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Sealed chain

A chain and rigid sealing technology, applied in the direction of the transmission chain, etc., can solve the problem of the decline of the sealing performance, and achieve the effect of smooth movement and maintaining the sealing effect.

Inactive Publication Date: 2006-12-06
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it will be found that the sealing performance decreases

Method used

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  • Sealed chain
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Examples

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Embodiment Construction

[0016] Refer below Figure 1-3 The sealing chain of Example 1 which is a preferred embodiment of the present invention is described. in particular, figure 1 shows the overall structure of the sealing chain 20, while figure 2 is an enlarged cross-sectional view of a seal structure that is characteristic of the seal chain of Example 1 of the present invention. figure 2 corresponds to figure 1 The part shown in the dotted circle A.

[0017] The sealed chain 20 is a chain with a plurality of connecting components connected. In the sealed chain 20, one of the adjacent connecting components includes a pair of inner plates 21, 21 spaced apart in a direction perpendicular to the longitudinal direction of the chain, and a hollow cylindrical liner press-fitted in the pair of inner plates. Sleeve 24; The other of this adjacent connection assembly comprises a pair of outer plates 22, 22 spaced along the direction perpendicular to the longitudinal direction of the chain at the outer...

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PUM

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Abstract

The invention provides a seal chain which restrains wearing of a seal member, hinders fine powder from going into the seal chain, and keeps high sealing performance for a long time. Sealing structure is made by interposing a first rigid sealing member 34, whose back face contacts the internal plate 21, and a second rigid sealing member 31, whose back face contacts the external plate 22, between the surfaces of internal plates 21 and 22 which oppose to each other, holding an elastic sealing member 35 between one side face of the first rigid sealing member 34 and one side face of the second rigid sealing member 31, and forming a slit-shaped communication passage 34a in at least either the first rigid sealing member 34 or the second rigid sealing member 31 so as to communicate the two spaces sharing the elastic sealing member 35 as a boundary between them.

Description

technical field [0001] The present invention relates to a sealing chain having an annular sealing member made of an elastic material for preventing lubricating oil (such as grease) sealed between the outer peripheral surface of a pin and the inner peripheral surface of a bush from leaking outward , and at the same time prevent foreign substances from entering the gap between the outer peripheral surface of the pin and the inner peripheral surface of the bushing. Background technique [0002] The sealing chain generally has a sealing structure A of the space S between the inner plate 21 and the outer plate 22 . As the sealing structure, various types of sealing structures have been proposed, such as figure 1 (a) and 1(b). For example, if Figure 6 As shown, in the vicinity of the outer peripheral surface of the edge of the bush 24 loosely fitted on the pin 23, the necessary tapered surfaces are formed on the opposite side peripheral surfaces of the first rigid sealing memb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16G13/02
Inventor 藤原诚
Owner TSUBAKIMOTO CHAIN CO