JPH074360U - cap - Google Patents

Abstract

(57) [Summary] [Object] This invention can prevent the lid opening spring from being contaminated by the internal solution in the container. [Structure] This invention has a hinge 1 attached to a cap body 11.
In the cap 10 in which the upper lid 12 is arranged to be openable and closable via 3 and 14, a spring 26 for opening the upper lid is installed on the upper lid.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap having an improved opening / closing function of the upper lid with respect to the cap body.

[0002]

[Prior art]

 In some conventional caps, the cap body is attached to the mouth of the container, and the upper lid of the cap body is openable and closable. In such a cap body, a leaf spring is arranged between the cap body and the upper lid as in the invention disclosed in Japanese Utility Model Laid-Open No. 63-88965, and the upper lid is opened by the biasing force of the leaf spring. It is the one.

[0003]

[Problems to be solved by the device]

 However, since the leaf spring is installed in the cap body, the leaf spring is exposed when the upper lid is opened when the liquid content in the container is poured out from the nozzle portion of the cap body. Therefore, when the inner solution is poured out from the nozzle, the inner solution is likely to adhere to the leaf spring, and the leaf spring may be contaminated, and further corroded and broken.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a cap capable of preventing the lid closing spring of the upper lid from being contaminated by the internal solution in the container.

[0005]

[Means for Solving the Problems]

 According to the present invention, in a cap in which an upper lid is openably and closably arranged via a hinge on a cap body, a spring for opening the upper lid is installed on the upper lid.

[0006]

Therefore, according to the cap of the present invention, since the lid opening spring is installed on the upper lid, when the internal solution in the container is poured out from the nozzle portion formed on the cap body, The closing spring 26 is arranged at a position away from the nozzle portion. Therefore, it is possible to prevent the closing spring from being contaminated by the internal solution poured from the nozzle.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an open state of a first embodiment of a cap according to the present invention. FIG. 2 is a side sectional view showing a closed state of the cap of FIG. FIG. 3 is a view on arrow III in FIG. FIG. 4 is an operational view showing the function of the snap hinge in the cap of FIG.

As shown in FIGS. 1 and 2, the cap 10 is configured by connecting a cap body 11 and an upper lid 12 with a main hinge 13 and a sub-hinge 14.

The cap body 11 has a tubular shape having a top surface 15. Inside the tubular portion 16, a mounting portion 17 is integrally hung from below the top surface 15. A female screw 18 is formed on the inner surface of the mounting portion 17. On the other hand, a male screw is formed on the mouth (not shown) of the container 19, and the female screw 18 is screwed onto this male screw, whereby the cap 10 is attached to the container 19.

A nozzle portion 20 is integrally provided on the top surface 15 so as to project upward, and a nozzle port 21 is opened in the nozzle portion 20. The nozzle port 21 is provided so as to extend to the inside of the mounting portion 17. Therefore, by squeezing the container 19 or the like, the contents in the container 19 can be projected (pour out) from the nozzle portion 21 via the mounting portion 17.

On the other hand, a stopper 22 is integrally provided on the inner surface of the upper lid 12 so as to project. When the upper lid 12 is closed, the stopper 22 is provided so as to be liquid-tightly fitted into the nozzle opening 21 to seal the nozzle opening 21. In addition, a locking projection 23 is formed on the upper lid 12 at a position opposite to the main hinge 13 and the sub-hinge 14. The locking protrusion 23 is provided so as to be able to engage with the locking recess 24 formed in the cap body 11 when the upper lid 12 is closed, and the closed state of the upper lid 12 is maintained.

The main hinge 13 is thinly formed between the cap body 11 and the upper lid 12, is configured so that only the hinge fulcrum portion can be flexibly deformed, and the position of the hinge fulcrum is fixed. 12 is integrally molded. Further, one sub-hinge 14 is arranged between the cap body 11 and the upper lid 12 on both sides of the main hinge 13 as shown in FIG. Both ends of these sub-hinge 14 are integrally molded in a state where they are fixed to the cap body 11 and the upper lid 12, respectively, and the entire hinge portion is formed thinner than the main hinge 13 so that the entire hinge portion bends. It is configured to be deformable or expandable and contractible, and the position of the hinge fulcrum is variable. Alternatively, both ends of the sub-hinge 14 may be fixed to the cap body 11 and the upper lid 12 after the cap body 11 and the upper lid 12 are molded. The sub-hinge 14 applies an opening force and a closing force to the upper lid 12.

That is, as shown in FIG. 4, the hinge fulcrum of the cap body 11 and the upper lid 12 (the hinge fulcrum of the main hinge 13) is a point O, and both end points of the sub hinge 14 are a point P and a point Q. , If the opening angle of the upper lid 12 when the points P and Q are in a straight line is the opening / closing critical angle θ, the sub-hinge 14 is in the maximum extended state at the opening / closing critical angle θ, and the sub-hinge 14 opens / closes the upper lid 12. Attempts to contract when the angle is outside the critical angle θ. That is, when the upper lid 12 is at the opening / closing critical angle θ or less, tension in the closing direction (closing force) is applied to the upper lid 12, and when the upper lid 12 is at the opening / closing critical angle θ or more, the upper lid 12 is Tension in the opening direction (opening force) is applied. In general, the combination of the main hinge 13 and the sub-hinge 14 that operates in this way is called a snap hinge.

As shown in FIGS. 1 and 2, a spring cover 25 is integrally provided on the inner surface of the upper lid 12 in the vicinity of the main hinge 13 and the sub-hinge 14, and is opened in the spring cover 25. The lid spring 26 is stored. The opening spring 26 is held by being engaged with a locking claw 27 formed on the inner surface of the spring cover 25. A notch 28 is formed in the spring cover 25 on the main hinge 13 side so that a spring receiver 29, which will be described later, does not interfere when the upper lid 12 is opened and closed.

A spring receiver 29 is integrally provided on the top surface 15 of the cap body 11 on the main hinge 13 and the sub-hinge 14 sides. An annular groove 30 is integrally formed on the outer circumference of the spring receiver 29. The spring receiver 29 presses the opening spring 26 when the upper lid 12 is closed to generate an urging force on the opening spring 26. Further, the annular groove 30 accommodates the tip portion of the spring cover 25 when the upper lid 12 is closed.

According to the above-described embodiment, since the lid opening spring 26 of the upper lid 12 is installed on the upper lid 12, the internal melt in the container 19 is discharged from the nozzle opening 21 of the nozzle portion 20 formed in the cap body 11. When pouring out, the spring receiver 26 is arranged at a position separated from the nozzle portion 20, as shown in FIG. Therefore, it is possible to prevent the lid opening spring 26 from being contaminated by the internal solution poured out from the nozzle port 21 of the nozzle part 20. In particular, when the internal solution is a hydrogen peroxide-containing solution or a sodium hypochlorite solution, if the internal solution adheres to the opening spring 26, the spring 26 easily corrodes, but this corrosion can be prevented.

Further, since the lid opening spring 26 is installed in the upper lid 12 near the main hinge 13 and the sub-hinge 14, compared with the case where the lid opening spring 26 is installed near the locking projection 23. Even if the total length of the spring 26 is designed to be short, the opening angle of the upper lid 12 can be set large.

Further, since the lid opening spring 26 is housed in the spring cover 25, not only can the buckling of the lid opening spring 26 be prevented, but the lid opening spring 26 can be opened when the top lid 12 is opened. Can be prevented from being exposed, and the appearance of the cap 10 can be improved.

FIG. 5 is a partial sectional view showing a part of a second embodiment of the cap according to the present invention. FIG. 6 is a side sectional view showing a third embodiment of the cap according to the present invention. In both of these embodiments, the same parts as those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the cap 40 of the second embodiment shown in FIG. 5, the spring receiver 41 formed on the cap body 11 is set above the top surface 15 of the cap body 11 by a height h ₁ . Further, in the cap 50 of the third embodiment shown in FIG. 6, since the height H 2 of the upper lid 12 is large, it is not necessary to provide the cap body 11 with the annular groove 30 for accommodating the tip of the spring cover 25. Further, the spring receiver 51 can be set higher than the top surface 15 by a height h ₂ .

Therefore, according to the caps 40 and 50 of the second and third embodiments, the inner solution stored in the annular groove 30 and the inner solution adhering to the top surface 15 are on the spring receivers 41 and 51. Therefore, it is possible to prevent the opening spring 26 from being soiled or corroded.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and changes in design within the scope not departing from the gist of the present invention can be made. Even if it exists, it is included in the present invention.

[0023]

[Effect of device]

 As described above, according to the cap of the present invention, the upper lid spring can be prevented from being contaminated by the internal solution in the container.

[Brief description of drawings]

FIG. 1 is a perspective view showing an open state of a first embodiment of a cap according to the present invention.

FIG. 2 is a side sectional view showing a closed state of the cap of FIG.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is an operational diagram showing the function of a snap hinge in the cap of FIG.

FIG. 5 is a partial cross-sectional view showing a part of a second embodiment of the cap according to the present invention.

FIG. 6 is a side sectional view showing a third embodiment of the cap according to the present invention.

[Explanation of symbols]

 10 Cap 11 Cap Main Body 12 Upper Lid 13 Main Hinge 14 Sub Hinge 19 Container 20 Nozzle Part 25 Spring Cover 26 Spring for Opening Lid 29 Spring Holder

Claims (4)

[Scope of utility model registration request] 1. A cap in which an upper lid is openably and closably arranged on a cap body via a hinge, wherein a spring for opening the upper lid is installed on the upper lid. 2. The cap according to claim 1, wherein the spring is installed near the hinge on the upper lid. 3. The cap according to claim 1, wherein the spring is housed and arranged in a cover formed on the upper lid. 4. The cap main body is formed with a spring receiver for pressing a spring when the upper lid is opened, and the spring receiver is set above the top surface of the cap main body. Cap described in any one.