JPS6114013B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide a support device that allows easy adjustment of a seat cushion in a driver's seat or the like. The gist of the present invention is to horizontally position a seat frame above a cylinder stand fixed to the upper part of a vertical cylinder which is slidably supported in the vertical direction by the upper part of a basic cylinder, and whose lower end is attached to the lower part of the basic cylinder. It has a compression spring whose upper end supports the upper part of the upper and lower cylinders.The front axis is rotatably supported horizontally at the front of the cylinder stand, and the rear axis is rotatably supported horizontally at the rear of the cylinder stand. It has four arm groups of equal length that are tilted and parallel to each other with a moving axis, and the lower part of the two front arms of the arm group is fixed to the forward moving axis, and the upper part is attached to the seat frame by the front pivot point. The lower parts of the two rear arms of the pivoting arm group are fixed to the rear rotation axis, and the upper parts are pivoted to the seat frame by the rear pivot point and fixed to the front rotation axis or the rear rotation axis. The oscillating body is pivotally connected to the support by a pivot point, and the oscillating body is swung by an adjustment body supported by the support and connected to the oscillating body, with one end connected to the oscillating body and the other end connected to the cylinder base side. The device is equipped with a tension spring that is shaped like this, and the degree of tension of the tension spring changes when the rocking body swings.

The configuration of the present invention will be explained below with reference to drawings of embodiments of the present invention.

First, we will explain the correspondence between the symbols on the drawing and the names of their parts. 1 is the base cylinder, 2 is the upper and lower cylinders, 3 is the cylinder base, 4 is the seat frame, 5 is the compression spring, 6 is the forward movement axis, and 7
is the rear rotation axis, 8 is the front double arm, 9 is the front pivot point, 10 is the rear double arm, 11 is the rear pivot point, 12 is the support body, 13 is the swinging body, 14 is the pivot point, 15 is the The adjustment body 16 is a tension spring.

A seat frame 4 is horizontally positioned above a cylinder stand 3 fixed to the upper part of an upper and lower cylinder 2 which is slidably supported in the vertical direction by the upper part of a base cylinder 1.

The figure shows a case in which cylindrical upper and lower cylinders 2 fit around the outer periphery of a cylindrical base cylinder 1.

The cylinder stand 3 is approximately horizontal.

The seat is supported by the upper surface of the seat frame 4.

It is provided with a compression spring 5 whose lower end is supported by the lower part of the base cylinder 1 and whose upper end supports the upper part of the upper and lower cylinders 2.

The upper and lower cylinders 2 may be supported by supporting the cylinder stand 3.

A forward movement shaft 6 is provided at the front part of the cylinder stand 3 and supported horizontally and rotatably in the left and right direction.

A rear rotation shaft 7 is provided at the rear of the cylinder stand 3 and horizontally rotatably supported in the left-right direction.

It has an arm group consisting of four arms that are appropriately inclined with respect to the horizontal or vertical, parallel to each other, and of equal length.

The lower parts of the two front arms 8, 8 at the front of the arm group are fixed to the left and right sides of the forward movement axis, and the upper parts are pivotally connected to the left and right sides of the seat frame 4 by front pivot points 9, 9.

The lower parts of the two rear dual arms 10, 10 at the rear of the arm group are fixed to the left and right sides of the rear rotation shaft 7, and the upper parts are pivotally connected to the left and right sides of the seat frame 4 by rear pivot points 11, 11. .

A rocking body 13 is attached to a support body 12 fixed to a pre-swing shaft.
are pivotally connected by the pivot point 14. The adjusting body 15 supported by the support body 12 and connected to the rocking body 13 causes the rocking body 13 to swing.

A tension spring 16 is provided with one end connected to the rocking body 13 and the other end connected to the cylinder stand 3 side.

When the rocking body 13 swings, the tension level of the tension spring 16 is changed.

The adjustment body 15 may have any suitable structure, but in the figure, the adjustment body 15 is supported on the support body 12 by using a bolt 15 and passing the bolt 15 through the hole 17.

The adjusting body 15 is connected to the rocking body 13 by screwing the bolt 15 into a rocking nut 18 provided on the rocking body 13 .

When the bolt 15 is twisted, the rocking nut 18 is attached to the bolt 1.
5, the rocking body 13 swings around the pivot point 14, and one end of the tension spring 16 moves, so that the degree of tension of the tension spring 16 is changed.

The rocking nut 18 is suitably supported on the invention 13, for example horizontally by a pin, so that it can rock but not rotate about the bolt 15.

Since the present invention has such a configuration, its functions and effects are as follows.

When a load is applied to the seat frame 4 from above, the arm group rotates so that the angle of inclination with respect to the horizontal becomes small, and the seat frame 4 moves downward. At this time, in the figure, the forward motion axis 6
rotates, so the support body 12 rotates, the rocking body 13 connected to the support body 12 swings, the tension spring 16 is pulled, and the load on the seat frame 4 and the tension spring 16 are The seat frame 4 stops in a balanced state.

When the load on the seat frame 4 changes, the tension spring 16 changes its tension and acts as a cushion.
By operating the adjustment body 15 to change the tension of the tension spring 16, the degree of cushioning can be changed.

That is, according to the present invention, it is possible to obtain a seat support device in which the seat cushion can be easily adjusted in a driver's seat, etc., and is of great industrial value.

By providing a damper 19 whose upper end is pivotally connected to the seat frame 4 and whose lower end is connected to the upper and lower cylinders 2, a damping effect can be applied to the cushion. The upper and lower limits of the seat frame 4 may be determined by providing a stopper of an appropriate shape on the cylinder base 3 and bringing it into contact with the arm group, or by using a damper 19.

In the figure, an adjustment pin 21 guided by a pin hole 20 provided in the upper and lower cylinders 2 is inserted into one of an appropriate number of adjustment holes 22 provided in the base cylinder 1 along the vertical direction.

The adjustment pin 21 prevents the upper and lower cylinders 2 from sliding up and down. The height of the cylinder stand 3 can be adjusted by removing the adjustment pin 21 from the adjustment hole 22, moving the upper and lower cylinders 2 up and down appropriately, and inserting the adjustment pin 21 into the adjustment hole 22 that matches the position.

The tension force of the compression spring 5 is used to move the upper and lower cylinders 2 upward, and a load is applied to the seat frame 4 from above to move them downward.

The lower end of the adjustment rod 24, which is pivotally connected to the upper and lower tubes 2 by the pivot point 23, is pivotally connected to the adjustment pin 21 by the pivot point 25, and a bolt 26 facing the upper and lower tubes 2 is screwed into the upper end. When the bolt 26 is crimped onto the upper and lower cylinders 2, the adjustment pin 21 is inserted into the adjustment hole 22 and stabilized.

When the bolt 26 is moved toward the upper and lower cylinders 2 with an appropriate space between the bolt 26 and the upper and lower cylinders 2, the adjustment pin 2
1 comes out through the adjustment hole 22.

In order to connect the other end of the tension spring 16 to the cylinder stand 3 side, in the figure, the rear rotation shaft 7 provided on the tower stand 3 is used.
The connection points are appropriate.

In the figure, the support body 12 is fixed to the front rotation shaft 6, but it may be fixed to the rear rotation shaft 7.

[Brief explanation of the drawing]

FIG. 1 is a right side view of the notch, and FIG. 2 is a top view of the notch. In the figure, 1 is the basic cylinder, 2 is the upper and lower cylinders, 3 is the cylinder base, 4 is the seat frame, 5 is the compression spring, 6 is the forward movement axis, and 7
is the rear rotation axis, 8 is the front double arm, 9 is the front pivot point, 10 is the rear double arm, 11 is the rear pivot point, 12 is the support body, 13 is the swinging body, 14 is the pivot point, 15 is the The adjustment body 16 is a tension spring.

Claims (1)

[Claims] 1 The seat frame is placed horizontally above the cylinder stand fixed to the upper part of the upper and lower cylinders, which is slidably supported in the vertical direction by the upper part of the foundation cylinder, and the lower end is supported by the lower part of the foundation cylinder, and the upper end is supported by the lower part of the foundation cylinder. is equipped with a compression spring that supports the upper part of the upper and lower cylinders, and an appropriate number of adjustment holes are provided in the base plate along the vertical direction, and an adjustment pin is guided by the pin hole of the upper and lower cylinders and inserted into the adjustment hole in a sliding manner. It is equipped with a front rotation axis that is rotatably supported horizontally at the front part of the barrel base, and a rear rotation axis that is rotatably supported horizontally at the rear part of the barrel base, and is inclined and parallel to each other. The lower part of the two front arms of the arm group is fixed to the forward movement axis, and the upper part is pivoted to the seat frame by the front pivot point. The lower parts of the two rear dual arms are fixed to the rear rotation axis, and the upper parts are pivotally connected to the seat frame by the rear pivot point, and the swinging body is pivoted to the support fixed to the front rotation axis or the rear rotation axis. The oscillator is pivotally mounted at the landing point and is supported by a support so that the oscillator can be swung by an adjusting body connected to the oscillator, one end of which is connected to the oscillator and the other end connected to the cylinder base side A seat support device comprising a spring, and characterized in that the degree of tension of the tension spring changes when a swinging body swings.