WO2005123199A2 - One-piece and multi-piece hockey sticks, and bending device for adjusting such hockey sticks - Google Patents

One-piece and multi-piece hockey sticks, and bending device for adjusting such hockey sticks Download PDF

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Publication number
WO2005123199A2
WO2005123199A2 PCT/DE2005/001104 DE2005001104W WO2005123199A2 WO 2005123199 A2 WO2005123199 A2 WO 2005123199A2 DE 2005001104 W DE2005001104 W DE 2005001104W WO 2005123199 A2 WO2005123199 A2 WO 2005123199A2
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WO
WIPO (PCT)
Prior art keywords
club
blade
hockey stick
shaft
hockey sticks
Prior art date
Application number
PCT/DE2005/001104
Other languages
German (de)
French (fr)
Other versions
WO2005123199A3 (en
Inventor
Ernst R. Woehr
Dieter G. Bulling
Original Assignee
Tk Hockey Equipment Gmbh
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 Tk Hockey Equipment Gmbh filed Critical Tk Hockey Equipment Gmbh
Publication of WO2005123199A2 publication Critical patent/WO2005123199A2/en
Publication of WO2005123199A3 publication Critical patent/WO2005123199A3/en

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Classifications

    • 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
    • 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
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • 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
    • A63B2209/023—Long, oriented fibres, e.g. wound filaments, woven fabrics, mats

Definitions

  • the invention relates to single and multi-part hockey sticks, in particular field or ice hockey sticks, with the features of claim 1 and a bending device for adjusting such single and multi-part hockey sticks with the features of claim 9.
  • thermosetting co-positives such as. B. epoxy resin, polyester resin or vinyl ester resin.
  • a disadvantage of these hockey sticks of the prior art is their low impact strength relative to the requirements of the game operation, which means that at least professional ice hockey players wear several tens of sticks per season due to breakage.
  • a disadvantage of these hockey sticks of the prior art are also their high cycle times during production, whereby cycle times of at least 30 min. Even with highly reactive thermosets, in which material shrinkage and warpage are described as normal. and with subsequent mold cleaning, much more can be achieved.
  • thermosetting composites have the further disadvantage that their shape is clearly defined during manufacture, so that for the particular particular curvature and / or entanglement of the blade / club and / or specific angle of the blade / club preferred by professional ice hockey players Shaft many different ones Tools have to be kept in stock, although most ice hockey players have to make compromises, as not every tool has its own tool.
  • the object of the invention is to provide improved one-part and multi-part hockey sticks, in particular field or ice hockey sticks, with impact strength sufficient for game operation, reduced cycle times in the production and reduced number of tools for sticks of different bending and / or entanglement of the blade / club and / or specific angle from blade / lobe to shaft.
  • Another object of the invention is to provide a bending device for adjusting the one-part and multi-part
  • the blade / club and shaft of single and multi-part hockey sticks are provided with fiber composite material with a thermoplastic matrix, so that they have the advantage of being deformable under heat and all the bends and angles while heating the blade / club and Shaft can be adjusted individually and as often as desired, but the material is not structurally is weakened.
  • the one-part and multi-part hockey stick in particular field or ice hockey stick, can be produced with fiber composite material with a thermoplastic matrix with a tool and then individually optimally adjusted under heat, so that for. B. each field or ice hockey professional the preferred special bending and / or entanglement of the blade / club and / or specific angles of the blade / club to the shaft are adjustable.
  • the clearly improved cycle times in the manufacture of the one-part and multi-part hockey sticks according to the invention, in particular field or ice hockey sticks, are between 2 and 3 minutes.
  • a further advantage of the single and multi-part hockey sticks according to the invention, in particular field or ice hockey sticks, lies in their essentials Improved impact strength, so that with a one-part and multi-part hockey stick according to the invention, in particular field or ice hockey sticks, an entire season is likely to be contestable without the need for replacement.
  • the fiber composite material contains reinforcing fibers made of carbon, glass or aramid fibers.
  • thermoplastic matrix of 'polyamides, - polybutylene terephthalate, polypropylene, polyphenylene sulfide or polyetheretherketone is thermoplastic matrix of 'polyamides, - polybutylene terephthalate, polypropylene, polyphenylene sulfide or polyetheretherketone.
  • the blade and / or shaft have locally different stiffnesses for improved handling and playability.
  • locally different stiffnesses in the blade and in the blade / shaft transition area for optimized stability are provided with separate inserts made of fiber-reinforced plastic, in particular in
  • the inserts are preferably made of the same material, in particular thermoplastic matrix + reinforcing fiber, are produced by the injection molding process and at
  • Manufacturing process of the racket is automatically melted or welded.
  • the shaft and / or the shovel / club have locally different weights in order to optimize the balance of the one-part and multi-part hockey stick according to the invention.
  • the shaft and / or the shovel / club have locally different fiber types for strengthening areas of the one-part and multi-part hockey stick according to the invention that are particularly prone to breakage.
  • Weight shifts and also several layers can be achieved by 2- and / or 3-dimensional weaving or knitting of different types of fibers, thread weights and thread layers, so that it is not necessary to build up layers of several individual layers as usual.
  • a bending device with a heating device is provided for heating and adjusting the particular bending and / or entanglement of the blade / club and / or specific angle of the blade / club to the shaft of the one-part and multi-part hockey stick according to the invention.
  • Fig. 1 a one- and multi-part hockey stick according to the invention.
  • a single and multi-part hockey stick 1 has a shaft 2 and a blade / club 3 made of fiber composite material with a thermoplastic matrix.
  • the fiber composite material contains reinforcing fibers made of carbon, glass or aramid fibers and fiber fibers drawn in fiber form, which are mixed together, the ratio of reinforcing fiber to matrix fiber in the volume fraction being precisely adjustable.
  • the threads obtained from reinforcement and matrix fibers are further processed into "tailor-made" tubular knitted fabrics with various stiffnesses and adjustable weights at special points by means of 2-dimensional and / or 3-dimensional weaving or
  • thermoplastic matrix consists of polyamides, polybutylene terephthalate, polypropylene, polyphenyl sulfide or polyether ether ketone.
  • Semi-finished product (not shown) is a single layer in which reinforcing fiber and matrix are already contained. Local reinforcements of low mass are achieved by separate inserts.
  • Separate reinforcement inserts e.g. B. in honeycomb form are used for locally different stiffness in the blade / club and in the transition area blade / shaft for optimized stability. Locally different stiffnesses are achieved in the shaft through the number, orientation and type of fibers.
  • a bending device (not shown) with a heating device is provided, into which single and multi-part hockey sticks 1 can be inserted, for heating and subsequent adjustment of the particular bending and / or entanglement of the blade / club and / or specific angle of the blade / club to the shaft of the one and multi-part hockey stick 1, in particular according to individual specifications.
  • the semi-finished tube created is placed in a tool designed as a two-part open mold (not shown) and inserts are inserted and placed in the semi-finished tube.
  • the inserts are made from the same material as the semi-finished product, namely from thermoplastic matrix + reinforcing fiber, are produced by injection molding and are automatically melted or welded in during the manufacturing process of the racket.
  • a slightly conical core made of a highly thermally conductive metal is inserted through the end of the semifinished product tube, which is encased in a particularly high silicone rubber
  • the core is heated or cooled.
  • the mold is closed and the mold and core are heated depending on the material of the matrix. If PA is the material of the matrix, it is heated to approx. 220 ° C.
  • the core is fully pressed in. Form and core expand and create pressure. After 2-3 min. at 220 ° C, the mold and core can be cooled to below 150 ° C and the single and multi-part hockey stick 1 can be removed from the mold. 2.
  • Bladder molding internal inflation process
  • the semi-finished tube is provided with a film tube made of a material with a higher melting point than the matrix system used.
  • the film tube is welded closed at the shaft / blade transition and provided with a valve at the end of the shaft.
  • the semi-finished tube is placed in the mold designed as a mold and the mold is closed.
  • the film tube is inflated to pressure and the mold is heated. After 2-3 min. the tool can be cooled at 220 ° C. and the one-part and multi-part hockey stick 1 can be removed from the mold.

Abstract

The invention relates to one-piece and multi-piece hockey sticks (1), particularly field hockey or ice hockey sticks, comprising a club or a blade (3) and a shaft (2) made of composite fiber material with a thermoplastic matrix.

Description

Ein- und mehrteilige Hockeyschläger und Biegevorrichtung zur Einstellung solcher Hockeyschläger Single and multi-part hockey sticks and bending device for setting such hockey sticks
Die Erfindung betrifft ein- und mehrteilige Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, mit den Merkmalen des Anspruchs 1 und eine Biegevorrichtung zur Einstellung solcher ein- und mehrteiligen Hockeyschläger mit den Merkmalen des Anspruchs 9.The invention relates to single and multi-part hockey sticks, in particular field or ice hockey sticks, with the features of claim 1 and a bending device for adjusting such single and multi-part hockey sticks with the features of claim 9.
Herkömmliche Hockeyschläger sind aus duroplastischen Co positen, wie z. B. Epoxidharz, Polyesterharz oder Vinylesterharz gefertigt. Nachteilig bei diesen Hockeyschlägern des Standes der Technik ist deren relativ zu den Erfordernissen des Spielbetriebs niedrige Schlagzähigkeit, die dazu führt, dass zumindest professionelle Eishockey- Spieler durch Bruch mehrere -zig Schläger pro Saison verschleißen. Nachteilig bei diesen Hockeyschlägern des Standes der Technik sind auch deren hohe Taktzeiten bei der Herstellung, wobei selbst mit höchst reaktiven Duroplasten, bei denen Materialschwund und Verzug als ■ normal bezeichnet werden, Taktzeiten von mindestens 30 min. und mit anschließender Formreinigung noch deutlich mehr, erreicht werden. Herkömmliche Hockeyschläger aus duroplastischen Compositen weisen weiter den Nachteil auf, dass deren Form bei der Herstellung eindeutig festgelegt ist, so dass für die von professionellen Eishockeyspielern bevorzugte jeweilige besondere Biegung und/oder Verschränkung der Schaufel/Keule und/oder spezifische Winkel von Schaufel/Keule zum Schaft viele verschiedene Werkzeuge vorzuhalten sind, wobei dennoch die meisten Eishockeyspieler Kompromisse eingehen müssen, da nicht für jeden ein eigenes Werkzeug verfügbar ist.Conventional hockey sticks are made of thermosetting co-positives, such as. B. epoxy resin, polyester resin or vinyl ester resin. A disadvantage of these hockey sticks of the prior art is their low impact strength relative to the requirements of the game operation, which means that at least professional ice hockey players wear several tens of sticks per season due to breakage. A disadvantage of these hockey sticks of the prior art are also their high cycle times during production, whereby cycle times of at least 30 min. Even with highly reactive thermosets, in which material shrinkage and warpage are described as normal. and with subsequent mold cleaning, much more can be achieved. Conventional hockey sticks made of thermosetting composites have the further disadvantage that their shape is clearly defined during manufacture, so that for the particular particular curvature and / or entanglement of the blade / club and / or specific angle of the blade / club preferred by professional ice hockey players Shaft many different ones Tools have to be kept in stock, although most ice hockey players have to make compromises, as not every tool has its own tool.
Aufgabe der Erfindung ist es, verbesserte ein- und mehrteilige Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, zu schaffen mit für den Spielbetrieb ausreichender Schlagzähigkeit, reduzierten Taktzeiten bei der Herstellung und reduzierter Anzahl von Werkzeugen für Schläger unterschiedlicher Biegung und/oder Verschränkung der Schaufel/Keule und/oder spezifischer Winkel von Schaufel/Keule zum Schaft.The object of the invention is to provide improved one-part and multi-part hockey sticks, in particular field or ice hockey sticks, with impact strength sufficient for game operation, reduced cycle times in the production and reduced number of tools for sticks of different bending and / or entanglement of the blade / club and / or specific angle from blade / lobe to shaft.
Eine weitere Aufgabe der Erfindung ist es, eine Biegevor- richtung zur Einstellung der ein- und mehrteiligenAnother object of the invention is to provide a bending device for adjusting the one-part and multi-part
Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, auf individuelle Bedürfnisse und/oder Wünsche von Spielern zu schaffen.To create hockey sticks, especially field or ice hockey sticks, to meet individual needs and / or desires of players.
Die Lösung erfolgt mit ein- und mehrteiligen Hockeyschlägern, insbesondere Feld- oder Eishockeyschlägern, mit den Merkmalen des Anspruchs 1 und einer Biegevorrichtung zur Einstellung solcher ein- und mehrteiliger Hockeyschläger mit den Merkmalen des Anspruchs 9.The solution is achieved with single and multi-part hockey sticks, in particular field or ice hockey sticks, with the features of claim 1 and a bending device for adjusting such single and multi-part hockey sticks with the features of claim 9.
Gemäß der Erfindung sind Schaufel/Keule und Schaft ein- und mehrteiliger Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, mit Faserverbundwerkstoff mit thermoplastischer Matrix versehen, so dass diese den Vorteil der Rückverformbarkeit unter Wärme aufweisen und sämtliche Biegungen und Winkel unter Erwärmung von Schaufel/Keule und Schaft individuell exakt und beliebig oft einstellbar sind, wobei das Material strukturell nicht geschwächt wird. Erfindungsgemäß ist der ein- und mehrteilige Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, mit Faserverbundwerkstoff mit thermoplastischer Matrix mit einem Werkzeug herstellbar und anschließend unter Wärmebeaufschlagung individuell optimal einstellbar, so dass für z. B. jeden Feld- oder Eishockey-Profi die bevorzugte besondere Biegung und/oder Verschränkung der Schaufel/Keule und/oder spezifische Winkel von Schaufel/Keule zum Schaft einstellbar sind. Die deutlich verbesserten Taktzeiten bei der Herstellung der erfindungsgemäßen ein- und mehrteiligen Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, liegen zwischen 2 und 3 min.. Ein weiterer Vorteil der erfindungsgemäßen ein- und mehrteiligen Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, liegt in deren wesentlich verbesserter Schlagzähigkeit, so dass mit einem erfindungsgemäßen ein- und mehrteiligen Hockeyschläger, insbesondere Feld- oder Eishockeyschläger, voraussichtlich eine ganze Saison bestreitbar ist ohne Ersatzbedarf.According to the invention, the blade / club and shaft of single and multi-part hockey sticks, in particular field or ice hockey sticks, are provided with fiber composite material with a thermoplastic matrix, so that they have the advantage of being deformable under heat and all the bends and angles while heating the blade / club and Shaft can be adjusted individually and as often as desired, but the material is not structurally is weakened. According to the one-part and multi-part hockey stick, in particular field or ice hockey stick, can be produced with fiber composite material with a thermoplastic matrix with a tool and then individually optimally adjusted under heat, so that for. B. each field or ice hockey professional the preferred special bending and / or entanglement of the blade / club and / or specific angles of the blade / club to the shaft are adjustable. The clearly improved cycle times in the manufacture of the one-part and multi-part hockey sticks according to the invention, in particular field or ice hockey sticks, are between 2 and 3 minutes. A further advantage of the single and multi-part hockey sticks according to the invention, in particular field or ice hockey sticks, lies in their essentials Improved impact strength, so that with a one-part and multi-part hockey stick according to the invention, in particular field or ice hockey sticks, an entire season is likely to be contestable without the need for replacement.
Gemäß einer bevorzugten Ausgestaltung der Erfindung enthält der Faserverbundwerkstoff Verstärkungsfasern aus Kohle-, Glas- oder Aramidfasern.According to a preferred embodiment of the invention, the fiber composite material contains reinforcing fibers made of carbon, glass or aramid fibers.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung besteht die thermoplastische Matrix aus' Polyamiden,- Polybuthylenterephthalat, Polypropylen, Polyphenylsulfid oder Polyetheretherketon.According to a further preferred embodiment of the invention, the thermoplastic matrix of 'polyamides, - polybutylene terephthalate, polypropylene, polyphenylene sulfide or polyetheretherketone.
Gemäß einer weiteren bevorzugten Ausgestaltung derAccording to a further preferred embodiment of the
Erfindung weisen Schaufel und/oder Schaft für verbesserte Handhabbarkeit und Spielbarkeit lokal unterschiedliche Steifigkeiten auf. Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung sind lokal unterschiedliche Steifigkeiten in der Schaufel und im Übergangsbereich Schaufel/Schaft für optimierte Stabilität mit separaten Einlegern aus faserverstärktem Kunststoff, insbesondere inAccording to the invention, the blade and / or shaft have locally different stiffnesses for improved handling and playability. According to a further preferred embodiment of the invention, locally different stiffnesses in the blade and in the blade / shaft transition area for optimized stability are provided with separate inserts made of fiber-reinforced plastic, in particular in
Bienenwabenform und im Schaft durch Anzahl, Orientierung und Art der Fasern ausgestaltet. Vorzugsweise sind die Einleger aus dem gleichen Material, insbesondere thermoplastischer Matrix + Verstärkungsfaser, werden im Spritzgießverfahren hergestellt und beimHoneycomb shape and shaped in the shaft by the number, orientation and type of fibers. The inserts are preferably made of the same material, in particular thermoplastic matrix + reinforcing fiber, are produced by the injection molding process and at
Herstellungsvorgang des Schlägers automatisch mit eingeschmolzen, bzw. eingeschweißt.Manufacturing process of the racket is automatically melted or welded.
Gemäß einer weiteren bevorzugten Ausgestaltung der Erfindung weisen der Schaft und/oder die Schaufel/Keule zur Optimierung der Balance des erfindungsgemäßen ein- und mehrteiligen Hockeyschlägers lokal unterschiedliche Gewichte auf.According to a further preferred embodiment of the invention, the shaft and / or the shovel / club have locally different weights in order to optimize the balance of the one-part and multi-part hockey stick according to the invention.
Gemäß einer weiteren bevorzugten Ausgestaltung derAccording to a further preferred embodiment of the
Erfindung weisen der Schaft und/oder die Schaufel/Keule zur Stärkung besonders bruchgefährdeter Stellen des erfindungsgemäßen ein- und mehrteiligen Hockeyschlägers lokal unterschiedliche Faserarten auf. Durch Einlegen einzelner Gewebelagen und/oder Faserbündel, insbesondere mit maßgeschneiderten Gestricken, sind unterschiedliche Charakteristiken, wie z. B. Steifigkeit,The shaft and / or the shovel / club have locally different fiber types for strengthening areas of the one-part and multi-part hockey stick according to the invention that are particularly prone to breakage. By inserting individual fabric layers and / or fiber bundles, in particular with tailored knitted fabrics, different characteristics, such as. B. rigidity,
Gewichtsverlagerungen und auch mehrere Schichten durch 2- und/oder 3-dimensionales Weben oder Verstricken verschiedener Faserarten, Fadengewichte und Fadenschichten erreichbar, so dass nicht wie üblich ein Lagenaufbau von mehreren einzelnen Lagen erforderlich ist. Gemäß einem weiteren Aspekt der Erfindung ist eine Biegevorrichtung mit Heizvorrichtung vorgesehen zur Erwärmung und Einstellung der besonderen Biegung und/oder Verschränkung der Schaufel/Keule und/oder spezifischer Winkel von Schaufel/Keule zum Schaft des erfindungsgemäßen, ein- und mehrteiligen Hockeyschlägers.Weight shifts and also several layers can be achieved by 2- and / or 3-dimensional weaving or knitting of different types of fibers, thread weights and thread layers, so that it is not necessary to build up layers of several individual layers as usual. According to a further aspect of the invention, a bending device with a heating device is provided for heating and adjusting the particular bending and / or entanglement of the blade / club and / or specific angle of the blade / club to the shaft of the one-part and multi-part hockey stick according to the invention.
Die Erfindung wird im Folgenden anhand eines bevorzugten Äusführungsbeispiels dargestellt. Es zeigt:The invention is illustrated below with the aid of a preferred exemplary embodiment. It shows:
Fig. 1: einen erfindungsgemäßen, ein- und mehrteiligen Hockeyschläger.Fig. 1: a one- and multi-part hockey stick according to the invention.
Fig. 1: Ein ein- und mehrteiliger Hockeyschläger 1 weist einen Schaft 2 und eine Schaufel/Keule 3 aus Faserverbundwerkstoff mit thermoplastischer Matrix auf. Der Faserverbundwerkstoff enthält Verstärkungsfasern aus Kohle-, Glasoder Aramidfasern und in Faserform gezogene Matrixfasern, die miteinander vermischt sind, wobei das Verhältnis von Verstärkungsfaser zu Matrixfaser im Volumenanteil genau einstellbar ist. Die aus Verstärkungs- und Matrixfaser erhaltenen Fäden werden zu „maßgeschneiderten" Schlauchgestricken weiterverarbeitet mit verschiedenen Steifigkeiten und einstellbaren Gewichten an besonderen Stellen durch 2- und/oder 3-dimensionales Weben oderFig. 1: A single and multi-part hockey stick 1 has a shaft 2 and a blade / club 3 made of fiber composite material with a thermoplastic matrix. The fiber composite material contains reinforcing fibers made of carbon, glass or aramid fibers and fiber fibers drawn in fiber form, which are mixed together, the ratio of reinforcing fiber to matrix fiber in the volume fraction being precisely adjustable. The threads obtained from reinforcement and matrix fibers are further processed into "tailor-made" tubular knitted fabrics with various stiffnesses and adjustable weights at special points by means of 2-dimensional and / or 3-dimensional weaving or
Verstricken verschiedener Faserarten, Fadengewichte und Fadenschichten (nicht dargestellt) des Schafts 2. Die verschiedenen Steifigkeiten und einstellbaren Gewichte werden durch Faserorientierung, Schichtstärke, Anzahl und Art der Verstärkungsfasern gebildet. Die thermoplastische Matrix besteht aus Polyamiden, Polybuthylenterephthalat, Polypropylen, Polyphenylsulfid oder Polyetheretherketon.Knit various types of fibers, thread weights and thread layers (not shown) of the shaft 2. The different stiffnesses and adjustable weights are formed by fiber orientation, layer thickness, number and type of reinforcing fibers. The thermoplastic matrix consists of polyamides, polybutylene terephthalate, polypropylene, polyphenyl sulfide or polyether ether ketone.
Halbzeug (nicht dargestellt) ist eine einzige Lage, in welcher Verstärkungsfaser und Matrix bereits enthalten sind. Örtliche Verstärkungen geringer Masse werden erreicht durch separate Einleger.Semi-finished product (not shown) is a single layer in which reinforcing fiber and matrix are already contained. Local reinforcements of low mass are achieved by separate inserts.
Separate Verstärkungseinleger z. B. in Bienenwabenform werden für lokal unterschiedliche Steifigkeiten in der Schaufel-/Keule und im Übergangsbereich Schaufel/Schaft für optimierte Stabilität verwendet. Im Schaft werden lokal unterschiedliche Steifigkeiten durch Anzahl, Orientierung und Art der Fasern erreicht.Separate reinforcement inserts e.g. B. in honeycomb form are used for locally different stiffness in the blade / club and in the transition area blade / shaft for optimized stability. Locally different stiffnesses are achieved in the shaft through the number, orientation and type of fibers.
Eine Biegevorrichtung (nicht dargestellt) mit Heizvorrichtung ist vorgesehen, in die ein- und mehrteilige Hockeyschläger 1 eingelegt werden können, zur Erwärmung und anschließenden Einstellung der besonderen Biegung und/oder Verschränkung der Schaufel/Keule und/oder spezifischer Winkel von Schaufel/Keule zum Schaft des ein- und mehrteiligen Hockeyschlägers 1, insbesondere nach individuellen Vorgaben.A bending device (not shown) with a heating device is provided, into which single and multi-part hockey sticks 1 can be inserted, for heating and subsequent adjustment of the particular bending and / or entanglement of the blade / club and / or specific angle of the blade / club to the shaft of the one and multi-part hockey stick 1, in particular according to individual specifications.
Verfahren zur Herstellung der ein- und mehrteiligen Hockeyschläger 1Process for the production of single and multi-part hockey sticks 1
Alternativ sind 2 Verfahren vorgesehen. 1. Compression Moulding (Pressverfahren)Alternatively, two methods are provided. 1. Compression molding
Der erstellte Halbzeugschlauch wird in ein als 2-teilige geöffnete Form (nicht dargestellt) ausgebildetes Werkzeug gelegt und Einleger in den- Halbzeugschlauch eingeschoben und platziert. Die Einleger sind aus dem gleichen Material wie das Halbzeug, nämlich aus thermoplastische Matrix + Verstärkungsfaser, werden im Spritzgießverfahren hergestellt und beim Herstellvorgang des Schlägers automatisch mit eingeschmolzen oder eingeschweißt.The semi-finished tube created is placed in a tool designed as a two-part open mold (not shown) and inserts are inserted and placed in the semi-finished tube. The inserts are made from the same material as the semi-finished product, namely from thermoplastic matrix + reinforcing fiber, are produced by injection molding and are automatically melted or welded in during the manufacturing process of the racket.
Durch das Ende des Halbzeugschlauchs wird ein im vorderen Drittel leicht konischer Kern aus einem hoch wärmeleitfähigem Metall eingeführt, der umhüllt ist von Silikonkautschuk mit einem besonders hohenA slightly conical core made of a highly thermally conductive metal is inserted through the end of the semifinished product tube, which is encased in a particularly high silicone rubber
Wärmedehnungskoeffizienten. Der Kern wird beheizt oder gekühlt. Die Form wird geschlossen und Form und Kern werden in Abhängigkeit vom Werkstoff der Matrix beheizt. Ist PA der Werkstoff der Matrix wird auf ca. 220° C beheizt. Der Kern wird voll eingepresst. Form und Kern expandieren und erzeugen Pressung. Nach 2-3 min. bei 220° C kann Form und Kern auf unter 150° C gekühlt und der ein- und mehrteilige Hockeyschläger 1 entformt werden. 2. Bladder Moulding (Innenaufblasverfahren)Thermal expansion coefficients. The core is heated or cooled. The mold is closed and the mold and core are heated depending on the material of the matrix. If PA is the material of the matrix, it is heated to approx. 220 ° C. The core is fully pressed in. Form and core expand and create pressure. After 2-3 min. at 220 ° C, the mold and core can be cooled to below 150 ° C and the single and multi-part hockey stick 1 can be removed from the mold. 2. Bladder molding (internal inflation process)
Der Halbzeugschlauch wird innen mit einem Folienschlauch aus einem Material mit einem höheren Schmelzpunkt als das verwendete Matrixsystem versehen. Der Folienschlauch wird am Übergang Schaft/Blade zugeschweißt und am Schaftende mit einem Ventil versehen. Der Halbzeugschlauch wird in das als Form ausgebildete Werkzeug gelegt und die Form geschlossen. Der Folienschlauch wird bis auf Pressdruck aufgeblasen und die Form beheizt. Nach 2-3 min. bei 220° C kann das Werkzeug abgekühlt und der ein- und mehrteilige Hockeyschläger 1 entformt werden. The semi-finished tube is provided with a film tube made of a material with a higher melting point than the matrix system used. The film tube is welded closed at the shaft / blade transition and provided with a valve at the end of the shaft. The semi-finished tube is placed in the mold designed as a mold and the mold is closed. The film tube is inflated to pressure and the mold is heated. After 2-3 min. the tool can be cooled at 220 ° C. and the one-part and multi-part hockey stick 1 can be removed from the mold.

Claims

Ansprüche Expectations
1. Ein- und mehrteilige Hockeyschläger (1), insbesondere Feld- oder Eishockeyschläger, mit Schaufel/Keule (3) und Schaft (2) aus Faserverbundwerkstoff mit thermoplastischer Matrix.1. Single and multi-part hockey stick (1), in particular field or ice hockey stick, with shovel / club (3) and shaft (2) made of fiber composite material with a thermoplastic matrix.
2. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Faserverbundwerkstoff Verstärkungsfasern aus Kohle-, Glas- oder Aramidfasern enthält.2. single and multi-part hockey stick (1) according to claim 1, characterized in that the fiber composite material contains reinforcing fibers made of carbon, glass or aramid fibers.
3. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass die thermoplastische Matrix Polyamide, Polybuthylenterephthalat, Polypropylen, Polyphenylsulfid oder Polyetheretherketon enthält.3. Single and multi-part hockey stick (1) according to claim 1, characterized in that the thermoplastic matrix contains polyamides, polybutylene terephthalate, polypropylene, polyphenyl sulfide or polyether ether ketone.
4. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schaft (2) und/oder Schaufel/Keule (3) lokal unterschiedliche Steifigkeiten aufweisen.4. single and multi-part hockey stick (1) according to claim 1, characterized in that the shaft (2) and / or blade / club (3) have locally different stiffnesses.
5. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 4, dadurch gekennzeichnet, dass die lokal unterschiedlichen Steifigkeiten von Schaufel/Keule (3) oder im Übergangsbereich von Schaft (2) zu Schaufel/Keule (3) mit separaten Einlegern aus faserverstärktem Kunststoff, insbesondere in Bienenwabenform, ausgestaltet sind. 5. single and multi-part hockey stick (1) according to claim 4, characterized in that the locally different stiffness of blade / club (3) or in the transition region from shaft (2) to blade / club (3) with separate inserts made of fiber-reinforced plastic , in particular in the form of a honeycomb.
6. Ein- und mehrteilige Hockeyschläger (!)• gemäß Anspruch 5, dadurch gekennzeichnet, dass die Einleger aus dem gleichen Material, insbesondere thermoplastische Matrix + Verstärkungsfaser, im Spritzgießverfahren hergestellt und beim Herstellungsvorgang des Schlägers automatisch mit eingeschmolzen, bzw. eingeschweißt werden.6. Single and multi-part hockey stick (!) • according to claim 5, characterized in that the inserts are made of the same material, in particular thermoplastic matrix + reinforcing fiber, in the injection molding process and are automatically melted or welded in during the production process of the stick.
7. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schaft (2) und/oder die Schaufel/Keule (3) lokal unterschiedliche Gewichte aufweisen.7. single and multi-part hockey stick (1) according to claim 1, characterized in that the shaft (2) and / or the blade / club (3) have locally different weights.
8. Ein- und mehrteilige Hockeyschläger (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass der Schaft (2) und/oder die Schaufel/Keule (3) lokal unterschiedliche Faserarten aufweisen.8. single and multi-part hockey stick (1) according to claim 1, characterized in that the shaft (2) and / or the blade / club (3) locally different fiber types.
9. Biegevorrichtung mit Heizvorrichtung zur Erwärmung und Einstellung besonderer Biegungen und/oder Verschränkungen der Schaufel/Keule (3) und/oder spezifischer Winkel von Schaufel/Keule (3) zum Schaft (2) des ein- und mehrteiligen Hockeyschlägers (1) gemäß Anspruch 1. 9. Bending device with heating device for heating and setting special bends and / or entanglements of the blade / club (3) and / or specific angle of the blade / club (3) to the shaft (2) of the one-part and multi-part hockey stick (1) according to claim 1.
PCT/DE2005/001104 2004-06-19 2005-06-20 One-piece and multi-piece hockey sticks, and bending device for adjusting such hockey sticks WO2005123199A2 (en)

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DE102004029856.4 2004-06-19
DE102004029856A DE102004029856A1 (en) 2004-06-19 2004-06-19 One- and multi-part field or ice hockey sticks

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
GB2527862A (en) * 2014-10-09 2016-01-06 Rockwood Composites Ltd A Hockey Stick And Method of Manufacturing Thereof
EP3348309A3 (en) * 2017-01-13 2018-10-31 Adidas AG Field hockey stick

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017377A1 (en) * 2008-04-05 2009-10-08 Röchling Technische Teile KG Lightweight component and method for producing this

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EP0662391A2 (en) * 1994-01-07 1995-07-12 Composite Development Corporation Composite shaft structure and manufacture
WO2000003769A1 (en) * 1998-07-15 2000-01-27 Fischer Gesellschaft Mbh Hockey stick
US20030100390A1 (en) * 2001-11-26 2003-05-29 Alain Bellefleur Shaft for a hockey stick
WO2003097181A1 (en) * 2002-05-15 2003-11-27 Jas D. Easton, Inc. Hockey stick

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Publication number Priority date Publication date Assignee Title
EP0662391A2 (en) * 1994-01-07 1995-07-12 Composite Development Corporation Composite shaft structure and manufacture
WO2000003769A1 (en) * 1998-07-15 2000-01-27 Fischer Gesellschaft Mbh Hockey stick
US20030100390A1 (en) * 2001-11-26 2003-05-29 Alain Bellefleur Shaft for a hockey stick
WO2003097181A1 (en) * 2002-05-15 2003-11-27 Jas D. Easton, Inc. Hockey stick

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2527862A (en) * 2014-10-09 2016-01-06 Rockwood Composites Ltd A Hockey Stick And Method of Manufacturing Thereof
GB2527862B (en) * 2014-10-09 2016-05-18 Rockwood Composites Ltd A Hockey Stick And A Method of Manufacturing Thereof
EP3348309A3 (en) * 2017-01-13 2018-10-31 Adidas AG Field hockey stick

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WO2005123199A3 (en) 2006-05-04

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