DE2347667A1 - Anchoring device for tool post or handle - has surrounding holder which fits in recess with two sets of double arm levers - Google Patents

Abstract

The design is for anchoring the post in a recess in a hand tool or machine tool table. A particular application is for broom handles where the normal methods of fixing are unreliable. One of the sets of levers fits on a circular holder surrounding the handle. The other ends act on a tapering collar that is inserted in the tool recess. The other pair of levers fit above the ring holder and bend round onto the handle. The first levers have a serrated surface and this is at a thread angle so that the lug formed by the levers can be screwed into position.

Description

Herne, 8000 Munich 40,

Freiligrathstrasse 19 Π! · »! I · ♦ λ OM Rafer Eisenacher Strasse 17

P.O. Box 140 ül ^ ..-, sg. η. Π. ΒΒΠΓ Pat. Betzier

Pat. Herrmann-Trenlepoh! DlDl-Ph VS EcfliSfCl ΒβΙΖίβΓ Telephone: 36 30 11

⁵¹⁰¹⁴ Dipl.-Ing. W. Herrmann-Trentepohl 353013

Telegram address: Telegram address.

Bahrpatente Herne PATENTANWÄLTE Babetzpat Munich

Telex 08 229 853 Telex5215360

ρ ~ 1 bank accounts:

Bayerische Vereinsbank Munich 952 Dresdner Bank AG Herne 7-520 499 Post check account Dortmund 558 68-467

Ref .: M 04 392 B / h.

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Munich

September 17, 1973 Willi Henning, Recklinghausen-Süd, Düppelstr. 6th

Device for anchoring the insert end of a handle in a bore in working equipment.

The invention relates to a device for anchoring the insert end of a handle in a bore in working equipment, consisting of a holding body that can be placed on the insert end of the handle and encompasses it.

It is known to use the insert end of a handle for attachment to sharpen something in a piece of equipment, for example a broom or the like, and in the back of the piece of equipment Insert the intended hole and then anchor the work equipment by pushing the handle at the free end. While this type of attachment is simple, it is generally not very durable.

It has therefore already gone over to providing a holding body on the handle end to be inserted, which has a type Has screw threads on the outside so that the stem is screwed into the opening in the work equipment and is better fixed by the threads. One also knows already connecting devices in which a threaded retaining body is inserted into the opening in the work equipment

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is used as well as on the insert end of the handle corresponding mating thread is attached.

However, even with such fastenings, loosening becomes apparent after a while. In particular, these are Connections not secured against unintentional unscrewing.

The object of the invention is to create a device for anchoring the insert end of a handle in a Bore of work equipment that is characterized by a simple structure and easily wedged leaves, but can be solved again if necessary.

This object on which the invention is based is achieved in that the holding body consists of at least two double-armed There is levers which are pivotally mounted on a ring holder encompassing the male end, their one Lever arms to be inserted into the hole in the work equipment, have a tapering end ending in an outwardly pointing claw, while their other, shorter lever arms are bent substantially perpendicular to the handle.

This device ensures that the longer lever arms are well in the bore of the work equipment anchoring, the claws pointing outwards also contribute significantly to this anchoring, while on the other hand the handle is grasped by the shorter lever arms and also firmly anchored.

In a further embodiment of the invention, the tapered lever arms are inclined inwards from the ring holder kinked and then merge into the tapering, weaker end part.

In this way, a safe use of this lever

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poor in the bore of the work equipment and it results in a clean wedging when tightening the connecting device.

A plurality of thread-like corrugations are preferably provided above the transition into the tapering end part. This makes it possible to use the device according to the invention even when in the bore of the Work equipment already has a threaded pull or a holding device with threaded pulls is used.

The double-armed levers preferably have an inflection at the pivot point into which they can be drawn from the outside Ring of the ring holder puts, which has a second ring, which is below the bend from the inside against the upper end of the longer lever arm is supported and connected to the other ring via at least one spacer bar.

This double ring design of the ring holder is particularly easy to implement and thus secures the individual levers falling out of the arrangement, but at the same time good pivotability of the lever is guaranteed.

The device according to the invention preferably contains four double-armed levers, but this is of course the principle of the invention Even with two such levers, this is fully preserved.

The drawing shows an embodiment in a single figure.

At 1 a piece of equipment is shown in section, which has a conventional bore at 2, which optionally can be lined with a threaded chuck.

3 denotes the in the working equipment 1, for example a broom or the like. Handle to be used. The connection between work equipment 1 and handle 3 takes place via the

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connecting device indicated generally at 4. These Connection device contains a pin holder, consisting of from the two rings 5 and 6, which are connected to one another over the distance step · 7. Tn the ring holder are levers 8 used so that it is with the inflection 9 of support the inside against the upper ring 5 and with the bend 10 from the outside against the lower ring 6. The lower Lever arm 11 runs diagonally downwards, as can be seen particularly clearly at 11 'on the middle lever. Of the The lever ends in an outwardly pointing claw 12. It also has a corrugation at 13. The lever 8 contains furthermore a lever arm 14 which has an inwardly facing cutting edge 15 which extends against the outside of the Stalk.

When the handle 3 is driven in, the lever arm 12 can be seen pressed inwards, because of the ring arrangement 5, 6 also

the edge 15 of the lever arm 14 performs an inward movement. The handle is thus securely grasped at the edges 15 and at the same time firmly with the help of the claws 1? anchored in the opening 16 of the work tool.

The free cards 15 are preferably the shorter ones Lever arms 14 of the handle rounding adapted rounded what cannot be seen from the drawing.

In the embodiment shown, there are four levers 8 intended. Of course, only three, two or more such levers can be used.

The arrangement consists either of metal or corresponding stable plastic. Driving and securing the handle 3 in the work tool. 1 takes place in the usual Way.

Patent claims:

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Claims (5)

Claims 1. / Device for anchoring the insert end of a Handle in a hole in working equipment, consisting of a holding body that can be placed on the insert end of the handle and encompasses it, thereby characterized in that the holding body (4) consists of at least two double-armed levers (8) consists, which are pivotably mounted on a ring holder (5, 6) encompassing the male end, wherein One of its lever arms (11) has a tapering one to be inserted into the bore (16) of the working equipment (1) and in an outwardly pointing claw (12) have a tapering end (11, 11 '), while their other, shorter lever arms (14) bent over essentially perpendicular to the handle (3) are. 2. Apparatus according to claim 1, characterized in that the tapered lever arms (11, 11 ') from the ring holder (5, 6) at an angle are inwardly bent and then in the tapering, pass over the weaker end part. 3. Apparatus according to claim 2, characterized in that above the transition a plurality of thread-like corrugations (13) are provided in the tapering end part. 4. Apparatus according to claim 1, 2 or 3 »characterized in that the double-armed Lever (8) at the pivot point have a bend (9) into which a ring (5) of the Ring holder sets, which has a second ring (6), which is below the bend from the inside (at 10) against the upper end of the longer lever arm (11) 509814/0118 _ ₆ _ and with the other ring over at least. a spacer web (7) is connected. 5. Device according to one or more of the preceding Claims, characterized gekennzeioh net that the free edges (15) of the shorter Lever arms (14) are rounded to match the rounding of the handle. 50 98 U / 01 18