CN103990260A - Dry land hockey stick and manufacturing method of dry land hockey stick - Google Patents
Dry land hockey stick and manufacturing method of dry land hockey stick Download PDFInfo
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- CN103990260A CN103990260A CN201310671833.6A CN201310671833A CN103990260A CN 103990260 A CN103990260 A CN 103990260A CN 201310671833 A CN201310671833 A CN 201310671833A CN 103990260 A CN103990260 A CN 103990260A
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- club
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Abstract
The invention discloses a dry land hockey stick and a manufacturing method of the dry land hockey stick. The dry land hockey stick comprises a ball hitting plate and a ball hitting rod connected with the ball hitting plate. The ball hitting plate comprises a filling plate, a coating layer arranged outside the filling plate and an abrasion resistant structure arranged on the lower portion of the coating layer. The cross section of the abrasion resistant structure is in a U shape with an upward opening. The upper portion of the abrasion resistant structure is embedded into the positions, on the two sides of the filling plate, of the lower portion of the coating layer, and the lower portion of the abrasion resistant structure is located outside the lower edge of the coating layer. The abrasion resistant structure is made of ultra-high molecular weight polyethylene materials. The dry land hockey stick has the advantages of being good in elasticity, light in overall weight, good in flexibility, high in ball controlling capacity, good in abrasion resistance and sliding performance, small in deformation, high in durability, long in service life and high in ball hitting speed, and the ball hitting plate is not prone to being bent, deformed or cracked.
Description
Technical field
The present invention relates to a kind of sports goods, especially relate to a kind of flexibility good, ability of controlling the ball is strong, can improve wearability and the sliding of striking plate, nonirrigated farmland hockey lever of long service life and preparation method thereof.
Background technology
Common hockey batting ball can only be used on ice, when the hockey batting ball using is used in the motion of nonirrigated farmland, there will be that striking plate sliding is poor on ice, very flexible, ball-handling poor performance, the problem wearing no resistance; And striking plate need to bear powerful moment stress and vibrations, the easy flexural deformation of striking plate or fracture, service life is short.
Chinese patent mandate publication number: CN201049183Y, authorizes open day on April 23rd, 2008, discloses a kind of hockey batting ball, comprises beating part, connection handle, and the centre of beating part is provided with through hole.The weak point of this utility model is to use in nonirrigated farmland.
Summary of the invention
Goal of the invention of the present invention is in order to overcome hockey batting ball of the prior art and to use in nonirrigated farmland motion, there will be that striking plate sliding is poor, very flexible, ball-handling poor performance, wear no resistance, the deficiency that life-span is short, provide a kind of flexibility good, ability of controlling the ball is strong, can improve wearability and the sliding of striking plate, nonirrigated farmland field hockey ball stick of long service life and preparation method thereof.
To achieve these goals, the present invention is by the following technical solutions:
A kind of nonirrigated farmland hockey lever, comprise striking plate and the batting pole being connected with striking plate, described striking plate infill panel, be located at the clad of infill panel outside and be located at the abrasion-proof structure of clad bottom, the cross section of abrasion-proof structure is the U font of opening upwards, abrasion-proof structure top embeds in the clad bottom of infill panel both sides, and it is outside that abrasion-proof structure bottom is positioned at clad lower limb; Described abrasion-proof structure adopts superhigh molecular weight polyethylene material to make.
Common bandy striking plate inside is provided with infill panel, different glass fiber yarn material or the carbon fiber yarn material of the outer covering of striking plate, because the ground smooth degree on land is far away from ice face, the hockey batting ball that same material is made can increase the degree of injury of striking plate during for land ground motion, because sliding is far away from ice face, batting efficiency is not high simultaneously.
Therefore, the present invention has selected ultra-high molecular weight polyethylene PE material to be applied to striking plate bottom margin, with solving bandy, is converted to wearability and the sliding problem after the field hockey of land, and field hockey can extensively be promoted on land.
Ultra-high molecular weight polyethylene PE material is a kind of comprehensive thermoplastic engineering plastic with linear structure, has superpower wearability, cuts intercalation slip, the feature such as strength ratio is higher, stable chemical nature, ageing resistace are strong.While being applied to nonirrigated farmland field hockey, when increasing striking plate wearability, guaranteed the sliding on striking plate and ground.
Because ultra-high molecular weight polyethylene PE material has good wearability, during for striking plate bottom, when guaranteeing batting performance, extended the service life of striking plate.
Because ultra-high molecular weight polyethylene PE material has the good intercalation slip energy of cutting, portion at the bottom of striking plate time, can reduce the friction on striking plate and ground, strengthens its sliding, thereby has alleviated the vibratory sensation of sportsman's hand.
Because ultra-high molecular weight polyethylene PE density of material is little, quality is light, can additionally not increase striking plate adhesive force, and striking plate is difficult for flexural deformation or fracture, and dexterity is good, and striking speed is high.
Therefore, it is good that the present invention has flexibility, and ability of controlling the ball is strong, and wearability and sliding are good, and striking plate is difficult for flexural deformation or fracture, long service life, the feature that striking speed is high.
As preferably, it is 0.067g/cm that described infill panel adopts density
3to 0.5g/cm
3epoxy resin expanded material make.
PU: ecru, density 0.067-0.07g/cm
3during as beater plate inserts, use dexterousr;
RIMA: rice white, density is 0.071-0.075g/cm
3, lightweight, easy plastotype, fatigue resistance is high, and impact resistance is strong, and ductility and very little chi stability are better;
EPXOY: ecru, density is 0.3g-0.5g/cm
3, while being used as beater plate packing material, can increase substantially the durability of beater plate, Reducing distortion amount, increases batting property.
According to the different demands of properties of product, utilize a kind of material in PU, RIMA and EPXOY or three kinds of mutual combination collocations of material are made to infill panel, can strengthen that nonirrigated farmland hockey lever slides and the dexterity of square stance on ice, strengthen the durability of striking plate, improve product life cycle, alleviate the total quality of striking plate, and keep good sliding.
As preferably, the height of described abrasion-proof structure is 3mm-10mm.
The restriction of abrasion-proof structure height makes the existence of abrasion-proof structure can not affect the control performance of striking plate to ball, and does not affect the total quality of striking plate.
As preferably, described abrasion-proof structure front end is positioned at clad lower limb front end, and the abrasion-proof structure rear portion arc that makes progress bends and wrap up clad posterior edges, and abrasion-proof structure top edge is provided with several breach.
As preferably, the material that clad adopts is carbon fiber yarn material or glass fiber yarn material.
A preparation method for nonirrigated farmland hockey lever, comprises the steps:
(6-1) the pre-type of beater plate:
(6-1-1) utilizing plastotype fixture is 10-14cm by length, and width is 2-3.5cm, and the High molecular weight polyethylene sheet that thickness is 0.5-1.2mm is processed into the abrasion-proof structure that cross section is U font;
(6-1-2) block epoxy resin foamed board is cut into the platy structure that thickness is 9-13mm with cutting saw;
(6-1-3) utilize laser cutting machine that platy structure is cut into some for making the pre-template of infill panel;
(6-1-4) at 100 ℃-132 ℃ of temperature, to the pre-template heating and dehumidification of each piece 2-3.5 hour;
(6-1-5) pre-template being put into the first mould adds thermoplastics type and becomes the infill panel have with striking plate identical radian measure, plastotype time: 14-18 minute, temperature: 120 ℃-210 ℃;
(6-1-6) coarse position, infill panel edge is polished flat to cunning;
(6-1-7) on the pre-type fixture of handle, put the first plastic foil pipe that thickness is 0.035-0.05mm and an end closure, the first plastic foil tube opening end inserts after airduct the film seal of tube, air between the first plastic foil pipe and the pre-type fixture of handle is extracted out, made the first plastic foil pipe be adjacent to the pre-type fixture of handle;
(6-1-8), at some layers of carbon fiber of the pre-type fixture of handle outer wrap or glass fiber yarn material, form striking plate handle preform type larvae;
(6-1-9) by infill panel and handle preform type larvae to connecting, in infill panel outside, infill panel and handle preform type larvae connecting portion positive and negative, superscribe some layers of carbon fiber or glass fiber yarn material, abrasion-proof structure is enclosed within on the carbon fiber yarn material of infill panel lower edge, obtains striking plate preform;
(6-1-10) in striking plate preform outside, stick successively outsourcing carbon fiber yarn material and separation cloth, make abrasion-proof structure expose 2mm-3.3mm outside separation cloth; Airduct is removed, and extract the pre-type fixture of handle out, form striking plate preform type larvae;
(6-1-11) striking plate preform type larvae is put into the second mould, handle end opening part access wind-pressure tube is filled with wind and heating to striking plate preform type larvae in mould, makes the young body of striking plate;
(6-1-12) the young body of striking plate is taken out from the second mould, the burr of pruning, striking plate germule completes;
(6-2) the pre-type of club:
(6-2-1) on the pre-type fixture of club, put the second plastic foil pipe that thickness is 0.035 to 0.05mm and one end closure, the second plastic foil tube opening end inserts after airduct the film seal of tube;
(6-2-2) air between the second plastic foil pipe and the pre-type fixture of club is extracted out, made the second plastic foil pipe be adjacent to the pre-type fixture of club;
(6-2-3) at some layers of carbon fiber of the pre-type fixture of club outer wrap or glass fiber yarn material, airduct is removed and extract the pre-type fixture of club out, form club preform type larvae;
(6-2-4) club preform type larvae is put into the 3rd mould, in the 3rd mould, club preform type larvae is filled with to wind and heating, make the young body of club;
(6-2-5) the young body of club is taken out from the 3rd mould, the burr of pruning, club germule completes;
(6-3) club is docked with beater plate, hockey lever completes.
Ultra-high molecular weight polyethylene PE material is wrapped in beater plate bottom margin, when carrying out nonirrigated farmland field hockey, has improved wearability and the sliding capability of striking plate, simultaneously because product itself has different color, and the sight in the time of more strengthening motion.
As preferably, the plastotype temperature of the plastotype fixture in described (6-1-1) is 125 ℃-130 ℃, and the plastotype time is 10-16 minute.
As preferably, the molding time of described second, third mould is 52 minutes-71 minutes, and forming temperature is 101 ℃-132 ℃.
As preferably, the pre-type fixture of handle adopts wooden or aluminum alloy materials to make, and the pre-type fixture of described handle is bar shaped bar, and the cross section of bar shaped bar is square.
As preferably, it is the shaft-like of rectangle that the pre-type fixture of club is cross section.
Therefore, the invention has the beneficial effects as follows: (1) good springiness, total quality is light; (2) flexibility is good, and ability of controlling the ball is strong; (3) wearability and sliding are good; (4) deflection is little, and durability is strong; (5) striking plate is difficult for flexural deformation or fracture, long service life; (6) striking speed is fast.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of nonirrigated farmland of the present invention hockey lever;
Fig. 2 is a kind of structural representation of infill panel of the present invention and the pre-type fixture of handle;
Fig. 3 is a kind of cross sectional representation of striking plate of the present invention;
Fig. 4 is a kind of flow chart of embodiments of the invention;
Fig. 5 is a kind of structural representation of club of the present invention;
Fig. 6 is a kind of structural representation of the thick embryo of striking plate of the present invention.
In figure: infill panel 1, clad 2, abrasion-proof structure 3, V-notch 4, the pre-type fixture 5 of handle, the thick embryo 7 of striking plate, club germule 8.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment is as shown in Figure 1, Figure 3 a kind of nonirrigated farmland hockey lever, comprise striking plate and the batting pole being connected with striking plate, striking plate infill panel 1, be located at the clad 2 of infill panel outside and be located at the abrasion-proof structure 3 of clad bottom, the cross section of abrasion-proof structure is the U font of opening upwards, abrasion-proof structure top embeds in the clad bottom of infill panel both sides, and it is outside that abrasion-proof structure bottom is positioned at clad lower limb; Abrasion-proof structure adopts superhigh molecular weight polyethylene material to make.
It is 0.07g/cm that infill panel adopts density
3p U epoxy resin expanded material make.
The height of abrasion-proof structure is 10mm, and abrasion-proof structure front end is positioned at clad lower limb front end, and the abrasion-proof structure rear portion arc that makes progress bends and wrap up clad posterior edges, and abrasion-proof structure top edge is provided with V-notch 4.The material that clad adopts is carbon fiber yarn material.
As shown in Figure 4, the preparation method of a kind of nonirrigated farmland hockey lever, comprises the steps:
Step 100, the pre-type of beater plate:
Step 101, utilizing plastotype fixture is 15cm by length, and width is 3.5cm, and the High molecular weight polyethylene sheet that thickness is 1mm is processed into the abrasion-proof structure that cross section is U font; Plastotype temperature is 125 ℃, and the plastotype time is 15 minutes.
Step 102, cuts into cutting saw the platy structure that thickness is 12mm by block epoxy resin foamed board;
Step 103, utilizes laser cutting machine that platy structure is cut into for making the pre-template of infill panel;
Step 104, at 130 ℃ of temperature, to the pre-template heating and dehumidification of each piece 2 hours;
Step 105, pre-template is put into the first mould and add thermoplastics type and become the infill panel have with striking plate identical radian measure, the plastotype time: 18 minutes, temperature: 120 ℃;
Step 106, is polished flat cunning by coarse position, infill panel edge;
Step 107, on the pre-type fixture 5 of handle, putting thickness is the first plastic foil pipe of 0.05mm and an end closure, the first plastic foil tube opening end inserts after airduct the film seal of tube, air between the first plastic foil pipe and the pre-type fixture of handle is extracted out, made the first plastic foil pipe be adjacent to the pre-type fixture of handle;
Step 108, at the pre-type fixture of handle outer wrap carbon fiber yarn material, forms striking plate handle preform type larvae; Carbon fiber yarn material is provided with tackifying resin, and the carbon fiber yarn material of adjacent layer is pasted together by resin.
Step 109, as shown in Figure 2, infill panel and 5 pairs of handle preform type larvaes are connected, in infill panel outside, infill panel and handle preform type larvae connecting portion positive and negative, superscribe 4 layers of carbon fiber or glass fiber yarn material, abrasion-proof structure is enclosed within on the carbon fiber yarn material of infill panel lower edge, obtains striking plate preform;
Step 110, sticks outsourcing carbon fiber yarn material and separation cloth successively in striking plate preform outside, makes abrasion-proof structure expose 3.2mm outside separation cloth; Airduct is removed, and extract the pre-type fixture of handle out, form striking plate preform type larvae;
Step 111, puts into the second mould by striking plate preform type larvae, and handle end opening part access wind-pressure tube is filled with wind and heating to striking plate preform type larvae in mould, makes the young body of striking plate; Molding time is 50 minutes, and forming temperature is 132 ℃.
Step 112 is taken out the young body of striking plate from the second mould, and the burr of pruning, obtain striking plate germule 7 as shown in Figure 6;
Step 200, the pre-type of club:
Step 201, on the pre-type fixture of club, putting thickness is the second plastic foil pipe of 0.035mm and an end closure, the second plastic foil tube opening end inserts after airduct the film seal of tube;
Step 202, extracts the air between the second plastic foil pipe and the pre-type fixture of club out, makes the second plastic foil pipe be adjacent to the pre-type fixture of club;
Step 203, at 3 layers of carbon fiber yarn material of the pre-type fixture of club outer wrap, removes airduct and extracts the pre-type fixture of club out, forms club preform type larvae;
Step 204, puts into the 3rd mould by club preform type larvae, in the 3rd mould, club preform type larvae is filled with to wind and heating, makes the young body of club; Molding time is 60 minutes, and forming temperature is 120 ℃.
Step 205 is taken out the young body of club from the 3rd mould, and the burr of pruning, obtain club germule 8 as shown in Figure 5;
Step 300, as shown in Figure 1, docks club with beater plate, joint is provided with binding agent and sponge, and hockey lever completes.
The pre-type fixture of handle adopts wood materials to make, and also can adopt aluminum alloy materials to make, and the pre-type fixture of handle is bar shaped bar, and the cross section of bar shaped bar is square.
Should be understood that the present embodiment is only not used in and limits the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. a nonirrigated farmland hockey lever, it is characterized in that, comprise striking plate and the batting pole being connected with striking plate, described striking plate comprises infill panel (1), be located at the clad (2) of infill panel outside and be located at the abrasion-proof structure (3) of clad bottom, the cross section of abrasion-proof structure is the U font of opening upwards, abrasion-proof structure top embeds in the clad bottom of infill panel both sides, and it is outside that abrasion-proof structure bottom is positioned at clad lower limb; Described abrasion-proof structure adopts superhigh molecular weight polyethylene material to make.
2. nonirrigated farmland according to claim 1 hockey lever, is characterized in that, it is 0.067g/cm that described infill panel adopts density
3to 0.5g/cm
3epoxy resin expanded material make.
3. nonirrigated farmland according to claim 1 hockey lever, is characterized in that, the height of described abrasion-proof structure is 3mm-10mm.
4. nonirrigated farmland according to claim 1 hockey lever, it is characterized in that, described abrasion-proof structure front end is positioned at clad lower limb front end, and the abrasion-proof structure rear portion arc that makes progress bends and wrap up clad posterior edges, and abrasion-proof structure top edge is provided with several breach (4).
5. according to the nonirrigated farmland hockey lever described in claim 1 or 2 or 3 or 4, it is characterized in that, the material that clad adopts is carbon fiber yarn material or glass fiber yarn material.
6. a preparation method for nonirrigated farmland claimed in claim 1 hockey lever, is characterized in that, comprises the steps:
(6-1) the pre-type of beater plate:
(6-1-1) utilizing plastotype fixture is 10-14cm by length, and width is 2-3.5cm, and the High molecular weight polyethylene sheet that thickness is 0.5-1.2mm is processed into the abrasion-proof structure that cross section is U font;
(6-1-2) block epoxy resin foamed board is cut into the platy structure that thickness is 9-13mm with cutting saw;
(6-1-3) utilize laser cutting machine that platy structure is cut into some for making the pre-template of infill panel;
(6-1-4) at 100 ℃-132 ℃ of temperature, to the pre-template heating and dehumidification of each piece 2-3.5 hour;
(6-1-5) pre-template being put into the first mould adds thermoplastics type and becomes the infill panel have with striking plate identical radian measure, plastotype time: 14-18 minute, temperature: 120 ℃-210 ℃;
(6-1-6) coarse position, infill panel edge is polished flat to cunning;
(6-1-7) on the pre-type fixture of handle (5), put the first plastic foil pipe that thickness is 0.035-0.05mm and an end closure, the first plastic foil tube opening end inserts after airduct the film seal of tube, air between the first plastic foil pipe and the pre-type fixture of handle is extracted out, made the first plastic foil pipe be adjacent to the pre-type fixture of handle;
(6-1-8), at some layers of carbon fiber of the pre-type fixture of handle outer wrap or glass fiber yarn material, form striking plate handle preform type larvae;
(6-1-9) by infill panel and handle preform type larvae to connecting, in infill panel outside, infill panel and handle preform type larvae connecting portion positive and negative, superscribe some layers of carbon fiber or glass fiber yarn material, abrasion-proof structure is enclosed within on the carbon fiber yarn material of infill panel lower edge, obtains striking plate preform;
(6-1-10) in striking plate preform outside, stick successively outsourcing carbon fiber yarn material and separation cloth, make abrasion-proof structure expose 2mm-3.3mm outside separation cloth; Airduct is removed, and extract the pre-type fixture of handle out, form striking plate preform type larvae;
(6-1-11) striking plate preform type larvae is put into the second mould, handle end opening part access wind-pressure tube is filled with wind and heating to striking plate preform type larvae in mould, makes the young body of striking plate;
(6-1-12) the young body of striking plate is taken out from the second mould, the burr of pruning, striking plate germule completes;
(6-2) the pre-type of club:
(6-2-1) on the pre-type fixture of club, put the second plastic foil pipe that thickness is 0.035 to 0.05mm and one end closure, the second plastic foil tube opening end inserts after airduct the film seal of tube;
(6-2-2) air between the second plastic foil pipe and the pre-type fixture of club is extracted out, made the second plastic foil pipe be adjacent to the pre-type fixture of club;
(6-2-3) at some layers of carbon fiber of the pre-type fixture of club outer wrap or glass fiber yarn material, airduct is removed and extract the pre-type fixture of club out, form club preform type larvae;
(6-2-4) club preform type larvae is put into the 3rd mould, in the 3rd mould, club preform type larvae is filled with to wind and heating, make the young body of club;
(6-2-5) the young body of club is taken out from the 3rd mould, the burr of pruning, club germule completes;
(6-3) club is docked with beater plate, hockey lever completes.
7. the preparation method of nonirrigated farmland according to claim 6 hockey lever, is characterized in that, the plastotype temperature of the plastotype fixture in described (6-1-1) is 125 ℃-130 ℃, and the plastotype time is 10-16 minute.
8. the preparation method of nonirrigated farmland according to claim 6 hockey lever, is characterized in that, the molding time of described second, third mould is 52 minutes-71 minutes, and forming temperature is 101 ℃-132 ℃.
9. according to the preparation method of the nonirrigated farmland hockey lever described in claim 6 or 7 or 8, it is characterized in that, the pre-type fixture of handle adopts wooden or aluminum alloy materials to make, and the pre-type fixture of described handle is bar shaped bar, and the cross section of bar shaped bar is square.
10. according to the preparation method of the nonirrigated farmland hockey lever described in claim 6 or 7 or 8, it is characterized in that, it is the shaft-like of rectangle that the pre-type fixture of club is cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671833.6A CN103990260B (en) | 2013-12-10 | 2013-12-10 | Nonirrigated farmland hockey lever and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671833.6A CN103990260B (en) | 2013-12-10 | 2013-12-10 | Nonirrigated farmland hockey lever and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103990260A true CN103990260A (en) | 2014-08-20 |
| CN103990260B CN103990260B (en) | 2016-05-11 |
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|---|---|---|---|
| CN201310671833.6A Active CN103990260B (en) | 2013-12-10 | 2013-12-10 | Nonirrigated farmland hockey lever and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106334298A (en) * | 2016-09-23 | 2017-01-18 | 桐乡波力科技复材用品有限公司 | Hockey stick |
| CN106621242A (en) * | 2016-12-21 | 2017-05-10 | 桐乡波力科技复材用品有限公司 | Multi-axis hockey stick and manufacturing method thereof |
| CN108499060A (en) * | 2018-04-18 | 2018-09-07 | 中山市富达运动器材有限公司 | A kind of grid line goalkeeper hockey lever and its production technology |
| CN108525240A (en) * | 2018-04-18 | 2018-09-14 | 中山市富达运动器材有限公司 | A kind of goalkeeper PU expansion types disjunctor carbon plate hockey lever and its production technology |
| CN108527892A (en) * | 2018-04-18 | 2018-09-14 | 中山市富达运动器材有限公司 | A kind of goalkeeper PU foaming hockey levers bottom carbon fiber set and its production technology |
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| CN106334298A (en) * | 2016-09-23 | 2017-01-18 | 桐乡波力科技复材用品有限公司 | Hockey stick |
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| CN108499060A (en) * | 2018-04-18 | 2018-09-07 | 中山市富达运动器材有限公司 | A kind of grid line goalkeeper hockey lever and its production technology |
| CN108525240A (en) * | 2018-04-18 | 2018-09-14 | 中山市富达运动器材有限公司 | A kind of goalkeeper PU expansion types disjunctor carbon plate hockey lever and its production technology |
| CN108527892A (en) * | 2018-04-18 | 2018-09-14 | 中山市富达运动器材有限公司 | A kind of goalkeeper PU foaming hockey levers bottom carbon fiber set and its production technology |
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|---|---|
| CN103990260B (en) | 2016-05-11 |
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Effective date of registration: 20230105 Address after: 60 Jean Paul Kayer Street, Branville, Quebec, Canada J7C0N9 Patentee after: Ball Hockey Co.,Ltd. Address before: No. 199, Fengxiang East Road, wutong Street, Tongxiang City, Jiaxing City, Zhejiang Province 314113 Patentee before: TONGXIANG BONNY SCIENCE & TECHNOLOGY COMPOSITE Co.,Ltd. |
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| CI03 | Correction of invention patent |
Correction item: Patentee Correct: Ball Hockey Co.,Ltd. False: Ball Hockey Co.,Ltd. Number: 03-01 Volume: 39 |
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| CI03 | Correction of invention patent |