JP2541933Y2 - cap - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap.

[0002]

[Prior art]

Conventionally, as a cap to be mounted on a container, a screw provided on the inner peripheral surface of the peripheral wall is screwed and mounted on a screw provided on the outer periphery of the neck of the container body. Alternatively, an engagement projection is provided at the lower portion of the inner peripheral portion of the peripheral wall so that the engagement projection can be fitted over the engagement projection provided at the outer periphery of the neck of the container body.

[0003] However, while the former can be firmly and tightly mounted on the mouth and neck, the cap must be rotated many times during attachment and detachment, which is troublesome in handling.

[0004] On the other hand, the latter can be carried out simply by pushing down or pulling up the cap at the time of attachment / detachment, so that it is less troublesome in handling, but has a drawback that it lacks tight fitting properties.

[0005] The present invention proposes an excellent cap which solves the above-mentioned disadvantages of the prior art.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a cap according to the present invention has a cylindrical cap body 2 having an opening at a lower end surface formed by extending a top wall 6 from an upper end edge of a peripheral wall 5, and the main body. A cylindrical fitting portion 11 is vertically suspended from the lower surface of the substrate 10 in which the outer peripheral edge is fitted to the inner surface of the peripheral wall 5 so as to be slidable and non-rotatable in the vertical direction and spaced apart from the peripheral wall 5 of the cap body 2. A movable cylindrical member 3 having a coil spring 4 interposed between an upper surface of a locking projection 7 projecting inward from an inner peripheral lower end of the peripheral wall 5 of the cap body 2 and a lower surface of the substrate 10. The tubular member 3 is constantly urged toward the top wall 6 of the cap body 2 so that the inner peripheral surface of the fitting portion 11 of the movable tubular member 3 can be screwed with the outer periphery of the neck of the container body. By arranging a plurality of vertical grooves 13 and dividing it into an arc plate shape, swinging in and out is possible. Configure the protrusions 1 outward surface to the fitting portion 11 the outer peripheral lower end abutting on the said retaining projections 7 inside surface
4 was provided.

[0007]

When the cap 1 is pulled up from the state shown in FIG. 1, only the cap body 2 rises at first against the resilience of the coil spring 4, and the locking projections 7 of the cap body 2 fit into the fitting portions 11.
When the fitting portion 11 rises to a position above the projecting portion 14 at the lower end of the outer periphery, the fitting portion 11 is caused by the reaction force of the outer surface of the neck portion of the container body (when each fitting tube portion is pressed and urged toward the center, its elastic force). It spreads outward and the cap can be easily removed.

The removed cap 1 pushes up the movable tubular member 3 relatively to its original state by the elastic force of the coil spring 4, and when the movable tubular member 3 is attached to the container again, it is fitted like a normal screw cap. The screw 12 on the inner periphery of the part 11 is screwed to the mouth and neck of the container body, so that it can be mounted tightly.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention, in which 1 indicates a cap. The cap 1 includes a cap body 2, a movable tubular member 3, and a coil spring 4 as main members.

The cap body 2 has a cylindrical shape with a lower end face opening formed by extending a flat top wall 6 from the upper end edge of the cylindrical peripheral wall 5, and has an inward flange shape at the inner peripheral lower end of the peripheral wall 5. The locking projection 7 is provided in a protruding manner. The lower portion of the inner surface of the locking projection 7 is formed in a tapered shape that spreads downward. In addition, concave grooves 8 for fitting the movable tubular member 3 are formed longitudinally on the front, rear, left and right of the inner periphery of the peripheral wall 5.

The movable tubular member 3 is a disk-shaped substrate 10 which is provided on the front and rear and right and left sides of an outer peripheral edge thereof so as to be fitted with the concave groove 8 so as to be vertically movable and non-rotatably mounted. And a cylindrical fitting portion 11 suspended from the lower surface of the substrate 10 to the peripheral wall 5 of the cap main body 2 at a distance from the cap main body 2 at a distance. The mouth and neck B of the container A to be mounted
A thread 12 is screwed on the outer periphery. Also, four wide vertical grooves 13 are formed at predetermined intervals on the cylindrical wall of the fitting portion 11 so as to be divided into four arc-shaped plates to be directed inward and outward. It is configured to be able to swing to. In the present embodiment, the divided arcuate plate-shaped portion is formed in a state in which the lower portion is spread outward in advance, and is always contracted inward to a predetermined position by the locking projection 7 of the cap body 2. I have. Therefore, when the abutment of the locking projection 7 is released, the locking projection 7 is elastically expanded outward.
However, the present invention is not limited to this, and each arc-shaped plate-shaped portion may be hung directly below.

The movable cylindrical member 3 is constantly urged toward the top wall 6 of the cap body 2 by a coil spring 4 interposed between the lower surface of the substrate 10 and the upper surface of the locking projection 7 of the cap body 2.

A projecting portion 14 having a tapered shape with an upper surface descending outwardly along the outer peripheral lower end edge of the fitting portion 11 is provided, and its outer surface is brought into contact with the inner surface of the locking projection 7. It is locked.

Incidentally, reference numeral 15 in the drawing denotes a packing. It is preferable that all of the above members are formed of synthetic resin.

[0016]

[Effect of the Invention] As described above, the present invention cap is
By adopting the above-mentioned configuration, when mounting, it can be mounted tightly by rotating and screwing like a normal screw cap, while when removing it, it can be easily removed just by pulling it upwards, and handling is extremely easy It is convenient.

[Brief description of the drawings]

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

FIG. 2 is a half sectional view showing a state in which the cap of the embodiment is removed from a container body.

FIG. 3 is a plan view of the embodiment.

[Explanation of symbols]

 2 Cap main body 3 Movable cylinder member 4 Coil spring 5 Cap main body peripheral wall 6 Cap main body top wall 7 Locking projection 10 Substrate 11 Fitting part 13 Vertical groove 14 Projecting part

Claims (1)

(57) [Scope of request for utility model registration] 1. A cylindrical cap body 2 having a lower end opening formed by extending a top wall 6 from an upper end edge of a peripheral wall 5;
Movable obtained by vertically cylindrical fitting portion 11 vertically slidable and non-rotatably at a cap body 2 wall 5 and the distance from the substrate 10 a lower surface which is fitted the outer peripheral edge double cylinder shape to the inner surface A cylindrical member 3 having a coil spring 4 interposed between an upper surface of a locking projection 7 protruding inward from an inner peripheral lower end of a peripheral wall 5 of the cap body 2 and a lower surface of the substrate 10; 3 is constantly urged toward the top wall 6 of the cap body 2 so that the inner peripheral surface of the fitting portion 11 of the movable tubular member 3 can be screwed with the outer periphery of the mouth and neck of the container body. Flute 1
3 is arranged so as to be able to swing inward and outward by dividing into an arcuate plate shape, and a protrusion 14 whose outer surface is in contact with the inner surface of the locking projection 7 is provided at the lower end of the outer periphery of the fitting portion 11. A cap characterized by being provided.