JPH0728050U - cap - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a cap in which rust is not mixed in the contents and which can gently open the upper lid at an appropriate speed by the restoring force of the rubber-like elastic body. A cap 1 in which an upper lid 15 is integrally formed on a cap body 13 via a hinge 14 and a U-shaped rubber elastic body 42 is provided between the cap body 13 and the upper lid 15.
2, the intermediate portion 4 of the tip end portion 44 of the rubber-like elastic body 42
The base thickness t connected to 5 is set to be equal to or lower than the height of the outer ring 31A provided on the inner surface of the upper lid 15.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap such as a detergent container.

[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. Further, in such a cap, a leaf spring is arranged between the cap body and the upper lid as in the inventions disclosed in Japanese Utility Model Publication No. 3-69656 and Japanese Utility Model Publication No. 63-88965. The upper lid is opened by the biasing force of the spring.

[0003]

[Problems to be solved by the device]

 However, the leaf spring has a strong urging force, and the upper lid suddenly opens. Further, since the leaf spring is generally made of metal, it is easily rusted, and there is a possibility that the rust may be mixed with the contents in the container poured from the nozzle of the cap body.

An object of the present invention is to provide a cap in which rust is not mixed in the contents and the upper lid can be gently opened at an appropriate speed by the restoring force of the rubber-like elastic body. .

[0005]

[Means for Solving the Problems]

 According to the present invention, an upper lid is integrally formed on a cap body via a hinge so that the upper lid can be freely opened and closed, and a base end portion of a rubber-like elastic body is engaged with a fitting groove formed on a surface of the cap body near the hinge. When the lid is closed, the rubber-like elastic body is elastically deformed between the cap body and the upper lid, and the outer ring of the ridge is provided on the inner surface of the upper lid.When the upper lid is closed, this outer ring is used as the spout of the cap body. In the cap to be fitted, the rubber elastic body has a base end portion that is engaged with the fitting groove of the cap body, a tip end portion that extends along the inner surface of the upper lid when the lid is opened, and a base portion. It has an intermediate part that connects the end part and the tip part, and when the lid is opened, the base end part, the tip part, and the intermediate part form a substantially U-shaped cross section, and the end part of the rubber-like elastic body is The thickness of the root connected to the middle part is set below the height of the outer ring. When the lid is opened, the length of the middle part between the base end and the tip on the U-shaped inner surface side of the rubber-like elastic body is determined by the length of the hinge-side opening edge of the fitting groove on the cap body. The length is set equal to the inner edge of the hinge.

[0006]

[Action]

 The rubber-like elastic body interposed between the cap body and the upper lid is configured to elastically deform when the upper lid is closed, so when the closed state of the cap body and the upper lid is released, this elastic deformation The elastic restoring force of the rubber-like elastic body opens the upper lid. This restoring force is not excessive like the leaf spring, and the upper lid can be gently opened at an appropriate speed.

Further, since the member that gives a restoring force to the upper lid is a rubber-like elastic body and is not made of metal such as a leaf spring, it does not corrode, and the contents poured from the spout of the cap body are mixed with rust. It does not cause entry.

When the upper lid is opened, the length of the intermediate portion between the base end portion and the tip end portion on the U-shaped inner surface side of the rubber-like elastic body is determined from the hinge side opening edge of the fitting groove of the cap body to the upper lid. The length is set equal to the inner edge of the hinge on the side. For this reason, the tip of the rubber-like elastic body engaged in the fitting groove of the cap body always comes into contact with or almost abuts the inner surface of the upper lid when the lid is opened. The inner surface will be slidably contacted and deformed by bending, and will eventually abut the projected outer ring of the inner surface of the upper lid.

The root thickness of the rubber-like elastic body connected to the intermediate portion of the tip is set to be equal to or lower than the height of the outer ring. Therefore, in the process of closing the upper lid, after the front end of the rubber-like elastic body collides with the protruding outer ring on the inner surface of the upper lid as described above, the tip end is bent and deformed so as to be caught in the inner surface of the upper lid. However, the tip end portion and the intermediate portion of the rubber-like elastic body can be reliably compressed and deformed without coming off from the protrusion outer ring.

That is, when the upper lid is closed, the rubber-like elastic body can be bent without fail to be given elastic deformation by compression, and the elastic deformation restoring force enables the upper lid to be stably opened.

[0011]

【Example】

 FIG. 1 is a schematic view showing a container to which a cap according to an embodiment of the present invention is applied, FIG. 2 is a schematic view showing an opened state of the cap, (A) is a sectional view, and (B) is a plan view. 3A and 3B are schematic views showing a rubber-like elastic body, FIG. 3A being a perspective view and FIG. 3B being a sectional view.

The container 10 has a cap 12 attached to the opening 11 A of the container body 11, and when the cap 12 is in an open state, the container body 11 is squeezed (squeezed) so that contents such as detergent can be removed. Can be poured out.

The cap 12 has an upper lid 15 that can be opened and closed via a hinge 14 on a cap body 13. The cap body 13, the hinge 14, and the upper lid 15 are integrally formed of thermoplastic resin such as polypropylene.

The cap body 13 includes a top surface portion 22 having a spout 21, a mounting tube 23 integrally provided around the spout 21 of the top surface portion 22, and a mounting tube 23 around the top surface portion 22. The outer cylinder 24 is provided. Further, the cap body 13 has a recess 25 at a position facing the hinge 14 of the outer tube 24 on the front surface side of the cap 12. The mounting tube 23 has a round tubular shape and has a ridge engaging portion 26, and the ridge engaging portion 26 is press-fitted and engaged with a ridge engaging portion 11B provided in the opening 11A of the container body 11. As a result, the cap 12 can be attached to the container body 11. The outer cylinder 24 is a round cylinder that fits the outer diameter of the container body 11.

The upper lid 15 has a bowl shape, and the protrusion outer ring 3 capable of maintaining a closed lid state by sealingly engaging the outer edge portion and the inner edge portion of the spout 21 of the cap body 13 respectively. 1A, a ridge inner ring 31B is provided at the center of the inner surface thereof. The spout 21 and the outer ring 31A constitute a closing lid locking means, which are locked to each other when the upper lid 15 is closed to generate a closing lid locking force. Further, the upper lid 15 has an opening operation portion 32 that can apply an opening operation force above the recess 25 provided in the cap body 13 on the front side of the cap 12.

Now, in the top surface portion 22 of the cap body 13, the base end portion 43 of the rubber-like elastic body 42 is locked in the fitting groove 41 opened on the surface near the hinge 14 to close the upper lid 15. At times, the elastically deformable portion (the tip end portion 44 and the intermediate portion 45) extending toward the upper lid 15 side of the rubber elastic body 42 is provided with elastic deformation of compression and bending between the cap body 13 and the upper lid 15. .

The rubber-like elastic body 42 is composed of rubber, elastomer or the like (for example, a methyl vinyl raw rubber synthesized with KE951U manufactured by Shin-Etsu Chemical Co., Ltd. as a compound and C-8 manufactured by the same company as a vulcanizing agent). It The rubber-like elastic body 42 has a substantially U-shaped cross section as shown in FIGS. 2 and 3, and has a base end portion 43 to be fitted into the fitting groove 41 of the cap body 13 and an opening lid of the upper lid 15. It sometimes has a front end portion 44 that extends along the inner surface of the upper lid 15, and an intermediate portion 45 that connects the base end portion 43 and the front end portion 44. When the top lid 15 is opened, these base end portion 43 and the front end portion are included. The section 44 and the intermediate section 45 have a substantially U-shaped cross section. The tip end portion 44 of the rubber-like elastic body 42 is formed in a tapered wedge shape, and when the top lid 15 is closed, the tip end portion 44 comes into contact with the inner surface of the top lid 15, and the tip end portion 44 as the elastically deformable portion is formed. Elastic deformation such as compression and bending is applied to the intermediate portion 45.

Here, the root thickness t 1 connected to the intermediate portion 45 of the tip end portion 44 of the rubber-like elastic body 42 is set to a height h of the outer ring 31A or less, for example, 1.0 mm or less.

Further, when the upper lid 15 is opened, the length a of the intermediate portion 45 sandwiched between the base end portion 43 and the tip end portion 44 on the U-shaped inner surface side of the rubber-like elastic body 42 is determined by the fitting of the cap main body 13. It is set equal to the length L 1 from the hinge side opening edge portion 41A of the groove 41 to the hinge side inner edge portion 15 of the upper lid 15.

That is, as shown in FIG. 1, in the process of closing the upper lid 15, the front end portion 44 of the rubber-like elastic body 42 slides along the inner surface of the upper lid 15 and abuts the outer ring 31A. , Is pressed. By this pressing, the tip end portion 44 of the rubber-like elastic body 42 bends inward, the rubber-like elastic body 42 bends and deforms at the A portion 42A and the B portion 42B, and when the upper lid 15 is closed, the tip end portion 44 is made of rubber. As it is folded between the inner surface 42C of the elastic body 42 and the inner surface of the upper lid 15, it is compressed and deformed.

However, the cap 12 is opened and closed as follows. (1) When the cap 12 is closed, the outer ring 31A of the upper lid 15 is engaged with the spout 21 of the cap body 13 in a sealed state to generate a lid locking force, and the closed state is maintained. At this time, the rubber-like elastic body 42 is subjected to elastic deformation such as bending and compression between the cap body 13 and the upper lid 15.

(2) When the cap 12 is opened, the container main body 11 is grasped with one hand, and the opening operation force applied by the thumb, for example, is used to push up the opening operation portion 32 of the upper lid 15. As a result, the upper lid 15 is pushed up in the opening direction with the hinge 14 as the center, and the outer ring 31A of the upper lid 15 is separated from the spout 21 of the cap body 13. Simultaneously with the disengagement of the outer ring 31A and the spout 21, the elastic restoring force of the rubber-like elastic body 42 in the elastically deformed state (1) acts as the opening force of the upper lid 15 to open the upper lid 15. Cover.

The operation of this embodiment will be described below. Since the rubber-like elastic body 42 interposed between the cap body 13 and the upper lid 15 is configured to elastically deform when the upper lid 15 is closed, the closed state of the cap body 13 and the upper lid 15 is released. Then, the elastic restoring force of this elastically deformed rubber-like elastic body 42 opens the upper lid 15. This restoring force is not excessive like the leaf spring, and the upper lid 15 can be gently opened at an appropriate speed.

Further, the member that gives a restoring force to the upper lid 15 is the rubber-like elastic body 42, which is not made of metal such as a leaf spring and therefore does not corrode, and the contents poured from the spout 21 of the cap body 13 It does not cause rust to be mixed in.

Further, since the one end portion 43 of the rubber-like elastic body 42 is engaged with the fitting groove 41 of the cap body 13 and the adhesive agent or the like is not used, the adhesive agent does not flow out to the contents in the container. Moreover, the phenomenon that the adhesive is deteriorated by the contents does not occur.

When the upper lid 15 is opened, the length a of the intermediate portion 45 sandwiched between the base end portion 43 and the tip end portion 44 on the U-shaped inner surface side of the rubber-like elastic body 42 is the fitting groove 41 of the cap body 13. The length L from the hinge side opening edge portion 41A to the hinge side inner edge portion 15A of the upper lid 15 is set to be equal to the length L. Therefore, the tip end portion 44 of the rubber-like elastic body 42 engaged with the fitting groove 41 of the cap body 13 always contacts or almost contacts the inner surface of the upper lid 15 when the upper lid 15 is opened. In the closing process, the inner surface of the upper lid 15 is slidably bent and deformed, and consequently, the projection outer ring 31A on the inner surface of the upper lid 15 is always abutted.

The root thickness t 1 connected to the intermediate portion 45 of the tip end portion 44 of the rubber-like elastic body 42 is set to be less than or equal to the height h of the outer ring 31A. Therefore, in the closing process of the upper lid 15, after the tip end portion 44 of the rubber-like elastic body 42 abuts the protruding outer ring 31A on the inner surface of the upper lid 15 as described above, the tip end portion 44 comes to the inner surface of the upper lid 15. The rubber-like elastic body 42 is bent and deformed as if it were caught, and the tip portion 44 and the intermediate portion 45 of the rubber-like elastic body 42 are reliably compressed and deformed without coming off from the ridge outer ring 31A.

That is, when the upper lid 15 is closed, the rubber-like elastic body 42 can be surely bent and elastically deformed by compression, and the elastic deformation restoring force can stably open the upper lid 15. Become.

In the cap 12, the rubber elastic body 42 contacts the inner surface of the upper lid 15 when the upper lid 15 is closed (along the curved inner surface from the hinge side inner edge portion 15A of the upper lid 15 to the outer ring 31A). If the length) is K and the lengths of the tip end portion 44 and the intermediate portion 45 of the rubber-like elastic body 42 are b (FIG. 3), the compression rate of the rubber-like elastic body 42 when the lid is closed is (b−K ) / B. A suitable value of the compression rate to be applied to the rubber-like elastic body 42 in order to apply a required opening force to the upper lid 15 is 5 to 11%, more preferably 8% (for example, b = 7.5 mm, K = 6.9 mm).

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. For example, the outer ring of the upper lid may be fitted only to seal the spout of the cap body, and the lid locking means of the upper lid may be provided in another portion.

[0031]

[Effect of device]

 As described above, according to the present invention, it is possible to obtain a cap in which rust is not mixed in the contents and the upper lid can be gently opened at an appropriate speed by the restoring force of the rubber-like elastic body.

[Brief description of drawings]

FIG. 1 is a schematic view showing a container to which a cap according to an embodiment of the present invention is applied.

2A and 2B are schematic views showing an open state of a cap, FIG. 2A is a sectional view, and FIG. 2B is a plan view.

FIG. 3 is a schematic view showing a rubber-like elastic body,
(A) is a perspective view and (B) is a sectional view.

[Explanation of symbols]

 12 cap 13 cap body 14 hinge 15 upper lid 21 spout 31A outer ring 41 fitting groove 42 rubber-like elastic body 43 base end portion 44 tip end portion 45 middle portion

Claims (1)

[Scope of utility model registration request] 1. An upper lid is integrally formed on the cap body via a hinge so as to be openable and closable, and a base end portion of a rubber-like elastic body is inserted into a fitting groove formed on a surface of the cap body near the hinge, and the upper lid is inserted. When the lid is closed, the rubber-like elastic body is elastically deformed between the cap body and the upper lid, and the outer ring of the protrusion is provided on the inner surface of the upper lid.When the upper lid is closed, this outer ring is used as the spout of the cap body. A cap to be fitted, in which a rubber-like elastic body is fitted into a fitting groove of the cap body, a base end portion extending along the inner surface of the top lid when the lid is opened, and a base end portion And an intermediate portion that connects the distal end portion to each other. When the upper lid is opened, the proximal end portion, the distal end portion and the intermediate portion have a substantially U-shaped cross section, and the intermediate portion of the distal end portion of the rubber-like elastic body is formed. The root thickness connected to is set below the height of the outer ring When the lid is opened, the length of the middle part between the base end and the tip of the U-shaped inner surface of the rubber-like elastic body is adjusted from the hinge-side opening edge of the fitting groove of the cap body to the top of the lid. A cap set to have the same length as the inner edge of the hinge.