CN2293356Y - Connector for middle tube and frame of badminton racket - Google Patents

Abstract

The utility model relates to a connecting piece for connecting a middle tube and a racket frame of a badminton racket, and is primarily provided with a three-way block between the middle tube and the racket frame of the badminton racket, wherein, the three-way block is a block approximately in a U shape. A partition rib which divides the three-way block into two sections is formed at the center of the block. Each of the top and bottom ends of the partition rib is provided with an arc groove for the middle tube to sheathe. Thus, when the badminton racket is integrally formed, the three-way block can be used to avoid the phenomenon of bending of a blowing tube which is pulled by a reinforcement sheet, so that when the middle tube and the racket frame are formed by extrusion, folds between the middle tube and the racket frame are prevented, and the formed racket can retain the integrity and homogeneity of structure.

Description

Pipe and frame connector in the racket

The utility model relates to pipe and frame connector in a kind of racket.

Shuttlecock is a kind of ball game suitable for all ages, and general racket as shown in Figure 5, can be divided into frame 54, middle pipe 52 and handle 56.Wherein, for the overall weight that makes racket 50 can suitably alleviate, and has a certain intensity, frame 54 mostly is made with composite such as carbon fiber etc. with middle pipe 52, its method for making has integral forming method, but the integrated racket 50 of this kind is when making moulding, and the circularity of middle pipe 52 is difficult to be controlled, and so just can reduce the quality of racket 50.And the flexibility of this integrated racket 50 is also relatively poor, makes it can't reach user's user demand.

Form and there is a kind of racket 50 to mutually combine in addition by frame 54 and middle pipe 52, its method for making is as described in the novel patent application of TaiWan, China No. 82107781 " manufacture method of two-section jointed racket frame ", it mainly is that bottom side along a racquet frame head swathes long fiber material, the threeway portion that makes this long fiber material form having predetermined racquet frame shape and in pipe portion, and swathe simultaneously to top orientation one distance in middle pipe bottom and to become to have a protheca blank portion.Then the blank body of these semi-finished product is inserted in the mould, the hot gas that these semi-finished product are imposed predetermined temperature is advertised again, make threeway portion, middle pipe portion and protheca blank portion be foamed into reservation shape and connect to one, and this protheca form from middle pipe portion top orientation to the back-end direction enlarge shape gradually, have the kenel distribution that accommodation space and bottom are sky in inside, so can obtain the semi-finished product of a racket.

This kind two-period form racquet frame is being blown into hot-air when making the racquet frame moulding, in middle pipe portion, threeway portion and protheca blank portion, can penetrate a blowpipe, enter inside such as middle pipe portion in order to the guiding air, and utilize blowpipe circular through being blown into the air blow-up, make threeway portion, protheca blank portion etc. be subjected to air pressure and cooperate foaming with mould.Link threeway portion and middle pipe portion in addition, and can increase between the two bond strength simultaneously, swathe to multiple tracks and middle pipe portion reinforcing chip in the same way in big city with between middle pipe portion of threeway portion, can allow reinforcing chip after the hot gas foaming, with the threeway portion formation frame that merges into an organic whole, in order to pipe portion in the combination and threeway portion, and provide preferable bond strength, with the structural strength after the moulding of raising racket.

But above-mentioned two-period form method for making racket, wherein pipe portion and threeway portion all can reserve one and can pass through for blowpipe, and when blowpipe is blown into hot gas, can send out the space of rising.Yet this space is quite easily because of swathing reinforcing chip, and consequently pipe portion and threeway portion in the pulling make middle pipe close mutually with threeway portion, and shortened the space of being reserved, and cause blowpipe that the phenomenon of bending is just arranged when not blowing.This moment is if be blown into hot gas in blowpipe, then blowpipe in the bending place just smoothly blow-up become reservation shape, can't smooth complete moulding between pipe portion and threeway portion in making, and the generation of distortion, fold is arranged, make the phenomenon that has stress to concentrate between pipe portion and threeway portion, reduce its whole structural strength and service life.

Main purpose of the present utility model, be to provide pipe and frame connector in a kind of racket, during avoiding, it because of establishing reinforcing chip the phenomenon of blowpipe bending is arranged between pipe and frame, make blowpipe when being blown into hot gas, be able to complete blow-up moulding, to guarantee the integrality of Badminton racket moulding, avoid the generation of fold, and reach the purpose that improves racket moulding quality and structural strength.

The technical solution of the utility model is, pipe and frame connector in a kind of racket are provided, it mainly is that a threeway piece is set between the frame of Badminton racket and middle pipe, this threeway piece is the block that a cross section is the  type, be formed with one in the central authorities of block block is separated into the separation rib of two accommodation spaces, on the block medial surface at the free-ended two ends up and down of separation rib, being concaved with one respectively can be for the arc-shaped groove of pipe in the blocking.

In described racket the pipe with the frame connector in, two sides up and down at threeway piece block opening part, horizontal-extending is formed with a fin respectively, and the pipe direction of insertion is concaved with one and extends to the free-ended arc-shaped groove of separation rib in two fin relative inner face upper edges.

The utility model has the advantages that, since utilize a threeway piece avoid because of in manage and frame between the phenomenon that reinforcing chip has headspace to dwindle is set, thereby can guarantee that blowpipe can keep good blow-up moulding when being blown into hot gas, avoid pipe and frame that the generation of fold and the phenomenon that stress is concentrated are arranged after moulding, thereby improved integrality and the uniformity and the whole structural strength thereof of racket moulding.

Further specify specific structural features of the present utility model and purpose below in conjunction with accompanying drawing.

Brief Description Of Drawings:

Fig. 1 is the stereo appearance figure of pipe and blowpipe during the utility model cooperates.

Fig. 2 is the front elevational schematic of the utility model one embodiment.

Fig. 3 is the schematic side view of the utility model one embodiment.

Fig. 4 is the stereo appearance figure of another embodiment of the utility model.

Fig. 5 is the stereo appearance figure of racket of the prior art.

Please referring to Fig. 1, it is the stereo appearance figure of pipe and blowpipe during the utility model cooperates, and by seeing among the figure, the utility model mainly is that a threeway piece 10 that is arranged between racket frame and middle pipe is arranged.This threeway piece 10 is one to be the block 12 of  font, and block 12 central authorities are formed with one block 12 grades are separated into two-part separation rib 16, make block 12 be formed with two accommodation spaces 14 respectively via the separation of separation rib 16.Be concaved with up and down a groove 18 that is circular arc on the block 12 at two ends respectively at separation rib 16 free ends in addition.

When racket is made moulding, pipe 30 (please cooperate referring to shown in Fig. 2,3) with being swathed by composite between frame 32 blanks that form in this threeway piece 10 can being inserted, and allow the open end of threeway piece 10 to middle pipe 30, and middle pipe 30 insertions are equipped on the groove 18 of threeway piece block 12 and 16 formation of separation rib, pipe 30 is able to and 10 sockets of threeway piece in making.And allow penetrate in pipe 30 blowpipe 34, pass through via the accommodation space 14 of block 12 separation ribs 16 both sides, and be surrounded on the inside of frame 32 blanks.Although coat reinforcing chip 36 32 of middle pipe 30 and frames this moment, and middle pipe 30 also can be because of the setting of reinforcing chip 36, and the phenomenon that moves close frame 32 is arranged.Dwindle change thereby pipe 30 and 32 spaces of being reserved of frame are unlikely in can guaranteeing, make blowpipe 34 can thereby not produce the phenomenon of bending, when being blown into hot gas, can blow-up become predetermined shape, can complete, even moulding when allowing frame 32 because of the complete blow-up of blowpipe 34 with middle pipe jointing moulding, not having fold produces, avoiding the having phenomenon that stress is concentrated after the racket moulding, thus can be so as to strengthening the structural strength of racket integral body.

Please referring to shown in Figure 4, by seeing among the figure, the threeway piece 20 of another preferred embodiment of the utility model also can be in the opening part of  type block 22 two sides up and down, each horizontal-extending is formed with a fin 24, the relative inner face of two fins 24 then along in the directions inserted of pipe 30 be concaved with one and extend to separation rib 26 free-ended arc-shaped grooves 28.So, in can increasing, the socket bond strength of pipe 30 and 20 of threeway pieces, also can utilize the fin 24 of threeway piece 20 to cooperate the thicker frame of thickness 32, thereby can avoid the drop of 30 of frame 32 and middle pipes and the generation of stress concentration phenomenon.

Claims (2)

1. manage and the frame connector in a racket, it is characterized in that: it mainly is to be provided with a threeway piece between the frame of Badminton racket and middle pipe, this threeway piece is the block that a cross section is the  type, be formed with one in the central authorities of block block is separated into the separation rib of two accommodation spaces, on the block medial surface at the free-ended two ends up and down of separation rib, being concaved with one respectively can be for the arc-shaped groove of pipe in the blocking.

2. pipe and frame connector in the racket according to claim 1, it is characterized in that: in the two sides up and down of threeway piece block opening part, horizontal-extending is formed with a fin respectively, and the pipe direction of insertion is concaved with one and extends to the free-ended arc-shaped groove of separation rib in two fin relative inner face upper edges.

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