U.S. patent application number 12/523152 was filed with the patent office on 2010-01-14 for pumping device with collapsible nozzle.
Invention is credited to Young-Joo Lee.
Application Number | 20100006606 12/523152 |
Document ID | / |
Family ID | 39636082 |
Filed Date | 2010-01-14 |
United States Patent
Application |
20100006606 |
Kind Code |
A1 |
Lee; Young-Joo |
January 14, 2010 |
PUMPING DEVICE WITH COLLAPSIBLE NOZZLE
Abstract
There are provided a pumping device for dispensing the contents
contained in a container body by pressing a pressurizing button.
The pumping device comprises a nozzle which is pivotable by a hinge
installed at the nozzle and the pressurizing button. The
pressurizing button comprises: a pressing plate, a wall extended
downward from the pressing plate, and a nozzle receiving groove
formed on the wall and for receiving the nozzle when it is in a
closed position. In accordance with the present invention, since
the nozzle is foldable, the pumping device is conveniently
transported and distributed, and since the nozzle is inserted into
the nozzle receiving groove and is not exposed outside, the nozzle
is prevented from being unintentionally in an open position by an
unnecessary external force.
Inventors: |
Lee; Young-Joo; (Anyang-si,
KR) |
Correspondence
Address: |
Jae Y. Park
Kile, Goekjian, Reed & McManus, PLLC, 1200 New Hampshire Ave. NW, Suite
570
Washington
DC
20036
US
|
Family ID: |
39636082 |
Appl. No.: |
12/523152 |
Filed: |
January 16, 2007 |
PCT Filed: |
January 16, 2007 |
PCT NO: |
PCT/KR2007/000253 |
371 Date: |
July 14, 2009 |
Current U.S.
Class: |
222/383.1 |
Current CPC
Class: |
B05B 11/0094 20130101;
B05B 11/3023 20130101 |
Class at
Publication: |
222/383.1 |
International
Class: |
B65D 47/34 20060101
B65D047/34 |
Claims
1. A pumping device including a foldable nozzle, which comprises: a
container body for containing the contents, a pumping unit
positioned inside the container body and sucking/pumping the
contents, and a pressurizing button providing a pressurizing force
to the pumping unit and including a nozzle discharging the
contents, wherein a hinge member is installed at the nozzle and the
pressurizing button so that the nozzle is foldable, characterized
by the pressurizing button comprising: a pressing plate, a wall
extended downward from the pressing plate, and a nozzle receiving
groove formed on the wall and receiving the nozzle being in a
closed position.
2. The pumping device according to claim 1, wherein the pumping
unit comprises: a fixing cap having an outer cylindrical body, an
inner cylindrical body, and a guide groove formed between the outer
cylindrical body and the inner cylindrical body, wherein the wall
of the pressurizing button is inserted into the guide groove.
3. The pumping device according to claim 1, characterized in that,
when the nozzle is in the closed position, the pressurizing button
is prevented from being pressed so that the contents are
interrupted from being unintentionally released, and when the
nozzle is in an open position, the pressurizing button is capable
of being pressed so that the contents are discharged.
4. The pumping device according to claim 1, wherein the nozzle
comprises a raise (R).
5. The pumping device according to claim 1, wherein the nozzle
comprises a finger receiving groove.
6. The pumping device according to claim 1, wherein the
pressurizing button comprises: a stopper to prevent the nozzle from
being excessively deeply inserted into the nozzle receiving
groove.
7. The pumping device according to claim 1, wherein the nozzle
comprises: a projection formed at an end of the nozzle.
8. The pumping device according to claim 1, wherein the hinge
member comprises: a hinge shaft formed at the nozzle, and a hinge
aperture formed at the pressurizing button.
9. The pumping device according to claim 1, wherein the hinge
member comprises: a hinge aperture formed at the nozzle, and a
hinge shaft formed at the pressurizing button.
10. The pumping device according to claim 3, wherein, when the
nozzle is in the closed position, an end of the nozzle is caught by
a top side of the outer cylindrical body or a top side of the inner
cylindrical body, so that the pressing operation of the
pressurizing button is prevented.
11. The pumping device according to claim 3, wherein, when the
nozzle comprises the raise (R) and is in the closed position, the
raise (R) is caught by the top side of the outer cylindrical body,
so that the pressing operation of the pressurizing button is
prevented.
12. The pumping device according to claim 3, wherein, when the
nozzle comprises the projection formed at its end and is in the
closed position, the projection is caught by the top side of the
outer cylindrical body, so that the pressing operation of the
pressurizing button is prevented.
13. The pumping device according to claim 2, characterized in that,
when the nozzle is in the closed position, the pressurizing button
is prevented from being pressed so that the contents are
interrupted from being unintentionally released, and when the
nozzle is in an open position, the pressurizing button is capable
of being pressed so that the contents are discharged.
14. The pumping device according to claim 2, wherein the nozzle
comprises a raise (R).
15. The pumping device according to claim 2, wherein the nozzle
comprises a finger receiving groove.
16. The pumping device according to claim 2, wherein the
pressurizing button comprises: a stopper to prevent the nozzle from
being excessively deeply inserted into the nozzle receiving
groove.
17. The pumping device according to claim 2, wherein the nozzle
comprises: a projection formed at an end of the nozzle.
18. The pumping device according to claim 13, wherein, when the
nozzle is in the closed position, an end of the nozzle is caught by
a top side of the outer cylindrical body or a top side of the inner
cylindrical body, so that the pressing operation of the
pressurizing button is prevented.
19. The pumping device according to claim 13, wherein, when the
nozzle comprises the raise (R) and is in the closed position, the
raise (R) is caught by the top side of the outer cylindrical body,
so that the pressing operation of the pressurizing button is
prevented.
20. The pumping device according to claim 13, wherein, when the
nozzle comprises the projection formed at its end and is in the
closed position, the projection is caught by the top side of the
outer cylindrical body, so that the pressing operation of the
pressurizing button is prevented.
Description
TECHNICAL FIELD
[0001] The present invention relates to a pumping device which is
used to dispense the contents contained in a container body when a
pressurizing button is pressed and, more particularly, to a pumping
device including a foldable nozzle which is inserted into a nozzle
receiving groove formed in a pressurizing button when the nozzle is
in a closed position, so that the nozzle is prevented from being in
an open position by an unnecessary external force.
BACKGROUND ART
[0002] In general, to store or distribute the contents, such as
liquid-type, paste-type or gel-type contents, the contents are
contained in a container using a pumping device. Specially, the
contents having viscosity, such as cream, lotion, rinse, shampoo,
hair gel and the like, are usually contained in a
pressurization-type pumping device by which the contents are pumped
when a pressurizing button is pressed.
[0003] In a pressurization-type pumping device, when a pressurizing
button is pressed by a user, the contents of the container are
pumped by a pressurizing force, to be dispensed, in a predetermined
amount, through a nozzle. FIGS. 1 through 3 illustrate conventional
pressurization-type pumping devices.
[0004] In FIGS. 1 and 2, the pumping device generally comprises: a
container body 10 for containing the contents; a pumping unit 20
positioned at an upper part of the container body 10, for
sucking/pumping the contents by a pressurizing force; and a
pressurizing button 30 for providing the pressurizing force to the
pumping unit 20 and including a nozzle 35 for discharging the
contents. The structure of the pumping unit 20 has been applied to
the products as the relevant techniques have been variously
attempted.
[0005] FIG. 2 illustrates the conventional structure of the pumping
unit 20 which is most generally used.
The operation of the pumping unit 20 will be briefly described as
follows:
[0006] When a user presses the pressurizing button 30 using his/her
hand, a pressurizing force is transferred to a piston member 24, so
that an elastic member 23 is shrunken. Then, the contents filling a
cylinder 21 are moved up, along a guide tube 25, so as to be
dispensed, in a predetermined amount, through the nozzle 35.
[0007] When the pressurizing force is removed, the piston member 24
is moved up by the elasticity of the elastic member 23 and sucks
the contents of the container body 10, so that the cylinder 21 is
filled with the contents. In FIG. 2, reference number 22 is used to
indicate a ball valve for closing an opening of the cylinder 21,
for preventing the contents filling the cylinder 21 from moving
down when the pressurizing button 30 is pressed. Reference number
29 indicates a suction tube operatively connected to the cylinder
22, for sucking the contents contained in the container body
10.
[0008] The aforementioned pressurization-type pumping device has
the advantage in that the contents are easily dispensed, in a
predetermined amount, by pressing the pressurizing button 30.
[0009] However, in the conventional pumping device illustrated in
FIGS. 1 and 2, since the nozzle 35 is formed integrally with the
pressurizing button 30 and is fixedly protruded horizontally, it
needs much space upon distribution. Moreover, since the
conventional pumping device has no special locking unit though the
nozzle 35 is operatively connected to the guiding tube 25, when an
unnecessary force is applied to the pumping device which is
transported or stored and the pressurizing button 30 is pressed,
the contents are unintentionally released to be wasted or any other
foreign substance is likely to enter through the nozzle 35.
Therefore, a finish cap is additionally used to prevent the
contents from being unintentionally released and to prevent any
foreign substance from entering into the container. However, in
this case, the finish cap which is additionally formed increases
the cost and causes the inconvenience of opening and closing the
finish cap in use.
[0010] Therefore, Korean Utility Model Registration No. 281556
provides a pumping device to prevent the contents from being
unintentionally released, prevent any foreign substance from
entering, and to reduce a space needed upon distribution. For these
purpose, the pumping device is realized by using a nozzle 35 which
is foldable by a hinge 40, wherein an end of the nozzle 35 is
supported at a top side 20a of a pumping unit 20, as shown in FIG.
3.
[0011] However, in the pumping device of the aforementioned prior
art, as illustrated in FIG. 3, since the nozzle 35 is exposed
outside, it is likely to be easily in an open position.
DISCLOSURE
Technical Problem
[0012] Therefore, the present invention has been made to solve the
above problems, and it is an object of the present invention to
provide a pumping device which includes a foldable nozzle to be
inserted into a nozzle receiving groove formed in a pressurizing
button so that the nozzle is not exposed outside after it is in a
closed position, and which is conveniently transported and
distributed and has improved usability by preventing the nozzle
from being in an open position by an unnecessary external
force.
Technical Solution
[0013] In accordance with the present invention, the above and
other objects can be accomplished by a pumping device including a
foldable nozzle, which comprises a container body for containing
the contents, a pumping unit positioned inside the container body
and for sucking/pumping the contents, and a pressurizing button for
providing a pressurizing force to the pumping unit and including a
nozzle for discharging the contents, wherein a hinge member is
installed in the nozzle and the pressurizing button so that the
nozzle is foldable, characterized in that the pressurizing button
comprises: a pressing plate, a wall extended downward from the
pressing plate, and a nozzle receiving groove formed on the wall
and for receiving the nozzle when it is in a closed position.
[0014] Further, the pumping unit may comprise a fixing cap having
an outer cylindrical body and an inner cylindrical body, wherein a
guide groove for receiving the wall of the pressurizing button is
formed between the outer cylindrical body and the inner cylindrical
body.
[0015] Further, when the nozzle is in a closed position, the
pressurizing button is inactivated with respect to its pressing
operation, so that the contents are prevented from being
unintentionally released, and when the nozzle is in an open
position, the pressurizing button is activated with respect to its
pressing operation, so that the contents are discharged. For
example, when the nozzle is in the closed position, an end of the
nozzle may be caught by a top side of a fixing cap of the pumping
unit so that the pressing operation of the pressurizing button is
prevented. Alternatively, the pressing operation of the
pressurizing button may be prevented by a projection artificially
formed at the end of the nozzle.
ADVANTAGEOUS EFFECTS
[0016] In accordance with the pumping device of the present
invention, since the nozzle is foldable, it is conveniently
transported and distributed. Furthermore, when the nozzle is in the
closed position, since the nozzle is inserted into the nozzle
receiving groove, it is not exposed outward so that it is prevented
from being unintentionally in the open position by an unnecessary
external force. Furthermore, since the nozzle is in the closed
position, the pressing operation of the pressurizing button is
inactivated, so that the contents are prevented from being
unintentionally released by the unnecessary external force when it
is transported or stored.
DESCRIPTION OF DRAWINGS
[0017] These and other aspects and advantages of the present
invention will become apparent and more readily appreciated from
the following description of the embodiments, taken in conjunction
with the accompanying drawings, in which:
[0018] FIG. 1 is a perspective view of a first conventional
pressurization-type pumping device;
[0019] FIG. 2 is a sectional view of the first conventional
pressurization-type pumping device of FIG. 1;
[0020] FIG. 3 is a sectional view of a second conventional
pressurization-type pumping device;
[0021] FIG. 4 is a perspective view of a pumping device according
to an embodiment of the present invention;
[0022] FIGS. 5 and 6 are sectional views of the pumping device of
FIG. 4 being operated, in which FIG. 5 illustrates the pumping
device being pressed and FIG. 6 illustrates the pumping device
being released from a pressurizing force;
[0023] FIG. 7 is an exploded perspective view of parts of
constituents of a pumping unit of the pumping device of FIG. 4;
[0024] FIG. 8 is an exploded perspective view of FIG. 4;
[0025] FIG. 9 is a partial exploded perspective view of a
pressurizing button of the pumping device of FIG. 4;
[0026] FIG. 10 is a sectional view of FIG. 4, illustrating a nozzle
being in a closed position; and
[0027] FIGS. 11 and 12 illustrate the constitution of a pumping
device according to another embodiment of the present invention, in
which FIG. 11 illustrates a nozzle being in an open position and
FIG. 12 illustrates the nozzle being in a closed position.
MODE FOR INVENTION
[0028] Hereinafter, embodiments of the present invention will be
described in detail with reference to the accompanying drawings.
This invention may, however, be embodied in many different forms
and should not be construed as being limited to the embodiments set
forth herein.
[0029] FIG. 4 is a perspective view of a pumping device according
to an embodiment of the present invention. FIGS. 5 and 6 are
sectional views of the pumping device of FIG. 4 being operated, in
which FIG. 5 illustrates the pumping device being pressed and FIG.
6 illustrates the pumping device being released from a pressurizing
force. FIG. 7 is an exploded perspective view of parts of
constituents of a pumping unit of the pumping device of FIG. 4.
[0030] With reference to FIGS. 4 through 7, the pumping device
according to the embodiment of the present invention comprises: a
container body 100 for containing the contents; a pumping unit 200
positioned at a upper part of the container body 100 and
sucking/pumping the contents; and a pressurizing button 300 for
providing a pressurizing force to the pumping unit 200 and
including a nozzle 350 for discharging the contents.
[0031] The container body 100 has a general hollow structure for
containing the contents, such as liquid-type, paste-type, gel-type
contents and the like. A material of the container body 100 may use
glass, metal, plastic and others. Preferably, when plastic is used
as the material of the container body, it can be formed in various
shapes, adding an aesthetic feeling.
[0032] The pumping unit 200 receives the pressurizing force
transferred from the pressurizing button 300, to suck the contents
contained in the container body 100 and to pump the contents in a
predetermined amount. Therefore, any pumping unit having the
structure capable of performing these functions will be included
within the scope of the present invention.
[0033] In the embodiment, as illustrated in FIGS. 5 and 6, the
pumping unit 200 comprises: a cylinder 210; a ball valve 220
positioned at an opening of a lower end of the cylinder 210; an
elastic member 230 safely placed on the ball valve 220; a piston
member 240 closely secured to an upper part of the elastic member
230 and transferring the pressurizing force transferred from the
pressurizing button 300 to the elastic member 230; a guide pipe 250
receiving an upper side of the piston member 240 and providing a
channel for allowing the sucked contents; a cut-off valve 260
securely fitted into an inner wall of the cylinder 210; a middle
cap 270 securely combined with the upper part of the cylinder 210
and preventing the piston member 240 and the guide tube 250 and the
like from separating upward; a fixing cap 280 combined with an
opening 120 of the container body 100 when the middle cap 270 is
insertedly installed inside; and a suction tube 290 operatively
connected to the lower end of the cylinder 210 and sucking the
contents of the container body 100. In the drawings, reference
number 295 indicates a sealing ring having elasticity.
[0034] As illustrated in FIGS. 5 through 7, the piston member 240
comprises: a lift bar 241 moving up and down within the guide tube
250; and a head part 242 in a cup shape extended integrally from a
lower end of the lift bar 241 and secured to the elastic member
230. Further, the lift bar 241 has the structure in that three ribs
241a are connected to one another about a central shaft 241b, and a
passage 241c allowing the contents to pass through is formed
between the adjacent ribs 241a.
[0035] A top side of the piston member 240 is inserted into the
guide tube 250 and a lower side thereof is fitted into the cut-off
valve 260. The head part 242 of the piston member 240 is exposed
downward from the cut-off valve 260. Then, when the pressurizing
button 300 is pressed, the piston member 240 moves down so that the
head part 242 thereof is spaced apart from the cut-off valve 260,
to provide a passage F through which the contents move upward (FIG.
5). However, when the pressurizing force applied to the
pressurizing button 300 is removed, the head part 242 is moved up
by the elasticity of the elastic member 230 and is secured to the
cut-off valve 260, so that the contents are interrupted from moving
upward (FIG. 6).
[0036] Accordingly, referring to FIG. 5, when a user presses the
pressurizing button 300, using his/her hand, the pressurizing force
is transferred to the piston member 240 so that the elastic member
23 is shrunken.
[0037] Then, the head part 242 of the piston member 240 is spaced
apart from the cut-off valve 260, so that the passage F is
provided. The contents fills the cylinder 210 through the passage
F, moves up, along the guide tube 250, through the passage 241c
formed between the ribs 241a, and are discharged through the nozzle
350, in the predetermined amount.
[0038] When the pressurizing button 300 is pressed, since the
contents filling the cylinder 210 is interrupted by the ball valve
220 positioned at the lower end of the cylinder 210, the contents
do not flow backward. During the pressurizing process, the amount
of the contents being dispensed is determined by the dimensions
(diameter and length) of the cylinder 210 and the guide tube 250.
Further, the amount of the contents being dispensed may be
determined by the pressurizing force. Specifically, when the
pressurizing force is less, the dispensation amount of the contents
decreases, and when the pressurizing force is greater, the
dispensation amount of the contents increases. When the
pressurizing force is removed, the piston member 240 is moved up by
the elasticity of the elastic member 230 and therefore, a sucking
force is generated, as illustrated in FIG. 6.
[0039] The sucking force opens the ball valve 220 and sucks the
contents of the container body 100 through the suction tube 290,
thereby filling the cylinder 210 with the contents.
[0040] As described above, the structure and operative principles
of the pumping unit 200 have been described with reference to the
embodiment of the present invention. Therefore, the pumping unit
200 includes a conventional structure thereof.
[0041] FIG. 8 is an exploded perspective view of FIG. 4, and FIG. 9
is a partial exploded perspective view of the pressurizing button
of the pumping device of FIG. 4.
[0042] With reference to FIGS. 8 and 9, the pressurizing button 300
has at least one or more nozzles 350. The nozzle 350 is an
independent member from the pressurizing button 300 and is
connected to the pressurizing button 300 so as to be pivotable.
[0043] Specifically, a hinge member 400 is installed at the nozzle
350 and the pressurizing button 300. The nozzle 350 is attachably
and detachably connected to the pressurizing button 300 so as to be
pivoltable by the hinge member 400.
[0044] The nozzle 350 is freely in a closed position by the folding
movement. Therefore, when the hinge member has the structure of
allowing the nozzle to be freely in the closed position, such hinge
member can be used for the present invention.
[0045] In accordance with the embodiment of the present invention,
as illustrated in FIG. 9, the hinge member 400 comprises a hinge
shaft 420 formed at the nozzle 350 so as to protrude; and a hinge
aperture 440 formed on the pressurizing button 300 so that the
hinge shaft 420 is pivotably fitted into the hinge aperture
440.
[0046] However, the hinge aperture 440 may be formed at the nozzle
350 and the hinge shaft 420 being inserted into the hinge aperture
440 may be formed at the pressurizing button 300.
[0047] In the present application, as illustrated in FIGS. 8 and 9,
the pressurizing button 300 comprises: a pressing plate 310; a
cylindrical wall 320 extended downward from the pressing plate 310;
and an outflow tube 330 extended downward from the center of the
pressing plate 310 so as to have a vertical passage 335 through
which the contents are discharged.
[0048] The outflow tube 330 is fitted into the guide tube 250 of
the pumping unit 200r to be connected together. By the connection
of the outflow tube 330 and the guide tube 250, the passage of
allowing the flow of the contents is formed, and the pressurizing
button 300 is connected to the pumping unit 200 so as not be
separated from the pumping unit 200.
[0049] In the pressing plate 310, a horizontal passage 315 is
formed to be operatively connected to the vertical passage 335. The
horizontal passage 315 is operatively connected to a discharging
passage 355 (FIG. 5) formed in the nozzle 350 when the nozzle 350
is in an open position. Further, in the wall 320, a nozzle
receiving groove 325 is formed to prevent the nozzle 350 from being
exposed when the nozzle 350 is in the closed position.
[0050] The pressurizing button 300 may include a stopper 340 to
prevent the nozzle 320 from being excessively deeply inserted into
the nozzle receiving groove 325.
[0051] As illustrated, the stopper 340 is formed integrally with a
bottom side of the pressing plate 310. Further, preferably, the
nozzle 350 may include a raise R, to easily position the nozzle 350
inserted into the nozzle receiving groove 325 so as to be in the
open position, using a user's thumb or finger.
[0052] Then, when a finger receiving groove 358 is formed at each
of the sides of the nozzle 350, the nozzle 350 is more easily in
the open position.
[0053] The pressurizing button 300 having the above constitution
provides a pressurizing surface and functions as a cap of the
pumping device. Further, as the nozzle 350 is inserted into the
nozzle receiving groove 325 formed on the wall 320, the nozzle 350
is maximally prevented from being exposed and therefore the nozzle
350 is prevented from being unintentionally in the open position to
the contrary of a users purpose.
[0054] Further, in the embodiment, the fixing cap 280 of the
pumping unit 200 has an outer cylindrical body 281 and an inner
cylindrical body 283. A guide groove 282 is formed between the
outer cylindrical body 281 and the inner cylindrical body 283. The
wall 320 of the pressurizing button 300 is inserted into the guide
groove 282. The inner cylindrical body 283 includes a center
maintaining aperture 283a into which the outflow tube 330 of the
pressurizing button 300 is inserted so as to be guided
vertically.
[0055] The lower end of the outer cylindrical body 281 is extended
integrally with the lower end of the inner cylindrical body
283.
[0056] When the nozzle 350 is in the open position and the
pressurizing button 300 is pressed, the wall 320 of the
pressurizing button 300 is inserted into the guide groove 280
formed in the fixing cap 280 and slides vertically, the contents,
which are moved up along the guide tube 250, pass through the
vertical passage 335 and the horizontal passage 315 and are
discharged through the discharging passage 355 (FIG. 5).
[0057] Further, the fixing cap 280 is fixedly combined with the
opening 120 of the container body 100. Since a screw thread is
formed on the inner circumferential surface of the inner
cylindrical body 283 of the fixing cap 280 and a screw thread is
formed on the outer circumferential surface of the opening 120 of
the container body 100, the fixing cap 280 and the container body
100 are fixedly combined with together by the screw threads.
However, the fixing cap 280 and the container body 100 may be
fixedly bonded together by an adhesive.
[0058] The accompanying drawings show the fixing cap 280 and the
container body 100 being fixedly combined by the screw threads.
[0059] FIG. 10 is a sectional view of FIG. 4, illustrating the
nozzle being in the closed position.
[0060] With reference to FIG. 10, in the pumping device according
to the embodiment of the present invention, the contents are
interrupted from being unintentionally released when the nozzle 350
is in the closed position. Then, the interruption of unintentional
release of the contents is realized by the constitution of
inactivating the pressing operation of the pressurizing button 300.
Specifically, when the nozzle 350 is in the closed position, the
nozzle 350 is caught by the top sides 281-1 and 283-1 of the fixing
cap 280, so that the pressurizing button 300 is prevented from
being pressed.
[0061] For example, after the nozzle 350 is in the closed position
and inserted into the nozzle receiving groove 325, when an end 350a
of the nozzle 350 contacts with the top side 281-1 of the outer
cylindrical body 281 or the top side 283-1 of the inner cylindrical
body 283, the pressing operation of the pressurizing button 300 is
prevented. Further, when any part of the raise R formed on the
nozzle 350 contacts with the top side 281-1 of the outer
cylindrical body 281, the pressing operation of the pressurizing
button 300 is prevented.
[0062] FIGS. 11 and 12 illustrate the constitution of a pumping
device according to another embodiment of the present invention, in
which FIG. 11 illustrates a nozzle 350 being in the open position
and FIG. 12 illustrates the nozzle 350 being in the closed
position.
[0063] As illustrated in FIGS. 11 and 12, the nozzle 350 may
include a projection 359 formed at an end of the nozzle 350. The
projection 359 makes it easy to hold the nozzle 350 inserted into a
nozzle receiving groove 325 and to position the nozzle 350 so as to
be in the open position, using a user's thumb or finger. The
projection 359 may be formed integrally with the nozzle 350 or it
may be formed separately from the nozzle 350 and bonded to the
nozzle 350. Further, when the nozzle 350 is in the closed position
and a pressurizing button 300 is pressed, the projection 359
contacts with a top side 2811 of an outer cylindrical body 281.
Therefore, the projection 359 has the function of inactivating the
pressing operation of the pressurizing button 300.
INDUSTRIAL APPLICABILITY
[0064] As described above, the pumping device in accordance with
the present invention is used for dispensing the contents contained
in a container, such as liquid-type, paste-type, gel-type contents
and the like. The contents include soap, medicine, cosmetics or
others. The pumping device can be effectively used for dispensing
the contents having viscosity, such as cream, lotion, rinse,
shampoo, hair gel and the like, by using the pumping device with
the foldable nozzle.
* * * * *