Abstract: A fishing rod consists of a body having a tapered and slender rod body of a composite material. The rod body is covered by a woody layer for providing the body with a woody texture and an excellent mechanical property.

Abstract: A shock-absorbing device is designed for use in ballgame goods having a tubular rod-shaped body and is composed of a tubular body and a weight. The tubular body is made of a soft elastic material. The weight is disposed in the tubular body such that weight is connected with the tubular body, and that an interstice is located between the outer surface of the weight and the inner wall of the tubular body so as to enable the weight to vibrate in the tubular body. The tubular body of the shock-absorbing device is disposed in the inner wall of the tubular rod-shaped body of the ballgame goods. The tubular body is capable of absorbing shock wave of the ballgame goods. The vibrational motion of the weight is capable of canceling shock wave of the ballgame goods.

Abstract: A fiber-reinforced article comprises a tubular body and a plurality of fiber braids for reinforcing the tubular body. The fiber braids have a first section parallel to the axis of the tubular body, and a second section forming an angle with the axis of the tubular body. The second sections of the fiber braids form a network capable of enhancing the resistance of the article to flexure and torsion.

Abstract: A golf club is composed of a tapered shaft, a grip fastened at one end of the shaft, and a head fastened at another end of the shaft. The shaft is reinforced by a ridged structure consisting of at least two ridges extending along the direction of the longitudinal axis of the shaft.

Abstract: A golf club is composed of an inner tube and an outer tube. The inner tube is tapered in shape and is composed of a plurality of first and second fiber braids. The outer tube is made of a plurality of third fiber braids and wound around the inner tube to reinforce the structural strength of the edge of the plastic composite which forms the inner tube. The overall structural strength of the golf club is further enhanced by a netted outer tube made of a plurality of fourth and fifth fiber braids. The netted outer tube also serves to smooth the outer surface of the golf club.

Abstract: A golf club is formed of a plurality of unit members of a plastic composite material reinforced by fiber braids. The unit members are tubular in shape and are connected end to end such that their axes are aligned and that the inner diameter and the outer diameter of the golf club are progressively increased in a steplike manner from the small end of the golf club towards the large end of the golf club.

Abstract: A game racket has a handle formed of at least three suspension arms arranged side by side at an interval to form therebetween three slots parallel to the longitudinal axes of the suspension arms. The handle is provided with a shock-absorbing element having a body and a plurality of pieces extending from the body and corresponding in number to the slots. The shock-absorbing element is implanted in the handle such that the body is located in a common center of the slots, and that the pieces are located in the slots. The overall contact area between the shock-absorbing element and the handle is greatly expanded to enable the handle to alleviate the impact effectively.

Abstract: A game racket comprises a head frame and a handle. The head frame has a throat portion and a crown portion opposite to the throat portion. The throat portion is provided with two first string holes and a plurality of second string holes located between the two first string holes. The portions other than the throat portion are provided with a plurality of first string holes for fastening the first string sections. The second string holes of the throat portion and the first string holes of the crown portion of the head frame are intended for fastening the second string sections radially to interlace the first string sections so as to form a ball-striking face of the head frame. The second string sections are fastened in pair in the second string holes.

Abstract: The invention is directed to a fiber braid having at least a first fiber extending spirally along an imaginary axis such that the first fiber forms a predetermined angle with the imaginary axis and at least a second fiber interlaced with the first fiber and extending spirally and coaxially with the first fiber such that the second fiber and the first fiber form a tubular network, with the imaginary axis serving as the axis. At least a third fiber is added to the tubular network so that it extends in a direction parallel to the axis of the tubular network, and is interlaced through a selected number of openings in the tubular network.

Abstract: A game racket comprises a head frame provided with a plurality of first string holes and second string holes for stringing the game racket head. The head frame is provided in the outer surface thereof with a plurality of string protecting casings, each of which has a body portion and a plurality of guide tubes which can be inserted into the corresponding first string holes or second string holes. Some of the string protecting casings are provided with a locating hole which is located centrally between the two guide tubes. The head frame is further provided with a plurality of guide blocks located respectively at the outer side of the string protecting casing and between two adjoining guide tubes. The guide blocks are provided respectively with a locating column corresponding in location to and engageable securely with the locating hole of the string protecting casing.

Abstract: An improved metal game racket comprises a frame, a shaft and a handle. The frame has a head with an open end from which the shaft extends to join with the handle having a main body of a polymer material. The main body has an inner surface provided thereon with a reinforcing layer and further has an outer surface provided thereon with an auxiliary shock-absorbing layer. The main body has an anterior segment connected with the shaft and a posterior segment of hollow construction and extending from one end of the anterior segment. The reinforcing layer is made of a fiber reinforced plastic material while the auxiliary shock-absorbing layer is made of a plastic foam body.

Abstract: A shock-absorbing metal game racket comprises a frame and a handle connected at one end thereof with a posterior end of the frame made of a metal-tube by bending. The frame has an annular head portion with two open ends from which two parallel shaft portions are formed such that the shaft portions extend respectively toward the handle, Each of the two shaft portions has an outer surface provided with an open slot of a predetermined length. The open slot is provided with a shock-absorbing member embedded thereinto for absorbing the shock wave coming from the head portion which has hit a ball.

Abstract: A game racket of composite material comprises a head, a shaft and a handle. The head and the shaft are made of a tubular body while the handle is made of a second tubular body and a third tubular body. The second tubular body extends posteriorly form one end of the first tubular body and is covered with the third tubular body. The first and the second tubular bodies are composed respectively of a first and a second outer shells of a plastic composite material containing long fiber reinforced thermosetting resin. The second outer shell has fewer layers than the first outer shell. The third tubular body has a third outer shell of a plastic composite material containing fiber reinforced thermosetting resin. The second outer shell is covered with the third outer shell.

Abstract: A game racket with a head frame having an outer peripheral surface and an inner peripheral surface defining an oval area. The head frame is provided with a first set of string holes and a second set of string holes. Each of the second set of string holes is located below a center portion of two adjacent string holes of the first set. The outer peripheral surface is provided with a first groove and a second groove. A string is strung such that it is threaded through each pair of of the adjacent string holes of the same set through the oval area to crisscross and interlace each string section bridging two adjacent string holes located in the corresponding first or second groove.

Abstract: A method of making game racket frame of plastic compound material includes a tubular body, which is formed by a bendable inner tube wrapped orderly and windingly with the cured thermoplastic plastic thin films and the long fiber fabric sheets made up of a plurality of long fiber bundles. The tubular body is placed in a mold cavity of a molding tool, which is subjected to a heat corresponding to the melting point of the thermoplastic plastic thin film. A gas with a first predetermined pressure is introduced into the tubular body so as to force the molten thermoplastic plastic thin film to diffuse uniformly into the interstices of the fiber bundles. Another gas having a second predetermined pressure is introduced into the tubular body to force the outer shell of tubular body to attach intimately to the wall of mold cavity of the molding tool, which is then cooled to permit the removal of the racket frame made therein. The method produces a recyclable racket frame and no waste causing environmental pollution.

Abstract: A method of making a bicycle frame of plastic composite material includes a process in which an inner tube is wrapped orderly with at least a thermoplastic matrix layer and a long fiber reinforcing layer, so as to form a tubular object having a laminated outer shell. The tubular object is placed in a molding tool, which is then heated up to a temperature corresponding to the melting point of the thermoplastic matrix. Under the condition that the heating temperature is maintained, a pressurized gas having a pressure is introduced into the tubular object in such a manner that the pressure is increased progressively and stepwise for a predetermined period of time. The molding tool is finally cooled to permit the removal of a newly-formed bicycle frame, which is light in weight, strong and tough.

Abstract: A game racket frame of metal material comprises a head frame, a handle, and a throat located between the handle and the head frame. The handle has a shaft portion which has one end that is coupled with the throat and another end extending axially and outwardly to form a hand grip. The hand grip is provided with an area adjacent to the shaft portion and having therein at least a slit of a width measured in a direction perpendicular to the longitudinal axis of the area. The width of the slit is at least corresponding to 3% of the circumferential length of any cross section of the area. The slit serves to interrupt and attenuate the shock wave that is generated by the head frame upon hitting a ball and is subsequently transmitted to the handle.

Abstract: A racket frame of plastic compound material has a shaft and a head frame coupled with the shaft. Such racket frame is provided with a hollow shell body having a first portion making up the shaft and a second portion forming the head frame. The first portion is furnished with at least a layer of fiber-reinforced plastic material which is made from a thermoplastic plastic as a matrix and reinforced by a long fiber reinforcing material. The second portion contains at least a layer of fiber-reinforced plastic material which is made from a thermosetting plastic as a matrix and reinforced by a long fiber reinforcing material. The first and the second portions are joined together to form a junction which is wrapped around by the fiber-reinforced plastic material of the second portion. The racket frame so made is provided with superior qualities of strength, stiffness, bouncing capability, toughness, and shock-absorbing capability.

Abstract: A shock-absorbing racket frame made of fiber reinforced plastic material is mainly composed of a head frame and a shaft-handle portion. The racket frame is further provided with a thin plastic tube wrapped around by a first outer layer made of fiber reinforced plastic material and intended to form the head frame and the front segment of the shaft-handle portion. The thin plastic tube is further wrapped around by a second outer layer of fiber reinforced plastic material intended to form the hand grip of the shaft-handle portion. A reinforced surface of fiber reinforced plastic material is disposed across the gap between the two outer layers. The fibers making up the head frame are thus interrupted and disconnected with the fibers making up the hand grip of shaft-handle portion.

Abstract: A method of making a game racket frame comprises the use of a tubular body of aluminum alloy consistent with a shape of a racket frame. An annular recess is provided respectively at the mid-point of the left-hand half of the head frame and at the mid-point of the right-hand half of the head frame. The annular recess is coated with adhesive resin. The tubular body is placed in a molding tool comprising a mold cavity having an annular ring which is located at a position corresponding to the annular recess of the tubular body and which has a shape corresponding to that of the annular recess of the tubular body and a size slightly larger than that of the annular recess of the tubular body. The molten plastic material is injected into the mold cavity under pressure and heat. Upon completion of the curing of the plastic material, the racket frame is removed from the molding tool. The racket frame so made is provided with weight-balancing pieces fastened securely to the head frame of the racket.