CN201899839U

CN201899839U - Power assisting table tennis bat with built-in spring

Info

Publication number: CN201899839U
Application number: CN2010202639110U
Authority: CN
Inventors: 古国维
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-20
Filing date: 2010-07-20
Publication date: 2011-07-20
Anticipated expiration: 2020-07-20

Abstract

The utility model relates to a power assisting table tennis bat bottom plate with a built-in spring, which is characterized in that a table tennis bat blank to which surface layer wood is not adhered is totally or partially divided into two parts; the divided two parts are connected through a spring body; the spring body adopts the following A, B and C types of elastic materials: the A type of spring steel, the B type of spruce and phoebe blepharopus (which are used for a diving spring board) and the C type of modified engineering rubber; the width d of a division gap is in the range of 1mm to 2mm; the length of the overlapping part of the spring body and a handle is h; and the spring body is arranged below the surface layer wood. Due to the power assisting table tennis bat bottom plate, a table tennis bat has the characteristics that the whole table tennis bat is flexible; a striking region has high elasticity; the striking effect is strong; and the table tennis bat bottom plate is powerful, has superelasticity and enough bottom power and is easy to control. A most visible example for showing the power assisting effect of the spring is that in the Paralympic Games in 2008, a South African athlete who has a nickname of ''The Blade'' and is a double amputee creates a 100-meter speed miracle by special spring legs.

Description

The assistance type table tennis bat of built-in spring

Technical field

The utility model relates to a kind of base plate of ping-pong bat., say the assistance type base plate of ping-pong bat that relates to a kind of built-in spring definitely.

Background technology

In recent years along with the raising of table tennis status and the aggravation of competition, the sportsman requires to provide better racket to give full play to self potential. say that simply professional racket should be powerful, super bullet, end strength foot and the racket controlled well and for adapting to this mainstream technology of loop drive, good whiplash effect also should be arranged, but commercially available base plate is all elasticity, speed is got up with the control opposition, many commercially available base plates all mark straight line, a side is an elasticity to the right, and the model base plate elasticity that selection is kept right more is sufficient more, and speed is fast more, but it is poor more to control, the opposite model base plate elasticity that keeps left more is more little, and speed is slow more, but control is good more, as seen also do not have elasticity, speed appears on the market with the racket of control compatibility.

Summary of the invention

The purpose of this utility model solves elasticity exactly, and the difficult problem that speed and control can not be compatible makes racket really accomplish brute force, super bullet, and end strength is controlled ball enough.

For realizing purpose the utility model by the following technical solutions:

Its enough firm bullet is accomplished with composite by the batting district of base plate, and------like this could be powerful, super bullet, end strength foot, should accomplish that simultaneously base plate overall flexibility good-----like this holding time is long, just the said ball of eating of table tennis fan is promptly controlled ball. employing be revolutionary way: the batting district of base plate. with handle fully or local detachment, connecting so not only with spring then, base plate integral body softens, spring can also provide power-assisted. example the most directly perceived of spring assist, be shown in Figure 1 08 year Paralympic Games South Africa nickname " Blade " both legs amputation sportsman by special spring leg, its hundred meters speed can compare so as to see who is superior with the world first-class sprinter who perfects health.

Provide the theoretical proof that the racket power-assisted is provided about spring below:

If the racket quality is m, player's muscle working of swinging the bat is w, and racket is h by gravitional force height under the Back stroke, and it is d that racket handle is clapped amount of deflection to striking point on the ball with respect to theoretical rigidity, and then the kinetic energy conversion formula is

1/2m×v×v＝m×g×h+1/2×k×d×d+w

1/2 * k wherein * d * d is exactly the contribution of spring assist, also is the difference with respect to the rigidity racket.

This shows to the utility model has the advantages that racket is become to soften, control well, help the power effect simultaneously thereby eat ball, make that to hit ball speed faster, rotate byer force, really can accomplish elasticity, speed, rotation is compatible with control, thereby creates the incomparable remarkable base plate of ping-pong bat of a performance.

Description of drawings

The both legs amputation sportsman of Fig. 1 South Africa nickname " Blade " and special spring leg

The assistance type base plate of ping-pong bat of the built-in spring of Fig. 2 cuts release plane entirely

The assistance type base plate of ping-pong bat of the built-in spring of Fig. 3 partly cuts release plane

The assistance type base plate of ping-pong bat construction profile of the built-in spring of Fig. 4

Wherein:

1. cut-off rule 2. spring bodies 3. face side layers 4. block board 5. stitch fillers 6. handles

The specific embodiment

Accompanying drawings is as follows: the end embryo of not pasting surface layer wood as yet of choosing firm bullet, along Fig. 2 (fully separate) or Fig. 3 (local detachment) cut-off rule 1 end embryo is cut and to allow top and the spaced apart slit width d in bottom, embed elastomeric material 2 then, elastomeric material has following A, B, three types of C, A type: spring steel, Type B: China fir nanmu (diving springboard with wood), the C type: modification engineering rubber wherein A type can intuitively be inspected Type B C type by magnet and can find out by handle side.The elastomeric material upper end that embeds should be inserted and overlap wide h in the handle mutually, filling sponge in slit width d, or the used for electronic device insulating cement Shin-Etsu of very soft bullet (a kind of Japan produce and solidify after still the used for electronic device insulating cement of very soft bullet) still after a kind of curing, purpose is when preventing spreading glue, and glue infiltrates the slit top and bottom are coupled together again.Next step be smear be impregnated with extraordinary resin additive P1 and TiO2 nano material making high-performance fiber composite bottom board with resin dedicated, multiple upper layer wood 3 is sent into the platen-press pressurization, elastomeric material and end embryo that order embeds, and surface layer wood can closely cement with end embryo, solidify the back and paste upper handle 6, base plate is promptly accused completion.

Application example: get a carbon fibre base plate stock of not pasting surface layer wood as yet, allow top and the spaced apart slit width 2mm in bottom by above-mentioned shown in Figure 2 end embryo is cut, paste 20 (wide) * 40 (length) * 0.02 (thick) mm high-quality spring steel plates on bat midline shown in Figure 2 two sides, allow it embed end embryo to pasting the spring steel plate pressurization, fill between the slit Shin-Etsu (a kind of Japan produce and solidify after still the used for electronic device insulating cement of very soft bullet) smear make the ball plate with special epoxy resin after multiple upper layer wood 3 send into the platen-press pressurization, elastomeric material and end embryo that order embeds, and surface layer wood can closely cement with end embryo, solidify the back and paste upper handle 6, base plate is promptly accused completion.

Claims

1. the assistance type base plate of ping-pong bat of a built-in spring is characterized in that being built-in with spring body.

2. the assistance type base plate of ping-pong bat of a kind of built-in spring according to claim 1 is characterized in that the racket of not pasting surface layer wood is clapped embryo to be done to embed spring body more fully or after the local segmentation, couples together cutting apart back two parts.

3. the assistance type base plate of ping-pong bat of a kind of built-in spring according to claim 1 is characterized in that as the elastomeric material of spring body following A being arranged, B, three types of C, A type: spring steel, Type B: China fir nanmu, C type: modification engineering rubber.

4. the assistance type base plate of ping-pong bat of a kind of built-in spring according to claim 1 is characterized in that the complete or local segmentation of described base board of table tennis bat, stitch wide d 1mm---2mmm and in seam filling sponge, or the used for electronic device insulating cement of very soft bullet still after a kind of curing.

5. the assistance type base plate of ping-pong bat of a kind of built-in spring according to claim 1 is characterized in that spring body and handle have the long h of overlap joint.

6. the assistance type base plate of ping-pong bat of a kind of built-in spring according to claim 1 is characterized in that spring body places under the surface layer wood.