To provide a simple-structured tensioner lever capable of consistently exerting a correct reaction force to various fluctuations of tension accompanying varying chain behaviors, whereby vibration and noise when the chain runs can be reduced. The tensioner lever of the present invention includes a lever body having a shoe surface that slidably guides a chain; a first pressing spring configured to have a first pressing arm extending from one end of a first helical part, with a distal end portion contacting the lever body to form a first loading point, and a first support arm extending from the other end of the first helical part, with a distal end portion contacting and being supported by a first support part provided to an attachment surface to form a first support point; and a second pressing spring supported on the lever body at a different position from that of the first pressing spring.

An object of the present invention is to provide a chain tensioner that can prevent breakage or deformation of its components during transport or storage, prevent wrong assembly, and increase the degree of design freedom. The chain tensioner includes a guide lever supported pivotably on an arm part that is provided to a tensioner body. The tensioner body has a body-side fixing pin hole positioned for a stopper pin to pass through without extending through the plunger. The guide lever has a lever-side fixing pin hole that comes to be coaxial with the body-side fixing pin hole in a predetermined pivoting position.

An object of the present invention is to provide a chain tensioner that can prevent breakage or deformation of its components during transport or storage, prevent wrong assembly, and increase the degree of design freedom. The chain tensioner includes a guide lever supported pivotably on an arm part that is provided to a tensioner body. The tensioner body has a body-side fixing pin hole positioned for a stopper pin to pass through without extending through the plunger. The guide lever has a lever-side fixing pin hole that comes to be coaxial with the body-side fixing pin hole in a predetermined pivoting position.

A damper device for a wrap-around means of a wrap-around transmission includes a carrier body formed from a composite reinforced plastic and comprising a surface, a sliding surface forming a first part of the surface, and a bearing surface for a pivoting means, the bearing surface forming a second part of the surface. The sliding surface or the bearing surface may be formed from a separate layer free of composite reinforcing means. The separate layer may be produced as a step of a multi component injection molding method with the carrier body being produced in a common injection mold in another step, as a coating on the carrier body, or as a separate component mechanically connected to the carrier body.

A damper device for a wrap-around means of a wrap-around transmission includes a carrier body formed from a composite reinforced plastic and comprising a surface, a sliding surface forming a first part of the surface, and a bearing surface for a pivoting means, the bearing surface forming a second part of the surface. The sliding surface or the bearing surface may be formed from a separate layer free of composite reinforcing means. The separate layer may be produced as a step of a multi component injection molding method with the carrier body being produced in a common injection mold in another step, as a coating on the carrier body, or as a separate component mechanically connected to the carrier body.

To provide a chain guide, chain drive device, and transmission system, with which an amount of lubricating oil supplied to guide surfaces is increased. The chain guide includes an upper additional extension formed to extend from an upper end of a sliding guide part in the guide longitudinal direction and having an oil-recovery guide surface positioned opposite and spaced from the chain.

To provide a chain guide, chain drive device, and transmission system, with which an amount of lubricating oil supplied to guide surfaces is increased. The chain guide includes an upper additional extension formed to extend from an upper end of a sliding guide part in the guide longitudinal direction and having an oil-recovery guide surface positioned opposite and spaced from the chain.

An object of the present invention is to provide a chain guide that eliminates the burden of assembling a guide shoe and a base member together, and prevents the guide shoe from being limited in its movement in the longitudinal guiding direction relative to the base member to improve durability. The guide shoe and the base member of the chain guide according to the invention are united by being integrally molded. The chain guide includes a fixed engaging part where the guide shoe engages with the base member such that the guide shoe is restricted from moving in the longitudinal guiding direction relative to the base member, and a movable engaging part where the guide shoe engages with the base member such that the guide shoe is slidable relative to the base member. A molding gate mark is positioned at or near the fixed engaging part.

An object of the present invention is to provide a chain guide that eliminates the burden of assembling a guide shoe and a base member together, and prevents the guide shoe from being limited in its movement in the longitudinal guiding direction relative to the base member to improve durability. The guide shoe and the base member of the chain guide according to the invention are united by being integrally molded. The chain guide includes a fixed engaging part where the guide shoe engages with the base member such that the guide shoe is restricted from moving in the longitudinal guiding direction relative to the base member, and a movable engaging part where the guide shoe engages with the base member such that the guide shoe is slidable relative to the base member. A molding gate mark is positioned at or near the fixed engaging part.

To provide a chain guide that can improve transportability and assembly operation efficiency, while also ensuring stable running of a timing chain and enhancing durability, with a simple structure. The chain guide has a guide shoe that slidably guides a chain, and a chain guide body that supports the guide shoe. A compression limiter having an attachment hole through which a mounting bolt for attaching the chain guide to an attachment target member passes is fitted in a fixing through hole extending through the chain guide body in a width direction thereof. A compression limiter holding mechanism is provided either to the compression limiter or to a hole rim part including the fixing through hole of the chain guide body in order to hold the compression limiter.