JP4151754B2 - Positioning container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a positioning container with a simple structure that can reliably prevent overrun beyond a screwing stop position and can keep the outer dimension of a cap body small.
[0002]
[Prior art]
Conventionally, among containers that are sealed with a cap body screwed into the container body, the container body when the container body is sealed so that the container has a front surface and a back surface and the direction of the cap body matches this. 2. Description of the Related Art A positioning container having a positioning mechanism capable of setting a screwing stop position of a cap body with respect to a main body to a constant position is known.
[0003]
For example, a rib formed by protruding from the inner peripheral wall of the bottle lid is engaged with a convex thread formed by protruding from the outer peripheral wall of the bottle neck, and in particular, the rib is protruded by screwing the bottle lid. At the terminal end of the rib opposite to the starting end of the convex thread that starts to engage with the strip, the detent and stop projection are sequentially placed in the screwing direction of the bottle lid. By screwing the bottle lid, the rib that has overcome the detent protrusion is abutted against the stop protrusion to prevent further screwing of the bottle lid, thereby stopping the bottle lid against the bottle neck. A device in which the position is determined is known (Japanese Utility Model Publication No. 49-43370).
[0004]
[Problems to be solved by the invention]
By the way, in the conventional positioning container, since the positioning is performed by abutting the stop protrusion and the rib formed only on the terminal end portion of the convex thread, only the stop protrusion and the rib related to the positioning are arranged. Since the abutting area of the rib is small, there is a possibility that the rib may overrun the stop protrusion and overrun. In particular, when the bottle lid is made of a synthetic resin material that is flexibly deformed, and when both the bottle neck and the bottle lid are made of glass or hard resin, the possibility is high. In consideration of such fears, in order to secure a wide abutting area, when a plurality of convex screw threads are formed and a plurality of ribs are formed, a mold for molding these bottle necks and bottle lids is formed for that purpose. There was also a problem that the cost of the mold was increased.
[0005]
Further, the rib that is abutted against the stop protrusion while engaging with the convex thread is formed so as to be raised from the inner peripheral wall of the bottle lid, so that the outer dimension of the bottle lid becomes necessary and large. There was also.
[0006]
The present invention has been made in view of such conventional problems, and can reliably prevent overrun beyond the screwing stop position and can also keep the outer dimension of the cap body small. An object is to provide a positioning container having a simple structure.
[0007]
[Means for Solving the Problems]
A positioning container according to the present invention is a positioning container that positions a screwing stop position with respect to a container body of a cap body screwed to the container body in order to seal the container body, from the outer peripheral wall of the container body. A single convex screw strip is formed to form a single loop, and the inner circumferential wall of the cap body is recessed to be screwed into the convex screw strip. Of the end portions on the opposite side to the start end portions of the respective screw threads that are formed to rotate, the caps of the concave screw start end portions are included in the end portions of the convex screw threads. A container body-side restraining portion that locks the body peripheral wall and restrains the screwed movement of the concave screw strip is formed by protruding from the outer peripheral wall of the container main body in a manner equivalent to a convex screw strip, and the terminal portion of the concave screw strip The above-mentioned convex screw thread is engaged by locking the convex thread starting end. The cap-side restraining portion for restraining the movement, is formed by blocking the concave screw protrusion in the cap body wall, each beginning of beginning and convex threads of these concave screws Article, the container main body side restraint and It is characterized in that the screwing stop position of the cap body with respect to the container body is positioned by being simultaneously locked to both the cap body side restraining portions .
[0008]
Further, the cap body is positioned between the container body and the cap body by the pair of restraining portions so that the cap body is detachably engaged at a position immediately before the container body is positioned on the container body. It is characterized in that an engaging portion for informing this is provided.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of a positioning container according to the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, the positioning container 1 is exemplified by a cream container comprising a glass container body 2 and a hard synthetic resin cap body 3 screwed into the container body 2 to seal the container body 2. Has been.
[0010]
As shown in FIG. 1, the container main body 2 has a bottomed hollow cylindrical body 4 having a planar outer contour formed in a substantially square shape and containing contents, and a shoulder 4 is placed on the body 4. A hollow cylindrical neck portion 6 whose upper end is opened to take out the contents through the portion 5 is formed to protrude upward, and this neck portion 6 forms a part of the outer peripheral wall of the container body 2. Yes. On the other hand, the cap body 3 is formed in a substantially square shape whose planar outer contour matches the body portion 4, and a concave portion 7 is formed in the cap body 3 so that the cap body 3 can be attached to the cylindrical neck portion 6. For this purpose, as shown in FIG. 2, a circular inner peripheral wall 8 is formed with an inner diameter R <b> 1 separating a slight gap S from the neck 6. Further, the cap body 3 is provided with a lip having an inner diameter larger than the inner diameter of the inner peripheral wall 8 at the lower end portion which is outside the inner peripheral wall 8 and is in contact with the shoulder portion 5 when the container body 2 is sealed. Part 9 is formed. A positioning mechanism described below is provided between the cap body 3 and the container body 2 in order to stop screwing of the cap body 3 at a position that matches the outline of the container body 2.
[0011]
The neck 6 orbiting this convex thread Article 10 Article is formed one size. The convex thread 10 has an outer diameter smaller than the inner diameter of the lip 9 and larger than the gap S so that the cap body 3 can be attached to the neck 6. It is formed to protrude outward. That is, the convex thread 10 is formed as a thread having an “outer diameter R2” larger than the inner diameter R1 of the inner peripheral wall 8. On the other hand, also the inner circumferential wall 8 of the cap body 3 circling this, concave threads of 11 Ichijo threadably engaging with the convex screw strip 10 is formed slightly convex threads of 10 and the same length. The concave thread 11 is formed as a thread having a “valley diameter R3” corresponding to the convex thread 10 having an “outer diameter R2” larger than the inner diameter R1 of the inner peripheral wall 8 by recessing the inner peripheral wall 8. One end thereof reaches the rim 9 and communicates with the lip 9. And the cap body 3 can be screwed into the neck part 6 by covering the cap body 3 on the neck part 6 from the mouth edge part 9 side and screwing the concave thread 11 to the convex thread 10, thereby the container body 2 Can be sealed.
[0012]
In particular, the convex screw 10 and the concave screw 11 on the opposite sides of the convex screw 10 and the concave screw 11 on the opposite side to the starting ends 10a, 11a of the screw 10, 10 where the convex screw 10 and the concave screw 11 start to be engaged with each other. , 11b, the convex thread 10 will be described first. A convex part 12 is formed on the terminal part 10b of the convex thread 10 as a container body side restraining part for restraining the screwed movement of the concave thread 11. . In the present embodiment, the convex portion 12 is formed on the lower side of the convex screw strip 10 so as to protrude from the neck portion 6 at the same height as the convex screw strip 10. And this convex part 12 is the level | step difference which protruded from the neck part 6 with respect to the formation direction of the convex thread 10 at least, ie, the screwing direction of the cap body 3. FIG. In the example of illustration, although the convex part 12 is integrally formed with the convex screw strip 10 in series, it is needless to say that it may be formed separately from the convex screw strip 10.
[0013]
When the cap body 3 attached to the neck 6 is screwed in according to the screwing of the convex screw 10 and the concave screw 11, the lip 9 having an inner diameter larger than the “outer diameter R2” of the convex screw 10 is the convex. 12, approaching the shoulder 5, and then, when the start end 11 a of the concave thread 11 reaches the terminal end 10 b of the convex thread 10 as shown in FIG. 3, the neck 6 of the convex 12 Since the height of the raised portion is larger than the size of the gap S, the inner peripheral wall 8 in the vicinity of the start end portion 11a of the concave thread 11 abuts against the convex portion 12 that is a step and is locked. Thus, further screwing movement of the concave thread 11 is restrained.
[0014]
On the other hand, the concave thread 11 will be described. The end portion 11b of the concave thread 11 is formed with a blocking part 13 as a cap body side restraining part for restraining the screwing movement of the convex thread 10. In the present embodiment, the blocking portion 13 is formed by sealing the end of the concave thread 11 formed by recessing the inner peripheral wall 8 with the inner peripheral wall 8. And this blockade part 13 is the level | step difference which protruded from the concave thread 11 with respect to the formation direction of the concave thread 11, ie, the screwing direction of the cap body 3 at least. In the illustrated example, the blocking portion 13 is continuously formed on the wall surface of the inner peripheral wall 8, but it is needless to say that the block portion 13 does not have to be continuous with the wall surface of the inner peripheral wall 8. Then, by screwing the cap body 3 attached to the neck portion 6, the start end portion 10 a of the convex screw thread 10 reaching the terminal end portion 11 b of the concave screw thread 11 has a stepped sealing portion 13 as shown in FIG. 3. The protruding screw 10 is stopped by further screwing movement.
[0015]
Since the convex screw strip 10 and the concave screw strip 11 are formed with the same length, both the cap body 3 and the cap body 3 are matched at the screwing stop position where the outer contours of the container body 2 and the cap body 3 match. The start end portions 10a and 11a of the screw strips 10 and 11 are simultaneously locked to both the convex portion 12 and the sealing portion 13, respectively, thereby positioning the screwing stop position of the cap body 3 with respect to the container body 2. In this way, by providing a simple configuration in which the convex portions 12 and the blocking portions 13 are provided corresponding to the respective screw strips 10 and 11, a large and wide abutting area when positioning the screwing stop position of the cap body 3 is secured. Can do. Therefore, the overrun of the cap body 3 can be reliably prevented. In particular, since a sufficient abutting area can be obtained even with a single thread, the cap body 3 can be reliably positioned while achieving a reduction in the cost of the mold compared to the case where a plurality of threads are formed.
[0016]
Further, the convex portion 12 that is the container main body side restraining portion is raised by an equivalent to the convex screw strip 10, and the sealing portion 13 that is the cap body side restraining portion is formed by the inner peripheral wall 8 of the cap body 3 with the concave screw strip 11. As shown in FIG. 2, a positioning mechanism is provided in R <b> 1 to R <b> 2 where the thread strips 10 and 11 are formed without increasing the gap S between the cap body peripheral wall 8 and the neck portion 6 as shown in FIG. 2. It can be provided, and it can prevent that the external dimension of the cap body 3 becomes large for a positioning mechanism.
[0017]
Furthermore, between the container main body 2 and the cap body 3, it is sound and feel that the cap body 3 is positioned by releasably engaging the cap body 3 at a position immediately before the container main body 2 is positioned. An engaging portion for informing is provided. In the present embodiment, the container body 2 has a pair of engaging protrusions that are projected directly upward from the shoulder 5 to the corner extending from the neck 6 at a position directly below the convex portion 12 and around the neck 6. 14 is formed, and the cap body 3 has a lip 9 below the concave thread 11 and a front end portion 11a of the concave thread 11 in the screwing direction of the cap body 3 and around the inner peripheral wall 8. A pair of climbing protrusions 15 are formed at the opposite side position so as to protrude toward the concave portion 7.
[0018]
Then, using the gap G between the convex thread 10 and the concave thread 11 along the vertical direction of the neck 6, the riding protrusion 15 rides on the upper end of the engaging protrusion 14 from the lower end so as to engage with each other. As a result, the container body 2 and the cap body 3 are made of a hard material such as glass or hard synthetic resin, and the neck 6 and the inner peripheral wall 8 cannot be expected to be deformed in the radial direction. Even if it exists, a favorable engagement / disengagement operation can be ensured.
[0019]
Then, it is notified that the cap body 3 is positioned on the container body 2 by the feeling and sound when the riding protrusion 15 is engaged with the engaging protrusion 14. Thereby, the excessive screwing of the cap body 3 can be prevented. The engaging portion holds the cap body 3 in the positioning position by the engagement, and the engagement is released by turning the cap body 3 in the loosening direction.
[0020]
In the present embodiment described above, the glass container main body 2 and the hard synthetic resin cap body 3 are described as examples. However, both of these are made of glass, and the hard / soft synthetic material is used. Of course, it may be made of resin.
[0021]
【The invention's effect】
In short, in the positioning container according to the present invention, the screw stop of the cap body is provided by a simple configuration including a container main body side restraining portion and a cap body side restraining portion corresponding to the concave screw thread and the convex screw thread. It is possible to ensure a large and wide abutting area when positioning the position and reliably prevent the cap body from overrunning beyond the screwing stop position . In particular, since a sufficient abutting area can be obtained even with a single thread, the cap body can be reliably positioned while achieving cost reduction of the mold. Since it is a restraining portion that is raised by being equivalent to the convex thread and is formed by blocking the concave thread, the outer dimension of the cap body can be kept small.
[0022]
In addition, the cap body can be prevented from being excessively screwed by the engaging portion that informs that the cap body is positioned.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a preferred embodiment of a positioning container according to the present invention.
2 is a schematic diagram for explaining a threaded portion of a convex thread and a concave thread of the positioning container of FIG. 1. FIG.
3 is an explanatory view in which a thread portion is developed in order to explain the positioning action of the cap body in the positioning container of FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Positioning container 2 Container main body 3 Cap body 6 Neck part 8 Inner peripheral wall 10 Convex screw strip 11 Concave screw strip 10a, 11a Starting end part 10b, 11b of each screw strip Termination part 12 Convex part 13 Sealing part 14 Engagement protrusion 15 Riding protrusion

Claims (2)

In the positioning container adapted to position the screwing stop position with respect to the container body of the cap body screwed into the container body to seal the container body,
A convex screw thread is formed by forming a single convex screw thread from the outer peripheral wall of the container body, and recessing the inner peripheral wall of the cap body and screwing into the convex screw thread. Of the end portions on the opposite side of the start end portions of the respective screw strips, which are formed once with the same length as the strip, and the screw threads start to be screwed together, the end portions of the convex screw strips have the concave portions. A container body-side restraining portion that locks the inner circumferential wall of the cap body at the screw thread start end and restrains the screwed movement of the concave thread is raised from the outer circumferential wall of the container body in a manner corresponding to a convex thread, A cap body-side restraining portion that locks the protruding end of the convex screw to stop the screwing movement of the convex screw is sealed at the end of the concave screw, and the concave thread is sealed off by the peripheral wall of the cap. forming Te, each beginning of beginning and convex threads of these concave screws Article, the container main body side stop And by being engaged the cap side stop portion both at the same time, positioning the container, characterized in that so as to position the engaged stop position of the cap member relative to the container body. The cap body is positioned between the container body and the cap body by the pair of restraining portions so that the cap body is detachably engaged at a position immediately before the container body is positioned on the container body. The positioning container according to claim 1, further comprising an engaging portion for notifying.

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