Chain belt wherein link plates holding load block member are shaped to avoid contact with adjacent load block members
AssigneesBorg-Warner Automotive, Inc., Toyota Jidosha Kabushiki Kaisha
InventorsShigeru Okuwaki, Yukio Tomimura
Life of this patent
Estimating the term…
Abstract
A power transmission chain belt wherein each of two mutually offset parallel chains includes connected sets of parallel links, and each chain is associated at its inner side with spaced-apart parallel load block members. Each set of parallel links includes link plates each having gripping protrusions on its inner-side end face which includes a concave part which is located between the protrusions and which engages an outer-side end face of the load block member. The inner-side end face of each link plate has surface regions which are spaced or offset from the concave part, in a direction from the inner side toward the outer side of the chain belt.
Claims11
A power transmission chain belt engageable with pulleys each having a V-groove, comprising:
- a first chain and a second chain which are arranged in side-by-side parallel relationship with each other, each of said first and second chains including a plurality of sets of parallel links, and pivot members for connecting said sets of parallel links, said first and second chains being offset from each other in a longitudinal direction thereof by a distance equal to a half of a pitch of said sets of parallel links;
- each of said plurality of sets of parallel links of said first and second chains including a plurality of link plates each of which has an inner-side end face on an inner side of said first and second chains, said each link plate having a pair of gripping protrusions formed so as to extend from an intermediate portion of said inner-side end face thereof, said inner-side end face including a concave part located between said pair of gripping protrusions;
- a plurality of load block members each of which has an outer-side end face on an inner side of said first and second chains, said load block members being arranged in spaced-apart parallel relationship with each other and held alternately by said gripping protrusions of said link plates of said first and second chains, with said outer-side end faces of said load block members engaging said concave parts of said link plates, said each load block member having a substantially constant height over an entire length thereof and being oriented such that the length of said each load block member is parallel to a direction of width of said first and second chains;
- and
- said inner-side end face of said each link plate having surface regions which are spaced from said concave part in a direction opposite to a direction of extension of said gripping protrusions, whereby said surface regions of each of said link plates of one of said first and second chains which link plates are held by one of said load block members are spaced apart from said outer-side end face of the other load block members which are held by the link plates of the other of said first and second chains and which are located adjacent to said one load block member.
Dependencies are inferred from the claim text.