JPH0680656U - cap - Google Patents

Abstract

(57) [Summary] [Purpose] To propose an excellent synthetic resin cap that can express the unused state of the contents without special packaging such as shrink packs and can be easily removed from the container. [Structure] A cap main body 2 fitted with a peripheral wall 6 fitted around the outer periphery of a container body neck 5 and a ring plate-shaped handle 4 placed on the upper surface of a top wall 7 of the main body 2 via a connecting plate 3. And integrally connect the inner peripheral surface of the handle 4 with the tapered surface 13, and
A taper cylinder portion 14 is provided so as to stand on the outer surface of the top wall 7 of the main body so as to abut on the taper surface 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap, and more particularly, to a cap made of synthetic resin having a virgin seal function that indicates unused.

[0002]

[Prior art] [Problems to be solved by the device]

 As a simple cap that fits in the mouth and neck of the container body and closes the upper opening of the mouth and neck, for example, a top wall that closes the upper opening of the mouth and neck is extended from the upper edge of the peripheral wall that fits around the outer periphery of the container and neck portion. There is also the one in which the fitting cylinder portion fitted to the inner surface of the neck portion of the container body is hung from the back surface of the top wall. In order to express the unused state of the contents of these caps, the entire cap is covered or the entire container including the cap is covered, and a shrink pack is performed with a synthetic resin film. However, shrink packs have high raw material costs, and equipment for them is also required.

An object of the present invention is to propose an excellent synthetic resin cap that can express the unused state of the contents without such special packaging and can be easily detached from the container body. To do.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the cap of the present invention fits a peripheral wall 6 circumferentially provided on the inner surface of a ridge 8 elastically overriding and engaged with the lower surface of the ridge 9 circumferentially provided on the outer periphery of the neck 5 of the container body. The cap main body 2 is formed by extending a top wall 7 that closes the upper end opening of the mouth / neck portion 5 from the upper edge of the peripheral wall 6, and the rear portion of the main body is integrally connected to the rear portion of the main body through a connecting plate 3. 7 is a ring plate-shaped handle 4 placed on the upper surface of the cap body 7, and the inner peripheral surface of the handle 4 is formed into a tapered surface 13 that spreads upward, and is erected from the center of the upper surface of the top wall 7 of the cap body. The outer surface of the elastic taper cylinder portion 14 is configured to be brought into contact with and locked to the taper surface 13.

[0005]

[Action]

 When the handle 4 is pulled up in the opening direction from the state of FIG. 1 against the elastic force of the taper cylinder portion 14, it opens as shown in FIG. 2, and at this time, the taper cylinder portion 14 returns to its original state due to elasticity. It can be seen at a glance that the handle 4 once opened is used without being fitted again to the outer circumference of the tapered cylindrical portion 14. Then, the cap body 2 can be easily removed from the mouth / neck 5 by holding the open handle 4 and pulling it up obliquely.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 6 show an embodiment of the present invention, in which 1 denotes a cap. The cap 1 is a synthetic resin integrally molded product formed by a method such as injection molding, and is composed of a cap main body 2 and a ring plate-shaped handle 4 integrally connected to the main body 2 via a connecting plate 3. ing.

The cap body 2 has a cylindrical shape with a lower end surface opening formed by extending a top wall 7 that closes the upper end opening of the mouth / neck part 5 from the upper end edge of the peripheral wall 6 fitted to the outer periphery of the container body neck part 5, The projecting ridge 8 provided around the lower end of the inner surface of the peripheral wall 6 is elastically laid over and engaged with the lower surface of the projecting ridge 9 provided around the outer periphery of the mouth / neck portion 5 so as to be fitted so as not to slip out. Further, the outer surface of the seal tube portion 10 vertically extending from the peripheral edge of the back surface of the top wall 7 with the peripheral wall 6 at a predetermined interval is fluid-tightly fitted to the inner surface of the neck portion 5 of the container body. Further, the central portion of the top wall 7 is formed as a raised portion 7a which is raised in the shape of a short cylinder having a predetermined size. Further, a flange 11 is provided around the lower end edge of the peripheral wall 6 fitted to the outer periphery of the container neck 5 so that the cap 1 cannot be removed by putting a finger on the lower end edge of the peripheral wall 6. .

The handle 4 is in the form of a ring plate placed on the top surface of the cap body top wall 7, and has one end connected to a recess 12 formed by denting the rear center of the container body top wall 7 downward. The other end of the belt-shaped connecting plate 3 having a central part is connected to the main body 2 so as to be openable and closable. The inner peripheral surface of the handle 4 is formed as a taper surface 13 that expands upward, and is locked so that it cannot be opened by an outer surface of a taper cylindrical portion 14 that projects upward from the top surface of the main body top wall 7.

The tapered cylindrical portion 14 is initially formed as a cylindrical portion, and is formed in the tapered cylindrical portion 14 by post-processing. That is, as shown in FIG. 4 (a), the entire cap 1 is integrally formed by injection molding or the like with the handle 4 opened horizontally and the cylindrical portion 14A standing upright at a predetermined position in the center of the top wall 7. Then, as shown in FIG. 4 (b), the handle 4 is rotated and fitted to the outer surface of the cylindrical portion 14A (shown in an enlarged view in FIG. 5), and then ultrasonic waves and heating are applied as shown in FIG. 4 (c). A cylindrical portion 14A is formed on the tapered cylindrical portion 14 by a heating jig 15 such as a blade and the grip 4 is locked (shown in an enlarged view in FIG. 6). As shown in FIG. 5, if the small protrusion 16 for locking the grip 4 is provided around the outer surface of the cylindrical portion 14A, the tapered cylindrical portion 14 can be formed more easily. In addition, reference numeral 17 in the drawing denotes a recess for holding a finger when the handle 4 is opened.

[0011]

[Effect of device]

 As described above, in the cap of the present invention, the inner peripheral surface of the ring-shaped handle is formed into a taper surface that widens upward, and the outer surface of the elastic taper cylindrical portion erected from the top surface of the top wall of the cap body is brought into contact with the taper surface. Since it is configured to contact and lock, it is possible to express the unused state of the contents without using a shrink pack as in the past, and because it can be formed by integral molding of synthetic resin, it can be manufactured at low cost.

Further, in spite of the extremely simple structure in which the outer surface of the elastic tapered cylindrical portion is brought into contact with and locked to the tapered surface, the handle can be securely locked to the cap body, and the one-end locking can be performed. When released, it does not return to the original engaged state again and has an excellent virgin seal function.

Further, it is extremely difficult to disengage the cap body from the mouth / neck portion of the container body when the grip is engaged, but if the grip is disengaged, the cap body can be easily detached from the mouth / neck part. I can.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the same embodiment with the handle open.

FIG. 3 is a perspective view showing a state where a handle of the embodiment is opened.

FIG. 4 is an explanatory diagram illustrating a case where the handle of the embodiment is locked.

5 is an enlarged sectional view of FIG. 4 (b) of the same embodiment.

FIG. 6 is an enlarged sectional view of FIG. 4 (c) of the same embodiment.

[Explanation of symbols]

2 ... Cap body, 3 ... Connection plate, 4 ... Handle, 5 ... Mouth neck, 6 ... Peripheral wall, 7 ... Top wall, 8 ... Ridge, 9 ... Ridge, 13 ... Tapered surface, 14 ... Tapered cylinder

Claims (1)

[Scope of utility model registration request] 1. A ridge 9 provided around the outer periphery of the neck 5 of the container body.
A peripheral wall 6 which is provided on the inner surface is fitted with a protrusion 8 which is elastically mounted on the lower surface, and a top wall 7 which closes the upper end opening of the mouth / neck portion 5 is extended from the upper edge of the peripheral wall 6. An inner peripheral surface of the handle 4 includes a cap body 2 and a ring plate-shaped handle 4 which is integrally connected to the rear portion of the body via a connecting plate 3 and which is placed on the body top wall 7. Is formed on the tapered surface 13 that spreads upward, and the elastic taper cylindrical portion 14 is erected from the center of the upper surface of the top wall 7 of the cap body.
A cap made of synthetic resin, the outer surface of which is brought into contact with and locked by the tapered surface 13.