Chain transmission device
AssigneeTsubakimoto Chain Co.
InventorShuuji Hamaguchi
Life of this patent
Estimating the term…
Abstract
In a transmission chain, guide plates are provided on opposite ends of guide rows. In a guide row, both of the guide plates can be contact guide plates arranged to contact sides of the transmission sprocket teeth. However, some of the guide rows are formed with one guide plate configured for contact with the sprocket teeth and the opposite guide plate configured so that it does not contact the sprocket teeth. The sprocket tooth-contacting plates can be on one side of the chain in some of the guide rows and on the opposite side of the chain in other guide rows. The guide plates in still other guide rows are configured so that they never contact the sides of the sprockets.
Claims12
A chain transmission comprising:
- a chain elongated in a lengthwise direction and having a width in a widthwise direction perpendicular to the lengthwise direction, the chain comprising a plurality of guide rows and a plurality of link rows, said guide rows and link rows being arranged alternately along the lengthwise direction of the chain and flexibly interconnected to one another, each of the guide rows having a pair of guide plates spaced from each other in the widthwise direction and at least one first link plate disposed between the pair of guide plates, and each of the link rows having a plurality of second link plates;
- and
- a plurality of sprockets at least one of said sprockets being in driving relationship with the chain and at least one of the sprockets being in driven relationship with the chain, the chain having a plurality of wrapping portions, a wrapping portion being in engagement with, and extending around, a portion of each of the sprockets;
- wherein each of the guide plates of each of the guide rows is a guide plate from the group consisting of contact guide plates, which are able to come into contact with side surfaces of the sprockets when in a wrapping portion of the chain, and non-contact guide plates, which do not come into contact with either the side surfaces or the teeth of the sprockets when in the wrapping portion of the chain, and
- wherein the guide rows of the chain include at least one contact guide row having at least one contact guide plate, and at least one non-contact guide row having only non-contact guide plates.
Dependencies are inferred from the claim text.