JPH033482Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This proposal concerns the cap of the container.

``Prior Art'' Conventionally, a container with a cap is known as shown in FIG. The container with a cap has a neck part 32 erected from the upper end of a body part 30 having a rectangular cross section via a tapered shoulder part 31, and a first engaging protrusion 33 on the outer surface of the neck part.
A container body 34 having a container body 34 arranged around it, and a rectangular top wall 35 that closes the upper end opening of the mouth and neck part, and a peripheral wall 36 extending from the periphery
is suspended from the upper surface of the tapered shoulder portion 31, and small plates 3 are suspended from both left and right portions of the lower surface of the top wall 35.
The mouth and neck portion 32 is fitted between the small plates 37 and 37, and second engaging protrusions 38 and 38 are attached to the lower ends of the inner surfaces of the small plates 37 and the inner surfaces of both front and rear walls of the peripheral wall 36, respectively. 2 to the first engaging protrusion 3
3. When the cap 39 is rotated relative to the container body 34,
The cap 39 is pushed up by the lower ends of both front and rear side walls of the cap surrounding wall 36 riding on the upper surfaces of both left and right inner circumferences of the tapered shoulder 31, and the small plates 37, 3
7 and the front and rear side walls of the cap peripheral wall 36 respectively expand elastically to engage the second engaging protrusions 38, 3 of the cap.
8 and the first protrusion 33 on the outer surface of the mouth and neck are disengaged from each other.

"Problems to be Solved by the Invention" The above conventional example uses the tapered shoulder 31 to convert the rotational force of the cap into a lifting force, and further utilizes the lifting force to move the small plates 37, 37 and the peripheral wall of the cap. 3
5 Since the front and rear walls are formed to expand elastically, it is necessary to provide a mechanism to convert the rotational force of the cap into upward force. Specifically, the tapered shoulder portion 31
The manufacturing process was troublesome in that the cap had to be formed so as to be reliably pushed up to a predetermined height.

The purpose of this invention is to eliminate the above-mentioned inconvenience by making use of the rotational force of the cap to disengage the cap from the mouth and neck.

"Means for Solving the Problem" A disk-shaped top plate 7 is attached between the upper ends of the columns 6, 6 that stand up from both sides of the upper surface of the annular body 5, and the columns 6,
A plurality of engaging legs 8 are erected intermittently in the circumferential direction from the top surface of the annular body 5 between the holes 6 and 7 with appropriate gaps between them and the periphery of the top plate 7. A plug body that has an engaging protrusion 9 that protrudes to engage with the lower surface of an engaging protrusion 17 on the outer periphery of the mouth and neck part 16, and seals the spout hole of the mouth nozzle 18 attached to the mouth and neck part 16 from the back surface of the top plate 7. 10 is hung vertically, and the inner surface of the upper free end side of each of the engagement legs 8 is non-rotatably fitted to the outer surface of the mouth and neck part 16 as an inclined surface A whose terminal end side in the scheduled circumferential direction gradually protrudes inward. The inner cap 1 is rotatably fitted onto the outer surface of the inner cap 1 and has a plurality of corresponding driving legs 14 vertically disposed from the back surface of the top wall 11 and inscribed in the inclined surface A of the engaging leg 8. By rotating this outer cap 2 in the predetermined circumferential direction, each drive leg 14 elastically expands the corresponding engagement leg 8 to engage the engagement protrusion 9 with the engagement protrusion 17. The connection is made releasable.

``Operation'' To remove the cap from the state shown in FIG. 1, rotate the outer cap 2 by a slight angle in the direction of arrow A. Then, each of the drive legs 14, which rotate together, pushes each of the corresponding engagement legs 8 outward by the inclined surface A, and each of the engagement protrusions 9 separates from the engagement protrusion 17 to release the engagement. , all you have to do is pull the cap upwards in this state.

Further, in order to fit the cap, it is sufficient to push down the cap from above the mouth and neck, and the engaging legs 8 are elastically expanded, and the engaging protrusions 9 ride over the engaging protrusions 17 and engage with the lower surface.

``Embodiment'' An embodiment of the present invention will be described below with reference to the attached drawings. The cap of the present invention includes an inner cap 1 that is non-rotatably fitted to the neck of the container body, and a cap that rotates around the outer surface of the inner cap 1. The outer cap 2 is movably fitted and is rotated to release the inner cap 1 from the container mouth neck. Both caps are molded from a synthetic resin material.

The inner cap 1 has struts 6, 6 erected from both left and right sides of the inner peripheral edge of an annular body 5, which has an outward flange 3 protruding from the outer surface of the lower end and an engaging protrusion 4 from the outer surface of the upper end. A disk-shaped top plate 7 is provided between the upper ends, and an appropriate gap is provided between the upper ends of the top plate 7 and the periphery of the top plate 7 at intervals in the circumferential direction from the inner periphery of the annular body 5 between the pillars 6, 6. It has a shape in which a plurality of engaging legs 8, 8, .

The inner surface of the upper free end side of each engaging leg 8 is indicated by arrow A.
The rotation operation direction side of the outer cap 2 shown by is an inclined surface A that gradually protrudes inward, and an engaging protrusion 9 protrudes from the inner surface of the intermediate portion of each of these engaging legs 8, and the top plate A protrusion-shaped stopper 10 hangs down from the center of the back surface of 7. Incidentally, the inner surface of the annular body 5 is formed into a square shape as shown in FIG.

The outer cap 2 has an engaging protrusion 13 protruding from the inner periphery of the lower end of a peripheral wall 12 extending from the periphery of the top wall 11, which engages with the lower surface of the engaging protrusion 4, and each of the engaging legs extending from the back surface of the top wall 11. 8 Corresponding drive leg 1 inscribed in the upper part
4, 14... are vertically disposed and rotatably fitted onto the outer surface of the inner cap 1.

In the cap of the present invention, the inner cap 1 is pushed into the outer surface of the neck 16 of the container body 15, and the engaging protrusions 9 of the respective engaging legs 8 are inserted into the engaging protrusions 17 on the outer periphery of the neck 16.
Attach by engaging the bottom surface. At this time, the plug 10 on the back surface of the top plate 7 is inserted into the spout hole of the mouth nozzle 18 attached to the mouth and neck to close it.

The outer shape of the portion 19 below the neck portion 16 of the container body 15 that fits with the annular body 5 of the inner cap 1 is as follows.
As shown in the figure, since the inner cap 1 is formed into a rectangular shape corresponding to the inner surface of the annular body 5, the inner cap 1 will not rotate during the aforementioned rotation operation.

"Effect of the invention" The present invention has the above structure, and the annular body 5
The upper inner surface of the engaging leg 8 that stands up intermittently in the circumferential direction from the upper surface portion is formed into an inclined surface A whose terminal end portion in the predetermined circumferential direction gradually projects inward, and the drive leg 14 that comes into contact with the inclined surface is formed. It hangs down from the lower surface of the top wall 11 of the outer cap, and by rotating the outer cap 2 in the predetermined circumferential direction, each drive leg 14 elastically expands the corresponding engagement leg 8, thereby engaging the engagement protrusion on the outer surface of the container mouth neck. Since the engaging protrusion 9 on the inner surface of the engaging leg 8 is formed to disengage from the strip 17, the rotational force of the cap is not changed into a lifting force as in the conventional example described above, and the outer cap 2 Since the engaging protrusion 17 and the engaging protrusion 9 are formed to disengage from each other by utilizing the rotational force of the cap as it is, there is no need to provide a mechanism to change the rotational force of the cap as in the conventional example, and this makes manufacturing easier. can be formed easily and inexpensively. In addition, both the inner and outer caps 1 and 2 can be fitted and attached to the container mouth by simply pushing them in, and can be removed from the container mouth by turning a slight angle, and can be attached and detached with a single touch, making handling extremely easy. It's simple. Moreover, since this removal is performed by expanding the upper free end side of the engaging leg 8 of the inner cap 1 that is engaged with the container opening, there is an advantage that only a small operating force is required. Furthermore, only two parts, the inner cap 1 and the outer cap 2, are required, and since these have simple shapes, they can be easily and inexpensively manufactured by synthetic resin molding.

[Brief explanation of the drawing]

Fig. 1 is a half longitudinal sectional view showing one embodiment of the cap of the container of the present invention in a state where it is attached to the mouth of the container;
The figure is a sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
4 is a perspective view of the outer appearance of the inner cap, and FIG. 5 is a sectional view showing a conventional container. 1...Inner cap, 2...Outer cap, 15...
...Container body, 18... Mouth nozzle.

Claims (1)

[Scope of utility model registration request] A disk-shaped top plate 7 is attached between the upper ends of the columns 6, 6 that stand up from both sides of the upper surface of the annular body 5, and the columns 6,
A plurality of engaging legs 8 are erected intermittently in the circumferential direction from the top surface of the annular body 5 between the holes 6 and 7 with appropriate gaps between them and the periphery of the top plate 7. A plug body that has an engaging protrusion 9 that protrudes to engage with the lower surface of an engaging protrusion 17 on the outer periphery of the mouth and neck part 16, and seals the spout hole of the mouth nozzle 18 attached to the mouth and neck part 16 from the back surface of the top plate 7. 10 is hung vertically, and the inner surface of the upper free end side of each of the engagement legs 8 is non-rotatably fitted to the outer surface of the mouth and neck part 16 as an inclined surface A whose terminal end side in the scheduled circumferential direction gradually protrudes inward. The inner cap 1 is provided with a plurality of corresponding driving legs 14 which are rotatably fitted onto the outer surface of the inner cap 1 and inscribed in the inclined surface A of the engagement leg 8 from the back surface of the top wall 11. By rotating this outer cap 2 in the predetermined circumferential direction, each drive leg 14 elastically expands the corresponding engagement leg 8 and engages the engagement protrusion 17.
A cap for a container characterized in that the engagement of the engagement protrusion 9 with respect to the cap is releasable.