초록 ▼

A pair of joint halves each include substantially cylindrical joint portions and end portions. Aligned openings are formed through the joint portions to receive therethrough a connecting pin which connects the joint halves together into a articulable joint. The connecting pin includes teeth on its o

A pair of joint halves each include substantially cylindrical joint portions and end portions. Aligned openings are formed through the joint portions to receive therethrough a connecting pin which connects the joint halves together into a articulable joint. The connecting pin includes teeth on its outer surface sized to mate with teeth formed in the aligned openings of the joint halves. The connecting pin has a locked condition wherein its teeth mate with the teeth of both the joint halves and thus prevent relative rotation thereof, and an unlocked condition wherein its teeth are not in mating engagement with the teeth of one of the joint halves thus permitting relative rotation of one joint half with respect to the other. In one embodiment a spring urges the connecting pin into its locked condition and an operating button, disposed at one end of the connecting pin, facilitates movement of the pin so that its teeth move out of mating engagement with the teeth on one of the joint halves. In another embodiment, a spring urges the connecting pin into a position wherein its teeth are out of mating engagement with the teeth on one joint half; while an operating button connected to an end of the connecting pin facilitates movement of the connecting pin so that its teeth mate with the teeth on both joint halves and latch the connecting pin in place.

대표청구항 ▼

An articulable joint; comprising: (a) a first joint half formed with a first contact surface; (b) a second joint half formed witth a second contact surface; (c) said first contact surface and said second contact surface each being formed to be disposed one adjacent the other and so that said first j

An articulable joint; comprising: (a) a first joint half formed with a first contact surface; (b) a second joint half formed witth a second contact surface; (c) said first contact surface and said second contact surface each being formed to be disposed one adjacent the other and so that said first joint half and said second joint half together form a joint; (d) a first passageway extending through said first joint half and said second joint half; (e) connecting pin means extending through said first passageway and connecting said first joint half and said second joint half together; (f) said connecting pin means having an unlocked condition wherein said first joint half and said second joint half may be rotated one with respect to the other about a predetermined axis of rotation passing through said connecting pin means, and a locked condition wherein said first joint half and said second joint half are locked against such relative rotation; (g) locking means carried by said first joint half, said second joint half, and said connecting pin means and coacting therewith in said locked condition for said connecting pin means to so lock said first joint half and said second joint half against said relative rotation; (h) said connecting pin means including biasing means for urging said connecting pin means into one of said conditions; (i) said connecting pin means further including operating button means for moving said connecting pin means into the other of said conditions; (j) a first hollow formed in said first joint half, and a second hollow formed in said second joint half, said first hollow and said second hollow being disposed one adjacent the other when said first contact surface of said first joint half is disposed adjacent said second contact surface of said second joint half; (k) said connecting pin means extending through said first hollow and said second hollow with clearance when so disposed one adjacent the other, so that a portion of said so disposed first hollow and second hollow remain unobstructed.