Power transmission mechanism
AssigneeMitsuboshi Belting Ltd.
InventorsHiroshi Takano, Shinichi Takagi, Akihiro Fujita
Life of this patent
Estimating the term…
Abstract
A power transmission mechanism (10) having a V-belt (11) provided with transverse reinforcing elements (22). The V-belt, in the illustrated embodiment, defines a cog belt wherein the reinforcing elements are disposed within the cogs (15) thereof to have opposite end surfaces (23) exposed at the side edge surfaces (21) of the belt. A thin film of lubricating fluid (27) is provided on the exposed end surfaces of the reinforcing elements for improved long troublefree operation of the mechanism. Different structures for providing the thin film of lubricating fluid are disclosed. In the illustrated embodiments, the thin film extends along the entire side edge surfaces of the V-belt.
Claims19
In a V-belt power transmission mechanism having power transmitting pulleys provided with belt receiving peripheral grooves defining opposed sidewalls, and a V-belt entrained about said pulleys and having exposed side edge surfaces comprising at least in part rubber surfaces facially engaging said groove sidewalls to have functional drive relationship therewith, the improvement comprising:
- means for providing a thin film of lubricant fluid between said belt side edge surfaces and said groove sidewalls for reducing the coefficient of friction therebetween are reducing noise and heating of the V-belt.
In a V-belt power transmission mechanism having power transmitting pulleys provided with belt receiving peripheral grooves defining opposed sidewalls, and a V-belt entrained about said pulleys and having side edge rubber surfaces facially engaging said groove sidewalls to have functional drive relationship therewith, the improvement comprising:
- reinforcement elements extending transversely across said V-belt and defining ends exposed at said side edge rubber surfaces and engaging said groove sidewalls;
- and
- means for providing a thin film of lubricant fluid between said belt side edge surfaces and reinforcement element ends, and said groove sidewalls for reducing the coefficient of friction therebetween and reducing noise and heating of the V-belt.
In a V-belt power transmission mechanism having power transmitting pulleys provided with belt receiving peripheral grooves defining opposed sidewalls, and a V-belt entrained about said pulleys and having side edge rubber surfaces facially engaging said groove sidewalls, the improvement comprising:
- reinforcement elements comprising metal rods extending fully transversely across said V-belt and defining ends exposed at said side edge rubber surfaces and engaging said groove sidewalls;
- and
- means for providing a thin film of lubricant fluid between said belt side edge surfaces and reinforcement element ends, and said groove sidewalls for reducing the coefficient of friction therebetween and reducing noise and heating of the V-belt.
In a V-belt power transmission mechanism having power transmitting pulleys provided with belt receiving peripheral grooves defining opposed sidewalls, and a V-belt entrained about said pulleys and having side edge surfaces, the improvement comprising:
- metal elements in said V-belt extending fully thereacross exposed at said side edge surfaces so as to engage the pulley groove sidewalls;
- and
- means for providing a thin film of lubricant fluid between said metal elements and said pulley groove sidewalls for minimizing wear of the pulley groove sidewalls by said elements during operation of the power transmission mechanism.
Dependencies are inferred from the claim text.