JPH0226841Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> This invention relates to a cap for a container, and in particular to a cap that is attached to an open cylindrical portion of a container by elastic fitting in a vertically removable manner.

《Background of the invention》 Containers with caps include those in which the cap is screwed onto the open cylindrical portion of the container, and those in which the cap is attached to the open cylinder of the container in an elastic and reversible manner. Generally, the cap is fitted into the container. Of these, the latter fitting structure allows the cap to be attached and removed with a single touch, so it is easier to handle than the former screw-type structure. And as a device that allows you to attach and detach the cap with a single touch,
For example, those related to Utility Model Publication No. 58-20537 and Utility Model Application No. 59-3850 were publicly known.

In other words, in the cap structure according to Utility Model Publication No. 58-20537, a notched recess is formed in the outer circumference of the lid, a pusher piece having an approximately inverted V-shaped cross section is housed in the recess, and the upper end of the pusher piece is radially inward. When pressed, the cap is detached from the container by a lever action using the upper end as a point of force, the lower end of the inner wall of the push piece as a fulcrum, and the lower end of the outer wall of the push piece as a point of action.

In addition, in the cap structure according to Utility Model Application No. 59-3850, a lever member having an L-shaped cross section is integrally attached to the outer cylinder of the cap via a hinge, and when the lower end of this lever member is pulled upward, it acts as a lever. The cap is detached from the container by the .

The above-mentioned known cap structures all use leverage to release the cap, but the direction in which force is applied to the point of force is radially inward in the former, and upward in the latter, which is the direction that causes the container to fall. Because of this, the container had to be gripped firmly, making it difficult to remove the cap.

The present invention is an improvement on the above-mentioned method in which the cap is separated from the container by lever action, and its purpose is to apply force to the point of force vertically downward, thereby allowing the container to be lightly gripped on a table or the like. To provide a cap for a container which has excellent operability for removing the cap, thereby allowing the cap to be removed.

《Means for solving the problem》 In order to achieve the above purpose, in this invention,
A push button that can be slid vertically is attached to the corner of the outer wall and ceiling of the cap body. A fitting cylindrical portion that elastically fits into the opening cylindrical portion of the container is provided integrally with the cap main body at its internal center. A leg piece is integrally provided below the push button, and a lever piece is provided corresponding to the leg piece. One end of the lever piece is hinged to the lower end of the leg piece, the other end of the lever piece is hinged to the cap body at both sides on a line passing through the center of the fitting cylinder part, and the intermediate part of the lever piece is hinged to the cap body. The lower surface abuts the fulcrum of the container. When the push button is pressed downward, the lever piece is pressed by the leg piece and rotates about the fulcrum part to push up the cap body, and this pushing force lifts the cap away from the container. I made it come off.

<<Operation>> That is, when one end of the lever piece is pushed down by the leg piece, the lever piece rotates about its intermediate portion as a fulcrum, so that the other end of the lever piece rises. The other end of this lever piece is hinged to the cap body on both sides of the fitting tube, so when the other end of the lever piece rises, the cap body rises, and the fitting that is integrally formed with the cap body rises. The mating cylinder part also rises and separates from the opening cylinder part of the container, and the cap is removed.

<<Example>> Hereinafter, an example of this invention will be described in detail based on the drawings.

1 to 3 show a first embodiment of this invention. In this embodiment, the main body portion of the container 10 has a rectangular parallelepiped shape, and a pedestal portion 11 that is one step higher than the periphery is formed at the center of the upper surface portion, and an open cylindrical portion 12 is further formed at the center portion of the pedestal portion 11. It is formed protrudingly. A tapered annular locking projection 13 is formed on the outer periphery of the distal end of the open cylindrical portion 12, and a cap is elastically fitted into this portion.

The cap body 20 is a molded plastic product.
It has a rectangular cylindrical outer wall 21 and a ceiling surface 22 that are approximately the same size as the outline of the container 10. However, at one end in the longitudinal direction, the outer wall 21 and the ceiling surface 22
A notch 25 is formed at a corner of the push button 25, and a push button 40 is attached to the notch 25 so as to be freely movable in the vertical direction. The push button 40 substantially fills the notch 25 of the cap body 20, and these two parts form a substantially continuous rectangular parallelepiped shape. Note that the push button 40 is mounted off the center of the cap 20 and in a position that is largely biased to one side.

A fitting cylindrical portion 24, which is one size larger than the outer diameter of the opening cylindrical portion 12 of the container 10, is formed on the lower surface of the center of the ceiling surface 22 of the cap body 20, and this fits the fitting structure between the container 10 and the cap. It becomes the main part. That is, an annular locking projection 27 is integrally formed on the inner peripheral surface of the lower end side of the fitting cylinder portion 24, and the locking projection 27 and the locking projection 13 on the container 10 side are elastically and reversibly connected. The cap main body 20 is vertically removably fitted into the container main body 10 by the proper engagement.

Furthermore, ribs 26 are integrally formed on the inner surface of the longer side of the outer wall 21 of the cap body 20 in the vertical direction on both sides of the line passing through the center of the fitting cylinder part 24. A lever support piece 30 is attached to the lower ends of the two ribs 26, 26 located on both sides of the annular cylindrical portion 24. This lever support piece 30 is also a molded plastic product, and is integrally molded with the lever piece 31 via a thin hinge portion 32. Lever support piece 30
A fitting groove 33 is provided on the upper surface of the end on the thin hinge portion 32 side.
is formed, and this portion is fitted and fixed to the lower end of the rib 26. The opposite end of the lever support piece 30 is fitted into and fixed to a fitting groove 28 formed on the inner surface of the shorter side of the outer wall 21 of the cap body 20. Further, a hinge groove 34 formed by a hook-like projection is formed on the upper surface of the end of the lever piece 31, and a leg piece 41 that hangs below the push button 40 is formed in this hinge groove 34.
The L-shaped protrusion 42 at the lower end of is engaged.

That is, when the cap body 20 is viewed from below, the left side of the central rib 26 is covered with the lever support piece 30, and the right side is covered with the lever piece 31. Note that, in order to prevent the lever support pieces 30 and 31 from interfering with the opening cylindrical portion 12 of the container 10, a hole having a diameter sufficiently larger than the opening cylindrical portion is opened in this portion. The lever piece 31 is rotatable around the thin hinge portion 32 and is also rotatable around the hinge connection point between the hinge groove 34 and the L-shaped protrusion 42 . That is, one end of the lever piece 31 is hingedly connected to the leg piece 41 of the push button 40, and the other end is connected to the cap body 20 side via the hinge part 32 on both sides of the center of the fitting cylinder part 24.

In the state shown in FIG. 2, the cap body 20 is connected to the container 1.
0 is fully fitted. At this time, lever piece 31
The lower surface of the container 10 is in contact with the upper surface of the pedestal portion 11 of the container 10, and is maintained substantially horizontally. When the lever piece 31 is in a horizontal state, the leg piece 41 is pushed up by the lever piece 31, and the push button 40 is in a protruding state.

To remove the cap main body 20 from the above state, as shown in FIG. 3, push the push button 40 firmly from above. This pressing force is transmitted to one end of the lever piece 31 via the leg piece 41 and pushes it downward. Then, the corner of the pedestal part 11 that is in contact with the lower surface of the intermediate part of the lever piece 31 becomes the fulcrum part 14,
The lever piece 31 rotates using this as a fulcrum. Due to this rotation, the inner end of the lever piece 31 is displaced upward.
In other words, the cap body 20, which is integrated with the lever piece 31, the thin hinge portion 32, the lever support piece 30, and the rib 26, is pushed upward. Since the two ribs 26, 26 are located on both sides of the fitting cylindrical portion 24 at the center of the cap body 20, the above-mentioned pushing up force by the lever piece 31 acts on the center of the cap body 20. This force pushes the cap body 20 upward, the locking protrusion 27 elastically rides over the locking protrusion 13 of the container 10, and the cap body 20 is removed from the container 10.

In this way, the container 10 with the main cap attached
The cap body 20 can be easily removed from the container 10 by, for example, grasping the cap body 20 with your hand and pressing the push button 40 provided at the corner of the top surface downward with your finger. Therefore, even if the strength of the fit between the cap and the container is sufficiently increased, the cap can be removed with a very simple operation without failure.

Furthermore, as is clear from the above description, in this cap, a removal force is exerted by the lever action of the lever piece 31. Therefore, if the distance between the fulcrum/force point and the distance between the fulcrum/point of application of the lever piece 31 are set appropriately, the force amplification effect will greatly reduce the pressing force of the push button 40 required to remove the cap. You can also do that.

FIG. 4 shows a second embodiment of this invention. The difference from the first embodiment is that the lever piece 31 is
5 is formed integrally with the lower end of the leg piece 41 of the push button 40. That is, the push button 40, the leg piece 41, the lever piece 31, and the lever support piece 30 are integrally molded. This embodiment also provides the same effects as those of the previous embodiment.

FIG. 5 shows a third embodiment of this invention. In this embodiment, two push buttons 40, 40 are provided symmetrically at both ends of the cap body 20 in the longitudinal direction. In this case, the aforementioned lever support piece 30 is not provided,
Lever pieces 31, 31 are integrally formed on the two push buttons 40, 40 via thin hinge parts 35, respectively, and both lever pieces 31, 31 are further connected to thin hinge parts 32, 32.
It is integrally formed with the common connecting portion 36 via. This connecting portion 36 is connected to the rib 2 of the cap body 20.
It is fixed to 6. In the cap of this embodiment, no matter which of the two push buttons 40, 40 is pressed, the pushing up force by the lever piece 31 acts on the center of the cap body 20, so that the cap body 20 can be pushed up smoothly without causing any bias in the force. can be removed.

FIG. 6 shows a fourth embodiment of this invention. This embodiment is applied to a cylindrical container 10, and the cap body 20 is also formed in a cylindrical shape to match the container 10. A push button 40 is attached to a part of the corner of the annular outer wall 21 and the circular ceiling surface 22 so as to be able to slide vertically off-center. In this case as well, with the same internal structure as above, the same effects as above can be obtained.

Note that the hinge structure between the leg piece 41 of the push button 40 and the lever piece 31, and the hinge structure between the cap body 20 and the lever piece 31 are not limited to the above embodiments, and various hinge structures can be adopted.

<<Effects of the invention>> As explained in detail above, according to the container cap of this invention, even if the fitting strength between the cap and the container is sufficiently increased, the cap can be easily removed, making it extremely easy to use. It will be good.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a cap according to a first embodiment of the present invention fitted into a container, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a state in which the cap of Fig. 2 is removed. 4 is a sectional view of the second embodiment of this invention, FIG. 5 is a sectional view of the third embodiment of this invention, and FIG. 6 is a perspective view of the fourth embodiment of this invention. . DESCRIPTION OF SYMBOLS 10... Container, 11... Pedestal part, 12... Opening tube part, 13... Locking protrusion, 14... Fulcrum part, 20
... Cap body, 21 ... Outer wall, 22 ... Ceiling surface, 24 ... Fitting cylinder part, 26 ... Rib, 27 ...
... Locking projection, 30 ... Lever support piece, 31 ... Lever piece, 32, 35 ... Thin hinge part, 34 ... Hinge groove, 40 ... Push button, 41 ... Leg piece, 42 ... L
mold protrusion.

Claims (1)

[Scope of utility model registration request] This is a cap that is attached to an open cylindrical part protruding from the top surface of a container in a vertically removable manner by elastic fitting, and includes a cap body forming the outer shell of the cap, and a central part inside the cap body. A fitting cylinder part that is integrally provided and elastically fits into the opening cylinder part of the container, a push button that is slidably mounted in the vertical direction on the corner of the outer wall and ceiling surface of the cap main body, and the push button A leg piece is integrally provided below the leg piece, one end is hinged to the lower end of the leg piece, and the other end is hinged to the cap body at both ends on a line passing through the center of the fitting cylinder part. and a lever piece whose intermediate lower surface abuts the fulcrum of the container, and when the push button is pressed downward,
A cap for a container, characterized in that the lever piece is configured to be pressed by the leg piece and rotate about the fulcrum part to push up the cap body.