EP1541294B1 - Handle set for hand or garden tools - Google Patents

Handle set for hand or garden tools Download PDF

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Publication number
EP1541294B1
EP1541294B1 EP04029119A EP04029119A EP1541294B1 EP 1541294 B1 EP1541294 B1 EP 1541294B1 EP 04029119 A EP04029119 A EP 04029119A EP 04029119 A EP04029119 A EP 04029119A EP 1541294 B1 EP1541294 B1 EP 1541294B1
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EP
European Patent Office
Prior art keywords
handle
shaft
parts
handle parts
axis
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.)
Not-in-force
Application number
EP04029119A
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German (de)
French (fr)
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EP1541294A1 (en
Inventor
Horst Holland-Letz
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
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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
Priority claimed from DE202004000140U external-priority patent/DE202004000140U1/en
Application filed by Felo Werkzeugfabrik Holland Letz GmbH filed Critical Felo Werkzeugfabrik Holland Letz GmbH
Priority to EP07023752A priority Critical patent/EP1892063A3/en
Publication of EP1541294A1 publication Critical patent/EP1541294A1/en
Application granted granted Critical
Publication of EP1541294B1 publication Critical patent/EP1541294B1/en
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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
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices
    • B25G3/32—Locking and securing devices in association with, or including, tang, bolt, or other member passing axially through whole length of handle

Definitions

  • the invention relates to a handle set for at least one hand or garden tool, according to the preamble of claim 1.
  • a sentence set is from the document EP 1 184 137 known.
  • handles for hand and garden tools are understood to mean, in particular, those for hammers, trowels, saws, chisels, tongs, grave scoops, hand rakes and other similar devices, in the use of which the hand is to adopt a preferred coupling position to the handle
  • the handle fills the hand that surrounds it with a full attachment to the palm of the hand and avoids higher pressure loads and unnecessary tension of the hand and arm muscles.
  • a handle set for such tools which has a plurality of different handle parts and each handle can be assembled by a combination of two or more identical and / or different handle parts.
  • the handle parts are fastened in the same way on the shaft of the respective hand or garden tool.
  • the grip parts essentially consist of handle halves with different surface contours but congruent contact surfaces, with which they adjoin one another flush with the surface and rest against the shank of the tool.
  • the surface contours differ in that the bulges are shaped differently in such a way that the surface contour provided for abutment in the cavity of the hand embracing the handle is more bulged than the surface contour provided for engagement with the fingers of the hand gripping the handle.
  • the right-hand grip part attached to the shank of the tool has the more convex surface contour, while the left-hand grip part has the flatter curved surface contour.
  • the distances of the surface points from the central axis of the handle set are greater than those for a handle set intended for a user with medium-sized hands and this in turn larger than a provided for a user with small hands handle set.
  • each handle can be assembled individually from a kit having matched items which can be selected depending on the hand shape and / or sizes and / or user preferences given in the particular case. It therefore no longer need for all conceivable cases, the tools with different handle variants in relatively small series completely made and kept in stock, but only on the one hand the tools with the type corresponding uniform shaft and on the other hand, the associated handle parts, later with the shafts of the Tools are connected.
  • the grip parts preferably consist of shell-like handle halves.
  • the invention has the advantage that only one pair of handle parts is required for each hand size, wherein each of the two handle parts can be mounted on the right or left or on the top or bottom of the shank of the tool.
  • the tool can thus be prepared with the one pair of handle parts for use by a right-handed or left-handed person.
  • the congruent contact surfaces of the two gripping parts are not only symmetrical to the common longitudinal axis but also symmetrical about a transverse axis perpendicular to the contact surfaces and passing through the longitudinal axis and a second transverse axis Z lying in the plane of the contact surfaces runs.
  • the grip part with the more convex grip contour is to be mounted from the right side of the shaft to the left side, it will be 180 ° about the transverse axis or symmetry axis rotated, as well as 180 ° about the longitudinal axis y, or 180 ° about the Z-axis.
  • the front edge of the handle which lies when gripping the handle in the bending region of the fingers, comes through this rotation back into the correct position to the shaft.
  • the grip part with the flat convex surface contour if it is to be mounted on its right side instead of on the left side of the shaft. Through the rotations, the contact surfaces of the two handle parts are brought back into the correct position to each other.
  • the connection of the handle parts to the shaft can, for a not included in the claims embodiments, not only be done in such a way that the two handle parts completely enclose the shaft and lie flush against the surface.
  • the handle set can also be designed so that the shaft on both sides has surfaces that are congruent with the surfaces with which the grip parts to come to rest on the shaft, the shaft having in a strip-shaped part a projecting from the base web, whose Surface forms part of the surface of the handle.
  • the surface of the web may, for example, form part of the top of the handle or the underside or, if the shaft has two webs, both sides. Likewise, the webs can form parts of the two sides of the handle.
  • the gripping parts preferably removable on the shaft. If the grip parts are mounted on the shaft of the manufacturer so that the tool is designed for right-handers, which corresponds to the majority of users, a left-hander can solve the handle parts by a simple manual from the shaft and remount for themselves suitable.
  • the attachment of the handle parts on the shaft is made by screws, snap-in connections or hinged connections that are detachable from the outside.
  • a handle for a blade saw will be described.
  • This handle consists of a base handle, which is made of two half-shells by injection molding of plastic.
  • the composite half shells form a stable hollow body.
  • the half shells in the area which is enclosed by the hand, each having a U-shaped connecting web. If the half-shells are assembled, the two U-shaped webs form a closed rectangular cross-section box profile.
  • the webs have openings in the walls, through which engage the integrally formed on the handle fasteners.
  • the base handle can also. be made of a material other than plastic, such as steel or wood.
  • the right, not inventive handle side (1) is more bulged than the left handle side (2).
  • the handle with this contour is designed for right-handed people.
  • Fig. 2 is the left, not inventive handle side (3) bulged more than the right handle side (4).
  • the handle with this contour is designed for left-handers.
  • the base handle (5) in which the saw blade is attached, in the area in which the hand engages around the handle, not designed in one piece.
  • handle parts (6, 7) attached to a shaft (12), wherein the handle part (7) is attached to the non-visible side of the handle, which is integrally part of the base handle (5).
  • the shaft (12) is, as a hidden part, drawn in dashed lines in this illustration.
  • Fig. 4a to 4c the various mounting positions of the handle parts (6,7) are shown and drawn to further explain an Axis XYZ.
  • the Y-axis is the longitudinal axis, perpendicular to it is the Z-axis, in the plane of the contact surfaces and extending through the mid-point of the length of the handle parts (6,7), the X-axis is perpendicular to the plane of the contact surfaces and extends also through the center of the length of the handle parts.
  • FIG. 4a Both handle parts (6, 7) are visible, which enclose the shaft (12) and between the connection heads (8a, 8b) of the base handle (5), consisting of two half-shells (5a, 5b), are fitted.
  • the handle parts (6, 7) are mounted for right-handed people.
  • the congruent contact surfaces (17) of the handle parts abut each other in the YZ plane.
  • the contours of the contact surfaces are assigned to the YZ- axis cross in the same way.
  • the handle parts (6, 7) from the shaft (12) of the base handle (5) is released, rotated 180 ° about the axis x - x and about the longitudinal axis yy of the handle parts or 180 ° about the Z axis, such as in Fig. 4c shown so that the contact surfaces are facing each other again, and on the other side of the shaft (12) attached.
  • the contact surfaces (17) of the handle parts (6, 7) are congruent, created by the Ummontage a mirrored to the original position handle.
  • the elements of a snap connection, a hinge-like connection or a screw connection and the taps of the handle parts are designed and arranged so that the mirror image mounting is possible.
  • a handle can be designed, for example, for a trowel.
  • Fig. 6 shows an open half-shell (5b) of the base handle (5).
  • the two half shells are bolted together with the saw blade in the front area. Since this is not the subject of the application, this will not be discussed further.
  • the shaft (12) of the composite base handle (5) is preferably rectangular in cross-section and hollow. On the two handles (5a, 5b) of the base handle one half of the shaft (12) is formed as a U-shaped profile part in each case.
  • the grip part (7) is fitted without play between the connection heads (8a, 8b) and, with its grip core (13), also surrounds the shaft (12b) without play.
  • cylindrical or rectangular projections (18) are preferably integrally formed on the connecting heads (8a, 8b) at the transition point to the shaft. These approaches dip into corresponding recesses in the grip cores (13) of the handle part (7).
  • the snap connection (15) of the handle part (7) with the shaft (12) is formed in such a way that on the handle cores (13) latch-like resilient projections (15a) are integrally formed.
  • the latch hooks formed at the end thereof engage through the wall of the shaft half (12b) which is open at the points concerned and engage behind a counter pawl (15b), which in turn is integrally formed on the inside of the shaft half (12b).
  • a counter pawl (15b) which in turn is integrally formed on the inside of the shaft half (12b).
  • holes (22) are formed on the surfaces of the connection heads (8a, 8b). Through these holes, for example, the blade of a Phillips screwdriver can be introduced. With their tip under the protruding front parts of the pawl hooks, which emanate from the handle part (7), cross the latch hooks can be raised and the snap connection can be solved.
  • centering pin (16) are further formed, which engage in holes in the opposite handle core of the handle part (6) and strengthen the connection of the two parts.
  • the contact surface (17) is formed by the surface of the handle core (13) and the coating (14).
  • the second half-shell (5a) which is not shown, is designed substantially mirror-inverted to the half-shell (5b).
  • the latch hooks formed on the resilient lugs engage next to the pawl hooks (15a) of the grip part (7) via a counterpaw which is attached to the shaft half (12a).
  • the grip part (6) has holes into which the pins (16) dip.
  • the half-shells (5a, 5b) of the base handle (5) are stiffened in the production version by ribbing.
  • the grip cores (13) can be made as solid-walled parts, but also on the contact side to the shaft (12) formed partially hollow and stiffened by ribbing and rest with the ribs on the shaft (12).
  • the grip part (7) is in Fig. 6 shown as consisting of the handle core (13) and the coating (14) with the soft plastic. But it can also be made in one piece from only one plastic, as well as the handle part (6).
  • the Fig. 7 shows an enlarged cross section through the handle in the region of the snap connection, along the line II in FIG Fig. 6 , It can be seen how the pawls (15a) on the counter pawls (15b) engage and secure in this way the handle parts (6,7) on the shaft (12).
  • a snap connection 15
  • two or more snap connections can also be arranged.
  • the in the FIGS. 6 and 7 shown connection of the handle parts (6, 7) with the shaft (12) requires that the half-shells (5a, 5b) in the region of the shaft (12) are firmly connected by gluing or welding.
  • connection of the half shells (5a, 5b) can be achieved in that the resilient lugs (15a) are extended and the counter pawls (15b) are not attached to the shaft half to which the respective handle part is placed, but on the opposite half of the shaft.
  • the latch hooks integrally formed on the grip part (7) thus engage behind a counterpawl which is integrally formed on the shaft half (12a) and, conversely, the latch hooks formed on the grip part (6) behind a counterpaw formed on the shaft half (12b) ,
  • Fig. 8 and 9 show a variant in which the connection of the handle parts (6, 7) with the shaft (12) is not carried out by one or more snap connections, but by a hinge-like design of the compound.
  • a plurality of hinge elements (19) in the form of lugs on the handle parts (6, 7) are integrally formed. These elements protrude through openings in the wall of the shaft (12) into the cavity of the shaft.
  • the hinge element (19) of the opposite grip parts (6, 7) are in the cavity of the shaft (12) side by side. They are arranged so that after rotation by 180 ° about the z- axis, the hinge elements (19) on the other side of the shaft (12) again fit into the openings in the shaft.
  • the ends of the hinge elements have holes whose centers lie on an axis II-II of the shaft.
  • connection heads (8a, 8b) of the half-shells (5a, 5b) are in alignment with the axis II - II also bores (22) and / or hinge elements (19a) formed with holes. All holes have the same diameter.
  • a hinge pin (20) is inserted as a fastener. The diameter of the hinge pin and holes are tolerated to each other so that a sliding fit of the pin is achieved. In this way, the two handle parts (6, 7) and the half-shells (5a, 5b) of the base handle (5) in this area firmly but detachably connected to each other.
  • the hinge pin can also be provided at one end with a short thread and a screw head, which is inserted in a connection head (8a or 8b).
  • the screw head has an internal profile, for example Phillips on, so that the hinge pin with a screwdriver corresponding to the inner profile can first be unscrewed from the threaded seat and then completely pulled out of his seat. After reacting the handle parts (6, 7) they are connected by inserting the hinge pin (20) again with the shaft (12) or the base handle.
  • the handle parts (6, 7) can be made of a plastic as one-component parts, a hard or an elastic plastic, or as a two-component handle with a hard grip core (13) and a coating (14) soft plastic.
  • the grip parts (6, 7) can also be connected by screws to the shaft (12) or the base grip (5).
  • the screws are expediently inserted laterally into a first grip part (6 or 7), inserted through holes in the shaft (12) and screwed into the second grip part, so that the grip parts (6, 7) are braced against each other and with the shaft (12) ,
  • the grip system according to the invention can also be used for other handles or tools than the tools shown by way of example.
  • Handles of this embodiment can also be used, for example, in hammers, chisels, large knives. Hand gardening tools or control levers are used.
  • the shanks in their shape, the dimensions, the cross-sectional profile, their extension in the longitudinal direction and the dimensions of the terminal regions and the fastening elements on the handle parts and the shaft can be designed differently than in the examples and the description shown in the examples, as long as the scope of the patent is not left.
  • the shaft can be made of plastic, metal or wood, the handle parts made of plastic or wood.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food-Manufacturing Devices (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Massaging Devices (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Table Equipment (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)

Abstract

The handle set provides a handle for attachment o a tool shaft that can be oriented for left and right-handed users and contains two separate handle parts that have a continuous surface contour in the bounding region. The handle parts have congruent contact surfaces formed symmetrically with respect to a longitudinal axis and to the transverse axes.

Description

Die Erfindung betrifft einen Griffsatz für wenigstens ein Hand- oder Gartenwerkzeug, gemäß dem Oberbegriff des Anspruchs 1. Ein solcher Grittsatz ist aus der Dokument EP 1 184 137 bekannt.The invention relates to a handle set for at least one hand or garden tool, according to the preamble of claim 1. Such a sentence set is from the document EP 1 184 137 known.

Unter Griffen für Hand- und Gartenwerkzeuge werden im Rahmen der vorliegenden Erfindung vor allem solche für Hämmer, Maurerkellen, Sägen, Stechbeitel, Zangen, Grabschaufel, Handharke und andere ähnliche Geräte verstanden, bei deren Gebrauch die Hand eine bevorzugte Koppelstellung zum Griff einnehmen soll, damit der Griff die ihn umschließende Hand mit satter Anlage an die Handfläche ausfüllt und höhere Druckbelastungen sowie unnötige Verspannungen der Hand- und Armmuskulatur vermieden werden.For the purposes of the present invention, handles for hand and garden tools are understood to mean, in particular, those for hammers, trowels, saws, chisels, tongs, grave scoops, hand rakes and other similar devices, in the use of which the hand is to adopt a preferred coupling position to the handle The handle fills the hand that surrounds it with a full attachment to the palm of the hand and avoids higher pressure loads and unnecessary tension of the hand and arm muscles.

Aus DE 100 42 859 C2 und EP 1 184 137 A2 ist ein Griffsatz für derartige Werkzeuge bekannt, der eine Mehrzahl von unterschiedlichen Griffteilen aufweist und jeder Handgriff durch Kombination von zwei oder mehr gleichen und/oder unterschiedlichen Griffteilen zusammensetzbar ist. Dabei sind die Griffteile in gleicher Weise am Schaft des jeweiligen Hand- oder Gartenwerkzeuges befestigbar. Die Griffteile bestehen im Wesentlichen aus Griffhälften mit unterschiedlichen Oberflächenkonturen aber kongruenten Berührungsflächen, mit denen sie oberflächenbündig aneinandergrenzen und am Schaft des Werkzeuges anliegen. Die Oberflächenkonturen unterscheiden sich dadurch, dass die Auswölbungen unterschiedlich ausgeformt sind und zwar in der Weise, dass die zum Anliegen in der Höhlung der den Griff umgreifenden Hand vorgesehene Oberflächenkontur stärker ausgewölbt ist als die zum Anliegen an die Finger der den Griff umgreifenden Hand vorgesehene Oberflächenkontur.Out DE 100 42 859 C2 and EP 1 184 137 A2 For example, a handle set for such tools is known which has a plurality of different handle parts and each handle can be assembled by a combination of two or more identical and / or different handle parts. The handle parts are fastened in the same way on the shaft of the respective hand or garden tool. The grip parts essentially consist of handle halves with different surface contours but congruent contact surfaces, with which they adjoin one another flush with the surface and rest against the shank of the tool. The surface contours differ in that the bulges are shaped differently in such a way that the surface contour provided for abutment in the cavity of the hand embracing the handle is more bulged than the surface contour provided for engagement with the fingers of the hand gripping the handle.

Bei einem für einen Rechtshänder vorgesehenen Griffsatz weist das am Schaft des Werkzeuges angebrachte rechte Griffteil die stärker ausgewölbte Oberflächenkontur auf, während das linke Griffteil die flachere ausgewölbte Oberflächenkontur aufweist.In the case of a grip set provided for a right-handed person, the right-hand grip part attached to the shank of the tool has the more convex surface contour, while the left-hand grip part has the flatter curved surface contour.

Bei einem für einen Linkshänder vorgesehenen Griffsatz ist es umgekehrt. Weiterhin sind die Auswölbungen bei verschiedenen Griffsätzen auch in ihrem Verlauf und in den Abständen der Oberflächenpunkte von der Mittelachse des Griffsatzes unterschiedlich.In a provided for a left-handed grip set, it is the other way around. Furthermore, the bulges are different in different grip sets in their course and in the distances of the surface points of the central axis of the handle set.

Bei einem Griffsatz, der für einen Benutzer mit großen Händen vorgesehen ist, sind die Abstände der Oberflächenpunkte von der Mittelachse des Griffsatzes größer als die bei einem für einen Benutzer mit mittelgroßen Händen vorgesehene Griffsatz und dieser wiederum größer als bei einem für einen Benutzer mit kleinen Händen vorgesehene Griffsatz.In a handle set intended for a user with large hands, the distances of the surface points from the central axis of the handle set are greater than those for a handle set intended for a user with medium-sized hands and this in turn larger than a provided for a user with small hands handle set.

Diese Erfindung bringt den Vorteil mit sich, dass jeder Handgriff aus einem Baukasten individuell zusammengesetzt werden kann, der aufeinander abgestimmte Einzelteile aufweist, die in Abhängigkeit von den im Einzelfall gegebenen Handform und/oder - größen und/oder Benutzerwünsche ausgewählt werden können. Es brauchen daher nicht mehr für alle denkbaren Fälle die Werkzeuge mit verschiedenen Griffvarianten in verhältnismäßig kleinen Serien komplett hergestellt und auf Lager gehalten werden, sondern nur einerseits die Werkzeuge mit dem Typentsprechenden einheitlichen Schaft und andererseits die zugehörigen Griffteile, die später nach Bedarf mit den Schäften der Werkzeuge verbunden werden. Durch diese Produktionsmethode ist eine kostengünstige Vorfertigung in großen Serien möglich, auch die Lagerhaltung wird vereinfacht und kostensparend. Die Griffteile bestehen vorzugsweise aus schalenartigen Griffhälften.This invention has the advantage that each handle can be assembled individually from a kit having matched items which can be selected depending on the hand shape and / or sizes and / or user preferences given in the particular case. It therefore no longer need for all conceivable cases, the tools with different handle variants in relatively small series completely made and kept in stock, but only on the one hand the tools with the type corresponding uniform shaft and on the other hand, the associated handle parts, later with the shafts of the Tools are connected. By this production method, a cost-effective prefabrication in large series is possible, and storage is simplified and cost-saving. The grip parts preferably consist of shell-like handle halves.

Die Aufgabe ist es, die Zahl der Griffteile, die zum Zusammensetzen der verschiedenen Handgriffe benötigt wird, zu vermindern. Zur Lösung dieser Aufgabe dienen die kennzeichnenden Merkmale des Anspruchs 1. Vorteilhafte Ausführungen sind in den Unteransprüchen beschrieben.The task is to reduce the number of handle parts needed to assemble the various handles. To solve this problem, the characterizing features of claim 1. Advantageous embodiments are described in the subclaims.

Die Erfindung bringt den Vorteil mit sich, dass für jede Handgröße nur ein Paar von Griffteilen benötigt wird, wobei jedes der beiden Griffteile rechts oder links beziehungsweise auf der Oberseite oder Unterseite am Schaft des Werkzeuges montiert werden kann. Das Werkzeug kann also mit dem einen Paar von Griffteilen zur Benutzung für einen Rechtshänder oder Linkshänder hergerichtet werden. Um das zu ermöglichen, sind die kongruenten Berührungsflächen der beiden Griffteile nicht nur symmetrisch zur gemeinsamen Längsachse sondern auch symmetrisch zu einer Querachse, die im rechten Winkel zu den Berührungsflächen steht und durch die Längsachse verläuft und einer zweiten Querachse Z, die in der Ebene der Berührungsflächen verläuft. Soll zum Beispiel das Griffteil mit der stärker ausgewölbten Griffkontur von der rechten Seite des Schaftes auf die linke Seite montiert werden, wird es um 180° um die Querachse

Figure imgb0001
oder Symmetrieachse gedreht, sowie um 180° um die Längsachse y, beziehungsweise um 180° um die Z-Achse. Die Vorderkante des Griffes, die beim Umgreifen des Griffes im Knickbereich der Finger liegt, kommt durch diese Drehung wieder in die richtige Lage zum Schaft. Das gleiche gilt für das Griffteil mit der flacher ausgewölbten Oberflächenkontur, wenn es statt an der linken Seite des Schaftes an dessen rechter Seite montiert werden soll. Durch die Drehungen werden die Berührungsflächen der beiden Griffteile wieder in die richtige Lage zueinander gebracht.The invention has the advantage that only one pair of handle parts is required for each hand size, wherein each of the two handle parts can be mounted on the right or left or on the top or bottom of the shank of the tool. The tool can thus be prepared with the one pair of handle parts for use by a right-handed or left-handed person. To make this possible, the congruent contact surfaces of the two gripping parts are not only symmetrical to the common longitudinal axis but also symmetrical about a transverse axis perpendicular to the contact surfaces and passing through the longitudinal axis and a second transverse axis Z lying in the plane of the contact surfaces runs. If, for example, the grip part with the more convex grip contour is to be mounted from the right side of the shaft to the left side, it will be 180 ° about the transverse axis
Figure imgb0001
or symmetry axis rotated, as well as 180 ° about the longitudinal axis y, or 180 ° about the Z-axis. The front edge of the handle, which lies when gripping the handle in the bending region of the fingers, comes through this rotation back into the correct position to the shaft. The same applies to the grip part with the flat convex surface contour if it is to be mounted on its right side instead of on the left side of the shaft. Through the rotations, the contact surfaces of the two handle parts are brought back into the correct position to each other.

Die Verbindung der Griffteile mit dem Schaft kann , für eine von den Patentansprüchen nicht umfasste Ausführungsforme, nicht nur in der Weise erfolgen, dass die beiden Griffteile den Schaft vollständig umschließen und oberflächenbündig aneinanderliegen. Der Griffsatz kann auch so gestaltet sein, dass der Schaft beiderseits Flächen aufweist, die kongruent sind mit den Flächen, mit denen die Griffteile zur Anlage an dem Schaft kommen sollen, wobei der Schaft in einem streifenförmigen Teil einen von der Basis abstehenden Steg aufweist, dessen Oberfläche einen Teil der Oberfläche des Griffes bildet. Die Oberfläche des Steges kann beispielsweise einen Teil der Oberseite des Griffes oder der Unterseite oder - wenn der Schaft zwei Stege aufweist - beide Seiten bilden. Ebenso können die Stege Teile der beiden Seiten des Griffes bilden.The connection of the handle parts to the shaft can, for a not included in the claims embodiments, not only be done in such a way that the two handle parts completely enclose the shaft and lie flush against the surface. The handle set can also be designed so that the shaft on both sides has surfaces that are congruent with the surfaces with which the grip parts to come to rest on the shaft, the shaft having in a strip-shaped part a projecting from the base web, whose Surface forms part of the surface of the handle. The surface of the web may, for example, form part of the top of the handle or the underside or, if the shaft has two webs, both sides. Likewise, the webs can form parts of the two sides of the handle.

Um für den Hersteller und den Handel die Zahl der geführten Artikel möglichst gering zu halten, ist vorgesehen, die Griffteile vorzugsweise demontierbar am Schaft zu befestigen. Werden die Griffteile beim Hersteller so am Schaft montiert, dass das Werkzeug für Rechtshänder ausgelegt ist, was der Mehrzahl der Benutzer entspricht, so kann ein Linkshänder die Griffteile an Hand einer einfachen Anleitung vom Schaft lösen und für sich passend ummontieren. Die Befestigung der Griffteile am Schaft erfolgt durch Schrauben, Schnappverbindungen oder scharnierartige Verbindungen, die von außen lösbar sind.In order to keep the number of guided articles as low as possible for the manufacturer and the trade, it is provided to fasten the gripping parts preferably removable on the shaft. If the grip parts are mounted on the shaft of the manufacturer so that the tool is designed for right-handers, which corresponds to the majority of users, a left-hander can solve the handle parts by a simple manual from the shaft and remount for themselves suitable. The attachment of the handle parts on the shaft is made by screws, snap-in connections or hinged connections that are detachable from the outside.

Zur Optimierung des Griffkomforts beziehungsweise der Haptik ist die Form des Gesamtgriffes nicht nur nach Anforderungen der Ergonomie optimiert, sondern die Oberfläche der Griffteile ist bei einer besonders hochwertigen Ausführung mit einer Beschichtung aus Weichkunststoff versehen.
Als Beispiel für einen solchen Griff wird ein Griff für eine Blattsäge beschreiben. Dieser Griff besteht aus einem Basisgriff, der aus zwei Halbschalen im Spritzgießverfahren aus Kunststoff hergestellt ist. Die zusammengesetzten Halbschalen bilden einen stabilen Hohlkörper. Zur Befestigung der Griffteile weisen die Halbschalen im Bereich, der von der Hand umschlossen wird, jeweils einen U-förmigen Verbindungssteg auf. Werden die Halbschalen zusammengesetzt, bilden die beiden U-förmigen Stege ein geschlossenes im Querschnitt rechteckiges Kastenprofil. Die Stege weisen in den Wandungen Durchbrechungen auf, durch welche die an den Griffteilen angeformten Befestigungselemente greifen. Der Basisgriff kann auch. aus einem anderen Material als Kunststoff hergestellt sein, etwa aus Stahl oder Holz.To optimize the grip comfort or the feel, the shape of the overall grip is not only optimized to ergonomic requirements, but the surface of the handle parts is provided in a particularly high quality version with a coating of soft plastic.
As an example of such a handle, a handle for a blade saw will be described. This handle consists of a base handle, which is made of two half-shells by injection molding of plastic. The composite half shells form a stable hollow body. To attach the handle parts, the half shells in the area which is enclosed by the hand, each having a U-shaped connecting web. If the half-shells are assembled, the two U-shaped webs form a closed rectangular cross-section box profile. The webs have openings in the walls, through which engage the integrally formed on the handle fasteners. The base handle can also. be made of a material other than plastic, such as steel or wood.

In den Zeichnungen ist der Erfindungsgegenstand beispielhaft dargestellt. Es zeigen:

Fig. 1
eine schematische Darstellung in Umrißlinien einer Projektion von der Oberseite eines nicht erfindungsgemäßen Griffes für Rechtshänder. Darin sind:
  1. (1) die - von hinten gesehen - stärker ausgewölbte rechte Griffseite
  2. (2) die - von hinten gesehen - schwächer ausgewölbte linke Griffseite
Fig. 2
eine ebensolche Projektion eines nicht erfindungsgemäßen Griffes für Linkshänder. Darin sind:
  • (3) die - von hinten gesehen - stärker ausgewölbte linke Griffseite
  • (4) die - von hinten gesehen - schwächer ausgewölbte rechte Griffseite
Fig. 3
einen Griff für Blattsägen in einer Seitenansicht mit dem auf dem Schaft des Basisgriffes aufgesetztem Griffteil.
Darin sind:
  • (5) der Basisgriff
  • (6) ein aufgesetztes - linkes - Griffteil
  • (8a, 8b) die Anschlußköpfe des Basisgriffes (5) für die Griffteile (6, 7)
  • (12) der Schaft des Basisgriffes, gestrichelt gezeichnet
Fig. 4a
einen Griff für Blattsägen in einer Ansicht von hinten auf das Oberteil des Griffes beziehungsweise den Griffrücken, die Griffteile sind für Rechtshänder montiert.
Darin sind:
  • (5a, 5b) die Halbschalen des Basisgriffes (5)
  • (6) das schwächer ausgewölbte linke Griffteil
  • (7) das stärker ausgewölbte rechte Griffteil
  • (8a, 8b) die Anschlußköpfe des Basisgriffes (5) für die Griffteile (6, 7)
  • (12) der Schaft des Basisgriffes
  • (17) die Berührungsflächen-Ebene
  • (x - x) die Querachse beziehungsweise Symmetrieachse der Griffteile (6, 7)
  • (y - y) die Längsachse des Griffes
  • (Z) die in der Ebene der Berührungsfläche verlaufende Querachse
Fig. 4b
einen Griff in Stellung wie in Fig. 4a, die Griffteile jedoch montiert für Linkshänder
Fig. 4c
eine Ansicht der Konturen der Berührungsflächen der aufgeklappten Griffteile mit Darstellung der Achsen (x, y, z)
Fig. 5
einen nicht erfindungsgemäßen Griff für eine Kelle in einer Ansicht von oben auf das Oberteil des Griffes beziehungsweise den Griffrücken.
Darin sind:
  • (9) der Basisgriff des Kellengriffes
  • (10) das stärker ausgewölbte rechte Griffteil
  • (11) das schwächer ausgewölbte linke Griffteil
Fig. 6
eine Ansicht auf den Sägengriff gemäß Fig. 3, bei dem das linke Griffteil entfernt und die Schnappverbindung sichtbar ist.
Darin sind:
  • (5b) eine Halbschale des Basisgriffes (5)
  • (12b) eine Hälfte des Schaftes (12) des Basisgriffes (5)
  • (7) das rechte Griffteil
  • (8a, 8b) die Anschlußköpfe des Basisgriffes (5) für die Griffteile (6,7)
  • (13) der Griffkern des rechten Griffteils aus hartem Kunststoff
  • (14) die Beschichtung des Griffteils aus Weichkunststoff
  • (15) Schnappverbindungs-Elemente am Griffkern des Griffteiles, zur Befestigung des Griffteiles am Schaft (12)
  • (15a) Klinken der Schnappverbindung
  • (15b) Gegenklinke
  • (16) Zapfen am Griffkern des Griffteites (7) vorgesehen zum Eintauchen in Bohrungen im gegenüberstehenden Griffteil (6)
  • (17) die Berührungsfläche
  • (22) Bohrung im Anschlußkopf (8b)
Fig. 7
einen Querschnitt durch den Griff gemäß Fig. 3 der Linie I-I.
Darin sind:
  • (12) der Schaft des Basisgriffes (5)
  • (6) das schwächer ausgewölbte linke Griffteil
  • (7) das stärker ausgewölbte rechte Griffteil
  • (15a) Klinken der Schnappverbindung
  • (15b) Gegenklinke
  • (17) die kongruenten Berührungsflächen der Griffteile (6,7)
Fig. 8
eine offene Halbschale (5b) des Basisgriffes mit einem angesetzten Griffteil.
Darin sind:
  • (5b) die Halbschale des Basisgriffes
  • (7) ein Griffteil
  • (12) der Schaft des Basisgriffes
  • (16) Zentrierzapfen
  • (19, 19a) Scharnier-Elemente
  • (20) der Schamierstift
  • (21) Führungselemente für den Scharnierbolzen
Fig. 9
einen Querschnitt durch den Griff entlang einer Linie II-II in Fig. 3
Darin sind:
  • (5a, 5b) die zwei Halbschalen des Basisgriffes
  • (6, 7) zwei Griffteile
  • (12) der Schaft des Basisgriffes
  • (19, 19a) Scharnier-Elemente
  • (20) der Scharnierstift
  • (21) Führungselemente für den Scharnierbolzen
In the drawings, the subject invention is exemplified. Show it:
Fig. 1
a schematic representation in outline of a projection from the top of a handle not according to the invention for right-handed people. In it are:
  1. (1) - seen from behind - more bulging right handle side
  2. (2) - seen from behind - weaker curved left handle side
Fig. 2
a similar projection of a non-inventive handle for left-handers. In it are:
  • (3) - seen from the rear - more bulging left handle side
  • (4) the - viewed from behind - weaker bulging right handle side
Fig. 3
a handle for a saw blade in a side view with the mounted on the shaft of the base handle handle part.
In it are:
  • (5) the base grip
  • (6) an attached - left - handle part
  • (8a, 8b) the connection heads of the base handle (5) for the handle parts (6, 7)
  • (12) the shaft of the base handle, drawn by dashed lines
Fig. 4a
a handle for saws in a view from behind on the upper part of the handle or the handle back, the handle parts are mounted for right-handed.
In it are:
  • (5a, 5b) the half-shells of the base handle (5)
  • (6) the lower bulging left handle
  • (7) the more bulging right handle
  • (8a, 8b) the connection heads of the base handle (5) for the handle parts (6, 7)
  • (12) the shaft of the base handle
  • (17) the interface surface
  • (x - x) the transverse axis or symmetry axis of the grip parts (6, 7)
  • (y - y) the longitudinal axis of the handle
  • (Z) the transverse axis extending in the plane of the interface
Fig. 4b
a handle in position as in Fig. 4a However, the handle parts mounted for left-handers
Fig. 4c
a view of the contours of the contact surfaces of the unfolded handle parts with representation of the axes (x, y, z)
Fig. 5
a non-inventive handle for a trowel in a view from above on the upper part of the handle or the handle back.
In it are:
  • (9) the base handle of the trowel handle
  • (10) the more bulging right handle
  • (11) the weaker bulging left handle
Fig. 6
a view of the saw handle according to Fig. 3 in which the left handle part is removed and the snap connection is visible.
In it are:
  • (5b) a half-shell of the base handle (5)
  • (12b) one half of the shank (12) of the base handle (5)
  • (7) the right grip part
  • (8a, 8b) the connection heads of the base handle (5) for the handle parts (6,7)
  • (13) the grip core of the right grip part made of hard plastic
  • (14) the coating of the handle part made of soft plastic
  • (15) Snap-connection elements on the handle core of the handle part, for fastening the handle part to the shaft (12)
  • (15a) Latches of the snap connection
  • (15b) counter-latch
  • (16) Pins on the handle core of the grip (7) provided for immersion in holes in the opposite handle part (6)
  • (17) the contact area
  • (22) Bore in the connection head (8b)
Fig. 7
a cross section through the handle according to Fig. 3 the line II.
In it are:
  • (12) the shaft of the base handle (5)
  • (6) the lower bulging left handle
  • (7) the more bulging right handle
  • (15a) Latches of the snap connection
  • (15b) counter-latch
  • (17) the congruent contact surfaces of the grip parts (6, 7)
Fig. 8
an open half shell (5b) of the base handle with an attached handle part.
In it are:
  • (5b) the half shell of the base grip
  • (7) a handle part
  • (12) the shaft of the base handle
  • (16) Centering pins
  • (19, 19a) Hinge elements
  • (20) the hinge pen
  • (21) Guide elements for the hinge pin
Fig. 9
a cross section through the handle along a line II-II in Fig. 3
In it are:
  • (5a, 5b) the two half-shells of the base handle
  • (6, 7) two handle parts
  • (12) the shaft of the base handle
  • (19, 19a) Hinge elements
  • (20) the hinge pin
  • (21) Guide elements for the hinge pin

Wie in Fig. 1 erkennbar, ist die rechte, nicht erfindungsgemäße Griffseite (1) stärker ausgewölbt als die linke Griffseite (2). Der Griff mit dieser Kontur ist für Rechtshänder ausgelegt.As in Fig. 1 recognizable, the right, not inventive handle side (1) is more bulged than the left handle side (2). The handle with this contour is designed for right-handed people.

In Fig. 2 ist die linke, nicht erfindungsgemäße Griffseite (3) stärker ausgewölbt als die rechte Griffseite (4). Der Griff mit dieser Kontur ist für Linkshänder ausgelegt.In Fig. 2 is the left, not inventive handle side (3) bulged more than the right handle side (4). The handle with this contour is designed for left-handers.

Wie in Fig. 3 erkennbar, ist der Basisgriff (5), in dem das Sägeblatt befestigt wird, in dem Bereich, in dem die Hand den Griff umgreift, nicht einstückig ausgeführt. Hier sind Griffteile (6, 7) an einem Schaft (12) befestigt, wobei das Griffteil (7) an der nicht sichtbaren Seite des Griffes befestigt ist, der einstückig Teil des Basisgriffes (5) ist. Der Schaft (12) ist, als verdecktes Teil, in dieser Darstellung gestrichelt gezeichnet.As in Fig. 3 recognizable, the base handle (5), in which the saw blade is attached, in the area in which the hand engages around the handle, not designed in one piece. Here are handle parts (6, 7) attached to a shaft (12), wherein the handle part (7) is attached to the non-visible side of the handle, which is integrally part of the base handle (5). The shaft (12) is, as a hidden part, drawn in dashed lines in this illustration.

In den Fig. 4a bis 4c sind die verschiedenen Montage-Stellungen der Griffteile (6,7) dargestellt und zur weiteren Erläuterung ein Achsenkreuz X-Y-Z eingezeichnet. Die Y-Achse ist die Längsachse, senkrecht zu ihr steht die Z-Achse, in der Ebene der Berührungsflächen und durch den Mittelpunkt der Länge der Griffteile (6,7) verlaufend, die X-Achse steht senkrecht auf der Ebene der Berührungsflächen und verläuft ebenfalls durch den Mittelpunkt der Länge der Griffteile.In the Fig. 4a to 4c the various mounting positions of the handle parts (6,7) are shown and drawn to further explain an Axis XYZ. The Y-axis is the longitudinal axis, perpendicular to it is the Z-axis, in the plane of the contact surfaces and extending through the mid-point of the length of the handle parts (6,7), the X-axis is perpendicular to the plane of the contact surfaces and extends also through the center of the length of the handle parts.

In Fig. 4a sind beide Griffteile (6, 7) erkennbar, die den Schaft (12) umschließen und zwischen den Anschlußköpfen (8a, 8b) des Basisgriffes (5), bestehend aus zwei Halbschalen (5a, 5b), eingepaßt sind. Beim Arbeiten wird die von der Hand ausgehende Schub- beziehungsweise Zugkraft über die Griffteile (6, 7) auf den Schaft (12) und den Basisgriff (5) in das Sägeblatt eingeleitet. In Fig. 4a sind die Griffteile (6, 7) für Rechtshänder montiert. Die kongruenten Berührungsflächen (17) der Griffteile liegen in der Y-Z-Ebene aneinander an. Die Konturen der Berührungsflächen sind in gleicher Weise dem Y-Z-Achsenkreuz zugeordnet.
Um einen Griff, bei dem die Griffteile (6, 7) für Rechtshänder montiert waren, für Linkshänder herzurichten, wie der Griff Fig. 4b zeigt, werden die Griffteile (6, 7) vom Schaft (12) des Basisgriffes (5) gelöst, um 180° um die Achse x - x sowie um die Längsachse y-y der Griffteile gedreht beziehungsweise um 180° um die Z-Achse, wie in Fig. 4c dargestellt, so dass die Berührungsflächen wieder einander zugekehrt sind, und auf der jeweils anderen Seite des Schaftes (12) befestigt. Da die Berührungsflächen (17) der Griffteile (6, 7) kongruent sind, entsteht durch die Ummontage ein zur ursprünglichen Stellung spiegelbildlich gestalteter Griff. Dazu sind auch die Elemente einer Schnappverbindung, einer scharnierartigen Verbindung oder einer Schraubverbindung und die Verzapfungen der Griffteile so ausgelegt und angeordnet, dass die spiegelbildliche Montage möglich ist.In Fig. 4a Both handle parts (6, 7) are visible, which enclose the shaft (12) and between the connection heads (8a, 8b) of the base handle (5), consisting of two half-shells (5a, 5b), are fitted. When working outgoing from the hand pushing or pulling force on the handle parts (6, 7) on the shaft (12) and the base handle (5) is introduced into the saw blade. In Fig. 4a The handle parts (6, 7) are mounted for right-handed people. The congruent contact surfaces (17) of the handle parts abut each other in the YZ plane. The contours of the contact surfaces are assigned to the YZ- axis cross in the same way.
To make a handle in which the handle parts (6, 7) were mounted for right-handers, as the handle Fig. 4b shows, the handle parts (6, 7) from the shaft (12) of the base handle (5) is released, rotated 180 ° about the axis x - x and about the longitudinal axis yy of the handle parts or 180 ° about the Z axis, such as in Fig. 4c shown so that the contact surfaces are facing each other again, and on the other side of the shaft (12) attached. Since the contact surfaces (17) of the handle parts (6, 7) are congruent, created by the Ummontage a mirrored to the original position handle. For this purpose, the elements of a snap connection, a hinge-like connection or a screw connection and the taps of the handle parts are designed and arranged so that the mirror image mounting is possible.

In gleicher Weise kann der Aufbau eines Griffes beispielsweise für eine Maurerkelle ausgeführt sein. Hier sind die beiden unterschiedlich ausgewölbten Griffteile (10, 11) an dem Basisgriff (9) befestigt.In the same way, the structure of a handle can be designed, for example, for a trowel. Here are the two differently curved handle parts (10, 11) attached to the base handle (9).

Fig. 6 zeigt eine offene Halbschale (5b) des Basisgriffes (5). Die beiden Halbschalen werden zusammen mit dem Sägeblatt im vorderen Bereich verschraubt. Da dies nicht Gegenstand der Anmeldung ist, wird hierauf nicht weiter eingegangen. Der Schaft (12) des zusammengesetzten Basisgriffes (5) ist im Querschnitt vorzugsweise rechteckig und hohl ausgebildet. An den zwei Griffschalen (5a, 5b) des Basisgriffes ist jeweils eine Hälfte des Schaftes (12) als U-förmiges Profilteil angeformt. Fig. 6 shows an open half-shell (5b) of the base handle (5). The two half shells are bolted together with the saw blade in the front area. Since this is not the subject of the application, this will not be discussed further. The shaft (12) of the composite base handle (5) is preferably rectangular in cross-section and hollow. On the two handles (5a, 5b) of the base handle one half of the shaft (12) is formed as a U-shaped profile part in each case.

Das Griffteil (7) ist zwischen den Anschlußköpfen (8a, 8b) spielfrei eingepaßt und umschließt mit seinem Griffkern (13) ebenfalls spielfrei den Schaft (12b). Zur Verstärkung der Verbindung von Basisgriff (5b) und Griffteil (7) sind an den Anschtußköpfen (8a, 8b) an der Übergangsstelle zum Schaft vorzugsweise zylindrische oder rechteckige Ansätze (18) angeformt. Diese Ansätze tauchen in entsprechende Ausnehmungen in den Griffkernen (13) des Griffteiles (7) ein. Die Schnappverbindung (15) des Griffteiles (7) mit dem Schaft (12) ist in der Weise ausgebildet, daß an den Griffkernen (13) klinkenartig ausgebildete federnde Ansätze (15a) angeformt sind. Die an deren Ende ausgebildeten Klinkenhaken greifen durch die an den betreffenden Stellen durchbrochene Wandung der Schafthälfte (12b) und rasten hinter einer Gegenklinke (15b) ein, die ihrerseits an der Innenseite der Schafthälfte (12b) angeformt ist. In den Basisgriff (5) sind an den Oberflächen der Anschlußköpfe (8a, 8b) Bohrungen (22) eingeformt. Durch diese Bohrungen kann zum Beispiel die Klinge eines Kreuzschlitzschraubendrehers eingeführt werden. Mit deren Spitze unter die überstehenden Vorderteile der Klinkenhaken, welche von dem Griffteil (7) ausgehen, greifend können die Klinkenhaken angehoben und die Schnappverbindung gelöst werden. In der Praxis genügt ein axialer Druck auf den Schraubendreher, dessen Kegelspitze zwischen den Vorderteilen der Klinkenhaken zentriert wird, um das Auslösen der Klinkenhaken zu bewirken. An den Griffkem (13) des Griffteiles (7) sind weiterhin Zentrier-Zapfen (16) angeformt, die in Bohrungen im gegenüberstehenden Griffkern des Griffteiles (6) eingreifen und die Verbindung der beiden Teile verstärken. Die Berührungsfläche (17) wird durch die Oberfläche des Griffkernes (13) und der Beschichtung (14) gebildet. Die nicht dargestellte zweite Halbschale (5a) ist im wesentlichen spiegelbildlich zur Halbschale (5b) gestaltet. Die an den federnden Ansätzen ausgebildeten Klinkenhaken greifen neben den Klinkenhaken (15a) des Griffteiles (7) über eine Gegenklinke, die an der Schafthälfte (12a) angebracht ist. Weiterhin weist das Griffteil (6) Bohrungen auf, in die die Zapfen (16) eintauchen.The grip part (7) is fitted without play between the connection heads (8a, 8b) and, with its grip core (13), also surrounds the shaft (12b) without play. To reinforce the connection of the base handle (5b) and the handle part (7), cylindrical or rectangular projections (18) are preferably integrally formed on the connecting heads (8a, 8b) at the transition point to the shaft. These approaches dip into corresponding recesses in the grip cores (13) of the handle part (7). The snap connection (15) of the handle part (7) with the shaft (12) is formed in such a way that on the handle cores (13) latch-like resilient projections (15a) are integrally formed. The latch hooks formed at the end thereof engage through the wall of the shaft half (12b) which is open at the points concerned and engage behind a counter pawl (15b), which in turn is integrally formed on the inside of the shaft half (12b). In the base handle (5) holes (22) are formed on the surfaces of the connection heads (8a, 8b). Through these holes, for example, the blade of a Phillips screwdriver can be introduced. With their tip under the protruding front parts of the pawl hooks, which emanate from the handle part (7), cross the latch hooks can be raised and the snap connection can be solved. In practice, an axial pressure is sufficient on the screwdriver, the apex of which is centered between the front parts of the pawl hooks to effect the release of the pawl hooks. On the handle core (13) of the handle part (7) centering pin (16) are further formed, which engage in holes in the opposite handle core of the handle part (6) and strengthen the connection of the two parts. The contact surface (17) is formed by the surface of the handle core (13) and the coating (14). The second half-shell (5a), which is not shown, is designed substantially mirror-inverted to the half-shell (5b). The latch hooks formed on the resilient lugs engage next to the pawl hooks (15a) of the grip part (7) via a counterpaw which is attached to the shaft half (12a). Furthermore, the grip part (6) has holes into which the pins (16) dip.

Die Halbschalen (5a, 5b) des Basisgriffes (5) sind in der Produktionsausführung durch Verrippung versteift. Die Griffkerne (13) können als vollwandige Teile gefertigt sein, aber auch auf der Anlageseite zum Schaft (12) hin teilweise hohl ausgebildet und durch Verrippungen versteift sein und mit den Rippen am Schaft (12) anliegen. Das Griffteil (7) ist in Fig. 6 so dargestellt, daß es aus dem Griffkern (13) und der Beschichtung (14) mit dem Weichkunststoff besteht. Es kann aber auch aus nur einem Kunststoff einstückig hergestellt sein, ebenso wie das Griffteil (6).The half-shells (5a, 5b) of the base handle (5) are stiffened in the production version by ribbing. The grip cores (13) can be made as solid-walled parts, but also on the contact side to the shaft (12) formed partially hollow and stiffened by ribbing and rest with the ribs on the shaft (12). The grip part (7) is in Fig. 6 shown as consisting of the handle core (13) and the coating (14) with the soft plastic. But it can also be made in one piece from only one plastic, as well as the handle part (6).

Die Fig. 7 zeigt einen vergrößerten Querschnitt durch den Griff im Bereich der Schnappverbindung, entlang der Linie I-I in Fig. 6. Darin ist zu erkennen, wie die Klinken (15a) über die Gegenklinken (15b) greifen und auf diese Weise die Griffteile (6,7) am Schaft (12) befestigen. Statt einer Schnappverbindung (15) wie dargestellt, können auch zwei oder mehr Schnappverbindungen angeordnet sein. Die in den Figuren 6 und 7 dargestellte Verbindung der Griffteile (6, 7) mit dem Schaft (12) setzt voraus, daß die Halbschalen (5a, 5b) in dem Bereich des Schaftes (12) durch Verkleben oder Verschweißen fest verbunden sind. Bei einer alternativen Ausführung kann die Verbindung der Halbschalen (5a, 5b) dadurch erreicht werden, daß die federnden Ansätze (15a) verlängert werden und die Gegenklinken (15b) nicht an der Schafthälfte angebracht sind, auf die das jeweilige Griffteil aufgesetzt wird, sondern an der gegenüberliegenden Schafthälfte. Die am Griffteil (7) angeformten Klinkenhaken schnappen also hinter einer Gegenklinke ein, die an der Schafthälfte (12a) angeformt sind, und, umgekehrt, die am Griffteil (6) angeformten Klinkenhaken hinter eine Gegenklinke, die an der Schafthälfte (12b) angeformt ist.The Fig. 7 shows an enlarged cross section through the handle in the region of the snap connection, along the line II in FIG Fig. 6 , It can be seen how the pawls (15a) on the counter pawls (15b) engage and secure in this way the handle parts (6,7) on the shaft (12). Instead of a snap connection (15) as shown, two or more snap connections can also be arranged. The in the FIGS. 6 and 7 shown connection of the handle parts (6, 7) with the shaft (12) requires that the half-shells (5a, 5b) in the region of the shaft (12) are firmly connected by gluing or welding. In an alternative embodiment, the connection of the half shells (5a, 5b) can be achieved in that the resilient lugs (15a) are extended and the counter pawls (15b) are not attached to the shaft half to which the respective handle part is placed, but on the opposite half of the shaft. The latch hooks integrally formed on the grip part (7) thus engage behind a counterpawl which is integrally formed on the shaft half (12a) and, conversely, the latch hooks formed on the grip part (6) behind a counterpaw formed on the shaft half (12b) ,

Fig. 8 und 9 zeigen eine Ausführungsvariante, bei der die Verbindung der Griffteile (6, 7) mit dem Schaft (12) nicht durch einen oder mehrere Schnappverbindungen erfolgt, sondern durch eine scharnierartige Gestaltung der Verbindung. Dabei sind mehrere Scharnier-Elemente (19) in Form von Ansätzen an die Griffteile (6, 7) angeformt. Diese Elemente ragen durch Durchbrechungen in der Wandung des Schaftes (12) in den Hohlraum des Schaftes. Die Scharnier Element (19) der sich gegenüberliegenden Griffteile (6, 7) stehen im Hohlraum des Schaftes (12) nebeneinander. Sie sind so angeordnet, dass nach Drehung um 180° um die z-Achse die Scharnier-Elemente (19) auf der jeweils anderen Seite des Schaftes (12) wieder in die Durchbrechungen im Schaft passen. Die Enden der Scharnier-Elemente weisen Bohrungen auf, deren Mittelpunkte auf einer Achse II-II des Schaftes liegen. In die Anschlußköpfe (8a, 8b) des Halbschalen (5a, 5b) sind in Flucht der Achse II - II ebenfalls Bohrungen (22) und / oder Scharnier-Elemente (19a) mit Bohrungen eingeformt. Alle Bohrungen habe den gleichen Durchmesser. Durch diese Bohrungen wird als Befestigungselement ein Scharnierstift (20) gesteckt. Die Durchmesser des Scharnierstiftes und Bohrungen sind so zueinander toleriert, dass ein Schiebesitz des Stiftes erzielt wird. Auf diese Weise werden die beiden Griffteile (6, 7) und die Halbschalen (5a, 5b) des Basisgriffes (5) in diesem Bereich fest aber lösbar miteinander verbunden. Der Scharnierstift kann an einem Ende auch mit einem kurzem Gewinde und einem Schraubenkopf versehen sein, der in einen Anschlußkopf (8a oder 8b) eingelassen ist. Der Schraubenkopf weist ein Innenprofil, zum Beispiel ein Kreuzschlitzprofil auf, so dass der Scharnierstift mit einem dem Innenprofil entsprechenden Schraubendreher zunächst aus dem Gewindesitz herausgedreht und anschließend ganz aus seinem Sitz gezogen werden kann. Nach Umsetzen der Griffteile (6, 7) werden diese durch Einsetzen des Scharnierstiftes (20) wieder mit dem Schaft (12) beziehungsweise dem Basisgriff verbunden. Auch bei dieser Ausführung der Verbindung können die Griffteile (6, 7) als Einkomponenten-Teile aus einem Kunststoff gefertigt sein, einem harten oder einem elastischen Kunststoff, oder als Zwei-Komponentengriff mit einem harten Griffkern (13) und einer Beschichtung (14) aus Weichkunststoff. Fig. 8 and 9 show a variant in which the connection of the handle parts (6, 7) with the shaft (12) is not carried out by one or more snap connections, but by a hinge-like design of the compound. In this case, a plurality of hinge elements (19) in the form of lugs on the handle parts (6, 7) are integrally formed. These elements protrude through openings in the wall of the shaft (12) into the cavity of the shaft. The hinge element (19) of the opposite grip parts (6, 7) are in the cavity of the shaft (12) side by side. They are arranged so that after rotation by 180 ° about the z- axis, the hinge elements (19) on the other side of the shaft (12) again fit into the openings in the shaft. The ends of the hinge elements have holes whose centers lie on an axis II-II of the shaft. In the connection heads (8a, 8b) of the half-shells (5a, 5b) are in alignment with the axis II - II also bores (22) and / or hinge elements (19a) formed with holes. All holes have the same diameter. Through these holes, a hinge pin (20) is inserted as a fastener. The diameter of the hinge pin and holes are tolerated to each other so that a sliding fit of the pin is achieved. In this way, the two handle parts (6, 7) and the half-shells (5a, 5b) of the base handle (5) in this area firmly but detachably connected to each other. The hinge pin can also be provided at one end with a short thread and a screw head, which is inserted in a connection head (8a or 8b). The screw head has an internal profile, for example Phillips on, so that the hinge pin with a screwdriver corresponding to the inner profile can first be unscrewed from the threaded seat and then completely pulled out of his seat. After reacting the handle parts (6, 7) they are connected by inserting the hinge pin (20) again with the shaft (12) or the base handle. Also in this embodiment of the compound, the handle parts (6, 7) can be made of a plastic as one-component parts, a hard or an elastic plastic, or as a two-component handle with a hard grip core (13) and a coating (14) soft plastic.

Außer durch eine Schnappverbindung oder Schamierverbindung können in einer Ausführungsvariante die Griffteile (6, 7) auch durch Schrauben mit dem Schaft (12) beziehungsweise dem Basisgriff (5) verbunden sein.
Die Schrauben sind zweckmäßigerweise seitlich in ein erstes Griffteil (6 oder 7) eingesetzt, durch Bohrungen im Schaft (12) hindurchgesteckt und in das zweite Griffteil eingeschraubt, so daß die Griffteile (6, 7) gegeneinander und mit dem Schaft (12) verspannt sind.Apart from a snap connection or a hinge connection, in one embodiment variant, the grip parts (6, 7) can also be connected by screws to the shaft (12) or the base grip (5).
The screws are expediently inserted laterally into a first grip part (6 or 7), inserted through holes in the shaft (12) and screwed into the second grip part, so that the grip parts (6, 7) are braced against each other and with the shaft (12) ,

Das erfindungsgemäße Griffsystem ist auch für andere Griffe beziehungsweise Werkzeuge als die beispielhaft dargestellten Werkzeuge verwendbar. Griffe dieser Ausführungsart können beispielsweise auch bei Hämmern, Meißeln, großen Messern. Hand-Gartengeräten oder Steuerhebeln zur Anwendung kommen.
Dabei können die Schäfte in ihrer Form, den Abmessungen, dem Querschnittsprofil, ihrer Erstreckung in Längsrichtung sowie die Abmessungen der Anschlußbereiche und die Befestigungselemente an den Griffteile und am Schaft anders ausgebildet sein als bei den in den Figuren und der Beschreibung dargestellten Beispielen, solange der Schutzbereich des Patentes nicht verlassen wird.
Der Schaft kann aus Kunststoff, Metall oder Holz bestehen, die Griffteile aus Kunststoff oder Holz.The grip system according to the invention can also be used for other handles or tools than the tools shown by way of example. Handles of this embodiment can also be used, for example, in hammers, chisels, large knives. Hand gardening tools or control levers are used.
In this case, the shanks in their shape, the dimensions, the cross-sectional profile, their extension in the longitudinal direction and the dimensions of the terminal regions and the fastening elements on the handle parts and the shaft can be designed differently than in the examples and the description shown in the examples, as long as the scope of the patent is not left.
The shaft can be made of plastic, metal or wood, the handle parts made of plastic or wood.

Claims (3)

  1. Handle set for at least one hand tool or gardening tool for providing a handle adapted for being mounted with a shaft (12) of a basic handle (5) wherein the handle is adapted for being prepared for a right-handed person and a left-handed person and the handle includes two handle parts (6, 7) having surfaces with different curvatures wherein the handle parts contact each other with congruent contact surfaces (17) and have abutting or adjacent regions with steady outer contours, characterised by the outer contours of the handle parts (6, 7) being with their longitudinal extension symmetrically in respect of a X-Z-plane in a theoretical Cartesian coordinate system, the Y-axis (y-y) of the coordinate system coinciding with the longitudinal axis of the handle parts, the X-axis (x-x) being perpendicular to the plane of the contact surfaces of the handle parts and running through the center point of the length of the handle parts (6, 7) and the Z-axis lying in the Y-Z-plane of the contact surfaces of the handle parts and also running through the center point of the length of the handle parts, wherein the handle parts are connected with the basic handle my means of fixation elements for a releasable and re-establishable connection and a handle adapted for use of a right-handed person is changed for use of a left-handed person by separating the handle parts (6, 7) from shaft (12), rotating the handle parts (6, 7) around the transverse axis (x-x) by an angle of 180° and rotating the handle parts (6, 7) around the longitudinal axis (y-y) by an angle of 180° or around the Z-axis by an angle of 180° and attaching the handle parts again on the other side of the shaft wherein the contact areas (17) face each other.
  2. Handle set according to claim 1, wherein the fixation elements are hinge elements wherein first hinge elements (19) are formed as protrusions of the handle parts (6, 7) extending from both sides through openings of the shaft (12) into a hollow chamber of the shaft and wherein the first hinge elements have bores of same diameters at their ends, the midpoints lying on an axis II-II of shaft (12), and wherein coupling heads (8a, 8b) comprise corresponding bores and wherein a second hinge element is built by a hinge pin (20) which is movable in an axial direction and which is pinned through all the bores connecting the handle parts (6, 7) with shaft (12).
  3. Handle set according to claim 1, wherein the fixation elements are snapping elements formed integrally by the handle parts (6, 7) and interlocking with positive engagement with corresponding fixation elements (15b) being moulded with the shaft halves (12a, 12b) or on the opposing handle part, wherein the snapping elements is designed for being released by a screwdriver acting in axial direction.
EP04029119A 2003-12-09 2004-12-08 Handle set for hand or garden tools Not-in-force EP1541294B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07023752A EP1892063A3 (en) 2003-12-09 2004-12-08 Handle for hand and garden tools

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20319150U 2003-12-09
DE20319150 2003-12-09
DE202004000140U DE202004000140U1 (en) 2003-12-09 2004-01-07 Handle set for hand tools and gardening tools has two separate handle parts with continuous surface contour in bounding region, congruent contact surfaces formed symmetrically with respect to longitudinal axis and to the transverse axes
DE202004000140U 2004-01-07

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07023752A Division EP1892063A3 (en) 2003-12-09 2004-12-08 Handle for hand and garden tools

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EP1541294A1 EP1541294A1 (en) 2005-06-15
EP1541294B1 true EP1541294B1 (en) 2008-03-05

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AT (1) ATE387991T1 (en)
DE (1) DE502004006397D1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017188B3 (en) * 2005-04-13 2006-09-07 Felo-Werkzeugfabrik Holland-Letz Gmbh Handle e.g. for hand and garden tools, has inner handle piece and outer handle piece, optionally arranged for right-handed or left-handed person and outer handle piece has surface contour is asymmetrical in X- and Y-axis
EP2422945B1 (en) * 2009-05-11 2016-12-14 Husqvarna AB Chainsaw arrangement
ES2620689T3 (en) 2009-05-11 2017-06-29 Husqvarna Ab Chainsaw configuration
EP3385036A1 (en) * 2017-04-06 2018-10-10 K&W Tools Co., Ltd. Grip structure for left-handed and right-handed users

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218723C2 (en) * 1991-10-22 1994-05-26 Wuesthof Dreizackwerk E Handle for a cutting tool
CH685809A5 (en) * 1992-08-14 1995-10-13 Christian Roux Handle.
US5829099A (en) * 1997-04-14 1998-11-03 Kopelman; Larry J. Universal ergonomic handle
US6105259A (en) * 1998-10-22 2000-08-22 Gerber Products Company Eating utensils
DE19902882C2 (en) * 1999-01-25 2002-06-20 Holland Letz Felo Werkzeug Handles for tools and processes for their manufacture
US6247204B1 (en) * 1999-09-15 2001-06-19 Mike Hamby Handle for trowel and related tools
DE10042859C2 (en) * 2000-08-30 2002-07-11 Holland Letz Felo Werkzeug Handle set for a hand or garden tool

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ATE387991T1 (en) 2008-03-15
EP1541294A1 (en) 2005-06-15
DE502004006397D1 (en) 2008-04-17

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