JP2001048213A - Body part breakable cap member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body part breakable cap member capable of being easily detached from a container at the time of disposal while ensuring the seal function as a cap and capable of being smoothly fit to the container. SOLUTION: A thin-walled region 23 extending in a strip-like state in an up and down direction so as to traverse the fitting annular part formed to the inside of the outer wall 4 of a cap member is formed on the outer wall 4 of the cap member and a handle piece 22 is formed along the thin-walled part 23 so as to be integrated with the outer wall 4 and extended on the outer wall at the position straddling the thin-walled part 23 to go round the outer wall and integrally molded by a breakable connection part so as to cover the gap between the handle piece 22 and the outer wall 4 from above along the upper edge of the outer wall 4. Since the handle piece 22 goes round the outer wall 4 and the cap member is kept at its center when sent to a capping machine, smooth operation can be performed and the thin-walled region withstands an impact at the time of capping to be prevented from breaking. If the handle piece 22 is held to be pulled at the time of disposal, the connection part and the thin-walled region can be broken to easily separate a container and the cap member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin cap used by fitting it into a container opening of a bottle or the like.
The present invention relates to an improvement of a cap body that can be easily torn off from a container at the time of disposal and that can be broken.

[0002]

2. Description of the Related Art Conventionally, caps widely used as caps for a container mouth are, as shown in FIGS. 8 and 9, a body 1 fitted into the container mouth and a spout at an upper part of the body. And a cap 2 having a structure integrated with a hinge 3. This cap body is made of a synthetic resin.

[0003] An annular fitting wall 5 hanging down at an appropriate distance from the inner surface of the outer wall 4 is provided inside the lower half of a substantially cylindrical outer wall 4 forming the outer peripheral surface of the body 1. The cap body is fitted and fixed to the container opening by fitting the container opening between the outer wall 4 and the fitting wall 5. Furthermore, an upright arc-shaped pouring wall 6 is provided inside the upper half portion of the body 1 so that a portion near the hinge 3 is inclined and opened.

[0004] In a circular portion surrounded by the pouring wall 6, a sealed bottom plate portion 7 for closing the container opening is formed. On the sealed bottom plate portion 7, a weakened line 8 thinner than other portions is formed. The base of the finger ring 9 which is formed in an annular shape and protrudes upward is formed integrally with the sealing bottom plate portion 7 which is annularly surrounded by the weakening line 8. By strongly pulling up the finger ring 9, the weakened line 8 is formed and cut off from the sealing bottom plate 7, the portion surrounded by the weakened line 8 is removed, and a part of the sealed bottom plate 7 is opened. . As described above, the weakening line 8 forms a spout, and is generally formed in a circular shape, an elliptical shape, a diamond shape, a gourd shape, or the like.

On the other hand, a cylindrical sealing wall 11 is formed on the inner surface of the outer wall 10 at a predetermined interval so that liquid does not leak from a spout that is always open. The height of the sealing wall 11 is made to correspond to the inside of the pouring wall 6 of the body 1 in a state where the lid 2 is covered with the body 1.

In the case of pouring out the liquid in the container having the above-mentioned cap fixed, if the container is tilted at a predetermined angle, the liquid flows down to the container opening by its own weight, and is formed by removing the weakening line 8. The liquid is poured from the spout through the pouring wall 6. Further, when the container is returned to the original state, the liquid flows back through the pouring wall 6 and flows into the container through the spout. When the liquid is not to be poured, the spout is closed by covering the lid 2 with the body 1.

By the way, in order to cope with recent environmental pollution problems, general wastes from homes and offices are separated into combustible garbage, non-combustible garbage and the like, and are respectively treated. When is made of glass, it is desirable that the cap body made of synthetic resin be removed from the container opening and collected separately. However, since the cap body is firmly fitted and fixed to the container opening so that the liquid in the container does not leak out, it is difficult to pull the cap body by hand to remove it.

Accordingly, there has been developed a detachable cap body capable of easily removing the cap body from the container at the time of disposal. An example of the structure of such a detachable cap body is shown in FIGS. Here, a portion of the outer wall 4 that forms the body 1 and is exposed with the cover 2 covered with the body 1 is referred to as a lower cylindrical portion 4a. The detachable cap body is provided with a strip-shaped handle 1 at a part near the upper edge of the lower cylindrical portion 4a.
2 is formed integrally with the lower cylindrical portion 4a. One end of the handle 12 is a fixed end 12a formed to protrude from the lower cylindrical portion 4a, while the other end is a free end 12b,
In order to prevent the free end 12b from projecting outward and obstructing, the temporary fixing portion 13 is integrally formed between the lower cylindrical portion 4a and the handle 12, so that the handle 12 can be attached to the lower cylindrical portion 4a. It is fixed along the curvature. Further, a cutting line 14 (dashed line in FIG. 10) formed by making the thickness of the lower cylindrical portion 4 thin so as to be easily cut is formed so as to be continuous with the lower side of the handle end 12.

In the container equipped with the detachable cap having such a structure, the handle 12 is protruded by cutting the temporary fixing portion 13 at the time of disposal, and the handle 12 is moved along the cutting line 14 in the horizontal direction. , To cut the cutting line 14, and then remove the cap so as to pull it out of the container opening. In this manner, when the cutting line 14 is cut, a part of the lower cylindrical portion 4a fitted to the container opening is cut, so that it becomes relatively easy to remove the detachable cap body.

[0010]

However, such a detachable cap has the following problems. That is, when the detachable cap is removed from the container, the holding force is reduced by cutting a part of the lower cylindrical portion 4a in the horizontal direction, but the upper edge portion still fits in the container opening together with the fitting wall 5. Since it is worn, the operation of pulling out (removing) the detachable cap body requires a relatively large amount of force, so that there is a problem that it is difficult to remove. Further, after the cutting line 14 is cut, it is necessary to pull out the detachable cap body from the container opening to remove the detachable cap body. Therefore, the operation of removing the detachable cap body from the container is complicated.
Also, if the cap for the container mouth is made easy to remove with an emphasis on the detachment function, there is a possibility that the fitting force to the container mouth becomes small and the liquid in the container leaks.

Therefore, the present invention can utilize a tapping machine, and can provide a sealing function as a cap at the time of plugging and use, and can remove the cap from the container at the time of disposal. An object of the present invention is to provide a cap body which can be easily detached and which can be broken at the outer wall of the body.

[0012]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a cylindrical body having an outer wall and a fitting wall fitted into a container opening, and a cylindrical body having an outer wall and a fitting wall. In a cap body comprising a cover portion to be covered, a fitting annular portion is formed to protrude annularly inside an outer wall of the body portion, and a thin region extending in a band shape in a vertical direction is fitted to a part of the outer wall. A base portion of a handle piece is formed so as to traverse the annular portion and is integral with the outer wall along the thin area, and the handle piece extends on the outer wall at a position straddling the thin area and makes a round around the outer wall. And is integrally formed by a breakable connecting portion along the upper edge of the outer wall so as to cover a gap between the handle piece and the outer wall from above.

According to a second aspect of the present invention, there is provided a cap comprising a cylindrical body having an outer wall fitted into a container mouth and a fitting wall, and a lid covering a top of the body. Forming a fitting annular portion annularly protruding inside the outer wall, forming a thin region extending in a vertical band shape on a part of the outer wall so as to cross the fitting annular portion, Forming a horizontal thin strip continuously from the upper end of the thin area in parallel with the thin wall, forming a base of a handle piece integrally with the outer wall along the thin area, and the handle piece straddling the thin area. And is provided around the outer wall so as to extend around the outer wall, and is integrally formed by a breakable connecting portion along the upper edge of the outer wall.

According to a third aspect of the present invention, the thin region is constituted by a groove having a substantially mountain-shaped cross section formed inside or outside the outer wall.

According to the fourth aspect of the present invention, the fitting annular portion is provided with a stress-dispersing concave groove at the same circumferential angular interval as the inner groove concave portion of the portion where the thin region is formed. Are formed in a direction crossing vertically.

According to a fifth aspect of the present invention, the lower end of the thin region is open.

According to a sixth aspect of the present invention, unevenness for preventing slip is formed on a surface of the handle piece along the outer wall of the body.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cap body capable of breaking a trunk portion according to an embodiment of the present invention. In addition,
The same members as those of the cap described in the section of the related art are denoted by the same reference numerals, and detailed description thereof will be omitted.

The cap body of the present invention is made of a synthetic resin.
As shown in FIG. 4, the body 21 and the lid 2 are integrally formed by the hinge 3. The present invention also includes a case where the lid is attached to the body by a screw type without connecting the both with a hinge.

On the outer peripheral surface of the outer wall 4 of the body portion 21, a band-shaped handle piece 22 having the same width as the outer wall 4 is positioned so as to make a round around the outer peripheral surface of the cylindrical outer wall 4 in a curved state. . One end (base) of the handle piece 22 is integrally fixed to the outer wall 4 at several places 22a (fixed portion).
The upper edge of 2 is a thin wall 22b that is easy to cut (breakable connection part)
Thus, it is integrally connected to the outer wall 4 so as to close the gap s between the handle piece 22 and the outer wall 4. The fixing portion 22a extends in the vertical direction of the outer wall 4. The other end (free end for gripping) 22c of the handle piece 22 is, as shown in FIGS.
The handle piece 22 is opposed to the base end with a slight gap t extending in the vertical direction. The handle piece 22 is disposed so as to make substantially one round around the outer wall 4.
When b is cut and separated from the outer wall 4, a handle located within a range of a central angle of approximately 235 degrees from the position of the fixing portion is pulled out. As shown in FIG. 3, since the upper edge of the handle piece 22 is simply connected to the upper side of the outer wall 4 by a thin wall 22b, the handle piece 22 and the outer wall 4 are connected at appropriate intervals. Micro-walls 22 that are easy to break in different directions
They are linked by d.

As shown in FIG. 3, a concave / convex surface 22e formed entirely or partially of a ridge or a ridge is provided on the back surface (surface against the outer wall) of the handle piece 22 when the handle piece 22 is gripped. It is formed for slip prevention.

Of the plurality of vertically extending fixing portions 22a provided at the base of the handle piece 22, the outer wall 4 near the fixing portion 22A closest to the free end side has a vertical direction along the fixing portion 22A. Is formed in a band-shaped thin region 23. In the embodiment, the thin region 23 is formed by the groove 2 from the front and back to the outer wall 4.
3a and 23b (see FIG. 7). The groove 23a is formed by drilling the outer wall 4 from the upper part to the middle part. The upper part penetrates the thin wall 22b, and the lower part thereof is a cavity 23c which is open downward and has no flesh portion (see FIG. (See FIG. 5). The groove 23a may be a continuous concave groove or a discontinuous perforated groove. The groove 23b is formed by a groove in which the fitting annular portion 24 formed on the inner surface of the outer wall is vertically removed. The strength of the thin region 23 is the wall thickness x
Is determined by Here, the meaning in the vertical direction is the outer wall 4
The vertical and oblique directions are included because it is only necessary to break a part of the vertical direction.

As shown in FIG. 4, the holding force is further increased so that the cap body does not come off when the container port is fitted and fixed between the outer wall 4 and the fitting wall 5 of the body 21. Therefore, the fitting annular portion 24 is integrally formed so as to protrude inside the outer wall 4, while the annular convex portion 25 is integrally formed outside the fitting wall 5 so as to protrude. Therefore, the above-mentioned thin region 23 is formed so as to cross the fitting annular portion 24 located in the horizontal direction from the up-down direction.

The outer wall 4 and the fitting wall 5 and both of them are
As shown in FIG. 6, the annular fitting groove formed by
In order to prevent the filling liquid from leaking when the container port is fitted, annular engaging ribs 42, 43, 44 are respectively provided on the respective wall surfaces to protrude. Liquid leakage can be completely prevented by bringing the container opening into close contact with the ribs in three directions.

The handle piece 22 extending across the thin region 23
As shown in FIG. 2 and FIG. 3, it is formed with a width and a length that are easy to grasp. When the diameter of the outer wall 4 is approximately 31 mm, the width of the handle piece 22 is 12 m, which is equal to the height of the outer wall.
m, the thickness was about 0.5 mm, and the handle piece 22 is around the outer wall, but since there is a fixed portion, the length of the handle piece 22 is about 73 mm.

The configuration of the outer wall 4 near the thin region 23 of the handle 22 will be described with reference to FIG. The handle portion 22 is also fixed to the outer wall 4 by a strip-shaped extension connecting portion 27 extending from the fixing portion 22A so as to cross the thinned region 23. The extension connecting portion 27 is located substantially at the center of the outer wall 4, is formed in a wide linear shape from the fixing portion 22 </ b> A side of the handle piece 22 to a part of the thin region 23, and the side where the fixing portion 22 </ b> A is located. The extension piece 28 protruding from the outer wall 4 on the opposite side to the thin region 23 is integrally connected to the extension piece 28 in a slightly vertically shifted state. This connection portion N is easy to cut. The handle piece 22 is not connected to the extension piece 28. In addition, the extension connecting portion 27
The width of the extension piece 28 is preferably about 1 mm. As described above, the handle piece 22 having one end fixed to the fixing portion 22A substantially makes a round of the outer wall 4 and is formed integrally with the outer wall 4 by the thin wall 22b and the extension connecting portion 27. 4 is placed in a state of being hung, and the thin region 23 is prevented from breaking when the cap body is fitted and fixed to the container mouth by a stopper or the like.

Further, as shown in FIGS. 5 and 6 and FIG. 2, the upper wall between the outer wall 4 and the fitting wall 5 of the body 21 has a starting end near the groove 23b and has a handle piece. An easily cut horizontal thin piece 50 is provided which extends in the direction of pulling 22. Due to the presence of the horizontal thin pieces 50, the outer wall 4 can be further broken after the thin area 23 is cut.

Further, as shown in FIG.
Since the fixing portion 22A is formed so as to be located on the right side of the thin region 23, when removing the cap body, the free end 22c of the handle piece 22 is pulled counterclockwise, but is not limited to this. Alternatively, the fixing portion 22A may be formed on the left side of the thin region 23 so as to pull the free end 22c of the handle piece 22 clockwise.

Further, by forming the thin region 23 such that the grooves 23a and 23b are formed inside and outside the outer wall 4,
Since the thin region 23 has a large elastic force with respect to the force applied in the horizontal direction, the thin region 23 can be deformed even when pressure is applied to the cap body when the cap is fixed to the container opening, so that the thin region 23 does not break. Here, the thickness of the thin wall 22b and the width of the connection portion N are formed to be substantially equal.

Further, as shown in FIG. 2, in the outer wall 4, at a position opposed to the thin region 23 (opposite position), a stress distribution cut out in a direction (vertical direction) vertically crossing the fitting annular portion 24. A concave groove 31 is formed. This is because, when the cap body of the present invention is fitted and fixed to the container mouth using the stoppering device, the pressure applied to the cap body can be dispersed in the stress dispersion groove 31 and the thin region 23, and the cap body Since there is no breakage, work efficiency is improved. In addition, the stress distribution groove 3
1 may be formed at two positions where the circumference of the outer wall 4 is substantially equally divided into three including the thin region 23.

The operation of removing the above-configured stopper cap of the present invention from the container opening will be described below. First, by pulling the free end 22c of the handle piece 22 in the horizontal direction toward the fixing portion 22A, a thin wall 22b on the upper side of the handle 22 and an ultra-fine wall 22d located between the handle piece 22 and the outer wall 4 are formed. First, it is broken. When the thin wall 22b is completely broken, the handle piece 22 is pulled out like a band, and when the handle piece 22 is further pulled outward, the handle piece 22 is extended.
7, the extension connecting portion 27 is pulled outward together with the handle piece 22, and the connection portion N between the extension connecting portion 27 and the extension portion 28 and the thin region 23 are sequentially formed. It breaks.

After the handle piece 22 is thus pulled in the horizontal direction, the handle piece 22 is then pulled obliquely upward. At this time, it is sheared upward from the broken connection portion N along the thinned region 23 and beyond the fitting annular portion 24, so that a part of the outer wall 4 extends from below to the fitting portion of the container port. It is in a state of being cut in the vertical direction. For this reason, since the holding force for fixing the cap body cannot be secured, the upper edge of the container port fitted between the outer wall 4 and the fitting wall 5 is pulled by the force pulling the handle piece 22 upward. Since the part is removed, the cap body can be removed from the container opening.

Further, since the extension portion 28 is formed to be shorter in the horizontal direction than the extension connection portion 27, the handle piece 22 is formed.
When it is hard to bend when a pulling force is applied, the outer wall 4
On the other hand, the extension connecting portion 27 formed in an elongated rectangular shape is bent outward together with the pulling force of the handle piece 22, so that the connecting portion N can be easily cut without requiring much force. ing.

In the cap body provided with the horizontal thin strip 50, the thin wall 22 is pulled by holding the handle 22 in the horizontal direction.
After breaking b, the handle piece 22 is pulled diagonally upward. Thereby, as already described above, the thin region 23 is broken, and the horizontal thin band 50 is also broken. In this way, the thin portion 23 is sheared beyond the fitting annular portion 24 by the breakage of the thin region 23, and further, the body portion 21 is sheared by the breakage of the horizontal thin band 50.
Is greatly opened, so that it can be more easily removed from the container opening. As the length of the horizontal thin strip 50 is longer, the body 21 is largely broken in the horizontal direction at the time of unplugging, so that the horizontal thin strip 50 is easy to be unplugged. Since there is a risk of becoming weak, the length of the cap is appropriately determined in consideration of the material and size of the cap.

[0035]

As described above in detail, according to the first aspect of the present invention, a thin region extending in a vertical band is formed on an outer wall having a fitting annular portion inside thereof so as to cross the fitting annular portion. The base of the handle piece is formed integrally with the outer wall along the thin area, and the handle piece extends on the outer wall at a position straddling the thin area and the entire periphery thereof, and the outer wall is defined as the upper side of the handle piece. Since the structure is formed integrally by a thin wall that can be broken between the handle pieces, the handle piece can be peeled off near the base of the handle piece by peeling the handle piece while breaking the connecting portion with the end of the handle piece. By pulling upward, the thin area is broken and the outer wall is broken, so that the detachment cap can be easily removed from the container by simply peeling off the handle piece. Since the gap between the outer wall and the handle piece is closed from above by a substantially thin wall, dust and the like do not enter between the thin wall and cleanliness can be maintained. In addition, since the handle piece surrounds the entire circumference of the outer wall, the cap body is sent while being held at the center when it is gripped by the transport hand in the operation by the stoppering machine or the like, so that the smooth operation can be performed. Further, since the thin area is in a state of being hung with a handle piece, the thin area is not broken by an impact of a plugging machine or the like.

According to the second aspect of the present invention, the thin wall extending in the vertical direction is formed on the outer wall having the fitting annular portion inside thereof so as to cross the fitting annular portion. Forming a horizontal thin strip connected to the upper end of the thin area in parallel with the portion, forming a base of the handle piece integrally with the outer wall along the thin area, and the handle piece is located at a position straddling the thin area. Since it extends over the outer wall and is integrally formed by a rupturable connecting portion between the outer wall and the outer wall, in addition to the above-described effects, the handle piece is peeled while the connecting portion is broken at the end of the handle piece. By pulling, the handle piece can be peeled to the vicinity of the base, and by further pulling the handle piece upward, the thin area is broken, the outer wall is broken, and the horizontal thin area is also broken. As described above, since the body is broken not only in the vertical direction but also in the horizontal direction, the body is more widely opened, so that the holding force to the container mouth can be greatly reduced, so that The removal cap can be easily removed from the container opening.

According to the third aspect of the present invention, in addition to the above-described effects, since the thin region is constituted by the groove having a substantially mountain-shaped concave section formed on the inside and outside of the outer wall, the outer wall is broken in the vertical direction. Can be easily done.

According to the fourth aspect of the present invention, in addition to the above effects, the fitting annular portion has the same stress dispersion groove as the inner groove recess at the portion where the thin region is formed. Since the outer wall is easily deformed by forming at circumferential angular intervals, trouble at the time of plugging can be avoided.

According to the fifth aspect of the present invention, in addition to the above-described effects, the lower end of the thin region is opened to facilitate the breakage of the outer wall. Thereby, the stopper cap can be easily removed from the container.

According to the sixth aspect of the present invention, in addition to the above-described effects, the handle piece is less likely to slip during the pulling operation, so that the operation can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state in which a cover of a cap body of the present invention is opened.

FIG. 2 is a bottom view of the cap body shown in FIG.

FIG. 3 is a side view of the cap body of the present invention in a state in which a lid is covered, with the free end side of the handle piece facing forward;

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a perspective view of the cap body of the present invention with the lid and a part of the handle piece removed.

6 is an enlarged cross-sectional view of a lower portion of a body of the cap body of the present invention, and is a cross-sectional view particularly along the line VI-VI in FIG.

7 is a view of the left corner of FIG. 6 viewed from below.

FIG. 8 is a longitudinal sectional view of a conventional cap body.

9 is a partially enlarged cross-sectional view of the cap body of FIG.

10A is a side view of a conventional cap body, FIG.
(B) is the side view which cut out and showed a part.

[Description of Signs] 4 Outer wall 5 Fitting wall 21 Body 22 Handle 22a, A fixing portion 22b Thin wall 22c Free end 22d Extra-fine wall 22e Irregularities 23 Thin areas 23a, 23b Groove 24 Fitting annular portion 26 Connecting portion 27 Extension Connecting part 31 Stress dispersing groove 50 Horizontal thin strip

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Eiko Furusawa, Inventor 7-41, Ogurocho, Tsurumi-ku, Yokohama Ajinomoto Oil Co., Ltd. (72) Toshiharu Yoshida 7-41, Ogurocho, Tsurumi-ku, Yokohama Ajinomoto Oil Co., Ltd. (72) Inventor Shigeshi Miyao 3-43-3 Minamigai, Higashiyamato-shi, Tokyo (72) Inventor Masaru Sasaki 222-2 Matsuno, Tsukui-cho, Tsukui-gun, Kanagawa Prefecture F-term (reference) 3E084 AA04 AA12 AA32 BA03 CA01 CB01 CB02 CB04 CC03 DA01 DB01 DB02 DB09 DB13 DC03 FA09 FC07 GA08 GB08 GB12 GB17 LA03 LB02 LB07 LB09

Claims (6)

[Claims] 1. A cap body comprising a cylindrical body having an outer wall and a fitting wall fitted to a container opening, and a lid covered on an upper part of the body, wherein the inside of the outer wall of the body is provided. A thin annular region that extends in a vertical direction in a part of the outer wall is formed so as to cross the fitting annular portion, and is integrated with the outer wall along the thin region. A base of the handle piece is formed, and the handle piece is provided on the outer wall at a position straddling the thin region and provided around the outer wall, and the handle piece is formed along the upper edge of the outer wall. A cap body which is formed integrally with a rupturable connecting portion so as to cover a gap with the outer wall from above. 2. A cap comprising: a cylindrical body having an outer wall fitted to a container mouth and a fitting wall; and a lid covering a top of the body, wherein a ring is formed inside the body outer wall. A thin annular region extending vertically in a part of the outer wall so as to traverse the fitting annular portion, and the thin annular portion is formed in parallel with the fitting annular portion. A horizontal thin band is formed continuously from the upper end of the area, and a base of a handle piece is formed integrally with the outer wall along the thin area, and the handle piece extends on the outer wall at a position straddling the thin area. A body which is provided around the outer wall and is integrally formed with a breakable connecting portion along an upper edge of the outer wall. 3. The cap according to claim 1, wherein the thin portion is formed by a groove having a substantially mountain-shaped cross section formed inside or outside the outer wall. body. 4. A stress distributing groove is formed in the fitting annular portion.
4. The body part rupturable according to claim 3, wherein the body part is rupturable, wherein the body part is formed so as to extend longitudinally across the fitting annular part at equal circumferential angular intervals with respect to the inner groove recess at the part where the thin region is formed. Cap body. 5. The cap body according to claim 1, wherein a lower end of the thin region is open. 6. The cap body according to claim 1, wherein irregularities for preventing slippage are formed on a surface of the handle piece along an outer wall of the body.