WO1992002431A1

WO1992002431A1 - Cap with resiliently reversing lid

Info

Publication number: WO1992002431A1
Application number: PCT/JP1991/000031
Authority: WO
Inventors: Takamitsu Nozawa; Takaharu Tasaki
Original assignee: Yoshino Kogyosho Co., Ltd.
Priority date: 1990-07-27
Filing date: 1991-01-16
Publication date: 1992-02-20
Also published as: JP2532090Y2; AU7056791A; EP0494306A4; EP0608755A1; DE69129469T2; EP0608755B1; DE69105110D1; CA2065342C; DE69129469D1; CA2065342A1; JPH0438959U; DE69105110T2; EP0494306B1; EP0494306A1; AU643497B2

Abstract

A cap or the like having a resiliently reversing lid, in which the top surface of an outer first peripheral wall (2) of a cap (1) or the like is closed with a lid (5) having a second peripheral wall (7) suspending from the outer periphery of a top wall (6) in such manner that the lower end surface of the second peripheral wall (7) rides on the upper end surface of said first peripheral wall; the upper and lower ends of rear surfaces of the first and second peripheral walls (2, 7) respectively, are connected to each other with a hinge (10) and, in addition to said hinge, the rear upper and lower parts of the first peripheral wall (1) are connected to each other with a resilient band plate (12) so that the lid (5) may be opened or closed around said hinge (10); and said hinge (10) is positioned farther back than said resilient band plate and formed into one body with the cap from synthetic resin; and a main object of the invention is to leave none of cutaway part as a trace used to remain in many cases on the lid after removal of the metallic mold when integrally molding a cap of such kind as above from synthetic resin.

Description

Specification

Elastic reversing cap with lid

Technical field

The present invention relates to a cap or the like with a lid that reverses elasticity. In the present invention, a cap or the like means a container with a lid in addition to a cap.

Background art

As a cap with a lid that reverses elasticity, for example, as used in the container of Japanese Utility Model Application No. 63-34049, a so-called three-point hinge is used to connect the cap body and the lid to a synthetic resin. Caps which are integrally molded from a material are known. The cap is formed by integrally connecting a cap main body and a lid for opening and closing the upper surface of the cap main body via a three-point hinge, and the three-point hinge is formed on the upper end of the rear wall of the cap main body peripheral wall and on the cap main body. The lower end of the peripheral wall of the placed lid is connected to the left and right parts by first hinges, and the lower part of the first peripheral wall between the hinges and the lid on the upper end of the lid peripheral wall between the hinges. An L-shaped elastic plate is connected to the front part of the body top wall via second and third hinges.

In order to integrally mold the conventional cap with a three-point hinge with a synthetic resin material, the lid peripheral wall portion in front of the rising portion of the L-shaped elastic plate and the lid top wall portion below the horizontal portion are made of metal. Notches will be cut out to remove the mold, so the notch on the top wall of the lid will damage the appearance of the lid, and because of the notch, it will be incomplete to close the mouth of the cap body with the lid plate. It was all.

The present invention eliminates such a drawback and, as in the conventional example described above, attaches a horizontal plate to the elastic plate and extends the horizontal plate to the central portion of the top wall of the lid without removing the horizontal plate. It can be formed only between the rear parts of the cap body peripheral wall and the lid peripheral wall, so that notches need not be provided in the lid peripheral wall and the top wall, that is, the appearance of the lid is improved. It is provided so that the mouth of the cap body can be sealed with a lid when closed. Disclosure of the invention

In the case of the embodiment shown in FIGS. 1 to 5, when the lid 5 is pushed up from the open state of FIG. 5, the end 12b of the curved elastic strip 12 on the lid side becomes the main body. Is moving along an arc a whose radius is the straight-line distance from the side end 12a to the lid side end 12b, but since the lid 5 rotates about the hinge 10, the hinge 10 Will move along a circular arc b having a radius equal to the straight line distance from the above to the lid side end 12b. The intersection of a straight line c passing through the body side end 12a and the hinge 10 and the arc b is a dead point A, and the elastic strip 12 extends up to the dead point against its elasticity. Upon passing, the lid 5 contracts due to elastic recovery, and thus the lid 5 is elastically inverted and closed. The same applies to the case of opening the lid.

In the closed state shown in FIG. 4, the middle portion of the elastic strip 12 may be curved forward.

The embodiment shown in FIGS. 6 to 8 may be considered in the same manner as the first embodiment.

The same applies to the case of the third embodiment shown in FIGS. 9 to 11, but in this embodiment, the elastic strip 12 has a C-shape both when the cover is opened and when the cover is closed. When the lid is closed, the elastic strip 12 is housed in the recess 13. According to this embodiment, it is possible to prevent the elastic strip from being forcibly stretched beyond the limit even at the dead center A where the elastic strip is stretched most.

BRIEF DESCRIPTION OF THE FIGURES

1 to 5 show a first embodiment of the cap and the like of the present invention, wherein FIG. 1 is a perspective view showing an opened state, FIG. 2 is a perspective view showing a closed state from the rear, and FIG. Fig. 4 is a plan view, Fig. 4 is an enlarged sectional view of a main part, Fig. 5 is an enlarged cross-sectional view of a main part in an open state, Figs. 6 to & show the second embodiment, and Figs. Is a perspective view when the lid is closed viewed from the rear side, FIG. 9 is a perspective view showing the lid in an open state, FIG. 8 is an enlarged sectional view of a main part, and FIGS. Fig. 9 shows a third embodiment, Fig. 9 is a perspective view in an open state, Fig. 10 is a perspective view of the closed state as viewed from the rear side, and Fig. 11 is an enlarged side view of a main part.

BEST MODE FOR CARRYING OUT THE INVENTION

First, the first embodiment shown in FIGS. 1 to 5 will be described.

Reference numeral 1 denotes a main body such as a cap having the first peripheral wall 2. When the main body is a cap, the first peripheral wall 2 is formed on the peripheral wall to be fitted to the outer surface of the mouth and neck of the container body. When the cap or the like is the container main body, the lower end surface of the first peripheral wall is formed. Is formed by closing the bottom wall. In the illustrated example, a top plate 4 with a pouring hole 3 is stretched on the upper surface of the first peripheral wall, but the top plate can be removed.

δ is a lid integrally formed of polyethylene or the like together with the main body, and is formed so that the upper surface of the first peripheral wall can be opened and closed by the movement about the hinge described later. The lid hangs down the second peripheral wall 7 from the outer periphery of the top wall 6 and places the lower end surface of the second peripheral wall 7 on the upper end surface of the first peripheral wall 2. The first peripheral wall 2 and the second peripheral wall 7 have a perfect circular shape in a plane, and a rear portion thereof is a vertical surface portion 8, and further, a groove 9 is provided vertically in the left and right middle of the vertical surface portion.

The upper and lower ends of the right and left vertical surfaces of the grooves of the first and second peripheral walls 2 and 7 are connected by curved piece-shaped hinges 10 and 10, respectively, as shown in FIG. The upper end of the portion and the lower end of the groove bottom portion of the second peripheral wall are continuous, and holes 11, 11 are drilled in the first peripheral wall portion and the second peripheral wall portion in front of the continuous portion from the upper and lower end surfaces of each peripheral wall downward and upward. The bottom of the groove 9 behind these holes is formed in the elastic strip 12 by providing the holes. The elastic strip is formed to be curved in advance. As shown in FIG. 5, the lid 5 is opened with respect to the main body 1, and the elastic plate 12 is bent upward to form the main body 1 and the lid. What is necessary is just to integrally mold the body 5 with a synthetic resin material such as polyethylene. A continuous portion between the upper and lower ends of the elastic strip and the second and first peripheral walls is formed so as not to be bent.

FIGS. 6 to 8 show the second embodiment, which is a vertical plane of the first embodiment described above. No part 8 and no groove 9 are provided. In this embodiment, the upper and lower ends of the left and right portions of the rear surfaces of the first and second peripheral walls 2 and 7 each having a flat circular shape are connected to the rear ends of the protruding members 13 and 13 which protrude rearward in a triangular shape. The elastic strip 12 is connected between the hinges 10 and 10 between the lower first peripheral wall and the upper second peripheral wall so that both upper and lower ends of the elastic strip cannot be bent by the peripheral walls. It is stretched continuously. As in the case of the first embodiment, the cap and the like of the second embodiment also have the main body and the lid integrally formed in a closed state.

9 to 11 show a third embodiment. In this embodiment, the upper and lower rear ends of the first and second peripheral walls 2 and 7 each having a planar perfect circular shape are connected by a hinge 10, and a pair of C-shaped elastic members are formed on both left and right sides of the hinge.連結 Connected by plates 12,12. The elastic strip is provided with a continuous recess 13 between the upper and lower portions of the rear surfaces of the first and second peripheral walls 2, 7. The lower and upper ends of the elastic strips 12 and 12 are connected via second and third hinges 14 and 15, and the elastic strips 12 and 12 are accommodated in the recess 13.

In the case of the third embodiment, as in the other embodiments, the cover is formed in an open state as shown in FIG.

Industrial applicability

Since the cap and the like of the present invention have the above-described configuration, the rear portion of the lid peripheral wall and a part of the lid top wall are cut out and the cut-out portion is used like a conventionally known three-point hinged cap. Thus, there is no need to provide an elastic plate, and since the lid does not have a cutout portion, its appearance is not impaired, and the upper surface of the main body such as a cap can be sealed by the lid. In addition, in the case of claim 4, since the elastic band plate has a C-shaped vertical cross section, even when the end of the elastic band plate on the lid side passes through the dead center, the elastic band plate can be passed with a margin for elastic deformation. Also, when closed, the C-shaped elastic band 扳 is stored in the concave portion 13 formed in the rear of the first and second peripheral walls of the main body and the lid, so that the elastic band plate looks like a cap or the like. There is no loss.

Claims

The scope of the claims

(1) The upper surface of the first peripheral wall 2 that the cap or the like main body 1 has on the outer periphery is covered with the lid 5 that hangs from the outer periphery of the top wall 6 to the second peripheral wall 、. The lower end surface is placed and closed, and the upper and lower ends of the rear surfaces of the first and second peripheral walls 2 and 7 are connected by hinges 10, and separately from the hinges, the upper and lower rear portions of the first peripheral wall are elastic bands. The lid 5 centering on the hinge 10 is connected via a plate 12 so as to be openable and closable, and the hinge 10 is positioned rearward of the elastic plate and integrally formed of a synthetic resin material. A cap with a lid that reverses elasticity, etc.

(2) A cap with a lid that reverses elasticity, wherein hinges 10, 10 are provided on both left and right sides of the elastic strip 12.

(3) A cap with a lid that reverses elasticity, characterized in that elastic plates 12, 12 are provided on both left and right sides of the hinge 10.

(4) A continuous concave portion is formed between the upper and lower portions of the first peripheral wall 2 and the second peripheral wall 7, and the lower end and the upper end are connected to the lower end rear edge and the upper end rear end of the concave portion to form four portions. 4. A cap with a lid that reverses elasticity according to claim 1, wherein the elastic strip 12 having a C-shaped cross section is accommodated in the inside.