Dispensing – With discharge assistant – With material supply container and discharge assistant with...
Reexamination Certificate
2000-06-08
2001-09-25
Shaver, Kevin (Department: 3754)
Dispensing
With discharge assistant
With material supply container and discharge assistant with...
Reexamination Certificate
active
06293441
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a trigger-type liquid discharge container usable in both ordinary and inverted postures.
2. Description of Related Art
As disclosed in Japanese Utility Model Laid-Open No. 1-69658, for example, there is known a trigger-type liquid discharge container comprising a container body with a neck portion, a discharge body, and a mounting tube, said discharge body including:
a first main member having a suction tube raised from an inside of a rear portion of a base tube;
and a second main member having an outer tube fitted on an outer face of said suction tube, a cylinder protruding forward from a lower portion of the outer tube, an ejection pipe protruding forward from an upper end portion of the outer tube, each said cylinder and ejection pipe communicating with the suction tube respectively, an outwardly flanged wall which is formed on the lower portion of said outer tube and has a rear bottom wall portion of said cylinder as a common wall, a cover tube depending from an outer circumference of the outwardly flanged wall and being fitted on an upper outside of said base tube.
Said base tube has at its intermediate portion an outward flange, and said mounting tube is depending turnably from an inward flange, which is formed on an upper end of the mounting tube and resting on a rim of the outward flange at its upper face, and said fitting tube being fastened on an upper face of the neck portion of the container body. In this liquid discharge container, a trigger is hinged to depend from the front portion of the ejection tube, and a plunger, as fitted in said cylinder while being biased forward, is jointed at its front end to the rear face of the upper portion of said trigger, so that the liquid in the container body can be sucked into the cylinder through the suction valve by the sliding motions of the plunger caused by the triggering actions and so that the liquid in said cylinder can be discharged through the discharge valve from a nozzle fitted in the front end of the ejection pipe.
In the liquid discharge container described above, on the other hand, a three-way branch pipe member having a ball valve is fitted at its main tube in the lower portion of aforementioned suction tube, and a suction pipe depends into the bottom portion of the container body through the first branch tube branched downward from the lower end of said main tube whereas the second branch tube is raised upward from the lower end of the main tube, so that the liquid in the container body may be sucked through the first branch tube and the main tube, when the container is in the ordinary posture, and through the second branch tube and the main tube, when in the inverted posture, into the cylinder.
SUMMARY OF THE INVENTION
In the aforementioned liquid discharge container, by fitting the upper end portion of the main tube into the lower portion of the suction tube of the first main member, the three-way branch tube member having the ball valve is made to depend into the container body, and the suction pipe is made to depend from the first branch tube branched downward from the lower end of the main tube. However, the above mentioned three-way branch tube member raises an obstruction for its handling, when the discharge body is to be removed from the container body and mounted on the same at the time of supplying the container body with the liquid, On the other hand, the three-way branch tube member and the first main member of the discharger are jointed merely by fitting the main tube of the three-way branch tube member into the suction tube of said first main member. If the suction pipe and the three-way branch tube member touch the neck portion of the container body when they are to be inserted into the container body for the aforementioned liquid supply, for example, a force is established to push the three-way branch tube member sideway with respect to the discharge container and is concentrated at the upper end of the main tube portion depending from the lower end of the suction tube, so that those portions are liable to be damaged.
The present invention eliminates the above-specified defects and simplifies the structure for sucking the liquid when the container body is inverted.
In order to solve the aforementioned problems, the present invention proposes the following technical means.
According to first means, in a trigger-type liquid discharge container usable in both ordinary and inverted postures, comprising a container body with a neck portion, a discharge body
1
, and a mounting tube
21
, said discharge body including:
a first main member
2
having a suction tube
4
raised from an inside of a rear portion of a base tube
3
;
and a second main member
11
having an outer tube
12
fitted on an outer face of said suction tube, a cylinder
13
protruding forward from a lower portion of the outer tube
12
, an ejection pipe
14
protruding forward from an upper end portion of the outer tube
12
, each said cylinder and ejection pipe communicating with the suction tube respectively, an outwardly flanged wall
15
which is formed on the lower portion of said outer tube and has a rear bottom wall portion of said cylinder as a common wall, a cover tube
16
depending from an outer circumference of the outwardly flanged wall
15
and being fitted on an upper outside of said base tube
3
;
said base tube
3
having an intermediate portion on which an outward flange
3
a
is provided;
said mounting tube
21
depending turnably from an inward flange
22
, which is formed on an upper end of the mounting tube
21
and resting on a rim of the outward flange
3
a
, and said mounting tube being fastened on an upper face of the neck portion of the container body; characterized:
in that said first main member
2
is further defined by that said base tube
3
has an open top, and a partition
31
is transversely provided in the intermediate portion of the base tube
3
, and said suction tube
4
extends upwardly from a rear part of said partition
31
, while a lower part of said suction tube
4
penetrating downwardly therethrough;
in that said discharge container also comprises a suction pipe setting tube
41
having a bottom plate
42
, and a first circumferential wall
43
which extends upwardly from an outer circumference of the bottom plate
42
and has a upper wall portion fitted water-tightly into a lower portion of the said base tube
3
, and a suction pipe
7
which depends downward from a rear portion of said bottom plate
42
while the suction pipe is opened to an upper face of said bottom plate;
in that said discharge container further comprises a valved member
51
having a top plate
53
, a second circumferential wall
54
which depends from an outer circumference of the top plate
53
and is fitted in a lower portion of said first circumferential wall
43
, and a joint tube
52
which extends upwardly from a rear portion of the top plate
53
and penetrates downwardly therethrough, while an upper portion of said joint tube
52
being fitted into the lower part of the suction tube
4
, while the joint tube is communicating with the suction pipe
7
, said top plate having a front portion which is formed into a valve seat
55
tapering to have a small diameter lower end portion, in which a valve hole
56
is provided, while a ball valve
57
being placed on the tapered valve seat, and the joint tube
52
having below the top plate
53
an opening
58
communicating with the valve hole
56
;
in that a valve chamber
32
having a lower face opened is extending downward from a front portion of the partition
31
of the first main member to an area above the ball valve
57
, while a liquid inlet port
45
for the inverted posture is opened at an upper front portion of the first circumferential wall
43
, and a liquid inlet passage
34
for the inverted posture is formed for communicating the valve chamber and the liquid inlet port, and a front wall face in the valve chamber is formed into a slope
33
having a lower end fro
Nakamura Hiroyuki
Tasaki Takaharu
Tsuchida Haruo
Oliff & Berridg,e PLC
Shaver Kevin
Willatt Stephanie L.
Yoshino Kogyosho Co. Ltd.
LandOfFree
Trigger type liquid spray container for operation in both... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Trigger type liquid spray container for operation in both..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trigger type liquid spray container for operation in both... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2474684