DE7018249U - TOOL SHAFT OR HANDLE, IN PARTICULAR FOR IMPACT TOOLS. - Google Patents

Description

PATENTA NWA LTE
DR. PHIL. G. NICKCL · DR.-ING. J. DORNER

8 MONKS 15 LANDWEHRSTR. 35 POST BOX 104

TEL. (ΟβΠ) 55 5719

Munich, May 14, 1970 Lawyer reference number: 111 - Gm.

Company Niess & Werner oHG, 7921 Burgberg, Stettbergstr. 4b Tool handle or handle, in particular for tooling tools

The innovation concerns tool handles or Y / tool handles, especially for striking tools.

Tool handles and tool handles made of wood have the disadvantage that they splinter when bumped and hit against the handle material and can thus lead to injuries. If you hit that with a tool
If the target is missed, and instead of letting the tool handle strike, there is also the risk that the handle will break off and the tool will be thrown away, so that it can cause accidents.

Known tool handles made of plastic have the advantage that they do not splinter, but they are They are generally massive and heavy and unwieldy. The smooth surface of well-known plastic handles tends to slip away from the hand and eventually the surface shows larger accumulations of skin in the area Indentations that point to a contraction of the plastic material after the production of the

Li efrend grills or Dtieles in the upri tzguliverfanreii ijerunen.

ι) .λϊ \ - \ ι ϋΐο 'ieuaruru- becomes, on the other hand, em Y.erkzeugatiGi ooer -.-- riff -ecciiaffen, vveHaier easy, splinter-proof

rerriiiieii ', srkzeu' stieiös oasr V, Erkzeu / rqrif f it has a solciie leine liaaiu / ite., a * f, daii she the · surface of a • esci; iiiiu: iea, unlaked .iolz ^ rifi'es is similar.

named ^ i -, 'ansciia ± ten der rleuerunp; become three arc ι. achieves that the Vverkzeu ^ stiel or -: iriff has a toothy, elastic, amorciie outer skin and, without being enclosed by this: ° r, one; or ^ .- en G-eristkern, which is connected to the outside! ^ uυ Einst'lcki;". Preferably, both the iLVAisenuciut and the Gei'istkern consist of a plastic framed within a Komi, for example out.

ode ¹ - ¹ acrylonitrile or from a Llischpoiymerisat from two or · more of these substances.

in the stem or 'Jrin after the innovation shows, in addition to a üonan I ^r esti, TKeit, the surprising property of a -uten] / i: npf anr. of tremors which are due to an inner inner surface of the pores. On the other hand, however, a noaeruii-si'-ernaioer V; tool handle is able to produce a raised ^ aa: is'ruc: .un _; r almost unlimited, as is the case with hammer-free hammers on the step, for example. acts and cai hammering with wooden sticks to replace the. Stems about 6 V. ocuen necessary.

Appropriate design of the innovations form the subject of the attached land use claims.

In the following, the innovation is illustrated by the description of various spatial shapes with reference to the enclosed Drawing explained in more detail. Tn of the drawing represent:

Figure 1 is a perspective illustration of a hammer with a handle according to the innovation, which is shown partially cut open,

Figure 2 shows a cross section through the handle of the hammer according to Figure 1,

FIG. 3 shows a handle after the firing with a prefabricated tube provided therein and

FIG. 4 shows a handle for a striking tool with a constriction serving for damping.

The handle 1 of the hammer shown in Figure 1 has a tough, elastic, amorphous outer skin 2, which has a enclosing porous jerüstkern 3, which consists of the same material as the outer skin 2 and is integrally connected to this is.

A dividing line between the outer skin 2 and the framework core 3 is drawn in FIG. 2, but it is In the case of practically executed spatial forms of the innovation, a constant transition between the outer skin 2 and the core of the framework 3 to be determined.

^ The shape just described of an innovation according to the invention Four tool handle or handle can be produced by that within a mold using a propellant such as citric acid or sodium bicarbonate, a plastic is foamed by the propellant against the

I'ormvvana'onp-en. is pressed _v whereby the outer skin is formed.

Suitable plastics are polyethylene, polystyrene, polyamide, butadiene, acrylonitrile or copolymers in the ^7th two or more of these plastics

The mold in which the Y tool handle or handle according to the invention is produced can be equipped with a mold core which provides the molded part to be produced with a bore, as indicated at 4 in FIG. This bore has on its inner wall a skin 5 which is similar to the outer skin 2 of the corresponding handle and f to a particularly firm grip of the handle inserted into the ^tool. .; j.rt.

In ii-door 4, a handle for a striking tool is shown, which is provided with a constriction 6 that removes vibrations from the grip area 7 of the handle in question. Dis 3inschn ^; irung 5, in conjunction with the damping property of the porous grid core 3, enables vibration-free handling of the tool in question.

7O182 ^ 9io.9.7O

Claims (1)

ο c Li ux ζ ans or ^ c ne: ericz 3u-: sxiei caer-, tj.ii, msc-esonc-ers: j.r Ij-C ^ vJ ^ _ n-iS ^ ■ denotes, da .; as well as dia Au2-ennaut (2) as also aer rerüGtKern i3) - ^ s a; "inner.iaic a for.?, εui ^ eschäumten 3.., Eriizeurstiai oaar - ^ rriii nac; i iUisorui.-n I oaer 2, aaaurc- gskennzeiciinet that he is a fine ^ af ^ aunt upper 4. vVerkzeucstiel or -, rriii nacii claim 2 or 3> because it is marked c.>. S Polyitnylene or polystyrene or polyamide or butadiene or acrylonitrile or from a copolymer of two or more of these substances. of claims 1 ice 4 for Scnlarwsriczeuge, aaau.roη peicennzeicnnet that he is stranded with a mix hoi aui a riana ^ reef area (7) scnv / m ^ sdampfenden üinsermirun-y- {(;) . 6 . .erKzeu ^ s is provided, which at its inner wall one of the outer skin (2) corresponding Has reinforcing skin (5).