JPS6114014B2 - - Google Patents

Description

[Detailed description of the invention] When providing a seat for a guide or a tour conductor after the entrance/exit step in a shared bus,
In this type of conventional seat, the floor is depressed because it is on top of the steps, which is very dangerous.
Another drawback was that there was no place to put your feet.

SUMMARY OF THE INVENTION The object of the present invention is to provide a seat in which these conventional drawbacks are eliminated.

The gist of the present invention is to provide a seat rest which is located horizontally and whose rear end is pivotally connected to the body with an upper point, and a step which is located horizontally in the front lower part of the seat rest, and whose upper end is located at the front upper point of the seat rest. The lower end of the front rod is pivoted and extended downward, and the lower end of the front rod is pivotally connected to the step by the front lower point, and the upper end of the front rod is pivoted to the seat at the rear upper point behind the front upper point, and the rear rod is extended downward. The lower end is pivotally connected to the step by the rear lower point, the lower end is located horizontally below the seat, the front end is pivotally connected to the rear rod by the rod point, and the rear end is pivotally connected to the body below the upper point by the lower point. It is equipped with a rod and a stopper that gets in the way when the seat pivots downward around its upper point.

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 upper point, 2 is the body, 3 is the seat, 4 is the step, 5 is the front upper point, 6 is the front rod, and 7 is the front. Lower point, 8 is posterior superior point, 9 is posterior rod, 10 is posterior inferior point,
11 is the rod point, 12 is the lower point, 13 is the lower rod, 14,1
5 is a stopper.

It is provided with a seat 3 which is located horizontally and whose rear end is pivotally connected to the body 2 by an upper point 1.

A horizontal step 4 is provided at an appropriate position below the front of the seat 3. The structure of Zabuta 3 is appropriate,
Step 4 is preferably plate-shaped.

The upper end of the front part of the seat 3 is pivotally connected to the front upper point 5, and the lower end of the front rod 6 extended downward is pivotally connected to the step 4 by the front lower point 7.

Behind the front upper point 5, the upper end of the seat 3 is pivotally connected to the seat 3 by the rear upper point 8, and the lower end of the rear rod 9, which is extended downward, is pivotally connected to the step 4 by the rear lower point 10.

The front upper point 5, the front lower point 7, the rear lower point 10, and the rear upper point 8 are each located at approximately the apex of one parallelogram, that is, the parallelogram 5,
7, 10, and 8, but in FIG. 1 in the unfolded state, a rectangular shape is shown.

A lower rod 1 is located horizontally below the seat 3, has a front end pivoted to the rear rod 9 at a rod point 11, and a rear end pivoted to the body 2 at a lower point 12 below the upper point 1.
Equipped with 3.

The upper back point 8, the rod point 11, the lower point 12, and the upper point 1 are
Each of the parallelograms 8, 11,
12,1, but in the unfolded state of FIG. 1, a rectangular shape is shown.

Stoppers 14 and 15 are provided which get in the way when the seat 3 rotates downward around the upper point 1.

The stopper 14 is an adjustment screw provided at the upper rear of the upper point 1, and the stopper 15 is an adjustment screw provided at the lower front of the upper point 1.

Although the figure shows a folding backrest 17 pivoted to the seat 3 by a pivot 16, this is not necessary.

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

FIGS. 1 and 2 are developed views showing the state of use. The downward rotation of the seat 3 is done by stoppers 14 and 15.
Since it is obstructed by a wall, it can withstand loads from above and can be used as a seat.

When the seat 3 is in use, the rear upper point 8 is fixed, and the lower point 12 is a point on the body 2 and is fixed. Rod point 11 is therefore a fixed point.

Since the upper rear point 8 and the rod point 11 are fixed points, the rear rod 9 is fixed, and the lower rear point 10 is a fixed point.

Since the front upper point 5 is a fixed point and the rear lower point 10 is a fixed point, the front lower point 7 is therefore a fixed point. Since the front lower point 7 and the rear lower point 10 are fixed points, the step 4 is fixed in this state and can withstand the load of a foot step.

In this manner, the present invention can be used as a seat and as a step in its unfolded state, and can achieve the purpose of a seat with a step.

When the seat 3 is rotated upward around the upper point 1, the lower rod 13 pulls the rear rod 9, the rear rod 9 pulls the step 4 by the rear lower point 10, and the step 4 pulls the front lower point 7.
This causes the front rod 6 to be pulled, resulting in a transition state as shown in FIG. In this movement process, from the relationship between parallelograms 5, 7, 10, and 8, and from the relationship between parallelograms 8, 11, 12, and
are always substantially parallel, the step 4 and the seat 3 are substantially parallel, and the lower rod 13 and the seat 3 are substantially parallel. After going through the transition process shown in Figure 4, the third
It will be in the folded state shown in the figure. In the folded state, step 4
contacts the bottom surface of the seat 3, and the front rod 6, rear rod 9, and lower rod 13 fit approximately parallel to the side surface of the seat 3.

In the folded state, it can be stored in the storage box 18.

The step 4 is placed, for example, above the doorway step 19 and near the level of the floor 20.

The present invention can be used as a guide seat or a tour conductor's seat in a passenger bus or the like, but it can also be used as other seats.

In this way, according to the present invention, a seat can be obtained in which the drawbacks of the conventional seat have been eliminated, and it is of great industrial value.

The degree of horizontality of the seat 3 can be adjusted by adjusting the screws of the screw-shaped stoppers 14 and 15, but this is not always necessary.

[Brief explanation of the drawing]

FIG. 1 is a side view of the unfolded state, FIG. 2 is a front view thereof, and FIG. 3 is a side view of the folded state. FIG. 4 is a side view of the transition state to folding. In the figure, 1 is the upper point, 2 is the body, 3 is the seat, 4 is the step, 5 is the front upper point, 6 is the front rod, 7 is the front lower point, 8 is the rear upper point, 9 is the rear rod, 10 is the posteroinferior point,
11 is the rod point, 12 is the lower point, 13 is the lower rod, 14,1
5 is a stopper.

Claims (1)

[Claims] 1. A seat rest located horizontally and whose rear end is pivotally connected to the body by the upper point, and a step located horizontally below the front of the seat rest, whose upper end is pivotally connected to the front part of the seat rest by the front upper point. The lower end of the front rod which has been extended downward is pivoted to the step by the front lower point, and the upper end of the rear rod is pivoted to the seat behind the front upper point and extended downward by the rear upper point. is pivoted to the step by the rear lower point behind the front lower point, is placed horizontally below the seat, the front end is pivotally connected to the rear rod by the rod point, and the rear end is connected to the body by the lower point below the upper point. 1. A folding seat having a step, characterized in that the lower rod is pivotally mounted, and the body is provided with a stopper for stopping the seat when it attempts to rotate downward about the upper point.