JP3104737B2 - Lock mechanism for seat slide device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking mechanism for a seat slide device. More specifically, a fixed rail is provided from the front to the rear of a vehicle floor surface, and a slide that moves back and forth along the fixed rail. A moving member is provided, a seat is connected to the sliding member, a slide lock mechanism and an interlock member are provided between the fixed rail and the sliding member, and the seat cannot be seated in the locked state of the interlock member. The present invention relates to a lock mechanism for a seat slide device that cannot be moved to a proper range.

[0002]

2. Description of the Related Art In a conventional one-box car or the like,
Since both occupant loading and luggage loading are used, an average number of seats and luggage loading space are provided. There are cases where a detachable seat is provided in places other than the driver's seat and the passenger seat, and cases where a movable seat is provided.

[0003] When there is a lot of luggage, the seat provided with a detachable seat is removed, and the seat provided with a movable seat is moved forward to secure a luggage space. Such a seat apparatus is disclosed in Japanese Utility Model Laid-Open No. 4-131533 and Japanese Utility Model Publication No.
No. 11226 is known.

[0004] However, the detachable sheet requires a great deal of labor because the removal work is complicated, and the movable sheet moves on fixed rails so that the sheets are folded, so that the space for loading the luggage can be loaded. The efficiency of the increase is inferior, and in the case of a movable seat, when a slide lock is operated in a sitting posture, there is a risk that an occupant will be pinched between other seats.

In the vehicle seat device disclosed in Japanese Utility Model Laid-Open Publication No. 4-131533, Japanese Utility Model Publication No. Hei 6-11226, etc., the slide lock is released only when the seat cushion is lifted up. Because
In a normal sitting state, there is a disadvantage that the front-back position adjustment is complicated.

For this reason, a range where the seat can be seated and a range where the seat cannot be seated are provided on the fixed rail, an interlock member is provided on the sliding member, and the seat is seated in a locked state of the interlock member. There has been proposed a lock mechanism for a seat slide device that cannot be moved to an impossible range.

As shown in FIGS. 7 (a) and 7 (b), a lock mechanism of a conventional seat slide device includes a slide lock mechanism 1 and an interlock member 2, and the slide lock mechanism 1 is located in front of a vehicle floor. A slide lock hole 5 is formed in the upper horizontal piece 3a of the fixed rail 3 provided further rearward.
The latch claw 8 of the slide lock latch 7 is urged upward from below toward the sliding member, and the latch claw 8 of the slide lock latch 7 is
It is locked in the slide lock hole 5 of FIG.

[0008] Further, the interlock member 2 is shown in FIG.
As shown in (b), an interlock hole 3c provided in a lower horizontal piece 3b, which is the bottom of the fixed rail 3, and a latch claw 9a of an interlock latch 9 provided on the sliding member side. , This interlock latch 9
Of the interlock latch 9 is pressed downward from above, and the latch claw 9a of the interlock latch 9 is
c.

In the slide lock mechanism 1 shown in FIG. 8, a lock plate 4 is fixed to a lower horizontal piece 3b of a fixed rail 3 provided from the front to the rear of the vehicle floor, and the slide lock hole 5 is fixed to the fixed rail. 3, formed on the lower horizontal piece 3 b and the lock plate 4, and urges the latch claw 8 of the slide lock latch 7 downward from above toward the sliding member side.
The latch claw 8 of the slide lock latch 7 is locked in the slide lock hole 5 of the lower horizontal piece 3b of the fixed rail 3.

The interlock member 2 has an interlock hole 4b on the side of the lock plate 4 which is a side of the fixed rail 3 and an interlock hole 4b provided on the slide member. And a latch claw 9a of the interlock latch 9 to be locked.

[0011]

In the conventional seat slide device, a range where the seat can be seated and a range where the seat cannot be seated are provided on the fixed rail 3, and the interlock member 2 is provided on the sliding member. A mechanism is required to prevent the seat from being seated by the interlock member 2 outside the range where the seat can be seated. Since the slide lock mechanism 1 and the interlock member 2 are provided at different positions, the number of parts and the number of processing steps are increased. However, the assembling work is complicated, and the cost is increased.

An object of the present invention is to form a slide lock mechanism and an interlock member on the same surface of a fixed rail, to reduce the number of parts and processing steps, to facilitate assembly work, to be economical, and to provide a space for loading cargo. An object of the present invention is to provide a lock mechanism for a seat slide device that can increase the efficiency.

[0013]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a locking mechanism for a seat slide device according to the first aspect of the present invention extends from the front to the rear of a vehicle floor surface. A fixed rail is provided, a sliding member that moves back and forth along the fixed rail is provided, a seat is connected to the sliding member, and a slide lock mechanism and an interlock member are provided between the fixed rail and the sliding member. In the lock mechanism of the seat slide device, wherein the seat cannot be moved to a range where the seat cannot be seated in the locked state of the interlock member, the slide lock mechanism includes a plurality of slide lock holes provided in the fixed rail. , A slide lock latch provided in the slide member and locked in the slide lock hole, wherein the interlock member is fixed. And an interlock latch provided in the sliding member and locked by the interlock hole. The slide lock hole of the slide lock mechanism and the interlock of the interlock member are formed. The lock hole is formed on the same straight line on the same surface in the longitudinal direction of the fixed rail.

According to a second aspect of the present invention, there is provided a lock mechanism for a seat slide device, wherein a pair of left and right fixed rails are provided from the front to the rear of the vehicle floor surface, and the left and right moving back and forth along the fixed rails. A pair of sliding members are provided, a seat is connected to the pair of left and right sliding members, and a slide lock mechanism and an interlock member are provided between the fixed rail and the sliding members. In the lock mechanism of the seat slide device, wherein the seat cannot be moved to a range where the seat cannot be seated, the slide lock mechanism includes a plurality of slide lock holes provided in the fixed rail, and the slide member provided in the slide member. A slide lock latch locked in a lock hole, and the interlock member is provided with an interlock provided on the fixed rail. And an interlock latch provided in the sliding member and locked in the interlock hole, wherein the slide lock hole of the slide lock mechanism and the interlock hole of the interlock member are fixed. The slide lock latch and the interlock latch have different widths formed on the same straight line on the same surface in the longitudinal direction of the rail.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A lock mechanism of a seat slide device according to the present invention will be described below in detail with reference to the drawings. 1 to 6 each show an embodiment of the present invention. As shown in FIG. 6, a vehicle seat 11 includes a seat cushion 12 and a seat back 13, and the seat back 13 is tilted forward and backward by a reclining mechanism 15. It has been made possible.

At the lower part of the seat cushion 12, a leg 17 which can be folded in the horizontal direction is provided, and this leg 17 is detachably attached to the sliding member 23. The leg 17
The present invention can be applied even when the sliding member 23 is of a fixed type.

Further, a plurality of vehicle seats 11 can be provided sequentially from the front to the rear of the vehicle floor surface. In this embodiment, one vehicle seat 11 will be described. The front-rear slide mechanism 21 includes a pair of left and right fixed rails 22 extending rearward from the front of the vehicle floor surface, and the pair of left and right sliding members fitted to the pair of left and right fixed rails 22 so as to be movable back and forth. 23.

The fixed rail 22 is, as shown in FIG.
An opening 22a is formed in the center of the upper part in a substantially square front,
It is fixed to the vehicle floor by the front and rear and side legs 24. A sliding member 23 is fitted to the fixed rail 22 so as to be able to move back and forth, and a range in which the vehicle seat 11 can be seated and a range in which the vehicle seat 11 cannot be seated are provided.

FIGS. 1 to 3 show a sliding member 23. The sliding member 23 is a plate member 2 bent substantially in an L-shape.
It has a main body 25 formed with vertical pieces 5a and 25a facing each other, and a pair of left and right rollers 29 supported by a shaft 27 at front and rear positions of the main body 25.

As shown in FIG. 2, the leg 17 and the sliding member 23
Is detachably attached by a seat lock 31. The seat lock 31 includes a hook member 33 operated by a lever 35 attached to the leg 17 and a striker 37 fixed to the rear end of the sliding member 23. In the embodiment shown in FIGS. 1 and 2, the sliding member 23 and the leg 17 are detachable by the seat lock 31, but as shown in FIG.
7 and 7 may be fixed.

As shown in FIG. 6, a slide lock mechanism 41 and an interlock member 53 are provided between the fixed rail 22 and the slide member 23. The slide lock mechanism 41 operates an operation lever 45. Can be unlocked, and the interlock member 5
The lock 3 can be released by tilting the seat back 13 forward or by lifting the seat.

The slide lock mechanism 41 includes a plurality of slide lock holes 43 provided in the fixed rail 22,
The slide lock hole 43 provided in the slide member 23
And two latch claws 47a, 47a of a slide lock latch 47 to be locked by the latch.

The slide lock latch 47 is vertically movably inserted into a concave portion 48 formed between the vertical pieces of the plate members 25a of the main body 25 of the sliding member 23. An engagement hole 47b is formed in the slide lock latch 47,
Engagement piece 51a at one end of substantially L-shaped first link member 51
Are engaged with the engagement holes 47b of the slide lock latch 47.

As shown in FIG. 1, the first link member 51 is pivotally supported on the main body 25 of the sliding member 23 by a pivot pin 71. In the embodiment shown in FIG. 3, the slide lock latch 47 is provided with a wire 49 connected to the operation lever 45.
Directly connected to Thus, the operation lever 4
However, the present invention is not limited to the configuration in which the first link member 51 is interposed between the wires 49 connected to the fifth link 5.

As shown in FIG. 3, the sliding member 23 and the leg 17
In the case where the first link member 51 is a fixed type, the first link member 51 can be omitted. A latch spring 62 is provided between the first link member 51 and the main body 25 of the sliding member 23, and the slide lock latch 47 is normally biased in the direction of the slide lock hole 43.

As shown in FIG. 2, an intermediate lever 50 is connected to a wire 49 connected to the operation lever 45, and the intermediate lever 50 is attached to the leg 17 in a pivotally supported state.
When the intermediate lever 50 is operated by operating the operation lever 45, the first link member 51 is rotated.

The interlock member 53 is formed from an interlock hole 55 provided in the fixed rail 22 and an interlock latch 57 provided in the sliding member 23 and locked in the interlock hole 55. I have.

The interlock member 53 is a sliding member 2
The third main body 25 is vertically movably inserted into a concave portion 58 formed between the vertical pieces of the plate members 25a, 25a. An engagement hole 53b is formed in the interlock member 53,
An engaging piece 61a at one end of the second link member 61 having a letter shape is engaged with the interlock member 53 in the engaging hole 53b.

The slide lock hole 43 of the slide lock mechanism 41 and the interlock hole 55 of the interlock member 53 are formed on the same straight line in the longitudinal direction, which is the bottom surface of the fixed rail 22, and slide. The lock latch 47 and the interlock latch 57 have different widths.

The second link member 61 and the sliding member 23
A latch spring 63 is provided between the main body 25 and the interlock latch 57, and the interlock latch 57 is normally urged toward the interlock hole 55. An intermediate lever 60 is connected to the wire 59, and the intermediate lever 60 is pivotally attached to the leg portion 17, and when the intermediate lever 60 is actuated by, for example, jumping up of a sheet, the second link member 61
Is rotated.

Incidentally, the urging means of the slide lock latch 47 and the interlock latch 57 is not limited to the one shown in FIG. 1, but may use latch springs 62 and 63 as shown in FIG. Good. In the figure, reference numeral 65 denotes a latch guide, 67 denotes a runner guide, and 69 denotes a molding.

As shown in FIGS. 4A, 4B and 4C,
The slide lock latch 47 and the interlock latch 57 are formed to have different widths. As an example, the slide lock latch 47 has two latch claws 47a, 47a.
And the width a of the latch claw 47a is
Is smaller than the width a1, and the entire width of the slide lock latch 47 is formed to be 2a or more.

The width b of the latch claw 57a of the interlock latch 57 is smaller than the width b1 of the interlock hole 55, and the width b of the latch claw 57a of the interlock latch 57 is larger than the width a1 of the slide lock hole 43. ing. The width b1 of the interlock hole 55 is smaller than the entire width 2a of the slide lock latch 47.

Accordingly, as shown in FIG. 4B, the pair of latch claws 47a of the slide lock latch 47 fit into the slide lock hole 43 but fit into the interlock hole 55 on the same straight line. In addition, as shown in FIG. 4C, the latch claw 57a of the interlock latch 57 fits into the interlock hole 55 but does not fit into the slide lock hole 43 on the same straight line.

The latch claw 57a of the interlock latch 57 is formed with a tapered portion 57b so that it can be moved in the direction of the tapered portion 57b of the interlock latch 57 without performing an unlocking operation. The tapered portion 57b may be provided in a direction opposite to the direction shown in the drawing, or may not have the tapered portion 57b.

As shown in FIG. 5, in the rearmost to frontmost positions (I) to (II), since the interlock hole 55 does not exist in the latch claw 57a of the interlock latch 57, the interlock latch 57 is locked off. The latch claw 47 of the slide lock latch 47 is in the state.
a and 47a are fitted in the slide lock holes 43 and are in a lock-on state.

In the front most position in the seating position (II), the latch claw 57a of the interlock latch 57 is fitted in the interlock hole 55 and is in the lock-on state. It is fitted in the slide lock hole 43 and is in a lock-on state.
Therefore, the operating lever 45 is operated to move the latch claws 47 a of the slide lock latch 47 into the slide lock holes 43.
And the latch claw 57a of the interlock latch 57 is in the lock-off state.
And is in a lock-on state, so that the vehicle seat 11 cannot be moved to a range where it cannot be seated.

Next, at the position (III), the seat back 13 is tilted forward or the entire seat is jumped up in the lateral direction.
By making the seating impossible state, the latch claw 57a of the interlock latch 57 can be in the lock-off state, and the operation lever 45 is operated so that the latch claws 47a of the slide lock latch 47 are moved to the slide lock holes 4a.
3, the vehicle seat 11 can be moved forward by setting the lock-off state.

[0039]

The embodiment of the lock mechanism of the seat slide device according to the present invention has been described above.
According to the lock mechanism of the seat slide device described in (1), since the slide lock hole of the slide lock mechanism and the interlock hole of the interlock member are formed on the same straight line on the same surface in the longitudinal direction of the fixed rail, parts It is possible to obtain a lock mechanism for a seat slide device that can reduce the number of points and the number of processing steps, facilitate the assembling work, is excellent in economy, and can increase the efficiency of increasing the space for loading a load.

According to the lock mechanism of the seat slide device of the present invention, the slide lock hole of the slide lock mechanism and the interlock hole of the interlock member are on the same surface in the longitudinal direction of the fixed rail. Since the slide lock latch and the interlock latch are formed to have different widths on the same straight line, the number of parts and the number of processing steps are reduced, the assembling work is easy, the economy is excellent, and the locking mechanism is provided. The lock mechanism of the seat slide device can be obtained in which the lock-on and lock-off operations can be easily, quickly, and reliably performed, and the efficiency of increasing the space for loading the cargo can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state in which a lock mechanism of a seat slide device according to the present invention is applied to a leg side-leaching type seat of a vehicle seat.

FIG. 2 is a perspective view showing a state in which the lock mechanism of the seat slide device according to the present invention is applied to a leg side-leaching type seat of a vehicle seat.

FIG. 3 is a side view of a state in which the lock mechanism of the seat slide device according to the present invention is applied to a leg-fixed seat of a vehicle seat.

4A and 4B show a lock mechanism of the seat slide device according to the present invention, wherein FIG. 4A is a partial perspective view, FIG. 4B is a side view for explaining the operation of a slide lock latch, and FIG. FIG.

FIG. 5 is an explanatory side view showing a locked state in a vehicle cabin in which a lock mechanism of the seat slide device according to the present invention is applied to a leg-fixed seat of a vehicle seat.

FIG. 6 is a side view of a state in which the lock mechanism of the seat slide device according to the present invention is applied to a leg-fixed seat of a vehicle seat.

7A and 7B show a lock mechanism of a conventional seat slide device, wherein FIG. 7A is a cross-sectional view of the slide lock mechanism, and FIG.
3 is a cross-sectional view of the interlock member.

FIG. 8 is a sectional view showing a lock mechanism of a conventional seat slide device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Vehicle seat 15 Reclining mechanism 17 Leg part 21 Front-back sliding mechanism 22 Fixed rail 23 Sliding member 25 Body part 29 Roller 41 Slide lock mechanism 43 Slide lock hole 45 Operation lever 47 Slide lock latch 49 Wire 53 Interlock member 55 Interlock Hole 57 interlock latch 59 wire

──────────────────────────────────────────────────続 き Continued on the front page (56) References Japanese Utility Model 7-27934 (JP, U) Japanese Utility Model 4-26131 (JP, U) Japanese Utility Model 7-21425 (JP, U) Japanese Utility Model 7-21425 27933 (JP, U) Japanese Utility Model 7-27935 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B60N 2/06-2/08

Claims (2)

(57) [Claims] 1. A fixed rail is provided from the front to the rear of a vehicle floor surface, a sliding member is provided for moving back and forth along the fixed rail, and a seat is connected to the sliding member. A slide lock mechanism and an interlock member provided between the slide lock member and the slide member, and wherein the seat cannot be moved to a range where the seat cannot be seated in the locked state of the interlock member. The mechanism is formed of a plurality of slide lock holes provided in the fixed rail, and a slide lock latch provided in the sliding member and locked in the slide lock hole, and the interlock member is provided in the fixed rail. And an interlock latch provided in the sliding member and locked in the interlock hole. The lock of the seat slide device, wherein the slide lock hole of the slide lock mechanism and the interlock hole of the interlock member are formed on the same straight line on the same surface in the longitudinal direction of the fixed rail. mechanism. 2. A pair of left and right fixed rails are provided from the front to the rear of the vehicle floor surface, and a pair of left and right sliding members moving back and forth along the fixed rails are provided. A seat lock is provided between the fixed rail and the sliding member, and a slide lock mechanism and an interlock member are provided between the fixed rail and the sliding member so that the seat cannot be moved to a non-seatable range in a locked state of the interlock member. In the lock mechanism of the device, the slide lock mechanism is formed of a plurality of slide lock holes provided in the fixed rail, and a slide lock latch provided in the slide member and locked in the slide lock hole, The interlock member is interlocked with the interlock hole provided in the fixed rail and the interlock hole provided in the sliding member. A slide lock hole of the slide lock mechanism and an interlock hole of the interlock member are formed on the same straight line on the same surface in the longitudinal direction of the fixed rail,
A lock mechanism for the seat slide device, wherein the slide lock latch and the interlock latch have different widths.