JP3882131B2 - Double cylindrical container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double cylindrical container formed of a thin synthetic resin container body and a paper reinforcing cylinder fitted to the outer surface of the body part of the container body.
[0002]
[Prior art]
As this kind of container, there is one described in Japanese Utility Model Laid-Open No. 7-22968, and the container is fitted with a synthetic resin thin-walled container body having a plurality of recesses formed on the outer surface of the body part and the outer surface of the body part of the container body. A lower wall having a recessed portion at the front end of the flap by a restoring force of the flap itself. The paper cylinder is provided so that it does not come out downward from the outer surface of the container body by being brought into contact with a part, and the upper end of the paper cylinder is engaged with a downward stepped portion formed on the upper outer surface of the container body. Thus, the paper tube is provided so as not to come out upward from the outer surface of the container body.
[0003]
[Problems to be solved by the invention]
Since the double cylindrical container of the above-mentioned conventional example has to be fitted into the paper cylinder from above the paper cylinder in a state where the folding flap is pushed diagonally downward and inward, the inside of the paper cylinder must be fitted into the paper cylinder. When the container body is fitted, the folding flap becomes an obstacle, and therefore it is difficult to tightly fit the container body to the inner surface of the paper tube, and the container body is inserted into the paper tube. Prior to the fitting, it was troublesome to fold the folding flap inward and downward in advance.
[0004]
In the present invention, the cross-sectional shape of the thin-walled container body and the paper tube is the same polygonal shape, and recesses are formed in the corners of the thin-walled container body, and separated into the paper tube portion outside the recesses. A double cylindrical container can be easily manufactured, and a paper tube can be easily manufactured by forming a wire and making an engagement plate that inserts a portion of the tube wall of the paper tube into the recess to prevent the paper tube from being pulled out. It provided so that it might not escape from the outer surface of the trunk of the thin container.
[0005]
[Means for Solving the Problems]
As a first means, a cap 7 is fitted to the outer surface of the mouth neck 4 that rises from the upper end of the body 2 having a polygonal cross-sectional shape, and a recess is formed in one of a plurality of corners of the body 2. 5 from the apex portions of the triangular upper and lower walls of the concave portion, and the second and first engaging protrusions 6b, 6a downward and upward between the rear wall 5a of the concave portion 5 It comprises a thin container body 1 projecting with a small gap, and a reinforcing paper tube 8 having the same cross-sectional shape as that of the body part 2 fitted to the outer surface of the body part 2 of the thin container body. Piercing lines 9 and 9 are formed on both the upper and lower sides of the reinforced paper tube octagonal portion, and the reinforced paper tube portion 8a between these detachment lines is inverted into the recess 5 so that the reinforced paper tube portion the 8a is brought into contact to the rear wall 5a, the upper and lower both parts of the reinforcing sheet tube portion 8a second, first engaging projection 6b, 6a and the rear wall 5a Characterized in that is fitted into the small gap in between.
[0006]
As a second means, the cap 7 is fitted to the outer surface of the mouth-and-neck portion standing up from the upper end of the body portion 2 having a polygonal cross-sectional shape, and the recess portion 5 is formed in any one of a plurality of corner portions of the body portion 2. A thin-walled container body 1 in which engagement protrusions 10 and 10 are vertically arranged in parallel on the left and right sides of the rear wall 5a of the recess,
Formed with the reinforcing paper tube 8 having the same cross-sectional shape as the trunk portion, fitted to the outer surface of the trunk portion 2 of the thin-walled container body,
The U-shaped separating lines 11 and 11 are formed on both left and right sides of the reinforcing paper cylinder 8 outside the recess 5 so as to be symmetrical with the ridgeline of the two corners of the body portion and the free ends away from each other. Then, the reinforcing paper cylinder 8 between the upper and lower cut-off line portions is formed as the folding flaps 12 and 12, and these folding flaps are bent into the recess 5 so that the free ends of the both folding flaps are engaged with the projecting ridges. 10 and 10 were engaged with each of the opposite side surfaces.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The container of the present invention comprises a thin container body 1 made of synthetic resin and a reinforcing paper cylinder 8, and the thin container body 1 of the first embodiment shown in FIGS. 1 to 3 has a barrel having a substantially square cross-sectional shape. The mouth and neck portion 4 is erected from the upper end of the portion 2 via the downward stepped portion 3, and the concave portion 5 is formed in any one of a plurality of corner portions of the trunk portion 2. As shown in FIG. 2a, the concave portion has a rear wall 5a that is bent in a concave shape, and upper and lower walls in a plane triangle shape, and has a flat sector shape in which the rear surface is bent in a convex shape from the apex portion of the lower wall. The first engaging protrusion 6a protrudes upward with a small gap from the lower outer surface of the rear wall 5a, and, as shown in FIG. A second engaging projection 6b having the same shape as the mating projection 6a is provided in a downward projecting manner with a small gap from the upper outer surface of the rear wall 5a. Further, the peripheral wall of the cap 7 is screwed onto the outer surface of the mouth / neck portion 4.
[0008]
The reinforcing paper cylinder 8 is a cylinder body having an upper and lower side opening and a substantially square cross-sectional shape. The reinforcing paper cylinder 8 is fitted to the outer surface of the body portion 2 of the thin container body, and the upper end of the cylinder wall is brought into contact with the downward stepped portion 3. Further, separating lines 9, 9 are drilled in parallel on the upper and lower sides of the cylindrical wall corner portion on the outside of the recess 5, and as shown in FIGS. 3a and 3b, a reinforcing paper tube portion between these separating lines. 8a is inverted into the concave portion 5, the inner surface of the reinforcing paper tube portion 8a is brought into contact with the outer surface of the rear wall 5a of the concave portion, and the upper and lower portions of the reinforcing paper tube portion 8a are connected to the first and second portions. The reinforcing protrusions 6a and 6b are formed so as to be engaged with the rear surfaces of the reinforcing paper tube portions 8a so as to maintain the inverted state.
[0009]
When the container of the first embodiment is assembled, from the state shown in FIG. 1, the reinforcing paper tube 8 is fitted to the outer surface of the body portion 2 of the thin container body, and then the reinforcing paper tube portion between the separating lines 9 and 9 8a is inverted into the recess 5, and the upper and lower portions of the reinforcing paper tube portion 8a are engaged with the rear surfaces of the first and second engaging protrusions 6a and 6b.
[0010]
4 to 6 show a second embodiment of the container of the present invention, and only the parts different from the first embodiment will be described, and the parts having the same structure are denoted by the same reference numerals and the description thereof is omitted. .
[0011]
The concave portion 5 is formed in any one of a plurality of corners of the body portion 2 of the thin container body, and as shown in FIG. 4, the engaging ridges 10, 10 are formed on the left and right sides of the rear wall 5a of the concave portion. Are installed vertically in parallel.
[0012]
The reinforcing paper cylinder 8 is symmetrical with U-shaped separating lines 11 and 11 on the left and right sides of the reinforcing paper cylinder portion outside the recess 5 with the ridgelines at the two corners of the body part and the free ends away from each other. The reinforcing paper tube portion between the upper and lower separating line portions is formed as folding flaps 12 and 12, and as shown in FIG. 6, these folding flaps are bent into the concave portion 5 to be folded in both directions. The free ends of the flaps 12 and 12 are engaged with the respective side surfaces of the engaging ridges 10 and 10 facing each other.
[0013]
When assembling the container of the second embodiment, from the state shown in FIG. 4, the reinforcing paper tube 8 is fitted to the outer surface of the body part 2 of the thin container body, and then, as shown in FIG. It is assumed that 12 is bent inward of the recess 5 and the free ends of both folded flaps are engaged with the respective side surfaces of the engaging ridges 10 and 10 facing each other.
[0014]
In the said 1st Embodiment and 2nd Embodiment, although the recessed part 5 was formed in either of the some corner | angular part which the trunk | drum of a thin container body has, as shown in FIG. Each of the recesses 5 may be formed, and this configuration has an advantage that it is not necessary to align the position of the separation line and the recess 5 when the reinforcing paper tube 8 is fitted to the outer surface of the body 2.
[0015]
In each of the above embodiments, the cross-sectional shape of the thin-walled container body is rectangular, but other polygons such as hexagons may be used. In this case, the cross-sectional shape of the reinforcing paper tube 8 is also hexagonal. And
[0016]
When discarding the container of the present invention, the thin-walled container body is crushed and the barrel portion is taken out of the reinforcing paper cylinder 8, or the reinforcing paper cylinder 8 is torn, so that the thin-walled container body and the reinforcing paper cylinder are separated and discarded. To do.
[0017]
【The invention's effect】
The present invention is configured as described above, and in the case of the invention according to claim 1, the concave portion 5 is formed in any one of the plurality of corner portions of the body portion 2 of the thin-walled container body, and the triangular shape of the concave portion. Second and first engaging projections 6b, 6a are projected downward and upward from the apex corners of the upper and lower walls of the shape, and separated from the upper and lower sides of the corner portion of the reinforcing paper cylinder outside the recess 5 Lines 9 and 9 are drilled, and the reinforcing paper tube portion 8a between the separating lines is inverted into the recess 5 so that the upper and lower portions of the reinforcing paper tube portion are first and second engaging projections 6a. 6b, the reinforcing paper tube 8 is fitted to the outer surface of the thin container body 2 from the state shown in FIG. 1, and the separating line 9, as shown in FIGS. By simply reversing the reinforcing paper tube portion 8a between 9 into the recess 5 and engaging the upper and lower portions of the reinforcing paper tube portion 8a with the rear surfaces of the first and second engaging projections 6a and 6b, Heavy cylinder As described above, the reinforcing paper tube portion 8a between the separation lines is inverted into the recess 5, and the upper and lower portions of the reinforcing paper tube portion 8a are first and second engaging protrusions as described above. Since it is engaged with the rear surfaces of the parts 6a and 6b, the reinforcing paper tube 8 does not move up and down or rotate with respect to the thin container body. Further, the reinforcing paper tube 8 can be used as a printing surface on which a product name or a usage description is written.
[0018]
In the case of the invention described in claim 2, the recess 5 is formed in any one of the plurality of corners of the body portion 2 of the thin container body, and the engaging ridges 10 are formed on the left and right sides of the rear wall 5a of the recess. 10 was placed vertically in parallel, and the U-shaped separation lines 11 and 11 were placed on the left and right sides of the reinforced paper tube portion outside the recess 5, and the free ends were kept away from each other with the ridgeline at the two corners of the body. Drilled symmetrically, the reinforcing paper tube part between the upper and lower cut-off line parts is made into folding flaps 12 and 12, and these folding flaps are bent into the recess 5 so that the free ends of the two folding flaps are Since the engaging protrusions 10 and 10 are engaged with the opposing side surfaces, the reinforcing paper tube 8 is fitted to the outer surface of the body portion of the thin container body from the state shown in FIG. 4 and as shown in FIG. Next, the folding flaps 12 and 12 are bent into the recess 5 and the free ends of the both folding flaps are paired with the engaging ridges 10 and 10. The double cylindrical container can be easily manufactured by simply engaging each side surface of the side to be bent, and the folding flaps 12 and 12 are bent into the recess 5 as described above, and the folding flaps 12 and 12 Since the 12 free ends are engaged with the opposite side surfaces of the engaging protrusions 10, 10, the reinforcing paper cylinder 8 does not move up and down or rotate with respect to the thin container body. Further, the reinforcing paper tube 8 can be used as a printing surface on which a product name or a usage description is written.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.
FIG. 2A is an enlarged cross-sectional view of a main part shown in a state where a reinforcing paper tube is fitted, and FIG. 2B is an enlarged vertical cross-sectional view of the main part shown in the same state.
FIG. 3A is an enlarged cross-sectional view of a main part shown in a state in which a reinforcing paper tube portion is inverted, and FIG. B is an enlarged vertical cross-sectional view of the main part shown in the same state.
FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.
FIG. 5 is an enlarged cross-sectional view of a main part shown in a state in which a reinforcing paper tube is fitted.
FIG. 6 is an enlarged cross-sectional view of a main part showing a bent flap in a bent state.
FIG. 7 is a perspective view of a thin container body shown in a third embodiment of the present invention.
[Explanation of symbols]
1 ... Thin container body 8 ... Reinforced paper tube

Claims (2)

A cap 7 is fitted to the outer surface of the mouth neck 4 that rises from the upper end of the body 2 having a polygonal cross-sectional shape, and a recess 5 is formed in any of a plurality of corners of the body 2, From the apex portions of the triangular upper and lower walls of the recess, the second and first engaging protrusions 6b and 6a protrude downward and upward with a small gap between the recess 5 and the rear wall 5a. The thin-walled container body 1 and the reinforcing paper cylinder 8 having the same cross-sectional shape as that of the body section and fitted to the outer surface of the body section 2 of the thin-walled container body. Separation lines 9 and 9 are formed on both upper and lower sides of the corner portion, and the reinforcing paper tube portion 8a between these separating lines is inverted into the recess 5 so that the reinforcing paper tube portion 8a is connected to the rear wall 5a. It is brought into contact to said second upper and lower both parts of the reinforcing sheet tube portion 8a, a first engagement protrusion 6b, the small gap between the 6a and the rear wall 5a Double cylinder-shaped container, characterized in that is fitted to. The cap 7 is fitted to the outer surface of the mouth and neck that rises from the upper end of the body 2 having a polygonal cross-sectional shape, and the recess 5 is formed in any of a plurality of corners of the body 2, A thin-walled container body 1 in which engaging protrusions 10 and 10 are provided in parallel on the left and right sides of the rear wall 5a of the recess;
A reinforced paper tube 8 having the same cross-sectional shape as the barrel portion, fitted to the outer surface of the barrel portion 2 of the thin-walled container body,
The U-shaped separation lines 11 and 11 are formed on the left and right sides of the reinforcing paper cylinder 8 outside the concave portion 5 in a bilaterally symmetrical manner with the ridgelines at the two corners of the body portion and the free ends away from each other. Then, the reinforcing paper cylinder 8 between the upper and lower cut-off line portions is formed as folding flaps 12 and 12, and these folding flaps are bent into the recess 5, and the free ends of the both folding flaps are engaged with the projecting ridges. A double cylindrical container characterized in that it is engaged with each of the opposing side surfaces of 10, 10 respectively.

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