JPH0436681Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an automobile seat equipped with a footrest.

<Prior art> A car seat in which a footrest supporting the thighs of a seated occupant can be adjusted in the longitudinal direction and inclination angle with respect to the front end of the seat was developed in 1975.
Published in issue 69444.

<Problems to be solved by the invention> In the above-mentioned conventional system, the adjustment of the front-rear direction and inclination angle of the footrest is done manually, which makes the operation cumbersome, and also makes it difficult to sit even when the footrest is retracted. It protrudes from the front end and obstructs the passenger from getting on and off.

<Means for solving the problems> The present invention was made to solve the above-mentioned conventional problems, and its characteristic structure is that the seat is attached to a frame fixed to the seat panel of the seat. A slide rail that is slidably guided in the front and back direction,
A tilt arm is provided in parallel with the slide rail and guided so as to be slidable in the same direction, and a footrest is supported at the front end of the slide rail so as to be rotatable in the front and back direction. , connected via a bending double link for rearward and tilting movement, a screw which is rotated forward and backward by a motor is disposed on the frame along a longitudinal axis, and the screw is provided integrally with the slide rail. A stopper member that restricts the backward end of the tilt arm and a spring member fixed to the frame side at the backward end of the tilt arm lock the tilt arm at a constant level at the beginning of the forward movement of the slide rail. The footrest is provided with means for restricting the forward movement for a period of time and causing the footrest to rotate backward and tilt.

<Function> In the present invention having the above configuration, the forward and backward direction and inclination angle of the footrest are automatically adjusted by simply operating the motor switch, and the footrest is retracted and positioned under the front end of the seat. be.

<Examples> Examples of the present invention will be described below based on the drawings. In FIGS. 1 and 2, 1 is a seat portion of an automobile seat, and 2 is a footrest, which is supported by the front end of a slide rail 4 so as to be rotatable in the front-rear direction. Reference numeral 3 designates a switch for automatically adjusting the front-back direction and front-back inclination of the footrest 2.

The details of the configuration of the present invention will be explained with reference to FIGS. 3 to 6. The slide rail 4 is slidably guided in the front and back direction of the seat by a frame 6 fixed to the lower surface of the seat panel 5, and the footrest 2
is rotatably supported at the front end of the slide rail 4 via a rotating shaft 7.

Furthermore, a tilt arm 8 is guided on the frame 6 so as to be slidable in parallel with the slide rail 4 in the same direction. The front end of the tilt arm 8 and the rotating shaft 7 of the footrest 2 are connected via a bending double link 9.

A screw 10 which is rotated forward and backward by a motor 11 is supported on the frame 6 by a bracket 12 in the same axial direction as the sliding direction of the slide rail 4, and a feed nut integrated with the slide rail 4 is attached to the screw 10. 13 are screwed together, and the slide rail 4 is moved forward and backward through the feed nut 13 by forward and reverse rotation of the screw 10.

The tilt arm 8 moves in accordance with the forward and backward movement of the slide rail 4, and the following forward movement is restrained for a certain period of time at the beginning of the forward movement of the slide rail 4 from its original position at the backward end, and the movement is relatively moved. When moving from the forward end to the backward end of the slide rail 4, the backward movement of the tilt arm 8 is restricted and relative movement occurs before the backward end of the slide rail 4. As shown in FIG. 5, its structure is such that an engagement recess 16 is provided on the side surface of the front end of the tilt arm 8, and a U-shaped spring 15 that elastically engages and disengages from the engagement recess 16 is fixed to the frame 6 side. Aori arm 8
As shown in FIG. 4, the rear end of the tilt arm 8 is attached to the flange 14, which is raised at the rear end of the frame 6 to attach the frame 6 to the seat panel 5. This is due to the stopper for regulating the rearward end that is in contact with the stopper.

Next, the operation of the above configuration will be explained. In the retracted state when the footrest 2 is not used, the slide rail 4 and tilt arm 8 are located at the rearward end, and the footrest 2 is moved forward and tilted to be retracted A below the front end of the seat portion 1, as shown in FIG. .

To change from the stored state to the second use state B shown in the figure, the switch 3 is operated to start the motor 11 and rotate the screw 10 in the normal direction. As a result, the slide rail 4 starts moving in the forward direction via the feed nut 13. At this time, the tilt arm 8 is U
Since the spring 15 engages with the engagement recess 16 and the forward follow-up movement is restrained, the slide rail 4 and the tilt arm 8 move relative to each other, and the bent double link 9 expands in the direction shown in FIG. The footrest 2, which has been stretched forward and tilted forward, is gradually tilted backward. When the footrest 2 enters the backward tilting state, the double link 9 fully expands and transmits the forward movement of the slide rail 4 to the tilt arm 8 via the double link 9, and the tilt arm 8 also moves to the forward end together with the slide rail 4. . The position in which the footrest 2 is used is during the stroke from when the footrest 2 is in the backward tilting state to the most forward end of the slide rail 4, and can be stopped at a position desired by the user by operating the switch 3. I can do it.

Even when the footrest 2 is stored from a used state, the screw 10 is reversed by the switch 3 and the slide rail 4 is moved backward. Following the retreat of the slide rail 4, the tilt arm 8 also retreats, but the rear end of the tilt arm 8 comes into contact with the flange 14 of the frame 6 before the slide rail 4 reaches its retreating end, restricting the backward movement of the tilt arm 8. do. As a result, only the slide rail 4 moves backward, and the double link 9, which has spread due to the relative movement with the tilt arm 8, is bent, and the footrest 2 is moved forward and tilted while being stored at the lower part of the front end of the seat part 1. That's what I do.

<Effects of the invention> As described above, according to the invention, the forward and backward movement of the footrest that moves forward and backward at the front of the seat can be performed automatically by electric power, and the forward and backward tilting movement of the footrest between the retracted state and the use state can be performed automatically. Since this is automatically performed in conjunction with the advance/retreat operation, it is easier to operate than the conventional manual operation, and can be easily adjusted to the desired position using a switch at hand while seated. Further, when the footrest is retracted, it is tilted forward along the lower part of the front end of the seat, and does not protrude beyond the front end of the seat, so there is an advantage that it is easy to get on and off.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the seat according to the present invention, Fig. 2 is a side view, Fig. 3 is a bottom view, Fig. 4 is a perspective view of the main components of the invention, and Fig. 5 is a restraining means for the tilt arm. The bottom view shown in FIG. 6 is an explanatory diagram of the tilting movement of the footrest. 1... Seat, 2... Footrest, 3... Switch, 4... Slide rail, 5... Seat panel, 6... Frame, 7... Rotating shaft, 8... Tilt arm, 9... Double Link, 10... Screw, 11... Motor, 12, 13... Bracket, 14... Flange, 15... U-shaped spring, 16
...Engagement recess.

Claims (1)

[Scope of utility model registration request] A frame fixed to the seat panel of the seat is provided with a slide rail that is slidably guided in the front-rear direction of the seat, and a tilt arm that is parallel to and slidably guided in the same direction as the slide rail. A footrest is supported at the front end of the slide rail so as to be rotatable in the front and back direction, and the front end of the tilt arm and the footrest are connected via a bending double link for tilting the footrest forward and backward, and the frame is equipped with a motor. A screw that rotates in forward and reverse directions is arranged along the longitudinal axis, and a feed nut provided integrally with the slide rail is screwed onto this screw, and a stopper member for regulating the backward end of the tilt arm and a tilt stopper member are provided. The present invention is characterized by comprising a means for locking the backward end of the arm by a spring member fixed to the frame side, and restraining the forward movement of the tilt arm for a certain period of time at the beginning of the forward movement of the slide rail, and causing the footrest to move backward and tilt. car seat.