JP2006037693A - Leg expanding and contracting function of rail hoisting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To more safely and surely set a rail hoisting machine horizontal in hoisting the rail even in a job site of maintenance works for railway having irregular steps. <P>SOLUTION: A pin insert hole 7 is bored in an outer cylinder 2 of an expanding and contracting leg, an inner cylinder 4 of the expanding and contracting leg is provided with a plurality of expanding length adjusting holes 6 is slid in the outer cylinder 2 of the expanding and contracting leg to adjust the height to a proper value, and a pin 8 is inserted into the hole to set the leg. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a telescopic function of a leg of a rail hoisting machine used for manual maintenance work.

  When installing the rail hoisting machine on a sloping ground, it is necessary to correct it horizontally, but in the conventional rail hoisting machine, the two legs that support the chain block do not have a telescopic function, and the base plate It is necessary to adjust the height by putting a piece of wood underneath.

  Rail hoisting machines are used for railway track maintenance work, and it is important from the standpoint of safety and work efficiency to install rail hoisting machines horizontally at railway work sites with many slopes and undulations. The technology-based rail hoisting machine does not have an adjustment mechanism for horizontal installation, and is adjusted by placing a piece of wood under the base plate, so that more pieces of wood etc. are used in piles where the slope is tight There is a problem from the viewpoint of safety and work efficiency, for example, stability may be lost, and often people forget to bring pieces of wood to the work site.

  In the present invention, a telescopic leg inner cylinder that can slide in the leg cylinder is arranged on one or both of the leg cylinders that support the chain block, and the length of the leg can be changed. The purpose is to obtain a telescopic leg of a rail hoisting machine that can safely and efficiently adjust the level of the chain block according to the inclination and undulation of the site.

  In order to achieve the above object, in the rail hoisting machine of the present invention, a base plate is not attached to the end of the leg cylinder, but an expansion / contraction inner cylinder that can be slid into the leg cylinder is arranged. A base plate is attached to the end of the inner cylinder, and a lock mechanism is provided so that the length can be maintained at the position of the required leg length.

  By adjusting the expansion / contraction length of the inner cylinder of the telescopic leg according to the inclination of the ground and the size of the undulations, the chain block can be installed horizontally more safely and efficiently.

  Since the rail hoisting machine is installed horizontally, it is not necessary to carry a piece of wood to be adjusted under the base plate.

  The conventional rail hoisting machine adjusts the height by putting a piece of wood under the base plate, so that it is difficult to obtain a stable installation state, such as a piece of wood being displaced or detached, for safety and work efficiency. However, in the rail hoist according to the present invention, since the length adjusting mechanism is integrated with the main body, the height can be reliably and stably adjusted.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described based on examples with reference to the drawings.

  In FIG. 1, a telescopic leg outer cylinder (2) having a fixed leg cylinder (3) and a pin insertion hole (7) attached to both lower ends of the chain block (1). The telescopic leg inner cylinder (4) is slidable in the telescopic leg outer cylinder (2), and several expansion length adjustment holes (6) are opened on the side of the telescopic leg inner cylinder (4). It is a thing. The expansion / contraction length adjustment hole (6) of the inner cylinder adjusted to the length corresponding to the inclination is aligned with the pin insertion hole (7), and the pin (8) is inserted and locked to fix the length of the expansion / contraction leg.

  It is the figure which showed the whole figure and use condition of the rail hoisting machine.

Explanation of symbols

1 Chain block
2 Telescopic leg cylinder
3 Fixed leg tube
4 telescopic leg inner cylinder
5 Base plate
6 Stretching length adjustment hole
7 Pin insertion hole
8 pins
9 Rail catch 10 Rail

Claims (1)

  Rail suspension with a telescopic function with a telescopic leg inner cylinder (4) on the two legs that support the chain block (1), the telescopic leg outer cylinder (2) and the fixed leg cylinder (3), and a locking mechanism attached Upper machine.

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