Attachment Members for a Slingbar Component of a Lift System
AssigneeLiko Research & Development AB
InventorsAndrew Dole, Chris L. Hildenbrand
Life of this patent
Estimating the term…
Abstract
A slingbar includes a sling attachment member. The sling attachment member includes a frame including a base having a top end and a bottom end, and a hook extending from the bottom end to a hook terminus. The hook terminus and the top end of the base define an opening. The hook, base, and opening bound an interior of the attachment member. A closure element includes an outboard gate hinged to the hook terminus and an inboard gate hinged to the base. The gates have a default state in which each gate extends laterally only part way across the opening.
Claims33
A slingbar having a sling attachment member, the sling attachment member comprising:
- a frame comprising a base having a top end and a bottom end, and a hook extending from the bottom end to a hook terminus, the hook terminus and the top end of the base defining an opening, and the hook, the base, and the opening bounding an interior of the sling attachment member;
- and
- a closure element comprising an outboard gate hinged to the hook terminus and an inboard gate hinged to the base, the outboard gate and the inboard gate each having a default state in which each gate extends laterally only part way across the opening.
A slingbar comprising a sling attachment member, the sling attachment member comprising:
- a frame comprising a base with a top end and a bottom end, an elbow laterally spaced from the base and having a bottom end and a terminus, and a bottom segment joining the bottom end of the base to the bottom end of the elbow, wherein the top end of the base and the terminus define a laterally extending opening;
- and
- a closure element comprising an actuator wing and a closure wing, the closure element hinged to the top end of the base at a juncture of the actuator wing and the closure wing, the closure element positionable in:
- A) an open orientation in which at least part of the actuator wing spans across the laterally extending opening;
- and
- B) a closed orientation in which at least part of the closure wing spans across the laterally extending opening.
A slingbar having a sling attachment member, the sling attachment member comprising:
- a fixed orientation lower jaw comprising an upper surface comprising an upper inboard segment, an upper outboard segment, and an upper intermediate segment laterally between the upper inboard segment and the upper outboard segment;
- a variable orientation upper jaw comprising a lower surface comprising a lower inboard segment, a lower outboard segment, and a lower intermediate segment laterally between the lower inboard segment and the lower outboard segment;
- the upper inboard segment comprising a descending contour with increasing outboard displacement, and the lower inboard segment comprising an ascending contour with increasing outboard displacement, wherein the descending contour and the ascending contour are adapted so that an object urged laterally outwardly can separate the upper intermediate segment and the lower intermediate segment from each other and pass outwardly between the upper intermediate segment and the lower intermediate segment.
A slingbar comprising:
- a sling attachment member comprising:
- a frame, a portion of which defines an opening, the frame and opening defining an interior of the sling attachment member;
- and
- a closure element;
- and
- an actuating mechanism comprising:
- a cam;
- and
- a linkage arranged to be driven by the cam and to operate the closure element in response to motion of the cam thereby causing the closure element to block or expose the opening.
Dependencies are inferred from the claim text.