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US 12,515,929 B2Granted
Chain drive comprising double chain wheel, sling device, and chain drive system
Assigneepewag austria GmbH
InventorÄgyd Pengg
Life of this patent
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Assigneepewag austria GmbH
InventorÄgyd Pengg
Estimating the term…
A chain drive for chain hoist with two link chains including two chain wheels arranged adjacent on a shaft and in torque-proof connection to one another, each chain wheel being used to guide a section of link chain having alternately horizontal and vertical links, namely, with pockets for accommodating horizontal links and with a groove extending in the circumferential direction for accommodating vertical links. The chain wheels have a fixed angular offset smaller than the angular pitch between two successive chain links of a chain wheel. This chain drive forms a chain drive system together with a sling for two link chains running parallel, wherein the sling includes, at one end, a connecting part for a load and, opposite thereto, two adjacently arranged connection portions for respective end links of either link chain, wherein the connection portions are offset from one another along the load direction with a linear offset smaller than the chain pitch along the load direction.
A chain drive (D1, D6) for a chain hoist with two link chain strands (S11, S12), the chain drive comprising:
A sling device for a chain suspension of two link chain strands running parallel, wherein the sling device (A1) is configured with regard to an intended load direction (b) and comprises, at one end, a connecting part (B1) for attaching a load and, at an opposite end (C) thereto when viewed in the intended load direction, two connection portions (C11, C12) each of which is configured to be directly, and simultaneously with the other, secured to an end link of a respective one of the two link chain strands, wherein the connection portions are arranged offset with respect to one another along the intended load direction with a linear offset (v) when the intended load direction is parallel to a direction in which the two link chain strands extend, said linear offset being smaller than a chain pitch (u1) along the intended load direction (b).
A sling device for a chain suspension of two link chain strands running parallel, wherein the sling device (A1) is configured with regard to an intended load direction (b) and comprises, at one end, a connecting part (B1) for attaching a load and, at an opposite end (C) thereto when viewed in the load direction, two connection portions (C11, C12) configured for attaching respective end links of the link chain strands, wherein the connection portions are arranged offset with respect to one another along the load direction with a linear offset (v), said linear offset being smaller than a chain pitch (u1) along the load direction (b), wherein each connection portion (C71, C72;
Dependencies are inferred from the claim text.