JPH0528225Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This case concerns a cream-like substance dispensing container.

``Problems to be solved by conventional technology and ideas'' This type of container has a storage chamber for cream-like material whose upper surface is covered with an elastic dome, a suction valve, and a discharge valve. The pressurized creamy substance opens the discharge valve and pours it out to the outside, and on the other hand, as the storage chamber becomes negative pressure due to this pouring, the suction valve opens, The cream-like substance is sucked up from the container body and replenished into the storage chamber in preparation for the next pouring.

Conventionally, this type of container has had the disadvantage of requiring a large number of parts and resulting in high costs. For example, in 1983
-The container described in Publication No. 112772 has a partition member that closes the upper surface of the container body, a member for supporting the elastic dome, which is formed separately from the container body, and the elastic dome is formed as an independent part. The number of parts increases, and assembling the same parts becomes troublesome, resulting in high costs.

The present invention eliminates the above-mentioned drawbacks by forming the device with only four members and by providing a structure in which these members can be assembled by simply fitting the other three members into the container body. It is.

"Means for Solving the Problem" The upper end surface of the body 6 having a lower opening provided in a straight cylinder shape is closed with the top wall 8, and the outer peripheral wall 6a is extended from the top wall along the outer periphery of the top wall. The inner peripheral wall 10 is shared with the rear part and there is a space between the front parts.
The valve stem 12 is raised higher than both the inner and outer circumferential walls from the inner front part, and the valve body mounting cylinder 21 is erected from within the inner circumferential wall 10, and a valve hole 7 is formed in the center of the top wall portion surrounded by the valve body mounting cylinder 21. a container body 1 having a hole therein; and a bottom plate 4 fitted so as to be able to rise into the lower part of the body 6.
and to each outer surface of the outer peripheral wall 6a and the inner peripheral wall 10,
The outer fitting wall 13 and the inner fitting wall 15 which are shared by integrating the rear wall portion are fitted respectively, and the upper surface of the inner fitting wall 15 is closed with an elastic dome 14, and each of the inner and outer fitting walls is The front wall part and the side wall provided between the right and left sides of these parts are extended upward to form a discharge passage cylinder 17, and a valve hole is bored in the center of the elastic top wall that closes the upper end surface of the cylinder. The upper end of the rod 12 is sealed and the discharge valve 18 is closed.
the cap member 3, and the valve body mounting cylinder 21.
It consists of a suction valve 2 which projects a valve plate 2a that seals the upper surface of the valve hole 7 through an elastic connecting piece from a part of the inner surface of the valve cylinder fitted to the inner surface, and includes the inner circumferential wall 10 and the inner fitting wall 15. First and second communication holes 11,
The container body 1, the suction valve 2, the cap member 3, and the bottom plate 4 were each integrally molded from a synthetic resin material.

"Operation" When the outer cover 5 is removed from the state shown in FIG. The liquid enters the discharge pipe cylinder 17, and further opens the discharge valve 18 to discharge it to the outside. When the elastic dome 14 is released, since the discharge valve 18 is closed at this time, the pressure inside the storage chamber 9 becomes negative due to its elastic restoration, and the suction valve 2 opens. is sucked in, and the bottom plate 4 rises to eliminate the negative pressure inside the body 6 caused by the suction.

``Example'' First, a first example shown in FIGS. 1 and 2 will be described. The container main body 1 has a lower end opening of the body 6 expanded, and an upper part that is slightly reduced in diameter. An engaging protrusion 20 is provided around the outer periphery of the part. The upper end of the reduced diameter portion is closed by a top wall 8, and from the top wall, along the outer periphery of the top wall, an outer peripheral wall 6a is integrated and shared with the rear part of the outer peripheral wall 6a, with a space between the front parts. and the inner circumferential wall 10, and between them the valve stem 1 is higher than both the inner and outer circumferential walls from the inner front part.
2 and a valve body mounting cylinder 21 are respectively erected from the top wall portion surrounded by the inner circumferential wall, and a valve hole 7 is bored in the center of the top wall portion surrounded by the valve body mounting cylinder 21. A first communication hole 11 is provided in the front part of the inner peripheral wall 10.
will be established. The holes may be slotted as shown.

A bottom plate 4 is fit into the lower part of the body 6 so as to be able to rise. In the bottom plate, an elastic circumferential wall 23 having an arcuate cross section at the periphery of the bottom plate 22 is press-contacted to the inner wall surface of the body 6 so as to be airtightly and slidably fitted therein.

The cap member 3 has an outer fitting wall 13 and an inner fitting wall 15, which are integrated and share a rear wall portion, fitted onto the outer surfaces of the outer circumferential wall 6a and inner circumferential wall 10 of the container main body 1, respectively. At the same time, the upper surface of the inner fitting wall is closed with the elastic dome 14. Also, both inner and outer fitting walls 15,1
Each front wall portion of No. 3 and the side wall provided between the right and left sides of these portions are extended upward to form a discharge passage tube 17, and the upper end surface of the tube is closed with an elastic top wall. A valve hole drilled in the center is sealed with the upper end of the valve rod 12 described above to form a discharge valve 18. A second communication hole 16 communicating with the first communication hole 11 described above is bored at the lower end of the front wall of the inner fitting wall. The rear left and right sides of the inner fitting wall 15 intersect with the rear left and right sides of the outer circumferential wall 6a, and the lower left and right side walls of the discharge pipe 17 intersect with the left and right front parts of the outer circumferential wall 6a. A split groove may be provided on both sides to enable the crossing. Further, the gap formed between the upper ends of the inner and outer fitting walls 15 and 13 is preferably closed by an upper wall extending the periphery of the elastic dome outward.

In the suction valve 2, a valve plate 2a that seals the upper surface of the valve hole 7 protrudes from a part of the inner surface of the valve cylinder that is fitted onto the inner surface of the valve body mounting cylinder 21 described above through an elastic connecting piece.

An outer cover 5 is removably fitted onto the outer surface of the cap member 3.

Each of the above members is integrally molded from synthetic resin.

In the second embodiment shown in FIGS. 3 and 4, protection walls 19 and 1 are approximately the same height as the discharge pipe tube 17 and slightly higher than the elastic dome 14 from both left and right sides of the upper end of the inner fitting wall.
Stand up 9. The other structure is the same as that of the first embodiment.

The cap member 3 of the first embodiment and the protective walls 19, 19 of the second embodiment prevent other objects from inadvertently squeezing the elastic dome 14 and pouring out the creamy substance, and also prevent the creamy substance from being poured out into the body 6. When filling the creamy substance, the container main body 1 is stood upright,
The body can be filled with the bottom plate 4 removed.

``Effect of the invention'' Since the present invention has the above-described structure, the container body 1, suction valve 2, cap member 3, and bottom plate 4 are made of synthetic resin.
It is easy to integrally mold each of the four members, and the container can be formed by assembling these four members by pushing the valve barrel of the suction valve 2 into the valve body mounting barrel 21 of the container body 1 from above. The outer fitting wall 13 and the inner fitting wall 15 of the cap member 3 are lowered and fitted, and the outer fitting wall 13 and the inner fitting wall 15 of the cap member 3 are attached to the respective outer surfaces of the outer peripheral wall 6a and the inner peripheral wall 10 of the container body 1.
A valve stem that stands up from the front of the top wall of the container body is inserted into the discharge pipe tube 17 of the member and fitted, and then pushed into the lower part of the body 6 of the container body from below the bottom plate 4 and fitted. Since it is only necessary to fit the parts together, the assembly is extremely easy and quick. Further, as described above, each member can be easily molded in one piece, and only four members are required, and furthermore, it is easy to assemble these members, so that the cost can be reduced.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of the first embodiment of the cream dispensing container of the present invention, Fig. 2 is an enlarged cross-sectional view with the outer cover removed, and Fig. 3 is a cross-sectional view of the second embodiment. The longitudinal sectional view and FIG. 4 are its enlarged plan views. DESCRIPTION OF SYMBOLS 1... Container body, 2... Suction valve, 3... Cap member, 4... Bottom plate, 5... Outer cover.

Claims (1)

[Scope of utility model registration request] The upper end surface of the body 6 having a lower opening provided in a straight cylindrical shape is closed with a top wall 8, and an outer peripheral wall 6a is formed from the top wall along the outer periphery of the top wall, and a rear portion is shared with the outer peripheral wall and between the front parts. The inner peripheral wall 10 is placed between
The valve stem 12 is raised higher than both the inner and outer circumferential walls from the inner front part, and the valve body mounting cylinder 21 is erected from within the inner circumferential wall 10, and a valve hole 7 is formed in the center of the top wall portion surrounded by the valve body mounting cylinder 21. a container body 1 having a hole therein; and a bottom plate 4 fitted so as to be able to rise into the lower part of the body 6.
and to each outer surface of the outer peripheral wall 6a and the inner peripheral wall 10,
The outer fitting wall 13 and the inner fitting wall 15 which are shared by integrating the rear wall portion are fitted respectively, and the upper surface of the inner fitting wall 15 is closed with an elastic dome 14, and each of the inner and outer fitting walls is The front wall part and the side wall provided between the right and left sides of these parts are extended upward to form a discharge passage cylinder 17, and a valve hole is bored in the center of the elastic top wall that closes the upper end surface of the cylinder. The upper end of the rod 12 is sealed and the discharge valve 18 is closed.
the cap member 3, and the valve body mounting cylinder 21.
It consists of a suction valve 2 which projects a valve plate 2a that seals the upper surface of the valve hole 7 through an elastic connecting piece from a part of the inner surface of the valve cylinder fitted to the inner surface, and includes the inner circumferential wall 10 and the inner fitting wall 15. First and second communication holes 11,
16, and four members, the container body 1, the suction valve 2, the cap member 3, and the bottom plate 4, are each integrally molded from a synthetic resin material.