Apparatus and method for clamping
The preferred embodiments of the present invention provide an apparatus structured and arranged to securely clamp an object to a support structure. The most preferred embodiments of the present invention comprise a clamping apparatus configured to secure a long rifle or other firearm to a tripod, using a standard camera mounting bracket. In this embodiment, the clamping apparatus comprises a base with a pair of substantially L-shaped interlocking brackets and a pair of spring-loaded cam locking mechanisms used to fix the L-shaped brackets in position. Additional preferred embodiments of the present invention comprise rubber pads or other protective material affixed to the surface of the clamping apparatus to minimize damage to the object being clamped. A method of using the clamping apparatus is also disclosed.
1. Apparatus for releasably attaching a firearm to a camera stand having a standard camera tripod mount, the firearm having a barrel and longitudinal axis parallel to the barrel, the apparatus comprising:
a single U-shaped clamp having a width and a depth sufficient to rigidly clamp the firearm along the sides thereof at a single location along the length of the firearm, said U-shaped clamp comprising;
(a) a first jaw member comprising a bracket having a substantially L-shaped profile when viewed along an axis parallel to the longitudinal axis of the firearm, the first jaw member having a bottom portion and a side portion;
(b) a second jaw member comprising a bracket having a substantially L-shaped profile when viewed along an axis parallel to the longitudinal axis of the firearm, the second jaw member having a bottom portion and a side portion, the side portions of the first and second jaw members forming substantially vertical side walls disposed in a spaced apart configuration defining a gap therebetween, the bottom portion of the second jaw member including a protruding portion that slidingly engages a corresponding opening formed in the bottom portion of the first jaw member, the protruding portion and corresponding opening cooperating to maintain the side portions of the first and second jaw members in a substantially parallel orientation while enabling the gap between the side portions of the first and second jaw members to be increased and decreased;
(c) the bottom portion of one of the first jaw member and the second jaw member comprising a threaded aperture for attaching the first and second jaw members to the standard camera tripod mount, the aperture being positioned so that the standard camera tripod mount is attached at a position located between the first and second jaw members; and
(d) an adjustable fastener holding the side portions of the first and second jaw members together, the adjustable fastener including a handle capable of being manipulated by one hand of a user to tighten the first and second jaw members for securing the firearm between the first and second jaw members.
2. The apparatus of claim 1 , wherein the side portions of the first and second jaw members each define an inward-facing surface and wherein the first and second jaw members further comprise a cushioning layer on the inward-facing surface of each of the first and second jaw members.
3. The apparatus of claim 1 , further comprising:
a resilient member urging the side portions of the first and second jaw members apart to automatically open the U-shaped clamp to release the firearm when the adjustable fastener is loosened.
4. The apparatus of claim 1 , wherein:
the adjustable fastener comprises a threaded fastener coupled to a cam member.
5. The apparatus of claim 1 , wherein:
the adjustable fastener comprises a headless screw with a threaded body portion and a cam-locking head pivotably attached to the headless screw, the threaded body portion engaging corresponding threads in the first jaw member and the cam-locking head having a cam surface bearing on a bearing surface of the second jaw member.
6. The apparatus of claim 3 , further comprising:
a second adjustable fastener holding the side portions of the first and second jaw members together; and
a second resilient member urging the side portions of the first and second jaw members apart.
7. The apparatus of claim 1 , further comprising:
a camera mounting plate for a quick-release head mount attached the bottom portion of one of the first jaw member and the second jaw member.