Chain

Abstract

The invention provides a chain which can control manufacturing and assembling cost, and inhibit the wear increasing, heating and noise due to the repetitive deformation of a connecting pin and a guide link plate, and improve durability. As a tension force does not concentrated on a specific link plate, the strength of resisting tension force of an integral chain can be increased. For each guide link row, a pair of pins is provided for connecting the guide link rows (101) and non-guide link rows (102) in articulating relationship. The first connecting pin extends into first holes (111, 121, 131) of each of the guide plates of its guide link row and into and through the second hole of each link plate of an adjacent non-guide link row. The second connecting pin extends into second holes (112, 122, 132) of each of the guide plates extends into and through a first hole of each link plate of an adjacent non-guide link row. The connecting pins fit tightly into each first hole into which it extends and fits loosely in each second hole into which it extends.

Description

technical field [0001] The present invention relates to a chain in which a plurality of link plates are connected by connecting pins and a guide link plate is disposed on the outermost side. Background technique [0002] Conventionally, for example, there is known a silent chain used as a transmission chain, which has a guide link row provided with a pair of guide link plates on both outer sides in the width direction and a non-guided chain link row provided with at least one inner link plate. Chain link row; the chain plates of the guide chain link row and the non-guide chain link row have a pair of pin holes front and rear; the silent chain passes through the pin holes of the chain plate of the guide chain link row and the chain plate of the non-guide chain link row The connecting pins are respectively interspersed in the pin holes, so as to be alternately connected. [0003] Such as Figure 5 As shown, in the known chain 500, a pair of guide chain plates 510 are arranged...

AI Technical Summary

Problems solved by technology

[0017] According to the known chains described in Patent Documents 1, 2, etc., although the above-mentioned problem of unbalanced tension applied to the middle link plate and the inner link plate is alleviated to some extent, the bending and guiding of the connecting pin The bending problem of the chain plate has not been solved, and there is still the problem of deterioration of durability due to increased wear, heat generation and noise due to repeated deformation

[0018] In addition, since it is necessary to prepare intermediate link plates and inner link plates with different pin hole sizes and pitches, and to arrange them at correct positions, there is a problem of increased manufacturing and assembly costs.

[0019] Furthermore, since the size and pitch of the pin holes are set on the premise of a certain bending of the connecting pins, the amount of bending of the connecting pins changes as the tension of the chain changes. The tension on the chain will still be unbalanced, so the tension is concentrated on a specific chain plate, and there is a problem that the strength of the chain against tension as a whole is reduced

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