CA2489504A1 - Bumper shaft - Google Patents
Bumper shaft Download PDFInfo
- Publication number
- CA2489504A1 CA2489504A1 CA002489504A CA2489504A CA2489504A1 CA 2489504 A1 CA2489504 A1 CA 2489504A1 CA 002489504 A CA002489504 A CA 002489504A CA 2489504 A CA2489504 A CA 2489504A CA 2489504 A1 CA2489504 A1 CA 2489504A1
- Authority
- CA
- Canada
- Prior art keywords
- bumper
- injection
- tooling
- shaft
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14426—Coating the end of wire-like or rod-like or cable-like or blade-like or belt-like articles
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/56—Devices for protection, storage or transport, e.g. stands or cases
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/22—Field hockey
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/24—Ice hockey
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/20—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00 having means, e.g. pockets, netting or adhesive type surfaces, for catching or holding a ball, e.g. for lacrosse or pelota
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/70—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00 with bent or angled lower parts for hitting a ball on the ground, on an ice-covered surface, or in the air, e.g. for hockey or hurling
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
- A63B60/54—Details or accessories of golf clubs, bats, rackets or the like with means for damping vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/52—Sports equipment ; Games; Articles for amusement; Toys
- B29L2031/5227—Clubs
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
Bumper Material Selection The primary function of the bumper is energy dissipation. The bumper acts to absorb and distribute the shock of an external impact in a direction perpendicular to the line of action of impact.
Cast or foamed elastomeric materials are best suited to this application, there are a variety of candidate materials and vendors to choose from:
Bum er Materials Vendors Thermoplastic Polyurethane RTP, Dow, Bayer, 3M, BASF
Thennoset Polyurethane Cytec, Innovative, DuPont, Bayer, Henkel, BJB E-. nterprises, GE, NuSil Silicone Rubber Dow Corning, Silicones Inc., Bayer Polyisoprene (Natural Rubber)Lavelle Polybutadiene Bayer Polyisobutylene PRC DeSoto Latex Dow, DuPont All of these materials are classified as elastomers and good as dissipating energy from impact.
The range of hardness or Durometer of the bumper could be from 10 Shore A to 80 Shore D depending upon the desired balance between tactical feel and energy dissipation.
Injection Process and Tooling There are a variety of different methods for attachment of the bumper onto the carbon fiber shaft, they include but are not limited to:
In'ection Process Toolin Injection Molding - thermoplasticCNC tool steel or aluminum Injection Over Molding - thermosetCNC tool steel or aluminum, cast .
elastomeric silicone Pressure Molding CNC tool steel or aluminum Compression Molding CNC tool steel or aluminum Gravity Casting CNC tool steel or aluminum Vacuum Castin CNC tool steel or aluminum Secondary Bonding - this meansAluminum or steel alignment to pre- jigs and cure the elastomeric bumper fixtures and then bond or glue the bumper in place on the shaft Elastomers can be cured out from room temperature to elevated temperatures up to the limit of the glass transition temperature of the carbon fiber shaft (290 degrees F).
Over molding can be cast horizontally, vertically or with the tooling oriented at an angle. The injection can take place from either the top or the bottom of the shaft.
Extension of coverage to include the blade A logical extension of the bumper patent is to include the blade. The external periphery (edge) of the blade could be protected with the addition of an elastomeric material. This elastomer would protect the blade not only from impacts with another shaft/blade, but also from contact with the ice.
Generalized Process Specification - Bumner Shaft Tniection:
1. Install injection over molding tooling into injection press
Cast or foamed elastomeric materials are best suited to this application, there are a variety of candidate materials and vendors to choose from:
Bum er Materials Vendors Thermoplastic Polyurethane RTP, Dow, Bayer, 3M, BASF
Thennoset Polyurethane Cytec, Innovative, DuPont, Bayer, Henkel, BJB E-. nterprises, GE, NuSil Silicone Rubber Dow Corning, Silicones Inc., Bayer Polyisoprene (Natural Rubber)Lavelle Polybutadiene Bayer Polyisobutylene PRC DeSoto Latex Dow, DuPont All of these materials are classified as elastomers and good as dissipating energy from impact.
The range of hardness or Durometer of the bumper could be from 10 Shore A to 80 Shore D depending upon the desired balance between tactical feel and energy dissipation.
Injection Process and Tooling There are a variety of different methods for attachment of the bumper onto the carbon fiber shaft, they include but are not limited to:
In'ection Process Toolin Injection Molding - thermoplasticCNC tool steel or aluminum Injection Over Molding - thermosetCNC tool steel or aluminum, cast .
elastomeric silicone Pressure Molding CNC tool steel or aluminum Compression Molding CNC tool steel or aluminum Gravity Casting CNC tool steel or aluminum Vacuum Castin CNC tool steel or aluminum Secondary Bonding - this meansAluminum or steel alignment to pre- jigs and cure the elastomeric bumper fixtures and then bond or glue the bumper in place on the shaft Elastomers can be cured out from room temperature to elevated temperatures up to the limit of the glass transition temperature of the carbon fiber shaft (290 degrees F).
Over molding can be cast horizontally, vertically or with the tooling oriented at an angle. The injection can take place from either the top or the bottom of the shaft.
Extension of coverage to include the blade A logical extension of the bumper patent is to include the blade. The external periphery (edge) of the blade could be protected with the addition of an elastomeric material. This elastomer would protect the blade not only from impacts with another shaft/blade, but also from contact with the ice.
Generalized Process Specification - Bumner Shaft Tniection:
1. Install injection over molding tooling into injection press
2. Mold release the injection over molding tooling
3. Heat tooling to injection temperature
4. Wipe carbon fiber shafts with solvent to remove residual oils and contaminants.
5. Install shafts into injection over molding tooling
6. Apply compression/clamping pressure to shafts with press
7. Connect meter mix dispense equipment to injection port on injection over molding tooling
8. Discharge a metered shot of elastomer into tooling
9. Allow elastomer to cure
10. Demold over molded shafts
11. Clean tool
12. Mold release tool
13. Post cure shaft
14. Repeat Based upon the current process development, the preferred erribodiment should detail the following:
~ Material - Family of Thermoset Polyurethane ~ Durometer - 60-80 Shore A
~ Process = Injection Over Molding ~ Tooling - CNC Aluminum ~ Cure Temperature - 100-180F depending upon cycle time or volume requirements
~ Material - Family of Thermoset Polyurethane ~ Durometer - 60-80 Shore A
~ Process = Injection Over Molding ~ Tooling - CNC Aluminum ~ Cure Temperature - 100-180F depending upon cycle time or volume requirements
Claims
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002489504A CA2489504A1 (en) | 2004-11-25 | 2004-11-25 | Bumper shaft |
| RU2006134050/12A RU2372960C2 (en) | 2004-02-26 | 2005-02-25 | Reinforced shockproof sports handle and method of its manufacture |
| US10/590,701 US8052551B2 (en) | 2004-02-26 | 2005-02-25 | Sports apparatus shaft and blade with added impact protection and method of making same |
| AT05714551T ATE464107T1 (en) | 2004-02-26 | 2005-02-25 | SPORTS EQUIPMENT STICK AND CLUB WITH INCREASED IMPACT PROTECTION AND PRODUCTION METHOD THEREOF |
| CA 2558046 CA2558046C (en) | 2004-02-26 | 2005-02-25 | Sports apparatus shaft and blade with added impact protection and method of making same |
| PCT/CA2005/000309 WO2005082470A1 (en) | 2004-02-26 | 2005-02-25 | Sports apparatus shaft and blade with added impact protection and method of making same |
| DE200560020591 DE602005020591D1 (en) | 2004-02-26 | 2005-02-25 | SPORT APPARATUS AND BOWL WITH INCREASED IMPACT PROTECTION AND METHOD OF MANUFACTURE THEREOF |
| EP20050714551 EP1722871B1 (en) | 2004-02-26 | 2005-02-25 | Sports apparatus shaft and blade with added impact protection and method of making same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002489504A CA2489504A1 (en) | 2004-11-25 | 2004-11-25 | Bumper shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2489504A1 true CA2489504A1 (en) | 2006-05-25 |
Family
ID=36481104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002489504A Abandoned CA2489504A1 (en) | 2004-02-26 | 2004-11-25 | Bumper shaft |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2489504A1 (en) |
-
2004
- 2004-11-25 CA CA002489504A patent/CA2489504A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20070228 |