KR20170019191A

KR20170019191A - System for closing and opening door of container for vehicle

Info

Publication number: KR20170019191A
Application number: KR1020150113272A
Authority: KR
Inventors: 김학용
Original assignee: 김학용
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2017-02-21
Also published as: KR101758738B1

Abstract

The present invention relates to an opening and closing system of a container door for a vehicle. According to the present invention, the door opening and closing system comprises: a door (5) opening or closing an opening (4) formed on a side of a vehicle; a pair of lower supporting rods (19, 23) connecting lower opposite sides of the door (50) and a lower side of opposite inner frames (3) of the opening (4) so as to be able to be hinged therebetween; a pair of upper supporting rods (7) connecting upper opposite sides of the door (5) and an upper side of the opposite inner frames (3) of the opening (4) so as to be hinged therebetween; a connection bar (13) connecting the pair of upper supporting rods (7) to each other in one body; and a driving portion (9) rotating the pair of upper supporting rods (7) clockwise or counterclockwise and thereby opening or closing the door (5). Accordingly, the present invention may easily open or close a door of a container that is not shown well enough even from a bus drivers seat, by enhancing the door of the container to be electrically operated.

Description

[0001] The present invention relates to a door opening / closing system for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a vehicle door opening / closing system for a vehicle, and more particularly, to a technology for opening and closing an electric door by improving the opening and closing structure of a loading door.

Generally, a van, such as a bus, should carry not only many passengers but also cargo. Therefore, a separate space for loading cargo is required, and a loading box is usually provided on the lower layer of the bus.

Such a loading box can be used to load cargo by cutting the rear wall of the bus and forming a space, and then opening and closing the door by attaching the door to the cut opening.

However, in the conventional loading box, since the door is mounted to the vehicle body by a hinge or the like, there is a problem that it is troublesome to manually open or close the door when opening and closing the door.

Registered Utility Model No. 20-133908 (Name: Door structure for buses)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an electric vehicle in which a door of a loading box, , And at the same time secondarily, by applying the anti-pinch system in combination, it is possible to prevent the object from being caught between the door and the loading box when the door is automatically closed due to the electric type, To provide a load on the bus that can be sensed and closed.

According to an aspect of the present invention, there is provided a system for opening and closing a door of a vehicle loading door,

A door (5) for opening and closing an opening (4) formed in a side wall of the vehicle body;

A pair of lower support rods (19, 23) hingably connected to both the lower side of the door (5) and the lower side of both side inner frames (3) of the opening (4);

A pair of upper support rods 7 hingably connecting the upper side of the door 5 and the upper side of both side inner frames 3 of the opening 4;

A connection bar 13 integrally connecting the pair of upper support rods 7;

And a driving unit 9 for opening and closing the door 5 by rotating the pair of upper support rods 7 clockwise or counterclockwise.

As described above, the loading door opening and closing system of the vehicle according to the embodiment of the present invention has the following advantages.

First, by applying the three kinds of apparatuses of the opening and closing structure of the loading door to the opening and closing device of the loading door, the anti-jamming structure and the soft closing device in an organic way, it is possible to firstly seek the convenience of electric type, It is possible to reduce the risk of a safety accident by preventing electric shock from being caught by the electric motor, and thirdly, there is an advantage that the door can be easily recognized when the door is not completely closed.

That is, the door of the loading box can be opened or closed by a simple method of operating a switch on the driver's seat or by a remote controller. At this time, since the loading box is not visible in the driver's seat due to the nature of the bus, It is difficult to detect that the object is caught between the loading box and the loading box, so that it is automatically detected and it is possible to prevent the door from being closed any more.

In addition, since the door is not completely closed at the driver's seat of the bus, the door can be fully closed automatically by the motorized method if the door is not closed completely by mounting the door soft closing device.

Second, theft detection can be prevented by attaching an open sensor to the door and forcing the door of the loading box to open.

1 is a perspective view showing a bus to which a loading door opening and closing system is applied according to an embodiment of the present invention.
FIG. 2 is a side view showing the opened state of the loader door opening / closing system shown in FIG.
3 is a perspective view showing the structure of the loading / unloading door opening / closing system shown in FIG.
4 is an enlarged partial enlarged view of the portion "A" in Fig.
5 is a side view showing a chain system as another embodiment of a driving unit for driving the door shown in FIG.
6 is a front view of the driving unit of the chain type shown in FIG.
7 is a side view showing a pulley system as another embodiment of a driving unit for driving the door shown in FIG.
8 is a front view of Fig.
FIG. 9 is a side view showing a gear system as another embodiment of a driving unit for driving the door shown in FIG. 3. FIG.
10 is a front view of Fig.
Fig. 11 (a) is a view showing a state before fully closed as the door sorting closing apparatus shown in Fig. 3, and Fig. 11 (b) is a view showing a completely closed state.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a loading door opening and closing system of a bus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figs. 1 to 4, the loading door opening / closing system 1 of the bus proposed by the present invention is mounted on the main wall 2 of the bus in a rolling manner.

The loading and unloading door system 1 includes a door 5 for opening and closing an opening 4 formed in a side wall 2 of the vehicle body; A pair of lower support rods (19, 23) hingably connected to both the lower side of the door (5) and the lower side of both side inner frames (3) of the opening (4); A pair of upper support rods 7 hingably connecting the upper side of the door 5 and the upper side of both side inner frames 3 of the opening 4; A connection bar 13 integrally connecting the pair of upper support rods 7; And a driving unit 9 for opening and closing the door 5 by rotating the pair of upper support rods 7 clockwise or counterclockwise.

In the load cell system having such a structure, the pair of lower support rods 19 and 23 are mounted on the lower sides of both sides of the opening 4 of the loading box, respectively, and have the same structure. Therefore, one lower supporting bar 19, 23 will be described.

The lower support rods 19 and 23 are connected at one end to both sides of the lower portion of the door 5 and at the other end to the lower side of the inner frame 3 of the opening 4. One end of the lower support rods 19 and 23 is connected to the door lower bracket B1 protruded to the lower portion of the door 5 by a hinge pin and the other end is mounted to the lower side of the inner frame 3 of the opening 4 And is connected to the lower bracket B2 by a hinge pin.

Therefore, the door 5 is hingably connected to the loading box by the lower support rods 19 and 23, so that the door 5 can be raised or lowered.

A pair of upper support rods 7 are also mounted on both sides of the opening 4 of the loading box and have the same structure. Therefore, one upper support rod 7 will be described.

One end of the upper support rod 7 is connected to both sides of the upper portion of the door 5 and the other end is connected to the upper side of the inner frame 3 of the opening 4. One end of the upper support rod 7 is connected to a door upper bracket B3 protruding from the upper portion of the door 5 by a hinge pin and the other end is connected to an upper bracket B4 .

At this time, the upper bracket B4 is connected to the inner frame 3 of the opening 4 by the hinge pin and the lower end A2 is connected to the cylinder 17 of the cylinder assembly 9, do. At this time, the cylinder 17 is connected to the lower end A2 of the upper bracket B4 by the hinge pin.

Therefore, the door 5 is hingably connected to the loading box by the upper support rod 7, so that the door 5 can be raised or lowered when the cylinder assembly 9 is driven.

The upper support rod 7 is connected to the driving unit 9 so that it rotates clockwise or counterclockwise when driving the driving unit 9 to move the door 5 up and down.

The driving unit 9 may be of various types, for example, a cylinder 17 system.

That is, the cylinder assembly 9 includes a main body 16 for generating power; And a cylinder 17 mounted on the front end of the main body 16 so as to be able to move back and forth. The cylinder assembly 9 is mounted inside the loading box to open and close the door 5. The cylinder assembly 9 is of hydraulic or pneumatic type and is mounted on both sides or one side of the loading box.

When the main body 16 is driven, the cylinder assembly 9 pushes the lower end A2 of the upper bracket B4 in the clockwise direction by advancing the cylinder 17, The pair of upper support rods 7 are lifted upward by being rotated clockwise about the hinge axis P. [ Therefore, the door 5 is raised by the upper and lower support rods 19 and 23 and is opened.

Conversely, when the cylinder 17 is moved backward, the lower end A2 of the upper bracket B4 is pulled and rotated in the counterclockwise direction, and the pair of upper support rods 7 are also rotated counterclockwise, Is lowered.

Thus, the cylinder 17 of the cylinder assembly 9 is moved back and forth to push or pull the upper support rod 7, thereby moving the door 5 up and down to open or close the door.

Then, the cylinder assembly 9 is operated by the control switch P mounted on the driver's seat. In other words, when the control switch P is connected to the main body 16 of the cylinder assembly 9, when it is turned on, the unidirectional power is transmitted to the main body 16 to advance the cylinder 17, , The opposite direction power is transmitted to the main body 16, and the cylinder 17 is moved backward.

It is also possible to open and close the door 5 by controlling the control switch by a remote control or the like in addition to the method of opening and closing the door 5 by the control switch P of the driver's seat. At this time, the remote controller is provided with a signal transmitter and the control switch P is equipped with a receiver, so that the door opening / closing signal can be exchanged.

In the above description, the cylinder 17 is used as the driving unit 9. However, the present invention is not limited to this, and various modifications may be made.

For example, a chain system as shown in Figs. 5 and 6 is also possible. That is, the first gear 26 is mounted on the connecting bar 13 connected to the upper support rod 7, and the second gear 24 is mounted on the inner side of the loading box separated by a certain distance. At this time, both ends of the connecting bar 13 are rotatably supported by the hinge pin P1 on the inner frame 3 of the loading box.

The second gear 24 is connected to the motor 22 or the like and is connected to the first gear 26 by the chain 20. At this time, the motor 22 is a motor capable of rotating in the forward and reverse directions.

Therefore, when the motor 22 is driven, the second gear 24 is rotated, and the rotational force of the second gear 24 is transmitted to the first gear 26 through the chain 20, So that the upper support rod 7 can be rotated clockwise or counterclockwise.

The present invention is not limited to such a chain method, but a belt 21 and a pulley type are also possible.

7 and 8, the first pulley 25 is disposed on the connecting bar 13 connecting the upper support rod 7, and the second pulley 27 is disposed on the inner side of the loading box, . At this time, both ends of the connecting bar 13 are rotatably supported by the hinge pin P1 on the inner frame 3 of the loading box.

The second pulley 27 can be driven by a motor 23 or the like, and the motor 23 can be rotated in the forward and reverse directions.

The first pulley 25 and the second pulley 27 are connected by a belt 21.

Therefore, when the motor 23 is driven, the second pulley 27 rotates, and the rotational force of the second pulley 27 causes the first pulley 25 to rotate through the belt 21, Can be rotated clockwise or counterclockwise to raise and lower the upper support bar 7 to open and close the door 5. [

At this time, the belt 21 is connected between the first pulley 25 and the second pulley 27, but it is also possible to connect the first pulley 25 and the second pulley 27 by a wire. In this case, the wire must be capable of transmitting rotational force between the first and second pulleys 25, 27 by having appropriate tension.

Although the pulley system has been described in the above embodiment, the present invention is not limited to this but a gear system can be used.

9 and 10, the driven gear 32 is mounted on the connecting bar 13 connected to the upper support rod 7 and the driving gear 34 is mounted on the adjacent position to drive the driven gear 32 ). At this time, both ends of the connecting bar 13 are rotatably supported by the hinge pin P1 on the inner frame 3 of the loading box.

The driving gear 34 can be rotated by a motor 36 capable of normal and reverse rotations.

The driving gear 34 is rotated by the motor 36 and the driven gear 32 meshed therewith rotates to rotate the connecting bar 13 to move up and down the upper support rod 7 to rotate the door 5, Can be opened and closed.

As described above, various methods such as a cylinder type, a gear type, a chain type, a pulley type, and a wire type can be used as the driving portion 9 for moving the door 5 up and down.

On the other hand, when the door 5 of the loading box is closed, it can be automatically stopped when there is an object between the door 5 and the inner frame 3 of the wall, thereby preventing the object from being caught.

That is, when the door 5 is to be closed by driving the cylinder assembly 9 but the door 5 is not closed because an object is caught between the door 5 and the frame 3, ), A current equal to or higher than the normal value flows.

Therefore, a sensor S for sensing the current value is mounted on the cylinder assembly 9, and when the sensor S senses the current, the power supplied to the cylinder assembly 9 is shut off.

In this way, when the power supplied to the cylinder assembly 9 is cut off, the cylinder 17 is no longer moved backward and is kept in a stopped state, so that the object is no longer caught.

Meanwhile, as another embodiment of the present invention, the loading door 5 may be provided with the soft closing device 40 so that the door 5 can be automatically closed when the loading door 5 is not completely closed.

11 (a), the soft closing device 40 of the door 5 is provided with a latching groove h which is mounted on the loading box and is capable of normal and reverse rotation and into which the latch 42 of the door 5 is inserted, A latch (41) formed with a latch (41); Fixing levers (52, 54) spaced apart from the latches (41) and fixed by rotating the latches (41) by a predetermined angle; A sensor (44) arranged around the periphery of the latch (41) to sense whether the latch (42) of the door (5) is inserted into the latching groove (h); A motor M for rotating forward and backward by a signal of the sensor 44; And a cable C connecting the motor M and the fixed levers 52 and 54. [

The door soft closing device 40 detects the sensor 44 when the latch 42 approaches the latching groove h of the latch 41 to drive the motor M, The first lever 52 of the fixed lever 52 is rotated in the counterclockwise direction and the second lever 54 connected to the hinge is moved upward to move the latch 41 at a predetermined angle The door 5 can be closed by rotating and fixing it.

11 (a), when the loading door 5 is not completely closed, the latch 42 of the door 5 is inserted into the latching groove h of the latch 41 .

The first lever 52 is elastically supported by the coil spring 56 in a state where the first lever 52 is engaged with the rotation shaft 48 so that the left end And the right end is in a descending state. The upper bent portion 50 of the second lever 54 is engaged with the protruding portion 46 of the latch 41 and the upper bent portion 50 of the second lever 54. Accordingly, the second lever 54, which is hinged to the right end of the first lever 52, Non-contact state.

11 (b), when the latch 42 is inserted into the latching groove h of the latch 41 as the loading door 5 approaches the closed position, And transmits a signal to the motor M through the control unit.

The motor M is driven by this signal to pull the cable C and the cable C pulls the first lever 52 in the counterclockwise direction and relatively the second lever 54 moves up . The second lever 54 is lifted so that the bent portion 50 presses the protruding portion 46 of the latch 41 and rotates it by a predetermined angle and fixes it.

The latch 42 of the door 5 can be stably fixed to the latching groove h of the latch 41. [ Such a soft closing device is useful in that it can automatically close the cab at the driver's seat with the invisible load.

On the other hand, the loading door 5 is equipped with an alarm to prevent theft. That is, as shown in FIG. 4, the first magnetic sensor 61 is mounted on the door 5, and the second magnetic sensor 62 is mounted on the wall of the loading box to correspond to each other. Therefore, when the door 5 is closed on the loading box, the first and second magnetic sensors 61 and 62 contact each other, and the alarm lamp does not operate.

At this time, when the door 5 is forcibly opened, a gap is generated between the door 5 and the loading box, and the alarm lamp is operated by the first magnetic sensor 61 and the second magnetic sensor 62 falling off . Therefore, the driver can immediately recognize theft attempt of the loader. At this time, the alarm lamp is disposed at a position adjacent to the control switch P provided on the driver's seat of the bus, so that the driver can check whether the door is opened or closed even in the driver's seat without having to approach the load box.

In the above description, the alarm is operated by the magnetic sensor. However, the present invention is not limited thereto, and the alarm lamp can be operated by sensing the opening of the door.

Claims

A door (5) for opening and closing an opening (4) formed in a side wall of the vehicle body;
A pair of lower support rods (19, 23) hingably connected to both the lower side of the door (5) and the lower side of both side inner frames (3) of the opening (4);
A pair of upper support rods 7 hingably connecting the upper side of the door 5 and the upper side of both side inner frames 3 of the opening 4;
A connection bar 13 integrally connecting the pair of upper support rods 7;
And an electric drive unit (9) for opening and closing the door (5) by rotating the pair of upper support rods (7) clockwise or counterclockwise.

The method according to claim 1,
The lower support rods 19 and 23 are connected to a bracket projected on the lower portion of the door 5 by a hinge pin and the other end is connected to a bracket mounted on the lower side of the inner frame 3 of the opening 4 by a hinge pin Connected,
The upper support bar 7 is connected to a bracket of a door 5 protruded at an upper end of the door 5 by a hinge pin and the other end is connected to an upper bracket mounted on the upper side of the inner frame 3 of the opening 4 by a hinge , And the lower end is moved forward and backward by the driving unit (9).

The method according to claim 1,
The driving unit 9 includes a main body 16 for generating power; And a cylinder assembly (9) composed of a cylinder (17) mounted on the front end of the main body (16) so as to be able to move back and forth,
When the main body 16 is driven, the cylinder assembly 9 pushes the lower end of the upper bracket in the clockwise direction by advancing the cylinder 17, and a pair of upper support rods 7 connected to the upper end rotate clockwise The door 5 is opened by being rotated and lifted upward,
On the contrary, when the cylinder 17 is moved backward, the lower end of the upper bracket is pulled and rotated in the counterclockwise direction, and the pair of upper support rods 7 are also rotated in the counterclockwise direction, whereby the door 5 descends, And closing the door of the vehicle.

The method according to claim 1,
The driving unit 9 includes a first gear mounted on a connecting bar 13 connected to an upper supporting rod 7, A second gear (24) mounted on the inside of the loading box spaced apart by a predetermined distance; A motor 22 for rotating the second gear 24; Wherein the upper support bar (7) can be rotated in a clockwise or counterclockwise direction by connecting the first gear (26) and the second gear (24) to rotate the first gear (26).

The method according to claim 1,
The driving unit 9 includes a belt 21 and a pulley type first pulley 25 disposed on the connecting bar 13 of the upper supporting rod 7; A second pulley (27) disposed inside the loading box at a distance away; A motor for rotating the second pulley 27; The first pulley 25 and the second pulley 27 are connected to each other so that the first pulley 25 is rotated to rotate the upper support rod 7 clockwise or counterclockwise, Loading / unloading door opening / closing system.

The method according to claim 1,
The driving unit 9 includes a driven gear 32 mounted on the connecting bar 13 of the upper support rod 7; A drive gear (34) mounted at an adjacent position to rotate the driven gear (32); The drive gear 34 is rotated by the motor 36 and the driven gear 32 meshed therewith is rotated to rotate the upper support rod 7 by rotating the drive gear 34, And the door (5) can be opened and closed.

The method according to claim 1,
A soft closing device 40 which automatically closes the loader door 5 is further included,
The door (5) soft closing device (40) comprises: a latch (41) provided with a latching groove (h) in which the latch (42) of the door (5) is inserted;
Fixing levers (52, 54) spaced apart from the latches (41) and fixed by rotating the latches (41) by a predetermined angle;
A sensor disposed around the vicinity of the latch 41 to sense whether the latch 42 of the door 5 is inserted into the latching groove h;
A motor for rotating forward and backward by a signal of a sensor;
And a cable (C) connecting the motor and the fixed levers (52, 54)
When the latch 42 approaches the latching groove h of the latch 41, the sensor senses the latch and drives the motor. When the cable C is pulled by driving the motor, the latching levers 52, Wherein the first lever of the first door is rotated in a counterclockwise direction and the second lever connected to the hinge is moved upward to rotate the latch by a predetermined angle and then fixed to close the door.

The method according to claim 1,
An alarm is additionally provided in the loading box,
This alarm device includes a first magnetic sensor 61 mounted on the door 5; A second magnetic sensor 62 mounted on a wall of the loading box and corresponding to the first magnetic sensor 61; When the door 5 is forcibly opened, a gap is generated between the door 5 and the loading box, and the first magnetic sensor 61 and the second magnetic sensor 62 And the alarm lamp is operated by falling.