JP3826500B2 - Seat adjustment device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for associating reclining angle adjustment of a seat back and front / rear slide position adjustment of a seat cushion in a vehicle or the like.
[0002]
[Prior art]
In a vehicle seat or the like, a lever that unlocks the reclining adjustment mechanism of the seat back and a lever that unlocks the front and rear slide adjustment mechanism of the seat cushion are provided in separate locations. By operating the levers independently, the reclining angle adjustment of the seat back by the reclining adjustment mechanism and the front / rear slide position adjustment of the seat cushion by the front / rear slide adjustment mechanism are alternately performed to obtain the most desirable reclining angle and front / rear slide position. Therefore, there is a problem that adjustment is complicated because at least two operations of reclining angle adjustment and front / rear slide position adjustment are required.
[0003]
[Problems to be solved by the invention]
The present invention is intended to enable the reclining angle adjustment of the seat back in the seat of a vehicle or the like and the front / rear slide position adjustment of the seat cushion to be selectively performed at the same time as necessary.
[0004]
[Means for Solving the Problems]
For this reason, the seat adjustment device according to the present invention includes a reclining adjustment lever that locks or releases the reclining adjustment mechanism of the seat back, and a front and rear of the seat cushion that is locked or released by the operation of the slide adjustment lever. slide adjustment mechanism, and a switching operation portion of the movable switch between blocking holding the same interlocking action of action in conjunction with the unlocking of the reclining adjusting mechanism according to the reclining adjusting lever to unlock the longitudinal sliding adjustment mechanism I have it.
[0005]
Therefore, if the hold action to unlock the longitudinal sliding adjustment mechanism in conjunction with the unlocking of the reclining adjusting mechanism by operating the switching operation portion, the unlocking action and unlocking the longitudinal slide adjustment Organization of the reclining adjusting lever Since the reclining adjustment mechanism and the front / rear slide adjustment mechanism can be operated simultaneously in conjunction with the action, the reclining angle adjustment of the seat back and the front / rear slide position adjustment of the seat cushion can be performed at one time, and the most desirable reclining It is possible to easily set the angle and the front / rear slide position.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention shown in the drawings will be described.
In FIG. 1, a vehicle seat 1 includes a seat cushion 2 and a seat back 3, and a well-known front / rear slide adjustment mechanism 5 including upper and lower slide rails is installed between the seat cushion 2 and the vehicle floor 4 on the left and right. In addition, a known locking device 6 for the front / rear slide adjustment mechanism 5 is disposed along each front / rear slide adjustment mechanism 5.
[0007]
Further, the protrusions 7 formed on the left and right locking devices 6 are connected by wires 8, and the slide adjustment lever 9 fixed to one locking device 6 is moved from the position shown in the figure to the center of the axis of the locking device 6 with an arrow. Thus, the other locking device 6 connected by the wire 8 also rotates in the same direction around its axis, and the locking action of each locking device 6 on each front / rear slide adjustment mechanism 5 is released. Is done.
[0008]
A known reclining adjustment mechanism 10 is installed on the seat back 3, and a reclining adjustment lever 11 for releasing the locking action is attached to the reclining adjustment mechanism 10, and a protrusion 12 formed on one locking device 6 and The reclining adjustment lever 11 is connected by a wire 13. Reference numeral 14 denotes a guide for the wire 13.
[0009]
Next, the connection state of the reclining adjustment lever 11 and the wire 13 will be described. In FIG. 2, the reclining adjustment lever 11 includes a plate-like lever body 15 and a handle 16, and the lever body 15 is pivotally supported by a shaft 17, and the lever body 15 has a round hole 18 and a round hole. A substantially arc-shaped long hole 19 is formed extending continuously downward and extending downward and centering on the shaft 17.
[0010]
On the other hand, the adjustment fitting 20 has a circular flange 21 larger than the round hole 18 of the lever main body 15, an adjustment handle 22 formed on one side thereof and bent at a substantially right angle, and a cylindrical part formed on the other side of the flange 21. 23.
[0011]
The outer diameter of the cylindrical portion 23 is sized so as to be slidable in the round hole 18 through the round hole 18 of the lever body 15. The cylindrical portion 23 is substantially parallel to the lever 23 by being cut from both sides. A thin portion 24 that can be fitted into the long hole 19 of the main body 15 is formed, and a groove 25 having a substantially semicircular cross section is formed on the outer peripheral surface.
[0012]
The cylindrical portion 23 is inserted into the round hole 18 of the lever main body 15 from the left side of FIG. 2, and at the same time the cylinder 21 protrudes from the round hole 18 to the right side of FIG. An annular washer 26 is fitted to the portion 23 from the right side of FIG. The wire ring portion 27 is configured to be able to slide in the groove 25 in the circumferential direction.
[0013]
In the above apparatus, as shown in FIG. 3 and FIG. 4, the adjustment handle 22 of the adjustment fitting 20 is normally directed upward, so that the handle 16 of the reclining adjustment lever 11 is lifted and the shaft 17 is the center. When the reclining adjustment lever 11 is rotated, the thin portion 24 of the adjustment fitting 20 relatively enters the elongated hole 19 of the lever main body 15, and the reclining adjustment lever 11 is rotated upward while the adjustment fitting 20 is fixed. Since the locking action of the reclining adjustment mechanism 10 is released, the seat adjustment is performed by the reclining adjustment mechanism 10 while the slide adjustment mechanism 5 is locked by the locking device 6 and the seat cushion 2 is prevented from sliding back and forth. The reclining angle of the back 3 can be set freely.
[0014]
Further, when the slide adjustment lever 9 is rotated upward about the axis of the lock device 6, the left and right lock devices 6 connected by the wires 8 also rotate in the same direction about the respective axis, thereby adjusting the front / rear slide adjustment. The previous locking action on the mechanism 5 is released, and the seat cushion 2 can freely set the front / rear slide position by the front / rear slide adjustment mechanism 5. In this case, the protrusion 12 of the lock device 6 and the adjustment fitting 20 The wire 13 for connecting the seat cushion 2 is appropriately bent and does not particularly affect the connection state between the lever body 15 of the reclining adjustment lever 11 and the adjustment fitting 20, so that the seat cushion 2 is independent of the reclining angle adjustment of the seat back 3. The front / rear slide position can be adjusted.
[0015]
On the other hand, as shown in FIGS. 5 and 6, when the adjustment handle 22 of the adjustment fitting 20 is tilted at a substantially right angle, the wire ring portion 27 slides in the groove 25 on the outer peripheral surface of the cylindrical portion 23 in the circumferential direction. At the same time, since the cylindrical portion 23 is placed in the round hole 18 of the lever main body 15, the handle 16 of the reclining adjustment lever 11 is lifted from this state, and the reclining adjustment lever 11 is rotated about the shaft 17. Thus, when the locking action of the reclining adjustment mechanism 10 is released, the position of the round hole 18 in the lever main body 15 rises according to the rotation of the reclining adjustment lever 11, so that the cylindrical portion 23 of the adjustment fitting 20 is also lifted. The wire ring portion 27 is pulled up.
[0016]
Accordingly, the protrusion 12 of the locking device 6 is pulled to the left in FIG. 1 by the wire 13, and the locking device 6 rotates about its own axis in the counterclockwise direction in FIG. Since the other locking device 6 is also rotated in the same direction via the protrusion 7 and the wire 8 formed on the locking device 6, the previous locking action on the front / rear slide adjusting mechanism 5 is completely released.
[0017]
That is, since the locking action of the reclining adjustment mechanism 10 is released and the locking action of the front and rear slide adjustment mechanism 5 is also released, the reclining angle adjustment of the seat back 3 by the reclining adjustment mechanism 10 and the seat by the front and rear slide adjustment mechanism 5 are released. Since the front / rear slide position adjustment of 1 can be performed simultaneously, the most desirable reclining angle and front / rear slide position can be easily set.
[0018]
For this reason, the reclining angle adjustment of the seat back 3 and the front / rear slide position adjustment of the seat cushion 2 can be performed simultaneously and selectively as needed, which is very convenient in practice.
[0019]
【The invention's effect】
In the seat adjustment device according to the present invention, the operation of the switching operation portion is operated to release the lock of the front and rear slide adjustment mechanism in conjunction with the unlocking of the reclining adjustment mechanism, and the unlocking operation of the reclining adjustment lever and the front and rear the interlocking of the unlocking action of the slide adjusting Organization, it is possible to operate the reclining adjusting mechanism and longitudinal sliding adjustment mechanism simultaneously, to perform the temporary and longitudinal sliding position adjustment of the reclining angle adjustment and the seat cushion of the seat back Therefore, there is a great advantage that the most desirable reclining angle and front / rear slide position can be easily set.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part in an embodiment of the present invention.
FIG. 2 is an enlarged exploded perspective view of a main part of the embodiment.
FIG. 3 is a main part front view of the embodiment.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a main part front view of the embodiment.
6 is a sectional view taken along line VI-VI in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vehicle seat 2 Seat cushion 3 Seat back 5 Forward / backward slide adjustment mechanism 6 Lock device 8 Wire 9 Slide adjustment lever 10 Reclining adjustment mechanism 11 Reclining adjustment lever 13 Wire 18 Round hole 19 Long hole 20 Adjustment bracket 22 Adjustment handle 23 Cylindrical part 24 Thin part 25 Groove 27 Ring part

Claims (3)

Reclining adjusting lever for unlocking or the locking reclining adjusting mechanism of the seat back, longitudinal sliding adjustment mechanism of the seat cushion locked or the lock is released by the operation of the slide adjusting lever, and said by the reclining adjusting lever A seat adjustment device having a switching operation unit capable of switching between holding the action of releasing the lock of the front and rear slide adjustment mechanism in conjunction with the unlocking of the reclining adjustment mechanism and blocking the operation of the interlock .   The seat adjustment device according to claim 1, wherein the switching operation unit is attached to the reclining adjustment lever. 3. The switching operation portion according to claim 2, wherein the switching operation portion includes a round hole formed continuously in the reclining adjustment lever and a substantially arc-shaped elongated hole having a width narrower than the round hole and centering on a rotation axis of the reclining adjustment lever. And an adjustment tool that is rotatably inserted into the round hole and connected to the longitudinal slide adjustment mechanism by a wire, and the adjustment tool has a notch that can be engaged with the elongated hole. When the reclining adjustment lever is operated, the adjustment tool is locked in the round hole according to the rotation position of the adjustment tool in the round hole, or the notch is inserted into the long hole. A seat adjustment device configured to be displaceable.

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