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US 5,033,514 AGranted
Fiber reinforced plastic accelerating lever for a projectile loom
AssigneeSulzer Brothers Limited
InventorsChristian Just, Jochen Muller, Andreas Hunziker
Life of this patent
Estimating the term…
Abstract
The low-inertia and high-strength accelerating lever comprises a hub part, arm and end part made of a thermoplastics reinforced by high-strength fibers. The lever is built up from a number of layers in the form a Prepregs or semifinisheds, which are placed one on another, the layers having different fiber orientations and extending substantially parallel to the movement plane. Longitudinal components of the fiber orientations predominate in the arm with a gradual transition to the hub part and end part; the hub part and end part having a substantially isotropic distribution of the fiber orientations.
Claims21
A light weight high-mechanical strength accelerating lever for a loom comprising
- a hub part having a plurality of parallel layers of fiber-reinforced plastic, each layer having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer;
- an arm extending from said hub part and having a plurality of parallel layers of fiber-reinforced plastic of a different number from said layers of said hub part, each said layer of said arm having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said arm;
- and
- an end part extending from said arm and having a plurality of parallel layers of fiber-reinforced plastic, each said layer of said end part having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said end part.
1 more element
An accelerating lever for a loom comprising
- a plurality of laminations of fiber-reinforced plastic disposed in overlying relation to define a hub part, an arm extending from said hub part along a longitudinal axis and an end part connected to said arm with said hub part having a greater number of laminations than said arm;
- each said lamination having a plurality of parallel fibers with the fibers of at least some of said laminations being disposed in angular relation to the fibers of a contiguous lamination.
In combination
- a lever having a plurality of laminations of fiber-reinforced plastic disposed in overlying relation to define a hub part of a predetermined thickness, an arm extending from said hub part along a longitudinal axis and an end part connected to said arm of a thickness less than said thickness of said hub part;
- each said lamination having a plurality of parallel fibers with the fibers of at least some of said laminations being disposed in angular relation to the fibers of a contiguous lamination;
- and
- a tapered ring disposed in said hub part for securing said lever to a shaft.
1 more element
In combination
- a lever having a plurality of laminations of fiber-reinforced plastic disposed in overlying relation to define a hub part of a predetermined thickness, an arm extending from said hub part along a longitudinal axis and an end part connected to said arm of a thickness less than said thickness of said hub part;
- each said lamination having a plurality of parallel fibers with the fibers of at least some of said laminations being disposed in angular relation to the fibers of a contiguous lamination;
- and
- a conical disk adjacent said hub part for mounting on a flanged cylindrical hub.
1 more element
A light weight high-mechanical strength accelerating lever for a loom comprising
- a hub part having a plurality of parallel layers of fiber-reinforced plastic, each layer having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer;
- an arm extending from said hub part and having a plurality of parallel layers of fiber-reinforced plastic, each said layer of said arm having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said arm;
- and
- an end part extending from said arm and having a plurality of parallel layers of fiber-reinforced plastic, each said layer of said end part having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said end part, said end part having an eye offset from a central axis of said arm and said end part for rotatably receiving a pin.
1 more element
A light weight high-mechanical strength accelerating lever for a loom comprising
- a hub part having a plurality of parallel layers of fiber-reinforced plastic, each layer having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer;
- an arm of box-section extending from said hub part and having a plurality of parallel layers of fiber-reinforced plastic, each said layer of said arm having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said arm;
- and
- an end part extending from said arm and having a plurality of parallel layers of fiber-reinforced plastic, each said layer of said end part having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said end part.
1 more element
A light weight high-mechanical strength accelerating lever for a loom comprising
- a hub part having a plurality of parallel layers of fiber-reinforced plastic of a thickness of at most 0.3 millimeters, each layer having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer;
- an arm extending from said hub part and having a plurality of parallel layers of fiber-reinforced plastic, of a thickness of at most 0.3 millimeters, each said layer of said arm having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said arm;
- and
- an end part extending from said arm and having a plurality of parallel layers of fiber-reinforced plastic of a thickness of at most 0.3 millimeters, each said layer of said end part having a plurality of parallel fibers with the fibers of at least some layers being disposed in angular relation to the fibers of a contiguous layer in said end part.
1 more element
Dependencies are inferred from the claim text.