JPH05139467A - Packing container which pushes constant volume of very viscous and jellied liquid - Google Patents

Abstract

PURPOSE:To disolve problems such as injection of content due to deformation of a continer and partial cracking of a body at a time of unexpected and undesired application of external pressure and dry-up of the content due to the cracking. CONSTITUTION:When a pressing nozzle 2 is pressed against a place where content is desired to coat, an inner cylinder case 1 moves rearward. At this time, if a movable packing 3 fixed at a rear end, while compressing a compression coil spring 6, approaches to a fixed packing 4 on opposite side, a plunger 5 inserted into a case 1 does not slide back together with the case 1, because a check rack 7a of a delivery rod 7 fixed at a back of the plunger 5 cannot go over a tapered through hole of the packing 4 in the reverse direction. As a result, the plunger 5 slides forward in the case 1 by one pitch P, decreasing volume of the case 1 and increasing pressure of the content, and therefore, the content is pushed out through the pressing nozzle 2 at a tip end now opened by a constant volume corresponding to the one pitch P through the pressing nozzle 2 at a tip end now opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a quantitative extrusion package in which a wide range of high-viscosity and jelly-like liquids such as adhesives, dentifrices, shoe polishes, pigments, greases and foods containing seasonings are filled inside. Regarding the container.

[0002]

2. Description of the Related Art Packaging containers for high-viscosity and jelly-like liquids of this type and conventional commercially available adhesives and dentifrices are usually made of a metal laminated tube such as aluminum,
When squeezing out the filled contents, after removing the cap that blocks the extrusion port of the metal laminate tube, grasp the body part of the metal tube with fingers or palm and apply external pressure to the whole, The high-viscosity and jelly-like liquid is compressed and extruded through the open extrusion port.

[0003]

However, in the conventional high-viscosity and jelly-like liquid packaging container, as described above, the metal laminate tube is made of a flexible material such as aluminum so that external pressure can be easily applied with the fingers or the palm. Since it is molded from a substance, it is easy to deform even when unintentional or careless external pressure is applied, such as stepping on it, and its outer shape often becomes distorted over the course of use, and in severe cases it is a metal laminate. A crack is generated in a part of the body of the tube, the contents spout out, and the outside air penetrates into the inside from the crack, and the contents are still dry but unusable. Sometimes it was.

In particular, when the cap is not attached,
When an unexpected external pressure is applied as described above, a large amount of contents may be ejected from the extrusion port and stain the surrounding area.In particular, if you are carrying a toothpaste or other material on a trip, etc., in a bag or pocket. The contents leak out and it becomes a big problem. Even at the time of use, it is difficult to control the extrusion amount of the contents and it is not constant, and it is necessary to waste the contents too much, or it is necessary to redo many times without giving the desired amount. It was

In addition, when the contents are located in the metal laminate tube in a deviated position, the contents had to be once guided to the vicinity of the extrusion port and then squeezed out, which was troublesome. Here, the present invention is to provide a high-viscosity and jelly-like liquid quantitative extrusion packaging container that overcomes the problems of the conventional laminated tube.

[0006]

The solution to the above-mentioned problems can be achieved by adopting the novel characteristic construction means enumerated below by the present invention. That is, a first feature of the present invention is that an outer case in which a rear barrel is connected to the rear end of the front barrel in a separable manner, and an axially slidable housing is housed in the front barrel to the front portion. An internal cylinder case for filling contents, in which a projecting extrusion nozzle projects outwardly from the front opening of the front barrel so as to move in and out, and an integral rear end of the internal cylinder case, which is integrally fitted and has circumferential grooves at equal intervals. A movable packing having a tapered tapered through hole formed at the center, and a required stroke interval with respect to the movable packing. A fixed packing having a tapered tapered through hole cut in the central portion thereof, and non-return rack teeth projecting at equal axial pitch intervals shorter than the stroke interval, and the movable packing and the fixed packing. Axial forward pitch movement over tapered through hole The feeding rod inserted therethrough, the plunger fixed to the tip of the feeding rod and fitted in the interior cylinder case so as to be slidable in the axial direction, and the stroke interval between the movable packing and the fixed packing. A high-viscosity and jelly-like liquid constant-volume extrusion packaging container including an elastic body that elastically biases the habit of the extrusion nozzle constantly protruding from the front opening of the front barrel with respect to the internal cylinder case through the interposition. ..

A second feature of the present invention is a high-viscosity and jelly-like liquid quantitative extrusion packaging container in which the movable packing and the fixed packing in the first feature are elastically deformable hard plastic or hard rubber.

A third feature of the present invention is that the first or second
The elastic body having the feature (1) is a high-viscosity and jelly-like liquid constant-volume extrusion packaging container which is a compression coil spring or an elastic sponge.

A fourth feature of the present invention is that an outer case in which a front part of a rear knock shaft cylinder is fitted in a rear end of the front shaft cylinder so as to be slidable in the axial direction, and is fixed in the front shaft cylinder. An internal cylinder case for filling the contents, in which an extruding nozzle that is housed and protrudes to the front end projects from the front opening of the front barrel, is integrally fitted to the open rear end of the internal cylinder case, and is divided at equal intervals around the periphery. A fixed packing that has a tapered tapered through hole formed by cutting a groove in the center, and a fixed stroke interval with respect to the fixed packing that is slidable in the axial direction so as to be slidable in the axial direction. Movable packing that is integrally fitted to the open front end and that has tapered tapered through holes that have split grooves cut into the peripheral edge at equal intervals in the central part, and a non-return rack at equal axial pitch intervals shorter than the stroke interval. The teeth of the fixed packing and the movable packing. A feeding rod that penetrates through the perforation hole so as to be movable in the axial forward pitch, a plunger fixed to the tip of the feeding rod and axially slidably fitted in the interior cylinder case, and the fixed packing. A high-viscosity and jelly-like product characterized by comprising an elastic body which constantly urges the rear barrel from the rear end of the front barrel by constantly urging the habit of going out with respect to the rear barrel by interposing the stroke distance from the movable packing. Liquid quantitative extrusion packaging container

A fifth feature of the present invention is a high-viscosity and jelly-like liquid quantitative extrusion packaging container in which the movable packing and the fixed packing in the fourth feature are made of elastically deformable hard plastic or hard rubber.

A sixth feature of the present invention is the fourth or fifth aspect.
The elastic body having the feature (1) is a high-viscosity and jelly-like liquid constant-volume extrusion packaging container which is a compression coil spring or an elastic sponge.

[0012]

The present invention has taken the above-mentioned means. Therefore, in order to push out the high-viscosity and jelly-like liquid inside, the outer case is gripped and the tip of the extrusion nozzle is pressed against the attachment point, or the rear shaft is pushed. The cylinder is pushed or pushed to press the plunger fitted in the inner cylinder case in the forward direction, and the high viscosity and jelly-like liquid inside is quantitatively extruded from the extruding nozzle at the tip of the inner cylinder case.

[0013]

Embodiments of the present invention will be described in detail with reference to the drawings. (First Embodiment) FIG. 1 is a side view of a central longitudinal section showing the internal structure of the first embodiment, FIG. 2 is a rear view of the same, FIG. 3 is a side sectional view of an enlarged central vertical section of the same, and FIG. 4 is a movable packing. (I) is an enlarged central vertical sectional view, (II) is an enlarged front view, (III) is an enlarged rear view, and FIG. 5 is an enlarged side view of the feeding rod.

As shown in FIG. 1, the outer case a is a front barrel a.
It is composed of two members, 1 and a rear barrel a2, which can be separated when necessary. Further, the internal cylinder case 1 having a high viscosity such as an adhesive and a jelly-like liquid α filled therein has a tapered portion 1a squeezed in the forward direction and a front end extrusion nozzle 2 of the outer case a, a front barrel a1 and a front opening a3 outside. It projects and opens, and is accommodated in the front case cylinder a1 of the outer case a so as to be slidable in the axial direction.

A movable packing 3 is integrally fitted inside the open rear end of the internal cylinder case 1, and the movable packing 3 has an outer diameter of the internal cylinder case 1 as shown in FIG.
Of the inner cylinder case 1 and a fitting portion 3'having the same diameter as the inner diameter of the inner cylinder case 1 is projected on the front side of the inner cylinder case 1.
Inserted and fitted from the open rear end. The locking portion 3 ″ that projects from the rear side fixes the compression coil spring 6. In the figure, a4 is the blind end of the rear barrel a2.

Further, in the center of the movable packing 3, there is formed a tapered tapered through hole 3a penetrating the feeding rod 7, and the diameter of the rear side hole end 3a 'of the tapered through hole 3a is shown in FIG. The diameter of the front side hole end 3a ″ is smaller than that of the topmost portion 7a ′ of the non-return rack teeth 7a protruding on the opposite side from the outer peripheral surface 7b of the feeding rod 7. The taper through holes 3a are formed so as to have a diameter, and the dividing grooves 3b are cut into the taper through holes 3a at regular intervals of 90 °.

As a material, for example, hard plastic such as polyethylene, polypropylene, nylon, polyacetal, or elastically deformable material such as hard rubber is used, so that the feeding rod is provided in combination with the provision of the split groove 3b group. The non-return rack teeth 7a of FIG. 7 can also pass through the topmost portion 7a 'of the taper through hole 3a having a smaller outer diameter, and the front hole end 3a "can be inclined forward and downward. Side right-angled triangle Non-return rack tooth 7a Slope 7a "
After the uppermost portion 7a 'finally passes while expanding with the expansion of the split groove 3b, the hole end 3a "of the tapered through hole 3a elastically returns to the original outer peripheral surface 7b and the non-return rack tooth. It prevents the return of 7a.

The fixed packing 4, which is opposed to the movable packing 3 with a required stroke distance d, has the tapered through holes 3a in the movable packing 3 in the opposite directions from the front side to the back side, and The outer diameter is the same as the inner diameter of the mounting portion of the front case cylinder a1 of the outer case a, and it also has a split groove 4b and is the same as the movable packing 3, and is fitted to the open front end of the rear case cylinder a2. The joint portion 4'is integrally fitted and fixed. As shown in FIG. 5, the feeding rod 7 is provided with check rack teeth 7 at regular intervals P from the front end to the rear end.
a is projected.

In the present embodiment, the non-return rack teeth 7a are two pairs on the opposite side of the outer peripheral surface, but the present invention is not limited to this.
Also, the shape is a right-angled triangular side surface, but any shape having a check function may be used. The material of the feeding rod 7 is, for example, a metal such as stainless steel or a non-elastic rigid plastic, and the feeding rod 7 in the tapered through holes 3a and 4a penetrating the movable packing 3 and the fixed packing 4 is formed. The front side hole ends 3a "and 4a" having an inner diameter smaller than that of the topmost portion 7a 'of the non-return rack tooth 7a can be spread and passed.

The delivery rod 7 extends vertically through the movable packing 3 and the fixed packing 4, and a plunger 5 is fixed to the leading end thereof. Further, a compression coil spring 6 is interposed between the movable packing 3 and the fixed packing 4 and surrounds the feeding rod 7. Both ends of the compression coil spring 6 are fixed to the locking portions 3 "and 4" of the movable packing 3 and the fixed packing 4, respectively.

As the material of the compression coil spring 6, an elastic member such as metal or plastic is used, but as an alternative, a hard elastic rubber or a sponge of independent foam may be formed into a cylindrical shape. Plunger 5
Is for sliding the inside of the interior cylinder case 1 to the extrusion nozzle 2 side by axially advancing movement of the feeding rod 7 having the rear end of the interior cylinder case 1 sealed therein and the tip fixed to the back surface. Due to the movement, an external pressure is applied to the contents of the highly viscous and jelly-like liquid α filled in the interior cylinder case 1 to push the contents out of the extrusion nozzle 2.

Since the high-viscosity and jelly-like liquid quantitative extrusion packaging container A of this embodiment exhibits such a specific embodiment, the operation of extruding its contents will be described below. First,
The outer case a of the high-viscosity and jelly-like liquid constant-volume extrusion packaging container A is gripped, and the tip of the extrusion nozzle 2 of the inner cylinder case 1 with the protruding tip is pressed to the place where the contents are to be applied.

Since the inner cylinder case 1 is not fixed to the outer case a, the inner cylinder case 1 relatively moves backward in the outer case a as opposed to the outer case a which is pushed forward, and the inner cylinder case 1 is moved. Fixed packing 4 that also holds movable packing 3 fixed to the rear end of case 1
To approach against the elastic force of the compression coil spring 6 and move backward while compressing.

At this time, the rear end of the feeding rod 7 abuts on the blind end a4 of the rear barrel a2 or the check rack 7a and the tapered through hole 4a are engaged with each other to prevent the feeding rod 7 from moving backward. As a result, the tapered through hole 3 of the movable packing 3
a is a feeding rod 7 from the rear-side hole end 3a 'having a large hole diameter.
At the same time as the non-return rack tooth 7a is moved forward by one pitch P by one tooth, the plunger 5 fixed to the tip of the feeding rod 7 is relatively slid forward in the interior cylinder case 1 in the axial direction. The internal cylinder case 1 has a reduced internal volume, and the content pressure increases,
The content is extruded by a fixed amount corresponding to one pitch P from the extrusion nozzle 2 at the open tip.

After pushing out the contents, the compression coil spring 6
When the stroke distance d between the movable packing 3 and the fixed packing 4 is restored by the elastic restoring force of
Due to the non-return engagement between the non-return rack teeth 7a and the taper through hole 3a, the feeding rod 7 is forced to move forward due to the return movement of the movable packing 3, and the non-return rack through the taper through hole 4a of the fixed packing 4. The tooth 7a passes by one tooth and similarly passes by one pitch P.

Therefore, when the extrusion nozzle 2 is next pressed against the portion where the contents are to be applied, the internal cylinder case 1 moves rearward, and the movable packing 3 fixed to the rear end compresses the compression coil spring 6 and relatively moves. When approaching the fixed packing 4, the plunger 5 fitted in the internal cylinder case 1 has the check rack teeth 7a of the feeding rod 7 fixed to the back surface from the reverse side of the tapered through hole 4a of the fixed packing 4. Therefore, the plunger 5 can be slid forward by 1 pitch P in the interior cylinder case 1 relatively without moving backward together with the interior cylinder case 1.

(Second Embodiment) FIG. 6 is a central longitudinal side view showing an internal structure of the second embodiment, FIG. 7 is a rear view of the same, and FIG. 8 is an enlarged central vertical side view of the same. In the figure, A'is a high-viscosity and jelly-like liquid quantitative extrusion packaging container, a'is an outer case, and a2 'is a rear knock barrel. The same members as those in the first embodiment are designated by the same reference numerals.

The difference between this embodiment and the first embodiment is that in the first embodiment, as shown in FIG. 1, the inner cylinder case 1 is on the inner surface of the front barrel a2 'of the outer case a'. Although not fixed, it can slide forward and backward, but in this embodiment, as shown in FIG. 6, it is fixed near the extrusion nozzle 2 and cannot slide forward and backward in the axial direction. The internal cylinder case 1 on the sliding side in the embodiment.
Instead of this, in this embodiment, the front part of the rear knock shaft cylinder a2 'is slidable back and forth so that the front part cylinder a1' of the outer casing a'is slidable.
This is the point of insertion from the rear end side. Except for these points, the third embodiment is the same as the first embodiment and will not be described in detail.

In this embodiment, the packing fitted to the rear end of the inner cylinder case 1 fixed to the front barrel a1 'of the outer case a'is naturally the front barrel a of the outer case a'.
Since it does not slide forward and backward with respect to 1 ', it is used as a fixed packing 4, and the packing fitted to the tip of the rear knock shaft cylinder a2' slides integrally with the sliding motion of the rear knock shaft cylinder a2 '. Therefore, the movable packing 3 will be used.

Since the high-viscosity and jelly-like liquid packaging container A'in this embodiment exhibits such a concrete embodiment, the operation of pushing out its contents will be described below. First, the outer casing a'of the high-viscosity and jelly-like liquid packaging container A'is held, and the extrusion nozzle 2 of the inner cylinder case 1 protruding from the front opening a3 'of the front barrel a1' is to be coated with the contents. Face up and push the rear knock cylinder a2 'with the thumb or forefinger just as when the core of the mechanical pencil is taken out.

Since the rear knock cylinder a2 'is not fixed to the front cylinder a1' of the outer case a ',
A fixed packing 4 that moves relatively forward in the front barrel a1 'of the outer case a'and also relatively holds the movable packing 3 fixed to the front end of the rear knock barrel a2'.
To approach the compression coil spring 6 and move forward while compressing.

At this time, the rear end of the feeding rod 7 abuts on the blind end a4 'of the rear knock shaft cylinder a2' or the check rack 7a.
And the taper through hole 3a are connected in a non-returning manner to feed the rod
As a result, the tapered through hole 4a of the fixed packing 4 fixed to the rear end of the internal cylinder case 1 has one non-return rack tooth 7a of the feeding rod 7 from the rear side hole end 4a 'having a large hole diameter. At the same time as it passes the minute, the plunger 5 fixed to the tip of the feeding rod 7 relatively slides forward by 1 pitch P in the interior cylinder case 1, and the contents of the interior cylinder case 1 The product decreases, the pressure of the content increases, and the content is extruded by a fixed amount corresponding to 1 pitch P from the extrusion nozzle 2 at the open tip.

After pushing out the contents, the compression coil spring 6
When the stroke distance d between the movable packing 3 and the fixed packing 4 is restored by the elastic restoring force of
The movable packing 3 is forced to return even though the backward movement of the feeding rod 7 is prevented by the non-return connection of the non-returned rack teeth 7a and the tapered through hole 4a, and the tapered through hole 3a of the movable packing 3 is forced. Passes over the non-return rack tooth 7a by one tooth and similarly passes by one pitch P. It is sent in this way.

Therefore, when the rear knock cylinder a2 'is pushed next time, the rear knock cylinder a2' moves forward and the movable packing 3 fixed to the front end compresses the compression coil spring 6 against the elastic force. On the other hand, when approaching the fixed packing 4 which is relatively opposed, the plunger 5 fitted in the interior cylinder case 1 has the check rack teeth 7a of the feeding rod 7 fixed to the back surface, and the check rack teeth 7a of the movable packing 3 are tapered. Hole 3a
Therefore, the plunger 5 can be relatively slid forward by one pitch P in the internal cylinder case 1 without being returned by the reaction force.

[0035]

As described above, according to the present invention, like a metal laminated tube used as a conventional high-viscosity and jelly-like liquid packaging container, a flexible material such as aluminum is used so that external pressure can be easily applied with a finger or palm. Since it is not molded with any other material, it does not easily deform even when it is inadvertently pressed, such as when it is stepped on, and it is difficult to deform even when a conventional metal laminate tube is used. There is no fear that the contents will be spouted and the outside air will penetrate into the inside through the cracks to dry the contents and render them unusable.

Further, in order to push out the contents, it is necessary to push in the extrusion nozzle at the tip of the inner cylinder case or to press the rear knock shaft cylinder of the outer case in the forward direction to the place where the contents are to be applied. Therefore, even when an unexpected external pressure is applied, unlike the conventional metal laminate tube, the contents do not fly out of the extrusion nozzle and stain the surroundings. Further, according to the present invention, by adopting the cylinder plunger mechanism, the contents can be extruded and applied to the ceiling surface and the vertical surface, and the extruded contents can be extruded depending on the number of times the outer case or the rear knock shaft cylinder is pushed. It has excellent practicability and usefulness such as adjustable amount.

[Brief description of drawings]

FIG. 1 is a side view of a central longitudinal section showing an internal structure of a first embodiment of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is an enlarged central vertical sectional view of the main part of the same.

[FIG. 4] (I) of the movable packing is an enlarged central vertical sectional view, (II)
Is an enlarged front view and (III) is an enlarged rear view.

FIG. 5 is an enlarged side view of a payout rod.

FIG. 6 is a central longitudinal side view showing the internal structure of the second embodiment of the present invention.

FIG. 7 is a rear view of the same.

FIG. 8 is an enlarged central vertical cross-sectional view of the same as above.

[Explanation of symbols]

 A, A '... High-viscosity and jelly-like liquid quantitative extrusion packaging container a, a' ... Exterior case a1, a1 '... Front shaft cylinder a2 ... Rear shaft cylinder a2' ... Rear knock shaft cylinder a3, a3 '... Front port a4, a4 '... Blind end 1 ... Internal cylinder case 2 ... Extrusion nozzle 3 ... Movable packing 3a, 4a ... Tapered through hole 3b, 4b ... Split groove 3a'4a' ... Rear side hole end 3a ", 4a" ... Front side Hole end 4 ... Fixed packing 5 ... Plunger 6 ... Compression coil spring 7 ... Delivery rod 7a ... Non-return rack tooth 7a '... Top part α ... High viscosity and jelly-like liquid d ... Stroke interval P ... Pitch

Claims (6)

[Claims] 1. An exterior case in which a rear barrel is separably connected to the rear end of the front barrel, and an extrusion nozzle housed in the front barrel so as to be slidable in the axial direction and protruding toward the front. An internal cylinder case for filling contents, which projects outwardly from the front opening of the front shaft cylinder, and an end which is integrally fitted to the open rear end of the internal cylinder case and is provided with split grooves at equal intervals around the periphery. A movable packing having a tapered tapered through hole formed in the central portion thereof, and a tapered front end which is fixed to the movable packing relative to the movable packing and is fixed in the outer case relative to each other, and with split grooves cut at equal intervals around the periphery. A fixed packing having a central tapered through hole and a check rack tooth projecting at an axial equal pitch interval shorter than the stroke interval and extending over the movable packing and the tapered through hole of the fixed packing. Axial forward pitch Can be inserted freely The delivery rod, a plunger fixed to the tip of the delivery rod and fitted in the interior cylinder case so as to be slidable in the axial direction, and interposed between the movable packing and the fixed packing over the stroke interval. A high-viscosity and jelly-like liquid constant-volume extrusion packaging container, characterized in that the extrusion nozzle is composed of an elastic body that elastically biases the tendency of the extrusion nozzle to constantly project from the front opening of the front barrel relative to the internal cylinder case. 2. The high-viscosity and jelly-like liquid quantitative extrusion packaging container according to claim 1, wherein the movable packing and the fixed packing are made of elastically deformable hard plastic or hard rubber. 3. The high-viscosity and jelly-like liquid quantitative extrusion packaging container according to claim 1 or 2, wherein the elastic body is a compression coil spring or an elastic sponge. 4. An exterior case in which a front part of a rear barrel is fitted in a rear end of the front barrel so as to be slidable in the axial direction, and an extrusion fixedly housed in the front barrel and protruding to the front. An internal cylinder case for filling contents, which projects a nozzle from the front opening of the front barrel, and a tapered front end that is integrally fitted to the open rear end of the internal cylinder case and has split grooves cut at equal intervals around the periphery. And a fixed packing having a tapered through hole formed in the center thereof, and a fixed stroke interval with respect to the fixed packing so as to be slidable in the axial direction and integrally fitted to the open front end of the rear barrel. Movable packing that has a tapered tapered through hole in which a split groove is cut at equal intervals on the peripheral edge and penetrates in the center, and non-return rack teeth project at axial equal pitch intervals shorter than the stroke interval and fixed Axial advance over the tapered through hole of the packing and the movable packing Of the feeding rod inserted through the feeding rod, a plunger fixed to the tip of the feeding rod and fitted in the interior cylinder case so as to be slidable in the axial direction, and the stroke of the fixed packing and the movable packing. A high-viscosity and jelly-like liquid constant-quantity extrusion packaging container comprising an elastic body for elastically urging the rear barrel from the rear end of the front barrel to constantly stay out of the rear barrel with a space therebetween. 5. The high-viscosity and jelly-like liquid quantitative extrusion packaging container according to claim 4, wherein the movable packing and the fixed packing are made of elastically deformable hard plastic or hard rubber. 6. The high-viscosity and jelly-like liquid quantitative extrusion packaging container according to claim 4 or 5, wherein the elastic body is a compression coil spring or an elastic sponge.