JPH0459228B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a container for extruding a paste-like substance, such as a toothpaste, a soft soap, a cream, a paste-like seasoning, an ointment, etc. into a fixed amount, and in particular a cylindrical container. The present invention relates to a paste-like material extrusion container in which a piston fitted inside the container is moved upward by a certain pitch to extrude the contents from a discharge hole in the upper part of the container.

<Prior Art> Conventionally, paste-like materials have been generally used in which a paste-like material is stored in a tube made of a flexible material and squeezed out by pressing the tube. Recently, instead of this, in order to push out a certain amount of the contents with a one-touch operation, a cylindrical casing with a discharge hole at the top, a piston that fits tightly into the inner wall of the casing and can slide in the axial direction, and the piston. The rack member includes a rod-shaped rack member that penetrates the top wall of the casing and is movable up and down, and a clamp member that is attached to the piston and engages with the rack when the rack member is ascending and releases the engagement when the rack member is descending. For example, a container for pushing out a paste-like material equipped with an operating means for raising and lowering the
This is known from, for example, Japanese Patent No. 142854. However, all of these known containers still have the inconvenience of having to manually remove the lid each time they are used, and the contents cannot be discharged with a single action.

In order to eliminate this inconvenience, the present inventor has proposed a container in which a rod-shaped rack member is raised and lowered at the same time as the lid covering the discharge hole at the top of the container is opened and closed. Proposed. While this proposal has great significance in that it realizes a complete one-touch operation system, the paste-like material remaining on the edge of the discharge hole may stick to the lid or hang down from the edge of the discharge hole, staining the vessel wall and making it unclean. It has been confirmed that there is a possibility that the solid matter that has dried and solidified at the discharge port may interfere with discharge during the next use, or cause problems such as being mixed into the discharge paste as lumps.

In order to prevent such residual adhesion of excess paste near the edge of the discharge hole, the container proposed in JP-A-57-114467 has a connecting part that is loosely fitted into the middle part of the rod-shaped rack member. Immediately after the extrusion operation of the contents is completed, the free stroke generated in the loose fitting connection creates a negative pressure in the container, causing an appropriate amount of paste-like material in the discharge hole to move backwards, and after that, the rod-shaped rack member to raise the piston,
It is designed to prepare for the next extrusion operation. However, the suction effect of this container on paste-like materials is caused by the so-called "play" of the loose fitting connection part embedded in the paste-like material inside the container, so the viscosity of the paste-like material is particularly high. In this case, it has been found that there are many cases in which the movement within the free path is obstructed by paste-like substances that have entered the loosely fitted portion, preventing complete operation.

<Problems to be solved by the invention> The present invention was completed after intensive research to solve the above-mentioned problems, and its main purpose is to
Immediately after extrusion, it is possible to reliably perform a suction action to reverse the appropriate amount of paste-like material in the discharge hole so that a part of the extruded contents does not protrude and remain near the edge of the discharge hole. To provide a container for extruding paste-like materials.

The other purpose is the patent application filed in 1983, which was already proposed by the inventor.
Improvements have been made to the invention of No. 211350, making it easy to handle by allowing one-touch operation to open the discharge hole and push out the contents one after another.Moreover, a portion of the extruded contents is located near the edge of the discharge hole. To provide a container for extruding paste-like material which does not stick out and remain and does not adhere to a lid body even when the lid is closed.

Another object of the present invention is to provide a one-touch extrusion type container that can always provide a fresh and homogeneous paste without drying and solidifying near the discharge hole.

<Means for Solving the Problems> The gist of the present invention for achieving the above-mentioned main objective is to provide a cylindrical casing having a discharge hole in the upper part;
a piston that fits tightly into the inner wall of the piston and is slidable in the axial direction; a rod-shaped rack member that passes through the piston and the top wall of the casing and is movable up and down; In a container for extruding paste-like materials, the paste-like material extrusion container is provided with a lifting means for moving the rack member up and down, comprising a clamp member that engages with the rack member and releases the engagement when the rack member is lowered. A bulging diaphragm is mounted on the upper surface of the hole, and the elevating means includes a pressing force adding/releasing means for accumulating elastic force by pressing the diaphragm when the rack member is raised and releasing the pressing force when the rack member is lowered. There is a container for extruding a paste-like material, characterized in that the container is interlocked with the container.

In addition to the above-mentioned configuration, the container for extruding paste-like material is characterized in that a cap that opens and closes the discharge hole by reciprocating rotation is pivoted to the upper part of the casing. a cap rotating means for opening the discharge port and pressing the diaphragm to accumulate elastic force when the rack member is raised; and releasing the pressure and closing the discharge hole when the rack member is lowered; Another feature is that the pressing force addition/removal means is interlocked with the lifting/lowering means.

The configuration of the present invention will be explained below based on the accompanying drawings.

1 to 11 show examples of the container of the present invention, in which FIG. 1 is a vertical cross-sectional view along the central axis;
Figure a is an enlarged view of the main parts, Figure 2 is a bottom view, Figure 3 is an exploded perspective view, Figure 4 is a perspective view of parts used in the second invention, and Figure 5 is an assembled vertical sectional view. ,
Fig. 6 is an enlarged longitudinal cross-sectional view of the main part for explaining the operation, Fig. 7 is a side view of another embodiment, Fig. 8 is a plan view thereof, Fig. 9 is a longitudinal cross-sectional view taken along the line A-A, Figure 10 is a perspective view showing the state in which the discharge hole is open;
FIG. 1 is an enlarged vertical cross-sectional view of the main part for explaining its operation.

In FIGS. 1 to 3, the container of the present invention basically consists of a cylindrical casing 1, a piston 2 housed therein, a clamp member 3, a rod-shaped rack member 4 inserted along the axis, and a bulge. It comprises a shaped diaphragm 18 and preferably a plug 5 fitted into the discharge hole.

On the top wall 6 of the casing 1, there is a discharge hole 7 at the tip.
A tube body 8 is erected to communicate the inside of the container with the inside of the container, and a central through hole 9 through which the rack member 4 is inserted and a through hole 10 which covers a bulging diaphragm 18 are provided therethrough. The bottom of the casing 1 is open and the lower edge is preferably provided with a flange 11 around it to increase upright stability.

A piston 2 is fitted into the interior of the casing 1 from the open end side. The piston 2 has a shape in which the peripheral edge of a disk 13 having a through hole 12 in the center is connected to a cylindrical body 14, and the cylindrical body 14 is sized and shaped so that it fits tightly into the inner wall of the casing 1 and can slide in the axial direction. It is formed with strict tolerances, and preferably the generatrix of the outer circumferential surface is arcuate so that the upper and lower edges are uniformly in close contact with the inner wall of the casing 1, but a gap is maintained in the middle. Furthermore, it is particularly preferable to form the lower edge into a sharp edge, since this works effectively to prevent the piston 2 from descending, which will be described later.

Inside the casing 1, a rod-shaped rack member 4 extending over substantially the entire length thereof is vertically provided, passing through the central through hole 9 of the top wall 6 and the through hole 12 of the piston 2, respectively. The large-diameter portion 15 at the upper end of the rod-shaped rack member 4 is slidably fitted into the central through-hole 9, and racks are uniformly carved at a pitch of about 0.5 to 3 mm from just below the large diameter portion 15 to the lower end. The maximum diameter part of the rack is in liquid-tight sliding contact with the inner wall of the through hole 12 of the piston 2, and the height of the inner wall of the through hole is designed to be larger than the rack pitch so that the ridgeline of one of the teeth of the rack is always in contact with the inner wall of the through hole 12. If the rack member 4 is brought into contact with the inner wall, an airtight state is maintained at the piston 2 even when the rack member 4 moves up and down, and the contents will not leak.

A clamp member 3 attached to the piston 2 includes an annular plate 16 that fits into an annular recess formed on the lower surface of the piston 2 and a plurality of claws 1 extending inward from the annular plate 16.
7 and 17', and the tips of the claws 17 and 17' clamp the rack member 4 and engage with the rack. The rod-like rack member 4 is connected at its upper end to an elevating means for moving the rod-like rack member up and down, and during the upward movement, the piston 2 is accompanied by the clamp member 3 and the rack to maintain the engaged state. On the other hand, when the rod-shaped rack member 4 moves downward, the engagement with the clamp member 3 is released, allowing the rack member to freely move downward.

The main point of the present invention in the container described above is that a bulging diaphragm 18 is attached to the upper surface of the through hole 10 formed in the top wall 6 to close and cover the through hole 10.
When the rod-shaped rack member 3 rises, the diaphragm 18 is pressed to accumulate elastic force, and when the rack member 3 descends, the pressing force release means is interlocked with the elevating means. be.

In the illustrated embodiment, a one-piece lever 19, which has the simplest structure, is used as such a lifting means. That is, one end of the lever 19 is connected to the upper end of the rod-shaped rack member 4 by a cable 20, and a support shaft 21 in the intermediate portion is supported in a bearing hole 23 bored in a bracket 22 attached to the tube body 5, for example. and is rotatably pivoted. Preferably, the lever 19 is always urged by a resilient member such as a spring 24 from the rack member raising position to the lowering position. In the illustrated example, an arc-shaped cantilever spring 2 such as a leaf spring or a rod spring is attached to the lower part of the side where the force that rotates the lever 19 is applied.
4 has its free end engaged with a spring receiver 25, and serves to return the lever 19 to the lowered position of the rack member 4.

In order to interlock the pressing force applying/releasing means for pressing and releasing the pressure on the bulging diaphragm 18 of the container of the present invention with the elevating means of the rack member 4, for example, when the elevating means is a single lever 19,
A protruding object is provided vertically or protrusively at the lower part of the lever 19 on the side where the force is applied, and when the lever 19 is rotated to raise the rack member, the protruding object will cause the bulging diaphragm 1 to
It can be configured as appropriate to press the bulging surface of 8. In the most preferred embodiment, as shown in the figure, the arc-shaped cantilever spring 24 bends under a large load due to the action of the lifting means, and conversely, the bending deformation in which it elastically recovers and expands against the load is used as the pressing force application/removal means. It is what you do. In this case, when the lever 19 is in the lowering position of the bar-shaped rack member, that is, when the lever 19 is in the lowering position, the spring 24
is close enough to the bulging surface of the diaphragm 18 when it is in its expanded state, and the lever 1
The through hole 10, the diaphragm 18 and the arc-shaped cantilever spring 2 are arranged so that when the rod-shaped rack member 9 is in the lifting position, that is, when the spring 24 is compressed and deflected, it presses against the bulging surface of the diaphragm 18.
It is important to appropriately determine the relationship arrangement, shape, and dimensions of 4 in advance.

The pressing force addition/removal means may include an arcuate cantilever spring;
For example, instead of directly pressing the diaphragm with the side surface of the bar spring or leaf spring 24, a protrusion 27 is provided at the point where the spring 24 contacts the diaphragm 18, as shown in FIGS. 9 and 11. Ki 27
It is preferable to add some design ingenuity so that the bulging surface is pressed from above.

The bulging diaphragm 18 is made of an elastic material with a high elastic modulus and good elastic recovery, such as rubber or soft plastic, and it is particularly preferable that the bulging surface is hemispherical. It is crowned and fixed to the protruding ring edge 26 on the upper surface of the hole 10 to close and cover the through hole 10. The bulging diaphragm 18 accumulates elastic force by being deformed into a concave shape by applying pressure, and when the pressing force decreases, the accumulated elastic force becomes apparent and returns to its original shape against the stress.

The configuration described above can be appropriately modified without departing from the gist of the present invention, and can be embodied in various embodiments and developed into separate inventions.
For example, patent application No. 58-211350, which is the prior application of the present inventor.
A cap is rotatably attached to the upper part of the container, that is, the casing disclosed in No. 1, and a rod-shaped rack member is connected to the cap via a connecting part such as a cable, and by reciprocating rotation of the cap, The present invention can be advantageously applied to a paste-like substance container in which the rack member is moved up and down and the discharge hole of the casing is opened and closed at the periphery of the cap.

The embodiment shown in FIGS. 4 to 6 is an improvement on the above invention, in which the upper part of the casing 1 of the container shown in FIGS. A cap 28 for opening and closing the discharge hole 7 is provided.

Such a cap 28 is constructed by integrally forming a lid 29 that covers the discharge hole 7 and a pressing plate 30 that is attached to the upper surface of the lever 19 on the side where the force is applied, extending in front and behind the rotating shaft that passes through the shaft hole 31. By fitting the shaft hole 31 into the support shaft 21 of the lever 19, it is pivotally connected to the shaft bearing hole 23 on the bracket 22 coaxially with the lever 19. Also, this cap 28 has a lever of 1
The cover body 29 is reciprocated around the shaft hole 31 so that the discharge hole 7 is closed when the rod-like rack member 9 is in the lowering action position as shown in FIG. 5, and is opened when the rod-like rack member is in the raising action position. The cap 28 is mounted so as to be movable, and the rotating means for the cap 28, that is, the rotating means consists of a manual means for pushing down the pressing plate 30 and a returning means such as the spring 24 for pushing it up.
Pressure force addition/removal means for diaphragm 18 and lever 1
It is linked with a rack member elevating means such as 9.

Another embodiment of the container of the present invention is shown in FIGS. 7 to 11. In this embodiment, the cap 28 covers the discharge hole 7 of the container head, the lever 19, etc., and is provided with an undercut ring 3 which is provided around the upper edge of the casing.
2 and an annular protrusion 33 provided around the inner wall of the skirt portion of the cap 28 are forcibly fitted (forcible fit) to each other, and the cap 28 is mounted on the upper part of the casing 1. The portion of the cap 28 that covers the discharge hole 7 forms a lid 35 that can be opened and closed, and is rotatably connected via a connecting portion 36 such as a hinge or a soft thin wall portion.

On the other hand, the pressing part 34 of the lever 19 is exposed outwardly from the notch of the cap 28, and the arc-shaped cantilever spring 24 provided at the lower part of the pressing part 34 has a protrusion 27 that comes into contact with the top of the bulging surface of the bulging diaphragm 18. equip The lever 19 also integrally includes a plate-shaped or rod-shaped arm 37 extending upward from the upper surface of the lever 19.
When the bar-shaped rack member is in the lowering action position, its tip is located close enough to touch the back surface of the lid body 35, and it draws an upward trajectory as the lever 19 rotates. Its size and shape are determined. Furthermore, a boss or a pin (not shown) is provided at the tip of the arm 37 to protrude laterally, and by engaging with a guide groove (not shown) provided on the back surface of the lid body 35 and sliding it, the arm 37 The lid 35 can be configured to open and close as it rotates. Furthermore, a spring or the like may be provided at the connecting portion between the lid 35 and the cap 28 to bias the lid 35 in the closing direction.
As the means for closing the lid, any suitable known or commonly used mechanism can be employed.

In this way, the means for rotating the lid 35 by the protrusion of the arm 37 is interlocked with the lever 19, which is a means for raising and lowering the rod-shaped rack member. Further, as described above, the arcuate cantilever spring 24 and the protrusion 27 protruding from the spring 24, which is a means for applying and removing the pressing force of the bulging diaphragm 18, are linked with the rack member elevating means. The means for applying pressure to and releasing pressure on the diaphragm, and the means for raising and lowering the rack member are interlocked with each other.

If the lid 35 covers the discharge hole 7 but does not completely block it, it is recommended to insert a separately prepared plug 5 into the discharge hole 7 to prevent the contents from drying and solidifying during long-term storage. be done.

Although the container of the present invention can be manufactured using a metal material, it is advantageous to mold each component other than the elastic members such as the clamp member 3 and the bulging diaphragm 18 using plastics, such as injection molding. It can be manufactured.

The operation of the container of the present invention configured as described above will be explained below.

<Function> Each part of the container of the present invention shown in FIG. 3 is assembled as follows.

First, the bulging diaphragm 18 is attached to the protruding ring edge 26 surrounding the through hole 10 of the casing 1, and then the rod-shaped rack member 4 is inserted into the central through hole 9, and the large diameter portion 15 of the rack member 4 is inserted into the central through hole 9. At the same time, the support shaft 21 of the lever 19 is fitted into the bearing hole 23 of the bracket 22, and the free end of the spring 24 is locked inside the spring receiver 25. Next, the plug 5 is fitted into the discharge hole 7.

In the case of the container shown in FIG. 5, the cap 28 shown in FIG. 4 is attached to the lever 19, and the shaft hole 31 of the cap 28 is inserted into the support shaft 21 of the lever 19 to connect the two. , except that the rod-shaped rack member 4 is attached.

In the case of the embodiments shown in FIGS. 7 to 10, the discharge hole 7 and part of the lever 19 are covered, and the cap 2
If the undercut ring 32 on the upper edge of the casing 1 and the annular protrusion 33 of the cap 2 are forcibly fitted together, only the pressing portion 34 of the lever 19 will be removed from the notch of the cap 28. The shape of the head can be adjusted while looking through.

The assembly of the head is completed in this way, and the casing 1 with its upper end airtightly closed is turned upside down, filled with a paste-like substance from the open end, and then the piston 2 with the clamp member 3 attached is inserted. . A rod-shaped rack member 4 is inserted into the gap formed between the through hole 12 of the piston 2 and the tip of the claw 17 of the clamp member 3.

The operation and operation of the container of the present invention assembled as described above will first be explained with reference to FIG. The basic structure of the present invention shown in FIGS. 1 to 3 is as follows:
This structure corresponds to the structure in which the cap 28 is removed from the container shown in FIG. 6, and can be easily understood by analogy from the following description as having only a function for rotating the cap 28.

First, the plug 5 is removed and the container is ready for use. When the press plate 30 of the cap 28 is pressed with a finger, the cap 28 is pressed around the support shaft 21.
and the lever 19 rotate together, and the lid body 29 closes the discharge hole 1.
7 is opened, the slack in the cable 20 is removed, and the bar-shaped rack member 4 is subsequently raised. That is, the rotation of the lid body 29 is started simultaneously with the rotation of the cap 28, and the discharge hole 7 is opened, but after a slight time lag required for removing the loosening of the cable 20, the rack member 4 begins to rise. Lever 19 is
The rack member is rotated against the elastic force of the spring 24 to the position where the rack member is raised as shown by the dotted line in the figure. Leverage 1 mentioned above
9, the arcuate cantilever spring 24 is compressed and bent, pressing the bulging surface of the bulging diaphragm 18 and causing it to become depressed. Since the diaphragm 18 is made of a material with a large elastic modulus and good elastic recovery, elastic force is accumulated to restore the diaphragm to its original shape due to the above-mentioned concave deformation.

The rack member 4 pulled up by such rotation of the lever 19 is engaged with the claws 17, 17' of the clamp member 3, so that the piston 2 to which the clamp member 3 is attached increases accordingly. An amount of paste corresponding to the reduction in the internal volume of the container due to the rise of the piston 2, or more precisely, the reduction in volume due to the depression of the diaphragm 18, is extruded from the discharge hole 7 through the tube 8.

The important action of the container according to the invention takes place in the next step. That is, when the pressure on the pressing plate 30 is released after a predetermined amount of the discharged paste has been used, the lever 19 rotates in the opposite direction to that described above due to the elastic force of the spring 24, and the lever 19 is easily rotated. The member returns to the lowering position. By this action, the cable 20, which has sufficient rigidity, pushes down the rack member 4, and at the same time, the spring 24 expands and releases the pressure on the bulging diaphragm 18, and the diaphragm 18 is accumulated accordingly. It develops the elasticity it had and returns to its original shape. The lid body 29 automatically closes the discharge hole 7 as the cap 28 rotates. When the rack member 4 moves downward like this, the claw 1 of the clamp member 3
7, 17'... are disengaged from the rack, and the piston 2 has a sharp lower peripheral edge of its cylindrical body 14 that is tightly fitted into the inner wall of the casing 1 with appropriate frictional resistance. , the downward movement is inhibited, and the rack member 4
Allow free descent of only. Therefore, there is no substantial change in the internal volume of the container due to the downward movement of the rack member 4.

On the other hand, the internal volume of the container increases as the bulging diaphragm 18 returns to its original bulging shape from its concave deformation due to the development of elastic force. The objects are sucked in and travel back towards the tube body 8. This suction action is performed immediately after the pressing force on the pressing plate 30 is released,
Then close the lid.

Next, the operation of the embodiment shown in FIGS. 7 to 10 will be explained with reference to FIG. 11.

First, when preparation is completed by manually opening the lid 35 and removing the plug 5, the pressing portion 34 is manually pressed to rotate the lever 19 against the elastic force of the spring 24. While the lever 19 rotates to the position indicated by the double-dashed line, the slack in the cable 20 is removed, but the rod-like rack member 4 does not rise substantially. Although the lid 35 is still closed by the locking force of the small convex hook 38 provided on the portion of the cap 28 that meets the edge of the lid 35, the lever 19 is When the lid is rotated further beyond the position, the pressing force of the arm 37 overcomes the locking force of the hook 38 and the lid is opened, and at the same time the rod-shaped rack member 4 starts to rise, and the lever 19 reaches the position shown by the broken line and stops. Continue to rise until

At this time, the pressing force is applied to the bulging diaphragm 18 due to the bending deformation of the arc-shaped cantilever spring 24, as in the previous embodiment, but in this example, the protrusion 27 provided on the spring 24 acts on the diaphragm. 1
The bulging surface of No. 8 is pressed from directly above to give extremely efficient concave deformation, which accumulates a large elastic force and also causes a large change in volume. The interlocking operations and effects of the means for lowering the rod-like rack member 4 upon release of the pressure on the pressing portion 34, the means for releasing the pressing force on the bulging diaphragm 18, and the means for rotating the lid 35 are as described above. It is.

<Effects of the Invention> The container of the present invention has the above-described structure and operation, and the paste-like material protruding from the vicinity of the periphery of the discharge hole 7 is sucked back into the pipe, and then the lid is closed.
The paste-like material does not stick to the lid 35 and, of course, does not drip from the discharge hole 7 toward the outer wall of the tube 8 and contaminate the surrounding area. In addition, the paste sucked back into the tube is placed under the same humidity or solvent concentration conditions as the large amount of paste inside, so it does not dry out easily and can be discharged the next time without any problems, ensuring that it is always fresh. It is possible to supply a homogeneous paste-like material, and when storing for a long period of time, the shell life can be extended by providing a plug 5.

Furthermore, the container of the present invention allows the lid to be opened and the contents to be pushed out one after another with a single operation using only one hand, making it convenient to handle and regardless of the physical properties such as the viscosity of the paste-like material. Since it is possible to accurately suck back the container immediately after discharge, it eliminates all the drawbacks inherent in conventional containers of this type and achieves an excellent improvement.

However, since the container of the present invention can be provided in large quantities and at low cost by making full use of plastic molding technology, it also greatly contributes to the convenience of daily life.

[Brief explanation of the drawing]

The figures show an embodiment of the container of the present invention, in which Fig. 1 is a longitudinal sectional view along the central axis, Fig. 1a is an enlarged view of the main part, Fig. 2 is a bottom view, and Fig. 3 is an exploded perspective view. ,
Fig. 4 is an exploded perspective view of the parts used in the second invention, Fig. 5 is an assembled vertical cross-sectional view, Fig. 6 is an enlarged vertical cross-sectional view of main parts for explaining the operation, and Fig. 7 is a separate view. 8 is a plan view thereof, FIG. 9 is a vertical sectional view taken along the line A-A, FIG. 10 is a perspective view showing the state in which the discharge hole is open, and FIG. 11 is a view showing its operation. FIG. 2 is an enlarged vertical cross-sectional view of a main part for explanation. DESCRIPTION OF SYMBOLS 1...Casing, 2...Piston, 3...Clamp member, 4...Bar-shaped rack member, 6...Top wall, 7...Discharge hole, 10...Through hole, 18...Bulging diaphragm, 1
9...Lever, 24...Spring, 27...Protrusion, 28...Cap.

Claims (1)

[Claims] 1. A cylindrical casing 1 having a discharge hole 7 in the upper part.
a piston 2 that is tightly fitted to the inner wall of the piston 2 and can be slid in the axial direction; a rod-shaped rack member 4 that penetrates the piston 2 and the top wall 6 of the casing 1 and is movable up and down; In a container for extruding a paste-like material, the casing 1 comprises a clamp member 3 which is attached to the rack member 4 and engages with the rack when the rack member 4 is raised, and disengages from the rack when the rack member 4 is lowered, and is provided with a lifting means for moving the rack member 4 up and down. A through hole 10 is bored in the top wall 6 of the rack member, and a bulging diaphragm 18 is attached to the upper surface of the through hole 10, and when the rack member is raised, the diaphragm 18 is pressed to accumulate elastic force. A paste-like material extrusion container characterized in that a pressing force adding/releasing means for releasing the pressing force when the rack member is lowered is interlocked with the elevating means. 2. A paste-like material extrusion container according to claim 1, wherein the bulging diaphragm 18 is a hemispherical elastic body. 3. The lifting means is composed of a one-piece lever 19 and an arc-shaped cantilever spring 24 provided at the lower part of the lever on the side where the force is applied, and the pressing force addition/removal means is a bending deformation of the spring. A container for extruding a paste-like material according to item 1 or 2. 4. Paste-like material extrusion according to claim 3, wherein the means for applying and removing a pressing force by bending and deforming the arc-shaped cantilever spring 24 includes a protrusion 27 provided at a location where the spring contacts the diaphragm 18. container. 5 Cylindrical casing 1 having discharge hole 7 at the top
a piston 2 that is tightly fitted to the inner wall of the piston 2 and can be slid in the axial direction; a rod-shaped rack member 4 that penetrates the piston 2 and the top wall 6 of the casing 1 and is movable up and down; In a container for extruding a paste-like material, the casing 1 comprises a clamp member 3 which is attached to the rack member 4 and engages with the rack when the rack member 4 is raised, and disengages from the rack when the rack member 4 is lowered, and is provided with a lifting means for moving the rack member 4 up and down. A through hole 10 is bored in the top wall 6 of the casing, a bulging diaphragm 18 is attached to the upper surface of the through hole 10, and a cap 28 for opening and closing the discharge hole 7 by reciprocating rotation is mounted on the upper part of the casing. It is pivotally mounted, and when the rack member is raised, the discharge hole 7 is opened and the diaphragm 18 is pressed to accumulate elastic force, and when the rack member is lowered, the pressure is released and the discharge hole 7 is closed. A container for extruding a paste-like material, characterized in that a cap rotating means and a pressing force adding/removing means are interlocked with the elevating means. 6. A paste extrusion container according to claim 5, wherein the bulging diaphragm 18 is a hemispherical elastic body. 7. The lifting means comprises a one-piece lever 19 and an arcuate cantilever spring 24 provided at the lower part of the lever on the side where the force is applied, and the pressing force addition/removal means is a bending deformation of the spring. 6. A container for extruding a paste-like material according to item 6. 8. Paste-like material extrusion according to claim 7, wherein the means for applying and removing a pressing force due to the bending deformation of the arc-shaped cantilever spring 24 includes a protrusion 27 provided at a location where the spring contacts the diaphragm 18. container.