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DE29920323U1 - Plastic handle - Google Patents

Plastic handle

Info

Publication number
DE29920323U1
DE29920323U1 DE29920323U DE29920323U DE29920323U1 DE 29920323 U1 DE29920323 U1 DE 29920323U1 DE 29920323 U DE29920323 U DE 29920323U DE 29920323 U DE29920323 U DE 29920323U DE 29920323 U1 DE29920323 U1 DE 29920323U1
Authority
DE
Germany
Prior art keywords
handle
plastic
area
sprue
neck
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 - Lifetime
Application number
DE29920323U
Other languages
German (de)
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.)
Felo Werkzeugfabrik Holland Letz GmbH
Original Assignee
Felo Werkzeugfabrik Holland Letz 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 Felo Werkzeugfabrik Holland Letz GmbH filed Critical Felo Werkzeugfabrik Holland Letz GmbH
Priority to DE29920323U priority Critical patent/DE29920323U1/en
Publication of DE29920323U1 publication Critical patent/DE29920323U1/en
Priority to US09/713,855 priority patent/US6749790B1/en
Priority to ES00125097T priority patent/ES2279745T3/en
Priority to DE50013946T priority patent/DE50013946D1/en
Priority to EP00125097A priority patent/EP1101573B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • B29C45/1676Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25GHANDLES FOR HAND IMPLEMENTS
    • B25G1/00Handle constructions
    • B25G1/10Handle constructions characterised by material or shape
    • B25G1/105Handle constructions characterised by material or shape for screwdrivers, wrenches or spanners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0027Gate or gate mark locations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/46Knobs or handles, push-buttons, grips
    • B29L2031/463Grips, handles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

FeIo - Werkzeugfabrik Holland-Letz GmbH D - 35279 Neustadt/Hessen Griff aus KunststoffFeIo - Werkzeugfabrik Holland-Letz GmbH D - 35279 Neustadt/Hessen Handle made of plastic

Die Neuerung betrifft die Gestaltung eines im Spritzgießverfahren aus zwei Materialien hergestellten Griffes aus Kunststoff.The innovation concerns the design of a plastic handle made from two materials using the injection molding process.

Griffe aus zwei Kunststoffen werden üblicherweise in der Weise hergestellt, daß ein Kerngriff aus einem Hartkunststoff gespritzt wird, und auf den Kerngriff in einer zweiten Spritzgießschicht ein Mantel oder Felder aus Weichkunststoff (Elastomerkunststoff) mit anderer Farbe als die des Kerngriffes aufgespritzt werden.Handles made of two plastics are usually manufactured by injection-molding a core handle made of a hard plastic, and then in a second injection-molding layer a jacket or panels made of soft plastic (elastomer plastic) of a different color to that of the core handle are injected onto the core handle.

Da bei Elastomerkunststoffen die Haftung von Druckfarben sehr schlecht ist, wird angestrebt, in einer Zone der Griffoberfläche den Kerngriff nicht mit einem Mantel aus Elastomer zu umhüllen. Unter dem Gesichtspunkt, eine gute Haptik des Griffes zu erzielen und hohe Drehmomente übertragen zu können, bietet sich der Griffhals als nicht ummantelte Zone an. Hier liegen die Fingerspitzen an, sie drehen den Griff beim schnellen Schrauben mit niedrigem Drehmoment.Since the adhesion of printing inks to elastomer plastics is very poor, the aim is not to cover the core handle with an elastomer coating in one area of the handle surface. From the point of view of achieving a good feel for the handle and being able to transmit high torques, the handle neck is a suitable area that is not coated. This is where the fingertips rest, turning the handle when screwing quickly with low torque.

Ist der Griffhals aus einem wenig rutschfesten Hartkunststoff, ist der Benutzer gezwungen dort eine große Haltekraft aufzubringen, um eine Kraft in Längsrichtung, gegen ein Herausrutschen der Werkzeugspitze, aufzubringen. Um diese zur Ermüdung führende Haltekraft zu reduzieren, sind seit langem trichterförmig ausgebildete Griffhälse bekannt.If the handle neck is made of a hard plastic that is not very slip-resistant, the user is forced to apply a large amount of holding force to prevent the tool tip from slipping out. Funnel-shaped handle necks have long been known to reduce this holding force, which leads to fatigue.

Die vorliegende Neuerung sieht einen Ring aus Weichkunststoff vor, der den Griffhals abschließt und ein Überrutschen der Finger, bzw. die Notwendigkeit einer hohen Haltekraft verhindert.The present innovation provides a ring made of soft plastic that closes the handle neck and prevents the fingers from slipping or the need for a high holding force.

Weiterhin wird angestrebt, den Anguß für den Weichmantel an eine Stelle des Griffes zu legen, wo es einerseits möglich ist, den Angußkanal in die Form-Trennebene zu legen, was den Anguß technisch sehr einfach macht, andererseits ein am Griff verbleibender kleiner Angußnippel jedoch nicht stört. Eine solche Stelle ist die Stirnseite des Griffkopfes, oder ein kurzer, axialer Ansatz an der Stirnseite, oder der Umfangsbereich des Griffkopfes.Furthermore, the aim is to place the sprue for the soft coating at a point on the handle where it is possible to place the sprue channel in the mold parting plane, which makes the sprue technically very simple, but at the same time a small sprue nipple remaining on the handle does not cause any problems. One such point is the front side of the handle head, or a short, axial extension on the front side, or the peripheral area of the handle head.

Die Verbindung vom Angußbereich am Griffkopf zu dem ummantelten Bereich des Griffes wird über Verbindungsstege oder- Kanäle hergestellt, die durch die nicht ummantelte Zone des Griffhalses verlaufen.The connection from the sprue area on the handle head to the coated area of the handle is made via connecting bars or channels that run through the non-coated zone of the handle neck.

In den Zeichnungen ist der Erfindungsgegenstand beispielhaft dargestellt:The subject matter of the invention is shown by way of example in the drawings:

Fig. 1 zeigt einen Schraubendrehergriff in einer Ansicht von vorne. Im Einzelnen:Fig. 1 shows a screwdriver handle in a front view. In detail:

(1) der Griff(1) the handle

(2) die Stirnseite des Griffes(2) the front side of the handle

(3) eine in den Griff eingesetzte Schraubendreherklinge(3) a screwdriver blade inserted into the handle

(4) einen Angußpunkt(4) a gate point

(5) die durch den Griffhals verlaufenden Stege gebildet aus dem zweiten Kunststoff(5) the webs running through the handle neck are made of the second plastic

Fig.2 Zeigt den Schraubendrehergriff in einer Seitenansicht Im Einzelnen:Fig.2 Shows the screwdriver handle in a side view In detail:

(1) die leicht bedruckbaren Hartkunststoffzonen(1) the easily printable hard plastic zones

(2) der rutschhemmende Weichkunststoff-Ring(2) the anti-slip soft plastic ring

(3) der Angußnippel(3) the sprue nipple

Claims (1)

Im Spritzgießverfahren hergestellter Griff aus Kunststoff dadurch gekennzeichnet, daß der zweite Kunststoff ein Elastomerkunststoff ist, der die Griffoberfläche, unter Freilassung der Griffkappe am der Klinge abgewendeten Ende des Griffes und des größten Teiles des Griffhalses, bedeckt, der Anguß für den Mantel aus Elastomerkunststoff im Bereich der Stirnseite oder im Bereich des größten Durchmessers des Griffkopfes in einem Ring oder einer Fläche aus Elastomerkunststoff liegt und die Verbindung zwischen dem Angußbereich und dem hinteren Griffbereich durch Stege oder Kanäle gebildet wird, die den Griffhals in axialer Richtung durchlaufen. Handle made of plastic using an injection molding process, characterized in that the second plastic is an elastomer plastic which covers the handle surface, leaving free the handle cap at the end of the handle facing away from the blade and the largest part of the handle neck, the sprue for the jacket made of elastomer plastic is located in the area of the front side or in the area of the largest diameter of the handle head in a ring or a surface made of elastomer plastic and the connection between the sprue area and the rear handle area is formed by webs or channels which run through the handle neck in the axial direction.
DE29920323U 1999-11-19 1999-11-19 Plastic handle Expired - Lifetime DE29920323U1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE29920323U DE29920323U1 (en) 1999-11-19 1999-11-19 Plastic handle
US09/713,855 US6749790B1 (en) 1999-11-19 2000-11-16 Handle for a hand tool and method for the manufacture thereof
ES00125097T ES2279745T3 (en) 1999-11-19 2000-11-17 HAND TOOL HAND AND ITS MANUFACTURING PROCEDURE.
DE50013946T DE50013946D1 (en) 1999-11-19 2000-11-17 Handle for a hand tool and method of making the same
EP00125097A EP1101573B1 (en) 1999-11-19 2000-11-17 Handle for a hand tool and method for producing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29920323U DE29920323U1 (en) 1999-11-19 1999-11-19 Plastic handle

Publications (1)

Publication Number Publication Date
DE29920323U1 true DE29920323U1 (en) 2000-01-27

Family

ID=8081812

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29920323U Expired - Lifetime DE29920323U1 (en) 1999-11-19 1999-11-19 Plastic handle

Country Status (1)

Country Link
DE (1) DE29920323U1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20004373U1 (en) 2000-03-10 2000-05-04 Felo-Werkzeugfabrik Holland-Letz GmbH, 35279 Neustadt Plastic handles
USD445658S1 (en) 2000-03-04 2001-07-31 Adolf Wurth Gmbh & Co. Kg Handle for a hand tool, especially for a screw driver
DE10010674A1 (en) * 2000-03-04 2001-09-06 Adolf Wuerth Gmbh & Co Kg Handle for two-armed tool has front end and free end, inside and outside, and marking
DE10010675A1 (en) * 2000-03-04 2001-09-06 Adolf Wuerth Gmbh & Co Kg Screwdriver handle has a core body of one plastics material with structured surface zones to give flush surface areas of a second injected material for the required appearance with a good grip
DE10306424A1 (en) * 2003-02-15 2004-09-09 Chun Yong Chen Process for manufacturing a handle for a tool and its products

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD445658S1 (en) 2000-03-04 2001-07-31 Adolf Wurth Gmbh & Co. Kg Handle for a hand tool, especially for a screw driver
DE10010674A1 (en) * 2000-03-04 2001-09-06 Adolf Wuerth Gmbh & Co Kg Handle for two-armed tool has front end and free end, inside and outside, and marking
DE10010675A1 (en) * 2000-03-04 2001-09-06 Adolf Wuerth Gmbh & Co Kg Screwdriver handle has a core body of one plastics material with structured surface zones to give flush surface areas of a second injected material for the required appearance with a good grip
DE20004373U1 (en) 2000-03-10 2000-05-04 Felo-Werkzeugfabrik Holland-Letz GmbH, 35279 Neustadt Plastic handles
DE10306424A1 (en) * 2003-02-15 2004-09-09 Chun Yong Chen Process for manufacturing a handle for a tool and its products
DE10306424B4 (en) * 2003-02-15 2005-08-04 Chun Yong Chen A method for producing a handle of a hand tool as well as handle produced by this method

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20000302

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20021216

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20051014

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20071205

R071 Expiry of right