JP2000033876A - Motorized seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit running on a mat or carpet without damaging it by providing a tie rod of a trochoidal propulsion mechanism having two-wheel casters as a driving means rotatably connected with a perpendicular shaft provided on the freely operable board. SOLUTION: Under a seat 9 placed on a base 1, a freely operable board 3 in one piece with the seat 9 is provided. On a lower surface of the freely operable board 3, a vertical shaft 4 is projected. Then, a plurality of tie rods 5 are bundled to be attached to a lower portion of the perpendicular shaft 4, and the other ends of the tie rods 5 are connected with a two-wheel caster 6 to control swinging of the head, so that a trochoidal propulsion movement is allowed. The two-wheel caster 6 is fixed on a bottom face of a turn table 7 and is able to revolve. This turn table 7 is constructed such that it is supported on a bottom face of the base 1 and is revolvable by a motor 73. With this construction, load is distributed among a plurality of wheels with small diameters. As a result, the motorized seat is able to run freely on the mat or carpet.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat-chair motor vehicle, and more particularly to a seat-chair motor that can be freely moved like an automobile.

[0002]

2. Description of the Related Art Conventionally, it is difficult for a chair to run on wheels because of a low seating surface, and it has not been easy to run on a tatami or a carpet.

[0003] In general, it seems that an electric wheelchair can easily be made into a seat-chair car simply by reducing the size of the wheels, but even if the electric wheelchair is miniaturized, it is not easy to run on a tatami or carpet. could not.

[0004] If the wheels are small, it is difficult to drive them. Even if they could be driven, they would damage the tatami mats and carpets, and could not be commercialized.

[0005]

In order to easily drive the vehicle even if the wheels are small and to avoid damaging the tatami mats and the carpet, it is necessary to change the way of thinking.

[0006] It has been a problem to develop a technology that can significantly reduce the contact pressure of the wheels and can run without damaging the tatami or carpet.

[0007]

In order to solve the above-mentioned problems, the present inventor uses the trochoid propulsion mechanism (Japanese Patent No. 1384561) previously invented to increase the number of driving wheels of a seat chair to four or more. The number of drive wheels has been increased to more than eight by using twin-wheel casters, and a seat-car that can run on tatami mats and carpets has been completed.

Thus, in the seat-chair vehicle of the present invention, operating means are provided on the side of the seat 9 and the steerable plate 3 which can be moved by the operating means is provided below the seat 9, and the steerable plate is provided. A vertical shaft 4 protrudes downward from 3, and a tie rod 5 of a trochoid propulsion mechanism having a twin-wheel caster 6 as a driving means is rotatably connected to the vertical shaft 4.

The controllable plate 3 may be fixed below the movable seat surface 9, and the operation means may be the fixed arm 2 or the operation lever 22.

The steerable plate 3 is slidably held under the fixed seating surface 9, and the operating means is formed as an operating lever 22 or an operating rod 28, whereby the steerable plate 3 is moved. It may be made available.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 4 show an example of the seat chair automobile of the present invention, in which a steerable plate 3 integrated therewith is provided below a seating surface 9 placed on a base 1, and a vertical shaft is provided on the lower surface thereof. 4 are protruded. The fixed arm 2 is provided on the upper surface of the base 1 so that the seat surface 9 and the steerable plate 3 can be easily moved.
And a friction reducing body 90 (held by a retainer). The fixed arm 2 is a motor switch 75
have.

A plurality of tie rods 5 are bundled and attached to the lower part of the vertical shaft 4, and the other end of the tie rod 5 is connected to a twin wheel caster 6 to control swing and perform trochoid propulsion. Has been made. The twin wheel caster 6
The revolving disk 7 is fixed to the lower surface of the revolving disk 7 so as to be able to revolve. The revolving disk 7 is held on the lower surface of the base 1 and is rotatable by a motor 73. (The above is called the trochoid propulsion mechanism.)

The turning table 7 has a plurality of balls arranged in a plurality of rings and has a stupid hole in the center through which the vertical shaft 4 passes. The motor 73 is powered by a battery 74. Reference numeral 9 denotes a rear wheel that supports a load and prevents the base 1 from rotating due to a reaction reaction of the twin wheel casters 6.

In the seat-chair automobile having the above-mentioned structure, the driver sitting straight as shown in FIG. 4 turns on the motor switch 75, supports the body with the fixed arm 2, moves the steerable plate 3 integrated with the seat surface 9, and moves in the running direction. Exercise while freely changing the running speed.

That is, the motor 73 is operated by the battery 74.
Rotates the turntable 7 via the gear 71, and turns it clockwise in FIG. When stopped, since the vertical shaft 4 is located at the center position of the turning table 7, the two-wheel caster 6 only makes a circular motion and does not run the seat.

The driver applies a force to the fixed arm 2 to apply a force to the seat surface 9.
Is moved forward, the vertical shaft 4 moves forward, causing the two-wheel caster to periodically swing through the tie rods 5 (trochoid propulsion), and the seat-chair vehicle is run using the cornering force.

When the amount of movement of the steerable plate 3 and the vertical axis 4 is increased, the speed of the seated car increases, and the running direction of the seated car is changed by changing the moving direction. When it is desired to stop, the vertical shaft 4 is returned to the center position of the swivel 7 to stop.

In the above embodiment, since the skirt 31 is provided integrally with the seating surface 9, in the event of a collision with a wall or the like, the vertical shaft 4 is pushed backward and automatically stopped.

[0019]

FIG. 5 shows another embodiment of a seat-chair vehicle, in which a pair of operating levers 22 are used to move a seat 9 mounted on a base 1 and a steerable plate 3 integrated therewith. Is provided, and the driver can drive by moving the pair of operation levers 22.

FIG. 6 shows still another example of a seat-chair car.
Although the operation lever 22 is provided in the same manner as in the above example,
The seat 9 is fixed, and the steerable plate 3 is slidably held between the seat 9 and the base 1.
Can move the steerable plate 3 about the fixed fulcrum 23.

FIG. 7 shows still another example of the seat-chair car, in which an operation rod 28 is implanted in the steerable plate 3 below the fixed seat surface 9, and the operation rods 28, 28 are used. This embodiment is different from the above embodiment in that the steerable plate 3 is operated by directly moving.

In the seat-chair vehicle of the present invention, a fixed arm (FIG. 1), an operation lever (FIGS. 5 and 6), an operation rod (FIG. 7) and the like are selected as operation means provided on the side of the seat surface 9.

[0023]

Since the present invention is configured as described above, it has the following effects.

An operating hand on the side of the seat (fixed arm 2)
Is provided, there is an advantage that the user can easily get on and off and does not break the design of the chair.

A steerable plate is provided below the seat surface, and a vertical axis projects downward from the steerable plate. A tie rod of a trochoid propulsion mechanism having a twin wheel caster as a driving means is rotatable with the vertical shaft. , So that the seat surface can be kept low, the load can be distributed to many small-diameter wheels, and it can run freely on tatami mats and carpets.

Further, it has a vibrator function by running vibration of a large number of small diameter wheels, and has an effect of relieving stiffness of muscles of a rider and eliminating fatigue.

According to the second and third aspects, since the steering is performed by moving the seat surface, there is an advantage that a lightweight and compact seat and chair vehicle having a simple structure can be obtained.

According to the fourth and fifth aspects, since the seat surface is fixed, there is an advantage that the vehicle can run more stably without shaking.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a seat-chair automobile according to the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a side view showing a use state of FIG. 1;

FIG. 5 is a side view showing another example of the present invention.

FIG. 6 is a side view showing another example of the present invention.

FIG. 7 is a side view showing another example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Fixed arm 3 Steerable plate 4 Vertical axis 5 Tie rod 6 Twin wheel caster 7 Revolver 8 Rear wheel 9 Seat surface 22 Operation lever 28 Operation rod 73 Motor 74 Battery

Claims (5)

[Claims] An operating means is provided on a side of a seat surface, and a steerable plate which can be moved by the operating means is provided below the seat surface. A seat chair vehicle characterized in that a tie rod 5 of a trochoid propulsion mechanism having a twin-wheel caster 6 as a driving means is rotatably connected to the vertical shaft 4. 2. The steerable plate 3 has a movable seat surface 9.
2. The seat-chair vehicle according to claim 1, wherein the operating means is a fixed arm and is fixed below. 3. The steerable plate 3 has a movable seat surface 9.
2. The seat-chaired automobile according to claim 1, wherein the operating means is fixed below and the operating means is an operating lever. 4. A fixed seating surface 9 on which the steerable plate 3 is fixed.
The operating means is slidably held below, and the operating means
2. The seat-chaired automobile according to claim 1, wherein the steering lever is configured to be movable by a control lever. 5. A fixed seating surface 9 on which the steerable plate 3 is fixed.
2. The seat chair automobile according to claim 1, wherein the operating means is formed as an operating rod 28 and is slidably held below, and the operating rod 28 and the steerable plate 3 are integrally connected. .