upper rail 2 so as to be horizontally rotatable via a shaft 4, and the walk-in lever 3 is trifurcated and has an outer end 3A.
One end of a flexible wire 6 inserted through the guide hole 5A of the guide 5 is connected to the guide 5, and the other end of the flexible wire 6 is connected to a reclining device (not shown). A memory pin 7 is suspended from the lower surface of the inner end 3B of the walk-in lever 3, and a slide wire 8 is connected to the locking means of a slide mechanism (not shown) consisting of a lower rail and an upper rail on the opposite side. I'm in touch. The walk-in lever 3 is biased in the rotating direction of the arrow in FIG. 7 by a tension spring 9 that is placed between the guide 5 and the walk-in lever 3. On the other hand, from lower rail 1 there is memory plate 1.
0 is extended to the side, and the memory plate 10 is movable up and down and is urged upward by a spring (not shown).

In the above configuration, when the lever of the reclining device is operated to tilt the seat back forward, the flexible wire 6 connected to the reclining device is pulled, and the walk-in lever 3 is rotated in the opposite direction of the arrow in FIG. . When the locking means of the slide mechanism is pulled and released by the slide wire 8 as the walk-in lever 3 rotates, the upper rail 2 is automatically moved forward with respect to the lower rail 1 by a slide help spring (not shown). By sliding, the seat slides forward, resulting in a so-called walk-in. In this state, as shown in FIG.
It is locked from rotating in the direction of the arrow in the figure, and thus the locking means of the slide mechanism also remains released. Therefore, the upper rail 2 is in a slidable state. When the seat is slid rearward, the upper rail 2 also slides rearward, but the memory pin 7 of the walk-in lever 3 disengages from the memory plate 10 of the lower rail 1. At this position, the locking of the walk-in lever 3 by the memory pin 7 is released, and the walk-in lever 3 is pulled in the direction of the arrow in Fig. 7 by the tension spring 9, returning to the state shown in Fig. 7, and the slide mechanism is in this position. , i.e. locked at a memory location.

When the seat is to be slid back and forth in a state of use other than the above-mentioned walk-in, the lock of the slide mechanism is released using another release lever, but at this time, the upper rail 2 continues to slide back and forth in the state shown in FIG. The memory pin 7 of the walk-in lever 3 slides back and forth over the memory plate 10 of the lower rail 1 by pushing it down.

[Problem that the invention attempts to solve]

In the conventional memory mechanism described above, the memory position is fixed at one location as described above, and there is a problem in that an arbitrary position cannot be memorized.

[Means for solving problems]

The present invention, as a means to solve the above-mentioned conventional problems, includes: a lower rail 11; An abutting piece 22 is attached to the lower rail 11 and is removably fit into a locking hole 11A provided on the side surface of the lower rail 11, with an abutting piece 22 hanging down from the middle part.
A locking piece 20 that is biased in the insertion direction; and a memory hole 3 that is provided so as to be slidable back and forth along the lower rail 11 and that the locking piece 20 penetrates at a predetermined position.
3 and a locking groove 34 on the lower edge, and a memory band 30 which is attached to a rotation shaft 40 provided along the lower rail 11 and has an edge inside the rotation shaft 40. The locking plate 41 is formed with locking teeth 42 that engage with the locking groove 34 of the memory band 30, and the outside of the rotation shaft 40 is in contact with the locking piece 20 of the upper rail 12. A memory mechanism for the seat sliding position is provided, which is comprised of a rotary plate 43 which serves as a contact portion against which the piece 22 contacts.

[Effect]

The function of the present invention is as follows.

1 Locking the sliding position during use When the locking piece is forcefully fitted into the locking hole of the lower rail at a predetermined position, the sliding position of the seat is locked at that position.

2 Slide during use When the locking piece is pulled out from the locking hole of the lower rail from the locked slide position above, but the locking piece is not pulled out from the memory hole of the memory band, and the slide lock is released, the seat will slide. It becomes possible. As the seat slides, the upper rail slides back and forth with respect to the lower rail, and at this time, the locking piece of the upper rail also slides back and forth. As the locking piece slides back and forth, the memory band also slides back and forth through the memory hole as the seat slides. After sliding the seat to an arbitrary slide position, the locking piece is inserted into the locking hole of the lower rail with biasing force. Naturally, the memory hole of the memory band also moves to this position along with the locking piece. In this way the seat is locked in its new sliding position.

3 Walk-in When the locking piece is pulled out from the locking hole of the lower rail and the memory hole of the memory band from the locked slide position, the upper rail slides to the front end of the slide position due to the biasing force. However, the locking piece does not penetrate through the memory hole of the memory band, and when the locking piece is pulled out from the memory hole of the memory band, the contact piece of the locking piece touches the outside of the rotation axis of the locking plate. The locking plate comes into contact with the connecting part and is pushed to rotate the locking plate outward. In this way, the locking teeth of the locking plate engage with the locking grooves of the memory band, thereby causing the memory band to slide back and forth. Lock the movement. Therefore, regardless of the person walking in to the front of the seat, the memory band does not slide back and forth and the memory hole is fixed at the sliding position described in 2. That is, this position becomes the memory position.

4 Return to memory position The seat that you walked in to is at the front end of the slide position, but from this position, slide the seat backwards. At this time, the locking piece of the upper rail comes into contact with the memory band and cannot be inserted into the locking hole of the lower rail, and only when it reaches the memory hole position does the locking piece penetrate the memory hole with a biasing force. Then, the sliding position is locked by fitting into the locking hole of the lower rail. This position is nothing but the position memorized in step 3. It becomes impossible to lock the sliding position of the seat at any position other than the memorized position.

[Effect of idea]

Since the present invention memorizes the sliding position of the seat based on the position of the memory hole in the memory band as described above, it is possible to memorize any position over substantially the entire sliding width of the seat. Since the memory band is locked by the slide lock mechanism of the seat, the structure is extremely simple. Furthermore, since the memory band is locked at the memory position by the locking plate, the memory band is securely fixed at the memory position even if the sliding resistance of the memory band is reduced.

〔Example〕

The present invention will be explained with reference to an embodiment shown in FIGS. 1 to 6. Reference numeral 11 denotes a lower rail, and an upper rail 12 is slidably mounted on the lower rail 11. A spring fixing piece 13 is extended from the rear of the upper rail 12, and one end of the spring fixing piece 13 is attached to the bottom of the front of the lower rail 11. A slide help spring 14 connected to the edge is connected. The upper rail 12 is urged forward by the slide help spring 14.
20 is a locking piece, and the tip of the locking piece 20 has a pair of locking claws 20A and 20B as shown in FIG.
A spring seat 21 with an abutment piece 22 extending downward is provided at the intermediate portion, and an abutment wall 23 is provided upright at the outer end. The locking piece 20
A guide hole 26A in the outer wall 26 of the guide piece 25 extending outward from the middle part of the upper edge of the upper rail 12 and an intermediate wall 27 hanging down from the middle part of the guide piece 25.
The locking claw 20 is guided by the guide hole 27A of the
A, 20A can be fitted into and removed from a locking hole 11A provided on the side surface of the lower rail 11, and normally, as shown in FIG. 2, the spring seat 21 of the locking piece 20
and the outer wall 26 of the guide piece 25, and is biased in the direction of insertion into the locking hole 11A. 30 is a memory band provided along the lower rail 11, a memory hole 33 through which the locking piece 20 passes is provided at a predetermined position of the memory band 30, and a locking groove 34 is provided at the lower edge of the memory band 30. It is set up. The memory band 30 can be wound around a roll 31 placed at the front or a roll 32 placed at the rear. The upper and lower edges are guided by grooves 28A formed between the inner wall and the upper and lower edges so that the inner wall can freely slide in the front and rear directions. Reference numeral 40 denotes a rotation shaft, and the rotation shaft 40 is rotatably supported by supports 11C, 11C extending outward from the front and rear lower portions of the lower rail 11, and is biased inward by a spring 40A. has been done. A locking plate 41 is provided on the inner edge of the rotating shaft 40, and locking teeth 4 that engage with the locking groove 34 of the memory band 30 are provided at the upper edge of the locking plate 41.
2, a rotating plate 43 is provided on the outer edge of the rotating shaft 40, and the abutting piece 22 of the locking piece 20 comes into contact with the rotating plate 43. .
Reference numeral 50 denotes a lock release lever, and one end of a wire 52 is connected to the rear end of the operating rod 50A of the lock release lever 50 via a connecting piece 51.
The other end is attached to the upper rail 12 as shown in FIG.
The reclining device 61 of the seat 60 mounted above is contacted. Further, the operating rod 50A is provided with an operating piece 53 that abuts against the abutting wall 23 of the locking piece 20.

In the above configuration, the lock release lever 50 is
When operated in the direction of arrow A in the figure, the operating rod 50A rotates, and as shown in FIG. The locking claws 20A, 20A of the locking piece 20 are pulled out from the locking hole 11A of the lower rail 11 by resisting and pushing outward, but the locking piece 20 is not pulled out from the memory hole 33 of the memory band 30. The slide lock of the seat 60 is released in the state where the seat 60 is closed. At this time, the seat 60 can be slid back and forth. As the seat 60 slides, the upper rail 12 slides back and forth with respect to the lower rail 11, and at this time, the locking piece 20 also slides back and forth at the same time via the guide piece 25 extended from the upper rail 12. As the locking piece 20 slides back and forth, the memory band 30 also slides back and forth through the memory hole 33 as the seat slides. When the seat 60 is slid to an arbitrary slide position, the release lever 50 is returned to its original state and the locking piece 20 is fitted into the locking hole 11A of the lower rail 11 again by the biasing force of the spring 29. In this way, the seat 60 is locked at the new sliding position, but the memory hole 33 of the memory band 30 has also moved to this position along with the locking piece 20.

Next, when the lever 62 of the reclining device 61 of the seat 60 is operated in the sliding position of the arbitrary seat 60 described above, the wire 52 is pulled and the operating rod 50A is rotated via the connecting piece 51, as shown in FIG. state, that is, the operating piece 5 of the operating rod 50A.
3 presses the contact wall 23 of the locking piece 20 outward against the biasing force of the spring 29 and pulls out the locking piece 20 from the locking hole 11A of the lower rail 11 and the memory hole 33 of the memory band 30. Then, the slide lock is released, and the upper rail 12 automatically slides forward with respect to the lower rail 11 by the slide help spring 14. At this time, the seat 60 slides forward along with the upper rail 12 and becomes a walk-in state. At this time,
The locking piece 2 is also inserted from the memory hole 33 of the memory band 30.
0 has been pulled out, and when the locking piece 20 is pulled out from the memory hole 33, the abutting piece 22 of the locking piece 20 abuts the abutting portion of the rotating plate 43 on the outside of the rotating shaft 40. By pushing the rotating plate 43 outward, the rotating shaft 40 is rotated in the direction of arrow B in FIG.
The locking tooth 42 of the locking plate 41 is inserted into the locking groove 3 of the memory band.
4, the memory band 30 is prevented from sliding in the front-back direction. Therefore, seats 60
Although the memory band 30 is sliding forward,
is fixed at the original sliding position of the seat, and this position becomes the memory position of the seat 60.

To return the seat 60 to its original sliding position, the seat 60 is slid rearward via the upper rail 12. At this time, the locking piece 20 comes into contact with the memory band 30 and is prevented from fitting into the locking hole 11A of the lower rail 11, and it is not until the seat 60 reaches the original sliding position, that is, the memory position. The locking piece 20 passes through the memory hole 33 due to the biasing force of the spring 29, and the locking piece 20 is inserted into the lower rail 1.
1 into the locking hole 11A. In this way, the seat 60 is locked again in its original sliding position (memory position).

The present invention is not limited to the above embodiments, but
For example, a locking plate 4 provided on the inner edge of the rotation shaft 40
1 may be provided on the entire inner edge or may be provided only on a part of the inner edge.

[Brief explanation of drawings]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a front sectional view, FIG. 3 is a front sectional view in a normal seat sliding state, and FIG. Fig. 4 is a front sectional view in the walk-in state, Fig. 5 is a perspective view showing the relationship between the lower rail and the locking piece, Fig. 6 is a side view in the seat mounted state, and Fig. 7
8 show a conventional example, FIG. 7 is a perspective view, and FIG. 8 is a perspective view in a walk-in state. In the figure, 11...lower rail, 11A...locking hole, 12...upper rail, 20...locking piece,
22... Contact piece, 30... Memory band, 33...
Memory hole, 34...locking hole, 40...rotation shaft,
41... Locking plate, 42... Locking teeth, 43... Rotating plate.

Claims (1)

[Scope of utility model registration request] A lower rail, an upper rail that is slidably mounted on the lower rail, has a seat mounted on top and is urged forward, and is attached to the upper rail and can be fitted into and removed from a locking hole provided on the side of the lower rail. An abutment piece is suspended from the middle part, and the locking piece is biased in the direction of insertion into the locking hole, and the locking piece is provided so as to be slidable back and forth along the lower rail and is positioned at a predetermined position. A memory band is provided with a memory hole passing through it and a locking groove is provided on the lower edge, and a memory band is attached to a rotating shaft provided along the lower rail and is attached to the inner edge of the rotating shaft. consists of a locking plate on which locking teeth are formed that engage with the locking groove of the memory band, and an abutment portion on the outside of the rotation axis that is in contact with the abutment piece of the locking piece of the upper rail. A memory mechanism for the seat sliding position, which is characterized by comprising a rotating rotating plate.