JPH0335721Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a squeeze container in which a container body formed to be elastically deformable is squeezed and liquid in the container is poured out under pressure.

``Prior art'' The upper end surface of the mouth and neck, which stands up from the upper end of the body, is sealed with a highly elastic valve plate made of synthetic rubber, etc., and the valve plate is made with a cut line perforated in the valve plate. The valve closes when the separation surfaces come into close contact with each other, and the valve plate expands into a hemispherical shape and elastically deforms due to changes in internal pressure due to elastic compression or restoration of the body, so that both separation surfaces resist elasticity. A liquid container is known in which the valve is opened when the valve is separated, and when the valve is opened, the liquid inside the body is poured out to the outside, and the outside air is sucked into the body (Utility Model Publication No. 49-45952). issue).

``Problem to be solved by the invention'' In the valve of the conventional container described above, the opposing separation surfaces of the cut lines made in the valve plate are separated by the elastic force of the highly elastic valve plate made of synthetic rubber against the elongation deformation. The valve is closed when the valve plate is in close contact with the valve plate, and the valve is opened when the valve plate stretches and deforms when the valve plate bends and the separated surfaces separate from each other against the elastic force. It is necessary to bring the surfaces into perfect contact with each other with the above-mentioned elastic force, and therefore the material of the valve plate has the drawback of being limited to high elasticity, that is, high cost, and the elastic force decreases due to elastic fatigue of the valve plate. Because the above-mentioned separation surfaces are no longer in close contact with each other,
This has the double disadvantage of having to frequently replace the valve plate, which has low durability and is therefore expensive.

``Means for Solving the Problems'' A container body 1 having an elastically deformable body 4, a cap-shaped cap fitted to the mouth neck 6 of the container body, and a pouring inlet 9 in the center of a top wall 8. is opened, and engaging grooves 11 are formed in the inner circumference from the periphery of the spout 9, and dividing grooves 1 are formed at various places in the circumferential direction of the peripheral wall.
A mounting member 2 is provided with a cylindrical mounting foot 13 provided with a cylindrical mounting foot 13, and a peripheral wall-shaped valve seat 16 located on the outer circumference of the mounting foot 13 from the back surface of the top wall 8. At the center of an elastically deformable disk-shaped valve plate 17 inscribed in the seat 16, an engagement protrusion 19 that engages with the engagement groove 11 is provided on the outer periphery, and the mounting foot 13
It consists of a valve member 3 having a mounting boss 18 that is inserted and fixed in the lower half.

"Operation" In the above configuration, when pouring out the liquid, the body 4 is squeezed with the hand holding the container body 1. Then, the liquid pressurized by this squeezing pushes up the elastically deformable valve plate 17 to open the valve as shown in FIG. Served. When the inside of the container body 1 becomes negative pressure due to this liquid pouring out, the atmospheric pressure conversely pushes down the valve plate 17 to open the valve as shown in Fig. 2b, so that the amount corresponding to the amount of liquid poured out is reduced. of air is taken into the container body 1 from the spouting port 9.

``Example'' 1 is a container body, 2 is a cap-shaped mounting member attached to the mouth of this container body 1, and 3 is a valve member fixed internally to the back side of this mounting member 2. Molded and manufactured from synthetic resin material.

The container body 1 is made of a soft synthetic resin, and the body 4 has elasticity. Therefore, if the body 4 is squeezed with a clamped hand, the stored liquid will be pressurized and the liquid will be transferred to the mouth 5.
It can be poured from. Reference numeral 6 denotes a mouth portion, and a thread 7 is formed on the outer peripheral surface of the mouth portion.

The mounting member 2 has a short tube 10 for forming the spout 9 passed through the center of the top wall 8, an engagement groove 11 is formed in the lower part of the inner periphery from the back surface of the short tube 10, and A cylindrical mounting foot 13 having sufficient pressure bonding force is provided vertically with several grooves 12 communicating with the pouring port 9 in the circumferential direction, and the screw thread 7 is installed from the periphery of the top wall 8 to the inner periphery. A peripheral wall 15 is provided vertically to be screwed onto the outer surface of the mouth and neck portion 6 by providing a threaded groove 14 to be screwed into the valve seat 16. is installed vertically. still,
It is also possible to seal the spout 9 with a sheet that can be peeled off during use to prevent dust from entering the valve member 3 from the spout 9 during the distribution process.

The valve member 3 is made of soft synthetic resin, and has a mounting boss 18 erected from the upper surface of the central part of an elastically deformable disk-shaped valve plate 17, and the engagement protrusion 19 on the outer periphery of the boss 18 is connected to the engagement projection 19. The mounting foot 1 engages with the matching groove 11.
3, the peripheral end surface of the valve plate 17 is inscribed in the lower inner periphery of the valve seat 16 in a liquid-tight manner to close the valve, and the pressure can be increased by elastic compression of the body 4. Due to negative pressure caused by elastic restoration, the valve plate 1
The valve is provided so that the valve opens when the valve 7 is elastically deformed by bending upward or downward.

In the above configuration, since the valve member 3 is in surface contact with the peripheral end surface of the valve plate 17 having an appropriate wall thickness inscribed in the inner surface of the valve seat 16, the valve does not open unless an external force of a certain level or more is applied. It maintains liquid-tightness, and the valve will not open even if the container is subjected to impact such as falling or falling.

"Effect of the invention" In the valve of the container of the present invention, the peripheral end surface of the valve plate 17 is inscribed in the peripheral wall-shaped valve seat 16 hanging from the back surface of the top wall 8 of the mounting member 2, so that the valve plate is bent upward or downward. It can be opened and closed by elastic restoration, and there is no need to bring the cut-off surfaces of the cut lines into close contact with each other due to the elastic force against the elongation of the valve plate, unlike the conventional container valves mentioned above, so the material is highly elastic. It is not limited to high-cost containers, and it is less likely that the valve plate will need to be replaced due to loosening due to the reduction of the elastic force due to fatigue, so a versatile container can be provided.

Further, in the valve of the present invention, since the mounting boss 18 is attached to the central part of the valve plate 17,
The valve plate 17 can be vertically displaced by using the entire inner periphery of the valve plate as a bent part, and the stress caused by opening the valve can be dispersed over the entire inner periphery. For example, as is known in the art, a valve plate is provided in the valve seat of the present invention so as to be able to swing freely with one end of the valve seat as a fulcrum (for example, see Utility Model Application No. 53-55343). There is no disadvantage that stress is concentrated at one point (ie, the fulcrum portion) and localized elastic fatigue occurs, and the valve member can therefore have a longer service life, which is economical.

Furthermore, in the present invention, since the entire peripheral edge of the valve plate 17 is made into a free end that is displaceable in the vertical direction with respect to the mounting boss 18, the entire outer circumference of the valve plate 17 is used for fluid discharge or when the valve is opened. A gap for intake can be formed, and therefore one end of the valve plate is fixed to the inner surface of the valve seat, as in the valve of the above-mentioned Japanese Utility Model Publication No. 53-55343,
Therefore, compared to the case where a gap is formed between the valve plate periphery and the valve seat inner surface only on the other free end side,
Since the required opening area can be achieved even with a slight elastic deformation of the valve plate 17, fatigue of the valve plate is reduced, and thus the durability of the valve member can be further improved.

In addition, since the valve plate 17 of the valve member 3 is structured to be able to be displaced both upward and downward, both the liquid pouring and suction functions can be performed at once.
This can be done with only one valve member 3, which simplifies the structure of the valve part.
It only requires a few parts, and since they all have extremely simple shapes, they can be manufactured at low cost. Also, the valve plate 17
Since the peripheral end face with a certain wall thickness has a surface contact that fits inside the valve seat 16, high liquid tightness can be maintained, and the valve will not open unless an external force of a certain level or more is applied, so there is no risk of the container tipping over or falling. The valve will not open due to impact, and there is no concern about liquid leakage. Further, since the valve member 3 can be attached and fixed by pushing the attachment boss 18 into the attachment foot 13, there is an advantage that the attachment is easy.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the right half of an embodiment of the squeeze container of the present invention, and FIGS. 2a and 2b are longitudinal sectional views of the right half of the main part for explaining the function of the embodiment. 1... Container body, 2... Mounting member, 3... Valve member.

Claims (1)

[Scope of utility model registration request] A container body 1 having an elastically deformable body 4 and a cap-shaped container fitted to a neck 6 of the container body, with a spout 9 opened in the center of a top wall 8, Engagement grooves 11 are provided from the periphery to the inner periphery, and split grooves 1 are provided at various places in the circumferential direction of the peripheral wall.
A mounting member 2 is provided with a cylindrical mounting foot 13 provided with a cylindrical mounting foot 13, and a peripheral wall-shaped valve seat 16 located on the outer circumference of the mounting foot 13 from the back surface of the top wall 8. At the center of an elastically deformable disk-shaped valve plate 17 inscribed in the seat 16, an engagement protrusion 19 that engages with the engagement groove 11 is provided on the outer periphery, and the mounting foot 13
A squeeze container comprising a valve member 3 having a mounting boss 18 that is inserted and fixed in the lower half.