KR20120053569A

KR20120053569A - Locking system of sliding plug door for bus

Info

Publication number: KR20120053569A
Application number: KR1020100114745A
Authority: KR
Inventors: 박승영
Original assignee: 현대자동차주식회사
Priority date: 2010-11-18
Filing date: 2010-11-18
Publication date: 2012-05-29

Abstract

PURPOSE: A locking device of a sliding plug door for vehicles is provided to improve the durability of a door and to prevent an inflow of dust and vibrations of the door effectively. CONSTITUTION: A locking device of a sliding plug door for vehicles comprises a cylinder(12), a latch(15), a striker, and a valve control unit. The cylinder is installed to be rotated with a pin structure of a bracket. The bracket is fixed to one door of the two doors facing each other when the doors are closed. The latch is placed below the cylinder and installed to be rotated by a pin(13) of the bracket. One side of the latch is connected to a cylinder rod(14). The striker is fixed to the other door and a pin portion is stuck inside a groove portion(22) of the latch. The valve control unit supplies air pressures to the cylinder.

Description

Locking system of sliding plug door for bus}

The present invention relates to a locking device for a sliding plug door for a vehicle, and more particularly, to a locking device that catches tremor or vibration during the sliding of a sliding plug door applied to a bus or the like.

In general, sliding plug doors applied to domestic and foreign railway vehicles and urban buses have the same appearance as the outer surface of the vehicle. Accordingly, the protrusion of the sliding plug door is minimized when opening, which is an advantageous system for expanding the effective space of the living space and the door inside the vehicle interior.

For this reason, development has been progressed for the application to buses, and some vehicles have already been applied to various vehicle manufacturers. However, many problems have appeared as the door systems developed for railway vehicles are applied as they are.

In particular, door tremors or vibrations during driving may be a problem caused by different driving conditions such as driving conditions between railroad cars and buses, for example, road surfaces, vehicle conditions, and driver dispositions.

For example, as shown in FIG. 1, there is a problem that the door pops out to the outside by centrifugal force when driving the vehicle since there is no separate fixing means at the center lower portion of the electric double door type door 100.

That is, as can be seen from the inside, there is a problem in that the bottom of the center of the door pops out due to the centrifugal force when turning, since there is no fixing device for preventing the flow of the bottom of the center when the door is closed.

In addition, as another example of the vehicle, as shown in Figure 2, there is also a problem that the noise and gap caused by the door shaking when driving the vehicle does not have a separate fixing device in the center lower portion of the electric double door type door (100). .

As a method for solving this problem, a locking device of the retainer type (FIG. 3) or a locking device of the pin insert type (FIG. 4) has been proposed, but there is still a weak surface of vibration and vibration of the lower part of the door.

For example, as shown in Figure 3, the retainer type locking device is equipped with a retainer 120 at the lower end of the door 100 and the body 110, respectively, by friction of both retainers 120 when the door is closed. The door 100 is fixed.

However, in this method, there is a high possibility of generating a friction sound (hit sound), running tremors when a gap between two retainers is generated, and not only the assembly work is difficult but also often closed by interference.

As shown in FIG. 4, the pin insert type locking device rotates when the door side roller 130 rolls the body side base 140 and reaches the rear side of the pin 150 when the door is closed. It is a method to be inserted and fixed to the lower groove 160 of the door side roller 130.

However, this method has a disadvantage in that the structure is complicated and the reliability of the function is inferior. As a result of applying a force after the door is closed, the door cannot be held without being fixed.

As such, the sliding plug door system currently applied to the bus is applied to the railway vehicle as it is, so it is not suitable for the bus driving conditions, causing problems of door shaking or flow and vibration while driving.

As a result, door shaking noises may occur, and external noise and dust may be introduced or rainwater may be introduced.

In addition, there is a problem that affects the durability of the door.

In addition, although the retainer type or the pin insert type is proposed as a measure to solve this problem, it can be seen that the technology is not suitable for domestic conditions as an incomplete fixation method, and thus the technology for the complete door fixing for domestic bus operating conditions. The need for development is required.

Accordingly, the present invention has been made in view of the above, and a combination of a latch operated by a double-acting cylinder, a striker forming a relative engagement of the latch, and a valve control system for providing air pressure is used to mechanically lower the door center. By implementing a new type of door locking system that can be locked by the door, it can effectively prevent the door shaking and vibration while driving, preventing the inflow of noise and dust, and contribute to the durability of the door. The purpose is to provide a locking device.

In order to achieve the above object, the locking device for a sliding plug door for a vehicle provided by the present invention includes a cylinder rotatably installed on a bracket fixed to one of two doors which are in contact with each other when closed, and a cylinder of the cylinder. Located on the lower side and rotatably installed on the pin on the bracket and one side is connected to the rod of the cylinder, the other side is fixed to the door, the striker pin can be caught on the latch and fixed to the other door, the air pressure to the cylinder Consists of a valve control unit that provides a, it is characterized in that it can effectively prevent the shaking or vibration of the lower door center while operating in conjunction with the opening and closing operation of the door.

Here, it is preferable that the valve control unit is controlled by a DCU that controls an electrical signal related to the door opening and closing signal, so that the valve control unit can be operated in conjunction with the opening and closing operation of the door, and in particular, the valve control unit is supplied to the door engine. It is more preferable to be able to pre-supply air to the cylinder side by time difference with the air which becomes.

The locking device of a sliding plug door for a vehicle provided by the present invention has the following advantages.

First, it is possible to prevent door vibration during driving and to perform the locking function perfectly by the complete mechanical fixing method using the mechanical locking device by the pneumatic rotary latch and the striker.

Second, the time difference line lock / release operation may be performed through the DCU control in conjunction with the door open / close signal.

Third, it is possible to open and close the door manually by emergency valve operation.

Fourth, the pneumatic rotary latch structure has no operation noise and excellent operation reliability.

Fifth, it is easy to control the electricity by applying DCU, and it is easy to diagnose and measure because it can output the fault in real time.

1 to 4 is a schematic view showing the problems of the conventional sliding plug door for a vehicle and the disadvantages of the existing locking device
5 is a perspective view showing a sliding plug door for a general vehicle
Figure 6 is a perspective view showing a latch in the locking device of a sliding plug door for a vehicle according to an embodiment of the present invention
Figure 7 is a perspective view showing a striker in the locking device of the sliding plug door for a vehicle according to an embodiment of the present invention
8 is a perspective view showing a valve control unit in a locking device of a sliding plug door for a vehicle according to an embodiment of the present invention;
Figure 9 is a perspective view showing an open state of the locking device of the sliding plug door for a vehicle according to an embodiment of the present invention
10 is a perspective view showing a closed state of the locking device of a sliding plug door for a vehicle according to an embodiment of the present invention.
FIG. 11 is a circuit diagram illustrating an input / output signal controlled by a DUC controlling a locking device of a sliding plug door for a vehicle according to an exemplary embodiment of the present disclosure.
12 is a diagram illustrating a warning signal controlled by a DUC for controlling a locking device of a sliding plug door for a vehicle according to an exemplary embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

5 is a perspective view illustrating a sliding plug door for a general vehicle.

As shown in FIG. 5, the sliding plug door is largely divided into a double door type and a short door type, and is divided into an electric type and a pneumatic type according to a driving method. The present invention provides an example in which a locking device is applied to a pneumatic type door.

The operation sequence of this pneumatic door is

① Nut movement by screw rotation when door engine starts

② Sliding shaft forward (56mm)

③ Rotate the coordination bar

④ lower link roller advance

It works as a process of.

That is, the doors 10a and 10b are opened and closed by driving the door engine 19 positioned at the upper side, and the roller 25 mounted on the coordination bar 24 exerts a guide function so as not to be separated from the door trajectory.

The upper door is connected to the engine and the arm to transmit the movement of the engine, the lower (sometimes even up) roller 25 is to prevent the flow after the door closed.

In other words,

At this time, the lower center of the door (short-formed corner portion) is vulnerable to driving vibrations and needs fixing, and the locking device of the present invention is installed therein.

6 to 8 are perspective views showing the latch, the striker and the valve control unit in the locking device of the sliding plug door for a vehicle according to an embodiment of the present invention.

As shown in FIGS. 6 to 8, the locking device includes a latch 15 and a striker 16 capable of locking and releasing each other, and a cylinder 12 and a valve control unit for operating the latch 15. 17) and the like.

The latch 15 has a shape having a groove portion 22 for hooking the pin portion 23 of the striker 16, and either one of the two doors 10a and 10b which are in contact with each other in the door closed state. It is installed on the (10a) side, for the installation of the latch 15, the door (10a) is provided with a bracket (reference numeral 11 of Figs. 9 and 10), so that the pin 13 of the bracket 11 is installed It is installed in a structure that can be rotated by inserting its lower end.

In this case, the bracket 11 may be installed in a vertical position in parallel with the boundary portion where the door 10a and the door 10b are in contact with each other.

The cylinder 12, which is a means for moving the latch 15, is positioned above the latch 15 and rotatably installed on one side of the bracket 11 by a rear end pin structure, and has a rod facing downward. 14) is also connected to the latch 15 side in a pin structure.

Accordingly, when the cylinder 12 is moved forward, the latch 15 can be rotated about the pin 13 to take the upright position to raise the groove 22 (locked state), and the cylinder ( When the back 12 is operated backward, the latch 15 can be rotated about the pin 13 to take an inclined posture with the groove 22 sideways (released state).

In addition, the cylinder 12 is provided with two ports 20b and 20d, and each of the ports 20b and 20d is connected to the ports 20a and 20c in the valve control unit 17, respectively. The air pressure can be supplied from the control unit 17 side to the cylinder 12 side.

In addition, a stopper 18 protrudes from the bracket 11 immediately behind the latch 15, and the stopper 18 is a hook formed at the upper rear portion, that is, the upper rear portion of the latch 15. It serves to restrain the jaw 21 from below, whereby the position of the latch 15 can be regulated by the stopper 18 when the door is closed.

The striker 16 is a latching member mating with the latch 15, and is fixed to the other door 10b in contact with one door 10a on which the latch 15 is installed, and the latch 15. The pin portion 23 extending toward the side is provided so that the pin portion 23 at this time can be caught while entering the groove portion 22 of the latch 15.

The valve control unit 17 is a means for providing air pressure to the cylinder 12, and can be installed in a frame structure on the upper part of the door in which the door engine 19 or the like is installed, and the two ports 20a and 20c. It is connected to the cylinder 12 side port (20b, 20d) through the through, it is possible to supply the air pressure for the cylinder forward and reverse operation.

At this time, the valve control unit 17 provides air pressure while operating in conjunction with the opening / closing operation of the door. For this purpose, the valve control unit 17 controls a DCU (FIG. 11 and reference numeral 26 of FIG. 12, it is possible to operate in conjunction with the opening and closing operation of the door.

For example, the valve control unit 17 controlled by the DOC 26 can pre-supply air to the cylinder 12 side with a time difference from the air supplied to the door engine 19.

As shown in FIGS. 11 and 12, the DUC 26 is a device for controlling all electrical signals related to a door, such as a door opening signal and a failure detection, and is generated when the vehicle is running or stopped. This function helps to amplify quick and easy action by outputting coded message in real time.

In FIG. 11, the input / output signal controlled by the DOC 26 is well described. In FIG. 12, the wiring diagram of the door opening and closing system controlled by the DOC 26 is well illustrated. The closed state is shown.

Therefore, looking at the operating state of the locking device of the sliding plug door for a vehicle configured as described above are as follows.

9 and 10 are perspective views illustrating an open state and a closed state of a locking device of a sliding plug door for a vehicle according to an exemplary embodiment of the present invention.

As shown in FIGS. 9 and 10, when the door open signal is generated, air is introduced into the open side port 20b of the cylinder 12, and the latch 15 is rotated to be separated from the striker 16. The door will open.

On the contrary, when the door closing signal is generated, air flows into the closing side port 20d side of the cylinder 12 and the opening side port 20b is exhausted, so that the latch 15 rotates in the locking direction and the door side striker 16. ), The bottom center of the door can be firmly fixed without shaking or vibration by the locking action between the latch and the striker.

At this time, the air inflow into the cylinder 12 is controlled by the DUC 26 to be operated before the main cylinder (not shown) on the door engine 19 side.

In addition, the locking device of the present invention can be opened by manual operation through an emergency valve (not shown) when the pneumatic and power are cut off.

As such, the locking device provided in the present invention can be applied to the door system of a small and medium-sized electric bus, and can effectively prevent shaking of the door while driving through a completely mechanical fixing method as a mechanical locking device by a pneumatic rotary latch and a striker. Can be.

10a, 10b: Door 11: Bracket
12: cylinder 13: pin
14: load 15: latch
16: Striker 17: Valve Control Unit
18: stopper 19: door engine
20a, 20b, 20c, 20d: port 21: locking jaw
22: groove portion 23: pin portion
24: Coordination Bar 25: Roller
26: DUC

Claims

A cylinder 12 rotatably mounted on the bracket 11 fixed to one of the doors 10a and 10b of the two doors 10a and 10b which are in contact with each other when closed;
A latch 15 positioned below the cylinder 12 and rotatably installed on the pin 13 on the bracket 11, the one side of which is connected to the rod 14 of the cylinder 12;
A striker 16 fixed to the other door 10b and capable of catching a pin portion for catching the latch 15;
A valve control unit (17) for providing air pressure to the cylinder (12);
Includes, the locking device of the sliding plug door for a vehicle, characterized in that to operate in conjunction with the opening and closing operation of the door to prevent shaking or vibration of the lower door center.

The sliding plug of claim 1, further comprising a stopper 18 installed on the bracket 11 to regulate the position of the latch 15 by walking the upper rear portion of the latch 15 when the door is closed. Lock on the door.

The sliding plug door for a vehicle according to claim 1, wherein the valve control unit 17 is controlled by a DCU for controlling an electrical signal related to a door opening / closing signal, so that the valve control unit 17 can be linked with the opening / closing operation of the door. Lock.

4. The valve control unit (17) according to claim 3, characterized in that the valve control unit (17) is controlled by the DUC to supply air to the cylinder (12) side at a time difference from the air supplied to the door engine (19). Locking device for a sliding plug door for a vehicle.