DE9400719U1 - tweezers - Google Patents

Description

The invention relates to a pair of tweezers with two legs, the gripping ends of which each have preferably practically flat - i.e. not longitudinally or transversely notched - grooved or ribbed surfaces, which when the tweezers are closed by pressing the gripping ends against each other interact with each other to form a gap diverging inwards from the ends.

Tweezers with such a construction are known, for example, from CH-PS 652'898. In the known tweezers, the legs are firmly connected to one another at the ends that are opposite the gripping ends.

According to the invention, the arms of the forceps are connected to one another in a rotatable manner (i.e. in the manner of scissors, e.g. at a pivot point). Clamps are known from surgery that have serrated interlocking catches on their rear ends, i.e. those provided with gripping eyelets, in order to keep the clamps in the closed position but to be able to open them when required. Such a firm clamping is not normally required for forceps and is not necessarily the purpose of the invention.

The object of the invention is to provide a novel pair of tweezers with improved ergonomic properties and an elegant design.

This is achieved according to the invention in that the legs cross each other like scissors at a pivot point.

Preferably, the tweezers are characterized in that the legs are provided with grip eyelets at their ends opposite the gripping ends.

Also preferred is a pair of tweezers which is characterized by the fact that the gripping eyelets are only partially curved towards the legs.

Furthermore, a pair of tweezers is preferred which is characterized in that the two legs each have an inner surface which is preferably continuously wound by at least approximately 90° in the longitudinal direction of the legs and wherein the two inner surfaces of the legs lie practically parallel to one another in the closed position of the tweezers.

Furthermore, a pair of tweezers is preferred which is characterized in that the legs in the area from the articulation point to approximately the beginning of the grip eyelets have an approximately semicircular or semi-oval profile in order to jointly form an essentially round or approximately circular or oval outer surface in the closed position.

Finally, a pair of tweezers is preferred which is characterized in that the surfaces which practically abut one another when the tweezers are in the closed position cooperate to hold the tweezers in the practically closed position, preferably by friction fit.

The drawing shows an embodiment of a pair of tweezers according to the invention. It shows in half-diagram:

Fig. IA the forceps in open and

Fig. IB in closed position

Fig. 2 a cross section of the legs according to 2-2 and

Fig. 3A, B, C enlarged parts of the tweezers from Fig. 1.

The tweezers 1 shown in Fig. IA (increased by approx. 30% compared to the preferred total length in the closed state) have two legs 11, 12, which are provided with preferably practically flat gripping surfaces 15, 16 at the gripping ends 13, 14 and (see Fig. 3B) in the closed position have an inwardly diverging, i.e. against the

The gripping ends form a converging gap. The end edges 151, 161 (Fig. 3C) of the gripping ends can be formed obliquely in a manner known per se, so that when the tweezers are closed and guided approximately vertically in relation to a target surface, a gripping tip can be formed.

The legs 11, 12 cross over each other like scissors and are connected to each other in a rotatable manner from the articulation point 19, as is known for scissors, e.g. preferably with a screw.

At the end of the legs 11, 12, which are opposite the gripping ends 13, 14, the legs are bent into eyelets 17, 18, which, according to a preferred embodiment, do not have the closed shape usually found in scissors, but are incompletely curved, as shown, to form a gap 171, 181.

The legs 11, 12 are also "spiraled", i.e. twisted parallel to each other, preferably by approximately 90*; in the representation of Fig. IA they are then preferably parallel to the plane of the drawing in the area of the articulation 19, but practically perpendicular to the plane of the drawing at the transition to the eyelets 17, 18. This spiral-like formation of the gap 112 (Fig.IB) between the legs 11, 12 in the area between the articulation point 19 and the beginning of the eyelet curvature at 179, 189 often offers advantages in terms of stability, ease of use, manufacturing technology and aesthetics.

Fig. IA shows the tweezers 1 in the closed state and the preferably practically continuous spiraling or twisting of the gap 112, which is formed by the opposing surfaces 110, 120 of the Legs 11, 12 are formed in the area between the linkage 19 and the transition to the eyelets 17, 18.

The two coiled legs 11, 12 together form the gap 112. At a point 119 which is usually relatively close to the linkage 19, the width of the gap 112 is practically zero, i.e. here the surfaces 110, 120 in the closed position (Fig. IB) rub against each other and can hold the tweezers in the closed position,

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which, for practical reasons, offers advantages over the normally open position of conventional forceps.

Fig. 2 shows the enlarged schematic cross section according to 2-2 of Fig. 1 B. The profile of the legs 11, 12 is preferably almost semicircular or semi-oval, so that the outer surfaces 21, 22 together form a circular, oval or otherwise rounded profile when the tweezers 1 are closed. An almost circular overall profile and a symmetrical design of both leg profiles are preferred for many applications. The preferred spiral can also be achieved with angular profiles if this is desired for practical or aesthetic reasons, e.g. a regular polygonal overall profile, in particular a triangular, square, cuboid or hexagonal overall profile.

Fig. 3A shows the gripping ends 15, 16 in the open tweezers position in a broken-off enlarged view. A slightly offset arrangement of the preferably practically flat surfaces 150, 160 is preferred for many purposes.

Fig. 3B shows schematically and in a further enlarged view the gap 30, which converges outwards (in the drawing above). This offers improved precision of the tweezer function when grasping fine hairs and the like.

Fig. 3C shows the broken-off and enlarged end of the tip 15 in a top view. The slanted design of the front edge 151 of the gripping ends 13, 14 (the second front edge 161 and the gripping end 14 are "under" the plane of the drawing and are covered) makes it possible to apply pressure to either just the tip 15 or the entire edge 151 by holding them at an appropriate slanted position, as is known with quality tweezers, particularly those for cosmetic purposes. However, the new tweezers are also advantageous for uses other than cosmetic. The preferred material is stainless steel, particularly with a matte surface.

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Claims (6)

Expectations 1. Tweezers (1) with two legs (11, 12), the gripping ends (13, 14) of which each have flat surfaces (15, 16) which, when the tweezers are closed, interact by pressing the gripping ends against each other to form a gap (30) diverging inwards from the ends, with the legs crossing over each other like scissors at a pivot point (19). 2. Tweezers according to claim 1, characterized in that the legs (11, 12) are provided with gripping eyelets (17, 18) at their ends opposite the gripping ends (13, 14). 3. Tweezers according to claim 2, characterized in that the grip eyelets (17, 18) are only incompletely curved towards the legs. 4. Tweezers according to one of claims 1-3, characterized in that the two legs (11, 12) each have an inner surface (110, 120) which is preferably continuously coiled in the longitudinal direction of the legs, preferably at least approximately by 90°, and wherein the two inner surfaces (110, 120) of the legs (11, 12) are practically parallel to one another in the closed position of the tweezers (1). 5. Tweezers according to claims 2 and 4, characterized in that the legs in the area from the articulation point (19) to approximately the beginning of the grip eyelets (17, 18) have an approximately semicircular or semi-oval profile (20) in order to jointly form a substantially closed round or approximately circular or oval outer surface (21, 22) in the closed position. 6. Tweezers according to one of claims 1-5, characterized in that the surfaces (110, 120) which are practically adjacent to one another when the tweezers are in the closed position cooperate to hold the tweezers in the practically closed position, preferably by friction fit.