JPH0545554Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a seat installed in a vehicle such as an automobile.

[Conventional issues]

In the case of a fully flat type seat, the backrest is attached to the seat so that it can be fully reclined to the rear, and is used as a bed or the like when the backrest is fully reclined and in a fully flat state.

However, as shown in FIG. 5, in the conventional seat 1, the center part 21 of the seat part 2 is slightly recessed than the peripheral edge 22, so even when the backrest part 3 is in the fully flat state, the upper surface of the seat part 2 is I couldn't get into a flat state, and it was becoming uncomfortable to sleep on.

[Means to solve the problem]

The present invention, as a means to solve the above-mentioned conventional problems, consists of a seat part 2 and a backrest part 3 attached to the seat part 2 so that it can be fully collapsed backwards, and the upper surface of the seat part 2 has a central part 21. It is slightly recessed than the peripheral edge 22, and a push-up plate 4 is disposed within the seat 2 directly below the center of the upper surface of the seat 2 so as to be movable up and down. When the backrest 3 is fully reclined, the push-up plate 4 rises and lifts the central part 21 of the upper surface of the seat to the height of the peripheral edge 22 of the seat 2, thereby raising the upper surface of the seat. This provides a sheet that is in a flat state.

[Effect]

When the backrest is fully tilted backwards, the movement of the backrest causes the push-up plate to rise via the interlocking means, and the central portion of the upper surface of the seat, which is in a concave state, is lifted up to the height of the peripheral edge. In this way, when the seat is in a fully flat state, the seat portion is in a flat state.

[Effect of idea]

According to the present invention, the seat section becomes flat when the seat is fully flat, so
When a fully flat sheet is used as a bed etc., sleeping comfort becomes extremely good.

〔Example〕

To explain the present invention with reference to an embodiment shown in FIGS. 1 to 3, the seat 1 is brought to a fully reclined state rearward by a seat portion 2 and a well-known reclining device (not shown) on the seat portion 2. The upper surface of the seat part 2 has a central part 21 which is slightly recessed than a peripheral part 22. The seat part 2 is constructed by covering the outside of an elastic core body 23 made of polyurethane foam or the like with a skin 24 made of fabric, natural leather, synthetic leather, etc. A push-up plate 4 is disposed on the lower surface of the elastic core 23 of No. 21, and bearings 26, 2 extending from both side edges of the seat 2 frame 25 are provided on both sides of the push-up plate 4.
The front ends of the "shaped brackets 5, 5" whose central portions are rotatably fixed to the "shafts" 6 are pivotally connected via shafts 51, 51, so that the push-up plate 4 is attached to the brackets 5, 5. The push-up plate 4 is made up of a frame 41 and an S spring 42 extending from the frame 41.

The rear ends of the brackets 5, 5 are each pivotally connected to a rod 6, and a pin 61 is attached to the rear end of the rod 6.
The pin 61 is slidably fitted into an elongated hole 71 formed at the lower end of a rotating arm 7 whose upper end is pivotally connected to bearings 27 extending from both side edges of the frame 25. be done. A pin 72 is protruded from the middle part of the rotating arm 7, and the arm 31 of the backrest 3, which is pivotally attached to the rear end of both side edges of the seat part 2 frame 25, can come into contact with the pin 72. It's summery. Furthermore, the left and right rods 6 have connecting rods 6.
2 has been handed over.

In the above configuration, in the normal position shown in FIG. 1, the push-up plate 4 is at the lowest position within the seat 2, and the center portion 21 of the upper surface of the seat 2 is slightly recessed than the peripheral edge 22, providing stable sitting comfort. It is becoming possible to obtain The backrest part 3 can be adjusted to a desired inclination angle by a reclining device, but when the backrest part 3 is tilted to a predetermined angle, the arm 31 of the backrest part 3 comes into contact with the pin 72 of the rotation arm 7, and the backrest part 3 is further reclined. Then, by pushing down the pin 72, the rotating arm 7 rotates and pushes the rod 6 forward through the elongated hole 71 and the pin 61.
If the rod 6 is pushed forward, the "shaped bracket 5,
5 rotates and the push-up plate 4 rises, pushing up the center part 21 of the upper surface of the seat part 2 through the elastic core body 23 to the height of the peripheral part 22, thus lifting the entire backrest part 3 as shown in FIG. In the reclined state, the upper surface of the seat portion 2 is in a flat state.

In the above embodiment, the interlocking means for connecting the arm 31 of the backrest portion 3 and the push-up plate 4 are the rotating arm 7;
The rod 6 was made up of two type brackets 5, 5, and as shown in FIG.
may also be used. The front end of the belt 5A is connected to the support column 6A.
, is supported by the guide 7A at the rear, and is brought into contact with the lower surface of the push-up plate 4.

In the above configuration, the backrest portion 3 can be set only in the use position and the fully reclined position, and when the backrest portion 3 is fully reclined backwards, the belt 5A is pulled by the arm 31 of the backrest portion 3. , the push-up plate 4 is raised to the dotted line position, and the upper surface of the seat portion 2 is thus placed in a flat state.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention.
The figure is a side view of the seat notch in the fully flat state, Figure 3 is a partial perspective view of the frame with the push-up plate removed, Figure 4 is a side view of the seat notch in the seat of another embodiment, and Figure 5 The figure is a side view of a conventional example in a fully flat state. In the figure, 1... Seat, 2... Seat part, 21... Center part, 22... Peripheral part, 3... Backrest part, 31
... Arm, 4 ... Push-up plate, 5 ... Square bracket, 6 ... Rod, 61 ... Pin, 7 ... Rotating arm, 71 ... Long hole, 72 ... Pin, 5A ...
belt.

Claims (1)

[Scope of utility model registration request] It consists of a seat and a backrest that is attached to the seat so that it can be fully folded backwards. A push-up plate is arranged to be movable up and down just below the center of the upper surface, and the push-up plate is connected to the backrest part by an interlocking means, so that when the backrest is fully reclined, the push-up plate rises and moves to the center of the upper surface of the seat. A seat characterized in that the upper surface of the seat becomes flat by raising the upper surface of the seat to the height of the peripheral edge of the seat.