Mass transfer module attachable to a strip stop of an archery bow

A mass transfer module attachable to a string stop of an archery bow preferably includes a fastener, a clamp, a hole and at least one a weight component and a vibration dampening device. The clamp is located on one end of the mass transfer module and the threaded hole is located on an opposing end. The clamp is secured to a string stop rod by tightening the fastener. In an alternative embodiment, an extension rod may be used to extend the weight component and/or vibration dampening device away from a mass body of the mass transfer module. In an alternative embodiment, the hole may be replaced with a stop clamp. In another embodiment the mass transfer module may be pivotally secured to the string stop rod in two axes.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates generally to archery and more specifically to a mass transfer module attachable to a string stop of an archery bow, which includes an adjustable device that can alleviate imbalance and/or vibration caused by bow design or added accessories.

Discussion of the Prior Art

It appears that previous prior art does not disclose a mass transfer module attachable to a string stop of an archery bow string stop mounted device, which can be adjusted and configured in any plane and to any angle.

Accordingly, there is a clearly felt need for a mass transfer module attachable to a string stop of an archery bow, which includes an adjustable device that can alleviate imbalance and/or vibration caused by bow design or added accessories, and which can be adjusted and configured in any plane and to any angle.

SUMMARY OF THE INVENTION

The present invention provides a mass transfer module attachable to a string stop of an archery bow, which includes an adjustable device that can alleviate bow imbalance and/or vibration caused by bow design or added accessories. The mass transfer module attachable to a string stop of an archery bow (mass transfer module). The mass transfer module is attached to a string stop rod. The mass transfer module includes a threaded hole to threadably receive a weighted counter balance and/or a vibration dampening unit.

As the variations in bow designs are considerable, so are the preferred configurations of this invention, which will be individually described in the Brief Description of the Drawings as well as the Detailed Description of the Preferred Embodiments.

Accordingly, it is an object of the present invention to provide a mass transfer module, which includes an adjustable device that can alleviate bow imbalance and/or vibration caused by bow design or added accessories.

Finally, it is another object of the present invention to provide a mass transfer module, which can be adjusted and configured in any plane and to any angle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference now to the drawings, and particularly toFIG. 1, there is shown a mass transfer module (11) secured to an archery bow (19). A bow string (20) contacts a string stop dampener (18), which is attached at the end of a string stop rod/shaft (14). With reference toFIGS. 2-2a, the mass transfer module (11) preferably includes a mass body (35), a weight component (16) and a vibration dampening device (17). With reference toFIG. 4, the mass body (35) includes a clamp (13) and a threaded hole (15). The mass body (35) includes a lengthwise axis (37). The threaded hole (15) includes a lengthwise axis (39). The clamp (13) is located on one end of the mass body (35) and the threaded hole (15) is located on an opposing end. The clamp (13) is secured to a string stop rod (14) by tightening a fastener (12). The fastener (12) may be any suitable threaded fastener, such as a wing nut, a bolt, a cap screw or any other suitable threaded fastener. However, the string stop rod (14) or the bumper (18) must be removed to insert the string stop rod (14) through the clamp (13). The vibration dampening device (17) preferably includes a weight component (16) and a threaded member (30). However, the weight component (16) and a fastener (44) may be used without the vibration dampening device (17). The threaded member (30) of the vibration dampening device (17) is threadably retained in the threaded hole (15).

With reference toFIG. 3, a mass transfer module (11′) with an alternative embodiment of a clamp (32). The clamp (32) includes a clamp member (34) and the fastener (12). The clamp (32) may be secured to the string stop rod (14) without removal of the string stop rod (14) or a rubber bumper (18) as with the mass transfer module (11). With reference toFIG. 3a, a split bushing (21) is inserted into the clamp (13,32) to make-up for a string stop rod, which is much smaller than an opening in the clamp (13,32).

With reference toFIG. 4, a threaded shaft (36) extends from one end of an extension rod (22). The threaded shaft (36) is threaded into the threaded hole (15) of the mass transfer module (11). The vibration dampener (17) and/or the weight component (16) are preferably threadably retained in an opposing end of the extension rod (22). The extension rod (22) extends a length between the mass transfer module (11), the vibration dampener (17) and/or the weight component (16). The extension rod (22) can be manufactured in different lengths. The extension rod (22) can be of any length and also may be installed on reverse side of the mass transfer module (11), if required, for balance.

With reference toFIG. 5, a mass transfer module (11″) is secured to a string stop rod (14). The string stop rod (14) is secured to one end of a string stop extension bracket (23). The other end of the string stop extension bracket (23) is attached to a bow (19) with a screw fastener (24). The string stop rod (14) is inserted into a hole in the one end of the string stop extension bracket (23). An adjustment set screw (25) is used to allow axially adjustment of the string stop rod (14) relative to the string stop extension bracket (23). The mass transfer module (11″) includes the clamp (13) on one end and a stop clamp (26) on an opposing end. The stop clamp (26) includes a fastener (27). Due to the short length of the string stop rod (14), the extension rod (22) may be retained in the stop clamp (26). The extension rod (22) may be adjusted fore or aft as required. The extension rod (22) can be manufactured to various lengths depending on balancing requirements. The weight component (16) cab be installed on the extension rod (22) with a fastener (44) and/or the vibration dampener (17) can be installed on the extension rod (22) with the threaded member (30).

With reference toFIG. 6, a mass transfer module (11′″) includes a swivel arm (38) and a mass member (39). A threaded hole (40) is formed on one end of the mass member (39). The threaded hole (40) is to a lengthwise axis of the mass member (39). The swivel arm (38) includes a clamp member (42) and a lock screw (28). The clamp member (42) includes the fastener (12). The swivel arm (38) is secured to an opposing end of the mass member (39) with the lock screw (28). The mass transfer module (11′″) is attached to the string stop rod (14) with clamp member (42). The weight component (16) may be installed with the fastener (44) and/or the threaded member (30) of the vibration dampener (17) is threaded into the threaded hole (40). The mass transfer module (11′″) may be slid forward or rearward and rotated on the string stop rod (14). The mass transfer module (11′″) can be swivelled into a forward or rearward position to meet balancing and vibration dampening requirements.

The mass transfer module (11-11′″) may be quickly and easily adjusted on the archery bow (19) by allowing thereof to slide back and forth over a full length of the string stop rod (14) and rotating thereof around the string stop rod (14) to correct imbalance and/or vibration due to accessory installation and bow design. When an archery bow (19) is fired, the bow string (20) contacts the rubber bumper (18) of the string stop rod (14) and vibrations are transmitted down the string stop rod (14). The vibrations are absorbed by the mass transfer module (11-11′″), which is attached to the string stop rod (14).