De-cocking mechanism for a bow

Patent metadata

Field	Value
Publication number	US-9383159-B2
Application number	US-201314071723-A
Country	US
Kind code	B2
Filing date	Nov 5, 2013
Priority date	Mar 13, 2013
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

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.

First claim

What is claimed is:

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 actua

Assignees

• Ravin Crossbows Llc

Inventors

• Pulkrabek Larry
• Engstrom Jay
• Yehle Craig Thomas
• Pellett Aaron
• Haas Matthew P
• Hunt Fred H

Classifications

• F41B5/1469 Primary

  Bow-string drawing or releasing devices (F41B5/1473 takes precedence) · CPC title

• F41B5/123

  Compound crossbows · CPC title

• F41A19/06

  Mechanical firing mechanisms, {e.g. counterrecoil firing, recoil actuated firing mechanisms}(F41A19/01 - F41A19/05, F41A19/59 take precedence) · CPC title