Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2001-12-05
2004-04-20
Jeffery, John A. (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C392S415000, C034S096000, C034S266000
Reexamination Certificate
active
06724984
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an barber/beauty instrument for spraying a warm/hot wind to hair in order to promote permanent hair waving, hair dyeing, hair drying in hair washing at a barber/beauty shop, and more particularly to a hair treatment promoting apparatus for applying infrared rays to and heating the hair in the permanent hair waving, hair dyeing, hair drying in hair washing, etc. at the barber/beauty shop.
2. Description of the Related Art
Traditionally, such a barber/beauty instrument as described above was placed on a moving stand, and moved to the position where it is set at the hair of a subject whom an operator gives treatment. Inherently, in such a kind of barber/beauty instrument, a power feed code is directly wired to the barber/beauty instrument body. Particularly, the barber/beauty instrument which is rotated around the hair for uniform applying of infrared rays was attached to a ceiling, wall or moving stand.
Since the above instrument attached to the moving stand must be positioned at a nearer position to the hair, it was placed at the front position of the moving stand.
In a conventional moving stand on which the barber/beauty instrument is placed, as shown in
FIG. 25
, a main pole
20
is extended upright from a leg stand
21
equipped with movable casters
22
. The main pole
20
is equipped with an ascending/descending rod
1
which is balanced by a spring. The rod
1
can be locked by a handle
23
.
A barber/beauty instrument body
25
is attached to the moving stand structured as described above so that an applying unit
24
equipped with a rotatable heater for radiating infrared rays rotates around the hair.
An explanation will be given of the internal structure of the conventional barber/beauty instrument body
25
. A stem stand
26
is placed on the ascending/descending rod
1
. A bracket
27
is attached to the stem stand
26
.
A driving source
28
such as a motor, a hydraulic machine, etc. is attached to the upper portion of the bracket
27
. A gear
28
a
is attached to the driving source
28
. The gear
28
a
is engaged with a gear
29
equipped with a rotary shaft
30
.
The rotary shaft
30
is rotatably attached to a bracket via a bearing
31
therebetween. A rotary plate
33
is attached to the rotary shaft
30
. An applying unit
24
equipped with a heat for applying infrared rays is attached to the rotary plate
33
.
In the above configuration, when the driving source
28
is driven, the rotary shaft
30
is rotated through the gears
28
a
and
29
. Thus, the applying unit
24
is rotated around the hair so that the infrared rays are uniformly applied to the hair.
As described above, in order to set the barber/beauty instrument unit
25
at the position close to the hair, the applying unit
24
having the heater is located at the front of the moving stand. In addition, the main components such as the driving source
28
and the applying unit
24
are incorporated at the top in the body
25
so that the barber/beauty instrument has a top-heavy structure with the center of gravity at a forward position.
As understood from the above description, the barber/beauty instrument which is relatively heavy is placed on the moving stand. Since the barber/beauty instrument must be located in the vicinity of the hair of the subject, it is located at the forward potion of the moving stand. This may present a problem that when the instrument is moved, if there is a protrusion on a floor, the moving stand may fall down owing to the protrusion; and when the head of the barber/beauty instrument body is moved by pushing, the weight is applied to the top so that it is placed in an unstable state.
A prior art of the hair treatment promoting apparatus is disclosed in Japanese Patent Publ. No. 4-646 filed by the applicant of this application. In the hair treatment promoting apparatus according to this prior art in which a reflector equipped with a heat for radiating infrared rays is rotated so that the infrared rays are radiated along the top, rear and both sides of the head, a non-contact thermometer for detecting the hair temperature of the subject using the infrared rays from the head of the subject is provided.
In the above prior art, since the non-contact thermometer remote from the hair measures the quantity of the infrared rays radiated from the hair to detect the temperature of the hair, when the subject shakes the head to approach or leave the heater, the temperature of the heater is automatically controlled so that the hair is uniformly heated. When the head approaches or leaves excessively the heater, the temperature cannot be controlled, a warning is issued by sound or light.
Meanwhile, in order to detect the temperature of the hair accurately, when the treatment is started, the hair treatment promoting apparatus equipped with the non-contact thermometer must be located in the vicinity of the head. However, it is difficult to position the thermometer accurately.
Further, as the case may be, an operator forgets that temperature control is being executed while the head temperature is measured using the non-contact thermometer because the operator cannot see the measurement by the non-contact thermometer. For safety, the heater is apt to be set slightly above the head. Therefore, the non-contact thermometer is likely to deviate from the head so that it measures a lower temperature. Accordingly, the heater will heat the head excessively.
Further, in the structure of the hair treatment promoting apparatus wherein the heater formed in a disk-shape in section is attached to a reflecting plate, the heater is passed through a glass in a doughnut shape having a slightly larger diameter than that of the heater. The outer periphery of the glass is wound with a lengthy steel wire, and the remaining steel wire is secured to an attaching hole made in the reflecting plate.
In the above prior art, since there is a gap between the heater and the glass, when the heater is rotated by the motor, contact sound of the heater and the glass is generated. When the heater is heated to a high temperature, its length becomes long by thermal expansion. As a result, metallic sound owing to the contact of the steel wire with the section of the reflecting plate is generated. Further, the insulating distance due to the distortion by the thermal expansion varies, which results in poor insulation.
In the hair treatment promoting apparatus, the reflecting plate is formed in a bowl in section. The infrared rays radiated from the heater may be concentrated partially. The reflecting plate is attached to a rotary power-feeding device for the heater in an electrically non-insulated state.
In the above prior art, the infrared rays radiated from the heater are partially concentrated so that the head of the person is heated partially. Therefore, the subject may feel partial hotness and uncomfortable. Further, the radiating efficiency is bad to take a long time to promote the hair treatment.
Further, since the reflecting plate is not electrically insulated from the rotary power-feeding device, a current flows through the reflecting plate so that if the operator touches the reflecting plate, he/she may get an electrical shock.
In the conventional hair treatment promoting apparatus, a power feeding device for passing a current through the heater is shown in FIG.
27
. This power feeding device includes a brush supporting plate a which is rotated by a motor for rotating the refractor, a flat spring
b
which is an arched movable electrode plate with a center portion attached to the brush supporting plate a and a ring-shaped fixed electrode c which is in slidable contact with the brushes b
1
which are metals for sliding bonded to both ends of the flat spring
b
.
Incidentally, d denotes a lead wire connected to the brush b and e denotes a lead wire connected to the fixed electrode c. It should be noted that at least two flat springs
b
and fixed electrodes c are provided.
In the power feeding device, when the motor is rotated in order to rot
Horio Tomofumi
Ito Keiji
Kakuya Yuji
Katsumata Masakazu
Mitsui Hironori
Armstrong Kratz Quintos Hanson & Brooks, LLP
Jeffery John A.
Takara Belmont Corporation
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