Patent ID: 11959292
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A scaffolding tube clamp comprising:
at least one pair of body portions, each pair of body portions comprising a base and a top, each base and top having a first end hingedly connected to one another to permit the base and top to be capable of being rotatably received about an exterior surface of a scaffolding tube,
a rotatable bolt engageable with a first hole extending through a first flange positioned at a second end of the top and engageable with a second hole extending through a second flange positioned at a second end of the base, when the bolt is engaged with the first and second holes rotation of the bolt in a first direction connects the second ends of the top and base and moves the second ends closer to one another in a clamping arrangement about a scaffolding tube received therebetween, and rotation of the bolt in a second opposite direction releases the connection between the second ends of the top and the base permitting their rotational movement about the hinged connection,
the bolt having a head and a threaded shaft, the shaft having a first threaded portion with a first thread located adjacent to the head, the shaft having a second threaded portion with a second thread at a lower end of the bolt, the first hole having threads complimentary to the first thread and the second hole having threads complimentary to the second thread, the first and second threads having different pitches, the first and second threads having opposite pitch directions,
wherein the second thread comprises an indexing tab at the lower end of the bolt, the indexing tab receivable through a complimentary shaped indexing opening within the second hole when the lower end of the bolt is initially and partially received within the second hole, the indexing tab aligning the second thread for engagement with the threads in the second hole when the head is set-off from the first flange and when the first threaded portion is only partially engaged with the threads in the first hole.