Multiple Knob Turret

• US 20190316877A1
• Filed: 06/03/2019
• Published: 10/17/2019
• Est. Priority Date: 04/18/2012
• Status: Active Grant

• Current Assignee: Sheltered Wings Incorporated
• Original Assignee: Sheltered Wings Incorporated
• Inventors: Hamilton, Samuel J.
• Granted Patent: US 10,690,445 B2
• Time in Patent Office: Days
• CPC Class Codes: F41G 1/38 Telescopic sights specially adapted for smallarms or ordnance telescopic sights in general G02B; Supports or mountings therefor
• CPC Class Codes: G02B 23/16 Housings; Caps; Mountings; Supports, e.g. with counterweight
• CPC Class Codes: G02B 7/004 Manual alignment, e.g. micromanipulators

Abstract

An optic device turret for adjusting the optical element of the optic device with at least two knobs that are each movable between a first position wherein the knob is not rotatable and a second position wherein the knob can be rotated. The access to and rotation of both knobs can be accomplished without the use of tools. The rotation of each knob adjusts the optical element. A spiral cam mechanism is engaged with the turret to define a maximum and minimum adjustment of the optical element. A rotation indicator displays the amount a knob has been rotated.

Claims

1. A sighting device with a turret comprising:

a movable optical element;

a screw engaged with the movable optical element such that rotation of the screw causes movement of the movable optical element;

an outer knob operably connected to the screw such that rotation of the outer knob causes rotation of the screw; and

a top knob movable between a raised position and a lower position and engaged with the movable optical element such that rotation of the top knob causes rotation of the screw;

wherein when the top knob is in the raised position, the top knob can rotate and when the top knob is in the lower position, the top knob cannot rotate.

2. The turret of claim 1 wherein the top knob has a first plurality of teeth and the outer knob has an interior cavity with a second plurality of teeth and wherein when the top knob is in the lower position, the first plurality of teeth interact with the second plurality of teeth to prevent the top knob from rotating.

3. The turret of claim 1 wherein the top knob further comprises:

a lock gear;

a display; and

a dial;

wherein the display is releasably retained to the lock gear by the dial such that the display, dial and lock gear rotate together.

4. The turret of claim 3 wherein the display can be removed from the top knob by removing the dial from the lock gear.

5. The turret of claim 4 wherein the dial is in threaded engagement with the top locking gear.

6. The turret of claim 5 wherein the lock gear has an exterior perimeter with a first plurality of teeth and the outer knob has an interior cavity with a second plurality of teeth and wherein when the top knob is in the lower position, the first plurality of teeth interact with the second plurality of teeth to prevent the top knob from rotating.

7. The turret of claim 3 wherein the outer knob has a first indicia of scale and the display has second indicia of scale and wherein the first indicia of scale is different than the second indicia of scale.

8. The turret of claim 1 wherein the outer knob has a first outer perimeter and the top knob has a second outer perimeter and a predetermined distance of travel for the first outer perimeter rotates the screw fewer degrees than the same predetermined distance of travel for the second outer perimeter.

9. The turret of claim 1 further comprising a second top knob movable between a raised position and a lower position and engaged with the screw such that rotation of the second top knob causes movement of the movable optical element and wherein when the second top knob is in the raised position, the second top knob can rotate and when the second top knob is in the lower position, the second top knob cannot rotate.

10. The turret of claim 9 wherein rotation of the second top knob does not cause rotation of the top knob.

11. The turret of claim 10 wherein rotation of the top knob does not cause rotation of the second top knob.

12. The turret of claim 9 wherein the second top knob further comprises:

a second lock gear;

a second display; and

a second dial;

wherein the second display is releasably retained to the second lock gear by the second dial such that the second display, second dial and second lock gear rotate together.

13. The turret of claim 12 wherein the second display can be removed from the second top knob by removing the second dial from the second lock gear.

14. A sighting device comprising:

a sighting device body;

a movable optical element connected to the sighting device body;

a turret having a bore, an outer knob and a top knob; and

a screw engaged with the movable optical element to move the movable optical element and at least partially received in the bore such that the screw is rotated by rotating the outer knob and is rotated by rotating the top knob;

wherein the top knob is movable between a locked position wherein the top knob cannot rotate and an unlocked position wherein the top knob can rotate.

15. The sighting device of claim 14 wherein the sighting device is a rifle scope.

16. The sighting device of claim 14 wherein the turret further comprises:

a cam disc connected to the screw and defining a channel around the screw terminating at first and second ends; and

a cam pin connected to the sighting device body and at least partially engages the channel;

wherein each of the first and second ends are at different radially distances from the screw and limit rotation of the outer knob.

17. The sighting device of claim 16 wherein the channel at least partially overlaps itself.

18. The sighting device of claim 16 further comprising a rotation indicator connected to the cam pin, wherein the rotation indicator moves radially outward from the turret when the outer knob is rotated.

19. The sighting device of claim 14 wherein the outer knob is movable between a locked position wherein the outer knob cannot rotate and an unlocked position wherein the outer knob can rotate.

20. The sighting device of claim 14 wherein the turret is an elevation turret.

21. The sighting device of claim 14 wherein the turret is a windage turret.

22. The sighting device of claim 14 wherein the top knob adjusts the movable optical element for a first condition selected from the group consisting of bullet drag, bullet drop, bullet path, altitude, temperature, wind drift, pressure, humidity, spin drift, altitude, gravity, latitude, coriolis effect.

23. The sighting device of claim 22 wherein the outer knob adjusts the movable optical element for a second condition selected from the group consisting of bullet drag, bullet drop, bullet path, altitude, temperature, wind drift, pressure, humidity, spin drift, altitude, gravity, latitude, coriolis effect;

wherein the first condition is not the same as the second condition.

24. The sighting device of claim 14 wherein the turret further comprises a second top knob movable between a locked position and an unlocked position and engaged with the screw such that rotation of the second top knob causes movement of the movable optical element and wherein when the second top knob is in the unlocked position, the second top knob can rotate and when the second top knob is in the locked position, the second top knob cannot rotate.

25. The sighting device of claim 24 wherein the top knob adjusts the movable optical element for a first condition, the outer knob adjusts the movable optical element for a second condition and the second top knob adjusts the movable optical element for a third condition;

wherein each of the first, second and third conditions selected from the group consisting of bullet drag, bullet drop, bullet path, altitude, temperature, wind drift, pressure, humidity, spin drift, altitude, gravity, latitude, coriolis effect; and

wherein the first condition is not the same as the second condition and the first condition is not the same as the third condition.

26. A sighting device comprising:

a turret having at least an outer knob and a tool-less top knob;

wherein the tool-less top knob is movable between a locked position wherein the top knob cannot rotate and an unlocked position wherein the tool-less top knob can rotate; and

wherein the rotation of the tool-less top knob may be selectively limited.

27. The sighting device of claim 26 wherein rotating the tool-less top knob moves an optical element to compensate for a condition and wherein the condition is changed by tool-less adjustment of the tool-less top knob.