EP0662371B1 - Vibration-damped handle - Google Patents
Vibration-damped handle Download PDFInfo
- Publication number
- EP0662371B1 EP0662371B1 EP94117247A EP94117247A EP0662371B1 EP 0662371 B1 EP0662371 B1 EP 0662371B1 EP 94117247 A EP94117247 A EP 94117247A EP 94117247 A EP94117247 A EP 94117247A EP 0662371 B1 EP0662371 B1 EP 0662371B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration
- plates
- plate
- connection
- handle according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B25F5/006—Vibration damping means
Definitions
- the invention relates to a vibration-damped handle according to the preamble of patent claim 1.
- Handles on the drawbars of soil compacting devices hand-guided by means of the drawbar usually have two side parts which extend symmetrically from the drawbar to the side and towards the operator, between the ends of which the actual handle part extends, which is so wide that the operator can use both with the two parts Hands can be taken side by side.
- the actual handle part is a tube, which is connected at its ends via a coaxial rubber element to one or the other side part of the handle and at its ends with radial play in one with the respective side part rigidly connected collar engages, which limits the possibility of movement of the handle bar in the radial direction with respect to the side parts.
- the cushioning of a handle is more effective the larger the cushioned mass and the smaller the cushioning spring force.
- the latter must not be too small to achieve sufficient managers, so that the largest possible cushioned mass is desirable.
- the invention has for its object a vibration-damped To design the handle so that the sprung part has as large a mass as possible that parts necessary for the design of the handle are included in the sprung mass.
- the side parts which are essential for this are included in the sprung mass, because the damping elements are inserted between the oscillating plates forming these side parts and the drawbar close to the latter.
- the subclaims relate to preferred embodiments of the handle according to claim 1.
- the drawing shows an embodiment of the handle according to the invention in a perspective view.
- the handle consists of a connection part 1 and a handle part 6 which can be swiveled relative to it.
- the connecting part 1 has two mutually parallel elongated connecting plates 2, which in the exemplary embodiment are rigidly connected to the shaft 3a on both sides of an actuating shaft 3a, which is rotatably mounted on the end of the drawbar 3 at the end of an actuating element (not shown in more detail) for the vibration exciter of the vibration device, which is also not shown in the drawing . If it is not important to use the handle for the drive control of the compactor at the same time, the connecting plates 2 can also be connected directly to the drawbar 3.
- the handle part 6 has two oscillating plates 8, which are rigidly connected to one another via a handle 7 and between them accommodate the connecting plates 2 at a distance from them.
- the oscillating plates 8 and the connecting plates 2 are with each pair of plates by means of two rubber elements 4 arranged at a mutual distance at the ends of the elongated plates 2, 8 and connected to one another so as to be oscillatable.
- connection plates 2 and the rocking plates 8 parallel to each other also results in a slim handle with good functionality with regard to the operability of the device and a beautiful appearance.
Description
Die Erfindung bezieht sich auf einen schwingungsgedämpften Handgriff gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a vibration-damped handle according to the preamble of patent claim 1.
Handgriffe an Deichseln von mittels der Deichsel handgeführten Bodenverdichtungsgeräten weisen gewöhnlich zwei sich von der Deichsel aus symmetrisch zu dieser seitwärts und zum Bedienungsmann hin erstreckende Seitenteile auf, zwischen deren deichselfernen Enden sich der eigentliche Griffteil erstreckt, der so breit ist, daß er vom Bedienenden mit beiden Händen nebeneinander gefaßt werden kann.Handles on the drawbars of soil compacting devices hand-guided by means of the drawbar usually have two side parts which extend symmetrically from the drawbar to the side and towards the operator, between the ends of which the actual handle part extends, which is so wide that the operator can use both with the two parts Hands can be taken side by side.
Bei einem bekannten Handgriff gemäß dem Oberbegriff des Patentanspruchs 1 ist der eigentliche Griffteil ein Rohr, das an seinen Enden jeweils über ein koaxiales Gummielement mit dem einen bzw. anderen Seitenteil des Handgriffs verbunden ist und an seinen Enden mit radialem Spiel in einen mit dem jeweiligen Seitenteil starr verbundenen Bund eingreift, der die Bewegungsmöglichkeit der Griffstange in radialer Richtung bezüglich der Seitenteile begrenzt.In a known handle according to the preamble of claim 1, the actual handle part is a tube, which is connected at its ends via a coaxial rubber element to one or the other side part of the handle and at its ends with radial play in one with the respective side part rigidly connected collar engages, which limits the possibility of movement of the handle bar in the radial direction with respect to the side parts.
Die Abfederung eines Griffes ist um so wirksamer, je größer die abgefederte Masse und je kleiner die abfedernde Federkraft ist. Letztere darf zur Erzielung ausreichender Führungskräfte nicht zu klein sein, so daß eine möglichst große abgefederte Masse erstrebenswert ist.The cushioning of a handle is more effective the larger the cushioned mass and the smaller the cushioning spring force. The latter must not be too small to achieve sufficient managers, so that the largest possible cushioned mass is desirable.
Der Erfindung lieg die Aufgabe zugrunde, einen schwingungsgedämpften Handgriff so zu gestalten, daß der abgefederte Teil dadurch eine möglichst große Masse hat, daß für die Gestaltung des Griffes notwendige Teile mit in die angefederte Masse einbezogen sind.The invention has for its object a vibration-damped To design the handle so that the sprung part has as large a mass as possible that parts necessary for the design of the handle are included in the sprung mass.
Die vorgenannte Aufgabe wird durch die im Patentanspruch 1 genannten Merkmale gelöst.The above object is achieved by the features mentioned in claim 1.
Bei dem erfindungsgemäßen Handgriff sind die für diesen unerlässlichen Seitenteile mit in die abgefederte Masse einbezogen, weil die Dämpfungselemente zwischen die diese Seitenteile bildenden Schwingplatten und die Deichsel nahe bei dieser eingefügt sind.In the handle according to the invention, the side parts which are essential for this are included in the sprung mass, because the damping elements are inserted between the oscillating plates forming these side parts and the drawbar close to the latter.
Die Unteransprüche haben bevorzugte Ausführungsformen des Handgriffs gemäß Patentanspruch 1 zum Gegenstand.The subclaims relate to preferred embodiments of the handle according to claim 1.
Die Zeichnung zeigt ein Ausführungsbeispiel des erfindungsgemäßen Handgriffs in perspektivischer Darstellung.The drawing shows an embodiment of the handle according to the invention in a perspective view.
Der Handgriff besteht aus einem Anschlußteil 1 und einem diesem gegenüber schwingbaren Griffteil 6.The handle consists of a connection part 1 and a
Der Anschlußteil 1 weist zwei zueinander parallele langgestreckte Anschlußplatten 2 auf, die beim Ausführungsbeispiel beiderseits einer an der Deichsel 3 endseitig drehbar gelagerten Betätigungswelle 3a eines nicht näher dagestellten Stellelements für den Schwingungserreger des in der Zeichnung ebenfalls nicht näher dargestellten Vibrationsgeräts starr an die Welle 3a angeschlossen sind. Wenn es nicht darauf ankommt, den Handgriff gleichzeitig auch für die antriebsmäßige Steuerung des Verdichtungsgeräts einzusetzen, können die Anschlußplatten 2 auch direkt mit der Deichsel 3 verbunden sein.The connecting part 1 has two mutually parallel elongated connecting
Der Griffteil 6 weist zwei Schwingplatten 8 auf, die untereinander über einen Griffbügel 7 starr verbunden sind und zwischen sich die Anschlußplatten 2 mit Abstand von diesen aufnehmen. Die Schwingplatten 8 und die Anschlußplatten 2 sind bei jedem Plattenpaar mittels zweier im gegenseitigen Abstand bei den Enden der langgestreckten Platten 2,8 angeordneter Gummielemente 4 in Bezug aufeinander schwingbar miteinander verbunden.The
Zwischen den Gummielementen 4 ragen von der jeweiligen Anschlußplatte 2 senkrecht sowie im gegenseitigen Abstand zwei Bolzen 5 zur benachbarten Schwingplatte 8 vor, bei der sie im unbelasteten Zustand des Griffteils 6 zentral jeweils in eine kreisrunde Ausnehmung 9 eingreifen. Der Durchmesser der Ausnehmungen 9 und die Federkraft der Federelemente 4 sind so aufeinander abgestimmt, daß beim normalen Führen des Vibrationsgeräts kein Kontakt zwischen den Bolzen 5 und der sie jeweils umgebenden Wandung der Ausnehmung 9 entsteht und die Dämpfung der Gummielemente 4 auf den Griffteil 6 bzw. den Griffbügel 7 voll wirksam ist. Erst bei größeren Auslastungen, die aus Kräften resultieren, die nur selten zum Führen des Geräts erforderlich sind, entsteht Kontakt zwischen Bolzen 5 und Wandung der Ausnehmung 9 und verhindert eine zum Führen des Geräts in diesen Ausnahmefällen unzureichende Instabilität über die Gummielemente 4.Between the
Nachdem die die Seitenteile einer üblichen Griffgestaltung bildenden Schwingplatten 8 mit in die über die Gummielemente 4 gegen die Deichsel 3 abgefederte Masse mit einbezogen sind, kann ein optimales Dämpfungsverhalten resultierend aus einer möglichst großen Masse bei weitgehend vorgegebener Federsteifigkeit der Gummielemente 4 erzielt werden. Die Anordnung der Anschlußplatten 2 und der Schingplatten 8 parallel zueinander ergibt überdies einen schlank bauenden Griff von guter Funktionalität hinsichtlich der Führbarkeit des Geräts und schönem Aussehen.After the oscillating
Claims (6)
- Vibration-damped handle which is disposed on the end of a shaft (3) of a hand-operated vibration device for the purpose of ground compacting and comprises a connection piece (1) which is attached directly to the shaft (3) or to an actuating shaft (3a), mounted thereon, of an adjusting member for the purpose of controlling the vibration exciter of the vibration device and comprises a grip piece (6) which is spring-mounted with respect to the vibration device by means of rubber elements (4) and whose possible movements with respect to the connection piece (1) are defined by means of a stop device (5, 9), characterised in that the connection piece (1) comprises two connection plates (2) disposed substantially symmetrically to the shaft (3) and on both sides thereof and the grip piece (6) is provided with two vibration plates (8) which extend at a spaced disposition from the connection plates (2) which are received between the two vibration plates (8), the said plates being rigidly connected to each other by way of a grip bracket (7) and individually attached to the respective opposite lying connection plate (2) by means of at least two rubber elements (4) disposed at a spaced disposition and that each plate pair consisting of a vibration plate (8) and a connection plate (2) comprise at least one pin (5) for the purpose of defining the mutual movements of its plates (1,8), which pin in the absence of loading on the grip piece (6) extends from one (2) of the plates centrally into an associated recess (9) in the other plate (8).
- Handle according to claim 1, characterised in that the connection plates (2) and the vibration plates (8) are mutually identical in their longitudinal shape and extend in parallel with each other in the absence of loading on the grip piece (6).
- Handle according to claim 1 or 2, characterised in that the pins (5) protrude perpendicular from their respective plate (2).
- Handle according to any one of the preceding claims, characterised in that the recesses (9) are circular in the respective other plate (8).
- Handle according to any one of the preceding claims, characterised in that each plate pair comprises at least two pins (5), which are disposed at a spaced disposition, and associated recesses (9).
- Handle according to any one of the preceding claims, characterised in that the rubber elements (4) are in each case in the form of vibration damping buffers.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9319973U DE9319973U1 (en) | 1993-12-24 | 1993-12-24 | Anti-vibration handle |
DE9319973U | 1993-12-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0662371A1 EP0662371A1 (en) | 1995-07-12 |
EP0662371B1 true EP0662371B1 (en) | 1997-04-16 |
Family
ID=6902558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94117247A Expired - Lifetime EP0662371B1 (en) | 1993-12-24 | 1994-11-02 | Vibration-damped handle |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0662371B1 (en) |
DE (2) | DE9319973U1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10007869C1 (en) * | 2000-02-21 | 2001-08-23 | Ammann Verdichtung Gmbh | Vibrating plate |
DE102004015588A1 (en) * | 2004-03-01 | 2005-09-22 | Bomag Gmbh | Hand-steered, self-propelled earth-firming machine, e.g. vibrating plate, vibrating roller or tamper, has four flexible shock absorbers at corners of machine console which is attached to handle |
GB0420360D0 (en) * | 2004-09-13 | 2004-10-13 | Belle Engineering Sheen Ltd | Mounting apparatus and method |
US20080289842A1 (en) * | 2007-05-24 | 2008-11-27 | Larry Jake Chapple | Walk behind power tool vibration control handle |
EP2966955A4 (en) * | 2013-03-14 | 2016-11-23 | Husqvarna Ab | Dual function vibration isolation and handle swivel |
DE102014006256A1 (en) * | 2014-04-28 | 2015-10-29 | Wacker Neuson Produktion GmbH & Co. KG | Vibration-decoupled steering drawbar for a working device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003918A1 (en) * | 1970-01-29 | 1971-08-05 | Zuendapp Werke Gmbh | Power chain saw |
DE2155878A1 (en) * | 1970-11-12 | 1972-05-18 | The Scott & Fetzer Co., Lakewood, Ohio(V.St.A.) | chainsaw |
DE8701722U1 (en) * | 1987-02-05 | 1987-04-09 | Weber Maschinentechnik Gmbh, 5928 Laasphe, De |
-
1993
- 1993-12-24 DE DE9319973U patent/DE9319973U1/en not_active Expired - Lifetime
-
1994
- 1994-11-02 EP EP94117247A patent/EP0662371B1/en not_active Expired - Lifetime
- 1994-11-02 DE DE59402441T patent/DE59402441D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59402441D1 (en) | 1997-05-22 |
EP0662371A1 (en) | 1995-07-12 |
DE9319973U1 (en) | 1994-03-03 |
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