JP3219239B2 - Vehicle 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 seat slide device for a vehicle, and more particularly to a seat slide device capable of selecting a moving range of a vehicle seat.

[0002]

2. Description of the Related Art RV (Recreational Vehicle)
In many vehicles and the like, rear seats are provided in two rows in front and rear so that many occupants can board. In this case, the front and rear rear seats can be freely moved in the front and rear directions by a seat slide device so that the interior of the vehicle can be effectively used according to the number of passengers and the amount of luggage.

[0003] Incidentally, when the occupant is seated on the rear rear seat, it is necessary to limit the rearward movement range of the front rear seat to avoid interference with the occupant.
When the occupant is not seated on the rear rear seat, it is desirable to maximize the range of movement of the front rear seat to the rear and ensure comfortable comfort.

For example, Japanese Unexamined Patent Publication No. Hei 6-336131 proposes a method in which a stopper which can be attached to and detached from a slide rail is prepared, and the stopper is attached to a predetermined position of the slide rail to limit a moving range of a vehicle seat. ing.

[0005]

However, in the seat slide device proposed above, it is necessary to attach and detach the stopper each time depending on whether or not the moving range of the vehicle seat is limited, so that it takes time and effort, and when the seat is not in use. There is a problem that the storage of the stopper is complicated.

SUMMARY OF THE INVENTION The present invention solves the above-described problems, and enables a vehicle operator to quickly select whether or not to limit the movement range of a vehicle seat by a simple operation, and does not require labor such as storage of a stopper. It is an object of the present invention to provide a seat slide device.

[0007]

Means for Solving the Problems In order to achieve the above object, in the first invention, the upper rails (1A, 1B) provided on the lower surface of the vehicle seat (S) are replaced with the lower rails (1) provided on the vehicle floor (F). 2A, 2B) a positioning means (5, 211, 212) for positioning the vehicle seat (S) at a predetermined moving position in a seat slide device in which the vehicle seat (S) is made movable by sliding on the vehicle seat (S). First operating means (3A, 3B) for operating the positioning means (5);
A movement restricting means (7, 22) for restricting the movement of the vehicle seat (S) within a predetermined range, and a second operating means (4) for selecting operation or non-operation of the movement restricting means (7, 22). Provided ,
And the movement restricting means is excluded from the moving end of the vehicle seat (S).
In the intermediate position, the vehicle seat (S) side or vehicle flow
A) a stopper (22) provided on one side of the (F) side;
The vehicle (S) side or the vehicle floor (F) side
The vehicle seat (S) is provided when the vehicle is in the advanced position.
Abuts on the stopper (22) during the movement of the
Movement restriction piece (7) for restricting further movement of (G)
And the movement limiting piece (7) is attached to the upper rail.
(1A, 1B) was installed between the bearings (142) provided
It is supported by the rotating shaft (143) and is provided to be tiltable and rotatable.
A second operating means (4) is connected to one end of the movement limiting piece (7).
And at the same time, move to abut and engage the stopper (22).
The other end (73) of the restriction piece (7) is substantially
Openings (11) formed in the upper rails (1A, 1B).
2).

In the first invention, the vehicle seat is positioned at a predetermined moving position by operating the positioning means. The moving range of the vehicle seat is restricted by the movement restricting means.
Activating or deactivating the movement restricting means by means of the operation means (1) allows quick operation. Therefore, unlike the related art, it is not necessary to attach or detach the stopper depending on whether or not the movement of the vehicle seat is restricted, or to separately store the detached stopper. Also, abut against the stopper
By selecting and moving the movement restriction piece into and out, the vehicle
Simple and quick to determine whether to limit the movement range of both seats
You can choose. In addition, the other end of the movement restriction piece
Even if a strong impact is received when it comes into contact with the topper,
Is in contact with the opening edge adjacent to this
As a result of the restricted displacement, deformation of the bearing is prevented.
Is stopped.

[0009]

[0010]

In the second invention, the vehicle seat (S) is a bench seat for two persons, and the second operating means (4) is provided solely between adjacent seating portions of the vehicle seat (S). And are connected to movement restriction pieces (7) provided on the left and right upper rails (1A, 1B).

In the second aspect of the present invention, the movement restricting pieces provided on the left and right upper rails can be simultaneously operated by the single second operating means, and the selection of the movement restriction and the release thereof can be smoothly performed.

In the third invention, the second operating means (4)
Is for retracting the movement restricting piece (7) to a position where it does not come into contact with the stopper (22).

In the third aspect of the present invention, the movement restricting piece always advances when the second operating means is not operated, and abuts on the stopper during the movement of the vehicle seat to restrict further movement. I do. Therefore, even if the user forgets to operate the second operation means, the vehicle seat does not move more than necessary.

[0015] In the fourth invention, the stopper (22) and at least one of the shape of the movement restriction member (7), the stopper is when the vehicle seat (S) returns to the movement restriction range (2
2) The shape is set so that even if the movement limiting piece (7) abuts, the two are not engaged.

In the fourth aspect of the present invention, when the movement restriction is released and the vehicle seat moves out of the movement restriction range and then returns to the movement restriction range again, the movement restriction is operated by operating the second operating means. It is not necessary to keep the pieces retracted, and the complexity of the operation is reduced.

[0017]

FIG. 1 shows an appearance of a front rear seat (hereinafter simply referred to as a rear seat) of a vehicle in which a seat slide device of the present invention is provided. The rear seat S is a bench seat for two persons, and upper rails 1A and 1B, whose internal structure will be described in detail later, are provided on the lower surfaces of the left and right ends of the seat cushion S1. These upper rails 1
A and 1B are slidably mounted on left and right lower rails 2A and 2B extending in the front-rear direction on the vehicle floor F, and the rear seat S can move back and forth on the lower rails 2A and 2B. The inside of the left and right upper rails 1A, 1B,
Below the seat cushion S1, positioning operation levers 3A and 3 serving as first operation means with their tips bent outward.
B are provided forward, respectively, and below the center of the seat cushion S1, an operation lever 4 as a second operation means for releasing movement restriction is provided.

As shown in FIG. 2, the left and right upper rails 1A and 1B are plate bodies having a rail body 11 in a vertical posture, and the mounting seats 12 and
13 are formed. Each of the operation levers 3A and 3B extends rearward (only one is shown) along the plate surface of the rail main body 11 of the upper rails 1A and 1B, and a rear end thereof constitutes a positioning means and reaches a positioning piece 5 which will be described in detail later. Also,
The left and right operation levers 3A and 3B have operation bars 32 provided on the respective rod portions 31 connected to each other by wires 61 and 62. An operation bar 32 is provided on each upper rail 1A, 1B.
Movement restriction pieces 7 which will be described in detail later are provided at positions close to the
3, 64 are connected to the operation lever 4. Note that the upper rails 1A and 1B and the lower rails 2A and 2B have the same structure.

FIG. 3 is a detailed perspective view of the right upper rail 1A and the lower rail 2A, and FIG. 4 is a perspective view in which the operation lever 3A and the positioning piece 5 are omitted. In FIG. 3, an operation lever 3A is provided on a bracket 1 provided at a front-rear position on an inner side surface of a rail body 11 of an upper rail 1A.
The rear end of the rod portion 31 is bent outward to penetrate the plate surface of the positioning piece 5. The positioning piece 5 is a long plate, and as shown in FIG.
Grommet 152, 153 provided on the upper and lower sides of 5, respectively
And the rear end of the rod portion 31 of the operating lever 3A inserted into the through hole 51 in the plate surface is rotated as shown by the arrow in the figure (between the solid line and the chain line in the figure). ) Is operated up and down according to the above.

As shown in the drawing, the lower end of the positioning piece 5 is inserted into the opening 211 of the positioning panel 21 (FIG. 3) provided along the inner side surface of the lower rail 2A in the state of being operated downward. The movement of the upper rail 1A is restricted. The openings 211 and 212 are provided in the positioning panel 21.
Are provided in the longitudinal direction of the opening 212 at the rearmost end.
Except for, they are provided at equal intervals.

The operating lever 3A is rotated by a coil spring 33 disposed between a convex piece 311 (FIG. 3) provided on the rod portion 31 and a plate surface of the rail body 11 so as to push the positioning piece 5 downward. It is being rushed. When the rear seat S is moved, the operation lever 3A is rotated by the front end operation unit 34 against the spring force of the coil spring 33,
The positioning piece 5 is pulled out from the opening 211 of the positioning panel 21. Thereby, the rear seat S can be moved.
After moving the rear seat S to an appropriate position,
4, the operation lever 3 </ b> A is returned by the coil spring 33 and the positioning piece 5 is moved to the positioning panel 2.
The rear seat S is inserted into the other opening 211, and the rear seat S is fixed at this position.

As shown in FIG. 3, wires 61, 6 extending from the operation bar of the other operation lever 3B are provided at the upper and lower ends of the operation bar 32 provided on the rod portion 31 of the operation lever 3A.
2, the wires 61 and 62 intersect in the middle (FIG. 2), and are vertically connected to the operation bar of the other operation lever 3B. Therefore, when one of the operation levers 3A to 3B is rotated to pull out the positioning piece 5 from the opening 211 of the positioning panel 21, the other operation lever 3B to 3A is rotated to pull out the positioning piece 5 on this side. As a result, the positioning pieces 5 on both sides are simultaneously pulled out, and smooth sheet movement is guaranteed.

The rail body 11 of the upper rail 1A
As shown in FIG. 5, two plate members are joined together, and the lower end 111 of each plate member is bent in the horizontal direction so that the inverted T
It has a character cross section. The lower rail 2A is the rail body 11
Has a substantially U-shaped cross-section enclosing the lower end 111 of the roller, and a roller 23 and balls 24, 25 interposed therebetween,
The upper rail 1A holds the lower rail 2 while maintaining the vertical posture.
You can move along A.

In FIG. 4, the movement restricting piece 7 is located in the opening of the bracket 14 and the plate surface of the rail body 11 of the upper rail 1A. The details are shown in FIG.
Is formed by bending a plate body, the upper half 71 linearly extends upward and has a through hole 711 for wire attachment at the upper end. The lower half 72 of the movement restriction piece 7 extends downward while curving into the opening 112 on the plate surface of the rail main body 11, and the lower end 73 is bent like a hook and protrudes from the plate surface of the rail main body 11 onto the positioning panel 21. I have. The front and rear width of the lower end 73 and the opening 1
The front and rear widths of 12 are almost the same size. Movement restriction piece 7
The intermediate position of the lower half 72 is supported by a rotating shaft 143 spanned between bearing portions 142 (only one of which is shown in FIG. 4) at the front and rear opening edges of the bracket 14, and as shown by a chain line in FIG. The rail body 11 can be tilted and turned inward away from the plate surface. The movement restricting piece 7 includes an upper end and the bracket 1.
4 is urged by the coil spring 74 provided in the upright position shown by the solid line in FIG.

A stopper 22 is formed on the inner edge of the positioning panel 21 by cutting and raising a part in the longitudinal direction (FIGS. 3 and 4).
(Left side in FIG. 7) is an upright plane, and the rear side 22b
Is a curved surface that bulges backward and goes downward. In the upright posture, the movement restricting piece 7 is at a position where its lower end 73 interferes with the front side surface 22a of the stopper portion 22 when the upper rail 1A moves rearward (FIG. 8). Therefore, in a state where the movement restriction piece 7 is upright, the upper rail 1A
The movement restricting piece 7 can be moved only within a range until the lower end 73 comes into contact with the stopper portion 22, and the movement backward is restricted. As is apparent from FIG. 8, the lower end 73 of the movement restricting piece is formed so that the front side corner portion 731 is formed obliquely, while the stopper portion 22 moves away from the plate surface of the rail main body 11 toward the rear, that is, It is inclined so that it moves out of the movement locus of the movement restriction piece lower end 73.

In FIG. 3, an operation lever 4 provided at the center of the seat is rotatably operated in a horizontal plane with an intermediate position pivotally supported by a seat frame (not shown). The distal end of the wire 63 is connected to the rear end of the operation lever 4. A distal end of a wire 64 extending from a movement restricting piece provided on an opposite upper rail (not shown) is connected to the operation lever 4 at a position forward of a shaft fulcrum. Therefore, when the operation lever 4 is rotated clockwise in the drawing, the upper ends of the left and right movement restriction pieces 7 are both pulled inward by the two wires 63 and 64, and the both movement restriction pieces 7 are tilted inward. The lower end 73 of the lever is retracted to a position where it does not interfere with the stopper portion 22, as shown by the chain line in FIG. Thereby, the movement limiting piece 7 is moved beyond the stopper portion 22.
Can be moved, and the upper rail 1A, that is, the rear seat S can be largely moved backward.

In such a seat slide device,
When the occupant is sitting on the rear rear seat, one of the left and right operation levers 3A and 3B is rotated to pull out the positioning piece 5 from the opening 211 of the positioning panel 21. In this state, the front rear seat S is
Can be moved back and forth only within a range until it comes into contact with the stopper portion 22. By inserting the positioning piece 5 into the desired opening 211 of the positioning panel 21, the front rear seat S
Is fixed at a desired movement position. Since the rearward movement of the front rear seat S is restricted within a predetermined range by the movement restricting piece 7 and the stopper portion 22, it is possible for the front rear seat S that has moved rearward to interfere with the occupant sitting on the rear rear seat. Absent. Even if a strong impact is received when the movement limiting piece 7 comes into contact with the stopper portion 22, the hook-shaped lower end 7
3 abuts against the edge of the opening 112 adjacent thereto, and excessive displacement of the movement restricting piece 7 is regulated.
Is prevented from being deformed.

When the occupant is not seated on the rear seat, the operating lever 4 at the center of the left or right seating portion is simultaneously operated together with one of the left and right operating levers 3A and 3B. As a result, the positioning pieces 5 are positioned on the positioning panel 2.
At the same time as being pulled out from the first opening 211, the movement restricting piece 7 is tilted inward and the lower end 73 is retracted to a position where it does not interfere with the stopper 22. As a result, the front rear seat S can be largely moved to the rearmost position close to the rear rear seat. When the positioning piece 5 is inserted into the rearmost opening 212 of the positioning panel 21, the front rear seat S comes close to the rear rear seat. Is fixed at the position where Thereby, comfortable living comfort can be secured.

The rearward movement of the upper rail 1A is caused by the roller 23 (FIG. 7) rolling in contact with the lower end 111 of the rail main body, between the protrusion 113 formed on the lower end 111 of the rail main body and the caulking member 26 provided on the lower rail 2A. On the other hand, the upper rail 1A is stopped by being sandwiched therebetween, and the forward movement of the upper rail 1A is stopped by being sandwiched between the protrusion 114 of the lower end 111 of the rail body and the protrusion 25 of the bottom wall of the lower rail 1A.

In order to return the front rear seat S forward from the last position, one of the left and right operating levers 3A to 3
By operating only B, the positioning piece 5 is pulled out from the opening 212 of the positioning panel 21, and the front rear seat S is moved forward. The front corner 731 of the lower end 73 of the movement limiting piece abuts against the rear side surface 22b of the stopper 22 during the movement, but the slope of the former is pushed by the curved surface of the latter, and the movement limiting piece 7 automatically tilts, and the lower end thereof. 73 is evacuated. As a result, the front rear seat S can be returned to the front position without operating the operation lever 4 at all.

The seat to which the present invention can be applied is not limited to the front rear seat. Also,
In the above embodiment, the positioning means is constituted by the positioning pieces 5 and the openings 211 and 212 into which the positioning pieces are inserted. However, the present invention is not limited to such a structure. In the above embodiment,
Although the description has been given of the case where the range of moving the seat backward is limited, the present invention can also be applied to the case where the range of moving the seat forward is limited. The movement restricting means is not limited to the movement restricting piece 7 and the stopper 22, and various structures can be adopted. Further, the movement limiting piece 7 may be provided on the lower rails 2A, 2B, and the stopper 22 may be provided on the upper rails 1A, 1B. Further, it is also possible to adopt a structure in which the movement restricting piece 7 is advanced by the operation lever 4. In the above embodiment, the lower end corner 7 of the movement restricting piece 7
31 is a slope and the rear side surface 22b of the stopper 22
Is a curved surface, the lower end 73 of the movement restriction piece 7 is automatically retracted when returning from outside the movement restriction range to the rear within the movement restriction range. A slope or a curved surface may be formed only on one side, and the lower end 73 of the movement restriction piece may be retracted.

[0032]

As described above, according to the vehicle seat slide device of the present invention, whether or not to restrict the moving range of the vehicle seat can be quickly selected by a simple operation, and the restriction of the moving range is released. In this case, it is not necessary to remove and store the stopper.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a front rear seat of a vehicle.

FIG. 2 is an overall perspective view of the seat slide device.

FIG. 3 is an enlarged perspective view of one rail.

FIG. 4 is an enlarged perspective view of one rail portion excluding a positioning piece and the like.

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a sectional view taken along the line VI-VI of FIG. 4;

FIG. 7 is a side view of a main part of the lower rail.

FIG. 8 is a plan view of a main part of a lower rail.

[Explanation of symbols]

1A, 1B: Upper rail, 2A, 2B: Lower rail,
211, 212: opening, 22: stopper, 3A, 3B ...
Operating lever, 4 ... Operating lever, 5: Positioning piece, 7: Movement limiting piece, F: Vehicle floor, S: Front rear seat.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 7-40247 (JP, U) JP-A 2-56027 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B60N 2/06

Claims (4)

(57) [Claims] 1. An upper rail (1A, 1B) provided on a lower surface of a vehicle seat (S) is slid on a lower rail (2A, 2B) provided on a vehicle floor (F) so that the vehicle seat (S) is moved. In a movable seat slide device, positioning means (5, 211, 212) for positioning the vehicle seat (S) at a predetermined moving position, and first operating means (5) for operating the positioning means (5). 3A, 3
B), a movement restricting means (7, 22) for restricting the movement of the vehicle seat (S) within a predetermined range, and a second operation for selecting operation or non-operation of the movement restricting means (7, 22). Means (4) , and the movement limiting means is provided in the vehicle system.
In the intermediate position except the moving end of the seat (S), the vehicle seat
(S) side or vehicle floor (F) side
A topper (22) and the vehicle seat (S) side or vehicle
Provided on the other side of the floor (F) so as to be able to move forward and backward,
When the vehicle seat (S) is being moved,
The vehicle seat (S) is brought into contact with and engaged with the topper (22).
Consists of a movement restricting piece (7) for restricting further movement
And moving the movement limiting piece (7) to the upper rail
(1A, 1B) was installed between the bearings (142) provided
It is supported by the rotating shaft (143) and is provided to be tiltable and rotatable.
One end of the movement restricting piece (7) is provided with the second operating means.
(4) is connected and the stopper (22)
Remove the other end (73) of the movement limiting piece (7)
To the upper rail (1A, 1B), which is almost the same width as
A seat slide device for a vehicle, wherein the seat slide device is located in the formed opening (112) . 2. The vehicle seat (S) is a two-seat bench seat, and the second operating means (4) is provided solely between adjacent seating portions of the vehicle seat (S). The vehicle seat slide device according to claim 1 , wherein the movement restriction pieces (7) provided on the left and right upper rails (1A, 1B) are connected to the movement restriction pieces (7). 3. The operation device according to claim 2, wherein the second operation means (4) retreats the movement restricting piece (7) to a position where it does not come into contact with the stopper (22) during operation. The vehicle seat slide device according to claim 1 or 2 . 4. The shape of at least one of the stopper (22) and the movement limiting piece (7) when the vehicle seat (S) returns to within the movement limiting range.
To 2) and the travel limiting piece (7) no claim 1, characterized in that both are set in a shape that does not engage even abut 3
A seat slide device for a vehicle according to any one of the preceding claims.