Abstract: A cable tensed between a pair of large and small diameter cams of a bow and elastically deformed to generate an elastic force for rotating the pair of large and small diameter cams and a pair of string cams rotated integrally with the pair of large and small diameter cams in a reverse direction when the string is drawn to rotate the pair of large and small diameter cams are rotated. The cable has: a first high-elasticity raw thread wound around one of the pair of large and small diameter cams; a second high-elasticity raw thread wound around the other of the pair of large and small diameter cams; and a low-elasticity raw thread which connects the first high-elasticity raw thread with the second high-elasticity raw thread, the low-elasticity raw thread being elastically deformed more easily than the first high-elasticity raw thread and the second high-elasticity raw thread.

Abstract: A bow enabling high hit rate is provided. A bow 1 includes: a bow body 10 having a long hole 121; a grip 80 having a connection pin 81 which is inserted into the long hole 121 and movable in a longitudinal direction of the long hole 121, the grip 80 being connected with the bow body 10 in a state that the connection pin 81 is inserted into the long hole 121; and an elastic member 90 that connects the bow body 10 and the connection pin 81, wherein the elastic member 90 is elastically deformed to apply an elastic force to the bow body 10 and the connection pin 81 when the bow body 10 is moved with respect to the grip 80 by a drawing operation and the connection pin 81 is relatively moved in the longitudinal direction of the long hole 121.

Abstract: A bow capable of replacing the cable more easily is provided. A bow, includes: a bow body; a plurality of string cams around which each of both ends of a string for nocking an arrow is wound, the string cams being rotated when the string is drawn; a plurality of cable cams around which each of both ends of an elastically deformable cables is wound, each of the cable cams being rotated interlockingly with each of the string cams to elastically deform the cables; and a plurality of holders, each of the holders having a base portion pivotably held on each of both ends of the bow body and an end portion for rotatably holding each of the cable cams.

Abstract: A bow includes: a bow body; a first string cam provided on one end of the bow body to be rotatable, one end of a string being fixed to the first string cam; a first small diameter cam rotated with the first string cam, one end of a cable being wound on the first small diameter cam; a first large diameter cam rotated with the first string cam, one end of a cable being wound on the first large diameter cam; a second string cam provided on the other end of the bow body to be rotatable, the other end of the string being fixed to the second string cam; a second small diameter cam rotated with the second string cam, the other end of the cable being wound on the second small diameter cam; and a second large diameter cam rotated with the second string cam, the other end of the cable being wound on the second large diameter cam.

Abstract: A bow includes: a bow body; a first string cam provided on one end of the bow body to be rotatable, one end of a string being fixed to the first string cam; a first small diameter cam rotated with the first string cam, one end of a cable being wound on the first small diameter cam; a first large diameter cam rotated with the first string cam, one end of a cable being wound on the first large diameter cam; a second string cam provided on the other end of the bow body to be rotatable, the other end of the string being fixed to the second string cam; a second small diameter cam rotated with the second string cam, the other end of the cable being wound on the second small diameter cam; and a second large diameter cam rotated with the second string cam, the other end of the cable being wound on the second large diameter cam.

Abstract: In a wheelchair which comprises a pair of drive wheels mounted to a body frame and a front caster wheel and a rear caster wheel mounted to the body frame to the front and rear of the drive wheels so as to allow the wheelchair to turn at a stationary position, a link member extends between the body frame and the drive wheels, and includes one end pivotally connected to an upper part of the body frame and another end rotatably supporting the drive wheel, a rotary shaft of the drive wheels being placed behind a point of connection between the body frame and the link member at least before the front caster wheel abuts a stepped portion of a floor surface.