JPS60240652A - Cap mounting mechanism to mouth section of vessel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Application field of industry-1-] The present invention relates to a mechanism for attaching a cap to a container mouth.

[Conventional technology]

A well-known mechanism for attaching a cap to a container mouth is to provide a female thread on the cap and a male thread on the container mouth, and screw the camp to the container. However, this configuration has the disadvantage that it is troublesome to mold the threaded cap and the container mouth. In particular, when injection molding a cap or a container opening, the structure of the mold becomes complicated. Furthermore, when mounting by screwing, it is difficult to automate the mounting operation, and it is not easy to mount the cap at a predetermined mounting angle with respect to the mouth of the container.

In addition, an annular engaging portion is provided on the outer circumferential wall of the container 1'' portion, and a corresponding engaged portion is provided on the inner circumferential wall of the gear pump, so that the camp can be pushed by 1° from above the container portion. Mounting mechanisms for mounting are also known. With this configuration, it is possible to automate the installation work, but it is difficult to keep the gear pump angle constant.

[Problem that the invention attempts to solve]

In any case, with known cap mounting mechanisms, it is difficult to automatically mount a cap with directionality with a constant angle of attachment.

The object of the present invention is to provide a mechanism for attaching a cap to a container opening, which allows automatic attachment of a directional cap.

[Means for solving problems]

In order to achieve this object, according to the present invention, a guided portion and an engaged portion below the guided portion are formed on the inner circumferential wall of the cap. When the cap is attached to the outer circumferential wall of the container mouth from above the container mouth under pressure, the guided part moves over it and lowers the cap. An engaging portion is formed with which the engaged portion engages when the engaged portion reaches the position.

[Effect]

In such a configuration, either the camp or the container mouth, or both, are rotatable and the container (1〆1(-
1. If the cap is attached under pressure from one side, as the guided portion of the cap moves on the guide surface of the container mouth, the cap will rotate relative to the container mouth to the theoretical position. , -U position, the cap is guided by the guide surface and is in the lowermost position, and in this state, the engaged portion of the cap is engaged with the engaging portion of the container opening.

Therefore, by making at least one of the cap and the container mouth rotatable and attaching the cap from one side of the container mouth under pressure, automatic camping with directionality can be easily carried out. Further, with such a configuration, it is not difficult to mold the cap and the container, and even in the case of injection molding, the mold does not become complicated.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 to 3, in the cap mounting mechanism 10 according to the present invention, the cap 12 includes a guided portion 14 formed on the inner peripheral wall and an engaged portion located below the guided portion 14. 1G and is molded from plastic. The guided portion 14 is formed in the shape of a rib extending in the axial direction, and its lower end is formed in an arc shape so as to move smoothly on a guide surface, which will be described later. Further, the engaged portion 16 has a chevron-shaped cross section, and has a lower slope that is gentler than an upper slope so that it can be easily attached but not easily removed.

On the other hand, as shown in FIGS. 4 to 7, the container 18 includes a guide surface 22 formed at its mouth 20 and an engaging portion 24 located below the guide surface 22. hand,
It is also molded from plastic. Of course, cap 12 and container 18 may be formed from glass, metal, etc., rather than plastic.

The kite surface 22 has an arc-shaped distribution part 26 at the center, and slopes 28 extend downward from the distribution part 26 to the left and right. These pair of slopes 28 are formed over 180° on the outer peripheral wall of the container mouth 20 (FIG. 8A). In addition, in the distributing part 26, the kited part 14 of the cap is on the slope 28.
Any shape that does not impede the movement of the object is sufficient, and the shape is not limited to that shown in the drawings. Further, the distribution section 26 may not be provided. Instead of having a pair of slopes 28, the kite face 22 may have a single slope 28 extending 360'' to the outer circumferential wall of the container mouth (see Figure 8B). Compared to the case of having one slope 28, having the slope 28 has the advantage that the travel distance of the camp 12 can be reduced and the time required for installation is shortened.Here, the guide surface 22 has the advantage that Needless to say, it can be formed into various shapes depending on the shape of the cap 12. For example, the container opening 20
If the cap 12 is formed symmetrically so as to have two mounting positions relative to the guide surface 22, the guide surface 22 may be formed in a shape as shown by the solid line or the dashed line in FIG. 8C.

Furthermore, so as to restrain the guided portion 14 at the lowest position,
A 9J notch 23 is provided in a part of the kite surface 22, and this notch extends to the engaging portion 24 due to processing problems. Further, the engaging portion 24 has an upward slope to facilitate engagement with the engaged portion 16, and a stepped portion at the lower end to prevent the engaged portion from easily detaching. There is.

The operation of the cap mounting mechanism 10 having such a configuration will be described below. Either one or both of the cap 12 or the container 18, that is, at least one of them,
Arranged so that it can rotate. Then, while applying downward pressure, the cap 12 is placed over the container 20 from above.Then, the guided portion 14 of the gear pump 12 is pressed onto the guide surface 22 of the container mouth 20, cap 12
Alternatively, when the container opening 20 rotates, it slides on the guide surface and moves downward. Then, when the guided part 14 descends to a certain extent, the lower slope of the engaged part Moving. When the cap 12 reaches the lowermost position, the guided portion 14 is restrained by the notch 23 of the guide surface and remains at the lowermost position. Then, the lower and upper slopes of the engaged portion 16 cross the upper slope and lower end step of the guide surface 22 and reach the positions shown in Figures t51 and 6, and the camp 12 is attached to the container opening 20 . Since the cap 12 is mounted such that the guided portion 14 thereof is restrained by the notch 23 and positioned at the lowermost position, the mounting angle with respect to the container opening is constant. The cap 12 is attached to the container opening 20 with directionality.Also, with at least one of the cap 12 and the container opening 20 rotatable, the cap 12 is pressed against the container. Once attached to the mouth, the cap 12 is automatically attached to the mouth of the container.

Therefore, automatic mounting of the cap 12 with directionality is easily performed, and automation of the mounting work is promoted.

2, according to the present invention, a guided portion and an engaged portion below the guided portion are formed on the inner circumferential wall of the gear pump. When the cap is attached to the outer circumferential wall of the container mouth from above the container mouth under pressure, the guided part moves over it and the inclined guide surface that lowers the cap and the kited surface are brought to the lowest position. An engaging portion with which the engaged portion is engaged when the engaged portion is reached is formed. In such a configuration,
When the cap is attached to the container mouth under pressure with at least one of the gear, the pulley, and the container mouth being rotatable, the cap is automatically attached at a predetermined attachment angle. Therefore, it is possible to easily automatically attach the cap with directionality, and the automation of the attachment is promoted. In addition, such a configuration does not complicate the shape of the cap and container mouth,
There are no problems in terms of molding.

[The embodiments described above are for illustrating this invention, and do not limit the number of ships of this invention, and all modifications and modifications within the technical scope of this invention are also covered by this invention. Needless to say, it is included in For example, although the engaging portion and the engaged portion are formed in an annular shape in the embodiment, they may be formed from a part of the annular portion. In addition, the cap concept also applies to dispensers that not only close the container mouth but also discharge the culture medium inside the container, as well as sprayers and foamers, which are the types of dispensers. included.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of the camp attachment mechanism to the container opening according to the present invention, Fig. 2 is a partial longitudinal cross-sectional view of the camp, Fig. 3 is between the left side of the guided portion of the cap, and Fig. 4 is A plan view of the container opening; FIGS. 5 to 7 are partial left side views of the container;
Partial longitudinal sectional view, part/part A, side view, Nos. B l'l A to No. 81';
1 (Opening of the country. lO: Camp attachment mechanism to container "1 part, 12: Cap, 14: Guided part, 16: Part to be connected, 18: Container, 20; Container mouth part, 22 Guide surface, 23; Kai'id'
v1 missing on surface, 24: engaging portion, 28: slope. Applicant CANYON Co., Ltd. Agent Patent Attorney Takao Warashina $1@%2a'l! i3＠'114＠ +8 %8th procedural amendment (method) % formula% 1 Indication of this case Fugitive Patent Application No. 59-0911834? Name of the invention Mechanism for attaching a cap to the mouth of a container

Claims (2)

[Claims] (1) Form a guided part and an engaged part below the guided part on the inner peripheral wall of the gear pump, and press the cap onto the outer peripheral wall of the container mouth from above the container mouth. Forms an inclined guide surface on which the guided part moves to lower the cap when the cap is mounted, and an engaging part that is engaged by the engaged part when the guided part F reaches the lowest position. A mechanism for attaching the camp to the mouth of the container. (2) The container according to claim 1, wherein a notch for restraining the guided portion at the lowest position is formed in the kite surface.