De-cocking mechanism for a bow

• US 9,383,159 B2
• Filed: 11/05/2013
• Issued: 07/05/2016
• Est. Priority Date: 03/13/2013
• Status: Active Grant

• Current Assignee: Ravin Crossbows LLC (The Kattegat Trust Co. Ltd.)
• Original Assignee: Ravin Crossbows LLC (The Kattegat Trust Co. Ltd.)
• Inventors: Pulkrabek, Larry, Engstrom, Jay, Yehle, Craig Thomas, Pellett, Aaron, Haas, Matthew P., Hunt, Fred H.
• Primary Examiner(s): Bumgarner, Melba
• Assistant Examiner(s): KLAYMAN, AMIR ARIE
• Application Number:
  US14/071,723
• Publication Number:
  US 20140261360A1
• Time in Patent Office: 973 Days
• US Class Current: 1/1
• CPC Class Codes: F41A 19/06 Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanismsF41A19/01 - F41A19/05, F41A19/59 take precedence
• CPC Class Codes: F41B 5/123 Compound crossbows
• CPC Class Codes: F41B 5/1469 Bow-string drawing or releasing devices F41B5/1473 takes precedence

Abstract

A de-cocking mechanism for a bow having an energy storage assembly mounted to a center support with a draw string that extends across the center support coupled to the energy storage assembly. The bow includes a trigger assembly that retains the draw string in a drawn configuration. The de-cocking mechanism includes a de-cocking actuator that automatically releases the draw string onto the de-cocking mechanism when the de-cocking mechanism engages with the trigger assembly. The user can then manually move the draw string from the drawn configuration to a released configuration. The de-cocking mechanism is preferably combined with a cocking mechanism.

Claims

1. A crossbow comprising:

an energy storage assembly mounted to a center support with a draw string that extends across the center support coupled to the energy storage assembly;

a trigger assembly including a catch moveable between a closed position that holds the draw string in a drawn configuration and an open position that releases the draw string to a released configuration, and a sear moveable between a cocked position that retains the catch in the closed position and a fire position that permits the catch to move to the open position to, release the draw string;

a dry fire lockout moveable between a lockout position that locks the sear in the cocked position and a disengaged position that permits the sear to move to the fire position;

a traveler comprising a guide that slides along the center support, channels configured to receive the draw string during movement between the drawn configuration and the released configuration, and a protrusion that moves the dry fire lockout to the disengaged position when the traveler is engaged with the trigger assembly; and

a de-cocking actuator attached to a traveler that is selectively positioned between an inactive position that does not release the draw string when the traveler engages with the trigger assembly, and an active position that moves the sear to the fire position when the traveler is engaged with the trigger assembly, whereby the de-cocking actuator releases the draw string onto the channels when the traveler engages with the trigger assembly so the user can move the draw string from the drawn configuration to the released configuration.

2. The crossbow of claim 1 comprising cords and handles attached to the traveler for a user to grip during cocking and de-cocking of the crossbow.

3. The crossbow of claim 1 wherein the draw string resides in the channels during movement of the draw string from the released configuration to the drawn configuration and into engagement with, the trigger assembly.

4. The crossbow of claim 1 wherein the de-cocking actuator is pivotally attached to the traveler and rotates around axis between the active position and the inactive position.

5. The crossbow of claim 1 wherein the catch is biased to the open configuration and the sear is biased to the cocked position.

6. The crossbow of claim 1 comprising a safety moveable between a safe position that locks the sear in the cocked position and a free position that permits the sear to move to the fire position.

7. The crossbow of claim 6 wherein the safety is moved from the free position to the safe position as the sear rotates to the cocked position during cocking of the crossbow.

8. A cocking and de-cocking system for a crossbow, the crossbow including an energy storage assembly mounted to a center support with a draw string that extends across the center support coupled to the energy storage assembly, and a trigger assembly including a catch moveable between a closed position that holds the draw string in a drawn configuration and an open position that releases the draw string to a released configuration, the trigger assembly including a sear moveable between a cocked position that retains the catch in the closed position and a fire position that permits the catch to move to the open position to release the draw string, and a dry fire lockout moveable between a lockout position that locks the sear in the cocked position and a disengaged position that permits the sear to move to the fire position, the cocking and dc-cocking system comprising:

a traveler comprising a guide that slides along the center support, channels configured to receive the draw string during movement between the drawn configuration and the released configuration, and, a protrusion that moves the dry fire lockout to the disengaged position when the traveler is engaged with the trigger assembly; and

a de-cocking actuator attached to a traveler, that is selectively positioned between an inactive position that does not release the draw string when the traveler engages with the trigger assembly, and an active position that moves the sear to the fire position when the traveler is engaged with the trigger assembly, whereby the de-cocking actuator releases the draw string onto the channels when the traveler engages with the trigger assembly so the user can move the draw string from the drawn configuration to the released configuration.

9. The cocking and de-cocking system of claim 8 comprising cords and handles attached to the traveler for a user to grip during cocking and de-cocking of the crossbow.

10. The cocking and de-cocking system of claim 8 wherein the draw string resides in the channels during movement of the draw string from the released configuration to the drawn configuration and into engagement with the trigger assembly.

11. The cocking and de-cocking system of claim 8 wherein the de-cocking actuator is pivotally attached to the traveler and rotates around axis between the active position and the inactive position.

12. The cocking and de-cocking system of claim 8 wherein the catch is biased to the open configuration and the sear is biased to the cocked position.

13. The cocking and de-cocking system of claim 8 comprising a safety moveable between a safe position that locks the sear in the cocked position and a free position the permits that sear to move to the fire position.

14. The cocking and de-cocking system of claim 13 wherein the safety is moved from the free position to the safe position as the sear rotates to the cocked position during, cocking of the crossbow.

15. A method for cocking and de-cocking a crossbow, the crossbow including an energy storage assembly mounted to a center support with a draw siring that extends across the center support coupled to the energy storage assembly, and a trigger assembly including a catch moveable between a closed position that holds the draw string in a drawn configuration and an open position that releases the draw string to a released configuration, the trigger assembly including a sear moveable between a cocked position that retains the catch in the closed position and a fire position that permits the catch to move to the open position to release the draw string, and a dry fire lockout moveable between a lockout position that locks the sear in the cocked position and a disengaged position that permits the sear to move to the fire position, the method comprising:

positioning a guide on a traveler on the center support;

positioning a de-cocking actuator attached to a traveler to an inactive position;

engaging the draw string with channels on the traveler;

moving the draw string and the traveler from the released configuration to the drawn configuration and into engagement with the trigger assembly so, a protrusion on the traveler moves the dry fire lockout to the disengaged position;

engaging the draw string with a projection on the catch to move the catch to the closed position, thereby securing the draw string in the drawn configuration;

biasing the sear to the cocked position to retain the catch in the closed position; and

disengaging the traveler from the cocked crossbow.

16. The method of claim 15 comprising moving a safe from a free position to a safe position as the sear rotates to the cocked position.

17. The method of claim 15 comprising the steps of:

positioning the guide on a traveler on the center support;

positioning the de-cocking actuator on the traveler to an active position;

moving the traveler into engagement with the trigger assembly;

engaging the de-cocking actuator with trigger assembly to move the sear to the fire position, thereby releasing the draw string onto the channels of the traveler; and

displacing the traveler in a controlled fashion from the drawing configuration to the released configuration to de-cock the crossbow.

18. The method of claim 15 comprising rotating the de-cocking actuator around an axis between the active position and the inactive position.

19. The method of claim 15 comprising moving a safety from a safe position to a free position before de-cocking the crossbow.