JPH0613694U - Seat device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a seat device capable of solving problems such as deterioration of the appearance quality of the lower portion of the seat cushion and lack of a sense of quality when the seat cushion is lifted and lowered. [Structure] Trim town 34a of seat cushion 13
Is urged outward by the elastic member 20,
When the lifter mechanism A is operated to move the seat cushion 13 up and down, the elastic member 20 expands and contracts in accordance with the vertical movement of the seat cushion 13, and the trim 34 urged outward by the elastic member 20 is always tight. The lower part of the cushion 13 can be covered. For this reason, it is possible to solve the problems that the appearance quality of the lower portion of the seat cushion 13 is deteriorated and the sense of quality is lacking.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

This invention is intended to about the seat assembly only the seat cushion is raised and lowered by the lifter.

[0002]

[Prior art]

 There is known a seat device with a lifter for raising and lowering a seat cushion a with respect to a seat back b as shown in FIG. 10 in order to adjust the height of the viewpoint. In this type of seat device, the seat back b is fixed and only the seat cushion a is moved up and down by the lifter. Therefore, the lower position of the seat cushion a is set at a position separated from the seat back b by the maximum lifting distance (stroke) of the seat cushion a.

The size of the gap c between the seat back b and the upper surface of the rear end of the seat cushion a changes according to the elevation of the seat cushion a. Therefore, as shown in FIG. 11, the gap h between the vehicle floor d and the lower surface of the seat cushion a also fluctuates as the seat cushion a moves up and down.

[0004]

[Challenges devised to be Solved]

 However, as described above, when the gap h between the vehicle floor d and the seat cushion a changes, parts such as the slide rail e are exposed. In order to avoid this, a finisher f or the like is provided on the side surface of the seat cushion a so that the seat cushion a can be moved up and down depending on the dimension i of wrapping it with the trim g. There was a problem that the quality was poor and it did not look good.

[0005] The present invention is, which has been made in view of the above-described problems, the time and is an object of the present invention, during the lifting operation of the seat cushion, good appearance between this and the vehicle floor, appearance An object of the present invention is to provide a seat device capable of solving the problems of deterioration of quality and lack of quality.

[0006]

[Means for Solving the Problems]

Yes To achieve the above object, the present invention is, in the seat device capable of lifting the seat cushion by operating the lifting mechanism, the trim gusset portion of the seat cushion, a structure which is adapted to bias outward by elastic members is doing.

[0007]

[Action]

 With this configuration, when the lifter mechanism is operated to move the seat cushion up and down, the elastic member expands and contracts in accordance with the vertical movement of the seat cushion, and the trim urged outward by the elastic member always keeps the tension of the seat cushion. The bottom can be covered. Therefore, it is possible to solve the problems of deterioration of appearance quality and lack of quality.

[0008]

【Example】

(Example 1) will be described below with reference to a first embodiment of the present invention in the drawings. Figure 1 is a perspective view of a seat device that involved in the present invention, FIG 2 is an exploded perspective view of the skeletal portion of the seat apparatus, FIG. 3 is a seat cushion, perspective view of the lifter mechanism of the seat apparatus.

In the drawing, reference numerals 1 and 1 denote left and right slide mechanisms, and these slide mechanisms 1 and 1 slide in a front-back direction with respect to a lower slide member 2 fixed to a floor surface and the lower slide member 2. And an upper slide member 3 that operates.

A base member 4 is fixed to the upper slide members 3 of the left and right slide mechanisms 1 and 1. Device upper parts 5 are attached to the rear portions of the left and right base members 4 by a shaft pin 6 so as to be tiltable in the front-rear direction. The left and right upper brackets 5 are attached with left and right side brackets 7b of the back frame 7a of the seat back 7 by screws 6a.

A device (not shown) is attached to the left base member 4, and the seat back 7 is tilted in the front-rear direction via the upper part 5 by this device.

A front lifter shaft 8 is rotatably attached to the front parts of the left and right base members 4, and a rear lifter shaft 9 is rotatably attached to the rear part thereof. Brackets 10 are fixed to the left and right sides of the front lifter shaft 8. Arms 11 and 12 are fixed to the left and right sides and the right end side of the rear lifter shaft 9.

Further, the seat cushion 13 is configured such that the pad 33 is provided along the frame 14 and the surface thereof is covered with the trim 34. Brackets 15 and 16 are provided on the left and right sides of the frame 14 of the seat cushion 13 at the front and rear. The front bracket 15 is rotatably connected to the left and right brackets 10 of the front lifter shaft 8 by pin members (not shown), and the rear bracket 16 is connected to the left and right of the rear lifter shaft 9. A pin member 17 is rotatably connected to the arm 11.

Further, as shown in FIG. 5, a plurality of wires 20, which are elastic members having an outward tension, are attached to the frame 14 of the seat cushion 13 at appropriate intervals, and are attached to the tip of the wire 20. A shaping wire 21 is attached along the longitudinal direction of the base member 4. The terminal portion 34 a of the trim 34 of the seat cushion 13 is fixed to the upper surface of the upper slide member 3.

A fan gear 23 is attached to the front part of the right base member 4 by a shaft pin 24 so as to be able to swing up and down, and the front end part of a connecting rod 25 is pinned to the surface part of the fan gear 23. It is connected by a member 26, and the rear end of the connecting rod 25 is connected to the right arm 12 of the rear lifter shaft 9 by a pin member 27. An operating shaft 28 equipped with a friction brake mechanism (not shown) is rotatably attached to the front part of the base member 4 on the right side. The operating shaft 28 includes a lifter dial 29 and a gear 30. Are fixed, and the gear 30 meshes with the fan-shaped gear 23.

The lifter dial 29, the gear 30, the operating shaft 28, the connecting rod 25, and the rear lifter shaft 9 constitute a lifter mechanism A.

Next, the operation of the above embodiment will be described.

In order to adjust the height of the viewpoint, the lifter mechanism A is operated to lower the seat cushion 13, that is, the lifter dial 29 is rotated to rotate the gear 30 via the operation shaft 28, and the fan gear. By rotating 23 to move the connecting rod 25 rearward, the rear lifter shaft 9 is rotated clockwise in FIG. 3 and the rear portion of the seat cushion 13 is lowered through the arm 11. As shown in FIG. 5, the trim 34 also descends and tries to loosen, but the wire 20 projects outward to form the shape. The wire 21 pushes out the trim 34. You can

When the lifter mechanism A is operated to raise the seat cushion 13, the wire 20 contracts inward as shown in FIG. 6, and the trim 34 is stretched by the shaping wire 21. The lower part of the seat cushion 13 is covered.

In this way, the wire 20 expands and contracts as the seat cushion 13 moves up and down, and the trim 34 tightly covers the lower portion of the seat cushion 13 via the shaping wire 21, so that no finisher or the like is required. Also, the lower part of the seat cushion 13 looks good.

[0021] (Example 2) it will be described with reference a second embodiment of the present invention in the drawings.

In FIG. 7, reference numeral 3 is an upper slide member, 4 is a base member, and 13 is a seat cushion, and these configurations are the same as those in FIG. 5 is different from FIG. 5 in that a plurality of border wires 20 which are elastic members having an outward tension are embedded inside the pad 33 of the seat cushion 13 so as to absorb the slack of the trim 34. .

Next, the operation of the above embodiment will be described.

When the seat cushion 13 is lowered by operating the lifter mechanism A, the trim 34 also lowers and tries to relax as shown in FIG. 8, but the pad 33 having the border wire 20 embedded therein is outwardly moved. Since the trim 34 is pushed out and the trim 34 is pushed out, the trim 34 can be stretched to cover the lower portion of the seat cushion 13.

When the lifter mechanism A is operated to raise the seat cushion 13, the border wire 20 contracts inward as shown in FIG. Cover.

In this way, the border wire 20 expands and contracts as the seat cushion 13 moves up and down, and the trim 34 always covers the lower portion of the seat cushion 13 with tension, so that the seat is not required to be provided with a finisher or the like. The bottom of the cushion 13 looks good.

[0027]

Effects of the invention]

As described above, in the seat apparatus of the present invention, the trim gusset portion of the seat cushion, by outwardly biased by elastic members, when the lifter mechanism and operation to lift the seat cushion The expansion / contraction member expands and contracts as the seat cushion is moved up and down, and the trim urged outward by the expansion / contraction member always has a tension to cover the lower portion of the seat cushion. For this reason, it is possible to solve the problems that the appearance quality of the lower portion of the seat cushion is deteriorated and the feeling of quality is lacking.

[Brief description of drawings]

1 is a perspective view of a seat device according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of a skeleton portion of the seat device.

FIG. 3 is a perspective view of a seat cushion and a lifter mechanism of the seat device.

FIG. 4 is a side view of the same.

FIG. 5 is a sectional view of an essential part of the seat device at the lowermost position of the lifter.

FIG. 6 is a cross-sectional view of essential parts of the seat device at the uppermost position of the lifter.

7 is a fragmentary cross-sectional view of a seat device according to a second embodiment of the present invention.

FIG. 8 is a cross-sectional view of essential parts of the seat device at the lowermost position of the lifter.

FIG. 9 is a sectional view of an essential part of the seat device at the uppermost position of the lifter.

FIG. 10 is an explanatory diagram when the seat cushion is lowered in the conventional seat device.

FIG. 11 is a cross-sectional view of main parts of the seat device.

[Explanation of symbols]

 A Lifter mechanism 1 Slide mechanism 7 Seat back 13 Seat cushion 20 Wire (expandable member) 34 Trim

Claims (1)

[Scope of utility model registration request] 1. A seat device capable of raising and lowering a seat cushion by operating a lifter mechanism, wherein a trim gusset portion of the seat cushion is biased outward by an elastic member.