CN2183792Y - Improvement of tennis racket holes for strings - Google Patents

Abstract

The utility model discloses an improved design for thread holes of racket frames, mainly comprising a racket frame and a grab handle for forming a racket. A prearranged number of thread holes are penetrated and drilled on both inner and outer sides of a frame body of the racket frame correspondingly for screen wire to penetrate through to form a racket surface. The improved design for thread holes of racket frames is characterized in that each of the thread holes is arranged by interlacing and distributing into at least three rows for the cross penetration of the screen wire to form a wire side. The screen wire forms a plurality of line segments which are in cross arrangement among each of the thread holes outside the racket frame. Each line segment is connected with each other by the racket surface, and forms cross arrangement at the outer side surface of the racket frame. Contiguous line segments are caused to be unparallel with each other.

Description

Improvement of tennis racket holes for strings

The utility model relates to the improvement design that frame of racket refers to a kind of frame of racket through wires hole especially.

Many running through relatively in frame periphery medial and lateral of existing frame of racket is drilled with several through wires holes, and each through wires hole as shown in Figure 1 and Figure 2, wears to form a face through each line hole for netting twine on same horizontal line back and forth in length and breadth.This habitual through wires hole set-up mode makes netting twine and frame framework axis be parallel shape.At square stance, the vibration force of racket is increased one's load to user's arm, and this habitual through wires hole mode makes the intensive hole that is drilled with of the same axis of framework, and each hole all blocks, destroys same fiber of frame, when bearing strength, frame make stress all concentrate on each hole place, the long-term use all has adverse influence to the intensity and life-span of racket.For overcoming this defective, another kind of racket appears at present, and wherein each through wires hole is double staggered pattern, as shown in Figure 3.After netting twine wears, netting twine in frame axially forms consistent angle of inclination with frame, make the compressional wave of the stressed generation of batting back netting twine not be vertical transmission,, and avoid same the intensive cut-out of fiber with the influence degree of reduction racket vibration to arm with the racquet frame face.Yet, when this racket produces compressional wave in netting twine batting,, cause between two netting twines reciprocal compressional wave or for cancelling each other or being addition because of the striking point on the ball difference.If offset, then can reduce load to frame of racket and arm; But during for the addition situation, all will strengthen, still can not overcome aforesaid defective frame and arm load.

The purpose of this utility model is to provide a kind of improvement design of frame of racket through wires hole, make on the frame same fiber be blocked each Duan Jun of back and still have equivalent length, to reduce because of the intensive through wires hole that is drilled with, the consequence that causes the frame strength of materials to weaken also alleviates the load of square stance impulsive force to arm simultaneously.

The utility model design is: a kind of improvement design of frame of racket through wires hole mainly comprises a frame and a handle, to form a racket, this frame runs through relatively in the inside and outside both sides of framework and is drilled with a predetermined number through wires hole, it is characterized in that: this each through wires hole is staggered, arranged evenly to be at least three row, intersects for netting twine to wear with the formation wire side; This netting twine forms several line segments of cross arrangement between this this each through wires hole of frame outside; This each line segment is connected by face around here, and each line segment is not parallel to each other adjacent segments, so that the compressional wave of each line segment vibration of square stance can be subdued each other in frame lateral surface formation cross arrangement.

The special through wires hole arrangement mode of the utility model utilization strengthens same each through wires hole spacing that axially goes up, it is longer to make frame be cut off fibre length, with the intensity of assurance frame material, and square stance, ball can effectively be subdued the impulsive force of racket, to reduce the racket extent of vibration.

Lift a most preferred embodiment below in conjunction with accompanying drawing:

As Fig. 4, shown in Figure 5.One frame of racket (10) and a lever (20) form a racket, wherein this frame (10) is in framework, outer both sides are run through relatively and are drilled with a predetermined number through wires hole (30), this each through wires hole (30) is to be three row ordered state interlaced with each other, and distance equates between the row of central array and both sides, one netting twine (40) is by on this each through wires hole (30), down, a left side, the right intersection wears, so as to forming face, this netting twine (40) forms several line segments (32) that are staggered in this frame (10) outside, be connected by face between this each line segment (32), and form not continuous in the frame lateral surface, and the state of mutual inclination, this each line segment (32) is set in the through wires hole of central array and the through wires hole of side row respectively.The racket square stance, ball hits face, face bears load, by this netting twine (40) this load is passed to this frame (10), and this netting twine (40) is stressed and produce vibration, this vibrational energy also is passed to this each line segment (32) simultaneously, this each line segment (32) is vibrated respectively and produces compressional wave in vertical this each line segment (32) direction.Yet, because this each line segment (32) forms a special angle and distance to each other mutually, this special space configuration runs into another compressional wave respectively when each compressional wave is outwards transmitted, produce the difference of position owing to intersect the difference and the fluctuation of each compressional wave direct of travel, make crossing each compressional wave become to interfere with each other and the produce power consumption, the vibrational energy that this frame (10) is born reduces.Moreover, because each through wires hole (30) is to be staggered to be arranged at three row axis, same fiber on same axis is subtracted greatly by the number of times that through wires hole (30) blocks, and the twice that every section fibre length is at least existing racket does not wait, and therefore keeps effectively and prolongs the racket life-span.

Below accompanying drawing is illustrated:

Fig. 1 is the stereogram of existing racket.

Fig. 2 is the batting state side schematic view of existing racket.

Fig. 3 is another existing racket batting state side schematic view.

Fig. 4 is the batting view of an embodiment of the present utility model.

Fig. 5 is the stereogram of an embodiment of the present utility model.

Fig. 6 is that the utility model and existing racket strings hole ordered state compare schematic diagram.

Fig. 7 is a relatively schematic diagram of the stressed compressional wave state of the netting twine of the utility model and existing racket.

Claims (1)

1, a kind of improvement of frame of racket through wires hole design, mainly comprise a frame and lever and form a racket, this frame of racket runs through relatively in the inside and outside both sides of framework and is drilled with a predetermined number through wires hole, it is characterized in that: this each through wires hole system is staggered, arranged evenly to be listed as at least three, wear to form face for the netting twine intersection, this netting twine forms several line segments of cross arrangement between this this each threading of frame outside, be connected by face between this each line segment, and this each line segment is not parallel to each other adjacent segments in frame lateral surface formation cross arrangement.

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