DE10348975A1 - Vibration damped handgrip especially for a power hand tool has a cylindrical outer grip positioned onto a support grip and connected to the machine via elastomer damping inserts - Google Patents

Abstract

A vibration damped handgrip, e.g. for a power hand tool, has a cylindrical outer grip (2) spaced over an inner core grip (3). The core is connected to the machine via elastomer blocks (3a) clamped between supports and incorporating a damping mass (4) between two parts of the elastomer block. The elastomer material is selected to dampen a wide range of frequencies and has reduced risk of resonance.

Description

The The present invention relates to a vibration-damped handle, in particular for carrying and / or guiding a driven by a drive unit The implement, like drill, motor chainsaw or similar.

State of technology

at hand-held, in particular driven by a drive unit, machines it comes through various excitation mechanisms (imbalance, nonlinearities in the drive, Polygon effects) and / or simultaneously stimulating different eigenmodes the machine in resonance to vibrations on the handles. Such Vibrations are undesirable, since they are too early Fatigue when working with the machine.

presentation the invention

task The invention is a vibration damped handle, in particular for carrying and / or guiding a driven by a drive unit working device so that the vibrations transmitted by the drive unit to the handle clearly be reduced.

These Task is with a vibration damped handle with all Characteristics of claim 1 solved. Advantageous embodiments of Invention are described in the subclaims.

According to the invention indicates in a vibration-damped Handle, in particular for carrying and / or guiding a driven by a drive unit The implement, like drill, motor chainsaw or the like, which is a substantially cylindrical grip element as well as a device side arranged attachment portion comprises, according to the invention the attachment portion an intermediate piece made of rubber-elastic, preferably elastomeric material for vibration decoupling of the handle.

In a preferred embodiment The invention is the intermediate piece made of rubber-elastic material divided into two sections and between the two sections as a vibration absorber designed intermediate ring provided. This measure will not only the connection to the device housing compared to the pure elastomer connection stabilized, the vibration damper continues to cause a vibration reduction for by the design of the tiller predeterminable frequency bands.

Of the Inventive vibration-damped handle can be everywhere to use where man with his hands directly to the vibrations of a Machine is exposed, especially in hand-held work machines, such as drills, angle grinders, demolition hammers, concrete vibrators, chainsaws, woodworking tools, Brushcutters, lawnmowers, Snow blowers, Sweepers, chop saws, Orbital sanders, vibration saws, Raw grinder, milling cutter, electric sheet metal working tools and the like, but also in hand-held Food processors, like mixers, juicers and the same. Further fields of application are handles of means of transportation, such as bicycles, Motorcycles, Motor vehicles of all kinds, tree rails, agricultural machinery, aircraft and the same.

following The invention will be explained in more detail with reference to FIG.

It shows:

1 in a schematic side sectional view of a handle according to the invention.

One recognizes in 1 a vibration damped handle 1 in particular for carrying and / or guiding a drive unit driven by a drive unit, such as a drill, motor chain saw or the like, which is a substantially cylindrical grip element 2 and a device side arranged mounting portion 3 for attachment to a housing, not shown here. According to the invention, the attachment portion 3 an intermediate piece 3a of a rubber-elastic, preferably elastomeric material for vibration decoupling of the handle 1 on. According to a preferred embodiment of the invention is intermediate piece 3a divided into two sections, wherein between the two sections designed as a vibration absorber intermediate ring 4 is provided.

Claims (2)

Vibration-damped handle ( 1 ), in particular for carrying and / or guiding a drive unit driven by a drive unit, such as a drill, motor chain saw or the like, comprising a substantially cylindrical grip element ( 2 ) and a device-side arranged attachment section ( 3 ), wherein the attachment section ( 3 ) an intermediate piece ( 3a ) made of rubber-elastic, preferably elastomeric, material for vibration isolation of the handle ( 1 ) having. Vibration-damped handle according to claim 1, characterized in that the intermediate piece ( 3a ) made of rubber-elastic material in two subsections is divided and that between the two sections designed as a vibration absorber intermediate ring ( 4 ) is provided.