Scissors with movable grip eye

Details Scissors with movable grip eye Scissors with movable grip eye

1998-01-06

1999-11-23

Payer, Hwei-Siu

Cutlery

Handles and blade connections

Shear or nipper type

30232, B26B 1320

Patent

active

059877570

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention relates to scissors, especially haircutting scissors, with two scissor handles and handle eyes arranged at the ends of the handles, where at least one of the handle eyes is provided with a movable grip eye which accommodates the thumb or a finger of the person using the scissors, this grip eye being enclosed by the corresponding handle eye along its entire circumference and able to rotate freely about the axis perpendicular to the handle eye, while being mounted in the handle eye in such a way as to be incapable of rotation perpendicular to this axis.
Such scissors are known from document U.S. Pat. No. 2,640,264. In these scissors, the grip eye is mounted on the inside of the handle eye by way of a ball bearing. On the one hand, the ball bearing permits free rotation and, on the other hand, it ensures that the grip eye is positioned in the handle eye so as to be incapable of movement perpendicular to the axis of rotation. If the grip eye is to be replaced in order to ergonomically adjust it to the thumb or finger of the person using the scissors, this is not easily possible and can only be done by removing the balls in the type of bearing arrangement described. Furthermore, the scissors cannot be used without the grip eye.
A different type of scissors with movable grip eye is known from document DE-B-2811398. The outer side of the grip eye described in this document is of spherical design and arranged in a bearing of corresponding shape. The handle eye belonging to the grip eye is designed in forked fashion for radial insertion of the grip eye. In this context, the movable grip eye can be both rotated about the axis perpendicular to the handle eye and swivelled perpendicular to this axis, meaning that the thumb moves relative to the grip eye when using the scissors and that no pressure marks occur on the thumb when using the scissors over a lengthy period of time.
However, these scissors have the disadvantage that the simultaneous rotating and swivelling capacities of the grip eye in relation to the handle impair the controlled guidance of the scissors and that the thumb's freedom of movement is too great, which is perceived as annoying by the person using the scissors. Furthermore, the fork-shaped handle eye has the disadvantage that the grip eye can work its way out and hair can get trapped between the handle eye and the grip eye. Furthermore, dirt or other particles can also easily get between the handle eye and the grip eye from the open area of the handle eye. It can often be desirable to use the scissors without the movable grip eye, but this is impossible with the fork-shaped handle eye.


SUMMARY OF THE INVENTION

The present invention is based on the task of creating scissors of the kind mentioned at the start, which can be optionally used with different grip eyes or without a grip eye, where the easy and quick changing or removal of the grip eye rotating freely in the handle eye is of central importance.
According to the invention, the task is solved, on the one hand, in that the grip eye displays guide elements which project radially outwards on both sides and lie against the side of the handle eye, and in that the grip eye is made of flexible material, meaning that it can be snapped into and removed from the handle eye in the direction of the axis perpendicular to the handle eye.
Owing to the flexible material, the grip eye can be quickly and easily secured to the handle eye by way of the guide elements projecting radially outwards on both its sides, in such a way that it is freely rotatable in the secured position. The guide elements projecting radially outwards on both sides of the grip eye permit reliable arrangement of the grip eye in the handle eye, so that it is mounted in the handle eye in such a way as to be incapable of movement perpendicular to the axis of rotation.
The guide elements expediently enclose the grip eye in annular fashion.
Particularly suitable for use as the bearing arrangement is a grip eye with an outer radial surface

REFERENCES:
patent: 606472 (1898-06-01), Ogden
patent: 923734 (1909-06-01), Tindall
patent: 1317041 (1919-09-01), Scott
patent: 1357200 (1920-10-01), Kiefer
patent: 2640264 (1953-06-01), Sullivan et al.
patent: 3951013 (1976-04-01), Laurenti
patent: 3974563 (1976-08-01), Koch
patent: 4091539 (1978-05-01), Watanabe
patent: 4254551 (1981-03-01), Megna et al.
patent: 5109608 (1992-05-01), Pracht

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