Interconnected c-clamps and tensioning means therefor

• US 4,753,425 A
• Filed: 07/18/1986
• Issued: 06/28/1988
• Est. Priority Date: 07/18/1986
• Status: Expired due to Fees

• Current Assignee: Tai-Her Yang
• Original Assignee: Tai-Her Yang
• Inventors: Yang, Tai-Her
• Primary Examiner(s): Watson, Robert C.
• Application Number:
  US06/886,901
• Time in Patent Office: 711 Days
• Field of Search: 269/45, 269/88, 269/249, 269/97, 269/98, 269/99, 269/100, 269/91, 269/93, 269/152-156, 269/90 D, 248/231.7, 248/229, 24/341, 24/486, 24/525
• US Class Current: 269/45
• CPC Class Codes: B25B 5/003 Combinations of clamps
• CPC Class Codes: B25B 5/101 C-clamps
• CPC Class Codes: B25B 5/14 Clamps for work of special profile using chains or strips B25B1/205
• CPC Class Codes: B25B 5/142 for windows and frames
• CPC Class Codes: B25B 5/145 for plates

Abstract

A C-clamp adapted for interconnection to other like C-clamps and to other tensioning devices by means of at least one threaded adapter. The clamp includes a substantially L-shaped main body having a threaded clamping rod. The main body includes three legs. The third leg is intermediate between the first and second legs and disposed at substantially a 45 degree angle thereto. The second leg has a truncated end and a blind bore therein. The first and second legs have tapped apertures perpendicular to the plane of the main body. The third leg has a tapped aperture formed therein along an axis which is within the plane of the main body portion of the clamp at substantially a 45 degree angle with respect to the blind bore. Threaded adaptors and other tensioning devices are interconnected between individual C-clamps permitting intricate clamping arrays for objects or workpieces having complex shapes.

Claims

1. A C-clamp adapted for interconnection to other like C-clamps and to other tensioning devices by means of at least one threaded adapter and comprising, in combination, a substantially L-shaped main body portion including a first leg having a boss portion provided with a threaded recess therein, a threaded clamping rod received in the threaded recess, the threaded rod having a pair of ends, one of which ends is provided with a handle and the other of which ends is provided with a clamping member, the main body portion further including a second leg having a longitudinal axis substantially parallel to the threaded rod, the main body portion further including a third leg intermediately of the first and second legs and disposed substantially at a 45°

angle thereto, respectively, the second leg being truncated and having a free end portion provided with a blind bore formed therein substantially coincident with the longitudinal axis of the second leg, whereby the C-clamp may be interconnected to other like C-clamps by means of at least one threaded adapter, at least one of the first and second legs further having a tapped aperture formed therein on an axis which is perpendicular to the plane of the main body portion, and the third leg having a tapped aperture formed therein along an axis which is within the plane of the main body portion of the C-clamp at substantially a 45°

angle with respect to said blind bore, to other like C-clamps and to other tensioning devices with an externally threaded adapter.

2. The combination of claim 1, wherein both the first and second legs each has a tapped aperture formed therein about respective axes which are perpendicular to the plane of the main body portion of the C-clamp.