JPH0737265B2 - Can container - Google Patents

Description

TECHNICAL FIELD The present invention relates to an opening / closing structure of a can container, particularly a can lid.

[Prior Art] Conventionally, a wide cutout is provided at a lower end opening edge of a cylindrical can lid which is externally fitted to a cylindrical can body, and a wide pressure is applied from an upper end of the can lid corresponding to the cutout. By pressure contact with the shoulder portion of the can of the notch, the can lid side opposite to the notch is tilted upward,
A can lid opening / closing structure is known in which the can lid can be easily detached from the can body by this inclination.

[Problems to be Solved by the Invention] The above-described conventional can lid opening / closing structure is applied to a can container that does not require airtightness, specifically, a can container in which a metal can body is directly fitted with a metal can cover. It is exclusively used.

Therefore, according to the present invention, an inner cap made of a synthetic resin is provided inside the can lid, the inner cap being made of synthetic resin and having a groove that is tightly fitted into the opening edge of the can body by fitting the can lid onto the can body. The present invention relates to a can container on the assumption that the fitting relationship between the body and the can lid is kept airtight. In this case, since the opening edge of the can body is closely fitted in the groove of the inner cap, The fitting relationship with the can lid becomes hard, and especially when the can lid is tilted, the can lid side with the notch bites into the groove, so it is necessary to release this biting by some means. is there.

Therefore, according to the present invention, a spring means is attached to the inner cap, and the elastic return force of the spring means is used to push up the can lid side having the notch, so that the inner cap is provided. The purpose is to solve the difficulty of withdrawal.

[Means for Solving the Problems] The present invention for achieving the above object is to form a wide notch in a lower end opening edge of a cylindrical can lid that is externally fitted to a cylindrical can body. In a can container in which the can lid side opposite to the notch is tilted upward by pressure contact with the can body shoulder portion of the notch by the lower pressure from the can lid upper end corresponding to this notch, inside the can lid, An inner cap made of synthetic resin is provided with a groove that is tightly fitted tightly to the opening edge of the can body. The inner cap is abutted against the opening edge of the can body, and the inclination of the can lid is set. Thus, the gist is to provide a spring member for flexibly accumulating so as to raise the notched can lid side with the opening edge as a fulcrum.

[Example] As shown in FIG. 1, a cylindrical can lid 1 is externally fitted to a cylindrical can body 1, and by this fitting, an outer peripheral shoulder portion 3 (a bead in some cases). In a can container of a type in which a wide arc-shaped cutout 4 is provided at the lower end opening edge of the can lid 2 which is abutted against the inner surface of the can lid 2, a synthetic resin inner cap 5 is provided inside the can lid 2. The inner cap 5 has a top plate 5a, and the upper surface of the top plate 5a is adhered and fixed to the inner surface of the can lid 2.
Further, the top plate 5a has a downward bulging portion 5b, two parallel parallel cuts 5c are attached to the bulging portion 5b, and the base member is connected to the bulging portion 5b through the cut 5c. 5d is integrally molded, and the tip of this spring member 5d is positioned corresponding to the notch 4 of the can lid 2. In addition, a groove 5e having a downward U-shaped cross section which is fitted to the opening end face of the can body is formed in the lower end opening peripheral edge of the inner cap 5 in a range excluding the spring member 5. The spring member 5 may be formed separately.

[Operation] In the can lid fitted state of FIG. 2, the notch 4 of the can lid 2 faces above the shoulder portion 3 of the can body 1. The tip of the spring member 5d is in contact with the opening edge of the can body 1. Furthermore, the opening edge of the can body 1 is closely fitted into the groove 5e of the inner cap 5.

Therefore, when the upper end portion of the can lid 2 corresponding to the notch 4 is strongly pressed down with a fingertip, the spring member 5d is forcibly bent with the upper end edge of the can body as a fulcrum as shown in FIG. The can lid side opposite to 4 is lifted in an inclined shape, and the groove 5e of the inner cap on the lifted side is detached from the opening edge of the can body 1.

In the inclined state, the opening edge of the can body 1 on the side of the notch 4 is still in a state of being bitten by the groove 5e of the inner cap 5 on that side, but the force restoring force of the spring member 5d forcibly bent is stored. Thus, the can lid side having the notch 4 is separated from the groove 5e.

As described above, according to the present invention, the can lid is easily detached from the can body by tilting the can lid, and the inner cap made of synthetic resin is provided inside the can lid. There is no difference in the can container in which the fitting relationship between the can body and the can lid is made airtight by the cap, but particularly in the present invention, the inner cap is brought into contact with the opening edge of the can body, and As the can lid is tilted, a spring member is installed to bend and store the can lid side with the notch as the fulcrum to raise the notched can lid side.Therefore, when the can lid is tilted as described at the beginning, it is reversed. It is difficult to easily remove the can lid side because the can lid side with a notch is notched in the groove of the inner cap, but it can be easily removed due to the elastic restoring force accumulated in the spring member. By the way, the inner cap was provided It solves the difficulty of removing the can lid caused by
Its features are great.

[Brief description of drawings]

1 is a front view of the can container, FIG. 2 is a partial side sectional view of the same as above, FIG. 3 is a bottom view of the can lid, and FIG. 4 is a partial side sectional view showing the detached state of the can lid. is there. 1 ... Can body, 2 ... Can lid, 3 ... Can body shoulder, 4 ... Notch, 5 ... Inner cap, 5d ... Spring member.

Claims (1)

[Claims] 1. A wide cutout is formed at a lower end opening edge of a cylindrical can lid which is externally fitted to a cylindrical can body, and the above-mentioned pressure is applied from the upper end of the can lid corresponding to the cutout. In a can container in which the can lid side opposite to the notch is tilted in a raised shape by pressure contact with the shoulder of the can body, the inside of the can lid is closely fitted to the opening end edge of the can body in a sandwiched manner. Providing a synthetic resin inner cap with a groove,
A spring member that is abutted against the opening end edge of the can body to the inner cap, and that is bent and stored so as to lift the notched can lid side with the opening end edge as a fulcrum due to the inclination of the can lid. A can container characterized by being provided.