KR20130059722A - A excavator for prefabricated handrail structure - Google Patents

Abstract

The present invention relates to a prefabricated handrail for installing an excavator, and to allow the handrail to be separated or height-adjusted according to a site situation in an excavator working process.
The present invention for realizing this, in the handrail of the upper frame and the fuel tank upper surface is installed so that the operator can go up to one side of the excavator body through the scaffold, the upper frame and the upper end so that both ends of the handrail is fitted Rail supporters are provided at upper portions of the fuel tank, respectively, bolt fastening grooves for fastening the fixing bolts are formed in the rail support, and bolt through holes are formed at both ends of the hand rail corresponding to the bolt fastening grooves. It is characterized by.

Description

Prefabricated handrail for excavator installation {A EXCAVATOR FOR PREFABRICATED HANDRAIL STRUCTURE}

The present invention relates to an excavator equipped with a prefabricated handrail, and more particularly, to a handrail assembly structure for improving durability and workability by providing a prefabricated improvement structure capable of detachable handrail.

In general, an excavator is a construction machine that carries out excavation work, such as digging a ground, loading work carrying earth and sand, breaking work to dismantle a building, and stopping work to clean up the ground. Since it is transmitted to the main body, it should be designed to secure its durability.

On the other hand, among the components constituting the excavator, a structure such as a hand rail is a device that provides safety directly to the driver and operator. Such structures must be designed to be sufficiently durable.

In particular, the handrail of the excavator is installed on the front right side of the upper frame, and the handrail is held on the upper frame when oiling during operation or maintenance and maintenance of the equipment. At this time, the handrail serves as a safety device that prevents a worker from falling.

The provisions for height and load of handrails for safety are well described in ISO / FDI2867, which refers to the regulation of load and height of handrails.

As shown in FIG. 1, the handrail of the excavator according to the prior art is a handrail 3 which is used when climbing the upper frame 2 through the scaffold 1 to maintain and inspect components such as an engine. One end is fixed on the upper frame 2 to the right, and the upper end of the hand rail 3 is fixed to the upper surface of the fuel tank 4.

At this time, the handrail 3 is defined to maintain a predetermined height (about 800 mm) from the mounting surface of the fuel tank 4. The mirror 6 is fixed to the handrail 3 via a stay 7 so that the driver in the cab 5 can secure the view of the rear and side of the construction equipment.

It can be seen that a structure such as a tool box 10 is located above the lower step 9 formed on the lower frame 8 side. In the drawings, reference numeral 13 denotes a boom, and 15 denotes a bucket seat.

However, since the conventional handrail is integrally formed with the excavator body, when the damage occurs due to external impact and vibration, the entire handrail is not only replaced, but also the handrail is broken by an external protrusion during operation. There was a problem that occurred.

The present invention has been proposed to improve the problems in the conventional handrail configuration, by providing a handrail coupling structure that can be easily adjusted as well as the detachment of the handrail to improve the work efficiency and work convenience. The purpose is to make it work.

The present invention for achieving the above object, in the hand frame of the upper frame and the fuel tank upper surface is installed so that the operator can go up to the upper side of the excavator body through the scaffold, and the upper frame so that both ends of the hand rail is fitted Rail supporters are fixed to upper portions of the fuel tank, and bolt support grooves for fastening the fixing bolts are formed in the rail support, and bolt holes are provided at both ends of the hand rail corresponding to the bolt fastening grooves. It is characterized by being formed.

In addition, the bolt through hole and the bolt fastening groove is formed in plural, characterized in that formed to enable the adjustment of the fastening height of the hand rail.

The present invention, it is possible to prevent the occurrence of damage due to the collision with the handrail by applying the rail structure made by the forging method and the prefabricated structure capable of disassembling the handrail according to the working environment during excavator operation.

In addition, it is possible to adjust the height of the installation of the handrail as necessary, it is possible to improve the work safety.

1 is a detailed view of the conventional structure and handrail coupling portion of a conventional excavator.
Figure 2 is an exploded perspective view of the coupling portion of the handrail for the present invention excavator.
Figure 3 is a perspective view of the handrail coupling for the present invention excavator.
Figure 4 is a side view of the separated state of the handrail for the present invention excavator.
Figure 5 is a side view of the coupled state of the handrail for the present invention excavator.
Figure 6 is an enlarged cross-sectional view of the handrail coupling portion separated state in the present invention.
Figure 7 is an enlarged cross-sectional view of the handrail coupling portion coupled state in the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, looking at the coupling structure of the handrail for excavator according to an embodiment of the present invention through FIGS. 2 to 7, the upper frame (2) and the operator to climb through the scaffold (1) on one side of the excavator body When the hand rail 20 is installed on the upper surface of the fuel tank 4, the rail supports 30 are respectively provided on the upper frame 2 and the fuel tank 4 so that both ends of the hand rail 20 are fitted together. It is fixed and configured, each rail support 30 is formed with a bolt fastening groove 31 for fastening the fixing bolt 32, the bolt through hole at both ends of the hand rail 20 corresponding to the bolt fastening groove 31 (21) was formed.

In particular, the bolt through hole 21 and the bolt fastening groove 31 are formed in plural to be provided to be able to adjust the fastening height of the hand rail (20).

Excavator structure provided with the scaffold 1 and the upper frame (2) is a known technique, so a detailed configuration description related to the excavator will be omitted in the present embodiment.

In the figure, reference numeral 10 denotes a tool box, and 33 denotes a nut to be fastened to the fixing bolt 32.

The effect of the application of the handrail coupling structure of the present invention constituting such a configuration will be described.

Both ends of the handrail 20 are respectively inserted into the rail support 30, which is fixed to the upper surface of the upper frame 2 and the upper surface of the fuel tank 4 of the excavator body, respectively, and then fixed to the bolt fastening holes 31. When the 32 is inserted, the fixing bolt 32 is fastened through the bolt hole 21 so that the fixed state of the hand rail 20 is achieved. Here, the rail support 30 is produced by the forging method.

On the other hand, when the handrail 20 interferes with the surrounding protrusions during the excavator operation process, the fixing bolt 32 is separated and the handrail 20 is temporarily removed from the rail support 30. It is possible to prevent breakage.

In addition, when the installation height of the hand rail 20 is too low or high, the corresponding position of the bolt through hole 21 formed at both ends and the bolt fastening hole at the rail support 30 side by adjusting the height of the hand rail 20 is provided. After changing the fixed bolt 32 by fixing the operator can easily see that the handrail 20 can be adjusted in height.

In addition, when the handrail 20 is damaged or deformed, the handrail 20 is detached from the rail support 30 and then a new handrail is assembled and mounted, thereby making it easy to replace and reduce the replacement cost. You can do it.

In addition, although specific embodiments of the present invention have been described and illustrated above, it will be apparent that the handrail coupling structure of the present invention may be variously modified and implemented by those skilled in the art.

However, such modified embodiments should not be understood individually from the spirit or scope of the present invention, such modified embodiments will be included within the claims of the present invention.

1: scaffolding 2: upper frame
4 fuel tank 10 tool box
20: hand rail 21: bolt through
30: rail support 31: bolt fastening
32: fixing bolt 33: nut

Claims (2)

In the handrail of the upper frame and the fuel tank upper surface is installed so that the operator can ascend to the upper side of the excavator body through the scaffold,
Rail supporters are fixed to upper portions of the upper frame and the fuel tank so that both ends of the handrail are fitted,
The rail support is formed with a bolt fastening groove for fastening the fixing bolt,
Prefabricated handrails for excavator installation, characterized in that the through holes are formed on both ends of the handrail corresponding to the bolt fastening groove. The method of claim 1,
The bolt through hole and the bolt fastening groove is formed of a plurality of prefabricated handrail for installation of excavators, characterized in that formed to enable the adjustment of the fastening height of the handrail.

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