KR20010064474A - Folding door for bus - Google Patents

Abstract

PURPOSE: A bus folding door is provided to secure a space and improve appearance by placing a driving unit operating a folding door except a passenger's space without exposing. CONSTITUTION: A folding door of a bus is composed of a bracket(2) fixed in an upper face of a door installation portion of a body with an operating unit(1); a vertical rotating shaft(5) combined with an end of the bracket by a first hinge(1) to rotate and with a lower face of the door installation portion by a second hinge(4); first and second arms(6,7) fixed in both ends of the rotating shaft; a first door(50) combined with a second door(51) by a hinge and connected to first and second arms to turn. The operating unit is placed in the upper face of the door without occupying a passenger's space. The bus folding door improves appearance by containing the operating unit with a cover(8).

Description

Folding door for bus {FOLDING DOOR FOR BUS}

The present invention relates to a folding door, and more particularly, it is possible to solve the inconvenience of the passenger and increase the merchandise of the folding door by not placing a driving device for driving the folding door installed in the bus in the passenger's living space. A folding door for a bus.

In general, at least one door is installed on the bus for getting on and off the bus, and the door uses a so-called folding door which is normally opened and closed while being folded.

As shown in FIGS. 5 and 6, the hinge assembly 53 is coupled to the hinge 52 so that the first and second doors 50 and 51 can be folded, and the one side door is rotatably coupled to the vehicle body. And a bracket 54 fixed to the middle portion of the door 53 and a cylinder rod 55 connected to the bracket 54 by a first hinge 56 so as to be rotatable and rotated to the vehicle body B. FIG. It is comprised by the cylinder 58 provided by the 2nd hinge 57 possibly.

Here, the cylinder 58 is installed inside the center fascia so that only the rod 55 is exposed to the outside, and the upper ends of the doors 50 and 51 are guide rollers 59 and roller guides ( 60).

In particular, as shown in FIG. 5, the folding door installed at the center portion of the vehicle is provided on a floor (not shown) of the vehicle as shown in FIG. 7, and a separate box-shaped housing 61 is installed. The cylinder 58 is accommodated in the housing 61.

Referring to the opening and closing state of the folding door as described above, when the cylinder 58 is operated, the cylinder rod 55 pulls the first and second doors 50 and 51, and the first and second doors ( 50 and 51 are folded about the hinge 52 and rotated about the hinge assembly 53 at the same time.

At this time, since the cylinder 58 is supported by the first and second hinges 56 and 59, the position change according to the rotation of the door is possible, and the guide roller 59 and the roller guide 60 are provided. This makes the opening and closing state of the door more smooth.

However, as described above, the cylinder installed to open and close the folding door and the bracket connected thereto are exposed to the interior, resulting in poor interior appearance, and injuries caused by passengers coming into contact with or touching the exposed cylinder rod. There is a problem.

In addition, in the case of the folding door installed in the middle part of the bus, since a separate housing for accommodating the cylinder occupies the occupant's living space, it becomes difficult to arrange seats and the passenger's living space is reduced. have.

Accordingly, an object of the present invention is to solve the above problems, by preventing the driving device for operating the folding door is not located in the passenger's living space and not exposed to the outside, thereby reducing the living space reduced and poor appearance The present invention provides a folding door for a bus.

In order to achieve the above object, the present invention is a bus folding door configured to be opened and closed while the first and second doors are combined with a hinge,

It is fixed to the upper surface of the first and second door installation parts, and the upper end is coupled to the first hinge and the other end is coupled to the bottom of the door installation portion and the other end is coupled to the bracket with the operating unit and the one end of the bracket is rotated It is characterized in that it comprises a first and second arms which are installed upright and the rotational shaft, and fixed in the orthogonal state at both ends of the rotary shaft and the middle portion of one of the doors of the first and second doors are rotatably connected.

1 is a schematic front view showing a folding door for a bus according to the present invention;

2 is a plan view of a state in which the operation unit is removed from FIG.

3 is a right side view of FIG. 1;

4 is a plan view showing the operation unit in FIG.

5 is a perspective view illustrating an installation state of a folding door installed in a general bus;

6 is a schematic plan view of the driving unit in FIG. 5;

Fig. 7 is a schematic plan view showing a folding door installed at a central portion of a general bus and its driving portion.

＊ Explanation of symbols on main parts of drawing

1: moving part 2: bracket

3: first hinge 4: second hinge

5: axis of rotation 6: first arm

7: second arm 8: cover

9: operating arm 10: third hinge

11: fourth hinge 12: cylinder

13: magnet valve 14: anti shock valve

15: micro switch 50: first door

51: second door

1, 2 and 3 are a schematic front view and a side view showing a state of a folding door for a bus according to the present invention with the operation part removed in FIG. 1, and is fixed and installed on the upper surface of the door installation portion of the body Bracket 2 provided with portion 1 and the first hinge 3 is coupled to one end of the bracket 2 so as to be rotated, and the other end is coupled to the bottom of the door installation portion by a second hinge 4 and installed upright. Rotating between the rotary shaft 5, the first and second arms 6 and 7 fixed in the orthogonal state to both ends of the rotary shaft 5, and the first and second arms 6 and 7 so as to rotate in the middle. Consisting of the part is composed of a first door 50 coupled to the second door 51 by a hinge 52.

That is, since the operation part 1 is located on the upper surface of the door and is disposed at a position not included in the passenger's living space, the operating part 1 does not occupy the passenger's living space.

In addition, since the above position is a place that is not easily seen by the passengers, when the operating unit 1 is stored in the cover 8 shown in Fig. 3, the appearance does not become poor.

In particular, the first and second hinges (3, 4) is made of a ball joint to minimize the friction force during rotation.

As shown in FIG. 4, the operation part 1 is fixed to the upper surface of the rotating shaft 5 and positioned on the upper surface of the bracket 2, and on the upper surface of the bracket 2. It is composed of a cylinder 12 coupled to the third hinge 10 and coupled to the operation arm 9 by a fourth hinge 11.

In addition, the operation part 1 is provided with a magnet valve 13 for supplying / blocking air pressure to the cylinder 12 and an anti-check valve 14 for reducing the impact value when the door is closed. Guide rollers 59 are provided in the two doors 51.

The angle α at which the operation arm 9 is rotated by the cylinder 12 has the same angle as that at which the first and second doors 50 and 51 are opened and closed. The angle of the operating arm 9 and the first and second arms 6 and 7 must be adjusted accurately.

Of course, the on / off of the cylinder 12 is made by the micro switch 15 which is usually installed at the time of opening and closing the door.

Referring to the operation and effect of the present invention as described above, in order for the operator to install the door on the bus, the bracket (2) is fixed to the upper surface of the door installation portion of the body, and then between the bracket (2) and the body In addition to arranging the rotary shaft (5) it is coupled to both ends of the first and second hinges (3, 4).

When the rotary shaft 5 is coupled to the first and second hinges 3 and 4, the intermediate portion of the first door 50 is rotated at the end of the first and second arms 6 and 7 of the rotary shaft 5. In addition to the coupling so that the second door 51 is coupled to the first door 50 and the hinge 52 and the like.

In a state in which the first and second doors 50 and 51 are coupled, when one side is supported by the above-described rotary shaft 5 and the first and second arms 6 and 7, the first and second doors 50, 51 is in a state capable of opening and closing, and in this state, the operation arm 9 is coupled to the end of the rotation shaft 5 protruding to the upper surface of the bracket 2.

When the operating arm 9 is coupled, the angle α is precisely adjusted and then fixed, and the rod of the cylinder 12 is coupled to the operating arm 9 by the fourth hinge 11.

When the cylinder 12 is coupled to the operation arm 9 by the fourth hinge 11, the cylinder 12 is fixed to the bracket 2 by the third hinge 10, and the above-described cylinder 12 The magnet valve 13, etc. necessary to drive the upper surface of the bracket 2 is fixed.

When the operating unit 1 (various parts necessary for driving the cylinder) is installed on the upper surface of the bracket 2, the outside of the bracket 2 is coupled to the cover 8 so that the operating unit 1 is externally mounted. In addition to being invisible, the cover 8 also looks like an interior exterior component.

As described above, when the operating unit 1 is installed, the operating unit 1 is installed in the upper part of the passengers, and does not occupy the passenger's living space.

In addition, since it is not necessary to install a separate part in the middle portion of the door as in the conventional bracket 54 described above, the external view through the door is not obscured.

As described above, when driving the completed folding door, the cylinder 12 is in a state in which the door is closed in the state indicated by the solid line in Fig. 2, and the cylinder 12 moves the operation arm 9 to the dotted line position. When pushed, the rotating shaft 5 and the first and second arms 6 and 7 connected thereto open the first and second doors 50 and 51 while rotating clockwise.

Of course, when the first and second doors 50 and 51 are opened and closed, the guide roller 59 moves on the roller guide 60 shown in FIG. 5 to open and close the first and second doors 50 and 51. Make it smooth.

Here, the first and second arms 6 and 7 are connected to the middle portion of the first door 50, and the first and second arms 6 and 7 are connected to the first and second doors 50 and 51 at the folded positions of the first and second doors 50 and 51. This is because less force is required to open and close the door when the connecting portions of the two arms 6 and 7 are brought closer.

As described above, the present invention is advantageous in that an indoor space that can be used by passengers is increased by arranging the operation unit for operating the folding door on the upper surface of the door so as not to be located in the passenger's living space.

In addition, the operating part such as a cylinder for operating the folding door is not exposed to the outside, there is an advantage that the interior appearance is improved.

Claims (4)

In the folding door for the bus configured to open and close while folding the first and second doors, It is fixed to the upper surface of the first and second door installation parts, and the upper end is coupled to the first hinge and the other end is coupled to the bottom of the door installation portion and the other end is coupled to the bracket with the operating unit and the one end of the bracket is rotated A folding door for a bus, characterized in that it comprises an upright rotating shaft and first and second arms fixed at right angles to both ends of the rotating shaft, and in which a middle portion of one of the first and second doors is rotatably connected. . The method of claim 1, The first and second hinges are folding doors for a bus, characterized in that the ball joint is configured to minimize the frictional force during rotation. The method according to claim 1 or 2, The operation part is fixed to the upper surface of the rotating shaft and the operating arm located on the upper surface of the bracket, and coupled to the third hinge on the upper surface of the bracket and coupled to the fourth arm to the operating arm when the first, Folding door for bus, characterized in that consisting of a cylinder for driving the two doors open and close. The method of claim 3, The folding door for the bus, characterized in that it comprises a cover coupled to form the outer surface of the bracket so that the cylinder or the like is not visible from the outside.