WO2014092232A1

WO2014092232A1 - Device for locking wheelchair

Info

Publication number: WO2014092232A1
Application number: PCT/KR2012/011478
Authority: WO
Inventors: 김동우
Original assignee: 모터웰 주식회사
Priority date: 2012-12-11
Filing date: 2012-12-26
Publication date: 2014-06-19
Also published as: KR20140075509A; KR101416213B1

Abstract

The present invention relates to a device for locking a wheelchair. According to the present invention, the device for locking a wheelchair which is provided in a transportation means such as buses, trains and ships so as to lock the wheelchair, comprises: a case provided to the bottom of the transportation means; an unlocking unit provided to an inner upper surface of the case; a driving unit coupled to the unlocking unit so as to operate the unlocking unit; and a locking fixture coupled at a predetermined position of the lower part of the wheelchair. The locking fixture is locked or released by the unlocking unit such that the wheelchair is locked to the transportation means.

Description

Wheelchair lock

The present invention relates to a wheelchair fixing device, and more specifically, to simplify the structure of the drive means to reduce the number of parts, economical, can reduce the occurrence of failure, and to reduce the noise by reducing parts such as chains and sprockets A wheelchair fastener that can be reduced and is easy to maintain.

In general, if the wheelchair is not fixed to a means of transportation such as a bus or a train, the wheelchair may move according to the flow of the means of transportation, thereby causing a safety accident, and the wheelchair may be fixed to the means of transportation to prevent the occurrence of a safety accident. Various devices are being developed.

Such a conventional wheelchair fixing device, referring to FIG. 1, includes a housing 10 and a first hook 12 and a first hook 12 that are alternately installed with respect to a groove 10a formed toward a center from one side of the housing 10. 2 hooks 14, a solenoid switch 16 provided to be spaced apart from the first hook 12 by a predetermined interval to rotate the second hook 14, and a predetermined distance from the first and

second hooks

12, 14 The first and

second limit switches

18 and 20 are installed to detect rotation of the first and

second hooks

12 and 14, respectively.

However, in the conventional wheelchair fixing device, the first and second limit switches 18 and 20 detect the operating states of the first and

second hooks

12 and 14 for fixing and releasing the wheelchair. If contact failure of the second limit switches 18 and 20 occurs, the solenoid switch 16 which rotates the second hook 14 malfunctions, such that the wheelchair is not correctly fixed or released. There is a problem that occurs frequently.

In addition, a wheelchair fixed to a conventional wheelchair fixing device is a wheelchair because the fixing pin (not shown) having a circular cross section installed below the wheelchair is fixed by the first and

second hooks

12 and 14 of the wheelchair fixing device. There is a problem that the fixing pin is rotated around the center, and the configuration is complicated by having a separate anti-rotation bracket (not shown) to prevent the rotation of the wheelchair fixed to the wheelchair fixing device.

Accordingly, an object of the present invention is to provide a wheelchair fixing device capable of reducing the number of components, a simple structure, reducing manufacturing costs, and improving productivity.

In addition, it is an object of the present invention to provide a wheelchair fixing device that can improve the overall structure simplification and operational stability.

In order to achieve the above and other objects of the present invention, in accordance with an embodiment of the present invention, a wheelchair fixing device installed on a moving means such as a bus, a train, and a ship to secure a wheelchair, the bottom surface of the moving means A case to be installed, an unlocking means installed on an inner upper surface of the case, driving means coupled to the unlocking means to operate the unlocking means, and a fastener coupled to a lower predetermined position of the wheelchair, The fixture provides a wheelchair fixing device, characterized in that the wheelchair is fixed or released by the unlocking means to be fixed to the moving means.

One side upper surface predetermined position of the case is characterized in that the guide groove for guiding the fastener to accurately enter the unlocking means is formed.

The unlocking means includes a housing having an upper cover coupled to an inner upper surface of the case, an opening coupled to an upper surface of the upper cover, and having an opening formed on one side thereof to allow the fixture to enter and exit, and a predetermined position inside the housing. A first seating portion is formed therein, a fork lever rotatably coupled to a hinge shaft provided in the first seating portion, and a second seating portion is formed at a predetermined position inside the housing at a predetermined distance from the first seating portion. And a ratchet lever rotatably coupled to a hinge shaft provided at the second seating portion, a lower cover coupled to a lower surface of the housing and having a coupling portion bent at one side, and rotatably coupled to the coupling portion. And an operating lever for rotating the ratchet lever.

The driving means is characterized in that it comprises a drive motor coupled to the connecting bracket installed in the coupling portion, and a drive lever coupled to the drive shaft of the drive motor to rotate the operating lever in accordance with the operation of the drive motor.

A stopper groove is formed at the center of the coupling part so that the end of the operating lever is inserted to limit the rotation angle of the operating lever.

A semicircular insertion groove is formed on a bottom surface of the first seating groove, and a coil spring for applying an elastic force to the fork lever is provided in the insertion groove, and the ratchet lever is provided on the hinge shaft provided in the second seating groove. It is characterized in that the tension spring is applied to the elastic force is provided.

According to the present invention having the above-described configuration, the number of components is reduced, the simple structure has a manufacturing cost is reduced, there is an effect that can improve the productivity.

In addition, there is an effect that can simplify the overall structure and improve the operational stability.

1 is a cross-sectional view showing a conventional wheelchair fixing device.

2 is a perspective view of a wheelchair fixing device according to an embodiment of the present invention.

Figure 3 is a perspective view showing the inside of the wheelchair fixing device according to an embodiment of the present invention.

Figure 4 is an exploded perspective view of the wheelchair fixing device according to an embodiment of the present invention.

5 is an exploded perspective view of the unlocking means and the driving means shown in FIG.

Figure 6 is an operating state diagram showing the operation of the unlocking means according to an embodiment of the present invention.

7 is a view showing a state in which the fastener is attached to the wheelchair according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: case 136: coupling portion

112: guide groove 136a: stopper groove

120: unlocking means 138: operating lever

122: upper cover 140: drive means

124: housing 142: connecting bracket

124a :: opening 144: drive motor

124b: cutout 144a: drive shaft

126: first seating portion 146: drive lever

126a: insertion groove 150: fixture

126b: coil spring

128: second seat

127: hinge pin

128a: tension spring

130: fork lever

130a: fixing groove

130b: jamming jaw

132: ratchet lever

132a: protrusion jaw

134: lower cover

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

Figure 2 is a perspective view of a wheelchair fixing device according to an embodiment of the present invention, Figure 3 is a perspective view showing the inside of the wheelchair fixing device according to an embodiment of the present invention, Figure 4 is a wheelchair according to an embodiment of the present invention 5 is an exploded perspective view of the locking means and the driving means shown in Figure 4, Figure 6 is an operating state diagram showing the operation of the unlocking means according to an embodiment of the present invention, Figure 7 Figure is a view showing a wheelchair attached state according to an embodiment of the present invention.

Wheelchair fixing device according to an embodiment of the present invention is installed on the means of transportation, such as buses, trains, and ships to secure the wheelchair.

2 to 7, the wheelchair fixing device 100 includes a case 110, an unlocking means 120, a driving means 140, and a fixture 150.

The case 110 is installed on the bottom surface of a moving means such as a bus, a train, and a ship, and a predetermined fixture 150 to be described later enters the unlocking means 120 at a predetermined position on one side of the upper surface of the case 110. Guide grooves 112 for guiding are formed. At this time, the guide groove 112 is preferably made of a funnel shape.

The unlocking means 120 is installed on the inner upper surface of the case 110 to fix or release the fixture 150.

The unlocking means 120 includes an upper cover 122, a housing 124, a fork lever 130, a ratchet lever 132, a lower cover 134, and an operating lever 138.

The upper cover 122 is formed of a rectangular plate and is coupled to the inner upper surface of the case 110.

The housing 124 has an upper surface coupled to the upper cover 122, and has an opening 124a formed at one side thereof to allow the fixture 150 to enter and exit.

Here, the first seating portion 126 is formed at a predetermined position inside the housing 124, and the second seating portion 128 is disposed at a predetermined position inside the housing 124 spaced apart from the first seating portion 126 by a predetermined distance. Is formed.

In addition, a semicircular insertion groove 126a is formed in the bottom surface of the first seating portion 126, and the coil spring 126b for applying the elastic force to the fork lever 130 in the clockwise direction in the drawing groove 126a. ) Is provided, and a tension spring 128a is applied to the hinge shaft 127 provided in the second seating groove 128 to apply the elastic force in the opposite direction to the ratchet lever 132 which will be described later.

The fork lever 130 is rotatably coupled to the hinge shaft 127 provided in the first seating part 126 to fix or release the fixture 150.

The fork lever 130 is formed with a fixing groove 130a into which the fixing tool 150 is inserted, and a locking jaw (132a) formed at one side of the ratchet lever 132 to be described later on the outer surface thereof. 130b) is formed.

The ratchet lever 132 is rotatably coupled to the hinge shaft 127 provided in the second seating portion 128 to limit the rotation of the fork lever 130.

One side of the ratchet lever 132 is formed with a protruding jaw 132a that is engaged with the engaging jaw 130b formed on the outer surface of the fork lever 130 described above.

The lower cover 134 is coupled to the lower surface of the housing 124, and has a coupling portion 136 formed at one side thereof.

Here, the stopper groove 136a is formed at the center of the coupling portion 136 to limit the rotational angle of the operating lever 138 by inserting the end of the operating lever 138 to be described later.

The actuating lever 138 is rotatably coupled to the engaging portion 136 to allow the ratchet lever 132 to rotate as described above. It is inserted into and positioned at the end of the ratchet lever 132.

In addition, the operating lever 138 is preferably connected to the spring installed in the coupling portion 136.

The driving means 140 is coupled to the unlocking means 120 to operate the unlocking means 120. The drive unit 140 is coupled to the drive motor 144 coupled to the connection bracket 142 installed on the coupling unit 136 and the drive shaft 144a coupled to the drive motor 144 to drive the motor 144. It includes a drive lever 146 for rotating the operation lever 138 in accordance with the operation of.

Fixture 150 is coupled to the lower predetermined position of the wheelchair 10 so that the wheelchair 10 is fixed to the moving means such as buses, trains, and ships is fixed or released by the above-described unlocking means 120.

Hereinafter, the operation state of the wheelchair fixing device according to an embodiment of the present invention having the configuration as described above will be described.

First, the wheelchair 10 in a vehicle, such as a bus, a train, and a ship, is moved to be positioned at the front of the wheelchair fixing device 100.

Subsequently, the locking means 120 is moved along the guide groove 112 formed at a predetermined position on one side of the upper surface of the case 110 by moving the wheelchair 10 to the lower predetermined position of the wheelchair 10. To be inserted into the opening 124a provided on one side of the housing 124 of the.

Subsequently, when the fastener 150 is inserted into the opening 124a, the fastener 150 pushes the fork lever 130 and the fork lever 130 is rotated counterclockwise. At this time, the ratchet lever 132 is rotated in the clockwise direction as the fork lever 130 rotates.

Then, when the latching jaw (130b) formed on the outer surface of the fork lever 130 is rotated to the position of the projection jaw (132a) formed on the outer surface of the ratchet lever 132, the ratchet lever 132 is tension spring (128a) Rotation in the counterclockwise direction by the elastic force of the projection jaw (132a) is caught on the locking jaw (130b) is fixed to the position of the fork lever 130 and at the same time the fixing groove 150 is formed in the fork lever 130 ( It is inserted into and fixed to 130a).

That is, the fastener 150 is inserted into the fixing groove 130a of the fork lever 130 to be fixed so that the wheelchair 10 is also fixed to the moving means.

On the contrary, when the user wants to release the fixing device 150, when the user operates a switch (not shown) provided at one side of the wheelchair fixing device 100, the driving motor 144 is driven and the driving motor 144 is driven. The driving lever 146 coupled to the driving shaft 144a of the thruster pushes the ratchet lever 132 while rotating.

When the driving lever 146 pushes the ratchet lever 132, the ratchet lever 132 rotates in a clockwise direction, and at the same time, the ratchet lever 132 is engaged with the protruding jaw 132a formed on the outer surface of the ratchet lever 132. The locking of the locking jaw 130b of the fork lever 130 is released.

When the locking jaw 130b is released, the fork lever 130 is rotated clockwise by the elastic force of the coil spring 126b. At this time, the fork lever 130 is inserted into and fixed to the fixing groove 130a of the fork lever 130. The fixing of the fixture 150 is released.

Therefore, according to the wheelchair fixing device according to the embodiment of the present invention, the number of component parts is reduced, the structure is simple, manufacturing cost is reduced, and there is an effect of improving the production line.

Although preferred embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art may variously modify and change the present invention without departing from the spirit of the invention as set forth in the claims below. It will be appreciated.

The present invention relates to a wheelchair fixing device, and more specifically, to simplify the structure of the drive means to reduce the number of parts, economical, can reduce the occurrence of failure, and to reduce the noise by reducing parts such as chains and sprockets It can be reduced and used as an easy-to-maintain wheelchair fixing device.

Claims

In the wheelchair fixing device for fixing the wheelchair is installed on the means of transportation, such as bus, train, and ship,

A case installed on the bottom surface of the moving unit;

Unlocking means installed on an inner upper surface of the case;

Drive means coupled to the unlocking means to operate the unlocking means; And

Includes; a fixture coupled to the lower predetermined position of the wheelchair,

The fastener is a wheelchair fixing device, characterized in that fixed or released by the unlocking means so that the wheelchair is fixed to the moving means.
The method according to claim 1,

Wheel fixing device characterized in that the guide groove for guiding the fastener to accurately enter the unlocking means is formed at a predetermined position on one side of the case.
The method according to claim 1, wherein the unlocking means,

An upper cover coupled to an inner upper surface of the case;

A housing having an upper portion coupled to the upper cover and having an opening formed at one side thereof to allow the fixture to enter and exit;

A fork lever rotatably coupled to a hinge shaft provided in the first seating portion at a predetermined position inside the housing;

A ratchet lever spaced apart from the first seating portion at a predetermined position in the housing, and having a second seating portion rotatably coupled to a hinge shaft provided in the second seating portion;

A lower cover coupled to a lower surface of the housing and having a coupling part bent at one side; And

And a working lever pivotally coupled to the coupling part to rotate the ratchet lever.
The method of claim 3, wherein the drive means,

And a driving motor coupled to a connection bracket installed at the coupling part, and a driving lever coupled to the driving shaft of the driving motor to rotate the operating lever according to the operation of the driving motor.
The method according to claim 3,

The stopper groove, characterized in that the stopper groove is formed in the center of the coupling portion to the end of the operating lever is inserted to limit the rotation angle of the operating lever.
The method according to claim 3,

A semicircular insertion groove is formed on a bottom surface of the first seating groove, and a coil spring for applying an elastic force to the fork lever is provided in the insertion groove.

The hinge shaft provided in the second seating groove is a wheelchair fixing device characterized in that the tension spring for applying an elastic force to the ratchet lever is provided.