JP3088448B2 - Position adjustment device for vehicle seats, etc. - Google Patents

Description

The present invention relates to a position adjusting device for a vehicle seat or the like.

(Prior Art) Conventionally, a fixed rail fixed to the vehicle body side, a moving rail sliding on the fixed seal fixed to the vehicle seat side, and engagement of the fixed rail side mounted on the moving rail side. 2. Description of the Related Art A fixed lock device having a lock member that engages with and locks any one of a group of units is known.

(Problem to be Solved by the Invention) The lock member of the above-mentioned known example has a structure in which the rotation shaft is stopped by a plurality of brackets fixed to the moving rail.

For this reason, a plurality of brackets are required, and since the plurality of brackets are not necessarily mounted so that their axes coincide with each other, the lock member and the rotation of the rotation shaft may be stiff, and the rotation of the rotation shaft may be reduced. There are problems that the bracket is deformed, that the rotation of the rotating shaft becomes heavy due to the deformation of the bracket, which causes an operation failure, and that the cost of the bracket increases, resulting in an increase in cost.

However, if the moving rail is formed by dividing the moving rail into a left rail member and a right rail member, and the rotating shaft of the fixed lock device is mounted so as to be sandwiched between the left rail member and the right rail member, Since the rail member and the right rail member also serve as the bracket, not only can the cost be reduced, but also problems such as misalignment of the shaft center and malfunctions can be solved at once.

(Object of the Invention) The present invention is to obtain an inexpensive position adjusting device for a vehicle seat or the like.

The present invention is intended to obtain a position adjusting device for a vehicle seat or the like that operates reliably.

(Means for Solving the Problems) Accordingly, the present invention provides a fixed rail 3 fixed to a vehicle body, a moving rail 2 sliding on the fixed rail 3 fixed to a vehicle seat, and a moving rail. And a fixed lock device 4 having a lock member 14 for engaging and locking any one of the groups of engaging portions 23 on the fixed rail 3 side attached to the second rail 2. And the right rail member 6, and the rotating shaft 12 for mounting the lock member 14 of the fixed lock device 4 is mounted so as to be sandwiched between the left rail member 5 and the right rail member 6. 14 is a position adjusting device for a vehicle seat or the like configured to rotate in a direction intersecting the moving direction of the moving rail 2 and to be connected to and disengaged from the engaging portion group 23, and one end of the rotating shaft 12 Extend the operation Over
A position adjusting device such as a vehicle seat formed with 19; and
The left rail member 5 and the right rail member 6 are provided with a window hole 10 penetrating left and right, and an operation lever 19 is provided in the rotation shaft 12 in the window hole 10 in a direction intersecting the axial direction. Position adjusting device for a vehicle seat or the like, and the left rail member 5
And the right rail member 6 is formed with a window hole 10 penetrating in the left and right direction, and the rotation shaft 12 in the window hole 10 is provided with the lock member 14 to provide a position adjusting device for a vehicle seat or the like. .

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seat front / rear position adjusting device that adjusts a vehicle seat to move back and forth with respect to a vehicle body. A fixed moving rail 2 and a fixed rail 3 fixed to the vehicle body to which the moving rail 2 is slidably fitted back and forth.
And a fixed lock device 4 for preventing the moving rail 2 from moving with respect to the fixed rail 3.

The moving rail 2 is formed by splitting a left rail member 5 on the left and a right rail member 6 on the right. Each of the moving rails 2 is formed by press working and the like, and then both are fixed by welding. Form into a mold shape.

The right and left rail members 5 and 6 have substantially vertical standing portions 7 and 7.
A substantially horizontal portion 8 is formed at the lower end of the horizontal portion, and a substantially L-shaped bent portion 9 is formed at the outer edge of the horizontal portion 8. Window holes 10, 10 are formed at approximately middle positions before and after the left and right rail members 5, 6 so as to extend over the upright portion 7 and the horizontal portion 8, respectively, and the upright portions 7 of the right and left rail members 5, 6 are formed. On the inside,
The recesses 11, 11 are formed so as to bulge outward. Recesses 11, 11
Is formed in a straight line so as to straddle the window hole 10 back and forth.

Reference numeral 12 denotes a rotation shaft for fixing the lock member 14 of the lock device 4, and is formed by a shaft member in the front-rear direction. The lock member 14 is fixed to an intermediate portion 15 of the rotating shaft 12. That is, the front end 16 of the rotary shaft 12 projects forward from the lock member 14, and the rear end 17 of the rotary shaft 12 projects rearward from the lock member 14.

The rotation shaft 12 is provided with the front end 16 so that the lock member 14 is located in the window hole 10 of the left and right rail members 5 and 6.
And the rear end portion 17 are fitted into the concave portions 11, 11, respectively.
Therefore, the rotating shaft 12 is formed to have a length corresponding to the concave portion 11, and is held by the left rail member 5 and the right rail member 6 so as to be rotatable only from the left and right sides.

When viewed from the front, the lock member 14 is formed in an inverted L shape, and an operation lever 19 for rotating the lock member 14 is fitted and fixed to the outer end of the upper horizontal portion 18. Lock member 14
The lower portion is bent to the opposite side to the horizontal portion 18 to form a plurality of engaging teeth 20 lined up in the front-rear direction at the tip, and the engaging teeth 20 pass through the window 10 of the moving rail 2 to the fixed rail 3. Face inside.

Lock brackets 21 are fixed to the lower surfaces of the bent portions 9, 9 of the moving rail 2 so as to correspond to the lock members 14.

The lock bracket 21 is formed by punching out the center of a substantially horizontal plate member, and has an engagement tooth 22 with an engagement tooth 20 of the lock member 14 formed on one inner edge thereof.

Thus, the fixed rail 3 is provided with the lock member 14.
Form an engaging portion 23 with which the engaging portion 23 engages. The engaging portion 23 is formed with a plurality of cut-and-raised portions 26 extending over the side plate 24 and the bottom plate 25 of the fixed rail 3, and is formed between the cut-and-raised portion 26 and the adjacent cut-and-raised portion 26.

Therefore, the engaging teeth 20 of the lock member 14 rotate in the left-right direction in the fixed rail 3, protrude outward from the engaging teeth 22 of the lock bracket 21 and engage with the engaging portions 23 of the fixed rail 3. In this state, the tip of the engagement tooth 20 is fixed to the fixed rail 3.
Do not protrude outside the side plate 24.

Reference numeral 30 denotes a bearing inserted between the upper surfaces of the bent portions 9 and 9 of the moving rail 2 and the lower surface of the fixed rail 3, and 31 denotes a roller inserted between the moving rail 2 and the fixed rail 3.
The roller 31 is formed by a column, a coil spring, or the like. A fixing member 32 fixes the fixed rail 3 to the vehicle body.

The lock member 14 may be fixed to the rotating shaft 12 rotatably clamped from the left and right sides by the left rail member 5 and the right rail member 6, and its structure is not limited.

That is, FIG. 7 shows a second embodiment, in which a lock bracket 21 having engaging teeth 22 is fixed on the upper surface of the horizontal portion 8 of the moving rail 2. A lock plate 34 having engagement teeth 33 on the upper part of the side plate 24 of the fixed rail 3
Is fixed. The engagement teeth 33 face below the engagement teeth 22 of the lock bracket 21.

The lock member 14 is formed in a U-shape as viewed from the side, and the engagement teeth 20 of the lock member 14 are engaged with the engagement teeth 22 of the lock bracket 21 and the engagement grooves 33 of the lock plate 34 below the engagement teeth 22 from above. It is configured to match. Therefore,
The engaging portion 23 of the first embodiment is not directly formed on the fixed rail 3, and the engaging teeth 20 of the lock member 14 are located outside the fixed rail 3.

In the third embodiment shown in FIG.
Is formed in an inverted 逆 shape, and an engagement hole 35 is formed in a portion of the lock bracket 21 located on the side of the fixed rail 3,
The engaging hole 35 is formed in a side of the fixed rail 3.
Position outside 36. The engagement teeth 20 of the lock member 14
Are the engaging teeth 22 of the lock bracket 21 and the fixed rail 3
Is configured to engage with the engaging portion 23 from the side.

FIG. 9 shows the fourth embodiment.
The front end of the rotary shaft 12 extends forward in the axial direction to form an operation lever 19.

(Operation) Next, the operation will be described.

The present invention is the above configuration, wherein the plate member is bent,
A front end portion 16 and a rear end portion of a rotary shaft 12 in which a left rail member 5 and a right rail member 6 are formed, and a lock member 14 is fixed between the concave portion 11 of the left rail member 5 and the concave portion 11 of the right rail member 6.
17 are fitted to each other, and in this state, the left rail member 5 and the right rail member 6 are fixed by means such as welding to form the moving rail 2.

Next, lock brackets 21 are fixed to the lower surfaces of the bent portions 9 of the left rail member 5 and the right rail member 6, respectively.
An operation lever 19 is fitted and fixed to a horizontal portion 18 of the lock member 14.

When the moving rail 2 thus formed is slidably fitted to the fixed rail 3, the assembly of the seat front / rear position adjusting device 1 is completed.

The locking member 14 has an engaging tooth 20 formed at a lower portion thereof, which faces the fixed rail 3 from the window hole 10 of the moving rail 2, and the engaging tooth 20 of the lock bracket 21 located in the fixed rail 3. The movable rail 2 is engaged with the engaging portion 23 formed by the cut-and-raised portion 26 of the fixed rail 3 from the inside to lock the moving rail 2 so as not to move with respect to the fixed rail 3.

Next, when the operation lever 19 is lifted upward, since the operation lever 19 is fixed to the horizontal portion 18 of the lock member 14, the operation of the operation lever 19 causes the lock member 14 to rotate the rotation shaft 12
, And is disengaged from the engaging portion 23 of the fixed rail 3 and the engaging teeth 22 of the lock bracket 21 to release the lock.

Therefore, in this state, the seat is moved back and forth, adjusted to a desired position, and then released from the operation lever 19, the lock member 14 rotates about the rotary shaft 12 by the elastic force of the spring 13, and the lock bracket The movable rail 2 is locked with respect to the fixed rail 3 by engaging with the engaging teeth 22 of the fixed rail 3 and the engaging portion 23 of the fixed rail 3.

In this case, in the conventional structure in which the rotating shaft 12 formed long in the front-rear direction is fixed to the moving rail 2 by a plurality of brackets, the rotating shaft 12 is attached to the bracket due to a manufacturing error or the like.
Can not be mounted concentrically, the force when rotating the lock member 14 may be applied to the mounting portion between the rotation shaft 12 and each bracket, and the rotation shaft 12 may be bent, and the locking member may be smoothly
14 may not rotate, causing malfunction.

In the present invention, as described above, the lock member 14 is fixed to the intermediate portion 15 of the rotating shaft 12, and the front end 16 and the rear end 17 of the rotating shaft 12 are fixed.
Are fitted in the recesses 11 of the left and right rail members 5 and 6 so that they can be freely rotated only from the left and right sides.
Is rotated while the whole is sandwiched between the left and right rail members 5 and 6, so that the operation load applied to the rotating shaft 12 is stabilized and the lock member 14 is smoothly rotated.

In addition, the second, third, and fourth embodiments have the same operation.

In the fourth embodiment shown in FIG. 9, the front end of the rotary shaft 12 extends forward in the axial direction to form the operation lever 19, so that the operation lever 19 is positioned below the front side of the vehicle seat. This prevents erroneous operation in relation to other vehicle seat adjustment devices such as reclining.

(Effects) Conventionally, a fixed rail fixed to the vehicle body side, a moving rail that slides on the fixed rail fixed to the vehicle seat side, and an engaging portion of the fixed rail side attached to the moving rail side It is known to provide a fixed locking device having a locking member for engaging and locking any of the groups.

The lock member of the known example has a structure in which the rotation axis is fixed by a plurality of brackets fixed to a moving rail.

For this reason, a plurality of brackets are required, and since the plurality of brackets are not necessarily mounted so that their axes coincide with each other, the lock member and the rotation of the rotation shaft may be stiff, and based on the deflection of the rotation shaft. There are problems that the bracket is deformed, that the rotation of the rotating shaft becomes heavy due to the deformation of the bracket, which causes an operation failure, and that the cost of the bracket increases, which increases the cost.

However, the present invention relates to a fixed rail 3 fixed to the vehicle body side and the fixed rail 3 fixed to the vehicle seat side.
A fixed locking device 4 having a movable rail 2 that slides on the movable rail 2 and a lock member 14 that locks by engaging with one of the groups of engaging portions 23 on the fixed rail 3 side attached to the movable rail 2 side.
The moving rail 2 is divided into a left rail member 5 and a right rail member 6, and the rotating shaft 12 on which the lock member 14 of the fixed lock device 4 is mounted is composed of the left rail member 5 and the right The vehicle seat is configured so as to be sandwiched between the rail members 6, and the locking member 14 is configured to rotate in a direction crossing the moving direction of the moving rail 2 and to be connected to and disconnected from the engaging portions 23. Since the left rail member 5 and the right rail member 6 also serve as brackets, the rotating shaft 12 rotates smoothly around its axis, and the lock member operates reliably. I do.

Since the bending of the rotating shaft 12 can be prevented, operation failure can be prevented.

Since multiple brackets are unnecessary compared to known examples,
The rotation of the lock member and the rotating shaft caused by the misalignment of the plurality of brackets causes stiffness, the bracket is deformed based on the deflection of the rotating shaft, and the rotation of the rotating shaft is heavy due to the deformation of the bracket. Thus, problems such as causing malfunctions can be solved, and the weight can be reduced and the cost can be reduced.

Further, since one end of the rotary shaft 12 is a position adjusting device for a vehicle seat or the like in which the operation lever 19 is formed by extending in the horizontal axis direction, the operation lever 19 is located at a lower front side of the vehicle seat. Erroneous operation can be prevented in relation to other vehicle seat adjustment devices such as reclining.

The left rail member 5 and the right rail member 6 are formed with a window hole 10 penetrating left and right, and an operation lever 19 in a direction intersecting the rotation axis 12 in the window hole 10 with respect to the axial direction. Since the position adjusting device for the vehicle seat or the like is provided, the operation lever 19 can be easily attached.

Further, the left rail member 5 and the right rail member 6 are provided with a window hole 10 penetrating left and right, and a position of a vehicle seat or the like in which the lock member 14 is provided in the rotation shaft 12 in the window hole 10. Since the adjusting device is used, a rational configuration is obtained.

This has the effect.

[Brief description of the drawings]

1 is a perspective view, FIG. 2 is an exploded perspective view, FIG. 3 is a perspective view of a main part, FIG. 4 is a partially cutaway perspective view of a fixed rail, FIG.
6 is an operation state diagram, FIG. 7 is a diagram of a second embodiment, FIG. 8 is a diagram of a third embodiment, and FIG. 9 is a perspective view of a fourth embodiment. DESCRIPTION OF SYMBOLS 1... Seat front-rear position adjustment device 2...
... fixed rail, 4 ... fixed locking device, 5 ... left rail member, 6 ... right rail member, 7 ... standing part, 8 ... horizontal part, 9 ... bent part, 10 ... window hole, 11 ... recess, 12 ...
Rotary shaft, 13 Spring, 14 Lock member, 15 Middle part, 16 Front end, 17 Rear end, 18 Horizontal part, 19
... operating lever, 20 ... engaging teeth, 21 ... lock bracket, 22 ... engaging teeth, 23 ... engaging part, 24 ... side plate, 25 ...
Bottom plate, 26 ... cut and raised part, 30 ... bearing, 31 ... roller, 32 ... fixing member, 33 ... engaging teeth, 34 ... lock plate, 35 ... engaging hole, 36 ... engaging Department.

Claims (4)

(57) [Claims] 1. A fixed rail 3 fixed to a vehicle body,
The movable rail 2 slides on the fixed rail 3 fixed to the vehicle seat side, and engages with one of the engaging portions 23 on the fixed rail 3 side attached to the movable rail 2 to lock. The moving rail 2 is divided into a left rail member 5 and a right rail member 6 to form a fixed locking device 4 having a locking member 14.
The rotation shaft 12 for mounting the lock member 14 is mounted so as to be sandwiched between the left rail member 5 and the right rail member 6, and the lock member 14 rotates in a direction crossing the moving direction of the moving rail 2. And a position adjusting device for a vehicle seat or the like configured to be connected to and disengaged from the engagement portion 23 group. 2. A position adjusting device according to claim 1, wherein one end of said rotary shaft is extended in the axial direction to form an operation lever. 3. A vehicle according to claim 1, wherein said left rail member 5 and said right rail member 6 are formed with a window hole 10 penetrating left and right, and said rotating shaft 12 in said window hole 10 is formed. A position adjusting device for a vehicle seat or the like, which is provided with an operation lever 19 in a direction crossing the axial direction. 4. Claim (1) or (2)
Item or (3), the left seal member 5 and the right rail member 6 are formed with a window hole 10 penetrating left and right,
A position adjusting device for a vehicle seat or the like in which the lock member 14 is provided on the rotation shaft 12 in the window hole 10.