EP0593906A2 - Screwdriver - Google Patents

Screwdriver Download PDF

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Publication number
EP0593906A2
EP0593906A2 EP93114958A EP93114958A EP0593906A2 EP 0593906 A2 EP0593906 A2 EP 0593906A2 EP 93114958 A EP93114958 A EP 93114958A EP 93114958 A EP93114958 A EP 93114958A EP 0593906 A2 EP0593906 A2 EP 0593906A2
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EP
European Patent Office
Prior art keywords
section
screwdriver
handle
cross
delimited
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.)
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Application number
EP93114958A
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German (de)
French (fr)
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EP0593906A3 (en
Inventor
Massimo Procino
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Utensilerie Associate SpA
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Utensilerie Associate SpA
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.)
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Publication date
Application filed by Utensilerie Associate SpA filed Critical Utensilerie Associate SpA
Publication of EP0593906A2 publication Critical patent/EP0593906A2/en
Publication of EP0593906A3 publication Critical patent/EP0593906A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/105—Handle constructions characterised by material or shape for screwdrivers, wrenches or spanners

Definitions

  • the above invention relates to a screwdriver with an improved handle.
  • this object is achieved in that the handle of the screwdriver is divided in its longitudinal direction into sections with different geometrical shapes, with a section of the handle in the immediate vicinity of the screwdriver blade having a pseudo-triangular cross-sectional shape, which is delimited by arches in the form of an arc, with one section converge, which has the shape of a truncated cone with a circular cross section and this section merges into a central body, which has a pseudo-triangular cross section which is offset from the cross section of the previous section and is delimited by rounded edges and merges into an end section which has the shape of a spherical cap, which is limited by spherical cutouts.
  • the advantage is achieved that the screwdriver in can be produced economically by an industrial process, for example by pressing a suitable plastic.
  • the section of the handle near the screwdriver blade has a pseudo-triangular cross-section, which is delimited by curved surfaces, opens up the possibility of acting on this section with the fingertips and initiating rapid rotary movements of the screwdriver in order to initiate the rotary movement under constant control of the User lies during the initial phase of a screwing process, or to carry out sensitive adjustment work on a screw.
  • the edges that delimit the triangular body represent a reliable reference with regard to the angular rotation carried out, which can be felt easily and securely using the fingertips.
  • the subsequently frustoconical section which advantageously has a circular cross section, enables a rapid and unobstructed rotary movement.
  • This section has extremely good ergonomic features and allows an optimal grip of the handle.
  • the arrangement of this section with a triangular cross section is offset from the first section, which is provided in the immediate vicinity of the screwdriver blade.
  • This feature makes it possible to enclose the screwdriver handle with the ball of the thumb in such a way that the thumb of the hand always lies naturally on one of the curved side surfaces of the first section.
  • the triangular cross-sectional shape of the middle part of the handle makes it possible to define reference surfaces for the position of the tool blade and to avoid an undesired rotary movement of the blade for the search of the screw slot.
  • the middle section of the handle is combined with a spherical cap, which is delimited by spherical cutouts, which makes it possible to support the end section perfectly in the palm of the hand.
  • the blade 1 of the screwdriver is connected to a handle 2.
  • the handle 2 is advantageously made of plastic, which is given the desired shape in a suitable pressing process.
  • the front section 3 of the handle 2 has a pseudo-triangular shape in cross section (FIG. 2) and the boundary surfaces 4 have an arcuate shape.
  • the section marked with 3 which has a pseudo-triangular cross-sectional shape, allows fast rotary movements to be carried out at the start of a screwing process or an adjustment process by means of a screw. Thanks to the triangular shape, the user of the screwdriver is given a precise angle reference during the screwing or unscrewing process, since the angular position of the screwdriver can be felt with the fingertips at this point on the handle.
  • Section of the handle 2 marked with 3 is followed by a section which is marked with the reference number 5.
  • This section has a circular cross section (FIG. 3).
  • Section 5 shows diminished Diameter similar to section 3 with a pseudo-triangular shape and makes it possible to carry out a rapid rotary movement with the fingers during a screwing-in or screwing-out process, that is to say when the screw is not yet tightened.
  • the section 5 gradually merges into a section 5a with a larger diameter and the section 5a merges with the middle section 6 of the handle 2.
  • the central section 6 has a triangular cross-sectional shape which is offset from the section 3 which is arranged in the immediate vicinity of the blade (FIG. 4).
  • the side surfaces 7 of the section 6 are slightly arched and connected to one another via edges 8 which are chamfered or rounded.
  • the middle section 6 of the handle 2 has a surface which is covered with small protruding knobs 9, in order to prevent the hand from slipping when the screwdriver is used. Furthermore, this feature guarantees a more secure hold of the handle 2 during the use of the tool.
  • the middle section 6 of the handle merges into the end section 10 of the handle 2.
  • the end piece C has the shape of a spherical cap which is formed by spherical cutouts which originate in accordance with the sides 7 of the middle section 6.
  • this end cap which is composed of spherical cutouts, makes it possible to create a safe and ergonomic support for the inside of the hand in order to be able to exert axial thrust on a screw when it is tightened.
  • a finger 11 is arranged, which advantageously consists of elastic material and is inserted via a snap connection into a groove 12, which is provided between the middle section 6 and the end section 10 is.
  • the ring 11 can have a different color, in order to make it possible to use the color differentiation to easily and quickly identify the type of screwdriver, e.g. a screwdriver with a cross-shaped blade or a screwdriver with a flat blade. This has proven to be particularly useful when the tools are stored mixed in a tool trolley or tool box.
  • the length of the handle 2 and the dimensions of the individual sections 3, 5, 5a, 6 and 10 are in Art selected to create a screwdriver that is characterized by the highest ergonomic shape.
  • the calotte 10 provided at the end rests securely inside the hand of the user, the middle section 6 can be comfortably gripped by the middle finger and finger finger, and the little finger and the thumb, together with the index finger of the hand of the user, lie conveniently in accordance with sections 3 and 5.

Abstract

Screwdriver with improved handle, which is subdivided in the longitudinal direction of the screwdriver into sections of different geometrical shape, the section in the immediate vicinity of the screwdriver blade having a pseudotriangular cross-section which is bounded by arcuately curved sides, which merge into a frustoconical section of circular cross-section, which runs into a central body having a pseudotriangular cross-section and rounded longitudinal edges, which merge into an end piece formed by a spherical cap which consists of circular sectors. <IMAGE>

Description

Die vorstehende Erfindung betrifft einen Schraubendreher mit verbessertem Handgriff.The above invention relates to a screwdriver with an improved handle.

Es ist vom Stand der Technik bekannt, die Klinge eines Schraubendrehers mit einem Handgriff zu versehen, der die Verwendung des Schraubendrehers gestattet. Dabei soll der Handgriff alle Anforderungen ergonomischer Art erfuellen und zudem noch industriell herstellbar sein.It is known from the prior art to provide the blade of a screwdriver with a handle which allows the screwdriver to be used. The handle should meet all ergonomic requirements and also be industrially producible.

Waehrend in der Vergangenheit Handgriffe Euer Schraubendreher eingesetzt wurden, die ueblicherweise aus Kunststoff bestanden und alle Anforderungen an eine industrielle Fertigung voll befriedigten, musste bei den bekannten Handgriffen Euer Schraubendreher festgestellt werden, dass die Anforderungen an eine ergonomische Handhabung und die Moeglichkeit, den Handgriff des Schraubendrehers Euer eine Anzahl unterschiedlicher Schraubvorgaenge einzusetzen, nicht befriedigt wurden.While in the past your screwdriver handles were used, which were usually made of plastic and fully satisfied all the requirements for industrial production, with the known handles your screwdriver had to be determined that the requirements for ergonomic handling and the ability to handle the screwdriver Your use of a number of different screwing operations have not been satisfied.

Es ist Aufgabe der vorstehenden Erfindung, die Nachteile des Standes der Technik zu vermeiden und einen Handgriff fuer einen Schraubendreher vorzuschlagen, der auf industrieller Basis herstellbar ist und einen neu gestalteten Handgriff aufweist, der alle Anforderungen ergonomischer Art befriedigt und auch die Moeglichkeit schafft, den Handgriff in optimaler Weise fuer eine Anzahl verschiedener Schraubvorgaenge einzusetzen.It is an object of the above invention to avoid the disadvantages of the prior art and to propose a handle for a screwdriver which can be manufactured on an industrial basis and which has a newly designed handle which satisfies all ergonomic requirements and also makes it possible to use the handle optimally used for a number of different screwing operations.

Erfindungsgemaess wird diese Aufgabe dadurch geloest, dass der Handgriff des Schraubendrehers in seiner Laengsrichtung in Abschnitte mit unterschiedlicher geometrischer Formgebung unterteilt ist, wobei ein Abschnitt des Handgriffes in unmittelbarer Naehe der Schraubendreherklinge pseudodreieckige Querschnittsform aufweist, die von bogenfoermig ausgebildeten Flaechen begrenzt ist, die mit einem Abschnitt zusammenlaufen, der Kegelstumpfform mit Kreisquerschnitt aufweist und dieser Abschnitt in einen zentralen Koerper uebergeht, der Pseudodreieckigen Querschnitt aufweist, der gegenueber dem Querschnitt des vorangegangenen Abschnittes versetzt angeordnet ist und von abgerundeten Kanten begrenzt wird und in einen Endabschnitt uebergeht, der die Form einer Kalotte aufweist, die von Kugelauschnitten begrenzt wird.According to the invention, this object is achieved in that the handle of the screwdriver is divided in its longitudinal direction into sections with different geometrical shapes, with a section of the handle in the immediate vicinity of the screwdriver blade having a pseudo-triangular cross-sectional shape, which is delimited by arches in the form of an arc, with one section converge, which has the shape of a truncated cone with a circular cross section and this section merges into a central body, which has a pseudo-triangular cross section which is offset from the cross section of the previous section and is delimited by rounded edges and merges into an end section which has the shape of a spherical cap, which is limited by spherical cutouts.

Mit einem Schraubendreher, der diese Merkmale aufweist, wird der Vorteil erzielt, dass der Schraubendreher in wirtschaftlicher Weise durch ein industrielles Verfahren, z.B. durch Verpressen eines geeigneten Kunststoffes, herstellbar ist.With a screwdriver that has these features, the advantage is achieved that the screwdriver in can be produced economically by an industrial process, for example by pressing a suitable plastic.

Dadurch, dass der Abschnitt des Handgriffes in der Naehe der Schraubendreherklinge pseudodreieckigen Querschnitt aufweist, der von bogenfoermig verlaufenden Flaechen begrenzt wird, eroeffnet sich die Moeglichkeit, auf diesen Abschnitt mit dem Fingerspitzen einzuwirken und schnelle Drehbewegungen des Schraubendrehers einzuleiten, um die Drehbewegung unter staendiger Kontrolle des Benuetzers waehrend der Anfangsphase eines Schraubvorganges liegt, oder um feinfuehlige Einstellarbeiten an einer Schraube durchzufuehren. Die Kanten, die den dreiecksfoermigen Koerper begrenzen, stellen einen sicheren Bezug hinsichtlich der durchgefuehrten Winkeldrehung dar, die einfach und sicher ueber die Fingerspitzen ertastbar ist.The fact that the section of the handle near the screwdriver blade has a pseudo-triangular cross-section, which is delimited by curved surfaces, opens up the possibility of acting on this section with the fingertips and initiating rapid rotary movements of the screwdriver in order to initiate the rotary movement under constant control of the User lies during the initial phase of a screwing process, or to carry out sensitive adjustment work on a screw. The edges that delimit the triangular body represent a reliable reference with regard to the angular rotation carried out, which can be felt easily and securely using the fingertips.

Der anschliessend kegelstumpffoermig ausgebildete Abschnitt, der in vorteilhafter Weise Kreisquerschnitt hat, ermoeglicht eine rasche und unbehinderte Drehbewegung.The subsequently frustoconical section, which advantageously has a circular cross section, enables a rapid and unobstructed rotary movement.

Der Abschnitt, der Kreisquerschnitt aufweist, vereint sich allmaehlich mit dem mittleren Teil des Handgriffes und weist dreiecksfoermigen Querschnitt auf, der von abgerundeten Kanten begrenzt wird. Dieser Abschnitt weist ausserordentlich gute ergonomische Merkmale auf und erlaubt ein optimales Fassen des Handgriffes. Die Anordnung dieses Abschnittes mit dreieckigem Querschnitt ist gegenueber dem ersten Abschnitt, der in unmittelbarer Naehe der Schraubendreherklinge vorgesehen ist, versetzt angeordnet.The section which has a circular cross section gradually unites with the middle part of the handle and has a triangular cross section which is delimited by rounded edges. This section has extremely good ergonomic features and allows an optimal grip of the handle. The arrangement of this section with a triangular cross section is offset from the first section, which is provided in the immediate vicinity of the screwdriver blade.

Durch dieses Merkmal wird die Moeglichkeit geschaffen, den Schraubendrehergriff mit dem Handballen derartig zu umfassen, dass der Daumen der Hand stets in natuerlicher Weise auf einer der gewoelbten Seitenflaechen des ersten Abschnittes aufliegt. Die dreieckige Querschnittsform des Mittelstueckes des Handgriffes erlaubt es, Bezugsflaechen fuer die Lage der Werkzeugklinge festzulegen und eine unerwuenschte Drehbewegung der Klinge fuer die Suche des Schraubenschlitzes zu vermeiden. Schliesslich vereint sich der mittlere Abschnitt des Handgriffes mit einer endseitig angeordneten Kalotte, die von kugelartig ausgebildeten Ausschnitten begrenzt wird, wodurch ein einwandfreies ergonomisches Abstuetzen des Endabschnittes in der Handinnenseite moeglich wird.This feature makes it possible to enclose the screwdriver handle with the ball of the thumb in such a way that the thumb of the hand always lies naturally on one of the curved side surfaces of the first section. The triangular cross-sectional shape of the middle part of the handle makes it possible to define reference surfaces for the position of the tool blade and to avoid an undesired rotary movement of the blade for the search of the screw slot. Finally, the middle section of the handle is combined with a spherical cap, which is delimited by spherical cutouts, which makes it possible to support the end section perfectly in the palm of the hand.

Der Erfindungsgegenstand wird nun genauer anhand eines Aus fuehrungsbeispieles beschrieben und in den Zeichnungen dargestellt. Es zeigen

  • Fig. 1 eine Ansicht der Schraubendreherklinge sowie des erfindungsgemaessen Handgriffes;
  • Fig. 2 den Handgriff im Querschnitt entlang der Linie II-II der Fig. 1;
  • Fig. 3 zeigt den Handgriff im Querschnitt entlang der Linie III-III der Fig. 1;
  • Fig. 4 den Handgriff des Schraubendrehers im Querschnitt entlang der Linie IV-IV der Fig. 1.
The subject matter of the invention will now be described in more detail using an exemplary embodiment and shown in the drawings. Show it
  • Figure 1 is a view of the screwdriver blade and the handle according to the invention.
  • Figure 2 shows the handle in cross section along the line II-II of Fig. 1.
  • Fig. 3 shows the handle in cross section along the line III-III of Fig. 1;
  • 4 shows the handle of the screwdriver in cross section along the line IV-IV of FIG. 1st

Wie der Fig. 1 entnommen werden kann, steht die Klinge 1 des Schraubendrehers mit einem Handgriff 2 in Verbindung. Der Handgriff 2 besteht in vorteilhafter Weise aus Kunststoff, dem in einem geeigneten Pressverfahren die gewuenschte Form verliehen wird. Der vordere Abschnitt 3 des Handgriffes 2 weist im Querschnitt (Fig. 2) pseudodreieckige Form auf und die Begrenzungsflaechen 4 haben bogenfoermigen Verlauf.As can be seen from FIG. 1, the blade 1 of the screwdriver is connected to a handle 2. The handle 2 is advantageously made of plastic, which is given the desired shape in a suitable pressing process. The front section 3 of the handle 2 has a pseudo-triangular shape in cross section (FIG. 2) and the boundary surfaces 4 have an arcuate shape.

Der mit 3 gekennzeichnete Abschnitt, der pseudodreieckige Querschnittsform hat, erlaubt es, schnelle Drehbewegungen bei Beginn eines Schraubvorganges oder eines Einstellvorganges mittels einer Schraube durchzufuehren. Dank der Dreiecksform wird dem Benuetzer des Schraubendrehers ein genauer Winkelbezug waehrend des Einschraub- oder Ausschraubvorganges uebermittelt, da die Winkellage des Schraubendrehers an dieser Stelle des Griffes mit den Fingerspitzen erfuehlt werden kann.The section marked with 3, which has a pseudo-triangular cross-sectional shape, allows fast rotary movements to be carried out at the start of a screwing process or an adjustment process by means of a screw. Thanks to the triangular shape, the user of the screwdriver is given a precise angle reference during the screwing or unscrewing process, since the angular position of the screwdriver can be felt with the fingertips at this point on the handle.

Dem mit 3 gekennzeichneten Abschnitt des Handgriffes 2 folgt ein Abschnitt, der mit dem Bezugszeichen 5 gekennzeichnet ist. Dieser Abschnitt weist im Querschnitt Kreisform auf (Fig. 3). Der Abschnitt 5 weist verminderten Durchmesser aehnlich dem Abschnitt 3 mit Pseudodreiecksform auf und ermoeglicht es, mit den Fingern eine rasche Drehbewegung waehrend eines Einschraub- oder Ausschraubvorganges durchzufuehren, das heisst dann, wenn die Schraube noch nicht festgespannt ist.The section of the handle 2 marked with 3 is followed by a section which is marked with the reference number 5. This section has a circular cross section (FIG. 3). Section 5 shows diminished Diameter similar to section 3 with a pseudo-triangular shape and makes it possible to carry out a rapid rotary movement with the fingers during a screwing-in or screwing-out process, that is to say when the screw is not yet tightened.

Der Abschnitt 5 geht allmaehlich in einen Abschnitt 5a mit groesserem Durchmesser ueber und der Abschnitt 5a vereint sich mit dem mittleren Abschnitt 6 des Handgriffes 2.The section 5 gradually merges into a section 5a with a larger diameter and the section 5a merges with the middle section 6 of the handle 2.

Der mittlere Abschnitt 6 weist dreieckige Querschnittsform auf, die gegenueber dem Abschnitt 3, der in unmittelbarer Naehe der Klinge (Fig. 4) angeordnet ist, versetzt ist. Die Seitenflaechen 7 des Abschnittes 6 sind leicht bogenfoermig ausgebildet und ueber Kanten 8 miteinander verbunden, die angefast oder abgerundet ausgebildet sind.The central section 6 has a triangular cross-sectional shape which is offset from the section 3 which is arranged in the immediate vicinity of the blade (FIG. 4). The side surfaces 7 of the section 6 are slightly arched and connected to one another via edges 8 which are chamfered or rounded.

Der mittlere Abschnitt 6 des Handgriffes 2, weist eine Oberflaeche auf, die mit kleinen vorspringenden Noppen 9 uebersaet ist, um somit ein Durchrutschen der Hand bei Einsatz des Schraubendrehers zu vermeiden. Ferner garantiert dieses Merkmal einen sichereren Halt des Handgriffes 2 waehrend des Einsatzes des Werkzeuges.The middle section 6 of the handle 2 has a surface which is covered with small protruding knobs 9, in order to prevent the hand from slipping when the screwdriver is used. Furthermore, this feature guarantees a more secure hold of the handle 2 during the use of the tool.

Der mittlere Abschnitt 6 des Handgriffes geht in den endseitigen Abschnitt 10 des Handgriffes 2 ueber. Das Endstueck C hat die Form einer Kalotte, die von Kugelausschnitten gebildet ist, die ihren Ursprung in Uebereinstimmung mit den Seiten 7 des mittleren Abschnittes 6 haben.The middle section 6 of the handle merges into the end section 10 of the handle 2. The end piece C has the shape of a spherical cap which is formed by spherical cutouts which originate in accordance with the sides 7 of the middle section 6.

Durch Vorsehung dieser endseitig angeordneten Kalotte, die aus kugelfoermigen Ausschnitten zusammengesetzt ist, besteht die Moeglichkeit, eine sichere und ergonomische Auflage fuer die Innenseite der Hand zu schaffen, um bei Festspannen einer Schraube axialen Schub auf diese ausueben zu koennen.Providing this end cap, which is composed of spherical cutouts, makes it possible to create a safe and ergonomic support for the inside of the hand in order to be able to exert axial thrust on a screw when it is tightened.

Zwischen dem mittleren Abschnitt 9 und dem endseitigen Abschnitt 10 des Handgriffes 2 ist ein Fing 11 angeordnet, der in vorteilhafter Weise aus elastischem Material besteht und ueber eine Schnappverbindung in eine Nut 12 eingesetzt ist, die zwischen dem mittleren Abschnitt 6 und dem endseitigen Abschnitt 10 vorgesehen ist.Between the middle section 9 and the end section 10 of the handle 2, a finger 11 is arranged, which advantageously consists of elastic material and is inserted via a snap connection into a groove 12, which is provided between the middle section 6 and the end section 10 is.

Der Ring 11 kann unterschiedliche Farbe aufweisen, um dadurch die Moeglichkeit zu schaffen, ueber die farbliche Differenzierung ein einfaches, rasches Erkennen der Schraubendreherart, z.B. eines Schraubendrehers mit endseitig kreuzfoermig ausgebildeter Klinge oder einem Schraubendreher mit flacher Klinge, zu ermoeglichen. Dies hat sich als besonders nuetzlich erwiesen, wenn die Werkzeuge gemischt in einem Werkzeugwagen oder einem Werkzeugkasten aufbewahrt sind.The ring 11 can have a different color, in order to make it possible to use the color differentiation to easily and quickly identify the type of screwdriver, e.g. a screwdriver with a cross-shaped blade or a screwdriver with a flat blade. This has proven to be particularly useful when the tools are stored mixed in a tool trolley or tool box.

Die Laenge des Handgriffes 2 sowie die Abmessungen der einzelnen Abschnitte 3, 5, 5a, 6 und 10 werden in der Art ausgewaehlt, dass ein Schraubendreher geschaffen wird, der sich durch hoechste ergonomische Form auszeichnet. Bei Erfassen des Werkzeuges liegt die endseitig vorgesehene Kalotte 10 sicher im Inneren der Hand des Benuetzers an, der mittlere Abschnitt 6 kann bequem vom Mittelfinger und Fingfinger umgriffen werden, und der kleine Finger sowie der Daumen, Zusammen mit dem Zeigefinger der Hand des Benuetzers, liegen bequem in Uebereinstimmung mit den Abschnitten 3 und 5 an.The length of the handle 2 and the dimensions of the individual sections 3, 5, 5a, 6 and 10 are in Art selected to create a screwdriver that is characterized by the highest ergonomic shape. When the tool is gripped, the calotte 10 provided at the end rests securely inside the hand of the user, the middle section 6 can be comfortably gripped by the middle finger and finger finger, and the little finger and the thumb, together with the index finger of the hand of the user, lie conveniently in accordance with sections 3 and 5.

Claims (6)

Schraubendreher (1) mit verbessertem Handgriff (2), dadurch gekennzeichnet , dass der Handgriff (2) des Schraubendrehers (1) in seiner Laengsrichtung in Abschnitte (3, 5, 5a, 6, 10) mit unterschiedlicher geometrischer Formgebung unterteilt ist, wobei ein Abschnitt (3) des Handgriffes (2) in unmittelbarer Naehe der Schraubendreherklinge (1), pseudodreieckige Querschnittsform aufweist, die von bogenfoermig verlaufenden Flaechen (4) begrenzt ist, die mit einem Abschnitt (5, 5a) zusammenlaufen, der Kegelstumpfform mit Kreisquerschnitt aufweist, und dieser Abschnitt (5a) in einen zentralen Koerper (6) uebergeht, der pseudodreieckigen Querschnitt aufweist, der gegenueber dem Querschnitt des vorangegangenen Abschnittes (3) versetzt angeordnet ist und von abgerundeten Kanten (8) begrenzt wird und in einen Endabschnitt (10) uebergeht, der die Form einer Kalotte aufweist, die von Kugelausschnitten begrenzt ist.Screwdriver (1) with improved handle (2), characterized in that the handle (2) of the screwdriver (1) is divided in its longitudinal direction into sections (3, 5, 5a, 6, 10) with different geometrical shapes, one Section (3) of the handle (2) in the immediate vicinity of the screwdriver blade (1) has a pseudo-triangular cross-sectional shape which is delimited by curved surfaces (4) which converge with a section (5, 5a) which has the shape of a truncated cone with a circular cross section, and this section (5a) merges into a central body (6) which has a pseudo-triangular cross section, which is offset from the cross section of the previous section (3) and is delimited by rounded edges (8) and merges into an end section (10) , which has the shape of a spherical cap, which is delimited by spherical cutouts. Schraubendreher, mit verbessertem Handgriff, nach Patentanspruch 1, dadurch gekennzeichnet , dass der Handgriff (2) aus Kunststoff besteht, der mit der Schraubendreherklinge (1) durch einen Pressvorgang verbunden ist.Screwdriver, with improved handle, according to claim 1, characterized in that the handle (2) consists of plastic, which is connected to the screwdriver blade (1) by a pressing process. Schraubendreher, mit verbessertem Handgriff, nach Patentanspruch 1, dadurch gekennzeichnet , dass der mittige Abschnitt (6) des Handgriffes eine Oberflaeche aufweist, die fuer die Verbesserung der Griffigkeit mit vorspringenden Noppen (9) versehen ist.Screwdriver, with improved handle, according to claim 1, characterized in that the middle Section (6) of the handle has a surface which is provided with projecting knobs (9) to improve the grip. Schraubendreher, mit verbessertem Handgriff, nach Patentanspruch 1, dadurch gekennzeichnet , dass zwischen dem mittleren Abschnitt (6) des Handgriffes und dem endseitigen Abschnitt (10) ein Kennzeichnungsring (11) vorgesehen ist.Screwdriver, with improved handle, according to claim 1, characterized in that an identification ring (11) is provided between the central section (6) of the handle and the end section (10). Schraubendreher, mit verbessertem Handgriff, nach Patentanspruch 4, dadurch gekennzeichnet , dass der Kennzeichnungsring (11) aus elastischem Material besteht und ueber eine Schnappverbindung mit einer Nut (12) verbindbar ist, die zwischen dem mittleren Abschnitt (6) und dem endseitigen Abschnitt (10) des Handgriffes (2) vorgesehen ist.Screwdriver, with improved handle, according to claim 4, characterized in that the identification ring (11) consists of elastic material and can be connected via a snap connection with a groove (12) which is between the central section (6) and the end section (10 ) of the handle (2) is provided. Schraubendreher, mit verbessertem Handgriff, nach Patentanspruch 5, dadurch gekennzeichnet , dass Kennzeichnungsringe mit unterschiedlicher Einfaerbung Verwendung finden.Screwdriver, with improved handle, according to claim 5, characterized in that identification rings with different coloring are used.
EP19930114958 1992-09-24 1993-09-16 Screwdriver Withdrawn EP0593906A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI920851U 1992-09-24
IT000851 IT226927Z2 (en) 1992-09-24 1992-09-24 SCREWDRIVER WITH PERFECT HANDLE

Publications (2)

Publication Number Publication Date
EP0593906A2 true EP0593906A2 (en) 1994-04-27
EP0593906A3 EP0593906A3 (en) 1994-06-22

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EP19930114958 Withdrawn EP0593906A3 (en) 1992-09-24 1993-09-16 Screwdriver

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EP (1) EP0593906A3 (en)
IT (1) IT226927Z2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662372A1 (en) * 1993-12-21 1995-07-12 Hazet-Werk Hermann Zerver GmbH & Co. KG Grip for hand tool
EP0727289A1 (en) * 1995-02-20 1996-08-21 Bost Garnache Industries Material for screwdriver handle, screwdriver and set of screwdrivers manufactured out of that material, and corresponding manufacturing methods
DE19707954C2 (en) * 1997-01-17 2002-08-01 Hahn Willi Gmbh turning tool
EP1900485A2 (en) * 2006-09-15 2008-03-19 Teleflex Medical Incorporated Ergonomic handle
US20220402112A1 (en) * 2021-06-18 2022-12-22 Kabo Tool Company Handle of Hand Tool

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1587230A (en) * 1968-02-21 1970-03-13
DE2434592B1 (en) * 1974-07-18 1975-09-04 Hazet-Werk Hermann Zerver, 5630 Remscheid Tool handle
DE8716099U1 (en) * 1987-12-05 1988-01-28 Stephan Witte Gmbh & Co Kg, 5800 Hagen, De
DE4037592A1 (en) * 1989-11-28 1991-05-29 Manfred Lauber Tool handle with screwdriver - has varying cross=sectional profile with smaller girth near to tool-blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1587230A (en) * 1968-02-21 1970-03-13
DE2434592B1 (en) * 1974-07-18 1975-09-04 Hazet-Werk Hermann Zerver, 5630 Remscheid Tool handle
DE8716099U1 (en) * 1987-12-05 1988-01-28 Stephan Witte Gmbh & Co Kg, 5800 Hagen, De
DE4037592A1 (en) * 1989-11-28 1991-05-29 Manfred Lauber Tool handle with screwdriver - has varying cross=sectional profile with smaller girth near to tool-blade

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0662372A1 (en) * 1993-12-21 1995-07-12 Hazet-Werk Hermann Zerver GmbH & Co. KG Grip for hand tool
EP0727289A1 (en) * 1995-02-20 1996-08-21 Bost Garnache Industries Material for screwdriver handle, screwdriver and set of screwdrivers manufactured out of that material, and corresponding manufacturing methods
FR2730658A1 (en) * 1995-02-20 1996-08-23 Bost Garnache Ind SCREWDRIVER BLANK, SCREWDRIVER AND RANGE OF SCREWDRIVER PRODUCED FROM SUCH A BLANK, AND METHODS OF MANUFACTURE THEREOF
DE19707954C2 (en) * 1997-01-17 2002-08-01 Hahn Willi Gmbh turning tool
EP1900485A2 (en) * 2006-09-15 2008-03-19 Teleflex Medical Incorporated Ergonomic handle
EP1900485A3 (en) * 2006-09-15 2008-05-28 Teleflex Medical Incorporated Ergonomic handle
US20220402112A1 (en) * 2021-06-18 2022-12-22 Kabo Tool Company Handle of Hand Tool

Also Published As

Publication number Publication date
IT226927Z2 (en) 1997-07-22
ITMI920851U1 (en) 1994-03-24
ITMI920851V0 (en) 1992-09-24
EP0593906A3 (en) 1994-06-22

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