JPH0624385Y2 - Extruding container for filling caulking material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an extrudable container that is filled with a paste-like caulking material and extruded when necessary.

In this specification, the front and rear sides are based on FIG. 1, the front side means the left side of FIG. 1, and the rear side means the opposite side.

Conventional technology and its problems Conventionally, as this type of caulking material filling extruding container, a cylindrical peripheral wall and a closing wall closing one end opening thereof are integrally formed, and a filling discharging nozzle is provided on the closing wall. A container made of a synthetic resin container body and a movable plate slidably fitted in the container body in its axial direction has been used. The container body was manufactured by blow molding or injection molding.

However, in a conventional extrusion-type container having a container body manufactured by blow molding, because of its manufacturing method,
The dimensional accuracy of the outer peripheral surface of the peripheral wall is improved, but the dimensional accuracy of the inner peripheral surface is inevitably deteriorated. When the dimensional accuracy of the inner peripheral surface becomes poor, a gap is created between the peripheral edge of the movable plate and the inner peripheral surface of the peripheral wall, and when the movable plate is advanced and the filler is pushed out of the nozzle, the filler is removed from this gap. There was a problem of leaking backwards. Moreover, in order to prevent this, it is necessary to attach packing to the peripheral edge of the movable plate, or to finish the inner peripheral surface of the peripheral wall after blow molding, which causes a problem of high cost. On the other hand, in a conventional extrusion-type container having a container body manufactured by injection molding, it is necessary to make a draft on the inner peripheral surface of the peripheral wall for the reason of the manufacturing method. Like the container body, there is a gap between the peripheral edge of the movable plate and the inner peripheral surface of the peripheral wall.When the movable plate is advanced and the filler is pushed out from the nozzle, the filler is removed from this gap. There was a problem of leaking backwards. In addition, in order to prevent this, it is necessary to attach packing to the peripheral edge of the movable plate, or to perform finish processing on the inner peripheral surface of the peripheral wall after injection molding to remove the gradient, which increases the cost. was there.

To solve these problems, the container body, the synthetic resin cylindrical barrel and one end opening of the cylindrical barrel is closed,
In addition, it is preferable to form it with a closing plate having a filler discharge nozzle, but in this case, there are the following problems. That is, in the extruded cylindrical cylinder, molecules are arranged in the extruding direction so that it is likely to expand in the radial direction, and when the movable plate is advanced to extrude the filler from the nozzle, the cylindrical cylinder is expanded by the internal pressure and the peripheral wall is expanded. A gap is generated between the inner peripheral surface of the movable plate and the outer peripheral surface of the movable plate, and even in this case, as in the case of the above-mentioned extrusion type container having a blow-molded or injection-molded container body, the filling material has this gap. There was a problem of leaking backward from. Moreover, there is a problem that the cylindrical body is partially deformed and the movable plate is caught by the deformed portion and cannot move from that position. Further, as shown in FIG. 6, when the extrusion container (30) is provided with a cylindrical barrel (33) extruded from synthetic resin,
For example, at one end of it, a recess (3
It is necessary to close the opening by fitting and adhering the closing plate (31) having 1a), but in this case, when the cylindrical barrel (33) expands, the cylindrical barrel ( 33) and closure plate
There was a risk that the adhesive portion with (31) would peel off and the filling material inside would leak from there. Further, in order to prevent the swelling of the cylindrical body, the wall thickness may be increased, but there is a problem that the cost becomes high.

In addition, if all of the caulking material contained in the container is used up and the remaining material is stored, the caulking material enters through various gaps between the peripheral edge of the movable plate and the peripheral wall or the inner peripheral surface of the cylindrical body as described above. There is a problem that the caulking material is oxidized and hardened by the generated air and cannot be used again.

Further, in the conventional extrusion type container, since the peripheral wall of the container body or the cylindrical body is made of synthetic resin, it is not possible to completely prevent the transmission of light, which causes a problem that the quality of the filling is deteriorated. It was In order to solve this problem, it is conceivable to wrap a metal foil around the peripheral wall or the outer periphery of the cylindrical body for the purpose of shielding light, but this can only prevent deterioration of the quality of the filler due to light transmission. However, the problems of the container body as described above cannot be solved.

An object of the present invention is to provide an extruding container for filling caulking material that solves the above problems.

Means for Solving the Problems An extruding container for filling caulking material according to the present invention comprises a cylindrical barrel made of a synthetic resin extruded profile and one end of the cylindrical barrel closed.
And a closing plate having a filler discharge nozzle, a movable plate slidably fitted in the cylinder body in the axial direction thereof, and a paper or a composite material mainly composed of paper, and the eyes of the paper cylinder cylinder It is provided with a light-shielding / reinforcing cylinder tightly covered on the outer periphery of the cylindrical body so as to form a predetermined angle with the extrusion direction of the.

In the above, in order to tightly cover the light-shielding / reinforcing cylinder on the outer periphery of the cylindrical body, the light-shielding / reinforcing cylinder formed in a tubular shape is tightly fitted on the cylindrical body, or the sheet material is attached to the outer peripheral surface of the cylindrical body. It is carried out by winding and joining the winding start end and the winding end end to form a light-shielding and reinforcing cylinder.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Throughout the drawings, the same reference numerals are given to the same parts and the same parts.

Example 1 This example is shown in FIGS. 1 and 2. In FIG. 1, the caulking material filling extruding container (1) is
Cylindrical barrel (2) made of synthetic resin extruded profile, and closing plate (6) closing the front end opening of the cylindrical barrel (2) and having a filler discharge nozzle (3)
A movable plate (4) slidably fitted in the rear end opening of the cylindrical body (2) in the axial direction, and a light-shielding and reinforced cylinder tightly covered on the outer periphery of the cylindrical body (2). (5) and are provided. Then, the caulking material (C) is filled in the container (1).

The cylindrical body (2) is extruded from a synthetic resin such as polyethylene, polypropylene, polyethylene terephthalate, ABS or the like, and has a wall thickness of about 0.2 to 0.7 mm. The recess (6a) of the closing plate (6) has a cylindrical body.
It is fitted in the front end opening of (2) and fixed to the cylindrical body (2). A filler discharge port (7) is formed in the closing plate (6), and a filler discharge nozzle (3) is attached thereto. Outlet (7)
Is usually closed with a membrane piece (8) consisting of an aluminum foil and a plastic film attached to it. The tip of the nozzle (3) is also sealed until the filler is discharged.

As shown in FIG. 2, the light-shielding / reinforcing cylinder (5) is made of a sheet-shaped composite material mainly composed of paper and a plastic film and / or an aluminum foil laminated on each other (see FIG. 2). Of the cylindrical cylinder (2) so that the direction indicated by the broken arrow (A) is orthogonal to the extrusion direction (direction indicated by the broken arrow (B) in FIG. 2) when extrusion molding the cylindrical cylinder (2). It is formed by winding two or more layers around the outer circumference and adhering the end portion of the winding. The maximum thickness is about 1 mm.

Such an extrudable container (1) is used by mounting it on a well-known caulking gun (10) as shown by a chain line in FIG.
First, the tip of the nozzle (3) is cut and the membrane piece (8) is broken with a stick, a needle or the like. Then, when the trigger (11) of the caulking gun (10) is pulled, the sliding rod (12) advances,
The pressing plate (13) fixed to its front end also moves forward. Then,
The movable plate (4) is pushed by the pressing plate (13) and moved forward, and the caulking material (C) is extruded from the tip of the nozzle (3). At this time, the pressure in the container (1) increases, and the cylindrical body (2) tries to expand or deform, but this is suppressed by the light shielding and reinforcing cylinder (5).

In this example, when a sheet-shaped composite material containing a plastic film is used as the light-shielding / reinforcing cylinder (5), the plastic film is placed on the outermost side in order to improve the moisture absorption resistance of the light-shielding / reinforcing cylinder (5). It is good to use it as it is worn. Further, when the sheet-shaped composite material containing aluminum foil is used, the gas barrier property is improved, and the swelling and deformation preventing effects due to the small elongation of the aluminum foil are improved. Further, paper may be used instead of the composite material mainly composed of paper.

Example 2 This example is shown in FIGS. 3 and 4. This container has a light-shielding and reinforcing cylinder made by spirally winding a strip-shaped sheet material around a mandrel,
The configuration is substantially the same as that of the first embodiment except that the grain direction of the paper is inclined with respect to the extrusion direction of the cylindrical body (2).

On the periphery of the closing plate (6) of the extruding container for filling caulking material (20), a flange protruding outward from the outer peripheral surface of the cylindrical body (2).
(6b) is provided. Then, as shown in FIG. 4, the light shielding / reinforcing cylinder (15) is fitted onto the cylindrical cylinder (2) from the rear in a state where a part of the cylindrical cylinder (2) is recessed over the entire length, and the cylindrical cylinder (2) is covered. The light-shielding / reinforcing cylinder (15) is tightly fitted on the cylindrical body (2) by restoring the recessed portion of (2). The front end of the cylindrical body (2) is in contact with the flange (6b).

As the strip-shaped sheet material forming the light-shielding / reinforcing cylinder (15), a strip-shaped paper or a composite material mainly composed of paper and aluminum foil and / or plastic film laminated is used. In this case, the grain direction of the paper is used so as to extend in the longitudinal direction of the strip-shaped sheet material, whereby the grain direction of the paper is inclined at a predetermined angle with respect to the extrusion direction of the cylindrical barrel (2). When using a composite material containing a plastic film as the strip-shaped sheet material,
In order to improve the moisture absorption resistance of 5), it is better to use the plastic film with the outermost one. Furthermore, when a composite material containing an aluminum foil is used, the gas barrier property is improved, and the swelling and deformation preventing effects due to the small elongation of the aluminum foil are improved.

Example 3 This example is shown in FIG. This container differs from that of the first embodiment only in that the light-shielding and reinforcing cylinder is formed by spirally winding a strip-shaped sheet material around a mandrel, and other configurations are substantially the same. Is.

Light-proof and reinforcing tube (16) for extruding container (25) for filling caulking material
An inward folding portion (16a) is provided at the front end of the whole circumference. Then, as in the case of the second embodiment, the cylindrical barrel (2)
With the part of the
6) is fitted on the cylindrical body (2) from the front, and by restoring the recessed part of the cylindrical body (2), the light shielding and reinforcing cylinder (16)
Is tightly fitted onto the cylindrical body (2). The front end portion of the cylindrical body (2) and the recessed portion (6a) of the closing plate (6) are sandwiched by the inward folded portion (16a). The strip-shaped sheet material forming the light-shielding and reinforcing cylinder (16) is the same as that of the second embodiment.

Effect of the Invention The extrusion container according to the present invention is provided with the synthetic resin extruded cylindrical cylinder, so that the dimensional accuracy of the inner peripheral surface can be improved and the inner peripheral surface has a perfect cylindrical surface shape. be able to. Therefore, it is not necessary to perform finishing on the inner peripheral surface or to attach packing to the movable plate as in the case with a conventional blow molded or injection molded container body, which simplifies the manufacturing work and reduces the cost. Become cheap. Further, since the light-shielding / reinforcing cylinder made of paper or a composite material mainly composed of paper is densely covered on the outer periphery of the cylinder, the light-shielding / reinforcing cylinder blocks light to pass through the cylinder. Is prevented. Therefore, it is possible to prevent the quality of the filler from being deteriorated due to the transmission of light. Further, since the light-shielding and reinforcing cylinder is closely covered so that the direction of the eyes of the paper forms a predetermined angle with the pushing direction of the cylindrical body,
Due to the function of the light-shielding and reinforcing cylinder, the expansion and partial deformation of the cylindrical cylinder due to the increase in the internal pressure of the cylindrical cylinder is suppressed.
Therefore, the above-mentioned various problems resulting from the expansion and partial deformation of the cylindrical body are prevented. That is, in the extruded cylindrical cylinder, molecules are arranged in the extruding direction so that it is likely to expand in the radial direction, and when the movable plate is advanced to extrude the filler from the nozzle, the cylindrical cylinder is expanded by the internal pressure and the peripheral wall is expanded. A problem that a gap is created between the inner peripheral surface of the and the outer peripheral surface of the movable plate and the filled caulking material leaks rearward from this gap (a), the cylindrical body is partially deformed, and the movable plate is The problem of being caught in the deformed part and not moving from that position (b), and when all of the caulking material contained in the container is used up and the remaining remains are stored, The occurrence of the problem (c) that the caulking material is oxidized and hardened by the air that has entered through the various gaps formed between the peripheral wall or the inner peripheral surface of the cylindrical body and is hardened and cannot be used again is prevented. It Moreover, the function of the light-shielding / reinforcing cylinder prevents the expansion of the cylindrical cylinder, so that the thickness of the cylindrical cylinder can be reduced and the cost is reduced.

[Brief description of drawings]

1 and 2 show a first embodiment of the present invention,
FIG. 1 is a vertical cross-sectional view of a part of the container, FIG. 2 is a perspective view showing how the outer circumference of a cylindrical body is covered with a light-shielding and reinforcing cylinder, and FIGS. 3 and 4 are a second embodiment of the present invention. FIG. 3 is a vertical cross-sectional view with a part of the container omitted, FIG. 4 is a perspective view showing how the outer circumference of the cylindrical body is covered with a light-shielding / reinforcing cylinder, and FIG. 5 is a third embodiment of the present invention. FIG. 6 is a partially omitted vertical sectional view of the container shown, and FIG. 6 is a partial sectional view showing a conventional example. (1) (20) (25) …… Extrusion container for filling caulking material, (2)…
… Cylindrical cylinder, (3) …… Fill discharge nozzle, (4) …… Movable plate,
(5) (15) (16) …… A light blocking and reinforcing tube, (6) …… A closing plate.

Claims (1)

[Scope of utility model registration request] 1. A cylindrical cylinder made of extruded synthetic resin, a closing plate closing one end opening of the cylindrical cylinder and having a filler discharge nozzle, and slidably fitted in the cylindrical cylinder in the axial direction thereof. It consists of a movable plate and a paper or a composite material mainly composed of paper,
An extruding container for filling caulking material, which further comprises a light-shielding and reinforcing cylinder closely covered on the outer periphery of the cylindrical body so that the grain of the paper forms a predetermined angle with the extrusion direction of the cylindrical body.