CN2635149Y

CN2635149Y - Improved wood based baseball bat

Info

Publication number: CN2635149Y
Application number: CNU032726325U
Authority: CN
Inventors: 张荣士
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-07-03
Filing date: 2003-07-03
Publication date: 2004-08-25
Anticipated expiration: 2013-07-03

Abstract

The utility model provides an improved wood baseball bat, which comprises a wood body having an ordinary wood bat shape throughout the two ends of which having a center hole along the axial direction. A core tube is fixed into the center hole which is made of strongly tough material such as composite material, metal or plastic and so on. An inner wall surface of the core tube has internal threads corresponding to the front part which is used for striking with the bat and also has internal threads corresponding to the back part which is used for striking with the bat in addition. Each end of the core tube with internal threads has a weight block, and each weight block can twist under the external force and move along the axial direction of the core tube.

Description

The wooden baseball bat of improvement

Technical field

The utility model is relevant with baseball bat, more detailed it, be higher about a kind of intensity, the batting performance is preferable, and the wooden baseball bat of adjustable bulk wight heart position.

Background technology

The used bat of baseball can generally be divided into wooden stick and metal bar (common person such as aluminium bar) two big classes.Though compared to metal bar, use wooden stick to need higher craftsmenship, many people still like or are accustomed to the touch (or the bell feelings are in the distinctive appearance tactile impression of wooden stick and batting sound) of wooden stick, and select to use the wooden stick batting.

Yet wooden stick has two big shortcomings and demands urgently improving: one be intensity a little less than, fracture easily or rhegma; Its two for the batting performance relatively poor relatively (comprising the less and difficult grasp striking point on the ball of power).

In addition, the position of centre of gravity of bat is to depend on its material and dimensions (length, thickness), but because the material of wooden stick is a natural timber, the density of its quality is difficult to control (no matter being with wooden unit turning moulding or with the wood chip compression forming), even if so material and the identical wooden stick of dimensions, position of centre of gravity also has difference, makes product performance to unify.Again from other angle, under prior art, the wooden stick that specification is identical, its position of centre of gravity promptly is confined in a certain section scope, want to make the wooden stick that center of gravity is left this section, just must change the size of bat or ratio can not, make that so the flexibility ratio in the product design is lower.

Utility model art content

Main purpose of the present utility model is promptly providing a kind of wooden baseball bat of improvement, the higher and easy fracture not of its intensity; And this bat has bigger moment (moment) and bigger sweet spot (sweet spot) when driving, and the batting performance is preferable; Simultaneously, this bat can be for adjusting its position of centre of gravity, to set or to proofread and correct the characteristic specifications of product simply.

Take off purpose for before reaching, the utility model provides a kind of wooden baseball bat of improvement, it is characterized in that, includes:

One wooden main body has a holding end, blow pommel, and a mesopore that runs through two ends vertically;

One core pipe, material are the analog of composite, metal, plastic cement or above-mentioned material; The length that is shorter in length than this main body of this core pipe, and be that build-in is in the mesopore of this main body; The internal face of this core pipe is in position, batting end that should main body is provided with internal thread; And

One balancing weight is located in this core pipe, this balancing weight surface be provided with external screw thread and with the internal screw-thread screw of this core pipe; This balancing weight can be subjected to external force reverse and along this core tubular axis to displacement.

Wherein: the internal face of this core pipe is in holding end position that should main body also is provided with internal thread; Include another balancing weight in addition, this balancing weight be located at this core pipe inside to should the holding end position, simultaneously, this balancing weight surface also be provided with external screw thread and with the internal screw-thread screw of this core pipe.

Wherein: the material of this core pipe is a carbon fibre composite.

Wherein: this core tube-surface has some raised lines that extend vertically.

Wherein: this core pipe inside is not provided with the position of aforementioned internal thread, has the some support chips that distribute radially.

Wherein: also including two and fill up body, is mesopore two end positions that are embedded in this main body respectively.

Wherein: respectively this material of filling up body is a timber.

Wherein: this main body is that the wooden stick by plural number is put together.

Description of drawings

For further specifying technology contents of the present utility model, following conjunction with figs. is lifted some preferred embodiments structure of the present utility model and effect are elaborated, and is wherein used

Brief description of drawings is as follows:

Fig. 1 is the axial cutaway view of the bat of the utility model first preferred embodiment;

Fig. 2 is the sectional view of the bat obtained along 2-2 hatching line among Fig. 1;

Fig. 3 is Fig. 2 roughly the same, is the sectional view of the bat of the utility model second preferred embodiment;

Fig. 4 is Fig. 2 roughly the same, is the sectional view of the bat of the utility model the 3rd preferred embodiment;

Fig. 5 is the axial cutaway view of the bat of the utility model the 4th preferred embodiment;

Fig. 6 is the sectional view of the bat obtained along 6-6 hatching line among Fig. 5; And

Fig. 7 is the axial cutaway view of the bat of the utility model the 5th preferred embodiment.

The specific embodiment

Please consult Fig. 1 and Fig. 2 earlier, first preferred embodiment conventional letter in the drawings of the utility model " the wooden baseball bat of improvement " is 10, and it includes:

One main body 12, material are generally can be in order to make the timber of wooden stick, and profile is the shape of general wooden stick, that is has a thinner holding end 14 and a thicker batting end 16; In the present embodiment, the length overall of main body 12 is 32-35 cun, and the diameter of holding end 14 is 7/8-1 cun, and the diameter of batting end 16 is 2-2.5 cun; Certainly, aforementioned dimensions only is the preferable selection on implementing, and the utility model is not limited to aforementioned dimensions scope or relative scale.Have a mesopore 18 that runs through two ends vertically on the axle center of this main body 12, in this example, the cross section of this mesopore 18 is rounded, and the aperture keeps unanimity, is about 3/4 cun.In addition, the position, aperture respectively at this mesopore 18 is provided with the circular groove 22 of a diameter greater than mesopore 18 on the biend of main body 12.

One core pipe 24, material are composite (for example carbon fiber), also can adopt the analog of metal, hard plastic or above-mentioned material in addition.Core pipe 24 is straight pipe, and length slightly is shorter than the axial length of this main body 12, and external diameter is then corresponding to mesopore 18 apertures (that is about 3/4 cun) of this main body 12.Core pipe 24 be build-in in the mesopore 18 of main body 12, core pipe 24 2 ends respectively with the biend of main body 12 at a distance of distance (present embodiment is that core pipe 24 end faces are roughly trimmed in the inner of aforementioned grooves 22) slightly.Respectively be provided with the internal thread 26 of definite length extended on the internal face of core pipe 24 in its portion of two end office (EO)s.

Two balancing weights 28, material are metal, generally are cylindric, and side face is provided with external screw thread 32.This two balancing weight 28 is to be located in this core pipe 24 inside, and lays respectively at core pipe 24 2 ends and screw togather with aforementioned internal thread 26.It is to have predetermined tightness that the screwing togather of 24 of balancing weight 28 and core pipes closed, and makes the not i.e. rotations voluntarily of action such as these main body 12 whippings, vibration of reason outside of balancing weight 28.The outer face of each balancing weight 28 is provided with (not shown) such as flat recess, cross recess or hexagonal shrinkage pool on (promptly referring to its right side the right side person to scheme meta), can be for instrument intercalations such as a word or cross driver, can specific external force reverse balancing weight 28 thus, make balancing weight 28 axially be provided with the section intrinsic displacement of internal thread 26 along core pipe 24.

Two fill up body 34, and material is timber (is good with the timber that is same as this main body 12), are caulkeds and cemented in groove 22 positions of these main body 12 2 ends, and mesopore 18 2 ends with involution main body 12 constitute complete wood surface simultaneously.

More than be the structure of the wooden baseball bat 10 of the utility model one preferred embodiment.This baseball bat has following characteristic and advantage:

One, external and general wooden stick is as good as, and has distinctive appearance tactile impression of wooden stick and batting sound.

Two, be embedded into isometric tough core pipe by shaft core position, can significantly strengthen the structural strength of bat, make square stance easy fractureing or rhegma unlike traditional wooden stick, thereby can prolong the service life of bat in wooden main body.

Three, in process of production, the producer can utilize instrument to reverse the counterweight of core pipe inside, make counterweight along the displacement of bat axle center, with the position of centre of gravity that changes bat (annotate: more than take off embodiment, be center of gravity can be adjusted at apart from the bat front end face 10.5-14.5 cun scope).Thus, the producer can all proofread and correct the center of gravity with batch bat in certain desired location, make that the performance of product is in full accord, and the density of reason timber quality does not change and variant; Perhaps, measure-alike bat can be adjusted the mutually different plural specification of position of centre of gravity,, make the product specification kind than horn of plenty with under certain manufacturing cost; And the above-mentioned skill and technique that the utility model provides can break through the size of traditional wooden stick and the relation that pins down between center of gravity, thereby the user can be provided more flexile selection.

Four, by this two balancing weight being disposed at bat front and back two ends (and adjustment) in better position, can make bat when hitting, produce bigger moment, and bigger sweet spot is arranged, make the user hit spheroid with the sweet spot of bat batting usefulness the best easily, and square stance more has power, ball can be hit faster fartherly.

What must remark additionally is again, bat main body in the utility model, may be as wooden stick, be by complete wooden unit institute's turning machine-shaping (getting out mesopore in addition inserts aforementioned core pipe again), perhaps also can imitate known " compression wooden stick " method for making, most (material can be inequality) wood chip compression rings are overlying on the core pipe form on every side.In addition, also can forming shape be binded in wooden stick 42 splicings of plural number be same as aforesaid bat main body 44 as shown in Figure 3; In this example, main body 44 is made up of the stick 42 that two cross sections generally are 1/2nd circles, and each stick 42 inner face has a chase 46 that extends vertically, can be to synthetic mesopore 52 in order to ccontaining core pipe 48; During making, be with this two stick 42 abreast with core pipe 48 double teams in central authorities, and composition surface mat viscose binds and to form.

Core pipe in the utility model does not limit outer peripheral face for positive circular.See also shown in Figure 4ly, have some raised lines 54 that extend vertically on core pipe 52 outer peripheral faces in the present embodiment, make the similar gear shape in cross section of core pipe 52, surface be and agree with along the concavo-convex fluctuating of circumference and with mesopore 58 perisporiums of main body 56.So not only can increase the intensity of core pipe 52 itself, the intensity that makes bat with lifting, but and the bond strength of strengthening core pipe 52 and 56 of main bodys, so unlikelyly when reversing the balance weight body 59 of core pipe 52 inside make 52 deflections of core pipe.

In addition, the core pipe inside in the utility model does not also limit the circular hole that is complete hollow.For example in Fig. 5, bat 60 shown in Figure 6, core pipe 62 is to be processed by an aluminium extruded type, be circular hole except front and back two portions of end office (EO) in its pipe and be provided with internal thread 64 ccontaining and screw togather for balancing weight 66, some support chips 68 that other sections of body inside all have distribution radially and one binding (in the legend are four, also can be other quantity), so more can increase the intensity of core pipe 62, make bat 60 intensity with lifting.Certainly, the utility model is not also got rid of core pipe part and is solid shape.

Then please consulting Fig. 7 again, is the bat 70 of the utility model the 5th preferred embodiment, with preceding take off embodiment maximum different be in, only screw togather a balancing weight 74, core pipe 72 not establishing of rear end pouring weights in order to the front end of batting in this example at core pipe 72 corresponding bats.The bat structure of present embodiment still can reach aforementioned advantages such as gaining in strength, promote batting performance and adjustable bulk wight heart position.

Claims

1. the wooden baseball bat of an improvement is characterized in that, includes:

2. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: the internal face of this core pipe is in holding end position that should main body also is provided with internal thread; Include another balancing weight in addition, this balancing weight be located at this core pipe inside to should the holding end position, simultaneously, this balancing weight surface also be provided with external screw thread and with the internal screw-thread screw of this core pipe.

3. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: the material of this core pipe is a carbon fibre composite.

4. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: this core tube-surface has some raised lines that extend vertically.

5. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: this core pipe inside is not provided with the position of aforementioned internal thread, have the some support chips that distribute radially.

6. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: also including two and fill up body, is mesopore two end positions that are embedded in this main body respectively.

7. according to the wooden baseball bat of the described improvement of claim 6, it is characterized in that wherein: respectively this material of filling up body is a timber.

8. according to the wooden baseball bat of the described improvement of claim 1, it is characterized in that wherein: this main body is that the wooden stick by plural number is put together.