JPH0496Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a guide shoe attachment device for a telescopic arm of a dust remover or other equipment.

(b) Prior art In the case of a telescopic arm in which arms made of H steel, channel steel, etc. of different diameters are slidably fitted, a retractable arm is provided on the entire length of the inner surface of the outer arm to ensure smooth sliding. A guide shoe protruding dottedly from the outer surface of the inner arm is brought into contact with a guide rail that has good sliding.

The guide shoe is installed in a very narrow space and must be replaced every few years.

(c) Problems to be solved by the invention Since the guide shoe is fixed to the arm from the outside by bolting, there was a problem in that the arm had to be disassembled when replacing the guide shoe, making the replacement work extensive.

(d) Means for Solving the Problems In order to solve the above problems, the present invention combines arms made of H steel or channel steel with different diameters so that they can slide freely, and also A guide rail made of a slippery material such as stainless steel is provided on the entire length of the bottom and both sides, and the short guide shoe installed on the small diameter arm is in contact with this guide rail. A guide shoe is fitted into each of the holes, and a collar protruding from part or all of the periphery of the back surface of the guide shoe is brought into contact with the inner surface of the arm, and a guide shoe is fitted into the back surface of the guide shoe located at the center. A fastening tool that supports a trapezoidal center holding fitting whose width between both sides becomes wider toward the guide shoe, is further fitted between the center holding fitting and a guide shoe located on the side, and is supported by an arm. A wedge-shaped side holding fitting is provided that pushes the side guide shoe outward when tightened.

(e) Examples In the figure, 1 is a telescopic arm.

The above-mentioned telescopic arm 1 is formed by slidably fitting arms 11 made of H steel or channel steel having different diameters.

Further, a guide rail 12 made of a material with good sliding such as stainless steel is provided on the inner bottom surface and the entire length of both sides of the large diameter side arm 11, and a short guide shoe 13 provided on the small diameter side arm 11 is attached to this guide rail 12.
contact, ensuring smooth sliding due to reduced frictional resistance.

The method for attaching the guide shoe 13 is to provide through-holes 14 at the guide shoe attachment positions of the small-diameter arm 11, fit the guide shoe 13 into each of the through-holes 14, and then attach the guide shoe 13 to the guide shoe 13.
Tsuba 1 protruding from part or all of the periphery of the back surface of
5 is brought into contact with the inner surface of the arm 11 to prevent the guide shoe 13 from coming off from the through window 14.

Next, a trapezoidal center presser metal fitting 16 is supported on the back surface of the guide shoe 13 located at the center, with the width between both sides increasing toward the guide shoe 13.

The above support direction is the guide shoe 1 in the case shown.
The pin 17 protruding from the upper and lower ends of the back surface of the center presser fitting 16 is fitted into the through hole 18 of the center presser fitting 16.

After that, a wedge-shaped side presser metal fitting 1 is inserted between the center presser metal fitting 16 and the side guide shoe 13.
At the same time, the bolt 20 protruding from the arm 11 is passed through the through hole 21 of the side holding fitting 19, and the nut 2 is screwed into the bolt 20.
2, the side presser fittings 19, 19 are pushed in to support each guide shoe 13 while being pressed against it.

(F) Effects As explained above, according to the mounting device of the present invention, each guide shoe is supported by pushing in the center holding fittings together with the side holding fittings by tightening, so that installation can be performed extremely easily and quickly.

[Brief explanation of the drawing]

FIG. 1 is a side view of the mounting device of the present invention, FIG. 2 is a cross-sectional plan view thereof, and FIG. 3 is a perspective view of the guide shoe. 1... telescopic arm, 11... arm, 12...
Guide rail, 13...Guide show, 14...
Passing window, 15... Tsuba, 16... Presser metal fitting, 17...
Pin, 18... Through hole, 19... Presser fitting, 20...
...Bolt, 21...Through hole, 22...Natsuto.

Claims (1)

[Scope of utility model registration request] Arms made of H steel or channel steel with different diameters are slidably fitted together, and a guide rail made of a smooth material such as stainless steel is provided on the entire length of the bottom and both sides of the large diameter arm. In the telescopic arm that is in contact with the short guide shoe provided on the small diameter arm, a through hole is provided at the guide shoe attachment position of the small diameter side arm, and the guide shoe is fitted into each of the through holes, and the back side of the guide shoe is inserted. A flange protruding from part or all of the periphery is brought into contact with the inner surface of the arm, and a trapezoidal center presser metal fitting is supported on the back surface of the guide shoe located at the center, the width between both sides increasing toward the guide shoe; Furthermore, it is inserted between the center holding metal fitting and the guide shoe located on the side,
A guide shoe mounting device for a telescoping arm that is equipped with a wedge-shaped side holding fitting that pushes the side guide shoe outward by tightening a fastener supported by the arm.