KR200371342Y1 - Locking device for a front-window of a cap of heavy equipment - Google Patents

Abstract

The present invention enables the opening and closing of the front glass window of heavy equipment by simple operation, and it is possible to fix the front glass window not only in the front closed state but also in the open and open state with only one device. The present invention relates to a locking device for windshields of heavy equipment that can be fixed firmly so as not to be opened and closed arbitrarily.

Locking device for the windshield of the heavy equipment according to the present invention, the body is fixed to both sides of the front windshield is opened and closed while moving up and down along the guide installed on the cab of the heavy equipment; First and second fixed shafts whose ends are fixed to the body, respectively; It is coaled so as to be rotated in the unlocking direction on the first fixed shaft, and on one side, the first and second strikers are selectively contacted with the first and second strikers installed on the cab of the heavy equipment during the opening and closing of the windshield. A latch member having first and second locking grooves selectively engaged with the two strikers, the latching member being formed at the other side thereof; It is installed in the second fixed shaft to be rotated in the locking direction, and one side is engaged with the latching jaw of the latch member when the latch member is rotated in the locking direction, and automatically sets and maintains the locking state, and the other side is an external force for unlocking. Protruding to the outside of the body so that it can be applied, when forced to rotate in the unlocking direction by an external force, one side is separated from the locking jaw while the latch member to rotate in the unlocking direction; includes.

Description

LOCKING DEVICE FOR A FRONT-WINDOW OF A CAP OF HEAVY EQUIPMENT}

The present invention relates to a locking device for the front windshield of heavy equipment, and more particularly, it is possible to open and close the front windshield of heavy equipment with a simple operation, and can be fixed at the time of opening as well as closing the windshield with only one device. The present invention relates to a locking device for a front windshield of a heavy equipment that can be firmly fixed so that the windshield cannot be opened or closed arbitrarily by self-vibration and external shock of the heavy equipment.

Generally, on the cab of heavy equipment such as excavators, loaders and forklifts, the windshield is installed to be opened and closed along a guide, and the windshield is lowered along the guide to fix the opening and closing state of the cab. A locking device for fixing the front side to be closed and another locking device for fixing in the open state for lifting the windshield upwards along the guide to open the front side of the cab are respectively installed.

However, the locking device for the windshield of the heavy equipment of the above-described structure has a problem that the cost increases as the locking device for fixing the windshield in the closed state and the locking device for fixing the windshield in the open state are separately installed. In addition, there is a problem that the failure rate is increased because the structure itself is relatively complex.

Therefore, the object of the present invention is to enable the opening and closing of the front glass window of heavy equipment by simple operation, and to fix the front glass window as well as the front closed state as well as the open and closed state with only one device, and to the self-vibration and external shock of heavy equipment It is to provide a locking device for the windshield of the heavy equipment that can be fixed firmly so that the windshield is not opened and closed arbitrarily.

It is also an object of the present invention to provide a locking device for the windshield of heavy equipment, which is formed in a simple structure to reduce the failure rate.

1 is a perspective view of the locking device for the windshield of the heavy equipment according to the present invention.

Figure 2 is an exploded assembly view of the locking device for the windshield of the heavy equipment according to the present invention.

3a and 3b is a locking and unlocking operation of the locking device for the windshield of the heavy equipment according to the present invention in the closed state of the windshield.

Figures 4a and 4b is a locking release of the locking device for the windshield of the heavy equipment according to the present invention in the open state of the windshield.

Explanation of symbols on the main parts of the drawings

1: Locking device for windshield of heavy equipment

10 body 11: first plate

15: second plate 20: first fixed shaft

30: second fixed shaft 40: latch member

41: first locking groove 43: second locking groove

45: engaging jaw 50: the first coil spring

60: lever 70: second coil spring

80: protective cover 100: cab

101: first striker 103: second striker

110: front glass window

The objects of the present invention described above,

Body fixed to both sides of the front windshield is opened and closed while moving up and down along the guide installed on the cab of the heavy equipment;

First and second fixed shafts whose ends are fixed to the body, respectively;

It is coaled so as to be rotated in the unlocking direction on the first fixed shaft, and on one side, the first and second strikers are selectively contacted with the first and second strikers installed on the cab of the heavy equipment during the opening and closing of the windshield. A latch member having first and second locking grooves selectively engaged with the two strikers, the latching member being formed at the other side thereof; And

It is installed in the second fixed shaft to be rotated in the locking direction, and one side is engaged with the latching jaw of the latch member when the latch member is rotated in the locking direction, and automatically sets and maintains the locking state, and the other side is an external force for unlocking. Protruding to the outside of the body so that it can be applied, when forced to rotate in the unlocking direction by an external force, one side is separated from the locking jaw and the latch member to rotate in the unlocking direction; By providing a locking device.

According to a preferred feature of the present invention, the above-described body,

A first plate having one end of each of the first and second fixed shafts fixed thereto; And

One side is in contact with the first plate and the other side is spaced apart from the first plate and the other ends of the first and second fixed shafts are respectively fixed, and a second plate forming a stopper for rotation in the unlocking direction of the latch member. .

According to a more preferred feature of the present invention, it further comprises a protective cover fitted on the first plate and the above-described second plate.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the technical spirit and scope of the present invention are not limited thereto.

Figure 1 shows a perspective view of the windshield locking device (1) of the heavy equipment according to the present invention, Figure 2 shows an exploded view of the locking device (1) for the windshield of heavy equipment according to the present invention.

As shown in Figure 1 and 2, the locking device for the front windshield of the heavy equipment according to the present invention, the front windshield (not shown) of opening and closing while moving up and down along a guide installed on the cab of the heavy equipment Body 10 fixed to both sides, the first fixed shaft 20, both ends are fixed to the body 10, respectively, and both ends are fixed to the body 10, respectively, and extend in parallel to the first fixed shaft 20 The second fixed shaft 30 and the first coil spring 50 is installed so as to rotate in the unlocking direction to the first fixed shaft 20, one side is installed on the cab of the heavy equipment when opening and closing the windshield As the first and second strikers are selectively contacted, the first and second locking grooves 41 and 43 are formed to be selectively engaged with the first and second strikers, respectively, when the first and second strikers are rotated in the locking direction. A latch member 40 having a 45 formed thereon, and a second coil soup. 70 is pivoted so as to rotate in the locking direction on the second fixed shaft 30, and one side of the latch member 40 is selectively engaged with the first and second locking grooves. When rotated in the locking direction is engaged with the latching jaw 45 of the latch member 40 to automatically set and maintain the locking state, the other side protrudes to the outside of the body 10 so that an external force for unlocking can be applied The lever 60 includes a lever 60 which allows the latch member 40 to be rotated in the unlocking direction while one side is separated from the latching jaw 45 of the latch member 40 when the force is rotated in the unlocking direction by an external force. .

Here, the body 10 is a frame in which other components including the latch member 40 and the lever 60 are installed, and moves up and down along a guide, and is disposed on both upper sides of the front window to open and close the front side of the cab of the heavy equipment. Each is fixed.

The body 10 described above includes a first plate 11 to which end portions of the first and second fixed shafts 20 and 30 are respectively fixed, and one side of the body 10 is in contact with the first plate 11, and the other side of the body 10 includes a first plate ( 11 and the other ends of the first and second fixed shafts 20 and 30 are fixed, respectively, and the connecting portion integrally forming one side and the other side is a stopper for rotation in the unlocking direction of the latch member 40 ( It is preferred to include a second plate 15 forming 17). The first plate 11 described above is integrally formed with a fixture 13 that penetrates the second plate 15 and fixes the cover 80 to be described later.

The first fixed shaft 20 fixed at both ends to the first and second plates 11 and 15 forming the body 10 described above forms a rotation shaft of the latch member 40 to be described later. The second fixing shaft 30, which is fixed at both ends to the first and second plates 11 and 13 forming the body 10, respectively, by predetermined fasteners 21 and 31, has a rotation shaft of the lever 60, which will be described later. In forming, the distance between both shafts 20 and 30 is appropriately selected to enable locking and unlocking action by engagement of the latch member 40 and the lever 60.

The latch member 40 is rotatably fixed to the first fixed shaft 20 at a predetermined angle, and the latch member 40 is locked to the first fixed shaft 20 by the first coil spring 50. It is coaled so as to rotate in the release direction, and one side of the latch member 40 is engaged with the first striker when rotated in the locking direction according to contact with the first striker installed on the cab of the heavy equipment when the windshield is closed. When the first locking groove 41 is set and the second striker installed on the cab of the heavy equipment is opened when the windshield is opened, the second locking groove is engaged with the second striker to set the locking state when it is rotated in the locking direction. A groove 43 is formed, and the other side of the latch member 40 engages one side of the lever 60 when the locking state is set by engaging the striker with the locking grooves 41 and 43 so as to maintain the locked state. 45 is formed.

When the latch member 40 is rotated in the locking direction, the locking jaw 45 is no longer rotated as it engages with one side of the lever 60, and the body 10 is configured when the lock member is rotated in the unlocking direction. Since it is engaged with the stopper 17 of the second plate 15 and can no longer be rotated, it can be rotated only within a predetermined angle range on the first fixed shaft 20.

As described above, the first coil spring 50 is fixed to the first plate 11 and the other end of the first coil spring 50 is fixed to the latch member 40 in the state of being fitted to the first fixed shaft 20. Is fixed to be installed so as to rotate in the unlocking direction with respect to the first fixed shaft (20).

The lever 60 is rotatably fixed to the second fixed shaft 30 at a predetermined angle so that the lever 60 is interlocked with the latch member 40. The lever 60 is second fixed by the second coil spring 70. The shaft 30 is pivoted so as to rotate in the locking direction, and one side of the lever 60 is rotated in the locking direction when the latch member 40 is rotated in the locking direction by contact with the first and second strikers. Engaged with the locking jaw 45 is automatically set and maintained the locking state, the other side protrudes to the outside of the body 10 so that an external force for rotation in the unlocking direction can be applied.

Thus, the first striker is engaged with the first locking groove 41 of the latch member 40 so that the windshield is kept closed, or the second striker is engaged with the second locking groove 43 of the latch member 40. In the locked state in which the front window is kept in the open state, when the external force is applied to the other side of the lever 60 to force the lever 60 to rotate in the unlocking direction, one side of the lever 60 is the latch member 40. The latch member 40 is rotated in the unlocking direction by the elasticity of the second coil spring 70 at the same time as the latching jaw 45 of the first and second locking springs, so that the first and second strikers are first and second locking grooves. The locking state is released from (41, 43).

The lever 60 is interlocked with the latch member 40 which is rotated only in a predetermined angle range, and may be rotated only in a predetermined angle range corresponding to the latch member 40.

As the second coil spring 70 is fitted to the second fixed shaft 30, one end of the second coil spring 70 is fixed to the first plate 11, and the other end of the second coil spring 70 is fixed to the lever 60. 2 Fix the coal to rotate in the locking direction with respect to the fixed shaft (30).

Locking device (1) for the windshield of the heavy equipment according to the present invention preferably further comprises a protective cover 80 that is fitted to the first plate 11 and the second plate 15 described above, this protection The cover 80 not only protects the locking device 1 for the windshield of the heavy machinery, but also serves to enhance the appearance. The protective cover 80 is formed with a through hole 81 through which the fixture 13 penetrates, and a groove 83 for enabling the lever 60 to protrude and for guiding rotation.

3a and 3b show the locking and unlocking operation of the locking device 1 for the windshield of the heavy equipment according to the present invention in the closed state of the windshield 110.

As shown in FIG. 3A, the windshield 110 is lowered on a guide (not shown) formed on the cab 100 of the heavy equipment to close the front side of the cab 100. When an external force greater than the elastic force of the first coil spring 50 is pushed to the outside, the latch member 40 is attached to the first striker 101 provided on the cab 100 of the heavy equipment, as shown in FIG. 3B. The latch member 40 is rotated in the locking direction while the first locking groove 41 in contact with the first locking groove 41 is contacted, and the locking state is automatically set while the first striker 101 is surrounded by the first locking groove 41.

When the latch member 40 is forcibly rotated in the locking direction, the locking state described above is engaged as one side of the lever 60 is engaged into the latching jaw 45 of the latch member 40 by the second coil spring 70. It is held firmly, and this locking state is not easily released by self-vibration or external shock of heavy equipment due to the elasticity of the second coil spring 70, so that the windshield 110 can be kept closed.

In this state, when an external force greater than the elastic force of the second coil spring 70 is applied to the other side of the lever 60 and forced to rotate in the unlocking direction, the other side of the lever 60 is caught by the latch member 40. 45, the latch member 40 is rotated in the unlocking direction by the elasticity of the first coil spring 50, so that the first locking groove 41 is separated from the first striker 101. As shown in FIG. The state is released, and the windshield 110 is returned to the guide by its own weight.

4a and 4b show a locking release of the locking device 1 for the windshield of heavy equipment according to the present invention in the open state of the windshield.

As shown in FIG. 4A, when the windshield 110 is lifted up to open the windshield 110 with the front side of the cab 100 closed, as shown in FIG. 4B, As the second locking groove 43 of the latch member 40 contacts the second striker 103 provided on the cab 100, the latch member 40 is rotated in the locking direction, and the second striker 103 is rotated. The locking state is automatically set while being surrounded by the second locking groove 43.

When the latch member 40 is forcibly rotated in the locking direction, the locking state described above is engaged as one side of the lever 60 is engaged into the latching jaw 45 of the latch member 40 by the second coil spring 70. It is firmly maintained, and this locking state is not easily released by self-vibration or external shock of heavy equipment due to the elasticity of the second coil spring 70, so that the windshield 110 can be kept open.

In this state, when an external force greater than the elastic force of the second coil spring 70 is applied to the other side of the lever 60 and forced to rotate in the unlocking direction, the other side of the lever 60 is caught by the latch member 40. 45, the latch member 40 is rotated in the unlocking direction by the elasticity of the first coil spring 50, so that the second locking groove 43 is separated from the second striker 103 as the latch member 40 is rotated. The state is released, and the windshield 110 can be moved downward along the guide.

As described above, according to the locking device for the windshield of the heavy equipment according to the present invention, by unlocking the windshield of the heavy equipment already locked by a simple operation of operating the lever can open and close the front windshield of the heavy equipment.

In addition, the front glass window can be fixed not only in the front closed state but also in the front open state with only one device, so that the cost can be reduced.

In addition, despite the self-vibration and external shock of heavy equipment, there is an advantage that can be fixed firmly so that the front window is not opened and closed arbitrarily.

In addition, there is an advantage that the structure is relatively simple to reduce the failure rate.

Claims (3)

Body fixed to both sides of the front windshield is opened and closed while moving up and down along the guide installed on the cab of the heavy equipment; First and second fixed shafts having both ends fixed to the body, respectively; It is coaled so as to rotate in the unlocking direction on the first fixed shaft, and on one side, when it is rotated in the locking direction according to the selective contact with the first and second strikers installed on the cab of the heavy equipment during the opening and closing of the windshield. A latch member having first and second locking grooves selectively engaged with the second striker, respectively, the latching member being formed at the other side thereof; And It is coaled so as to rotate in the locking direction on the second fixed shaft, and one side is engaged with the latching jaw of the latch member when the latch member is rotated in the locking direction, and automatically sets and maintains the locking state, and the other side releases the locking. Protruding to the outside of the body so that the external force is applied for, the lever is rotated in the unlocking direction while one side is separated from the locking jaw when forced to rotate in the unlocking direction by an external force; includes Locking device for windshield of heavy equipment. The method of claim 1, wherein the body, A first plate having one end of each of the first and second fixed shafts fixed thereto; And One side is in contact with the first plate and the other side is spaced apart from the first plate is fixed to the other end of the first and second fixed shaft, respectively, the second plate to form a stopper for rotation in the unlocking direction of the latch member Locking device for the windshield of the heavy equipment comprising a. The method of claim 2, Locking device for the front glass window of the heavy equipment, characterized in that it further comprises a protective cover fitted to be installed on the first plate and the second plate.