JP2589360Y2 - Rear power seat for automobile - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear power seat for an automobile, and more particularly to an improvement in a slide adjusting mechanism of a rear seat cushion.

[0002]

2. Description of the Related Art Conventionally, so-called full power seats in which a cushion and a back are connected are generally mounted as rear power seats for automobiles. The cushion of this full power seat uses the same slide rail as the front seat below the buttocks, and the motor gear box is arranged beside the rail.

[0003]

However, in such a conventional power seat, not only is the cost of the assembly of the cushion and the back high, but also the weight and the installation space need to be large. There was a problem that the workability of assembling to an actual vehicle was poor. Further, in recent automobiles, the height of the vehicle has been reduced, and it is becoming difficult to mount a full power mechanism in a small space in a seat.

Further, when the motor and the gear box are arranged beside the rails as described above, a hit at the time of seating or the like occurs. In order to avoid this, the hip point must be raised to secure a space. It will not match the height of the car. The present invention has been made in view of such a conventional problem.By unitizing the cushion mechanism, the slide rail is abolished, so that the motor, gears and the like can be arranged lower than the seating center, and the low It is an object of the present invention to provide a rear power seat for an automobile that can effectively cope with an increase in the height of a vehicle, can be easily mounted with a single cushion, and can be manufactured at a low cost and light weight.

[0005]

According to the present invention, there is provided a base frame mounted on a vehicle floor, a spindle driven by a motor mounted on the base frame, and a cushion pad mounted on the base frame. A moving frame arranged on a frame, a driving link driven by a spindle driven by the motor, and a driven link driven by the spindle, the driving link being driven between the front and rear sides of both the base frame and the moving frame; And link means comprising:

[0006]

Since the present invention has the above-described structure, the link means as a slide adjusting mechanism can be integrated into a seat cushion to form a unit as a seat cushion having a slide adjusting function. In the present invention, the moving frame moves back and forth by the driving of the motor via the link means including the driving link and the driven link. Along with this, the seat cushion slides back and forth to adjust the position. The slide amount and the cushion seat angle can be adjusted by setting the angle of the link means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a rear power seat for an automobile according to the present invention.

First, the configuration will be described. 1 and 2, reference numeral 1 denotes a base frame serving as a base of a power seat mechanism, and a lock 2 as a means for attaching to a vehicle floor 3 is fixed to a front portion of the base frame 1 by welding. The base frame 1 is formed by a pipe. A base plate 6 to which a motor 5 is attached and a base bracket 4 are welded to the base frame 1, and a stay 8 for fixing the base frame 1 to the vehicle floor 3 is fixed to a rear portion thereof. The base frame 1 is fixed to the vehicle floor 3 by a lock 2 at a front portion and by a stay 8 at a rear portion.

The base bracket 4 has a link pin 1
A link plate 11 is pivotally supported on the link pin 10. The link plates 11 are provided on both sides of the base frame 1 with a similar mounting structure, and a pair of link plates 11, 11 are connected by a connecting rod 12 so as to operate simultaneously to form a drive link a. One end of a pair of link plates 11 is welded to a connecting rod 12, and an arm 13 is welded to one link plate 11 side of the rod 12, and an assembly of the link plate 11 and the arm 13 is linked to the bracket 4. It is designed to be attached via a pin 10. A spindle 14 of the motor 5 is fastened to the arm 13.

A link bracket 16 is welded to a rear portion of the base frame 1, and a link 18 is pivotally supported on the link bracket 16 via a pin 17. The links 18 have a similar mounting structure and are provided on both sides of the base frame 1 to form a driven link b. The above is the configuration of the base unit A.

Reference numeral 15 denotes a moving frame to which the cushion pad 20 is attached, which is formed by a pipe. Frame brackets 21 are provided on both sides of the front of the moving frame 15.
Are welded, and the link plate 11 corresponding to the frame bracket 21 is connected via a pin 22.
A frame bracket 23 is welded to both sides of the rear portion of the moving frame 15 and a link 18 corresponding to the frame bracket 23 is connected. A connection link 24 is connected between the front and rear frame brackets 21 and 23. The above is the configuration of the moving unit B. This constitutes a power unit assembly.

Next, the operation of this embodiment will be described. When power is supplied to the motor 5 by the switch, the motor 5 rotates, the spindle 14 is driven via the gear box, and the spindle 14 moves rearward (to the right in FIG. 1). As a result, the arm 13 is pulled, and the link plate 11 of the drive link a rotates counterclockwise (in the direction of the arrow in FIG. 1) about the link pin 10 as a fulcrum, and accordingly, the frame bracket 21 is rotated.
The moving frame 15 to which the frame bracket 21 is fixed moves forward as shown by a two-dot chain line in FIG. At this time, the rear frame bracket 23 is connected by the connecting link 24.
, And the link 18 of the driven link b also rotates counterclockwise (in the direction of the arrow in FIG. 1) as indicated by the two-dot chain line in FIG. In this way, the entire seat cushion moves forward.

When the motor 5 is rotated in the reverse direction, the link plate 11 of the drive link a and the link 18 of the driven link b rotate clockwise to move the moving frame 15 backward. In this way, a front and rear slide adjustment device for the power seat is obtained. The arm 13 and the link plate 1
The seat angle and sliding amount of the seat cushion can be arbitrarily changed depending on the angle setting with respect to 1 or the length of the link plates 11 and 18.

[0014]

As described above, according to the present invention, the cushion mechanism is unitized and driven by the motor, the spindle and the link means, so that it is not necessary to use a slide rail, and the motor, the gear box and the like are seated. Because it can be located outside the center, it can secure a space under the butt and can meet low vehicle height, and can be easily assembled to the body with a single cushion, and it can be manufactured at low cost and light weight.
Further, the sliding amount and the tilt amount of the seat cushion can be arbitrarily set by a minute design change that changes the setting angle or length of the link means.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a rear power seat for an automobile according to the present invention.

FIG. 2 is a right side view of the embodiment shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 base frame 5 motor 11 link plate 13 arm 14 spindle 18 link 24 connecting link a drive link b driven link

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B60N 2/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A base frame mounted on a vehicle floor, a spindle driven by a motor mounted on the base frame, a moving frame mounted on the base frame with a cushion pad mounted thereon, and moving with the base frame. A motor vehicle comprising: a drive link provided between the front and rear sides of both frames of the frames and driven by a spindle driven by the motor; and link means comprising a driven link driven by the drive link. Rear power seat.