Cutlery – Razors – With cooperating shearing blades
Patent
1995-09-15
1997-09-23
Payer, Hwei-Siu
Cutlery
Razors
With cooperating shearing blades
30 436, B26B 1902, B26B 1914
Patent
active
056691386
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a dry shaving apparatus, with at least one shaving head comprised of an outer cutter and an inner cutter, whereof the outer cutter which includes an engaging surface is formed by a wall element having slots and bridge members, and by at least one further wall element disposed in an angled relationship to the first wall element, with hair-feeding means being provided on the wall element forming the engaging surface, and which hair-feeding means are configured in the manner of bridge members and having ends projecting freely relative to the angled wall element.
A dry shaving apparatus of the type initially referred to is known from German Utility Model DE-GM 82 27 546. The outer cutter of the shaving head is comprised of a foil screen member combined with a comb-type shearing member. Provided in the comb-type shearing member are slots forming cutting ledges and reaching as far as into the angled side wall of the comb-type shearing member at the end remote from the foil screen member, with at least two adjacent slots in the angled side wall forming a common opening. In the bridge members merging with the angled side wall and the bridge members terminating in advance of the angled side wall, a cutting ledge is ground for cooperation with the inner cutter of the comb-type shearing member.
From DE-AS 1 111 062 a dry shaving apparatus is known having a shaving head comprised of a foil screen member combined with a comb-type shearing member. The comb-type shearing member includes two shearing surfaces separated by a U-shaped recess. The shearing surfaces include slots forming cutting ledges that reach as far as into the angled outer wall elements carrying the shearing surfaces, with four adjacent slots in the angled side wall forming a common opening.
From U.S. Pat. No. 2,181,038 a dry shaving apparatus is known whose shaving head is formed of an essentially U-shaped shear plate and a triangular inner cutter operatively associated therewith. For the purpose of providing cutting elements, the shear plate provides in its planar engaging surface round holes as well as slots extending transversely to the longitudinal extent of the shear plate into the wall elements arranged at an angle to the shear plate, and the bridge members in the two transition areas from the planar engaging surface to the two angled wall elements are bulged in an arched fashion to avoid sharp edges.
From GB 1 367 445 a dry shaving apparatus is known having two parallel short-hair cutter units and one long-hair cutter unit arranged therebetween in a vertically adjustable manner. The long-hair cutter unit is of a T-shaped configuration, including two rows of sharp-edged teeth extending parallel to the short-hair cutter units and composed each of a cutting comb and a cutting blade in order to be able to utilize this long-hair cutter unit also for trimming purposes--see FIG. 12.
SUMMARY OF THE INVENTION
It is an object of the present invention to improve the shaving head of a dry shaving apparatus of the type initially referred to such as to ensure optimum feeding of hairs into the cutting area formed by outer and inner cutter, while at the same time preventing irritation to the skin.
According to the present invention, this object is accomplished in that the freely projecting ends protrude beyond the outer contour of the angled wall element and lie in the plane of the wall element forming the engaging surface. An essential advantage afforded by the present invention is that the freely projecting ends of the bridge-type hair-feeding means produce an outer cutter with a comb structure which is arranged in advance of the cutting area and whose freely projecting comb ends perform a combing function, thus providing an optimum method of catching the hairs to be shaved and feeding them into the cutting area formed by outer and inner cutter. As the shaving head is moved across the skin surface, the hair-feeding means arranged in advance of the cutting area are able to catch not only hair that rests flat against the skin, but al
REFERENCES:
patent: 1833954 (1931-12-01), Schick
patent: 2181038 (1939-11-01), Wimberger
patent: 2281841 (1942-05-01), Holsclaw
patent: 2284038 (1942-05-01), Bruecker
patent: 2423177 (1947-07-01), Cunliffe
patent: 2629169 (1953-02-01), Kleinman
patent: 2787829 (1957-04-01), Bayne
patent: 4081902 (1978-04-01), Locke
Braun Aktiengesellschaft
Payer Hwei-Siu
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