Third-axis leveling block for a bow sight
AssigneeC.S. Gibbs Corp.
InventorCharles Gibbs
Life of this patent
Estimating the term…
Abstract
The present invention provides a “third-axis” leveling block for use with an archery sight. The third-axis leveling block holds an archery sighting device (e.g., a scope or a pin sight) as know in the art. The leveling block adjusts the position of the sight in two axes by means of cams. One of the cams adjusts the sighting device to the archer's preferred cant. The other cam adjusts the angle of the sighting device with respect to the bow to keep the archer's cant consistent when the bow is raised or lowered for shooting at targets at any elevation, above, below, or on the same level as the archer.
Claims24
A third-axis leveling block for use with an archery bow, the third-axis leveling block comprising:
- a mounting block with first and second holes therein;
- a top-hat block with a first round hole and a first elongated hole therein and with a second round hole and a second elongated hole therein;
- a first screw passing through the first round hole of the top-hat block and into the first hole of the mounting block;
- a first cam with a hole therein;
- a second screw passing through the first elongated hole of the top-hat block, through the hole of the first cam, and into the second hole of the mounting block, the first and second screws attaching the top-hat block to the mounting block such that the top-hat block is pivotable about an axis of the first screw and is pivotable by rotation of the first cam about the second screw;
- a second cam with a hole therein;
- a clamp assembly with first and second holes therein;
- a third screw passing through the second round hole of the top-hat block and into the first hole of the clamp assembly;
- a fourth screw passing through the second elongated hole of the top-hat block, through the hole of the second cam, and into the second hole of the clamp assembly, the third and fourth screws attaching the clamp assembly to the top-hat block such that the clamp assembly is pivotable about an axis of the third screw and is pivotable by rotation of the second cam about the fourth screw.
A sight for an archery bow, the sight comprising:
- an elongated support element attachable to the archery bow and extending outwardly from the archery bow in the general direction of a target;
- a generally vertically extending frame attached to the elongated support element;
- a generally vertically extending first lead screw rotatably supported by the frame;
- an elevation block embracing the first lead screw and movable vertically therealong;
- a generally horizontally extending second lead screw rotatably supported by the elevation block;
- a windage block embracing the second lead screw and movable transversally therealong relative to the elevation block;
- a third-axis leveling block attached to the windage block;
- and
- a sighting device attached to the third-axis leveling block.
A third-axis leveling block for use with an archery bow, the third-axis leveling block attachable to a bow-sight support structure, the third-axis leveling block configured for holding a sighting device, the third-axis leveling block comprising:
- a mounting block configured for attaching to the bow-sight support structure;
- a top-hat block pivotably attached to the mounting block, the top-hat block pivotable by rotation of a first cam;
- and
- a clamp assembly pivotably attached to the top-hat block, the clamp assembly pivotable by rotation of a second cam, the clamp assembly configured for holding the sighting device.
Dependencies are inferred from the claim text.