Cutlery – Razors – With cooperating shearing blades
Patent
1992-10-13
1994-07-12
Seidel, Richard K.
Cutlery
Razors
With cooperating shearing blades
30200, B26B 1900, B26B 1920
Patent
active
053276485
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an electric hair cutting apparatus, with a shearing head as well as a spacer comb which is adapted to be seated on the shearing head for sliding contact with the skin surface to be treated and is adjustable to various positions with regard to the forward edge of the shearing head, as well as with a sliding switch for enabling and disabling the drive of the hair cutting apparatus, with the spacer comb and the sliding switch being provided with engageable coupling means, and with further positions being provided in addition to the "On" and "Off" positions of the sliding switch.
A hair cutting apparatus of this type is known from U.S. Pat. No. 4,669,189. To turn off the drive, the user is required to return the sliding switch to the "Off" position "O", independent of the length of the cut just made. As a result, also the spacer comb is automatically returned to the position involving the shortest cutting length, so that the user, during the next application, is unable to determine the length of the previous hair cut.
It is therefore an object of the present invention to construct a hair cutting apparatus of the type initially referred to in a manner enabling the user to recognize a cutting length once selected as being appropriate when using the cutter in a subsequent operation.
This object is accomplished in that a preselector slide means is provided which is adjustable such that the drive of the hair cutter is not energized until a predetermined position is set.
Advantageous embodiments will become apparent from the subclaims.
The present invention will be described in more detail in the following with reference to an embodiment illustrated in the accompanying drawings.
In the drawings,
FIG. 1 is a perspective view of a hair cutting apparatus;
FIG. 2 is a front view of the hair cutting apparatus, showing the spacer comb in its seated position;
FIG. 3 is also a front view of the hair cutting apparatus, with the spacer comb removed;
FIG. 4 is a side view of the hair cutting apparatus of FIG. 3, shown partially in longitudinal section;
FIG. 5 is a schematic of the basic coupling structure between the hair cutting apparatus and the spacer comb seated on its shearing head;
FIG. 6 is a view of the ratchet gear of the hair cutting apparatus of the invention for positioning the spacer comb at different relative distances to the forward edge of the shearing head;
FIG. 7 is a schematic of an embodiment; and
FIG. 8 is a side view of a hair cutting apparatus equipped with a preselector slide means.
The mode of function of the hair cutting apparatus will first be described without the preselector slide means provided.
As becomes apparent from FIGS. 1 to 4, the hair cutting apparatus 1 comprises substantially a slim, haptical body having a shearing head 2 obstructed in FIGS. 1 and 2 by a spacer comb 3 seated on the shearing head 2. The spacer comb 3 operates to maintain a predetermined distance of the forward edge 4 of the shearing head 2 comprised of a fixed shear plate 5 and a cutting element 6 reciprocating thereon, relative to the skin surface to be treated as, for example, the scalp of a person whose hair is to be cut, with the spacer comb being adjustable to different positions on the shearing head 2 relative to the body 7 of the hair cutting apparatus 1, to be explained later as the description proceeds.
The spacer comb 3, being a hollow body, embraces the body 7 of the hair cutting apparatus 1 in the region of its shearing head 2 on all four sides, with tooth-shaped supports 8 integrally formed on the comb enabling the hair to be cut to extend therebetween up to the shearing head 2, to be eventually cut off by its cutting element 6. The remaining length of the hair after the cut corresponds to the distance between the forward edge of the tooth-shaped supports 8--when in contact with the skin surface--and the forward or cutting edge of the shearing head 2 or its associated cutting element 6, this distance being variable in the present hair cutting apparatus 1, as already mentioned.
For an
REFERENCES:
patent: 3264735 (1966-08-01), Du Churme
patent: 3287805 (1966-11-01), Du Charme
patent: 3426428 (1969-02-01), Acciani
patent: 4669189 (1987-06-01), Ullmann
patent: 5105541 (1992-04-01), Messinger et al.
Braun Aktiengesellschaft
Heyrana Sr. Paul M.
Seidel Richard K.
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