EP0062270B1 - Tool handle - Google Patents

Tool handle Download PDF

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Publication number
EP0062270B1
EP0062270B1 EP82102604A EP82102604A EP0062270B1 EP 0062270 B1 EP0062270 B1 EP 0062270B1 EP 82102604 A EP82102604 A EP 82102604A EP 82102604 A EP82102604 A EP 82102604A EP 0062270 B1 EP0062270 B1 EP 0062270B1
Authority
EP
European Patent Office
Prior art keywords
zone
tool handle
tool
section
cross
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
EP82102604A
Other languages
German (de)
French (fr)
Other versions
EP0062270A2 (en
EP0062270A3 (en
Inventor
Karl-Hermann Rauch
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.)
ELORA-WERKZEUGFABRIK GMBH
Original Assignee
Elora-Werkzeugfabrik 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 Elora-Werkzeugfabrik GmbH filed Critical Elora-Werkzeugfabrik GmbH
Publication of EP0062270A2 publication Critical patent/EP0062270A2/en
Publication of EP0062270A3 publication Critical patent/EP0062270A3/en
Application granted granted Critical
Publication of EP0062270B1 publication Critical patent/EP0062270B1/en
Expired legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a tool booklet, consisting of a booklet body with a central longitudinal bore for receiving a tool shank, and with a collar formed at the front end and an adjoining, concavely profiled zone, at the end opposite the collar of which there is a double-conical section with a square cross section. ⁇ t.
  • Such a tool booklet is known from DE-B 2 452 302.
  • This known tool booklet is to be used in particular in connection with screwdrivers. It has an approximately central constriction, which is designed in a round cross section. Fingers of an operating hand resting in this area, however, cannot transfer torque well to the tool handle due to the resulting smooth surface of this round constriction. H. the tool booklet can slip in the operating hand.
  • the known tool In its upper handle part opposite the tool shank, the known tool is equipped with a ridge from which the gripping surfaces are inclined, in a straight line. This means that the ridge is relatively sharp, which should be noticeable in the operating hand.
  • the invention has for its object to design a tool book so that it is universal for a variety of tools such.
  • the collar and the concavely profiled zone have a round cross-section
  • the cross-sectional area of the tooling has a square cross-section over its entire length from the end of the concavely profiled zone up to and including the double-conical section
  • the double -conical section consists of two conical areas, the transition of which is rounded with a large radius. Due to this advantageous embodiment, the tool booklet according to the invention is not only suitable in connection with screwdrivers.
  • the main advantage of the tool booklet according to the invention is thus the universal shape, which is not only determined by one tool, but also by a multitude of hand tools of all kinds, but nevertheless does justice to all types of manual drive in such a way that a high torque or torque is obtained when pulling, turning or pressing A high force can be transmitted without causing a feeling of pain in the closed hand, so that pressure points are also avoided with prolonged use.
  • An inventive Tool handle consists of a stapler body 1 ° at its front end, the one to be used tool is turned towards the shaft, has a cylindrical collar. 2
  • the tacking body 1 has a central longitudinal bore 3 for receiving the tool shank.
  • a concave profiled cylinder zone 4 adjoins the collar 2.
  • the end 5 of the cylinder zone 4 opposite the collar 2 preferably has a larger diameter than the collar 2. From the end 5 there is formed a sloping zone 6, rounded off with a large diameter, which merges into a first rising cone region 7 of a double-conical section 8, and with a large rounding diameter.
  • the rear end area of the tack body 1 is formed by a sloping second cone area 9 of the double-conical section 8.
  • the cross-sectional area of the tack body 1 is always square from the end 5 to the rear end face 10, the four longitudinal edges 11 or the corners of the cross-sectional area being rounded off are.
  • the transition 12 of the two cone regions 7, 9 has the largest cross-sectional area, so that the stitching body becomes thicker from the front to the transition 12 as a whole.
  • the edge length of the square cross-sectional area at the transition 12 is advantageously approximately 25% more. than at the end 5 of the concave cylinder zone 4, and the edge length of the cross-sectional area at the end 5 is about 10% larger than the diameter of the collar 2.
  • the lengths of the individual areas or sections are dimensioned such that the areas, the falling zone 6 and the first cone area 7, together being longer overall than the cylinder zone 4 or the cone area 9.
  • the cone area 9 is shorter than the cylinder zone 4.
  • the falling zone 6 and the first cone area 7 are together about 15% longer than the cylinder zone 4, and the cone area 9 is about 15% shorter than the cylinder zone 4.
  • a contour of the tool handle is achieved by the square cross section of the handle body 1 behind the cylinder zone 4, which is optimally adapted to the shape of a closed hand, whereby the tool handle according to the invention in particular as a tool handle for creaking and turning crank is suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Description

Die Erfindung betrifft ein Werkzeugheft, bestehend aus einem Heftkörper mit mittiger Längsbohrung zur Aufnahme eines Werkzeugschaftes, sowie mit am vorderen Ende ausgebildetem Kragen und einer sich daran anschließenden, konkav profilierten Zone, an deren dem Kragen gegenüberliegendem Ende sich ein doppelkonischer Abschnitt mit quadratischem Querschnitt anschlie- βt.The invention relates to a tool booklet, consisting of a booklet body with a central longitudinal bore for receiving a tool shank, and with a collar formed at the front end and an adjoining, concavely profiled zone, at the end opposite the collar of which there is a double-conical section with a square cross section. βt.

Ein derartiges Werkzeugheft ist aus der DE-B 2 452 302 bekannt. Dieses bekannte Werkzeugheft soll insbesondere in Verbindung mit Schraubendrehern verwendet werden. Es weist eine etwa mittig angeordnete Einschnürung auf, die in rundem Querschnitt ausgebildet ist. In diesem Bereich aufliegende Finger einer Bedienungshand können aber aufgrund der sich ergebenden glatten Fläche dieser runden Einschnürung Drehkräfte nicht gut auf das Werkzeugheft übertragen, d. h. das Werkzeugheft kann in der Bedienungshand durchrutschen. In seinem dem Werkzeugschaft gegenüberliegenden oberen Griffteil ist das bekannte Werkzeug heft mit einem First ausgestattet, von dem aus die Griffflächen geneigt, und zwar geradlinig, verlaufen. Dadurch ergibt sich, daß der First relativ scharfkantig ist, was sich in der Bedienungshand störend bemerkbar machen dürfte.Such a tool booklet is known from DE-B 2 452 302. This known tool booklet is to be used in particular in connection with screwdrivers. It has an approximately central constriction, which is designed in a round cross section. Fingers of an operating hand resting in this area, however, cannot transfer torque well to the tool handle due to the resulting smooth surface of this round constriction. H. the tool booklet can slip in the operating hand. In its upper handle part opposite the tool shank, the known tool is equipped with a ridge from which the gripping surfaces are inclined, in a straight line. This means that the ridge is relatively sharp, which should be noticeable in the operating hand.

Der Erfindung liegt die Aufgabe zugrunde, ein Werkzeugheft derart zu gestalten, daß es universell für die unterschiedlichsten Werkzeuge, z. B. Knarren, Drehkurbeln, Feilen, Schraubendreher, Verwendung finden kann, und zwar unter Gewährleistung einer optimalen Kraftübertragung von der Bedienungshand auf das Werkzeugheft und einer ergonomisch der geschlossenen Hand angepaßten Form.The invention has for its object to design a tool book so that it is universal for a variety of tools such. B. creaking, turning cranks, files, screwdrivers, can be used, while ensuring optimal power transmission from the operating hand to the tool booklet and an ergonomically adapted shape of the closed hand.

Erfindungsgemäß wird dies dadurch erreicht, daß der Kragen sowie die konkav profilierte Zone runden Querschnitt aufweist, und daß die Querschnittsfläche des Werkzeug heftes vom Ende der konkav profilierten Zone bis einschließlich des doppel-konischen Abschnittes einen quadratischen Querschnitt über seine gesamt Länge besitzt, wobei der doppel-konische Abschnitt aus zwei konischen Bereichen besteht, deren Übergang mit großem Radius abgerundet ist. Durch diese vorteilhafte Ausgestaltung eignet sich das erfindungsgemäße Werkzeugheft nicht nur in Verbindung mit Schraubendrehern. Der wesentliche Vorteil des erfindungsgemäßen Werkzeugheftes ist also die universelle Form, welche sich nicht nur auf ein Werkzeug festlegt, sondern auf eine Vielzahl von Handwerkzeugen aller Art, aber trotzdem allen Handantriebsarten derart gerecht wird, daß sowohl beim Ziehen, Drehen oder Drücken ein hohes Drehmoment bzw. eine hohe Kraft übertragen werden kann, ohne daß in der geschlossenen Hand ein Schmerzgefühl erzeugt wird, so daß auch Druckstellen bei längerem Gebrauch vermieden werden.According to the invention this is achieved in that the collar and the concavely profiled zone have a round cross-section, and in that the cross-sectional area of the tooling has a square cross-section over its entire length from the end of the concavely profiled zone up to and including the double-conical section, the double -conical section consists of two conical areas, the transition of which is rounded with a large radius. Due to this advantageous embodiment, the tool booklet according to the invention is not only suitable in connection with screwdrivers. The main advantage of the tool booklet according to the invention is thus the universal shape, which is not only determined by one tool, but also by a multitude of hand tools of all kinds, but nevertheless does justice to all types of manual drive in such a way that a high torque or torque is obtained when pulling, turning or pressing A high force can be transmitted without causing a feeling of pain in the closed hand, so that pressure points are also avoided with prolonged use.

Anhand des in den beiliegenden Zeichnungen dargestellten Ausführungsbeispiels wird die Erfindung näher erläutert.The invention is explained in more detail with reference to the exemplary embodiment illustrated in the accompanying drawings.

Es zeigen :

  • Figur 1 eine perspektivische Ansicht eines erfindungsgemäßen Werkzeugheftes,
  • Figur 2 eine Ansicht von hinten auf das erfindungsgemäße Werkzeugheft, wenn es von einer Bedienungshand umschlossen ist,
  • Figur 3 einen Schnitt entlang der Schnittlinie 111-111 in Figur 1.
Show it :
  • FIG. 1 shows a perspective view of a tool booklet according to the invention,
  • FIG. 2 shows a view from behind of the tool booklet according to the invention when it is enclosed by an operating hand,
  • 3 shows a section along the section line 111-111 in FIG. 1.

Ein erfindungsgemäßes Werkzeugheft besteht aus einem Heftkörper 1, der°an seinem vorderen Ende, das dem Schaft eines einzusetzenden Werkzeuges zugekehrt ist, einen zylindrischen Kragen 2 aufweist. Zur Aufnahme des Werkzeugschaftes besitzt der Heftkörper 1 eine mittige Längsbohrung 3. An den Kragen 2 schließt sich eine konkav profilierte Zylinderzone 4 an. Das dem Kragen 2 gegenüberliegende Ende 5 der Zylinderzone 4 besitzt vorzugsweise einen größeren Durchmesser als der Kragen 2. Vom Ende 5 aus ist eine abfallende, mit großem Durchmesser ausgerundete Zone 6 ausgebildet, die in einen ersten ansteigenden Konusbereich 7 eines doppelkonischen Abschnitts 8 übergeht, und zwar mit einem großen Rundungsdurchmesser. Den hinteren Endbereich des Heftkörpers 1 bildet ein abfallender zweiter Konusbereich 9 des doppel-konischen Abschnitts 8. Die Querschnittsfläche des Heftkörpers 1 ist von dem Ende 5 ab bis zur hinteren Endfläche 10 stets quadratisch, wobei die vier Längskanten 11 bzw. die Ecken der Querschnittsfläche abgerundet sind. Der Übergang 12 der beiden Konusbereiche 7, 9 besitzt die größte Querschnittsfläche, so daß der Heftkörper von vorne bis zum Übergang 12 im ganzen dicker wird. Vorteilhafterweise beträgt die Kantenlänge der quadratischen Querschnittsfläche am Übergang 12 etwa 25 % mehr. als am Ende 5 der konkaven Zylinderzone 4, und die Kantenlänge der Querschnittsfläche am Ende 5 ist etwa 10 % größer als der Durchmesser des Kragens 2. Die Längen der einzelnen Bereiche bzw. Abschnitte sind derart bemessen, daß die Bereiche, die abfallende Zone 6 und der erste Konusbereich 7, zusammen insgesamt länger sind als jeweils die Zylinderzone 4 oder der Konusbereich 9. Hierbei ist der Konusbereich 9 kürzer als die Zylinderzone 4. Die abfallende Zone 6 und der erste Konusbereich 7 sind zusammen etwa 15 % länger als die Zylinderzone 4, und der Konusbereich 9 ist etwa 15 % kürzer als die Zylinderzone 4. Aufgrund dieser vorteilhaften Gestaltung des Heftkörpers ergibt sich eine besonders günstige Lage des Heftes in der Bedienungshand, wobei die verschiedenen Längen, wie sie im Vorstehenden beschrieben sind, der einzelnen Bereiche, insbesondere die Verlängerung der konkaven Zylinderzone gegenüber dem Endbereich 9, es erlauben, daß die Finger der Bedienungshand relativ gestreckt sind, wodurch sich eine besonders angenehme und entspannte Handhaltung ergibt.An inventive Tool handle consists of a stapler body 1 ° at its front end, the one to be used tool is turned towards the shaft, has a cylindrical collar. 2 The tacking body 1 has a central longitudinal bore 3 for receiving the tool shank. A concave profiled cylinder zone 4 adjoins the collar 2. The end 5 of the cylinder zone 4 opposite the collar 2 preferably has a larger diameter than the collar 2. From the end 5 there is formed a sloping zone 6, rounded off with a large diameter, which merges into a first rising cone region 7 of a double-conical section 8, and with a large rounding diameter. The rear end area of the tack body 1 is formed by a sloping second cone area 9 of the double-conical section 8. The cross-sectional area of the tack body 1 is always square from the end 5 to the rear end face 10, the four longitudinal edges 11 or the corners of the cross-sectional area being rounded off are. The transition 12 of the two cone regions 7, 9 has the largest cross-sectional area, so that the stitching body becomes thicker from the front to the transition 12 as a whole. The edge length of the square cross-sectional area at the transition 12 is advantageously approximately 25% more. than at the end 5 of the concave cylinder zone 4, and the edge length of the cross-sectional area at the end 5 is about 10% larger than the diameter of the collar 2. The lengths of the individual areas or sections are dimensioned such that the areas, the falling zone 6 and the first cone area 7, together being longer overall than the cylinder zone 4 or the cone area 9. Here, the cone area 9 is shorter than the cylinder zone 4. The falling zone 6 and the first cone area 7 are together about 15% longer than the cylinder zone 4, and the cone area 9 is about 15% shorter than the cylinder zone 4. This advantageous design of the booklet body results in a particularly favorable position of the booklet in the operating hand, the different lengths, as described above, of the individual areas, in particular the Extension of the concave cylinder zone relative to the end region 9, allow the fingers of the operating hand to be relatively stretched , which results in a particularly pleasant and relaxed hand position.

Aus Figur 2 ist ersichtlich, daß durch den quadratischen Querschnitt des Heftkörpers 1 hinter der Zylinderzone 4 eine Kontur des Werkzeugheftes erreicht wird, die in optimaler Weise der Form einer geschlossenen Hand angepaßt ist, wodurch sich das erfindungsgemäße Werkzeugheft insbesondere auch als Werkzeugheft für Knarren und Drehkurbein eignet. Durch die Abrundung der Ecken und ebenfalls die Abrundung der Übergangsbereiche mit großen Rundungsradius wird eine Verletzungsgefahr der inneren Handfläche weitgehend vermieden, wobei trotzdem ein hinreichend großer Widerstand erhalten bleibt, der eine sichere Handhabung gewährleistet.From Figure 2 it can be seen that a contour of the tool handle is achieved by the square cross section of the handle body 1 behind the cylinder zone 4, which is optimally adapted to the shape of a closed hand, whereby the tool handle according to the invention in particular as a tool handle for creaking and turning crank is suitable. By rounding the corners and also rounding off the transition areas with a large radius of curvature, the risk of injury to the inner palm is largely avoided, but a sufficiently high resistance is still retained which ensures safe handling.

Claims (5)

1. A tool handle, comprising a handle body with a central longitudinal bore (3) for receiving a tool shank, and with a collar formed at the front end and a zone (4) adjacent thereto which has a concave profile and the end of which opposite the collar (2) adjoins a double-conical portion (8) of square cross-section, characterized in that both the collar (2) and the zone (4) with a concave profile have a round cross-section, and the cross- sectional face of the tool handle (1) from the end (5) of the zone (4) with a concave profile up to and including the double-conical portion (8) has a square cross-section over its entire length, the double-conical portion (8) comprising two tapered areas (7, 9), the transition (12) of which is rounded with a large radius.
2. A tool handle according to Claim 1-, characterized in that the four corners (11) of the cross-section and the longitudinal edges of the tool handle (1) respectively are rounded.
3. A tool handle according to Claim 1 or 2, characterized in that the concave cylindrical zone (4) is joined by a sloping rounded zone (6) which passes continuously into the rising tapered region (7) of the double-conical portion (8).
4. A tool handle according to one or more of Claims 1 to 3, characterized in that the cylindrical zone (4) is longer than the sloping tapered region (9) and the entire length of the sloping rounded zone (6) and the first tapered region together is greater than the length of the concave cylindrical zone (4).
5. A tool handle according to one or more of Claims 1 to 4, characterized in that the cross-section at the transition (12) is greater than at the end (5) of the cylindrical zone (4).
EP82102604A 1981-04-08 1982-03-27 Tool handle Expired EP0062270B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818110659U DE8110659U1 (en) 1981-04-08 1981-04-08 "TOOL BOOK"
DE8110659U 1981-04-08

Publications (3)

Publication Number Publication Date
EP0062270A2 EP0062270A2 (en) 1982-10-13
EP0062270A3 EP0062270A3 (en) 1983-07-06
EP0062270B1 true EP0062270B1 (en) 1986-06-18

Family

ID=6726633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102604A Expired EP0062270B1 (en) 1981-04-08 1982-03-27 Tool handle

Country Status (2)

Country Link
EP (1) EP0062270B1 (en)
DE (2) DE8110659U1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925534A1 (en) * 1989-08-02 1991-02-07 Wuerth Adolf Gmbh & Co Kg TOOL BOOK
DE3926902A1 (en) * 1989-08-16 1991-02-21 Wuerth Adolf Gmbh & Co Kg File book
DE3926916A1 (en) * 1989-08-16 1991-02-21 Wuerth Adolf Gmbh & Co Kg DRIVE TOOL FOR SOCKET INSERTS
US5365881A (en) * 1994-01-03 1994-11-22 Sporn Joseph S Grooming brush handle
US5781963A (en) * 1995-10-06 1998-07-21 The Stanley Works Coextruded screwdriver handle and method of making same
DE19641464A1 (en) * 1996-10-09 1998-04-30 Pries Alexander New forms of grip surfaces, especially ball game rackets / tennis rackets etc.
US5911798A (en) * 1997-04-09 1999-06-15 Hand Tool Design Corporation Handle extension for ratchet wrench
GB9726294D0 (en) 1997-12-12 1998-02-11 Optident International Ltd Improvements relating to hand held devices
DE10001885A1 (en) * 1999-07-22 2001-07-26 Wuerth Adolf Gmbh & Co Kg Handle for a tool
WO2001053046A1 (en) * 2000-01-19 2001-07-26 Adolf Würth GmbH & Co. KG Handle for a tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298060B (en) * 1967-07-31 1969-06-19 Werner Fa Hermann Tool handle
DE2452302C3 (en) * 1974-11-05 1980-08-28 Fa. Gustav Weber, 5600 Wuppertal Handle for hand tools, especially for screwdrivers

Also Published As

Publication number Publication date
EP0062270A2 (en) 1982-10-13
DE3271741D1 (en) 1986-07-24
EP0062270A3 (en) 1983-07-06
DE8110659U1 (en) 1981-10-01

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