Range adjustable laser sight for bows
First Claim
1. A light beam sight for bows, comprising:
- a supporting plate;
a first arm having first and second opposed ends and rotationally coupled to the supporting plate by a first pivot located near the first end of the first arm and having a second pivot proximate the second end of the first arm;
a second arm having first and second opposed ends and rotationally coupled to the second pivot of the first arm at a first location proximate the first end of the second arm, and having a third pivot proximate the second end of the second arm;
a third arm having first and second opposed ends and rotationally coupled to the third pivot near the first end of the third arm and a fourth pivot for providing rotational coupling of the third arm to the supporting plate, the fourth pivot being located between the third pivot and the second end of the third arm; and
a light emitting device coupled to the first arm for projecting a light beam toward a desired target, the direction of the light beam being adjusted by rotation of the third arm around the fourth pivot.
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Accused Products
Abstract
An adjustable laser beam sight comprises a supporting plate and first, second and third serially arranged and rotationally coupled levers mounted on the supporting plate by two pivots. The first pivot rotationally couples the first lever to the supporting plate and the second pivot rotationally couples the third lever to the supporting plate. A laser beam emitting device is attached to the first lever. Rotation of the third lever, acting through the second lever, imparts a change in direction of the first lever and the laser beam. A range scale with its reference center substantially at the second pivot is provided on the supporting plate. An indicator on the third lever moves across the range scale as the third lever is moved to adjust the aim of the laser beam, thereby indicating a range setting.
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Citations
19 Claims
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1. A light beam sight for bows, comprising:
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a supporting plate; a first arm having first and second opposed ends and rotationally coupled to the supporting plate by a first pivot located near the first end of the first arm and having a second pivot proximate the second end of the first arm; a second arm having first and second opposed ends and rotationally coupled to the second pivot of the first arm at a first location proximate the first end of the second arm, and having a third pivot proximate the second end of the second arm; a third arm having first and second opposed ends and rotationally coupled to the third pivot near the first end of the third arm and a fourth pivot for providing rotational coupling of the third arm to the supporting plate, the fourth pivot being located between the third pivot and the second end of the third arm; and a light emitting device coupled to the first arm for projecting a light beam toward a desired target, the direction of the light beam being adjusted by rotation of the third arm around the fourth pivot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A laser sight for bows, comprising:
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a support means for coupling the laser sight to the bow; first lever rotationally coupled near a first end by a first pivot to the support means and having near an opposed second end a second pivot; second lever rotationally coupled near a first end to the first lever by the second pivot, and having near an opposed second end a third pivot; third lever having a length L and rotationally coupled near a first end to the second lever by the third pivot and rotationally coupled to the support means by a fourth pivot, the third and fourth pivots being separated on the third lever by a distance D smaller than L; and a laser beam emitting device attached to the first lever. - View Dependent Claims (12, 13, 14, 15)
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- 16. An adjustable light beam sight, comprising, a supporting plate and first, second and third serially arranged and rotationally coupled levers mounted on the supporting plate by first and second pivots, the first pivot rotationally coupling the first lever to the supporting plate and the second pivot rotationally coupling the third lever to the supporting plate, the second lever being allowed to rotate and translate with respect to the support plate in response to rotation of the first and third levers around, respectively, the first and second pivots, a light beam emitting device coupled to the first lever so that motion of the third lever imparts a change in direction of the light beam, and a range scale coupled to the supporting plate and referenced substantially to the second pivot, wherein the second lever is rotationally coupled to the first and third levers by, respectively, third and fourth pivots located adjacent respective ends of the second lever.
Specification