CN2533924Y

CN2533924Y - Cues

Info

Publication number: CN2533924Y
Application number: CN 02200878
Authority: CN
Inventors: 蔡博文
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-18
Filing date: 2002-01-18
Publication date: 2003-02-05
Anticipated expiration: 2012-01-18

Abstract

A billiard stick comprises a front segment, a middle segment and back segment. After combined, the front segment, the middle segment and the back segment are shaped as a regular stick with a little taper. The length of the middle segment is defined as the middle segment length. The middle segment is provided with a front end a back end of the middle segment. The front end of the middle segment is connected with the front segment. The back end of the middle segment is provided with a concave part, which corresponds to a convex part of the back segment. The concave part is provided with a small diameter hole and an extension hole. The convex part is provided with a small diameter bar and an extension bar. The small diameter bar is fixed in the small diameter hole. The extension bar is clamped fixedly in the extension hole. Moreover, the contact length of the concave part and the convex part is at least a quarter of the middle segment length. The front segment, the middle segment and the back segment are all wooden. The middle segment and the back segment of the utility model are connected steadily to keep the seismic waves transmit smoothly and the hand feeling is good. In addition, the counterbalance is more precise, the weight is reduced and the performance of operation and control is better.

Description

Billiard stick

Technical field

The utility model relates to a kind of sports requsites, relates in particular to be connected firmly between a kind of stage casing and back segment, and feel is good, and inner seismic wave transmits smooth, and counterweight is more accurate, handling better billiard stick.

Background technology

As shown in Figures 1 and 2, traditional billiard stick comprises a leading portion 10, a stage casing 20 and a back segment 30, is mainly wooden.Generally be one smooth-going and slightly tool tapering shaft-like after this leading portion 10, stage casing 20 and back segment 30 combinations.

The length in above-mentioned stage casing 20 is defined as stage casing length L 1, and this stage casing has a stage casing front end 21 and rear end, a stage casing 22, and this stage casing front end 21 is for linking these leading portions 10, and rear end, stage casing 22 has a groove 91, just to a protruding seat 92 that should back segment 30.

Have a fixing hole 921 on this protruding seat 92, the screw rod 93 for locking one metal system (as iron) also has a screw 911 that can cooperate with this screw rod 93 in this groove 91, and this groove 91 is defined as traditional contact length L3 with the contact length of this protruding seat 92.

Yet there is following shortcoming in traditional billiard stick:

1,30 of stage casing 20 and back segments are easily loosening, and feel is poor.Screw rod 93 exposed lengths of tradition billiard stick are shorter, so traditional contact length L3 (for example 5 centimeters) is approximately about the sixth of this stage casing length L 1 (for example 30 centimeters), because the length of the contact portion that stage casing 20 and back segment are 30 is shorter, easily becomes flexible, and then cause the feel used poor.As shown in Figure 3, at square stance, the explosive force of moment is very big, and the bump desktop easily makes whole rod bending, so stage casing 20 and back segment 30 then can cause the critical defect of easily loosening and feel difference if can't firmly make up.

2, inner seismic wave transmission has some setbacks.Protruding seat 92 in traditional billiard stick is wooden, and screw rod 93 is a metal system, both material differences, so its seismic wave transfer rate difference, therefore, seismic wave has some setbacks in internal delivery.

3, metal screw increases counterweight inaccuracy and gross weight, and ball-handling is error easily.The proportion of metal is more much higher than timber, if the length of metal screw 93 increases, its weight also sharply rises, the original position of centre of gravity of whole billiard stick is changed, at this moment, must make the center of gravity of whole billiard stick get back to preposition at the back segment 30 terminal metal weights piece (not shown) that increase.Just in case counterweight inaccuracy or weight are too heavy, not only to play ball and have some setbacks, easily error and lose accuracy influences user's achievement in the ball-handling.

Summary of the invention

In order to overcome the above-mentioned shortcoming that existing billiard stick exists, the utility model provides a kind of billiard stick, makes to be connected firmly between its stage casing and back segment, and feel is good, and it is smooth that inner seismic wave is transmitted, and counterweight is easily precisely and weight saving handling better.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of billiard stick comprises leading portion, stage casing and back segment, generally is one smooth-going and slightly tool tapering shaft-like after this leading portion, stage casing and the back segment combination; The length in this stage casing is defined as middle segment length, and this stage casing has a stage casing front end and rear end, a stage casing, and this stage casing front end and this leading portion link, and this rear end, stage casing has a recess, just to a protuberance that should back segment; It is characterized in that described recess has a path hole and an elongated hole; Described protuberance has a path bar and an extension rod, and this path bar is fixed in this path hole, and this extension rod is fastened in this elongated hole, and again, the contact length of this recess and this protuberance is at least described middle more than 1/4th of segment length; Before described, stage casing, back segment be wooden.

Aforesaid billiard stick, wherein the path bar is provided with external screw thread, and this path hole also is provided with corresponding internal thread, makes it rotatable sealed fixing.

Aforesaid billiard stick, its posterior segment are the moulding one.

Aforesaid billiard stick, wherein extension rod is to be isodiametric round bar shape, and corresponding elongated hole is the hole of an equal diameter.

Aforesaid billiard stick, wherein extension is the different stepped round bar of diameter, this elongated hole be one with this extension stepped circular hole of driving fit mutually.

Aforesaid billiard stick, wherein extension is the coniform of diameter forward end convergent, this elongated hole be one with this extension conical bore of driving fit mutually.

Aforesaid billiard stick, the contact length of its center dant and protuberance are at least described middle more than 1/3rd of segment length.

The beneficial effects of the utility model are, make to be connected firmly between its stage casing and back segment, and feel is good, and it is smooth that inner seismic wave is transmitted, and counterweight is easily precisely and weight saving handling better.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic perspective view of traditional billiard stick.

Fig. 2 is the local assembled sectional view of traditional billiard stick.

Fig. 3 is the stressed schematic diagram of traditional billiard stick when bump.

Fig. 4 is an exploded perspective schematic diagram of the present utility model.

Fig. 5 is a local assembled sectional view of the present utility model.

Fig. 6 is the cutaway view of second embodiment of the present utility model.

Fig. 7 is the cutaway view of the 3rd embodiment of the present utility model.

Fig. 8 is the cutaway view of the 4th embodiment of the present utility model.

The specific embodiment

See also Fig. 4, this is first embodiment of a kind of billiard stick of the utility model, and it comprises a leading portion 10, a stage casing 20 and a back segment 30, generally is one smooth-going and slightly tool tapering shaft-like after this leading portion 10, stage casing 20 and back segment 30 combinations.

Wherein, the length in this stage casing 20 is defined as stage casing length L 1, and this stage casing has a stage casing front end 21 and rear end, a stage casing 22, and this stage casing front end 21 is and this leading portion 10 links, and this rear end, stage casing 22 has a recess 23, just to a protuberance 31 that should back segment 30.

This recess 23 has an aperture section 231 and an elongated hole 232.

This protuberance 31 has a little bar section 311 and an extension rod 312, this little bar section 311 can snap in and be fixed in this aperture section 231, and these extension rod 312 contact (fixing) these elongated holes 232, again, this recess 23 is at least more than 1/4th of this stage casing length L 1 with the contact length L2 of this protuberance 31.

This back segment 30 is wooden and for one machine-shaping, and this leading portion 10 and stage casing 20 also are wood materials.

See also second embodiment shown in Figure 5, wherein, this little bar section 311 is provided with an external screw thread, and also is provided with a corresponding internal thread on this aperture section 312, so both can rotate sealed fixing, and have stronger steadiness.Certainly, between the two if add viscose, in conjunction with after effect better.

In more detail, this extension rod 312 is isodiametric round bar shape, and corresponding elongated hole 232 is the holes for an equal diameter.

Whereby, because leading portion 10, stage casing 20 and back segment 30 are wood materials (not containing appearance sheath or composite bed), when the moment of this billiard stick batting, when inside had seismic wave to transmit, the speed of its transmission was identical.Again, because this contact length L2 is at least more than 1/4th of this stage casing length L 1, not only the contact interface that transmits of seismic wave is bigger, and stage casing 20 is very firm with the binding of back segment 30, and in addition, whole billiard stick woodenly makes it in light weight because of being.Simultaneously, be wooden center of gravity of the present utility model near predetermined center of gravity, even will adjust counterweight, required balancing weight is less, and counterweight is also more accurate fast, and is difficult for making gross weight to increase too much.So billiard stick of the present utility model is splendid in the whole feel of using.In addition, if require higher binding steadiness, also contact length L2 can be risen to more than 1/3rd of this stage casing length L 1 again.

Certainly, see also Fig. 7, the utility model also can slightly be revised and become the kenel of the 3rd embodiment, wherein, revise part and be that this extension rod 42 is the different stepped round bar of diameter (to cooperate the tapering of whole pole), can be two rank, three rank or multistage, and this elongated hole 52 be one can with this extension stepped circular hole of driving fit mutually.

Same, see also Fig. 8, this is the 4th embodiment, wherein, this extension rod 43 is coniform (to cooperate the tapering of whole pole) of diameter forward end convergent, and this elongated hole 53 be one can with this extension conical bore of driving fit mutually.

In addition, the back segment 30 in the various embodiments described above also is suitable for protection domain of the present utility model if change two-piece type or multi-piece type combination into by one machine-shaping.

In sum, advantage of the present utility model and effect can reduce:

1, stage casing 20 is firm with being connected of 30 of back segments, and feel is good.Because the recess 23 in the utility model and the contact length L2 of protuberance 31 are at least more than 1/4th of this stage casing length L 1 basically, increase contact area greatly and make its whole feel at square stance better.

2, inner seismic wave transmits smooth.Because stage casing 20 of the present utility model and back segment 30 are identical wooden, when the seismic wave of square stance during in internal delivery, transfer rate is identical, and is comparatively smooth.

3, counterweight is accurate, and gross weight alleviates, and is handling better.Do not had metal system element in the utility model inside, counterweight is simple and easy accurately, and gross weight alleviates, and therefore, whole is handling better, and square stance is more accurate sharp.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1. a billiard stick comprises leading portion, stage casing and back segment, generally is one smooth-going and slightly tool tapering shaft-like after this leading portion, stage casing and the back segment combination;

The length in this stage casing is defined as middle segment length, and this stage casing has a stage casing front end and rear end, a stage casing, and this stage casing front end and this leading portion link, and this rear end, stage casing has a recess, just to a protuberance that should back segment;

It is characterized in that described recess has a path hole and an elongated hole; Described protuberance has a path bar and an extension rod, and this path bar is fixed in this path hole, and this extension rod is fastened in this elongated hole, and again, the contact length of this recess and this protuberance is at least described middle more than 1/4th of segment length;

Before described, stage casing, back segment be wooden.

2. billiard stick according to claim 1 is characterized in that described path bar is provided with external screw thread, and this path hole also is provided with corresponding internal thread, makes it rotatable sealed fixing.

3. billiard stick according to claim 1 and 2 is characterized in that described back segment is the moulding one.

4. billiard stick according to claim 1 and 2 it is characterized in that described extension rod is to be isodiametric round bar shape, and corresponding elongated hole is the hole of an equal diameter.

5. billiard stick according to claim 1 and 2 is characterized in that described extension is the different stepped round bar of diameter, this elongated hole be one with this extension stepped circular hole of driving fit mutually.

6. billiard stick according to claim 1 and 2 is characterized in that described extension is the coniform of diameter forward end convergent, this elongated hole be one with this extension conical bore of driving fit mutually.

7. billiard stick according to claim 1 and 2 is characterized in that the contact length of described recess and protuberance is at least described middle more than 1/3rd of segment length.