GB1436436A - Table-tennis bats - Google Patents

Table-tennis bats

Info

Publication number
GB1436436A
GB1436436A GB5114473A GB5114473A GB1436436A GB 1436436 A GB1436436 A GB 1436436A GB 5114473 A GB5114473 A GB 5114473A GB 5114473 A GB5114473 A GB 5114473A GB 1436436 A GB1436436 A GB 1436436A
Authority
GB
United Kingdom
Prior art keywords
resin
wood
impregnated fibre
layer
bonding
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.)
Expired
Application number
GB5114473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB5114473A priority Critical patent/GB1436436A/en
Priority to ZA00746579A priority patent/ZA746579B/en
Priority to FR7435267A priority patent/FR2249681B1/fr
Publication of GB1436436A publication Critical patent/GB1436436A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary layer
    • 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
    • A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
    • A63B59/42—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis with solid surfaces
    • A63B59/45—Rubber parts thereof; characterised by bonding between a rubber part and the racket body
    • 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
    • A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
    • 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
    • A63B2102/16—Table tennis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/72—Density
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2603/00—Vanes, blades, propellers, rotors with blades

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Laminated Bodies (AREA)

Abstract

1436436 Laminates DUNLOP Ltd 14 Oct 1974 [3 Nov 1973] 51144/73 Heading B5N [Also in Division A6] A laminate is formed of a wood layer sandwiched between two resin-impregnated fibre layers. Preferably, the resin impregnated fibre layer, which is of thickness 0À004 to 0À015 inch, contains by weight 40-60% fibres, and the wood layer which is of thickness 0À125 to 0À25 inch is formed of a low density (#0À45.10<SP>3</SP> kgm.<SP>-3</SP>) wood; e.g. obeche, balsa. In one embodiment, the resin-impregnated fibre layer is formed by the impregnation of a woven fibre sheet with a thermosetting resin, e.g. epoxy, phenolic, polyester or urea-formaldehyde. The fibres themselves are preferably of a low density (#1À6.10<SP>3</SP> kgm.<SP>-3</SP>) high elastic modulus (Young's Modulus #50 GNm.<SP>-2</SP>) type; e.g. aromatic polyamide. The resin impregnated fibre layers may be formed separately and cured before bonding to the wood with a suitable adhesive (e.g. epoxy resin) or may be formed by initially impregnating with resin and then curing and bonding to the wood in a single operation (the resin itself acting as a bonding agent). In the latter case the curing temperature should not exceed 100‹ C. to avoid wood damage; the range 80-100‹ C. being preferable.
GB5114473A 1973-11-03 1973-11-03 Table-tennis bats Expired GB1436436A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB5114473A GB1436436A (en) 1973-11-03 1973-11-03 Table-tennis bats
ZA00746579A ZA746579B (en) 1973-11-03 1974-10-16 Table-tennis bats
FR7435267A FR2249681B1 (en) 1973-11-03 1974-10-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5114473A GB1436436A (en) 1973-11-03 1973-11-03 Table-tennis bats

Publications (1)

Publication Number Publication Date
GB1436436A true GB1436436A (en) 1976-05-19

Family

ID=10458823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5114473A Expired GB1436436A (en) 1973-11-03 1973-11-03 Table-tennis bats

Country Status (3)

Country Link
FR (1) FR2249681B1 (en)
GB (1) GB1436436A (en)
ZA (1) ZA746579B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324400A (en) * 1979-08-08 1982-04-13 Est Industries, Inc. Table tennis bat blade
EP1473064A1 (en) * 2003-04-30 2004-11-03 Tamasu Co., Ltd Blade of a table tennis racket and table tennis racket
FR2883483A1 (en) * 2005-03-22 2006-09-29 Virginie Gamboa Fibrous reinforcing plate for table tennis racket, has fibrous reinforcing frames constituted of carbon, aramid fiber or glass plates, where plates are covered by foam and rubber plates and frames are impregnated with thermosetting resin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417728A1 (en) * 1984-05-12 1985-11-14 Adolf K.W. 7441 Unterensingen Stroh Racket blade for a table tennis racket

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324400A (en) * 1979-08-08 1982-04-13 Est Industries, Inc. Table tennis bat blade
EP1473064A1 (en) * 2003-04-30 2004-11-03 Tamasu Co., Ltd Blade of a table tennis racket and table tennis racket
FR2883483A1 (en) * 2005-03-22 2006-09-29 Virginie Gamboa Fibrous reinforcing plate for table tennis racket, has fibrous reinforcing frames constituted of carbon, aramid fiber or glass plates, where plates are covered by foam and rubber plates and frames are impregnated with thermosetting resin

Also Published As

Publication number Publication date
ZA746579B (en) 1975-11-26
FR2249681B1 (en) 1976-10-22
FR2249681A1 (en) 1975-05-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee