KR101427157B1 - Buffering damper for heavy equipment - Google Patents

Abstract

The present invention relates to a shock absorbing damper for heavy equipment for dissipating an impact when a door or an engine hood is shielded, the shock absorbing damper being provided at one side of a frame constituting a cabin or engine room of a heavy equipment, A slider which is accommodated in the fixed rod and is variable in length to be exposed to the outside of the fixed rod while being slidably moved, and a buffer head of elastic material provided at an end of the slider, And an elastic member for performing an additional buffering action while being elastically compressed or restored according to the moving position, wherein the fixing rod is provided with a fastening part fixed to the frame and a fastening part integrally formed with the fastening part, A housing formed to be open at one side thereof, One end of the rider and comprising a housing cover which is a through hole formed so as to be exposed to the outside, the housing is formed in a polygonal column shape. According to this, the first buffering by the material of the buffering head, the second buffering by the coupling relation of the elastic member, the slider, the buffering head and the fixing rod are performed, and more effective buffering is achieved. So that it can be easily installed and used without adjusting the protruding length.

Description

{Buffering damper for heavy equipment}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heavy duty shock absorbing damper for mitigating shocks during shielding of components such as heavy equipment doors or engine hoods.

Generally, a damper is a device used to reduce vibrations or impacts by dissipating energy, and is provided in a cabin or an engine room of a heavy equipment so as to perform a damping action.

FIG. 1 shows a door striker in a cabin for construction heavy construction according to the prior art.

Referring to the drawings, in the prior art, a plurality of rails are formed on the outer side wall of the cabin 2 so that the door 3 can be opened and closed along the rails.

The upper rail 4 and the upper roller 7 are provided on the upper side of the cab 2 and the center rail 5 and the center roller 8 are provided at the center and the lower rail 6, A lower roller 9 is provided. The door 3 may be connected to the respective rails to be slidably opened and closed.

As described above, when the door 3 is opened or closed, an impact occurs when the door 3 is opened or shielded. To prevent this, a plurality of strikers 20 are provided in the cab 2.

That is, the striker 20 is provided at a contact portion when the door 3 is opened and closed to dissipate the opening / closing impact of the door 3, and is provided with a loader 21 fixed to the cab 2 frame, And a cover (24).

In the prior art, the cushioning lid 24 is configured so as to cover the end of the loader 21 so as to be interchangeable. By adjusting the projecting length by using the threaded portion of the loader 21, the collision position of the door 3 is adjusted do.

However, in the related art as described above, there is a problem that the user must directly adjust the protruding length in order to adjust the collision position, and it has a problem that it depends only on the material characteristic of the cushion cover 24.

It is an object of the present invention to provide a heavy duty damping damper that can be used by a user after installation without adjustment of the projecting length.

It is another object of the present invention to provide a shock absorbing damper which can more effectively perform shock dissipation by structurally performing a damping function.

It is another object of the present invention to provide a shock absorbing damper capable of reducing the noise due to vibration in a state in which the door is shielded by imposing a restraining force on the door.

The present invention relates to a shock absorbing damper for heavy load for dissipating an impact when a door or an engine hood is shielded, which is provided at one side of a frame constituting a cabin or an engine room of a heavy equipment. The shock absorbing damper includes a fixed rod fixedly mounted on the frame, A slider which is accommodated in the fixed rod and slidably moves while being exposed to the outside of the fixed rod and a buffer head of elastic material provided at an end of the slider, And an elastic member for performing an additional cushioning function while being elastically compressed or restored. The fixing rod includes a fastening part fixed to the frame, and a fastening part integrally formed with the fastening part, A housing which is coupled to the housing, And a housing cover having a through hole formed therein so that one end thereof may be exposed to the outside, wherein the housing is formed in a polygonal columnar shape.

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The slider includes a main body having a cylindrical shape, a grasp portion having a portion of the outer surface of the main body chamfered to allow the user to grasp it during assembly or disassembly operation, And a locking protrusion protruded outward from an outer surface of the main body to interfere with the through hole.

The housing and the housing lid are formed with helical grooves and threads corresponding to each other and are rotatably coupled to each other.

The heavy duty buffer dampers according to the present invention are structured such that the buffering function can be structurally performed by the elastic member and the slider in addition to the material buffering function of the buffering head.

Further, according to the present invention, since the cushioning head presses the door with the elastic member in a state that the door is shielded, the vibration of the door generated during traveling or work can be reduced.

In addition, in the present invention, the cushioning head is automatically adjusted in its length by the elastic member and the slider by the external pressure, so that the user can easily install the cushioning head without having to adjust the protruding length directly.

In addition, since the guide bush for guiding the movement path of the slider is further provided in the present invention, the slider can be stably moved even in a strong external impact.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a door striker in a cabin of a heavy construction machine according to the prior art; FIG.
2 is a view showing an embodiment of a shock absorber for heavy equipment according to the present invention.
3 is an exploded perspective view showing the detailed configuration of Fig.
4 is a cross-sectional view taken along the line II 'in Fig. 2
5 is a view for explaining an operation of a heavy duty damping damper according to the present invention.
6 is a view showing an installation form of a shock absorber for heavy equipment according to the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

FIG. 2 is an exploded perspective view showing a detailed configuration of FIG. 2, and FIG. 4 is a sectional view taken along line II 'of FIG. 2 Sectional view is shown.

Referring to these drawings, the heavy duty shock absorbing damper 100 according to the present invention includes a fixed rod 200 fixedly mounted on a door frame or an engine room frame, a slider (not shown) slidably coupled to the fixed rod 200 300 and a cushioning head 400 provided at an end of the slider 300 and directly contacting the door or the engine hood.

The fixed rod 200 includes a fastening part 220 fixed to a mounting place such as a door frame or an engine room frame, a housing 240 having one side opened and a predetermined space provided therein, And a housing cover 260 for shielding an opened side of the housing cover 260.

The fastening part 220 may be integrally formed with the housing 240 by being screwed on the outer surface of the fastening part 220 so as to be rotatably fastened to the mounting position such as the door frame or the engine room frame.

The housing 240 is formed in a polygonal column or a cylindrical shape so that the user can easily grasp the housing cover 260 when the housing cover 260 is disassembled or assembled. So that at least the diameter of the slider 300 is larger than the diameter of the slider.

The housing cover 260 is formed to have a size corresponding to the opened upper surface of the housing 240 and coupled to the housing 240.

To this end, the inner surface of the upper end of the housing 240 and the outer surface of the lower end of the housing cover 260 are formed with helical grooves and threads corresponding to each other and are rotatable. The housing cover 260 is formed with a through hole corresponding to the diameter of the slider 300.

The slider 300 includes a main body 310 formed in a substantially cylindrical shape and a grip 320 formed on the main body 310 to be easily gripped when fastened or disassembled. And a locking protrusion 340 formed on the housing cover 260 to prevent the slider 300 from being detached through the housing cover 260 when the slider 300 is housed in the housing 240.

More specifically, the grip 320 may protrude from the outer surface of the main body 310, so that the slider 300 may be slidably inserted into the main body 310 So that it can not pass through the through hole when it is accommodated in the housing 240.

When the slider 300 slides in contact with the end of the elastic member 500 as described above, the locking protrusion 340 presses the elastic member 500, And is formed in a ring shape at the lower end of the outer surface of the main body 310.

The elastic member 500 may be a spring spring and presses the slider 300 while elastically compressing and restoring the gap between the bottom surface of the inner space of the housing 240 and the locking protrusion 340.

A guide bush 6000 is further provided in the housing 240 to guide the moving path of the slider 300.

The guide bush 600 is formed to be able to accommodate the elastic member 500 as well as the slider 300 to guide the slider 300 in a more stable sliding manner, 500 can be transmitted stably.

On the other hand, at the end of the slider 300 configured to slide as described above, a shock absorbing head 400 directly contacting the structure such as a door or an engine hood is provided.

The cushioning head 400 is formed of an elastic material of the slider 300 and a coupling hole having a diameter smaller than the diameter of the slider 300 is provided on a surface coupled to the slider 300. That is, when the end of the slider 300 is inserted into the coupling hole while being pressed by the door or the engine hood, the buffering head 400 can perform the buffering function by the elastic material.

Hereinafter, the operation of the present invention will be described with reference to the accompanying drawings.

FIG. 5 is a view for explaining an operation of a heavy duty damping damper according to the present invention, and FIG. 6 is a view showing an installation form of a heavy duty damping damper according to the present invention.

Referring to these drawings, the heavy duty shock absorbing damper 100 according to the present invention is fixed to a separate bracket 60 so as to be provided inside the frame 50 in consideration of a shielding position of a structure such as a door or an engine hood. .

In the heavy duty damping damper 100 according to the present invention, the installation can be completed only by providing the end of the housing 240 fastened to the bracket 60 so as not to protrude from the frame 50.

In detail, in the heavy duty buffer damper 100 according to the present invention, the protrusion length is adjusted by external pressure while the slider 310 is slid inside the housing 240.

That is, the degree of protrusion of the cushioning head 400 coupled to the ends of the main body 310 and the main body 310 of the slider 300 is such that when the door or the engine hood is shielded, the elastic member 500 is compressed The length is automatically adjusted. In this process, the shock is dissipated by the structural coupling between the material properties of the cushioning head 400 and the slider 300 pressing the elastic member 500.

Further, in the case of the door or the engine hood, since the pressing force is applied by the shock absorbing head 400 while the restoring force of the elastic member 500 is exerted, the shielded state is maintained more firmly in the state where the tightening force is not released, And noise can be reduced.

100 ..... Heavy duty dampers 200 ..... Fixing rod
220 ..... fastening part 240 ..... housing
260 ..... Housing cover 300 ..... Slider
320 ..... grip part 340 ..... hanging chin
400 ..... buffer head 500 ..... elastic member

Claims (5)

delete A shock absorbing damper for a heavy duty for dissipating an impact when a door or an engine hood is shielded by being provided at one side of a frame constituting a cabin or an engine room of a heavy equipment,
A fixed rod fixedly mounted on the frame,
At least a portion of which is accommodated in the fixed rod and is slidably moved while being exposed to the outside of the fixed rod; And
And a cushioning head of an elastic material provided at an end of the slider,
The fixing rod is further provided with an elastic member that performs an elastic compression or a restoring operation according to a moving position of the slider to perform an additional buffering action,
In the fixed rod,
A fastening portion fixed to the frame,
A housing formed integrally with the fastening portion and having a predetermined space therein and having one side opened;
And a housing cover which is fastened to the housing and has a through hole so that one end of the slider can be exposed to the outside,
Wherein the housing is formed in a polygonal columnar shape.
delete The slider according to claim 2,
A main body having a cylindrical shape,
A grip portion for chamfering a part of the outer surface of the main body so that the grip portion can be gripped by a user during assembly or disassembly;
And a locking protrusion protruded outward from an outer surface of the main body to interfere with the through hole so as not to be detached through the through hole from the inside of the housing.
3. The method of claim 2,
Wherein the housing and the housing lid are formed with helical grooves and threads corresponding to each other and are rotationally coupled to each other.

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