JPS5849938Y2 - container - Google Patents

Description

[Detailed description of the invention] The present invention relates to a container in which the container body and the cap attached thereto have the same external cross-sectional shape and the caps are screwed together, and the present invention relates to a container in which the container body and the cap attached thereto have the same external cross-sectional shape and the caps are screwed together. This enables easy and reliable alignment when the shape is asymmetric.

In recent years, for example, cosmetic containers and the like have increasingly had a cross-sectional shape other than a perfect circle, such as an ellipse or a polygon, for aesthetic reasons.

For these non-perfect circular containers, especially those with screwed caps, the outer circumferential surface of the body of the container body and the outer circumferential surface of the cap must be aligned with the road surface when the cap is fastened. Of course, this point is taken into consideration when determining the screwing and tightening position, that is, the position of the screw threads on both sides.

By the way, as a means for screwing the cap of this kind of container,
From the viewpoint of ease of screwing together and stability and strength of the fastened state, it is common to provide two threads on each of the container body and the cap, but which of the two threads should be connected to each other? However, since the outer circumferential surface of the body of the container body and the outer circumferential surface of the cap are always on the road surface when the cap is fastened, the cross-sectional shape of the container is 180 mm, such as an oval or a rectangle. It is limited to containers that are symmetrical with respect to a point (angle); if the container has an asymmetrical shape as shown in the figure, the container body and the cap will not necessarily be flush with each other when the cap is fastened. It is.

In other words, in the case of a container whose cross-sectional shape is asymmetrical, as mentioned above, if any of the two threads can be screwed together, the position will be determined when the two threads are screwed together. Even if they can be matched, when different threads are screwed together, the cap will be attached to the container body with the front and back sides reversed.

For this reason, the reality is that this method is rarely used for containers with an asymmetric cross-sectional shape.

In view of the foregoing, the present invention is particularly aimed at containers having an asymmetrical cross-sectional shape and other containers in which the container body and the cap can match only at certain positions in terms of outer shape and design.
It is an object of the present invention to provide a cap that can be screwed together in a manner that allows for constant alignment.

Next, embodiments of the present invention will be described based on the drawings.

10 is a cylindrical mouth portion 13 attached to the upper end of the body portion 11 via a shoulder portion 12;
The body 11 has a protruding cross-sectional shape that is not a perfect circle, is symmetrical about a line, but is symmetrical about a point, and is mainly made of synthetic resin.

An outer shell 14 made of transparent synthetic resin or the like is attached to the body 11 and the shoulders 12 as required, as shown in the figure.

20 has an outer shell 21 having a cross-sectional shape that is approximately the same as the body 11 of the container body 10, and has a cylindrical opening 13 in the center.
This is a cap having a cylindrical portion 22 for screwing on the outside.

In the case of the illustrated embodiment, the screwing cylinder part 22 and its base part 23
is formed as a cap body 24 separately from the outer shell 21,
A decorative outer shell 21 made of hard synthetic resin or the like is fitted on the outside of the cap body 24, but the threaded cylindrical portion 22
It is also possible to integrally form the outer shell 21 with the same material.

A protrusion 26 that can be fitted into the cylindrical opening 13 is provided at the center of the top plate of the screwing cylinder 22, and a ring-shaped backing material 27 is fitted around the protrusion 26 to tighten the cap. In this case, the upper end surface of the cylindrical opening 13 is
It is designed to come into pressure contact with the

Reference numeral 28 denotes ribs that are continuous or discontinuous in the circumferential direction and are provided on the inner periphery of the threaded cylindrical portion 22 to prevent the backing material 27 from falling off.

However, in the present invention, the cap 20 is attached to the container body 1.
As a structure for screwing into the cylindrical mouth part 13 of 0, two threads 15a having a narrow width and a wide width are provided on the outer periphery of the cylindrical mouth part 13 and the inner periphery of the corresponding threaded cylindrical part 22, respectively. , 15 b
and 25a, 15b are provided so that their starting ends are opposed to each other by approximately 180° (angle).

In particular, these threads 15a, 15b and 25
a and 25 b, the cylindrical opening 13 side, the lower threaded surface, and the threaded upper surface on the threaded cylindrical part 22 side form corresponding surfaces with the same pitch for sliding engagement, and furthermore, the cylindrical opening The interval W1 between the upper surface of the wide thread 15b on the part 13 side (including its extended trajectory surface) and the lower surface of the narrow thread 15a above it (including its extended trajectory surface) The width is set to be smaller than the width of the wide thread 25b on the side and larger than the width of the narrow thread 25a. ) and the narrow thread 15 below it
The distance W2 between the upper surface of the thread a and the upper surface thereof is set to be larger than the width of the wide thread 25 b on the threaded cylinder portion 22 side.

In other words, the wide thread 25 b on the side of the screwing cylinder 22 can be slid into the lower part of the wide thread 15 b on the cylindrical opening 13 side, but the narrow thread 25 b on the upper side of the wide thread 15 b It is slightly wider than the interval W1 between it and the thread 15a, so that it cannot be slid into the space W1, that is, below the narrow thread 15a.

In addition, it is preferable that the wide thread 25b on the side of the screwing cylinder 22 be made wider than the interval W1 by at least the width of the narrow thread 15a.

Further, the lower end of the wide thread 25b on the side of the screwing cylinder 22 is formed into a cutting edge-like inclined end surface 25b' that descends in the opposite direction to the inclined direction of the thread as shown in the figure. The lower end of the thread 25 b is the narrow thread 15 on the cylindrical opening 13 side.
When it comes into contact with the upper end of a, it is made easier to get over the upper end.

The inclined end surface 25b' may be curved to some extent.

With the above configuration, the present invention always has narrow threads 15a, 25a when screwing the cap 20 onto the container body 10.
The wide threads 15 b and 25 b are screwed together.

and the screw thread 15a. 15 b and 25 a, 2
5b, in relation to the cross-sectional shapes of the container body 10 and the cap 20, the cap 20 is arranged between the narrow threads 15a and 25a and the wide thread 1.
When 5 b and 25 b are screwed together and tightened, the outer circumferential surface of the body 11 of the container body 10 and the outer circumferential surface of the cap 20 are close to the road surface.
are arranged to match.

The upper end of the wide thread 15b on the side of the cylindrical opening 13 is formed on a horizontal surface 15b' as shown in the figure, and the thread 25a on the side of the threaded cylindrical part 22 rests thereon.

25b is easy to slip, which is suitable for screwing and tightening the cap 20.

In the case of the illustrated embodiment, the cylindrical opening 13 of the container body 10 is used as a positioning means when the cap 20 is screwed and fastened.
A convex portion 16 is provided at a suitable position on the outer periphery of the base of the cap 20, and the cap 20 is placed at a predetermined position on the lower edge of the threaded cylinder portion 22 of the other cap 20, that is, between the outer circumferential surface of the body 11 of the container body 10 and the cap 2.
A recess 29 is provided which fits into the convex part 16 when tightened to a position where the outer circumferential surface of the recess 16 is flush with the outer peripheral surface of the recess 29,
This allows for more accurate alignment.

A notched inclined surface 29' for guiding the fitting is provided on the side of the recess 29 in the cap tightening direction.

The positioning means for the cap 20 is not limited to the structure described above, and may be implemented using various structures such as a convex portion and a concave portion that perform the same functions as those described above.

The present invention is constructed as described above, and in order to attach the cap 20 to the cylindrical mouth part 13 at the upper end of the container body 10, the threaded cylindrical part 22 of the cap 20 is screwed into the cylindrical mouth part 13. When doing so, even if the lower end of the wide thread 25b on the inner periphery of the screwing cylinder part 22 initially comes into contact with the upper end of the wide thread 15b on the outer periphery of the cylindrical mouth part 13, the wide thread on the cylindrical mouth part 13 side Thread 15b
Since the distance W1 between the upper surface and the narrow thread 15a above it is smaller than the width of the wide thread 25b on the threaded cylinder part 22 side, the wide thread 25b is within the space W1, that is, The narrow thread 15a is not screwed into the lower side of the thread, and the threading between the narrow thread 15a and the wide thread 25b is prevented, and the lower end of the wide thread 25b is connected to the thread. An inclined end surface 25b that descends in a direction opposite to the inclined direction of 25b.
′, when the cap 20 is rotated for screwing, the wide thread 25 b catches the upper end of the narrow thread 15 a on the cylindrical opening 13 side. The screw slides over the wide screw thread 15b without any smooth sliding motion, and then slides into the lower side of the wide screw thread 15b.

Therefore, in the container of the present invention, the cap 20 is attached to the container body 10.
No matter what position the screwing and tightening operation is performed, the narrow threads 15 a and 25 a and the wide threads 15 b and 25 b can always be reliably threaded together.

As described above, the container of the present invention has two threads 15a, 15a and 25a, 25 on the outer periphery of the cylindrical opening 13 of the container body 10 and on the inner periphery of the threaded cylindrical part 22 of the corresponding cap 20, respectively. Despite the fact that b.
These threads 15a, 15b and 25a.

25b is modified into a narrow width and a wide width to create a narrow screw thread 15a
, 25a and the wide threads 15b, 25b are always screwed together, the state in which the cap 20 is completely tightened by this screwing is always approximately constant with respect to the container body 10, and therefore, as shown in the figure. As long as the outer circumferential surface of the body 11 of the container body 10 and the outer circumferential surface of the cap 20 match the road surface when the screwing is completed, the cross-sectional shape can be point-symmetrical. Of course, even if the cap is in a non-point symmetrical shape, the cap is attached so that the outer circumferential surface of the body and the outer circumferential surface of the cap always match the road surface due to the above-mentioned screw tightening. There is no need for the cap 20 to be attached with the front and back sides reversed relative to the container body 10, and a state in which the container body and the cap are vertically connected can be obtained in terms of external shape and design.

In particular, when used in conjunction with means for positioning the screw fastening position using recesses and protrusions, there is no deviation due to the strength of the fastening force, etc.
More accurate alignment can be performed.

Therefore, the present invention is a container with a screw-on cap, and its cross-sectional shape is particularly an approximately isosceles triangle.

Suitable for containers with an asymmetrical shape such as a semicircular 9-trapezoid, and other containers in which the outer shape and design of the container body and the cap can match only at a certain position, and the cap can be screwed together with alignment. can enable the implementation of containers in the form of
Furthermore, it has excellent effects such as being able to diversify the designs of cosmetic containers and other containers.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view before the cap is attached, Fig. 2 is a front view of a portion of the front cap taken longitudinally, and Fig. 3 is a partially cutaway perspective view of the cap before being attached. 4 is a rear view of the same, FIG. 5 is a longitudinal sectional view at the time when the screwing is started, and FIG. 6 is a longitudinal sectional view when the screwing is completed. 10... Container body, 11... Body, 1
2... Shoulder part, 13... Cylindrical mouth part, 20
... Cap, 21 ... Outer shell, 22.
...Threaded cylinder part, 15a, 25a...
...Narrow thread, 15b, 25b...Wide thread, 25b'...Slanted end surface.

Claims (1)

[Scope of utility model registration request] 1. It has a container body 10 with a cylindrical mouth 13 protruding from the upper end of the body 11 through a shoulder 12, and an outer shell 21 having approximately the same external shape as the cross-sectional shape of the body of the container body 10. A cap 20 having a cylindrical portion 22 for screwing onto the outside of the shaped opening portion 13
and an outer periphery of the cylindrical opening 13 and a threaded cylindrical portion 2.
There are two threads 15a on the inner circumference of 2, one narrow and one wide.
, 15 b and 25 a , 25 b are provided, and these threads 15 a , 15 b and 25 a , 25 b are provided.
In this case, the lower surface of the thread on the side of the cylindrical opening 13 and the upper surface of the thread on the side of the threaded tube 22 form corresponding surfaces with the same pitch, and the top of the wide thread 15 b on the side of the cylindrical opening 13 forms a corresponding surface with the same pitch. The distance between the side surface and the lower surface of the narrow thread 15a above the narrow thread 15a is set so that it is smaller than the width of the wide thread 25b on the side of the screwing cylinder 22 and larger than the width of the narrow thread 25a. The distance between the lower surface of the thread 15b and the upper surface of the narrow thread 15a below it is the same as that of the threaded cylinder part 22.
The width is set to be larger than the width of the wide thread 25b on the side, and the lower end of the wide thread 25b on the threaded cylinder part 22 side is inclined downward in the direction opposite to the direction of inclination of the thread. A container characterized in that it is formed on an end face so that narrow threads 15a and 25a and wide threads 15b and 25b are threaded together. 2. The container according to claim 1, which is a registered utility model, in which the upper end of the wide thread 15b on the side of the cylindrical opening 13 is formed into a horizontal surface. 3. Cap, 20 with narrow threads 15 a, 15 b
In practical use, the outer circumferential surface of the body 11 of the container body 10 and the outer circumferential surface of the cap 20 match the road surface when they are screwed together and the wide threads 15 b and 25 b are screwed together. A container according to claim 1 or 2 of the patent registration claim. 4. The container body 10 and the cap 20 are provided with positioning means using a convex portion 16 and a concave portion 29 that fit into each other when the cap 20 is screwed and fastened to a predetermined position. The container according to item 1, item 2 or item 3.