JPH0343191Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an extrusion container for cosmetics, medicines, and other creamy or viscous liquids.

[Conventional technology]

Conventionally, as shown in FIG. 3, opening and closing of the lid 35 rotates a gear mechanism 36 in which a clutch is inserted, thereby rotating the bottom tube 37 in one direction and engaging the bottom tube 37. A container in which the bottom cylinder 37 is pushed up by a screw mechanism 38 and the contents 40 in the inner cylinder 39 are pushed out a fixed amount from the spout, or as shown in FIG. The cam rod 42 is moved up and down through the
As a result, the ratchet 43 is rotated, the bottom tube 37 is rotated by the ratchet 43, the bottom tube 37 is pushed upward by the screw mechanism, and the contents 40 in the inner tube 39 are pushed out a fixed amount at a time from the spout. This is known as shown in Japanese Utility Model Publication No. 58-25945.

Further, in the extrusion container, a movable plate is housed in the cylinder, and a first non-return claw is provided on the peripheral edge of the movable plate for slidingly contacting the inner wall of the cylinder, and a rod is provided in the center of the movable plate. The rod body is provided with a vertically movable penetrating body, and the rod body is provided with a non-return tooth row, and the movable plate is provided with a second non-return pawl that engages with the non-return tooth row. This is described in Japanese Utility Model Application Publication No. 57-164078.

By moving the rod up and down, the extrusion container allows the moving plate to be moved by the non-return tooth row of the rod and the second non-return pawl of the movable plate that is engaged with the non-return tooth row. It is formed so that it can be moved forward one tooth at a time to push out the contents inside the outer cylinder.

[The problem that the idea aims to solve]

The prior art described in the above-mentioned Japanese Utility Model Publication No. 58-25945 combines a gear mechanism 36 with a clutch and a screw mechanism 38 (Fig. 3), or a cam 41 and a cam rod 42 with a ratchet 43. and a screw mechanism 38 (FIG. 4), the mechanism is complicated and the cost is inevitably high. In order to fill the inner cylinder 39 shown in FIGS. 3 and 4 with the contents, the contents are filled from the spout.
When the spout was formed to have a small diameter suitable for pouring out the contents little by little, it became difficult to fill the contents.

Furthermore, in the extrusion container described in Japanese Utility Model Application Publication No. 57-164078, a movable plate is inserted into the cylinder after the contents are filled, but there is a void at the top of the filled cylinder. This results in air being trapped between the moving plate inserted into the cylinder and the contents.

If the contents are filled up to the end of the opening in the cylinder so that there is no void at the top of the cylinder, the contents will not be pushed out of the cylinder when the transfer plate is inserted into the cylinder. Become.

The technical problem of the present invention is to provide an extrusion container with a simple structure without the above-mentioned complicated mechanism, and to make it easy to fill the container with the contents so that there are no voids inside. do.

[Means to solve the problem]

The present invention provides a lifting rod 7 in which a large number of concave portions 8a and convex portions 8b are alternately and consecutively provided on the inner peripheral edge of the outer cylinder 1.
are installed in a pair facing each other so that they can freely reciprocate up and down, and an operating member 2 is attached to the upper part of the outer cylinder 1.
2 is provided with a pressing piece 23 that is movable up and down and retains a return force so that it can return from below to upward; the lifting rod 7 is locked to this pressing piece 23; 1 is equipped with a spouting cylinder 13 provided with a spout 14, and houses a flexible and stretchable inner cylinder 12, and a lower part of the inner cylinder 12 is formed with a diameter smaller than that of the inner cylinder 12. Cylindrical part 1
6 is provided in a protruding manner, and a bottomed cylindrical portion 21 provided on the bottom member 18 is externally fitted onto this cylindrical portion 16,
A hook 19 is provided on the bottom member 18, and the hook 19, the recess 8a and the protrusion 8b are connected to each other.
This means that the convex portion 8b can ride over the hook 19 downwardly but not upwardly, and the hook 19 is formed to be locked in the recessed portion 8a, and the lower part of the bottom member 18 has a Said outer cylinder 1
A stopper 20 was provided to fit in frictional contact with the inner wall of the container to prevent the bottom member 18 from descending, thereby forming an extrusion container.

[Effect]

In the present invention, in order to fill the inner cylinder 12 with contents,
The contents are injected from a cylindrical body 16 provided at the lower part of the inner cylinder 12 in a state where the inner cylinder 12 is not attached to the outer cylinder 1.

Then, the contents are filled up to the opening of the cylindrical portion 16, and the cylindrical portion 21 of the bottom member 18 is externally fitted and screwed into the cylindrical portion 16, and the opening of the cylindrical portion 16 is closed. Then, this inner cylinder 12 is attached to the outer cylinder 1.

To pour out the contents from this extrusion container, press the pressing piece 23 and push it down.
The lifting rod 7, which is locked to the lever 7, moves downward. In this case, since the hook 19 is fixed to the inner wall of the outer cylinder 1 by the frictional force of the stopper 20, the convex portion 8b of the pulling rod 7 rides over the hook 19 downward.

Next, when the pressing force of the pressing piece 23 is removed, the pressing piece 2
3 returns upward due to its own returning force,
The pulling rod 7 also returns to the upper position. In this case, since the hook 19 is locked in the recess 8a without the protrusion 8b climbing over the hook 19, the hook 19 overcomes the frictional force of the stopper 20 and moves upward. The bottom member 18 is pushed upward and a certain amount of the contents is discharged from the spout 14.

〔Example〕

1 and 2 show an embodiment of the present invention. In this embodiment, a pair of insertion holes 2 are provided near the inner wall of the upper part of an outer cylinder 1 made of synthetic resin, and A holding hole 3 having a groove 4 is provided at the top, and an engaging protrusion 5 and a positioning protrusion 6 are provided on the outer periphery of the upper part.

The operating member 22 made of synthetic resin attached to the upper part of the outer cylinder 1 is integrally provided with a pressing piece 23, and this pressing piece 23 can swing up and down using the end continuous with the operating member 22 as a fulcrum. It also has elasticity so that it can return to its original position. (This pressing piece 23 may be formed separately from the operating member 22, pivoted to the operating member 22, and returned by a spring.
It can also be formed by placing it on a coil spring. ) The pressing piece 23 is provided with a locking portion 24 for locking the lifting rod 7. Further, a portion (not shown) into which the spouting tube 13 is fitted is provided on the inside of the operating member 22, and a discharge port 26 communicating with the spout 14 of the fitted spouting tube 13 is provided on the outside. A guide groove 25, a positioning protrusion 27, and an engaging groove 28 are provided.

The inner cylinder 12 installed in the outer cylinder 1 is formed in a bellows shape and has flexibility and extensibility. For example, even if thin grooves are cut alternately on the inside and outside of the flexible inner cylinder 12,
Any material that allows the inner cylinder 12 to contract when a pressing force is applied may be used. ) A flexible spouting tube 13 is provided at the top of the inner tube 12, with an open spout 14, and a cylindrical portion 16 protruding downward is provided at the bottom of the inner tube 12. .

A bottomed cylindrical portion 21 provided on the bottom member 18 is fitted onto the cylindrical portion 16, and a female thread provided on the cylindrical portion 21 is screwed into a male thread provided on the cylindrical portion 16.
The bottom member 18 is provided with a hook 19 and a stopper 20.

The pulling rod 7 has a sawtooth-like uneven portion 8 formed by a concave portion 8a and a convex portion 8b. (This uneven portion 8 does not necessarily have to be a sawtooth-like uneven portion 8 as shown in the figure, as long as the hook 19 projects diagonally downward, and the upper surface of the protruding portion 8b may be slightly inclined. (Good.) Further, the pulling rod 7 is provided with a stepped portion 11, and a shoulder portion 10 for locking and a protruding portion 9 are provided on the upper portion.

The lid 29 that is fitted onto the operating member 22 includes a protruding guide portion 30, an outlet closing portion 31,
A positioning groove 32 and an engaging protrusion 33 are provided.

Then, the inner cylinder 1 is inserted into the holding hole 3 of the outer cylinder 1.
2, the convex portion 15 provided on the spout tube 13 is fitted into the concave groove 4 of the holding hole 3 and fixed, and the spout tube 13 is inserted into the discharge tube of the operating member 22. The operating member 2 is fitted into a portion communicating with the outlet 26.
2 is fitted onto the upper part of the outer cylinder 1, and the concave groove provided inside the lower part of the operating member 22 is fitted into the engagement protrusion 5 provided on the outer cylinder 1 and fixed.

The lifting rod 7 is inserted into the insertion hole 2, a hook 19 is locked in the recess 8a, and a protrusion 9 provided on the upper part of the lifting rod 7 and a shoulder 10 for locking are engaged.
Then, it is locked by the locking portion 24 of the pressing piece 23.

The stopper 20 is fitted to the inner wall of the outer cylinder 1 so as to come into frictional contact therewith. Further, the lid 29 is fitted onto the operating member 22, and the positioning groove 32 of the lid 29 is
Fits into the positioning protrusion 27 of the operating member 22,
The engaging protrusion 33 of the lid 29 fits into the engaging concave groove 28 of the operating member 22, and the protruding guide portion 30 of the lid 29 fits into the engaging concave groove 28 of the operating member 22.
is inserted into the guide groove 25 of the operating member 22, and the lid 2
9, the discharge port closing portion 31 closes the discharge port 26.

In this extruded container, when the pressing piece 23 is pressed to push the lifting rod 7 downward, the hook 1 of the bottom member 18 held by the frictional force of the stopper 20 is released.
9, the convex portion 8b of the lifting member rod 7 rides over the hook 19, and the hook 19 is locked in the concave portion 8a located above it.

Next, when the pressing of the pressing piece 23 is stopped, the pressing piece 23
returns to its original position and pulls the lifting rod 7 upward. At this time, since the hook 19 is locked in the recess 8a, it moves upward together with the lifting rod 7, compressing the inner cylinder 12 and discharging a certain amount of the contents from the discharge port 26.

[Effect of idea]

The present invention requires only the pulling rod, hook, and stopper members to convert the movement of the pressing piece into compressive force of the inner cylinder, so it has an extremely simple structure, is low in cost, and It is less likely to break down and can be made compact.

Since the cylindrical part 16 is provided at the lower part of the inner cylinder 12, the cylindrical part 16 can be formed to have a large diameter that makes it easy to fill the contents. The portion 16 is formed to have a smaller diameter than the inner cylinder 12 and is formed so that the bottomed cylindrical portion 21 provided on the bottom member 18 is fitted onto the outside, so that the contents can be transferred to the cylindrical portion 16. Even if the opening is filled, the contents will not be pushed out.
6 can be closed, and no air remains in the inner cylinder 12 and the cylindrical part 16.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional front view of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the same, Figs.
The figure is a sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Outer cylinder, 7... Pulling rod, 8a... Recessed part, 8b... Convex part, 12... Inner cylinder, 13... Spout tube, 14... Outlet, 16... Cylindrical part, 18 ……
Bottom member, 19... Hook, 20... Stopper, 2
1... Cylinder part, 22... Operating member, 23... Pressing piece.

Claims (1)

[Scope of utility model registration request] At the inner circumferential edge of the outer cylinder 1, a pair of lifting rods 7, each having a plurality of alternating concave portions 8a and convex portions 8b, are installed so as to be able to reciprocate up and down. The attached operating member 22 is provided with a pressing piece 23 that is movable up and down and retains a return force so that it can return from below to upward. In the outer cylinder 1, there is provided a spouting cylinder 13 provided with a spout 14, and a flexible and stretchable inner cylinder 12 is housed. A cylindrical portion 16 formed with a small diameter is provided to protrude, and a bottomed cylindrical portion 21 provided on the bottom member 18 is externally fitted onto the cylindrical portion 16. , a hook 19 is provided, and the hook 19, the recess 8a and the protrusion 8b are connected to the protrusion 8.
b can ride over the hook 19 downwardly but not upwardly, and the hook 19 is formed to be locked in the recess 8a, and the lower part of the bottom member 18 is provided with the outer tube 1. An extrusion container provided with a stopper 20 that fits in frictional contact with the inner wall to prevent the bottom member 18 from descending.