Chain and chain guide plate
AssigneeTsubakimoto Chain Co.
InventorsHiroki Ishida, Shigenobu Sugasawa
Life of this patent
Estimating the term…
Abstract
The invention provides a chain and a chain guide plate that suppress occurrence of noise during chain traveling while attaining a reduction in costs and also attaining space saving. A chain includes first plate rows and second late rows. Each of the first plate rows includes a guide plate including a guide slide contact section for coming into slide contact with an inner side guide. The guide slide contact section extends in a chain longitudinal direction to be asymmetrical relative to an imaginary center line. During guiding by the inner side guide, lines drawn by the guide slide contact sections of a plurality of the guide plates are continuous in the chain longitudinal direction.
Claims6
A chain configured by alternately arranging in a shifted position by a half pitch in a chain longitudinal direction first plate rows and second plate rows, the rows including a plurality of plates arranged in parallel in a chain width direction, with the rows being movably coupled to one another, wherein
- each of the plate rows includes a plurality of inner plates and each of the second plate rows includes a plurality of inner plates,
- each of the first plate rows includes a plurality of guide plates each including a pair of pin holes formed side by side in the chain longitudinal direction and a guide slide contact section for coming into slide contact with an inner side guide arranged on a chain bending inner circumferential side,
- each guide slide contact section extends in the chain longitudinal direction asymmetrically relative to an imaginary center line extending in a chain height direction through a center between the pair of pin holes,
- the plurality of guide plates in a first row of said first plate rows includes at least two guide plates having swelling sections forming part of the respective guide slide contact section that extend reversely from one another in the chain longitudinal direction, and the plurality of guide plates in a second row of said first plate rows also includes at least two guide plates having swelling sections forming part of the respective guide slide contact section that extend reversely from one another in the chain longitudinal direction, and
- during guiding by the inner side guide, a collective longitudinal span of contact surfaces, extending in the chain longitudinal direction, of the guide slide contact sections of the plurality of the guide plates in the first row of said first plate rows extends at least to a collective longitudinal span of contact surfaces, extending in the chain longitudinal direction, of the guide slide contact sections of the plurality of the guide plates in the second row of said first plate rows that is adjacent said first row of said first plate rows, whereby a combined collective longitudinal span of the contact surfaces of said first row of said first plate rows and said second row of said first plate rows together are continuous in the chain longitudinal direction when viewed in the chain width direction facing said pin holes.
Dependencies are inferred from the claim text.