JPH0618915Y2 - Container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an engaging / disengaging mechanism for a lid of a container in which a lid of a short-angle tube is detachably attached to an angular tube having a square opening. Related to the improvement of.

2. Description of the Related Art A container in which a lid body having an appearance similar to the cross-sectional shape of the container body is fitted to the mouth portion of a conventional rectangular tubular container has a mouth portion of the container as shown in FIG. A flange A that projects outward from the outer peripheral surface of the lid is engaged with a ridge C protruding from the inner surface of the peripheral wall B in an undercut shape, or the mouth and neck of a rectangular tube-shaped container. Is a short cylinder, and an engaging step is provided on the outer peripheral surface thereof, and a protrusion that engages with the engaging step is provided on the inner surface of the peripheral wall of the same rectangular tubular lid, and the lid is rotated to cause The protrusion of the lid is engaged with or disengaged from the engagement step of the mouth and neck of the container.

Problems to be Solved by the Invention In the structure shown in FIG. 11 described above, if the undercut-shaped engagement is tight, it becomes difficult to attach / detach the lid, and if the engagement is loosened, the lid may be removed. There is a drawback that it easily comes off,
If only the mouth and neck of a rectangular container is made into a short cylinder, the diameter of the mouth and neck is smaller than that of the body, making it difficult to take out the paste-like contents and making the container extremely difficult. On the contrary, if the mouth and neck is made larger than the rectangular tube-shaped torso, the external appearance is deteriorated and the loading efficiency during storage and transportation is also lowered.

DISCLOSURE OF THE INVENTION In view of the above-mentioned situation, the present invention makes the mouth of a rectangular cylindrical container square and securely locks a rectangular lid having a cross section similar to the cross section of the container body. Another object of the present invention is to provide a container that has a simple structure and is easily molded so that it can be easily removed by a slight rotation.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is similar to the cross-sectional shape of the body of the container in the square mouth of the rectangular cylindrical container, and the peripheral corners are arc-shaped. An outwardly facing flange is formed overhanging, and a lid having a peripheral wall with a transverse cross-sectional shape that is substantially similar to the flange outer peripheral edge shape is externally fitted to the flange, and the peripheral wall of the lid has a corner portion. The inner surface of the arc is in close contact with the peripheral edge of the flange, the flat inner surface between the corners has a space between the flat peripheral edge of the flange, and the lid is fitted to the mouth of the rectangular tubular container, In a stationary state, it partially has an inward projecting piece that abuts the lower surface of the flange, and the projecting length of the projecting piece is such that when the inner surface of the arc rotates along the arc peripheral edge of the flange. , Select the length where the tip is located within the space between the flat inner surface of the lid and the flat peripheral edge of the flange. It adopts a configuration that is said to be done.

Effects Since the present invention has the above-described configuration, the mouth of the rectangular tubular container has a wide square shape, which makes it easy to put in and take out the paste-like contents, and the lid has a similar shape to the cross section of the body. The prismatic shape can improve loading efficiency during storage and transportation.

In addition, the lid closely contacts the arc edge of the flange of the container mouth on the arc inner surface, and the flat inner surface between the arc inner surfaces is spaced from the flat edge between the arc edges of the flange. Although it is a slight rotation angle, it can be rotated in the circumferential direction, and by this rotation, the inward protruding piece provided on the peripheral wall of the lid body is provided at a position where it is disengaged from the lower surface of the flange at the above-mentioned spacing portion. So, by the above rotation,
The container mouth is disengaged from the peripheral wall of the lid, and the lid is easily removed without resistance. On the contrary, as described above, the protruding piece of the peripheral wall of the lid body is externally fitted to the mouth portion of the container by selecting a position that does not interfere with the flange within the interval, and the direction opposite to the above-mentioned direction. When it is rotated slightly, the protruding piece engages with the lower surface of the flange of the container mouth, preventing accidental disengagement of the lid. Therefore, when the lid body is fitted in the mouth portion, the container body portion and the lid body occupy the same phase, and is in a stationary state, the above-mentioned protruding piece engages with the lower surface of the flange of the mouth portion, and the lid body becomes When the tip is slightly rotated, the tip of the projecting piece exists in the above-mentioned space,
By selecting the shape and size of the protruding piece and the flange, and the width of the above-mentioned interval, the present invention can be applied to rectangular tubular containers of various sizes.

Embodiment 1 FIGS. 1 to 4 show a first embodiment, which is a rectangular tube,
In the illustrated example, a container 1 having a tubular shape with a substantially square cross section has a square mouth portion 2, and the mouth portion 2 has a container body portion 3
Similar to the cross-sectional shape of the above, the outward facing flange 8 is formed so that the peripheral corner portions 4, 5, 6, 7 are arcuate.

The lid 9 fitted on the opening 2 is an outer peripheral edge of the flange 8.
A peripheral wall 11 having a cross-sectional shape that is substantially similar to the shape of 10 is provided, and the peripheral wall 11 of the lid body 9 has arc inner surfaces 16, 17, 15 of the corners 12, 13, 14, 15.
18 and 19, circular arc peripheral edges 20 and 2 of the peripheral corners of the flange 8
Close to 1, 22, 23.

The flat inner surfaces 24, 25, 26, 27 between the circular arc inner surfaces 16, 17, 18, 19 of the peripheral wall 11 of the lid 9 are the peripheral corners 4, 4 of the flange 8.
Distance S between flat peripheral edges 28, 29, 30, 31 between 5, 6, 7
Have been confronted.

Then, as described above, the inwardly projecting piece 33, which is in contact with the lower surface 32 of the flange 8 when the lid 9 is fitted in the mouth 2 and left stationary, is formed on a part of the peripheral wall 11 of the lid 9. It is formed to project.

The projecting length l of the projecting piece 33 is defined by the arc inner surfaces 16, 1 of the lid body 9.
When the 7, 18, 19 are rotated along the peripheral edges 20, 21, 22, 23 of the flange 8, the tip 34 of the projecting piece 33 is selected to have a length so as to be located within the space S.

When the lid 9 described above is rotated slightly along its arc inner surfaces 16, 17, 18, 19 along the arc edges 20, 21, 22, 23 of the flange 8, the spacing S becomes the corner 4 of the flange 8. , 5, 6 and 7 are slightly widened in the portion in front of the rotation direction.

5 and 6 are analysis diagrams of the action, where O is the center of the container 1, x is the diameter of the mouth 2 of the container 1 from the center O, y is the center O ′ of the arc peripheral edge 20, and x is the center O ′. y-coordinate t: width of the protruding piece 33 a: amount of biting of the protruding piece 33 of the flange 8 R: radius of the arc peripheral edge 20 θ: angle from the container center O to the protruding piece 33 α: rotation angle of the lid 9 y _x : center O after _rotation: y coordinate of the 'x-coordinate of the y y center O after rotation' S: distance between the flat rim 31 and the flat inner surface 27 Z: the distance from the center O to the protruding piece 33, x = 50 mm, y = 20 mm, a = 1 mm, t = 2 mm, the rotation angle α required for the tip 34 of the above-mentioned protruding piece 33 to be positioned within the interval S is about 3.24 ° by the following formula. The spacing S at that time is about 1.10 mm.

_{S = (y x + R)} -x = 21.096 + 30-50 = 1.096 Figure 7 is an illustration only engagement with the projection piece 35 and the flange 36 of the second embodiment as an enlarged longitudinal section, the lid 37
The main body portion 38 of the top of the is bulged from the peripheral portion 39, the peripheral wall 40 is hung longer than that of the first embodiment, and the outwardly facing step portion 41 is formed at the substantially central portion. Lid
When the 37 is fitted, the stepped portion 41 can be used to stack the lid body 37, and the space portion between the seal piece 44 of the mouth portion 43 of the container 42 and the main portion 38 of the lid body 37. A small article can be stored in 45, and other configurations are exactly the same as in the first embodiment.

FIG. 8 shows a third embodiment of the present invention, in which the lid 46 is fitted into the flange 48 of the container 47, and is left stationary.
Notches 51 and 52 are provided on the flange 48 on both sides of the position where the protruding piece 50 on the inner surface of 49 is engaged with the flange 48, and the engagement between the protruding piece 50 and the flange 48 when the lid body 46 is rotated. The release is facilitated, and other configurations and operations are the same as those in the first embodiment.

FIG. 9 shows the fourth embodiment, and when the lid 53 is fitted on the flange 55 of the container 54 as shown in FIG. 8, the flange 55 with which the projecting piece 56 is engaged. An outwardly projecting portion 56A is formed in the portion of FIG. 5 to ensure the secure engagement between the lid 53 and the flange 55, and at the end of the rotation angle of the lid 53 for increasing the interval S, The dimensions of each part are selected so that the protruding piece 56 is displaced to the outside of the projecting portion 56A.

FIG. 10 shows the fifth embodiment, the flange of the container 57.
As a narrow range of the arc peripheral edge 59,60,61,62 of the corner of 58, straight edges 63,64,65,66 are arranged on both front sides, and the protruding piece 69 on the inner surface of the peripheral wall 68 of the lid 67 is By engaging the circular arc peripheral edges 59, 60, 61, 62 and rotating the lid 67, the flat inner surface 70 of the straight edge 63, 64, 65, 66 and a portion of the peripheral wall 68 of the lid 67 close to the circular arc inner surface 70. The protrusion 69 and the flange 58 are disengaged from each other in a portion where the distance between
This is similar to the first embodiment.

In each of the above-described embodiments, the container has a substantially square cross section, but it is needless to say that the prismatic shape may be any shape such as a pentagon or a hexagon.

It should be noted that the fitting of the lid is performed in the reverse order of the removal.

In each of the embodiments, the illustration of the sealing packing interposed between the upper surface of the flange of the container opening and the inner surface of the lid top is omitted, but it goes without saying that the packing is interposed during use. Is.

Advantageous Effects of Invention The present invention has the above-described configuration and operation, and has a square tubular container with a square mouth and a cross-section rectangular lid similar to the cross-sectional shape of the container body. There is an effect that it can be fitted so that it can be securely locked and easily removed by a slight rotation.

Further, the structure is relatively simple, and it has an effect that molding can be easily performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the first embodiment across the flange surface of the container. FIG. 2 is a cross-sectional view taken along the line I-I in FIG. 2, and FIG. 2 is a partial cutaway of that shown in FIG. FIG. 3 is an enlarged view of a sectional view taken along the line III-III in FIG. 1, FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, and FIGS. 5 and 6 show the operation of the first embodiment. Analysis view, FIG. 7 is an enlarged vertical sectional view similar to FIG. 4 of the second embodiment, FIG. 8 is a sectional view similar to FIG. 1 of the third embodiment, and FIG.
FIG. 10 is a sectional view similar to FIG. 1 of the fourth embodiment, and FIG.
FIG. 11 is a sectional view similar to FIG. 1 of the embodiment of FIG.
It is sectional drawing similar to a figure. 1: container, 2: mouth part, 3: body part, 4, 5, 6, 7: corner part, 8: flange, 9: lid, 10: outer peripheral edge, 11: peripheral wall,
12,13,14,15: Corner, 16,17,18,19: Inside arc, 20,21,2
2,23: Circumferential edge, 24,25,26,27: Flat inner surface, 28,29,30,3
1: Flat peripheral edge, 32: Lower surface, 33: Projecting piece, 34: Tip, S:
interval.

Claims (1)

[Scope of utility model registration request] 1. An outwardly facing flange, which is similar to the cross-sectional shape of the body of the container and has arcuate peripheral corners, is formed at the square mouth of the rectangular tubular container. A lid having a peripheral wall having a cross-sectional shape that is substantially similar to the outer peripheral edge of the flange is externally fitted, and the peripheral wall of the lid is in close contact with the arc peripheral edge of the flange on the arc inner surface of the corner, and between the corners. An inner surface that is in contact with the bottom surface of the flange when the lid is fitted in the mouth of the rectangular tubular container and is left stationary, with a space between the flat inner surface and the flat peripheral edge of the flange. The projection length of the projection piece is such that the distance between the flat inner surface of the lid body and the flat peripheral edge of the flange when the arc inner surface is rotated along the arc peripheral edge of the flange. A container whose length is selected so that the tip is located inside.