Baths – closets – sinks – and spittoons – Hair washing machine or device or accessory
Reexamination Certificate
2000-01-03
2001-06-12
Eloshway, Charles B. (Department: 3751)
Baths, closets, sinks, and spittoons
Hair washing machine or device or accessory
Reexamination Certificate
active
06243888
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a hair washer such as those installed in a barbershop.
BACKGROUND OF THE INVENTION
FIG. 3
is an elevation illustrating a construction of a prior art hair washer.
In
FIG. 3
, reference numeral
1
denotes a cabinet. Reference numeral
2
denotes a cistern having an opening
2
f
in the cabinet cistern
2
. Reference numeral
3
denotes a neck receiving part for supporting a nape of a person undergoing hair washing when the head is inserted into the cistern
2
. Reference numeral
5
designates a face cover provided at the cistern
2
in an openable state and having an aperture
5
a
at the central part thereof. This face cover
5
covers the head of the person undergoing hair washing when the person inserts his head into the cistern
2
. This face cover
5
prevents hot water from spouting to the face of a person during the hair washing. Reference numeral
6
denotes a drawable hand shower which is used for washing off hairs, shampoo agent, or conditioner agent which may have attached to the cistern
2
, or in finishing the hair washing. Numeral
7
denotes a shampoo tank for storing shampoo agent. Numeral
8
designates a rinse tank for storing conditioner agent.
FIGS. 4 and 5
are a longitudinal sectional view and a plan view, respectively, schematically illustrating a construction of a prior art hair washer.
FIG. 6
is a longitudinal cross-section in line II—II of the tank of the hair washer.
In these figures, the same reference numerals designate the same or corresponding portions in FIG.
3
.
As shown in the figures, there are disposed shower heads S
1
-S
12
and nozzle heads N
1
-N
6
at both of side walls
2
a,
rear wall
2
b
and bottom wall
2
d
of the cistern
2
. The shower heads S
1
-S
12
spout hot water taken from the hot water reserve tank (not shown) in the cabinet
1
. The nozzle heads N
1
-N
6
spout hot water mixed with shampoo agent or conditioner agent, which is obtained by mixing the shampoo agent or conditioner agent taken from the shampoo tank
7
or the rinse tank
8
, respectively and the hot water taken out from the hot water reserve tank(not shown) in the cabinet
1
.
Also provided is a step at the bottom wall
2
d
of the cistern
2
, which means that the bottom wall
2
d
is shallower on the side of the neck receiving part
3
and deeper at the rear side. Shower heads S
1
, S
4
, S
6
, S
8
, S
9
and nozzle heads N
3
-N
5
are disposed at the shallow part of the bottom wall
2
d
at the side of the neck receiving part
3
of the cistern
2
, while a drain outlet
4
is disposed at the deep part of the bottom wall
2
d
at the rear side of the cistern
2
.
The washing water, such as hot water spouted out from the shower heads S
1
-S
12
and the nozzle heads N
1
-N
6
provided at the respective walls of plates of the cistern, is made to flow on the bottom wall
2
d
of the cistern
2
and is drained out from the drain outlet
4
provided at the bottom wall
2
d
at the rear side of the cistern
2
.
A description is given of the operation of the prior art hair washer having such a construction.
The hair washing operation is started in a state where the person undergoing hair washing in the cistern
2
while lying on their back. To begin, hot water is spouted out from the shower heads S
1
-S
12
for a predetermined period of time.
Next, the hair is shampooed using hot water spouted out from the shower heads S
1
-S
12
as well as hot water mixed with shampoo agent spouted out from nozzle heads N
1
-N
6
.
After the shampooing process is completed, the hair is rinsed. At this time, the spouting of hot water mixed with shampooing agent from nozzle heads, N
1
-N
6
is stopped and rinsing of the shampooing agent attached to the head hairs is performed by hot water spouted out from the shower heads S
1
-S
12
.
Next, the hair is conditioned using hot water spouted out from the shower heads S
1
-S
12
as well as hot water mixed with conditioner agent spouted out from nozzle heads N
1
-N
6
.
Next, the hair is given a final rinse by stopping the spouting of hot water mixed with conditioner agent from the nozzle heads N
1
-N
6
and washing out the conditioner agent in the hair by using hot water spouted from the shower heads S
1
-S
12
.
In the above-described hair washing process, both the hot water spouted alone from the shower heads S
1
-S
12
and the hot water mixed with shampoo agent or conditioner agent spouted from the nozzle heads N
1
-N
6
flow on the bottom wall
2
d
of the cistern
2
and are drained out from the drain outlet
4
provided at the bottom wall
2
d
at the rear side of the cistern
2
.
However, when the above described hair washing is carried out by the prior art hair washer, the washing water spouted alone from the washing nozzles flows above the spouting aperture of the washing nozzles provided at the bottom wall of the cistern to be drained out from the drain outlet. Thus, the pressure of the washing water spouted on the rear part of the person's head from the washing nozzle provided at the bottom wall of the cistern, is reduced, and the rear of the head of the person undergoing hair washing cannot be sufficiently washed.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a hair washer capable of keeping the spouting pressure of the washing water spouting from the washing nozzle provided at the bottom wall of the cistern at a constant pressure during the hair washing process.
This and other objects and advantages of the present invention will become apparent from the detailed description and specific embodiments described in detail herein. The description and embodiments disclosed herein are provided only for illustration since various additions and modifications within the spirit and scope of the invention will be apparent to those of skill in the art from the detailed description.
According to a first aspect of the present invention, a hair washer comprising a cistern into which the head part of a person under hair washing can be inserted, a plurality of washing nozzles for spouting out washing water, provided at both of the side wall surfaces, the rear wall surface, and the front part of the bottom wall of the cistern, a drain outlet for draining out washing water spouted out from the washing nozzle, provided at the rear part of the bottom wall of the cistern; a groove extending toward the drain outlet provided at gaps between the plurality of washing nozzles provided at the front part of the bottom wall of the cistern, and the washing water spouted out from the washing nozzle being exhausted out from the drain outlet passing through the groove provided at the bottom wall of the cistern.
REFERENCES:
patent: 3965496 (1976-06-01), Grelle
patent: 4651361 (1987-03-01), Nolan
patent: 4901378 (1990-02-01), Reddell
patent: 5450636 (1995-09-01), Graeber
Burr & Brown
Eloshway Charles B.
Oohiro Works Ltd.
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