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Sealed chain

A sealed, chain technology, applied in the direction of the transmission chain, etc., can solve the problems of damage to the O-ring 17 and the influence of the life of the O-ring, and achieve the effect of reducing production costs and preventing damage.

Inactive Publication Date: 2003-07-09
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So the problem is that the O-ring 17 is damaged and the life of the O-ring is affected

Method used

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  • Sealed chain
  • Sealed chain
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Examples

Experimental program
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Embodiment Construction

[0017] A sealed chain according to an embodiment of the present invention will refer to figure 1 describe. figure 1 is a sectional view of main parts of a sealed chain according to an embodiment of the present invention. figure 1 The shown sealed chain 21 includes an inner plate 23, a roller 24, an outer plate 26 and an O-ring 27, and the two ends of the sleeve 22 are press-fitted and fixed in the sleeve press-fit hole 23a of the inner plate 23, The roller 24 is rotatably fitted around the outer peripheral surface of the sleeve 22, the two ends of the pin 25 fitted in the sleeve 22 are fixed on the outer plate 26 with a gap, and the O-ring 27 (made of elastic material) An annular sealing member) surrounds the pin 25 and is attached to the inner surface side of the outer plate 26 . And lubricating oil such as grease is sealed between the outer peripheral surface of the pin 25 and the inner peripheral surface of the sleeve 22 .

[0018] In addition, a hollow is formed in the ...

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PUM

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Abstract

A sealed chain includes an inner plate, an outer plate and an annular seal member. Both ends of a bush are pressed and fixed into bush pressing holes. Both ends of a pin coupled in the bush are fixed on the outer plate with space. The annular seal member made of the elastic material is mounted on the inner surface of the outer plate while surrounding the pin. Both ends of the bush are pressed and fixed in the bush pressing holes to form a void in order to make the end surfaces of the bush are located inward of the outer surface of the inner plate. The outer edge of each bush pressing hole is beveled to form a beveled part so that the annular sealing member made of the elastic member is attached in a compressed manner by the inside surface of said outer plate, the outer peripheral surface of said pin, an end surface of the bush and the beveled portion while a part of said annular sealing member being positioned in the hollow.

Description

technical field [0001] The present invention relates to a sealed chain having an annular seal member made of an elastic material in order to prevent lubricant oil (such as grease) sealed between an outer peripheral surface of a pin and an inner peripheral surface of a sleeve from leaking to the outside while simultaneously Foreign substances are prevented from entering the gap between the outer peripheral surface of the pin and the inner peripheral surface of the sleeve. Background technique [0002] Common conventional sealed chains include those shown in Figure 2 (see figure 1 Japanese Utility Model Publication No. Sho.54-45864). Fig. 2 is a sectional view of main parts of a conventional sealed chain, which is a general sealed chain. In Fig. 2, the sealed chain includes an inner plate 3, a roller 4, an outer plate 6 and an O-ring 7, and the two ends of the sleeve 2 are press-fitted and fixed in the sleeve press-fit hole 3a of the inner plate 3 , the roller 4 rotatably f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16G13/02F16G13/06
CPCF16G13/06F16G13/02
Inventor 中川贵司
Owner TSUBAKIMOTO CHAIN CO