A projectile launcher including a frame having a grip and defining a projectile axis, a drawstring hub rotatable mounted to the frame and defining a central axis perpendicular to the projectile axis and positioned a fixed distance from the projectile axis, a drawstring being attached to the drawstring hub so that movement of the drawstring results in the rotation of the drawstring hub about the central axis, a limb coupled to the frame and extending along a vertical limb plane, and a power cable coupled to the limb and the drawstring hub so that rotation of the drawstring hub about the central axis draws the limb closer to the central axis.

A method for monitoring operation of an archery bow includes attaching an apparatus to a bow cord. The apparatus includes a processor, a monitoring device electrically coupled with the processor, a wireless communication module electrically coupled with the processor, and a power supply electrically coupled with each of the processor and the wireless communication module. The method further includes detecting, by the monitoring device, a tension of the bow cord. The method also includes generating, by the processor and based upon the detected tension of the bow cord, data concerning tension of the bow cord. The method further includes wirelessly transmitting, by the wireless communication module, the data to a remote computing device. The method also includes receiving, by the remote computing device, the data. The method also includes presenting, by the remote computing device and based upon the data, information to a user reflecting the detected tension.

Cam assemblies and methods of propelling an arrow with a compound bow having a pair of limbs, a bowstring, a cable, a draw cam coupled to the bowstring, and a limb cam coupled to the cable. Such a method includes drawing the bowstring a first time to rotate the draw cam and the limb cam in a first direction, releasing the bowstring to rotate the draw cam in an opposite direction to the first direction while the limb cam remains substantially stationary and then drawing the bowstring at least a second time to rotate the draw cam and the limb cam in the first direction and thereby multiply energy stored in the limbs beyond the energy stored by the limbs during the first draw.

In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.

An archery bow assembly is provided including an open sided spacer which is mountable to an axle on an archery bow and removable therefrom without removing the axle entirely or partially from a limb of the archery bow. The spacer can mount on the axle adjacent a cam rotatable on the axle, and can include an outer perimeter and an axle aperture. A recess can extend inward from the outer perimeter to the axle aperture so that the axle aperture and recess form a continuous opening. The spacer can be of a C-shape or E-shape so that it can be frictionally pressed onto the axle and removed therefrom without removing the axle from the limb arms adjacent the cam. Related methods also are provided.

A system for a smart bow includes an accelerometer, a gyroscope, a user interface, and processing circuitry. The accelerometer is configured to measure acceleration of the smart bow. The gyroscope is configured to measure orientation of the smart bow. The processing circuitry is configured to receive the acceleration and the orientation of the smart bow from the accelerometer and the gyroscope. The processing circuitry is configured to perform an analysis on the acceleration and the orientation of the smart bow to identify an action performed with the smart bow. The processing circuitry is configured to operate the user interface to display a result of the analysis.

An archery bow is provided including a cam rotatable about an axis, a bowstring disposed in a bowstring track of the cam having a plane of rotation perpendicular to the axis, and a power cable that is displaced along the axis toward the plane of rotation to concentrate a force of the power cable near a force of the bowstring along the axis to inhibit twisting of a limb, when the bow is drawn. A related method of use is provided.

A firing system for a crossbow having an arrow rest extending along an arrow rest axis, the firing system having a right limb and a left limb, the right limb being pivotable about a right limb axis and the left limb being pivotable about a left limb axis, the firing system further including a right cam and a left cam, the right cam having a right bow string groove and being rotatable about a right cam axis, the left cam having a left bow string groove and being rotatable about a left cam axis, the firing system having a bow string extending between the right and left cams and extending within the right and left bow string grooves, the bow string positionable between an un-cocked condition and a cocked or full draw condition wherein movement of the bow string from the un-cocked condition toward the cocked condition moves the right and left cams toward each other and pivots the right and left limbs about the right and left limbs axes respectively, the firing system further including a power assembly having a power cable and a spring assembly, the power cable having a forward end operably joined to the right and left limbs and a rear end operably joined to the spring assembly, the spring assembly having a power spring extending along a power spring axis between a first spring end and a second spring end and having a central spring opening, the power spring being below the arrow rest, the power cable extending through the central spring opening from the first spring end toward the second spring end, the rear end of the power cable being operably joined relative to the second spring end of the power spring, moving the bow string from the un-cocked condition to the cocked condition causing the right and left limbs to the pull forward end of the power cable forwardly wherein the operable engagement with the second spring end compressing the power spring by pulling the second spring end toward the first spring end to produce the shooting force to propel the archery arrow.

A crossbow including a center rail including a bottom portion, a proximal end, and a distal end positioned opposite the proximal end, the center rail at least partially defining a crossbow length and a midpoint plane intersecting a horizontal midpoint of the crossbow, a riser extending horizontally from the distal end, one or more limbs coupled to the riser, and a trigger extending from the bottom portion of the center rail and positioned within ten percent of the crossbow length from the midpoint plane.

In some embodiments, an archery bow comprises a frame, a first limb assembly supporting a first rotatable member and a second limb assembly supporting a second rotatable member. The first rotatable member comprises a cam. A bowstring extends between the first rotatable member and the second rotatable member. A power cable is in communication with the cam. The first limb assembly has a width and a length, wherein the width is at least 26% of the length. In some embodiments, the width is at least 28% of the length.