JP2000085805A - Fit-in container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fit-in container for which a cover can be fitted to a container body almost by one action of operation with tightness in sealing-up being ensured. SOLUTION: A plurality of holding projected stripes 15 each in an inclined triangular section are formed at specified intervals at the outside of a skirt part 14 provided at the outer circumference of a flange 13 of a container body 10 while a plurality of engaging projected stripes 25 each in an inclined triangular section similar to the holding projected stripe 15 are formed at specified intervals at the inside of a skirt part 24 provided at the outer circumference of a flange 23 of a cover 20, and by turning the cover 20, the cover 20 is fitted to the container body 10 with each of the engaging projected stripes 25 fitted into the underside of each of the holding projected stripes 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting container, and more particularly to a container fitted by rotating a lid.

[0002]

2. Description of the Related Art A container of this type which is generally used is of a screw type or a type in which a projection is fitted into a keyway.

[0003] Since the screw mechanism is such that the male screw and the female screw are fitted and screwed into each other, it is difficult to first find out the beginning of the engagement, and then the screw cannot be firmly fitted unless the lid is rotated considerably. That is, the fitting cannot be performed by one behavior or an operation close thereto. Further, in a relatively thin container obtained by vacuum forming or pressure forming a synthetic resin sheet, if a force is excessively applied at the time of fastening, the screw portion and its vicinity may be broken. In addition, if the molding accuracy is not considerably increased, there are various drawbacks, such as a gap or the like occurring at the fitting portion between the lid and the container body, resulting in poor sealing performance.

The one in which the projection is fitted into the keyway can be fitted without turning the lid so much, but has only the function of engaging the lid and the container body so as not to separate. It is not good in airtightness because it is not used.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fitting container which can fit the lid to the container body by an operation close to one behavior and has a high sealing property.

Another object of the present invention is to provide a fitting container in which the fitting portion and the like are prevented from being damaged by idling even if a force is excessively applied by hand when the lid is rotated.

[0007]

In order to solve the above-mentioned problems, according to the present invention, the cross section inclined with respect to the lower edge of the skirt portion is substantially triangular on the outer surface of the skirt portion provided on the outer periphery of the flange of the container body. A plurality of locking ridges at regular intervals, and on the inner surface of the skirt provided on the outer periphery of the lid flange,
A plurality of engaging ridges having a substantially triangular cross section inclined with respect to the lower edge of the skirt portion are formed at regular intervals, and the locking ridges and the engaging ridges have substantially the same inclination. The upper end is sharpened.

It is preferable that the lower end of the engaging ridge is sharpened.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show the container body. As shown in the drawing, the container body 10 has a peripheral wall 12 rising from the peripheral edge of the bottom wall 11, a flange 13 is provided around an opening at the upper end of the peripheral wall, and a skirt portion 14 hangs down from the peripheral edge of the flange 13. I have. On the outer surface of the skirt portion 14, six locking protrusions 15 of the same shape are provided at equal intervals. The locking ridge 15 is inclined by about 7 ° to 9 ° with respect to the horizontal lower edge of the skirt portion 14, and its cross section is substantially triangular over its entire length and one end extending upward is a sharp portion 15a. . The length of the sharp portion 15a occupies substantially one third of the entire ridge 15, and its upper edge 15c extends almost parallel to the flange 13, gradually decreases in height toward the tip, and finally ends in the skirt portion 14. And the same level. At the other end 15b located below the ridge 15, a non-sharp triangular end surface appears as if the middle part of the ridge was cut obliquely. Of course, it may be sharpened like the upper end. The number of the locking projections 15 is plural, preferably four or more.
Further, the length and the interval of the ridge 15 are selected so as to minimize the rotation at the time of fitting the lid described later.

FIGS. 3 and 4 show a lid fitted to the container body 10.
Shown in As shown, the lid 20 includes a top wall 21, a peripheral wall 22 hanging down from the periphery thereof, a flange 23 provided around the peripheral wall, and a skirt portion 24 hanging down from the flange periphery.
On the inner surface of the skirt portion 24, six engagement protrusions 25 of the same shape are provided at equal intervals. Engagement ridge 25
Is about 7 ° to 9 ° with respect to the horizontal lower edge of the skirt 24.
It is inclined, the cross section is substantially triangular over the entire length, and sharp portions 25a and 25b are formed at both ends. The length of each of the sharp portions 25a, 25b occupies almost one third of the entire ridge 25, and the upper edge 25c and the lower edge 25d respectively extend substantially parallel to the flange 23, and gradually decrease toward the tip, At the end, it is at the same level as the skirt 24. As shown in FIG. 5, the other end 25e of the ridge 25
It may be a cut surface similar to the ridge 15 of the container body 10. It is preferable that the number of the engagement ridges 25 be provided corresponding to the number of the container main bodies, but the number is not necessarily the same. The length and spacing of the ridges 25 are selected so as to minimize the rotation of the lid 20 during fitting.

In order to fit the lid 20 to the container body 10, the skirt 24 of the lid 20 is loosely covered on the outer periphery of the skirt of the container body 10, and in this state, the inclination of the ridges 15 and 25 is reduced. When the lid 20 is slightly rotated, the engaging ridge 25 of the lid 20 enters the lower surface of the locking ridge 15 of the container body 10 as shown in FIG. , The lid 20 approaches the container body 10 according to the rotation of the lid 20, and finally the lid 2
The flange 23 of No. 0 comes into close contact with the flange 13 of the container body 10 and the fitting of the lid 20 is completed. At this time, the cross section is almost 3
As shown in FIG. 6, the side surfaces of the rectangular locking ridge 15 and the engagement ridge 25 abut each other, and the elasticity and frictional force of the container material combine,
The fitted state is firmly maintained.

Further, at the beginning of the fitting, the engaging ridge 25 of the lid 20 is formed.
When the penetrating portion enters the lower surface of the locking ridge 15 of the container main body 10, the tip of the sharp portion 15a of the locking ridge 15 becomes thinner and gradually increases in height. It can be smoothly introduced into the lower surface of the locking ridge 15 of the main body 10. And, if a sharp portion 25b is provided at the lower end of the engaging ridge 25 of the lid 20, even if excessive force is applied when the lid 20 is tightened, the container main body starts from the thin and low end of the sharp portion 25b. There is no risk that the ridge 15 or the ridge 25 will be damaged by riding on the ten locking ridges 15 and spinning. When this idling function is not required, as shown in FIG.
The other end 25e need not be sharp. On the other hand, the sharp portion 25a above the engaging ridge 25 rotates the lid 20 in the reverse
When 0 is removed, there is no catch at the time of rotation, enabling smooth rotation.

As shown in FIG. 6, in order to enhance the tightness of the container, a ridge 16 and a ridge 26 which fit into the flanges 13 and 23 respectively can be provided over the entire circumference. Further, the cross-sectional shapes of the ridges 15 and 25 are not limited to the isosceles triangles of FIGS. 1 and 3, and may be a right-angled triangle as shown in FIG.

[0014]

According to the present invention, as described above, the outer surface of the skirt hanging from the flange on the outer periphery of the opening of the container body is
A plurality of locking ribs having a substantially triangular cross section are provided at regular intervals, the upper end thereof is sharpened, and a plurality of slanted cross sections having a substantially triangular cross section are formed on an inner surface of a skirt portion hanging from an outer peripheral flange of the lid. Are provided at regular intervals, and the skirt portion of the lid is loosely covered with the skirt portion of the container body and rotated, so that the engagement ridge enters the lower surface of the locking ridge and engages with each other. The lid can be fitted smoothly with almost one movement without much rotation of the lid, and the side faces of the ridge are pressed against each other and the fitting force is high. Can be held, and the upper ends of the locking ridges and the engaging ridges are sharpened, so that the locking ridges are introduced at the time of fitting and the engagement ridges are released at the time of removal. Is performed smoothly.

[Brief description of the drawings]

FIG. 1 is a partially longitudinal side view showing a main body of a container of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a longitudinal sectional view showing a lid of the container of the present invention.

FIG. 4 is a rear view of the above.

FIG. 5 is a front view showing another example of the engagement ridge of the lid.

FIG. 6 is a partial longitudinal sectional view showing an engagement state between a lid and a container body.

FIG. 7 is a partial longitudinal sectional view showing another example of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container main body 11 Bottom wall 12 Peripheral wall 13 Flange 14 Skirt part 15 Locking ridge 15a Sharp part 15b Other end part 15c Upper edge 16 Convex ridge 20 Cover 21 Top wall 22 Perimeter wall 23 Flange 24 Skirt part 25 Engagement ridge 25a, 25b Sharp part 25c Upper edge 25d Lower edge 25e Other end 26 Concave stripe

Claims (2)

[Claims] 1. A plurality of locking ridges having a substantially triangular cross section inclined with respect to a lower edge of the skirt are formed on an outer surface of a skirt provided on an outer periphery of a flange of the container body at regular intervals,
A plurality of engaging ridges having a substantially triangular cross section inclined with respect to the lower edge of the skirt portion are formed at regular intervals on the inner surface of the skirt portion provided on the outer periphery of the flange of the lid. A fitting container in which the ridges have substantially the same inclination and the upper ends of the locking ridges are sharp. 2. The fitting container according to claim 1, wherein a lower end portion of the engaging ridge is sharpened.