EP3331665A1 - Side handle - Google Patents

Side handle

Info

Publication number
EP3331665A1
EP3331665A1 EP16744724.2A EP16744724A EP3331665A1 EP 3331665 A1 EP3331665 A1 EP 3331665A1 EP 16744724 A EP16744724 A EP 16744724A EP 3331665 A1 EP3331665 A1 EP 3331665A1
Authority
EP
European Patent Office
Prior art keywords
handle
axis
leaf spring
along
handle 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.)
Granted
Application number
EP16744724.2A
Other languages
German (de)
French (fr)
Other versions
EP3331665B1 (en
Inventor
Adrian Steingruber
Oliver Ohlendorf
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.)
Hilti AG
Original Assignee
Hilti AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hilti AG filed Critical Hilti AG
Publication of EP3331665A1 publication Critical patent/EP3331665A1/en
Application granted granted Critical
Publication of EP3331665B1 publication Critical patent/EP3331665B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/01—Shock-absorbing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing

Definitions

  • the present invention relates to a side handle for a hand tool.
  • a side handle is known from EP 1674216 B1.
  • the side handle has a handle bar and a mounting mechanism.
  • the handlebar is connected by the attachment mechanism through a leaf spring bent into a ring.
  • the side handle for a hand tool has a handle bar disposed along a handle axis for holding the side handle with one hand, a mounting mechanism, and a damper.
  • the attachment mechanism for releasably securing the side handle to the power tool has a tensioning strap encompassing a mounting axis and a tensioning mechanism.
  • the clamping mechanism has a with the clamping band along the handle axis overlapping and relative to the clamping band along the handle axis displaceable collar, an anchored to the strap, along the handle axis sliding tie rod and rotatable about the handle axis and engaging in an external thread of the tie rod tensioning wheel.
  • the damper connects the handle bar with the attachment mechanism.
  • the damper has at least one inclined to the mounting axis oriented longitudinal side of a leaf spring, wherein the leaf spring has a slot extending along the handle axis.
  • a split pin is attached to the pull rod and engages in the slot of the leaf spring.
  • the sapwood of the tie rod secures the orientation of the leaf spring relative to the mounting axis, without affecting the damping behavior or affect a simple tool-free attachment with the tensioning wheel.
  • leaf spring is oriented perpendicular to the mounting axis; the split pin can be oriented longitudinally or parallel to the attachment axis.
  • the damper has a securing cage fixed to the handle bar, in which the leaf spring is arranged, wherein the cage has a along the handle axis extending slot, in which the split pin engages.
  • the safety cage protects the user in the event of a breakage of the leaf spring, as the handle bar is still connected to the attachment mechanism via the split pin and pull rod.
  • the safety cage may, in one embodiment, have an inclined inner surface whose distance to the longitudinal side of the leaf spring increases in the direction from the handlebar to the attachment mechanism. Further or alternatively, the tensioning wheel may have a protruding towards the handle bar hem which overlaps along the handle axis with the safety cage. The seam has a distance from the safety cage in the radial direction toward the handle axis.
  • the embodiments limit a deflection of the leaf spring to avoid overloading without affecting the damping behavior of the leaf spring at a lower deflection.
  • An embodiment provides that the leaf spring has two longitudinal sides parallel to one another, which are connected to one another via transverse sides extending perpendicular to the handle axis.
  • the leaf spring has by the shape of an inherently high mechanical stability, especially against torsional loads on.
  • One embodiment provides that one of the transverse sides of the leaf spring has a hole on the handle axis and the clamping wheel resting against the transverse side has a nut which has a neck guided through the hole and a head engaging behind the hole.
  • the structure allows attachment of the leaf spring with a small number of components.
  • FIG. 2 shows the side handle in a longitudinal section perpendicular to FIG. 2; Identical or functionally identical elements are indicated by the same reference numerals in the figures, unless stated otherwise.
  • Fig. 1 and Fig. 2 show an exemplary side handle 1 in two longitudinal sections.
  • the side handle 1 has a handle bar 2 and a fixing mechanism 3, which is arranged on one side, at a proximal end 4 of the handle bar 2.
  • the attachment mechanism 3 allows the side handle 1 to be attached to and detached from a hand tool 5.
  • the user can grasp the handle bar 2 to hold and guide a hand tool in operation.
  • a damper 6 is arranged, which reduces transmission of vibrations of the power tool 5 on the handle bar 2.
  • the handle bar 2 is an elongate rod that can be grasped by the user with one hand.
  • the longitudinal axis of the rod is referred to below as Griffachse 7.
  • the handle bar 2 may have a handle portion whose diameter and length are preferably designed according to ergonomic aspects.
  • the exemplary handlebar 2 is rotationally symmetrical to the handle axis 7. As shown, the handle bar 2 can be bulbous or cylindrical or not symmetrical with a contour for the fingers.
  • the handle bar 2 may have a hollow, cylindrical base body 8 made of a hard plastic.
  • the main body 8 is preferably encapsulated with a jacket 9 made of a soft foam or elastomer.
  • the fastening mechanism 3 has a tension band 10 and a tensioning mechanism 11.
  • the tension band 10 is preferably a metal band bent into a loop, alternatively a textile band.
  • the tensioning band 10 aligns the side handle 1 on the handheld power tool 5 along a fastening axis 12.
  • the attachment axis 12 is defined by the eye 13 of the tension band 10.
  • the user can push the strap 10 on the housing of the power tool 5 along the mounting axis 12, typically the side handle 1 is aligned with its mounting axis 12 parallel to a working axis of the power tool 5, eg by placing the tension band 10 around a cylindrical portion near a tool holder.
  • the mounting axis 12 is located with the handle axis 7 in a plane; the attachment axis 12 is preferably perpendicular or at least more than 60 degrees to the handle axis 7 inclined.
  • the fastening mechanism 3 is offset from the handle bar 2 on the handle axis 7.
  • the lying on the handle axis 7 proximal end 4 of the handle bar 2 faces the attachment mechanism 3, a distal end 14 is remote from the attachment mechanism 3.
  • the terms proximal and distal are derived from the intended arrangement of the side handle 1 on the hand tool 5 from.
  • the proximal end 4 is the closer to the handle axis 7 of the hand tool 5 and the attachment axis 12 closer end and the distal end 14 corresponding to the farther end.
  • the handle bar 2 and the handle axis 7 are typically perpendicular from the housing of the power tool 5 from.
  • the exemplary tensioning mechanism 11 spreads a portion 15 of the tension band 10 from the housing, thereby clamping the remaining portion to the housing.
  • the tensioning mechanism 11 has a collar 16 which partially overlaps with the eye 13 of the tension band 10.
  • the strap 10 can be moved relative to the collar 16 along the handle axis 7, so the overlap of the collar 16 increases with the eye 13. The free opening of the eye 13 is reduced, whereby the clamping band 10 is clamped to the housing.
  • the collar 16 has a remote from the handle bar 2 support surface 17, which is formed by way of example circular arc.
  • the support surface 17 may be formed complementary to the contour of the housing of the power tool 5, but also be easily formed by one or more support struts, which create only selectively to the housing.
  • the exemplary collar 16 is cupped with two parallel arcuate support surfaces 17, between which there is a gap in the width of the tension band 10. The portion 15 of the tension band 10 extends partially between the support surfaces 17 in the gap.
  • the clamping mechanism 11 has a tensioning wheel 18 and a pull rod 19, which move a collar 15 near section 15 of the clamping band 10 relative to the collar 16.
  • the tensioning wheel 18 is rotatably mounted on the collar 16 about the handle axis 7.
  • the tensioning wheel 18 is supported along the handle axis 7 at least in the direction of the tensioning band 10, ie the support surface 17 of the collar 16, for example on a side 20 of the collar 16 facing the handlebar 2.
  • the tension rod 19 is arranged coaxially with the grip axis 7 and along this movable.
  • the pull rod 19 is anchored in the collar 16 near section 15 of the tension band 10.
  • the drawbar 19 can not rotate relative to the clamping band 10 around the handle axis 7.
  • the pull rod 19 is welded to the tension band 10.
  • a head 21 of the pull rod 19 is positively caught in the collar 16 and movable only along the handle axis 7.
  • the tension band 10 is also not rotatable relative to the collar 16 about the handle axis 7.
  • the drawbar 19 has a worm thread or a similar toothing, in which a nut 22 of the tensioning wheel 18 engages. The user can rotate the tensioning wheel 18 by hand and move the pull rod 19 along the handle axis 7. In this case, the section 15 is moved by the pull rod 19 relative to the collar 16, possibly its overlap with the collar 16 is increased in order to clamp the other portion of the tension band 10 on the housing of the power tool 5.
  • the handlebar 2 and the attachment mechanism 3 are interconnected by the intermediate damper 6.
  • the damper 6 allows a relative deflection of the handle bar 2 with respect to the fastening mechanism 3 along the mounting axis 12, however, the damper 6 exerts a force counteracting the deflection.
  • the damper 6 includes a leaf spring 23 oriented along the handle axis 7, whose distal portion 24 is fastened to the handle bar 2 and whose proximal portion 25 is attached to the attachment mechanism 3.
  • the exemplary damper 6 includes a leaf spring 23 bent into a ring.
  • the leaf spring 23 has two longitudinal sides 26 that are substantially parallel to the handle axis 7 and perpendicular to the mounting axis 12.
  • the two longitudinal sides 26 are connected by transversely extending substantially perpendicular to the handle axis 7 transverse sides 25, 24.
  • One of the transverse sides 24 forms the distal portion of the leaf spring 23 and may for example be cast into the handle bar 2 or bolted to the handle bar 2.
  • the other of the lateral sides 25 forms the proximal portion of the leaf spring 23 and is fixed to the attachment mechanism 3.
  • the proximal transverse side 25 is held along the handle axis 7 from one side by the tensioning wheel 18 and from the other side by a nut 22.
  • the proximal transverse side 25 has a lying on the handle axis 7 hole 27.
  • the pull rod 19 extends through the hole 27 and engages with its external thread in the internal thread of the nut 22 a.
  • the pull rod 19 connects the nut 22, the proximal transverse side 24 and thus the leaf spring 23, the tensioning wheel 18, the collar 16 and the strap 10 to a coherent unit.
  • the nut 22 has a head 28 and a neck 29.
  • the head has a larger diameter to the hole 27; the neck 29 has a diameter equal to the hole 27.
  • the head 28 abuts against the proximal transverse side 25; the neck 29 protrudes through the hole 27.
  • the tensioning wheel 18 is rotatably connected to the neck 29.
  • the neck 29 has a flat key surface or otherwise asymmetric to the handle axis 7 shape. The rotation of the tensioning wheel 18 is transmitted to the nut 22 and moves the pull rod 19 along the handle axis 7.
  • the longitudinal sides 26 of the leaf spring 23 are perpendicular to the mounting axis 12. Preferably, the longitudinal sides 26 are flat and parallel to each other.
  • the longitudinal sides 26 are each provided with a longitudinal axis of the handle 7 extending slot 30.
  • a split pin 31 engages in the two slots 30.
  • the splint 31 is also in the pull rod 19.
  • the split pin 31 prevents rotation of the damper 6 relative to the pull rod 19 to the handle axis 7. This ensures that the longitudinal sides 26 perpendicular to the mounting axis 12, along which a damping is to take place, oriented are.
  • the curved leaf spring 23 with two longitudinal sides 26 to the ring and other geometries of leaf springs can be used, provided that they have at least one perpendicular to the mounting axis 12 or inclined longitudinal side 26.
  • the leaf spring can be C-shaped, ie with a longitudinal side 26 and a distal transverse side 24 and a proximal transverse side 25. Further, the leaf spring can be folded several times to obtain more than two parallel longitudinal sides.
  • the damper 6 may have a safety cage 32.
  • the safety cage 32 is attached to the handle bar 2.
  • the exemplary safety cage 32 is a hollow cylinder or a hollow, blunt cone.
  • the safety cage 32 may be open on a side 20 facing the fastening mechanism 3.
  • the leaf spring 23 is disposed within the fuse cage 32.
  • the leaf spring 23 is spaced in the unloaded state of the inner surfaces 33 of the securing cage 32.
  • a distance of the inner surfaces 33 to the leaf spring 23 may increase along the handle axis 7 from the handle bar 2 to the attachment mechanism 3. If a deflection of the handlebar 2 with respect to the attachment mechanism 3 exceeds a critical deflection, the leaf spring 23 bears against the inner surface 33. The leaf spring 23 is thus protected against overstress along the mounting axis 12.
  • the tensioning wheel 18 may have a longitudinal edge 7 of the protruding seam 34 which overlaps along the handle axis 7 with the securing cage 32.
  • the seam 34 encloses the safety cage 32.
  • the seam 34 is radially, relative to the handle axis 7, spaced from the safety cage 32 so as not to influence the damping behavior of the damper 6.
  • the radial distance of the securing cage 32 to the seam 34 is selected such that upon excessive deflection of the handle bar 2 with respect to the fastening mechanism 3, the securing cage 32 abuts against the seam 34.
  • the leaf spring 23 is thus protected against overstress along the mounting axis 12.
  • the safety cage 32 has two grooves 35 or slots along the handle axis 7.
  • the grooves 35 are opposed to the slots 30 of the leaf spring 23.
  • the split pin 31 engages in the grooves 35.
  • the safety cage 32 secures the handle bar 2 to the pull rod 19 and the attachment mechanism 3, respectively, and protects the user from sudden and complete failure of the side handle 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

The side handle for a hand-operated power tool (5) has a handle rod (2) which is arranged along a handle axis (7) and intended for holding the side handle (1) by one hand, a fastening mechanism (3) and a damper (6). The fastening mechanism (3) for releasably fastening the side handle (1) to the hand-operated power tool (5) has a tensioning band (10), which engages around a fastening axis (12), and a tensioning mechanism (11). The tensioning mechanism (11) has a collar (16) which overlaps with the tensioning band (10) along the handle axis (7) and is displaceable with respect to the tensioning band (10) along the handle axis (7), a pull rod (19) which is anchored to the tensioning band (10) and is displaceable along the handle axis (7), and a tensioning wheel (18) which can be rotated about the handle axis (7) and engages in an external thread (36) of the pull rod (19). The damper (6) connects the handle rod (2) to the fastening mechanism (3). The damper (6) has at least one longitudinal side (26), which is oriented at an inclination to the fastening axis (12), of a leaf spring (23), wherein the leaf spring (23) has a slot (30) which extends along the handle axis (7). A splint (31) is fastened to the pull rod (19) and engages in the slot (30) in the leaf spring (23).

Description

Seitenhandgriff  Side handle
GEBIET DER ERFINDUNG FIELD OF THE INVENTION
Die vorliegende Erfindung betrifft einen Seitenhandgriff für eine Handwerkzeugmaschine. The present invention relates to a side handle for a hand tool.
Ein Seitenhandgriff ist aus EP 1674216 B1 bekannt. Der Seitenhandgriff weist eine Griffstange und einen Befestigungsmechanismus auf. Die Griffstange ist von dem Befestigungsmechanismus durch eine zu einem Ring gebogene Blattfeder angebunden. A side handle is known from EP 1674216 B1. The side handle has a handle bar and a mounting mechanism. The handlebar is connected by the attachment mechanism through a leaf spring bent into a ring.
OFFENBARUNG DER ERFINDUNG DISCLOSURE OF THE INVENTION
Der Seitenhandgriff für eine Handwerkzeugmaschine hat eine längs einer Griffachse angeordneten Griffstange zum Halten des Seitenhandgriffs mit einer Hand, einen Befestigungsmechanismus und einen Dämpfer. Der Befestigungsmechanismus zum lösbaren Befestigen des Seitenhandgriffs an der Handwerkzeugmaschine hat ein eine Befestigungsachse umgreifendes Spannband und einen Spannmechanismus. Der Spannmechanismus hat einen mit dem Spannband längs der Griffachse überlappenden und gegenüber dem Spannband längs der Griffachse verschiebbaren Kragen, eine an dem Spannband verankerte, längs der Griffachse verschiebbare Zugstange und ein um die Griffachse drehbares und in ein Außengewinde der Zugstange eingreifendes Spannrad. Der Dämpfer verbindet die Griffstange mit dem Befestigungsmechanismus. Der Dämpfer hat wenigstens eine zu Befestigungsachse geneigt orientierte Längsseite einer Blattfeder, wobei die Blattfeder einen längs der Griffachse verlaufenden Schlitz aufweist. Ein Splint ist an der Zugstange befestigt und greift in den Schlitz der Blattfeder ein. Der Splint der Zugstange sichert die Orientierung der Blattfeder gegenüber der Befestigungsachse, ohne das Dämpfverhalten zu beeinflussen oder eine einfache werkzeugfreie Befestigung mit dem Spannrad zu beeinträchtigen. The side handle for a hand tool has a handle bar disposed along a handle axis for holding the side handle with one hand, a mounting mechanism, and a damper. The attachment mechanism for releasably securing the side handle to the power tool has a tensioning strap encompassing a mounting axis and a tensioning mechanism. The clamping mechanism has a with the clamping band along the handle axis overlapping and relative to the clamping band along the handle axis displaceable collar, an anchored to the strap, along the handle axis sliding tie rod and rotatable about the handle axis and engaging in an external thread of the tie rod tensioning wheel. The damper connects the handle bar with the attachment mechanism. The damper has at least one inclined to the mounting axis oriented longitudinal side of a leaf spring, wherein the leaf spring has a slot extending along the handle axis. A split pin is attached to the pull rod and engages in the slot of the leaf spring. The sapwood of the tie rod secures the orientation of the leaf spring relative to the mounting axis, without affecting the damping behavior or affect a simple tool-free attachment with the tensioning wheel.
Eine Ausgestaltung sieht vor, dass die Blattfeder senkrecht zu der Befestigungsachse orientiert ist; der Splint kann längs oder parallel zu der Befestigungsachse orientiert sein. An embodiment provides that the leaf spring is oriented perpendicular to the mounting axis; the split pin can be oriented longitudinally or parallel to the attachment axis.
Eine Ausgestaltung sieht vor, dass der Dämpfer einen an der Griffstange befestigten Sicherungskäfig aufweist, in welchem die Blattfeder angeordnet ist, wobei der Käfig einen längs der Griffachse verlaufenden Schlitz aufweist, in welchen der Splint eingreift. Der Sicherungskäfig schützt den Anwender bei einem Bruch der Blattfeder, indem die Griffstange über den Splint und die Zugstange weiterhin mit dem Befestigungsmechanismus verbunden ist. One embodiment provides that the damper has a securing cage fixed to the handle bar, in which the leaf spring is arranged, wherein the cage has a along the handle axis extending slot, in which the split pin engages. The safety cage protects the user in the event of a breakage of the leaf spring, as the handle bar is still connected to the attachment mechanism via the split pin and pull rod.
Der Sicherungskäfig kann in einer Ausgestaltung eine geneigte Innenfläche aufweisen, deren Abstand zu der Längsseite der Blattfeder in Richtung von der Griffstange zu dem Befestigungsmechanismus zunimmt. Ferner oder alternativ kann das Spannrad einen in Richtung zu der Griffstange vorstehenden Saum aufweisen, welcher längs der Griffachse mit dem Sicherungskäfig überlappt. Der Saum weist in zu der Griffachse radialer Richtung einen Abstand zu dem Sicherungskäfig auf. Die Ausgestaltungen beschränken eine Auslenkung der Blattfeder, um eine Überlastung zu vermeiden, ohne das Dämpfverhalten der Blattfeder bei einer geringeren Auslenkung zu beeinflussen. Eine Ausgestaltung sieht vor, dass die Blattfeder zwei zueinander parallele Längsseiten aufweist, welche über senkrecht zu der Griffachse verlaufende Querseiten, miteinander verbunden sind. Die Blattfeder weist durch die Form eine inhärent hohe mechanische Stabilität, insbesondere gegenüber Torsionsbelastungen, auf. Eine Ausgestaltung sieht vor, dass eine der Querseiten der Blattfeder ein Loch auf der Griffachse aufweist und das an der Querseite anliegende Spannrad eine Mutter aufweist, die einen durch das Loch geführten Hals und einen das Loch hintergreifenden Kopf aufweist. Der Aufbau ermöglicht eine Befestigung der Blattfeder mit einer geringen Anzahl von Bauteilen. The safety cage may, in one embodiment, have an inclined inner surface whose distance to the longitudinal side of the leaf spring increases in the direction from the handlebar to the attachment mechanism. Further or alternatively, the tensioning wheel may have a protruding towards the handle bar hem which overlaps along the handle axis with the safety cage. The seam has a distance from the safety cage in the radial direction toward the handle axis. The embodiments limit a deflection of the leaf spring to avoid overloading without affecting the damping behavior of the leaf spring at a lower deflection. An embodiment provides that the leaf spring has two longitudinal sides parallel to one another, which are connected to one another via transverse sides extending perpendicular to the handle axis. The leaf spring has by the shape of an inherently high mechanical stability, especially against torsional loads on. One embodiment provides that one of the transverse sides of the leaf spring has a hole on the handle axis and the clamping wheel resting against the transverse side has a nut which has a neck guided through the hole and a head engaging behind the hole. The structure allows attachment of the leaf spring with a small number of components.
KURZE BESCHREIBUNG DER FIGUREN BRIEF DESCRIPTION OF THE FIGURES
Die nachfolgende Beschreibung erläutert die Erfindung anhand von exemplarischen Ausführungsformen und Figuren. The following description explains the invention with reference to exemplary embodiments and figures.
In den Figuren zeigen: einen Seitenhandgriff in einem Längsschnitt; und Fig. 2 den Seitenhandgriff in einem Längsschnitt senkrecht zu Fig. 2; Gleiche oder funktionsgleiche Elemente werden durch gleiche Bezugszeichen in den Figuren indiziert, soweit nicht anders angegeben. In the figures show: a side handle in a longitudinal section; and FIG. 2 shows the side handle in a longitudinal section perpendicular to FIG. 2; Identical or functionally identical elements are indicated by the same reference numerals in the figures, unless stated otherwise.
AUSFÜHRUNGSFORMEN DER ERFINDUNG EMBODIMENTS OF THE INVENTION
Fig. 1 und Fig. 2 zeigen einen beispielhaften Seitenhandgriff 1 in zwei Längsschnitten. Der Seitenhandgriff 1 hat eine Griffstange 2 und einen Befestigungsmechanismus 3, der einseitig, an einem proximalen Ende 4 der Griffstange 2 angeordnet ist. Der Befestigungsmechanismus 3 ermöglicht den Seitenhandgriff 1 an einer Handwerkzeugmaschine 5 zu befestigen und von dieser zu lösen. Der Anwender kann die Griffstange 2 greifen, um eine Handwerkzeugmaschine im Betrieb zu halten und zu führen. Zwischen der Griffstange 2 und dem Befestigungsmechanismus 3 ist ein Dämpfer 6 angeordnet, welcher ein Übertragen von Vibrationen der Handwerkzeugmaschine 5 auf die Griffstange 2 mindert. Fig. 1 and Fig. 2 show an exemplary side handle 1 in two longitudinal sections. The side handle 1 has a handle bar 2 and a fixing mechanism 3, which is arranged on one side, at a proximal end 4 of the handle bar 2. The attachment mechanism 3 allows the side handle 1 to be attached to and detached from a hand tool 5. The user can grasp the handle bar 2 to hold and guide a hand tool in operation. Between the handle bar 2 and the fixing mechanism 3, a damper 6 is arranged, which reduces transmission of vibrations of the power tool 5 on the handle bar 2.
Die Griffstange 2 ist ein länglicher Stab, der von dem Anwender mit einer Hand umgriffen werden kann. Die Längsachse des Stabs wird nachfolgend als Griffachse 7 bezeichnet. Die Griffstange 2 kann einen Griffabschnitt aufweisen, dessen Durchmesser und Länge vorzugsweise nach ergonomischen Gesichtspunkten ausgelegt sind. Die beispielhafte Griffstange 2 ist zu der Griffachse 7 rotationssymmetrisch. Die Griffstange 2 kann wie dargestellt bauchig oder zylindrisch oder nicht symmetrisch mit einer Kontur für die Finger ausgebildet sein. Die Griffstange 2 kann einen hohlen, zylindrischen Grundkörper 8 aus einem harten Kunststoff aufweisen. Der Grundkörper 8 ist vorzugsweise mit einem Mantel 9 aus einem weichen Schaumstoff oder Elastomer umspritzt. The handle bar 2 is an elongate rod that can be grasped by the user with one hand. The longitudinal axis of the rod is referred to below as Griffachse 7. The handle bar 2 may have a handle portion whose diameter and length are preferably designed according to ergonomic aspects. The exemplary handlebar 2 is rotationally symmetrical to the handle axis 7. As shown, the handle bar 2 can be bulbous or cylindrical or not symmetrical with a contour for the fingers. The handle bar 2 may have a hollow, cylindrical base body 8 made of a hard plastic. The main body 8 is preferably encapsulated with a jacket 9 made of a soft foam or elastomer.
Der Befestigungsmechanismus 3 hat ein Spannband 10 und einen Spannmechanismus 11. Das Spannband 10 ist vorzugsweise ein zu einer Schlaufe gebogenes Metallband, alternativ ein Textilstreifen. Das Spannband 10 richtet den Seitenhandgriff 1 an der Handwerkzeugmaschine 5 entlang einer Befestigungsachse 12 aus. Die Befestigungsachse 12 ist durch das Auge 13 des Spannbands 10 definiert. Die Befestigungsachse 12 verläuft senkrecht, durch die Mitte des Auges 13. Der Anwender kann das Spannband 10 auf das Gehäuse der Handwerkzeugmaschine 5 längs der Befestigungsachse 12 aufschieben, typischerweise wird der Seitenhandgriff 1 mit seiner Befestigungsachse 12 parallel zu einer Arbeitsachse der Handwerkzeugmaschine 5 ausgerichtet, z.B. indem das Spannband 10 um einen zylindrischen Abschnitt nahe eines Werkzeughalter aufgesetzt wird. Die Befestigungsachse 12 liegt mit der Griffachse 7 in einer Ebene; die Befestigungsachse 12 ist vorzugsweise senkrecht oder zumindest um mehr als 60 Grad gegenüber der Griffachse 7 geneigt. Der Befestigungsmechanismus 3 liegt versetzt zu der Griffstange 2 auf der Griffachse 7. Das auf der Griffachse 7 liegende proximale Ende 4 der Griffstange 2 weist zu dem Befestigungsmechanismus 3, ein distales Ende 14 ist von dem Befestigungsmechanismus 3 abgewandt. Die Bezeichnungen proximal und distal leiten sich aus der vorgesehenen Anordnung des Seitenhandgriffs 1 an der Handwerkzeugmaschine 5 ab. Das proximale Ende 4 ist das längs der Griffachse 7 der Handwerkzeugmaschine 5 bzw. der Befestigungsachse 12 nähere Ende und das distale Ende 14 entsprechend das weiter entfernte Ende. Die Griffstange 2 und die Griffachse 7 stehen typischerweise senkrecht von dem Gehäuse der Handwerkzeugmaschine 5 ab. The fastening mechanism 3 has a tension band 10 and a tensioning mechanism 11. The tension band 10 is preferably a metal band bent into a loop, alternatively a textile band. The tensioning band 10 aligns the side handle 1 on the handheld power tool 5 along a fastening axis 12. The attachment axis 12 is defined by the eye 13 of the tension band 10. The user can push the strap 10 on the housing of the power tool 5 along the mounting axis 12, typically the side handle 1 is aligned with its mounting axis 12 parallel to a working axis of the power tool 5, eg by placing the tension band 10 around a cylindrical portion near a tool holder. The mounting axis 12 is located with the handle axis 7 in a plane; the attachment axis 12 is preferably perpendicular or at least more than 60 degrees to the handle axis 7 inclined. The fastening mechanism 3 is offset from the handle bar 2 on the handle axis 7. The lying on the handle axis 7 proximal end 4 of the handle bar 2 faces the attachment mechanism 3, a distal end 14 is remote from the attachment mechanism 3. The terms proximal and distal are derived from the intended arrangement of the side handle 1 on the hand tool 5 from. The proximal end 4 is the closer to the handle axis 7 of the hand tool 5 and the attachment axis 12 closer end and the distal end 14 corresponding to the farther end. The handle bar 2 and the handle axis 7 are typically perpendicular from the housing of the power tool 5 from.
Der beispielhafte Spannmechanismus 11 spreizt einen Abschnitt 15 des Spannbands 10 von dem Gehäuse ab, wodurch der verbleibende Abschnitt an dem Gehäuse angeklemmt wird. Der Spannmechanismus 11 hat einen Kragen 16, der teilweise mit dem Auge 13 des Spannbands 10 überlappt. Das Spannband 10 kann gegenüber dem Kragen 16 längs der Griffachse 7 verschoben werden, so sich der Überlapp des Kragenes 16 mit dem Auge 13 vergrößert. Die freie Öffnung des Auges 13 verringert sich, wodurch das Spannband 10 an dem Gehäuse angeklemmt wird. Der Kragen 16 hat eine von der Griffstange 2 abgewandte Stützfläche 17, welche beispielhaft kreisbogenförmig ausgebildet ist. Die Stützfläche 17 kann zu der Kontur des Gehäuses der Handwerkzeugmaschine 5 komplementär ausgebildet sein, aber auch einfach durch ein oder mehrere Stützstreben ausgebildet sein, welche sich nur punktuell an dem Gehäuse anlegen. Der beispielhafte Kragen 16 ist schalenförmige mit zwei parallelen kreisbögenförmigen Stützflächen 17, zwischen denen ein Spalt in der Breite des Spannbands 10 ist. Der Abschnitt 15 des Spannbandes 10 verläuft teilweise zwischen den Stützflächen 17 in dem Spalt. The exemplary tensioning mechanism 11 spreads a portion 15 of the tension band 10 from the housing, thereby clamping the remaining portion to the housing. The tensioning mechanism 11 has a collar 16 which partially overlaps with the eye 13 of the tension band 10. The strap 10 can be moved relative to the collar 16 along the handle axis 7, so the overlap of the collar 16 increases with the eye 13. The free opening of the eye 13 is reduced, whereby the clamping band 10 is clamped to the housing. The collar 16 has a remote from the handle bar 2 support surface 17, which is formed by way of example circular arc. The support surface 17 may be formed complementary to the contour of the housing of the power tool 5, but also be easily formed by one or more support struts, which create only selectively to the housing. The exemplary collar 16 is cupped with two parallel arcuate support surfaces 17, between which there is a gap in the width of the tension band 10. The portion 15 of the tension band 10 extends partially between the support surfaces 17 in the gap.
Der Spannmechanismus 11 hat ein Spannrad 18 und eine Zugstange 19, welche einen dem Kragen 16 nahen Abschnitt 15 des Spannbands 10 gegenüber dem Kragen 16 verschieben. Das Spannrad 18 ist an dem Kragen 16 um die Griffachse 7 drehbar gelagert. Das Spannrad 18 ist längs der Griffachse 7 zumindest in Richtung zu dem Spannband 10 d.h. der Stützfläche 17 des Kragens 16 abgestützt, beispielsweise an einer der Griffstange 2 zugewandten Seite 20 des Kragens 16. Die Zugstange 19 ist koaxial zu der Griffachse 7 angeordnet und längs dieser beweglich. Die Zugstange 19 ist in dem den Kragen 16 nahen Abschnitt 15 des Spannbands 10 verankert. Vorzugsweise kann sich die Zugstange 19 nicht gegenüber dem Spannband 10 um die Griffachse 7 drehen. Beispielsweise ist die Zugstange 19 an dem Spannband 10 angeschweißt. Alternativ ist ein Kopf 21 der Zugstange 19 formschlüssig in dem Kragen 16 gefangen und nur längs der Griffachse 7 beweglich. Das Spannband 10 ist gegenüber dem Kragen 16 ebenfalls nicht um die Griffachse 7 drehbar. Die Zugstange 19 hat ein Schneckengewinde oder eine ähnliche Verzahnung, in welche eine Mutter 22 des Spannrads 18 eingreift. Der Anwender kann das Spannrad 18 per Hand drehen und darüber die Zugstange 19 längs der Griffachse 7 verschieben. Dabei wird der Abschnitt 15 durch die Zugstange 19 gegenüber dem Kragen 16 bewegt, gegebenenfalls dessen Überlapp mit dem Kragen 16 vergrößert, um den anderen Abschnitt des Spannbands 10 an dem Gehäuse der Handwerkzeugmaschine 5 anzuklemmen. The clamping mechanism 11 has a tensioning wheel 18 and a pull rod 19, which move a collar 15 near section 15 of the clamping band 10 relative to the collar 16. The tensioning wheel 18 is rotatably mounted on the collar 16 about the handle axis 7. The tensioning wheel 18 is supported along the handle axis 7 at least in the direction of the tensioning band 10, ie the support surface 17 of the collar 16, for example on a side 20 of the collar 16 facing the handlebar 2. The tension rod 19 is arranged coaxially with the grip axis 7 and along this movable. The pull rod 19 is anchored in the collar 16 near section 15 of the tension band 10. Preferably, the drawbar 19 can not rotate relative to the clamping band 10 around the handle axis 7. For example, the pull rod 19 is welded to the tension band 10. Alternatively, a head 21 of the pull rod 19 is positively caught in the collar 16 and movable only along the handle axis 7. The tension band 10 is also not rotatable relative to the collar 16 about the handle axis 7. The drawbar 19 has a worm thread or a similar toothing, in which a nut 22 of the tensioning wheel 18 engages. The user can rotate the tensioning wheel 18 by hand and move the pull rod 19 along the handle axis 7. In this case, the section 15 is moved by the pull rod 19 relative to the collar 16, possibly its overlap with the collar 16 is increased in order to clamp the other portion of the tension band 10 on the housing of the power tool 5.
Die Griffstange 2 und der Befestigungsmechanismus 3 sind durch den zwischenliegenden Dämpfer 6 miteinander verbunden. Der Dämpfer 6 ermöglicht eine relative Auslenkung der Griffstange 2 gegenüber dem Befestigungsmechanismus 3 längs der Befestigungsachse 12, allerdings übt der Dämpfer 6 dabei eine der Auslenkung entgegenwirkende Kraft aus. Der Dämpfer 6 beinhaltet eine längs der Griffachse 7 orientierte Blattfeder 23, deren distaler Abschnitt 24 an der Griffstange 2 und deren proximaler Abschnitt 25 an dem Befestigungsmechanismus 3 befestigt ist. The handlebar 2 and the attachment mechanism 3 are interconnected by the intermediate damper 6. The damper 6 allows a relative deflection of the handle bar 2 with respect to the fastening mechanism 3 along the mounting axis 12, however, the damper 6 exerts a force counteracting the deflection. The damper 6 includes a leaf spring 23 oriented along the handle axis 7, whose distal portion 24 is fastened to the handle bar 2 and whose proximal portion 25 is attached to the attachment mechanism 3.
Der beispielhafte Dämpfer 6 beinhaltet eine zu einem Ring gebogene Blattfeder 23. Die Blattfeder 23 hat zwei Längsseiten 26, die im Wesentlichen parallel zu der Griffachse 7 und senkrecht zu der Befestigungsachse 12 sind. Die beiden Längsseiten 26 sind durch im Wesentlichen senkrecht zu der Griffachse 7 verlaufende Querseiten 25, 24 verbunden. Die eine der Querseiten 24 bildet den distalen Abschnitt der Blattfeder 23 und kann beispielsweise in die Griffstange 2 eingegossen oder mit der Griffstange 2 verschraubt sein. Die andere der Querseiten 25 bildet den proximalen Abschnitt der Blattfeder 23 und ist an dem Befestigungsmechanismus 3 befestigt. Die proximale Querseite 25 ist längs der Griffachse 7 von einer Seite durch das Spannrad 18 und von der anderen Seite durch eine Mutter 22 gehalten. Die proximale Querseite 25 hat ein auf der Griffachse 7 liegendes Loch 27. Die Zugstange 19 verläuft durch das Loch 27 und greift mit ihrem Außengewinde in das Innengewinde der Mutter 22 ein. Die Zugstange 19 verbindet die Mutter 22, die proximale Querseite 24 und damit die Blattfeder 23, das Spannrad 18, den Kragen 16 und das Spannband 10 zu einer zusammenhängenden Einheit. The exemplary damper 6 includes a leaf spring 23 bent into a ring. The leaf spring 23 has two longitudinal sides 26 that are substantially parallel to the handle axis 7 and perpendicular to the mounting axis 12. The two longitudinal sides 26 are connected by transversely extending substantially perpendicular to the handle axis 7 transverse sides 25, 24. One of the transverse sides 24 forms the distal portion of the leaf spring 23 and may for example be cast into the handle bar 2 or bolted to the handle bar 2. The other of the lateral sides 25 forms the proximal portion of the leaf spring 23 and is fixed to the attachment mechanism 3. The proximal transverse side 25 is held along the handle axis 7 from one side by the tensioning wheel 18 and from the other side by a nut 22. The proximal transverse side 25 has a lying on the handle axis 7 hole 27. The pull rod 19 extends through the hole 27 and engages with its external thread in the internal thread of the nut 22 a. The pull rod 19 connects the nut 22, the proximal transverse side 24 and thus the leaf spring 23, the tensioning wheel 18, the collar 16 and the strap 10 to a coherent unit.
Die Mutter 22 hat einen Kopf 28 und einen Hals 29. Der Kopf hat einen zu dem Loch 27 größeren Durchmesser; der Hals 29 hat einen zu dem Loch 27 gleichen Durchmesser. Der Kopf 28 liegt an der proximalen Querseite 25 an; der Hals 29 ragt durch das Loch 27. Das Spannrad 18 ist mit dem Hals 29 drehfest verbunden. Beispielsweise hat der Hals 29 eine ebene Schlüsselfläche oder eine anderweitig zu der Griffachse 7 asymmetrische Gestalt. Das Drehen des Spannrads 18 wird auf die Mutter 22 übertragen und bewegt die Zugstange 19 längs der Griffachse 7. Die Längsseiten 26 der Blattfeder 23 sind senkrecht zu der Befestigungsachse 12. Vorzugsweise sind die Längsseiten 26 eben und zueinander parallel. Die Längsseiten 26 sind jeweils mit einem längs der Griffachse 7 verlaufendem Schlitz 30 versehen. Ein Splint 31 greift in die beiden Schlitze 30 ein. Der Splint 31 steckt zudem in der Zugstange 19. Der Splint 31 unterbindet ein Verdrehen des Dämpfers 6 gegenüber der Zugstange 19 um die Griffachse 7. Hierdurch wird gewährleistet, dass die Längsseiten 26 senkrecht zu der Befestigungsachse 12, entlang welcher eine Dämpfung erfolgen soll, orientiert sind. Anstelle der zu dem Ring gebogenen Blattfeder 23 mit zwei Längsseiten 26 können auch andere Geometrien von Blattfedern verwendet werden, sofern diese zumindest eine zu der Befestigungsachse 12 senkrechte oder geneigte Längsseite 26 aufweisen. Beispielsweise kann die Blattfeder C-förmig ausgebildet sein, d.h. mit einer Längsseite 26 und einer distalen Querseite 24 und einer proximalen Querseite 25. Ferner kann die Blattfeder mehrfach gefaltet sein, um mehr als zwei parallele Längsseiten zu erhalten. The nut 22 has a head 28 and a neck 29. The head has a larger diameter to the hole 27; the neck 29 has a diameter equal to the hole 27. The head 28 abuts against the proximal transverse side 25; the neck 29 protrudes through the hole 27. The tensioning wheel 18 is rotatably connected to the neck 29. For example, the neck 29 has a flat key surface or otherwise asymmetric to the handle axis 7 shape. The rotation of the tensioning wheel 18 is transmitted to the nut 22 and moves the pull rod 19 along the handle axis 7. The longitudinal sides 26 of the leaf spring 23 are perpendicular to the mounting axis 12. Preferably, the longitudinal sides 26 are flat and parallel to each other. The longitudinal sides 26 are each provided with a longitudinal axis of the handle 7 extending slot 30. A split pin 31 engages in the two slots 30. The splint 31 is also in the pull rod 19. The split pin 31 prevents rotation of the damper 6 relative to the pull rod 19 to the handle axis 7. This ensures that the longitudinal sides 26 perpendicular to the mounting axis 12, along which a damping is to take place, oriented are. Instead of the curved leaf spring 23 with two longitudinal sides 26 to the ring and other geometries of leaf springs can be used, provided that they have at least one perpendicular to the mounting axis 12 or inclined longitudinal side 26. For example, the leaf spring can be C-shaped, ie with a longitudinal side 26 and a distal transverse side 24 and a proximal transverse side 25. Further, the leaf spring can be folded several times to obtain more than two parallel longitudinal sides.
Der Dämpfer 6 kann einen Sicherungskäfig 32 aufweisen. Der Sicherungskäfig 32 ist an der Griffstange 2 befestigt. Der beispielhafte Sicherungskäfig 32 ist ein hohler Zylinder oder ein hohler, stumpfer Kegel. Der Sicherungskäfig 32 kann an einer dem Befestigungsmechanismus 3 zugewandten Seite 20 offen sein. Die Blattfeder 23 ist innerhalb des Sicherungskäfigs 32 angeordnet. Die Blattfeder 23 ist im unbelastetem Zustand von den Innenflächen 33 des Sicherungskäfigs 32 beabstandet. Ein Abstand der Innenflächen 33 zu der Blattfeder 23 kann längs der Griffachse 7 von der Griffstange 2 zu dem Befestigungsmechanismus 3 zunehmen. Überschreitet ein Auslenken der Griffstange 2 gegenüber dem Befestigungsmechanismus 3 eine kritische Auslenkung, legt sich die Blattfeder 23 an die Innenfläche 33 an. Die Blattfeder 23 wird somit vor einer Überbeanspruchung längs der Befestigungsachse 12 geschützt. The damper 6 may have a safety cage 32. The safety cage 32 is attached to the handle bar 2. The exemplary safety cage 32 is a hollow cylinder or a hollow, blunt cone. The safety cage 32 may be open on a side 20 facing the fastening mechanism 3. The leaf spring 23 is disposed within the fuse cage 32. The leaf spring 23 is spaced in the unloaded state of the inner surfaces 33 of the securing cage 32. A distance of the inner surfaces 33 to the leaf spring 23 may increase along the handle axis 7 from the handle bar 2 to the attachment mechanism 3. If a deflection of the handlebar 2 with respect to the attachment mechanism 3 exceeds a critical deflection, the leaf spring 23 bears against the inner surface 33. The leaf spring 23 is thus protected against overstress along the mounting axis 12.
Das Spannrad 18 kann einen längs der Griffachse 7 vorstehenden Saum 34 aufweisen, welcher längs der Griffachse 7 mit dem Sicherungskäfig 32 überlappt. Vorzugsweise umschließt der Saum 34 den Sicherungskäfig 32. Der Saum 34 ist radial, bezogen auf die Griffachse 7, von dem Sicherungskäfig 32 beabstandet, um das Dämpfungsverhalten des Dämpfers 6 nicht zu beeinflussen. Der radiale Abstand des Sicherungskäfigs 32 zu dem Saum 34 ist so gewählt, dass bei einer übermäßigen Auslenkung der Griffstange 2 gegenüber dem Befestigungsmechanismus 3 der Sicherungskäfig 32 an dem Saum 34 anschlägt. Die Blattfeder 23 wird somit vor einer Überbeanspruchung längs der Befestigungsachse 12 geschützt. Der Sicherungskäfig 32 weist zwei Rillen 35 oder Schlitze längs der Griffachse 7 auf. Die Rillen 35 liegen den Schlitzen 30 der Blattfeder 23 gegenüber. Der Splint 31 greift in die Rillen 35 ein. Bei einem Bruch der Blattfeder 23 sichert der Sicherungskäfig 32 die Griffstange 2 an der Zugstange 19 bzw. dem Befestigungsmechanismus 3 und schützt den Anwender vor einem plötzlichen und vollständigen Versagen des Seitenhandgriffs 1. The tensioning wheel 18 may have a longitudinal edge 7 of the protruding seam 34 which overlaps along the handle axis 7 with the securing cage 32. Preferably, the seam 34 encloses the safety cage 32. The seam 34 is radially, relative to the handle axis 7, spaced from the safety cage 32 so as not to influence the damping behavior of the damper 6. The radial distance of the securing cage 32 to the seam 34 is selected such that upon excessive deflection of the handle bar 2 with respect to the fastening mechanism 3, the securing cage 32 abuts against the seam 34. The leaf spring 23 is thus protected against overstress along the mounting axis 12. The safety cage 32 has two grooves 35 or slots along the handle axis 7. The grooves 35 are opposed to the slots 30 of the leaf spring 23. The split pin 31 engages in the grooves 35. In the event of breakage of the leaf spring 23, the safety cage 32 secures the handle bar 2 to the pull rod 19 and the attachment mechanism 3, respectively, and protects the user from sudden and complete failure of the side handle 1.

Claims

PATENTANSPRÜCHE
1 . Seitenhandgriff für eine Handwerkzeugmaschine (5) mit 1 . Side handle for a hand tool (5) with
einer längs einer Griffachse (7) angeordneten Griffstange (2) zum Halten des Seitenhandgriffs (1 ) mit einer Hand, einem Befestigungsmechanismus (3bz) zum lösbaren Befestigen des Seitenhandgriffs (1 bz) an der Handwerkzeugmaschine (5bz), der ein eine Befestigungsachse (12bz) umgreifendes Spannband (10bz) und einen Spannmechanismus (1 1 bz) aufweist, wobei der Spannmechanismus (1 1 bz) einen mit dem Spannband (10bz) längs der Griffachse (7) überlappenden und gegenüber dem Spannband (10) längs der Griffachse (7) verschiebbaren Kragen (16), eine an dem a handle bar (2) arranged along a handle axis (7) for holding the side handle (1) with one hand, a fastening mechanism (3bz) for releasably securing the side handle (1 bz) to the hand tool (5bz) having a fixing axis (12bz ) and a clamping mechanism (1 1 bz), wherein the clamping mechanism (1 1 bz) one with the clamping band (10bz) along the handle axis (7) overlapping and relative to the clamping band (10) along the handle axis (7 ) displaceable collar (16), one on the
Spannband (10) verankerte, längs der Griffachse (7) verschiebbare Zugstange (19) und ein um die Griffachse (7) drehbares und in ein Außengewinde (36) der Zugstange (19) eingreifendes Spannrad (18) aufweist, Tensioning band (10) anchored, along the handle axis (7) displaceable tie rod (19) and around the handle axis (7) rotatable and in an external thread (36) of the tie rod (19) engaging tensioning wheel (18),
einem Dämpfer (6), der die Griffstange (2) mit dem Befestigungsmechanismus (3) verbindet und der wenigstens eine zu Befestigungsachse (12) geneigt orientierte a damper (6) which connects the handle bar (2) to the attachment mechanism (3) and which is at least one inclined to the attachment axis (12)
Längsseite (26) einer Blattfeder (23) aufweist, wobei die Blattfeder (23) einen längs der Griffachse (7) verlaufenden Schlitz (30) aufweist, und Longitudinal side (26) of a leaf spring (23), wherein the leaf spring (23) has a longitudinal axis of the handle (7) extending slot (30), and
einem Splint (31 ), der an der Zugstange (19) befestigt ist und in den Schlitz (30) der Blattfeder (23) eingreift.  a split pin (31) which is fixed to the pull rod (19) and engages in the slot (30) of the leaf spring (23).
2. Seitenhandgriff nach Anspruch 1 , dadurch gekennzeichnet, dass die Blattfeder (23) senkrecht zu der Befestigungsachse (23) orientiert ist. 2. Side handle according to claim 1, characterized in that the leaf spring (23) is oriented perpendicular to the mounting axis (23).
3. Seitenhandgriff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Splint (31 ) längs der Befestigungsachse (12) orientiert ist. 3. Side handle according to claim 1 or 2, characterized in that the split pin (31) along the mounting axis (12) is oriented.
4. Seitenhandgriff nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dämpfer (6) einen an der Griffstange (2) befestigten Sicherungskäfig (32) aufweist, in welchem die Blattfeder (23) angeordnet ist, wobei der Käfig (37) einen längs der Griffachse (7) verlaufenden Schlitz (30) aufweist, in welchen der Splint (31 ) eingreift. 4. Side handle according to one of the preceding claims, characterized in that the damper (6) has a on the handle bar (2) secured securing cage (32) in which the leaf spring (23) is arranged, wherein the cage (37) is a longitudinal the handle axis (7) extending slot (30), in which the split pin (31) engages.
5. Seitenhandgriff (1 ) nach Anspruch 4, dadurch gekennzeichnet, dass der Sicherungskäfig (32) eine geneigte Innenfläche (33) aufweist, deren Abstand zu der Längsseite (26) der Blattfeder (23) in Richtung von der Griffstange (2) zu dem Befestigungsmechanismus (3) zunimmt. 5. side handle (1) according to claim 4, characterized in that the securing cage (32) has an inclined inner surface (33) whose distance from the longitudinal side (26) of the leaf spring (23) in the direction of the handle bar (2) to the Mounting mechanism (3) increases.
6. Seitenhandgriff (1 ) nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass das Spannrad (18) einen in Richtung zu der Griffstange (2) vorstehenden Saum (34) aufweist, welcher längs der Griffachse (7) mit dem Sicherungskäfig (32) überlappt, und der Saum (34) in zu der Griffachse (7) radialer Richtung einen Abstand zu dem Sicherungskäfig (32) aufweist. 6. side handle (1) according to claim 4 or 5, characterized in that the tensioning wheel (18) in the direction of the handle bar (2) projecting edge (34) which along the handle axis (7) with the safety cage (32) overlaps, and the seam (34) in the direction of the handle axis (7) radial direction at a distance from the securing cage (32).
7. Seitenhandgriff nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Blattfeder (23) zwei zueinander parallele Längsseiten (26) aufweist, welche über senkrecht zu der Griffachse (7) verlaufende Querseiten (25, 24) miteinander verbunden sind. 7. Side handle according to one of the preceding claims, characterized in that the leaf spring (23) has two mutually parallel longitudinal sides (26), which are perpendicular to the handle axis (7) extending transverse sides (25, 24) connected to each other.
8. Seitenhandgriff (1 ) nach Anspruch 7, dadurch gekennzeichnet, dass eine der Querseiten (25) ein Loch (27) auf der Griffachse (7) aufweist und das an der Querseite (25) anliegende Spannrad (18) eine Mutter (22) aufweist, die einen durch das Loch (27) geführten Hals (29) und einen das Loch (27) hintergreifenden Kopf (28) aufweist. 8. side handle (1) according to claim 7, characterized in that one of the transverse sides (25) has a hole (27) on the handle axis (7) and on the transverse side (25) voltage applied tensioning wheel (18) has a nut (22) comprising a through the hole (27) guided neck (29) and a hole (27) engaging behind the head (28).
9. Seitenhandgriff (1 ) nach Anspruch 8, dadurch gekennzeichnet, dass das Außengewinde (36) der Zugstange (19) in die Mutter (22) eingreift. 9. side handle (1) according to claim 8, characterized in that the external thread (36) of the drawbar (19) engages in the nut (22).
EP16744724.2A 2015-08-06 2016-07-26 Side grip Active EP3331665B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15179926.9A EP3127658A1 (en) 2015-08-06 2015-08-06 Side grip
PCT/EP2016/067764 WO2017021210A1 (en) 2015-08-06 2016-07-26 Side handle

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EP3331665A1 true EP3331665A1 (en) 2018-06-13
EP3331665B1 EP3331665B1 (en) 2019-05-15

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EP16744724.2A Active EP3331665B1 (en) 2015-08-06 2016-07-26 Side grip

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WO2017021210A1 (en) 2017-02-09
EP3331665B1 (en) 2019-05-15
CN107921617B (en) 2021-04-16
US20180229356A1 (en) 2018-08-16
US10537984B2 (en) 2020-01-21
EP3127658A1 (en) 2017-02-08

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