KR20140006517A - Door hinge for heavy equipment - Google Patents

Door hinge for heavy equipment Download PDF

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Publication number
KR20140006517A
KR20140006517A KR1020120073627A KR20120073627A KR20140006517A KR 20140006517 A KR20140006517 A KR 20140006517A KR 1020120073627 A KR1020120073627 A KR 1020120073627A KR 20120073627 A KR20120073627 A KR 20120073627A KR 20140006517 A KR20140006517 A KR 20140006517A
Authority
KR
South Korea
Prior art keywords
door
plate
stay
heavy equipment
unit
Prior art date
Application number
KR1020120073627A
Other languages
Korean (ko)
Inventor
임대원
김창식
Original Assignee
현대중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020120073627A priority Critical patent/KR20140006517A/en
Priority to BR112014010975A priority patent/BR112014010975A2/en
Priority to EP12847645.4A priority patent/EP2778295A4/en
Priority to US14/356,407 priority patent/US9169680B2/en
Priority to PCT/KR2012/009463 priority patent/WO2013070021A1/en
Priority to IN661MUN2014 priority patent/IN2014MN00661A/en
Priority to CN201280055277.3A priority patent/CN103917718B/en
Publication of KR20140006517A publication Critical patent/KR20140006517A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Hinges (AREA)

Abstract

The present invention relates to a door hinge for heavy equipment, which comprises: first and second plates provide at a hinge pivot and coupled to each other by a hinge to open or close a door; a stay unit provide at the first plate to be rotatable and supporting the second plate to prevent the door from being closed while the door is opened; and a fixing unit provided at the first plate and fixing the stay unit released off from supporting for the second plate. According to the present invention, it is possible to maintain the door open only with the stay unit unlike an existing design in which a separate bracket for mounting the door stay is installed at a door body, and, since the fixing unit is provided to fix the stay unit that is free from maintaining the door open, noises and vibrations generated from the stay unit during operation of the heavy equipment can be reduced.

Description

DOOR HINGE FOR HEAVY EQUIPMENT}

The present invention relates to a door hinge for heavy equipment, and more particularly, to overcome the point that a separate door stay mounting bracket is mounted on the door body in order to maintain an open state when the existing door is opened, the door without mounting the bracket It relates to a door hinge for heavy equipment to maintain the open state.

In general, the door hinge is an accessory used for a swing door that opens and closes while rotating about a certain axis, also called a hinge. Such door hinges are widely used in daily life such as offices and homes as well as industrial sites such as construction heavy equipment.

The door hinge in the construction heavy equipment rotatably supports the steel door, and functions to connect the door to the main body of the heavy equipment so as to be openable and closed. On the other hand, in order to maintain the iron door in the open state due to its own weight, a separate door stay device is required.

In the prior art, one end is fixed to the rotating door frame in order to install a separate door stay, and the other end must be connected to the stay by attaching a bracket to the excavator main body, but the bracket is mounted to the main body of the heavy equipment due to space problems. If this is not possible, it is difficult to mount a door stay device.

The present invention is to solve the above-mentioned problems, in order to maintain the opening state of the existing door, to overcome the point of mounting a separate door stay mounting bracket to the door body, the door open state without mounting the bracket The purpose is to provide an effect of maintaining.

The technical object of the present invention is not limited to the above-mentioned technical objects and other technical objects which are not mentioned can be clearly understood by those skilled in the art from the following description will be.

Door hinge for heavy equipment of the present invention for achieving the above object is provided on the hinge axis of the door for heavy equipment, the first plate and the second plate hinged to each other to open and close the door; A stay unit provided on the first plate to be rotatable and supporting the second plate when the door is opened to prevent the door from being closed; And a fixing unit provided on the first plate and fixing the stay unit in which support for the second plate is released. .

The stay unit may include a stay bar pivoting on a plane parallel to the first plate, a rotation shaft provided at one end of the stay bar and coupled to one side of the first plate, and provided on one surface of the stay bar. And a guide boss for guiding and limiting the rotational trajectory of the stay bar, and a fixing boss provided adjacent to the guide boss and fixed to the fixed unit by being detached from the fixing unit.

In addition, a bearing is interposed between the guide boss and the fixed boss and the stay bar.

In addition, the first plate is characterized in that the guide groove for guiding and limiting the trajectory of the guide boss is formed.

The fixing unit may include a support part protruding from one end portion of the first plate and bent toward one surface side of the first plate, and the snap fit detachment opening provided in the support part to snap fit with the fixing boss. do.

In addition, the snap-fit removable port is characterized in that formed of an elastic material.

In addition, the snap-fit attachment and exit is characterized in that the surface is coated with a synthetic resin.

According to the present invention, in order to maintain an open state when the door is opened, an additional door stay mounting bracket is overcome in mounting the door body, and the advantage of maintaining the open state of the door only by the stay unit without mounting the bracket There is this.

In addition, the fixed unit to which the stay unit in which the door is released is fixed is provided to reduce noise and vibration generated from the stay unit during operation of heavy equipment.

1 illustrates an example in which a door hinge for heavy equipment according to an embodiment of the present invention is applied to heavy equipment.
Figure 2 is a picture showing a door hinge for heavy equipment according to an embodiment of the present invention when the door is opened.
Figure 3 is a picture showing a door hinge for heavy equipment according to an embodiment of the present invention when the door is released.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. Definitions of these terms should be based on the content of this specification. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. Of course.

1 illustrates an example of applying a door hinge for heavy equipment to heavy equipment according to an embodiment of the present invention, Figures 2 and 3 are for heavy equipment according to an embodiment of the present invention when the door is opened or released Picture of door hinge. 1 to 3 will be described in detail with respect to the specific configuration, structure and operation of the door hinge for heavy equipment.

1 to 3, the heavy door hinge 1 is provided on the hinge shaft of the heavy equipment door 2 to open and close the door 2, and the first plate 100 and the second plate. It comprises a 200, a stay unit 300, a fixed unit 400, and the like.

The first plate 100 and the second plate 200 are provided on the hinge shaft of the door 2 for heavy equipment, and are hinged to each other to open and close the door 2. That is, the first plate 100 and the second plate 200 are connected around the hinge axis 500, and the connection method is not particularly limited to a method commonly used in the related art.

Here, the hinge shaft 500 is not particularly limited as a configuration commonly used in the related art, and both ends of the hinge shaft 500 may include the hinge shaft 500, the first plate 100, and the first portion. In order to protect the coupling of the two plates 200, it is preferable that an end protection cap 510 is provided.

In addition, any one of the first plate 100 and the second plate 200 is coupled to the door 2 side and the other is coupled to the main body of the heavy equipment, so that the door 2 is an opening of the heavy equipment. It is rotated to open and close the. On the other hand, the first plate 100 and the second plate 200 is also not particularly limited as a typical configuration used in the related art.

Meanwhile, referring to FIGS. 2 and 3, the first plate 100 on which the stay unit 300 to be described below is mounted is preferably formed larger than the width of the second plate. That is, according to an embodiment of the present invention, the stay unit 300 is mounted on one side of the first plate 100, and when the door 2 is closed, the first plate 100 and the second plate are closed. Since the 200 is folded, in order to prevent the stay unit 300 from interfering with the second plate 200, the first plate 100 has a width corresponding to that of the stay unit 300. It is preferable to form larger than the second plate 200.

The stay unit 300 is rotatably provided at one side of the first plate 100 to support the second plate 200 when the door 2 is opened to move the weight or heavy equipment of the door 2. Due to inertia, the door 2 is prevented from closing.

The stay unit 300 includes a stay bar 320, a rotation shaft 310, a guide boss 330, a fixed boss 340, and the like.

The stay bar 320 is formed in a rectangular plate shape, and rotates on a plane parallel to the first plate 100. That is, the stay bar 320 has one end coupled to one side of the first plate 100 by a pivot shaft 310 to be described later, and the other end thereof is in contact with and supported by the second plate 200. When the door 2 is opened, its closing is prevented.

The pivot shaft 310 is provided at one end of the stay bar 320 to be coupled to one side of the first plate 100 to allow the stay bar 320 to rotate.

The guide boss 330 is provided on one surface of the stay bar 320 to guide and limit the rotational trajectory of the stay bar 320. A guide groove 110 is formed in the first plate 100, and the guide boss 330 is inserted into the guide groove 110 to guide and limit the trajectory of the guide boss 330, thereby preventing the stay bar from being moved. The rotational trajectory of 320 is guided and limited.

The guide groove 110 is preferably formed in a curved arc shape when considering the rotational trajectory of the stay bar 320 rotating on the first plate 100, the arc length of the guide groove 110 is The other end of the stay bar 320 supports the second plate 200 when the door 2 is opened, and the fixing boss 340 to be described later when the door 2 is released is fixed unit 400. It is preferably formed to a length that can be fixed to).

The fixing boss 340 is provided adjacent to the guide boss 330 to be detached from the fixing unit 400 to be described later to fix the stay bar 320 to a predetermined position.

That is, referring to FIG. 3, when the stay bar 320 releases the support for the second plate 200 to open the door 2, the fixing boss 340 is fixed to the fixing unit 400. By fixing to), it is possible to prevent the noise and vibration caused by the rocking of the stay bar 320 during operation of heavy equipment, it is possible to improve the durability by preventing the rocking of the stay bar 320.

In addition, a bearing (not shown) is interposed between the guide boss 330 and the fixed boss 340 and the stay bar 320, so that the guide boss 330 is rotated when the stay bar 320 is rotated. It is preferable to make it easy to move along the guide groove 110, so that the fixing boss 340 can be easily inserted and fixed to the fixing unit 400.

On the other hand, the material of the stay unit 300 is preferably formed of a steel material in consideration of strength and durability, the first plate 100 and the second in the open state of the door (2) Any material can be used as long as the plate 200 is fixed and maintained without defects.

The fixing unit 400 is provided on the first plate 100 to fix the fixing boss 340 of the stay unit 300 from which the support for the second plate 200 is released.

The fixing unit 400 includes a support part 420 and a snap-fit release slot 410, and the support part 420 protrudes from one end of the first plate 100 so that It is bent to one surface side of the first plate 100. That is, the support part 420 protrudes in a '-' shape from one side of the first plate 100 to support the snap-fit detachable opening 410.

The snap fit attachment / detachment 410 is provided at the support part 420 to snap fit with the fixed boss 340. The snap-fit attachment and exit 410 is formed of an elastic material, a pair of engaging portions to fix the fixing boss 340 on both sides. That is, the pair of engaging portions of the snap-fit attachment / detachment 410 expands the inlet when the fixing boss 340 is inserted, and reduces the inlet again after the fixing boss 340 is inserted. Fixing boss 340 is fixed to the snap-fit release 410.

On the other hand, the surface of the snap-fit detachable opening 410 is preferably coated with a synthetic resin so that the fixing boss 340 can be easily inserted into the snap-fit detachable opening 410.

Hereinafter, a process of operating the door hinge for heavy equipment of the present invention when opening and closing the door 2 will be described. In opening / closing the door 2 of the heavy equipment, as shown in FIG. 1, the door hinge 1 pivots about its axis, so that the door 2 can open and close the opening of the excavator body. have.

Meanwhile, as shown in FIG. 2, when the door 2 opens the opening of the excavator body, the stay bar 320 of the stay unit 300 is lowered with respect to the pivot shaft 310. The second plate 200 may be supported while rotating to maintain the open state of the door 2. At this time, the guide boss 330 coupled to the stay unit 300 smoothly rotates the stay unit 300 while moving along the guide groove 1100 according to the rotation of the stay unit 30. Occurrence can be suppressed.

3, when the door 2 closes the opening of the excavator main body, the stay bar 320 of the stay unit 300 is centered on the pivot shaft 310. The open state of the door 2 can be released while rotating upward. In this case, the fixing boss 340 is inserted into and fixed to the fixing unit 400 to prevent noise and vibration due to the shaking of the stay bar 320.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

1: door hinge 2: door
100: first plate 110: guide groove
200: second plate 300: stay unit
310: pivot shaft 320: stay bar
330: guide boss 340: fixed boss
400: fixed unit 410: snap-fit attachment and exit
420: support portion 500: hinge axis
510: cap

Claims (7)

A first plate and a second plate provided on a hinge shaft of the door for heavy equipment and hinged to each other to open and close the door;
A stay unit provided on the first plate to be rotatable and supporting the second plate when the door is opened to prevent the door from being closed; And
A fixing unit provided on the first plate and fixing the stay unit in which support for the second plate is released; Door hinge for heavy equipment comprising a. The method of claim 1,
The stay unit,
Stay bar rotating on the surface parallel to the first plate,
A rotation shaft provided at one end of the stay bar and coupled to one side of the first plate;
A guide boss provided on one surface of the stay bar to guide and limit the rotational trajectory of the stay bar;
And a fixing boss provided adjacent to the guide boss and fixed to the predetermined position by attaching and detaching the fixing unit. 3. The method of claim 2,
Door hinge for heavy equipment, characterized in that the bearing is interposed between the guide boss and the fixed boss and the stay bar. 3. The method of claim 2,
Door hinge for heavy equipment, characterized in that the first plate is formed with a guide groove for guiding and limiting the trajectory of the guide boss. 3. The method of claim 2,
The fixed unit includes:
A support part protruding from one end of the first plate and bent toward one surface of the first plate;
The door hinge for heavy machinery including the snap-fit detachable opening provided in the support portion to be snap-fit with the fixing boss. The method of claim 5,
The snap-fit detachable door hinge for heavy equipment, characterized in that formed of an elastic material. The method of claim 5,
The snap-fit detachable door, the door hinge for heavy equipment, characterized in that the surface is coated with a synthetic resin.
KR1020120073627A 2011-11-10 2012-07-06 Door hinge for heavy equipment KR20140006517A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020120073627A KR20140006517A (en) 2012-07-06 2012-07-06 Door hinge for heavy equipment
BR112014010975A BR112014010975A2 (en) 2011-11-10 2012-11-09 heavy equipment door hinge
EP12847645.4A EP2778295A4 (en) 2011-11-10 2012-11-09 Door hinge for heavy equipment
US14/356,407 US9169680B2 (en) 2011-11-10 2012-11-09 Door hinge for heavy equipment
PCT/KR2012/009463 WO2013070021A1 (en) 2011-11-10 2012-11-09 Door hinge for heavy equipment
IN661MUN2014 IN2014MN00661A (en) 2011-11-10 2012-11-09
CN201280055277.3A CN103917718B (en) 2011-11-10 2012-11-09 For the door hinge of jumbo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120073627A KR20140006517A (en) 2012-07-06 2012-07-06 Door hinge for heavy equipment

Publications (1)

Publication Number Publication Date
KR20140006517A true KR20140006517A (en) 2014-01-16

Family

ID=50141423

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120073627A KR20140006517A (en) 2011-11-10 2012-07-06 Door hinge for heavy equipment

Country Status (1)

Country Link
KR (1) KR20140006517A (en)

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