KR200451138Y1 - Door rock having link structure - Google Patents

Abstract

The present invention relates to a door opening and closing device having a link structure, and in particular, by connecting the indoor and outdoor switching devices in a link structure and interlocking, the height of the opening and closing devices of the indoor and outdoor sides, respectively, in a convenient position to use. It is to provide a door opening and closing device for positioning.

The door opening and closing device according to the present invention for solving the above problems is a door opening and closing device for interlocking by connecting the first opening and closing device and the second opening and closing device installed at different heights to the door in a link structure, the link structure, the first A first link member having one end fixed to a handle rotating shaft of the first opening and closing device, a second link member having one end fixed to the handle rotating shaft of the second opening and closing device, and opposite ends of each of the first and second link members And a third link member which is hingedly coupled, and when one of the first and second opening and closing devices is driven to rotate, the rotational force is transmitted to the other opening and closing device as it is through the link structure, and the remaining opening and closing device is It is characterized in that the interlock.

Door opening and closing device, link structure

Description

Door opening and closing device with link structure {DOOR ROCK HAVING LINK STRUCTURE}

The present invention relates to a door opening and closing device having a link structure, and more particularly, to a door opening and closing device for interlocking by connecting a plurality of opening and closing devices formed at different heights in the indoor and outdoor sides in a link structure.

Conventionally, the opening and closing apparatus of the railway vehicle cab side entrance door is formed at the same height, for example, the middle height of the door at the indoor side and the outdoor side.

However, in the case of railroad cars and the like, considering the heights of the wheels and the underframe, there is a remarkable difference in the height of approaching the switchgear from the cab interior side and the outside side, and the accessibility of the switchgear from the outdoor side is too high. Worsens.

In order to solve this problem, it may be considered to install the switchgear at the lower side of the entrance door, but in this case, the height of the switchgear access from the indoor side is too low, and the operability of the switchgear is deteriorated.

As described above, depending on the switchgear installation position, the switchgear access height becomes too low on the indoor side or too high on the outdoor side, making it difficult to satisfy the operability on both sides.

Accordingly, the present invention was devised to solve the above-described problems of the prior art, and an object of the present invention is to connect the indoor and outdoor side open / closed devices by linkage, thereby interlocking the indoor and outdoor open / close devices. It is to provide a door opening and closing device so that each can be positioned at a convenient location for the height.

In order to achieve the above object, the door opening and closing device according to the present invention is a door opening and closing device for connecting and interlocking a first opening and closing device and a second opening and closing device installed at different heights in the door link, the link structure, A first link member having one end fixed to a handle rotation shaft of the first opening and closing device, a second link member having one end fixed to the handle rotation shaft of the second opening and closing device, and a second end of each of the first and second link members. A third link member hingedly coupled at both ends, and when one of the first and second opening and closing devices is rotationally driven, the rotational force is transmitted to the other opening and closing device as it is through the link structure, and the remaining opening and closing is performed. The device is characterized in that the interlock.

As the first and second opening and closing devices, a conventional opening and closing device that can open and close the door may be used, and the door outdoor side opening and closing device may be installed at a lower position than the door interior side opening and closing device.

Handles of the first and second opening and closing device may be configured as a lever formed in parallel with the first and second link members.

First and second hinge coupling parts having through holes are formed at the other ends of the first link member and the second link member, respectively, and the third and fourth hinge coupling parts having through holes at both ends of the third link member are formed. And are hinged to the first and second hinge coupling portions by hinge shafts and fixing pins, respectively.

According to the door opening and closing device having a link structure of the present invention, it is possible to form a plurality of opening and closing devices connected and linked to the link device at different heights on the indoor side and the outdoor side, thereby providing accessibility to the indoor and outdoor sides of the door opening and closing device operator. This has the effect of being improved.

The singular forms used to describe the embodiments of the present invention are intended to include the plural forms as well, unless the phrases clearly indicate the opposite. And “comprises” means specific features, regions, integers, steps, actions, elements and / or components, and the presence or addition of other specific features, regions, integers, steps, actions, elements, components and / or groups. It is not excluded.

Hereinafter, a door opening and closing device having a link structure according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to the following embodiments. Therefore, it will be apparent to those skilled in the art that the present invention may be variously changed without departing from the technical spirit of the present invention.

Figure 1a is a front view of the interior side of the door with the opening and closing device according to the present invention, Figure 1b is a cross-sectional view taken along line II of Figure 1a, Figure 2a is an outdoor side front view of the door, Figure 2b is a II-II of Figure 2a 3 is a cross-sectional view taken along the line III-III of FIG. 2A, FIG. 4 is a perspective view of the door opening and closing device according to the present invention, and FIG. 5 is an operation state diagram of the door opening and closing device shown in FIG. 4. .

1A to 5, the door opening and closing device 10 according to the present invention includes a first opening and closing device 100 and a second opening and closing device 200 installed at different heights in the door 1, and the It includes a large link structure 300 connected to interlock the first opening and closing device 100 and the second opening and closing device 200.

The first opening and closing device 100 is used to open and close the door 1 in the indoor side, the latch bundle 110 is formed with a latch 111, the lever 120 which is a handle, the rotating shaft of the lever 120 It consists of 121.

The second opening and closing device 200 is used to open and close the door 1 in the outdoor side, and consists of a lever 210 which is a handle and a rotating shaft 211 of the lever 210. Unlike the first opening and closing device 100, the latch opening is not installed in the second opening and closing device 200.

The link structure 300 includes a first link member 310 having one end fixed to the lever rotation shaft 121 of the first opening and closing device 100, and a lever rotation shaft 211 of the second opening and closing device 200. A second link member 320 having one end fixed thereto and a third link member 330 hingedly coupled to the other ends of the first and second link members 310 and 320, respectively.

A first hinge coupler 311 having a through hole is formed at the other end of the first link member 310, and a second hinge coupler 321 having a through hole at the other end of the second link member 320. Is formed.

The third link member 330 has third and fourth hinge coupling parts 331 and 332 having through holes at both ends thereof, respectively.

The third hinge coupler 331 is rotatably coupled by a hinge shaft 341 and a fixing pin 342 in a state of being fitted to the first hinge coupler 311.

The fourth hinge coupler 332 is rotatably coupled by the hinge shaft 351 and the fixing pin 352 in a state of being fitted to the second hinge coupler 321.

Hereinafter, the operation of the door opening and closing device 10 having a link structure according to the present invention having the above-described configuration will be described.

As shown in FIG. 5, when the outdoor lever 210 is rotated in the “A” direction, the second link member 320 is rotated in association with the lever 210 about the rotation shaft 211, thereby. As a result, the third link member 330 is moved downward ("B" direction).

As the third link member 330 moves downward, the first link member 310 and the lever 120 are rotated in association with the rotation shaft 121 ("C" direction), and the latch 111 ( As shown in FIG. 4, the door 1 can be opened by entering the latch bundle 110.

Figure 1a is a front view of the interior side of the door installed with the opening and closing device according to the present invention.

1B is a cross-sectional view taken along the line I-I of FIG. 1A;

2A is an outdoor front view of the entrance door.

FIG. 2B is a cross sectional view along line II-II of FIG. 2A;

3 is a cross-sectional view taken along the line III-III of FIG. 2A;

Figure 4 is a perspective view of the door opening and closing apparatus according to the present invention.

5 is an operation state diagram of the door opening and closing device shown in FIG.

[Description of Reference Numerals]

1: Door 10: Door opening and closing device

100: 1st switchgear 110: latch bundle

111: latch 120: lever

121: rotating shaft 200: second opening and closing device

210: lever 211: rotation axis

300: link structure 310: first link member

320: level 2 link member 330: third link member

311: first hinge coupling portion 321: second hinge coupling portion

331: third hinge coupling portion 341: fourth hinge coupling portion

341: hinge axis 342: fixed pin

351: hinge shaft 352: fixed pin

Claims (3)

A door opening and closing device for linking and interlocking a first switchgear and a second switchgear provided at different heights in a door in a link structure, wherein the link structure includes: A first link member having one end fixed to a handle rotating shaft of the first opening and closing device; A second link member having one end fixed to a handle rotating shaft of the second opening and closing device; A third link member having both ends hingedly coupled to respective other ends of the first and second link members, When one of the first or second opening and closing device is driven to rotate, the rotational force is transmitted to the other opening and closing device as it is through the link structure, and the remaining opening and closing device is interlocked. Switchgear. The method of claim 1, At the other ends of the first link member and the second link member, first and second hinge coupling parts having through holes are formed, respectively. The third link member may have third and fourth hinge coupling parts having through holes at both ends thereof, and are hinged to the first and second hinge coupling parts by hinge shafts and fixing pins, respectively. , Door opening and closing device having a link structure. The method according to claim 1 or 2, A door opening and closing device having a link structure, characterized in that the handle of the first and second opening and closing device is made of a lever formed in parallel with the first and second link members.

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