Baths – closets – sinks – and spittoons – Means for spraying user
Reexamination Certificate
2000-08-29
2002-07-02
Fetsuga, Robert M. (Department: 3751)
Baths, closets, sinks, and spittoons
Means for spraying user
C239S069000, C239S556000, C601S169000
Reexamination Certificate
active
06412125
ABSTRACT:
TECHNICAL FIELD
The present invention relates to head and face washing apparatus, shower nozzle with hood, comb type scalp washing tool, and head washing shower brush, and more particularly to head and face washing apparatus, shower nozzle with hood, comb type scalp washing tool, and head washing shower brush designed to prevent the liquid from scattering out of the washing area during washing.
BACKGROUND ART
In the bathroom, beauty parlor, hairdressing salon, and medical and care fields, various tools have been proposed so far as means for washing the head or other parts of the body.
A first prior art is a head washer disclosed in Japanese Laid-open Patent No. 7-255523.
FIG. 37
is a schematic structural diagram showing this head washer. The head washer shown in
FIG. 37
comprises a washing fluid storage tank
501
storing about 1 to 2 liters of washing fluid, a fluid feed pump
503
consisting of a motor
503
a
and a pressurizing unit
503
b
connected to the washing fluid storage tank
501
through a feed pipe
502
, a main body
500
having a heater
504
for heating the washing fluid, and a nozzle body
506
connected at a free end of a fluid feed pipe
505
connected to the fluid feed pump
503
for ejecting the washing fluid supplied from the fluid feed pump
503
. The outside of the nozzle body
506
is surrounded by a cover
508
having a slit (notch)
507
for dripping water.
In the head washer shown in
FIG. 37
, with the opening end of the cover
508
of the nozzle body
506
pressed to the head, the head can be washed by ejecting the washing fluid from the nozzle body
506
. According to this head washer, since the nozzle body
506
is surrounded by the cover
508
, the washing fluid bouncing back from the head hits against the inner wall of the cover
508
and falls, and scattering of the washing fluid can be prevented. Moreover, since the water dripping slit
507
is provided in the opening edge of the cover
508
, the washing fluid in the cover
508
can be discharged outside through the slit
507
, and the washing fluid is not collected much inside of the cover
508
.
Although not shown, the nozzle body
506
incorporates a rotating element which is rotated by the pressure of the washing fluid, and it is designed so that the washing fluid flows into the nozzle holes of the nozzle body
506
, that is, the ejection pressure of the washing fluid may be changed automatically. By disposing such rotating element in the nozzle body
506
, the ejection pressure of the washing fluid may be changed, and the stimulation given to the head is varied, which makes it comfortable for the user.
A second prior art is a comb type scalp washing tool for discharging the fluid supplied through the fluid feed passage provided in the comb from plural discharge ports provided in the comb teeth. As an application of this comb type scalp washing tool, for example, the comb of such structure is mounted on the opening of a bottle container containing fluid such as hair liquid or hair coloring.
A third prior art is an oscillating hair washer disclosed in Japanese Laid-open Utility Model No. 6-52558.
FIG. 38
shows an appearance of this oscillating hair washer. The oscillating hair washer has an oscillating source and dry battery contained in a waterproof handle
600
, and feeble vibration is transmitted from the oscillating source to the bristles
602
of an oscillating brush
601
. When using a shampoo in this oscillating hair washer, by the force of the bristles
602
hitting against the scalp and hair root, and the rubbing action by vibration with shampoo, stains in the hair root and scalp can be washed away.
A fourth prior art is a hair washing brush disclosed in Japanese Laid-open Utility Model No. 6-72504. FIG.
39
(
a
) is a side view of this hair washing brush, and FIG.
39
(
b
) is a bottom view showing the configuration of brush protrusions of this hair washing brush. This hair washing brush is composed by forming brush protrusions
701
made of synthetic resin on a brush base
700
, and the density of the brush protrusions
701
gradually increases from the leading end to the rear end of the brush base
700
along the moving direction when washing (the arrow direction in the drawing). With this hair washing brush, the hair staining can be removed securely with water only, not using shampoo.
However, in the first prior art, by covering the nozzle body, the washing fluid hitting against the head is prevented from scattering outside, but in order to obtain the effect of prevention of scatter of washing fluid, the cover opening end must be pressed against the head while washing, and since the hair is pressed down by the cover, the washing fluid does not hit against the scalp directly. Therefore, in the first prior art, a sufficient washing effect could not be obtained. In addition, since the cover is fitted against the head during use, it is not comfortable, and there is a sanitary problem.
Also in the first prior art, the nozzle body incorporates the rotating element which changes the ejection pressure of washing fluid to change the stimulation given to the head, but this rotating element is rotated by receiving pressure of the washing fluid before the nozzle holes and changes the ejection pressure of washing fluid, and it causes loss in the entire ejection pressure in order to rotate this rotating element.
Also in the first prior art, since the cover and rotating element are disposed on the nozzle body, the nozzle body is large in size and increases in weight, and it is not convenient to use.
Also in the first prior art, although scatter of water is prevented by the cover provided in the nozzle body, the water collected inside the cover is discharged through the slit (notch), it is difficult to keep balance between the cover slit size and discharge water volume, and it is not convenient to use. More specifically, for example, depending on the water discharge volume from the nozzle body, the water may be collected in the cover and the discharge water pressure may be weak, or the washing effect is lowered. If the slit size is increased for discharging, depending on the discharge water pressure from the nozzle body, water may splash out from the slit and the role of the cover is lost, or if the discharge water pressure from the nozzle body is adjusted to such an extent as not to splash water, the washing effect is lowered.
In the second prior art, the fluid discharged on the scalp bounces back, and scatters about. To eliminate such problem, in the comb type scalp washing tool of the second prior art, the cover as in the first prior art may be used to prevent scattering of fluid, but since it is impossible to change the height of the cup-shaped cover in the vertical direction to the scalp surface, when washing the scalp while combing the hair, it is difficult to follow up the uneven surface of the scalp depending on bulkiness and thickness of the hair. In addition, the cup-shape cover hinders, and the combing depth and comb angle cannot be changed, and the degree of freedom is sacrificed.
When the oscillating hair washer and hair washing brush of the third prior art and fourth prior art are used in washing of the scalp, the washing fluid is blocked by the hair and does not reach up to the scalp, and sufficient washing effect is not obtained. Besides, there is no means for ejecting by receiving supply of fluid, rinsing while brushing is not enabled. In addition, if such means for ejecting by receiving supply of fluid is provided, it requires extra means for preventing bouncing of the fluid ejected toward the scalp.
The invention is devised in the light of the above problems, and it is hence an object thereof to present a head and face washing apparatus capable of preventing scattering of washing fluid by other method than cover.
It is also an object to present a head and face washing apparatus capable of enhancing the washing efficiency while preventing scattering of washing fluid by other method than cover.
It is other object to present a head and face washing apparatus capable o
Ito Kazumasa
Takeda Nobuhiro
Tanaka Mikito
Yokoi Toshiko
Fetsuga Robert M.
Foley & Lardner
Ricoh Elemex Corporation
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