DE3441857A1 - UNIVERSAL KEY - Google Patents

Description

Description

The invention relates to a universal key for tightening or loosening screw heads, nuts and pipe sleeves or the like. Connecting organs according to the preamble of claim 1.

Universal keys of this type (DE-Gm 74 03 522) have a closed key body for recording Different sized screw heads, nuts or the like. Fasteners equipped. This ring-shaped polygonal key body is at one end of the handle by means of a "perpendicular to its gripping plane Axis mounted pivotably. In order to grasp the connecting member to be rotated, there occurs a formed at the end of the handle Press-on nose interacts with the key body. However, these well-known universal keys are Can only be used for detecting axially accessible connecting elements.

The invention is therefore based on the object of providing a universal key of the type mentioned at the beginning improve that it can also be used on built-in and only radially accessible connecting elements can.

According to the invention, this object is achieved with a universal key according to the preamble of claim 1 by the characterizing features of this claim solved.

The insertion mouth formed according to the invention in the key body makes it possible to use this universal key on a built-in connecting element such as a pipe socket of a pipeline, to clamp it and to drain it. The insertion mouth can be relatively far, so that too

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χ all that can be picked up by the opening in the key body Connecting organs can be introduced. The universal key designed in this way can thus Use in the manner of a pipe wrench for connecting orcranes that are only accessible radially, including cylindrical ones Connecting organs and pipe sections can be detected and rotated. It is advantageous when the pivot axis of the key body is adjustable in an arcuate bearing slot, whereby in addition to a change in the grip opening, also the entry? Guide mouth to facilitate the inclusion of a connecting member more strongly separated from the pressure edge can be * .

Further features of the invention are set out in the subclaims. claimed.

The invention is illustrated below using an example, which is also shown schematically in the drawing is described in more detail. Show it:

Fig. 1 is a plan view of a universal key with arranged on both ends of the handle Key bodies in opening position and 'Fig. 2 a part of this universal key in

Gripping position.

The universal key shown consists of a handle 1 and approximately ring-shaped key bodies 2 and 3 of different sizes which are attached to both ends and which enclose polygonal gripping openings 4, 5. These key bodies can be pivoted around the handle ends by means of pivot axes 6, ₇ , which are designed to be press-on noses TO 7 11 with press-on edges 12, 13. Each key body has a * Lägefflausch, which in the case of the key body 2 is, for example, a fork-shaped bearing flange 1 5, which forms the pressure lug 10

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includes on both sides, while the bearing flange 16 of the key body between a forked pressure nose 11 is stored. The gripping openings 4.5 v / ground of irregular angled circumferential leg not limited, wherein one of the pressing edge 12 remote leg 18 merges into a gripping angle 20 and with a free one Leg 21 ends. An insertion mouth 24 extends from this delimiting edge 22 to a foot edge ar. Bearing flange 15. The foot edge is expediently provided in such a way that it is in the swiveled-out position (Fig. 1) of the key body with the pressure edge 12 approximately covers. The boundary edge 22, however, can go so far be separated from the fact that an insertion mouth that is as wide as possible arises, but on the other hand the grip angle can still be fully used.

With this universal wrench, larger and smaller screw heads, nuts, pipe sleeves or the like can be used. be tightened or loosened, regardless of whether these connecting members axially or only radially accessible are. The insertion mouth is expediently made so wide that even the largest of the gripping opening is still detectable connecting organs can be introduced. The inner surfaces of the gripping openings, at least the The gripping angle of the key rings and, if possible, the pressure edge can be roughened or corrugated, in order to obtain non-slip stop surfaces, in particular in order to also use round heads or cylindrical profiles, like pipes, to be able to grasp better.

The key body can also be used in a known manner a transverse axis 3O be tiltable to the side.

According to a further development of this universal key, the pivot axis 6 of the key body is in one Bearing slot 31 (dashed line) mounted, whereby this pivot axis occupy two different settings

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can. The gripping opening can be in its active or working position can be enlarged or reduced in this way as appropriate. Also the insertion mouth can thereby be further separated from the pressure edge and made more accessible.

As the figures show, the key body shown is 2 particularly suitable for receiving a hexagonal connecting member 33, for example by the insertion mouth 24 could be detected through it. In Fig. 2 this connecting member is in Greifbzw. Clamping position.

The invention is not limited to the

represented key bodies 2,3 with their trapezoidal shape Gripping angles 20, which are also differently lanoe

. May have legs and unequal angles. Will

J the grip angle formed by an acute angle,

then square and octagonal connecting organs can also be grasped well.

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Claims (4)

PATENT ADVERTISEMENT ^ Λ Λ 1 8 S 7 DIPL INQ. LEONHARD HAIN ^ * ö 'Authorized representative at the European Palentami Plpl-Ing. teonhird HiIn. Pitenlanw «». TjI 18. BOOO MOnihen I 8000 MÜNCHEN 2 To the TAL 18 German Patent Office phone io89) 29479a Zweibrückenstrasse 12 · TELEQR. patent service o___ ".., _ TELEX 5 22 873 HAIN D 8000 Munich 2 H / st Applicant: Lacrex Brevetti S.A. Via Eco, CH-6644 Orselina Title: Universal key 5 patent claims 1. Universal key for tightening and loosening screw heads, nuts, pipe sleeves or the like. Connecting organs with at least one rino-shaped key body which can be pivoted at one end of a handle in the handle plane with a polygonal grip opening for a connecting element to be grasped and one at the end of the handle formed pressing lug, the pressing edge of which enters the gripping opening when the key body is swiveled in, characterized in that the key body (2,3) has an insertion mouth (24) for the connecting element on its side swiveling over the pressing lug (10,11).
. 2. Universal key according to claim 1, characterized in that that the insertion mouth (24) extends from a foot edge (25) which, when the key body (2) is swung out, with the pressure edge (12) the pressure lug (10) is approximately bündia, up to an outer one Boundary edge (22) extends near the end of the adjacent leg (21) of the gripping angle (20). EPO COPY if] Bank: Bayer. Vereinsbank Munich bank code 70020270, account 821 36oo Hypo-Bank Munich bank code 70020001, account 580 343 7370 3. Universal key according to claim 1 or 2, characterized in that at least on the inner edges of the Greifwinkeis (20) and on the pressure edge (12) of the pressure nose (10) roughening, corrugation or the like are provided. 4. Universal key according to one of claims 1 to 3, characterized in - that the pivot axis (6) of the Key body (2) in an arcuate bearing slot (31) is adjustable. FPO COPY