KR20060058803A - Folding structure of detachable mobile seat-wheel for automobile - Google Patents

Abstract

The present invention relates to a wheel folding structure of a wheelchair seat of the driver's seat of a vehicle, and includes a wheel that is foldable to enable a change of use as a wheelchair at the bottom of the driver's seat, and is coupled to a lift device at the bottom of the cushion part of the seat. A docking unit having a dockable guide unit, and the driver's seat seat can be moved in and out of the driver's seat while the driver's seat is accessible through a side door. The rear wheels are interlocked with each other, but the front wheels are folded inward of the seat and the rear wheels are folded forward to solve the interference problem between the rear wheels and the car body. Particularly, a single drive motor is used to reduce parts and consume power. Wheelchairs in cars that can achieve benefits such as reduction It relates to the structure of the driver's seat folding wheels.

Car, Wheelchair, Combination, Driver Seat

Description

Folding structure of Detachable Mobile Seat-wheel for automobile}             

1 is a side view showing a wheel folding structure of a wheelchair combined driver's seat of a vehicle according to the present invention;

2 is a view showing a push link bar as a wheel folding structure of a wheel chair seat for a combined vehicle according to the present invention;

3 is a wheel folding structure of a wheelchair seat of the driver's seat according to the invention, a view showing a mounting state of the push link bar,

Figure 4 is a wheel folding structure of the wheelchair seat driver's seat of the vehicle according to the present invention, a perspective view showing a front wheel folding portion,

5 is a view showing a folding tube as a wheel folding structure of a wheelchair seat of a combined vehicle of the vehicle according to the present invention;

6 is a wheel folding structure of a wheelchair seat of the vehicle combined wheelchair according to the present invention, a view showing a coupling state of the folding tube and the tube mounting pipe,

Figure 7 is a wheel folding structure of the wheelchair seat of the vehicle combined wheelchair according to the present invention, the short tube showing the coupling state of the folding tube and tube mounting pipe and folding guide pin,

8 is an operation view showing the operating state of the wheel folding structure of the wheelchair seat driver's seat of the vehicle according to the present invention,

Figure 9 is a view showing a state combined with the wheel folding structure and the lift device of the combined wheel seat of the wheelchair of a conventional vehicle.

<Explanation of symbols for the main parts of the drawings>

10: rear wheel folding unit 11: the rear wheel

12: wheel frame 13: guide pin

20: linking means 21: push link bar

22: first guide groove 23: second guide groove

24: folding guide pin 30: front wheel folding unit

31: Front wheel 32: Wheel frame

33: folding tube 34: folding guide groove

35: tube mounting pipe 36: guide slot groove

40: seat frame 41: guide pin

50: drive motor

The present invention relates to a wheel folding structure of a wheelchair seat of a vehicle combined use of a vehicle, and more particularly, by using a single drive motor, the front and rear wheels are interlocked with each other, and the front wheels are folded into the inside of the seat, and the rear wheel is the front. By folding to the side, the wheel folding structure of the wheelchair seat driver's seat of the vehicle that can solve the interference problem of the rear wheel and the vehicle body.

In general, various types of vehicles for the disabled for the physically handicapped are not available and can be broadly classified into the following two types.

A vehicle equipped with a driving assistance device for the handicapped person with a disability in which a specific part of the body is inconvenient by attaching a device capable of operating an Excel and a brake by hand, a lift device that allows the disabled person to ride in a wheelchair while being in a wheelchair, and a seat of the vehicle in a wheelchair. When a normal person traveling with a disabled person is equipped with a slide-up sheet that can be easily carried on, it may be classified as a vehicle for convenient care.

In these cases, people with disabilities may need a third party to drive a heavy wheelchair in their car or drive a vehicle for spatial movement.

As a result, the right of movement of the disabled is not guaranteed by the devices up to now, and in order to secure the right of movement of the disabled, the disabled can move to the vehicle alone and ride in the vehicle without assistance of a third party and assist in wheelchairs. The vehicle should be loaded on the vehicle, the vehicle can be driven to the desired destination, and after arriving at the destination, the passenger must get off the vehicle alone and rely on a wheelchair to enable the movement of the local area (for example, banking).

It is very insufficient for the current device to be able to respond alone to the disabled without the help of a third party in all the above-mentioned movement process, and the device related to the Detachable Mobile Seat that can be used as a wheelchair to solve the above difficulties. Devised.

These seats allow people with disabilities to independently access, ride, store wheelchairs, drive, and move without the help of a third party. One of the most important parts of this seat is that it can be used as a car seat. The difference between the height of the chair and the height of the chair when used as a wheelchair is that the part supporting the wheel has a folding structure to overcome the difference.

As shown in FIG. 9, the wheelchair combined driver's seat having such a folding structure is disclosed in Korean Patent Application No. 10-2004-006496, filed by the applicant of the present application, and the conventional wheel folding mechanism includes the front wheel 110. Each driving motor (not shown) is installed on the rear wheel 120 to seat the front and rear wheels 110 and 120 in the same direction, respectively, by the power of the motor.

However, such a conventional wheelchair combined seat seat structure occupies a lot of space behind the seat 100 occupies a lot of space in which the lift device 200 is installed, which becomes a constraint on the design of the lift device 200.

Moreover, the driving motor is also installed in the rear wheel 120 to occupy more space, and the lift device 200 is combined with the wheelchair seat 100 and pulls the seat 100 into the vehicle interior. As the rear wheel 120 protrudes backwards in the process of rotating the vehicle to the driver's seat by rotating it by 90 degrees, the radius of rotation is increased, so the problem of avoiding interference with the vehicle body during the rotation may occur seriously and becomes an important design constraint during design. .

Therefore, in order to reduce interference when the wheelchair combined driver's seat 100 is rotated, there is a problem in that the length of the rotating part is shortened as much as possible by changing the structure of the wheel to be reduced in size or folding, especially the front and rear wheels 110 and 120. Since each drive motor is installed in the power supply, there is a problem that a lot of power consumption and material cost.

Therefore, the present invention has been invented to solve the above problems, equipped with a foldable wheel to be able to change the use of the wheelchair to the bottom of the driver's seat, the combination of the lift device on the bottom of the cushion portion of the seat A docking unit having a dockable guide unit, and the driver's seat seat can be moved in and out of the driver's seat while the driver's seat is accessible through a side door. The rear wheels are interlocked with each other, but the front wheels are folded inward of the seat and the rear wheels are folded forward to solve the interference problem between the rear wheels and the car body. Wheelchair combined use of car which can bring about advantages such as reduction To provide a wheel folding seats seat structure is the purpose of the invention.

Hereinafter, the features of the present invention for achieving the above object are as follows.

The present invention, in the wheel folding structure of the wheelchair seat driver's seat of the vehicle in which the wheel frame on which the wheel is mounted is folded by a drive motor,

A rear wheel folding unit capable of folding operation through a gear structure connected to a single drive motor;

Linking means connected with the rear wheel folding unit to guide the front wheel to be folded into the seat;

It characterized in that it comprises a front wheel folding portion for transmitting the folding operation force of the rear wheel folding portion by the link means to operate the folding guide means integrally coupled to the wheel frame.

In particular, the linkage means includes a first guide groove connected to the guide pin mounted to the wheel frame of the rear wheel, a second guide groove to maintain the straightness guided by the guide pin mounted to the seat frame, and an end of the front wheel. It is characterized in that the push link bar of the linear bracket shape having a folding guide pin fixed to.

The folding guide means may include: a folding tube integrally coupled to the wheel frame of the front wheel and having a folding guide groove having a spiral trajectory on its outer circumferential surface;

The tube mounting pipe is fixed to the seat frame and has a linear guide slot groove inserted into the folding tube to guide the folding guide pin together with the folding guide groove.

The present invention having such a feature is equipped with a wheel that is foldable so that it can be changed into a wheelchair at the bottom of the driver's seat, and equipped with a docking portion that can be coupled to the lift device 200 at the bottom of the cushion portion of the seat, In the driver's seat structure of the wheelchair combined driver seat in which the driver's seat is accessible through the side door and can be moved to the driver's seat, the single driver mounted on the wheel frame 12 of the rear wheel 11 is provided. The rear wheel 11 is folded by the driving motor 50 using the motor 50, and the front wheel 31 is pushed by the push link bar 21 connected to the wheel frame 12 of the rear wheel 11. As the folding tube 33 rotates so that the folding tube 33 of the front wheel 31 rotates, the front wheel 31 is interlocked with the rear wheel 11 to be folded.

The present invention having such a function will be described in detail with reference to the accompanying drawings as follows.

As shown in FIG. 1, the rear wheel folding unit 10 has the same structure and function as a conventional folding unit operating in a linkage action of a gear means by driving of the driving motor 50.

On the other hand, Figure 2 shows a push link bar (21) is a link link (push link bar 21) for operating the front wheel folding section 30 in conjunction with the rear wheel folding section 10, Figure 3 is such a push As the link bar 21 is mounted on the seat frame, as shown in the accompanying drawings, the push link bar 21 has a curved linear bracket shape in several places, and the rear wheel 11 has a wheel. The first guide groove 22 is formed to be connected to the guide pin 13 mounted on the frame 12, and the middle portion is guided by two guide pins 41 mounted on the seat frame 40. Two second guide grooves 23 for holding are formed.

Meanwhile, the folding guide pin 24 is installed at the end of the front wheel 31 so that the push link bar 21 moves along the folding guide groove 34 of the folding tube 33 to be described later during the linear movement. 31) becomes foldable.

4 is a view showing the shape of the front wheel folding portion 30 to be folded by the operation of the push link bar 21, the folding tube 33 is a tube shape having a predetermined length, the wheel of the front wheel 31 It is connected to the frame 32, and the tube mounting pipe 35 is installed inside the folding tube 33.

The tube mounting pipe (35) is formed with a guide slot groove (36) for guiding the linear movement of the folding guide pin (24) installed at the front end of the front wheel (31) of the push link bar (21), the push link bar (21) Will guide the linear motion of.

Therefore, the linear movement of the push link bar 21 is guided by the guide slot groove 36 installed in the second guide groove 23 and the tube mounting pipe 35 to maintain the straightness.

5 and 6 are views showing the shape of the folding tube 33 and the coupling state of the folding tube 33 and the tube mounting pipe 35 of the present invention. As shown in the drawing, the folding tube has a predetermined length. The tube mounting pipe 35 is installed inside the tube 33, and the tube mounting pipe 35 is connected to and fixed to the seat frame 40 by a bracket (see FIG. 4).

The folding guide pin 24 installed at the tip of the push link bar 21 penetrates the folding guide groove 34 of the folding tube 33 and is mounted to the guide slot groove 36 of the tube mounting pipe 35.

This is because the guide slot groove 36 of the tube mounting pipe 35 in which the folding guide pin 24 of the push link bar 21 is fixed to the seat frame 40 and the folding tube 33 mounted on the outer circumference thereof. Simultaneously guided along the folding guide groove 34 of the bar, the folding guide groove 34 draws a constant spiral trajectory, so that the folding tube 33 rotates itself.

The trajectory serves to set a rotation amount of the folding tube 33 to rotate in a spiral shape that descends from a high point to a low point while drawing a certain round rather than a parallel line.

Therefore, to describe the operating principle of the present invention as a whole, when the driving motor 50 is driven by the operator, the wheel frame 12 of the rear wheel 11 made of a conventionally known technique is rotated, The push link bar 21 is pushed toward the front wheel 31 through the guide pin 13 fixed to the wheel frame 12 of the rear wheel 11, and the push link bar 21 is a guide slot groove 36. The linear guide is guided by the guide bar, and the folding guide pin 24 installed at the tip of the push link bar 21 is linearly moved along the guide slot groove 36 of the tube mounting pipe 35. .

The folding guide pin 24 moves along the folding guide groove 34 of the folding tube 33 while linearly moving, and the folding guide groove 34 is helically formed in the folding tube 33. The linear motion force of the guide pin 24 eventually rotates the folding tube 33.

By the rotational movement of the folding tube 33, the front wheel 31 integrally coupled thereto will eventually be folded inward.

As described above, according to the wheel folding structure of the wheelchair combined driver's seat of the automobile according to the present invention, the following effects are obtained.

1. The rear wheels can be folded forward to ease design by reducing the possibility of interference between the wheelchair seat (DMS) and the lift system.

2. The rear wheels can be folded forward to reduce the radius of rotation of the seat, which reduces the possibility of interference with the body and facilitates design.

3. The front wheels fold inward to exclude interference with the rear wheels that fold forward.

4. Since the front and rear wheels are all folded using one drive motor, the power consumption is reduced and the number of parts is reduced, thereby reducing the cost.

Claims (3)

In the wheel folding structure of the wheelchair seat driver seat of the vehicle in which the wheel frame is mounted by the drive motor is folded, A rear wheel folding unit capable of folding operation through a gear structure connected to a single drive motor; Linking means connected with the rear wheel folding unit to guide the front wheel to be folded into the seat; Wheel folding structure of a wheelchair combined driver's seat of a vehicle comprising a front wheel folding portion for transmitting the folding operation force of the rear wheel folding portion by the link means to enable the folding guide means integrally coupled to the wheel frame. The method according to claim 1, The linkage means may include a first guide groove connected to the guide pin mounted on the wheel frame of the rear wheel, a second guide groove to maintain the straightness by the guide pin mounted on the seat frame, and fixed to the end of the front wheel. Wheel folding structure of the driver's seat seat for both wheels of the vehicle, characterized in that the push link bar of the linear bracket shape having a folding guide pin. The method according to claim 1 or 2, The folding guide means includes: a folding tube integrally coupled to the wheel frame of the front wheel and having a folding guide groove having a spiral trajectory on its outer circumferential surface; The wheel of the wheelchair seat of the vehicle combined wheel seat, which is fixed to the seat frame and is made of a tube mounting pipe having a linear guide slot groove inserted into the folding tube to guide the folding guide pin together with the folding guide groove. Folding structure.

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