JP2003072801A - Safety cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disable a cap from being opened unless a control plate is operated so as to allow prevention of misuse by a child or the like and also to improve operativity when there is no fear for misuse. SOLUTION: The safety cap comprises a cap body 1 whose part of an outer peripheral wall 2 is formed as an elastically deformable control plate 6, and a lid which can be detachably fitted over an upper part of the body. The lid can be removed from the cap body 1 by elastically deforming an upper part of the control plate 6 inwardly, thereby disengaging the lid from a peripheral wall of the lid. A projection 9 with which an upper end of the control plate 6 can be engaged is formed on a lower surface of a part of a top plate 3 of the cap body outward from a fitting cylinder 12a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety cap attached to the mouth and neck of a container.

[0002]

2. Description of the Related Art As a safety cap of this type, as described in, for example, Japanese Unexamined Patent Publication No. 10-264953, a substantially hemispherical spout having a spout tightly attached to the mouth of a container and having a spout formed on a top plate. It has a topped cylindrical assembly part with a protruding head piece, and a short tubular hanging tubular piece is hung from the extended end of the outer collar extending from the peripheral edge of the top plate. A skirt cylinder is hung from the lower end of the skirt through an outer flange-shaped outer flange, and a cutout is provided on at least one side of the combination of the outer rim, the hanging cylinder piece, the outer flange, and the skirt cylinder to insert the bullet piece. A cap body that is made to remain in an upright shape and has a locking piece protruding from the upper end of the outer surface of the bullet piece is hinged to the rear end of the cap body so that it can be opened and closed by a hinge, and the jet outlet is formed on the lower surface of the top wall. Is provided, and the locking piece is provided on at least one side of the peripheral wall that is externally fitted to the hanging cylinder piece. A lid provided with a locking hole that fits and synthetic resin caps consist known from the side.

[0003]

In the above-mentioned known example, the plug piece cannot be removed from the cap body unless the upper part of the bullet piece is pushed inward to separate the locking piece inward from the locking hole. It is possible to prevent misuse by children and the like. However, if there is no risk of misuse such as when there are no children, the above operation is not necessary.

The present invention has been made in view of the above,
An object of the present invention is to provide a safety cap that enables prevention of misuse and has improved operability when there is no risk of misuse.

[0005]

As a first means, a cap main body 1 is formed by a parting line of an outer peripheral wall 2 by a separating line on an operation plate 6 which is elastically deformable inward with a lower end portion as a fixed end.
And a lid 20 detachably fitted to the upper part of the main body, the outer peripheral wall 2 of the lid and the outer surface of the upper portion of the operating plate 6 are provided so as to be engageable via the first engaging means, and the operating plate is provided. 6 In the safety cap in which the lid 20 is detachably provided from the cap body 1 by elastically deforming the upper part inwardly to release the engagement with the lid peripheral wall 21, the operation plate 6 is elastically deformed inwardly. At the position, the operation plate 6 is moved to the cap body 1 via the second engaging means.
Is provided so that it can be engaged with.

As the second means, the fitting cylinder 12 which has the first means and which can be mounted on the outer surface of the mouth / neck portion 11 of the container is hung from the top plate 3 of the main body.

As the third means, the second means is provided, and the second engaging means has the operation plate upper end formed on the lower surface of the cap body top plate 3 portion outside the fitting cylinder 12a. It consists of a protrusion 9 that can be engaged.

As a fourth means, the second means is provided, and the second engaging means is formed by piercing a parting line 30 on a part of the cap body top plate 3 outside the fitting cylinder 12a. The elastic bending plate 3 that can be engaged with the upper end of the operation plate
It consists of two.

As a fifth means, it has a second means, and the second engaging means engages with the upper end portion of the operation plate formed on the top plate portion of the cap body outside the fitting cylinder 12a. It consists of a notch 41 that can be fitted.

As a sixth means, the second means is provided, and the second engaging means is formed on the engaging projection 50 vertically provided on the outer surface of the fitting cylinder 12a and the inner surface of the operation plate 6. And an engaging groove 51 that can be engaged with the engaging protrusion 50.

As a seventh means, any one of the first to sixth means is provided, and each of the operating plate, the first engaging means and the second engaging means is positioned substantially axisymmetrically to form a pair. Formed.

As the eighth means, any one of the first to sixth means is provided and the lid 20 is connected via the hinge 25.

As ninth means, the eighth means is provided, and the operation plate, the first engaging means and the second engaging means are respectively provided at positions facing the hinge 25.
Formed.

[0014]

1 to 4 show a first embodiment of a safety cap according to the present invention. In the following, for convenience of description, the left and right sides of the drawing are the left and right directions of the cap. Reference numeral 1 denotes a cap body, which forms an outer surface of an upper end portion of an outer peripheral wall 2 into a small outer diameter portion through an upward step, and closes an upper surface of the small outer diameter portion with a top plate 3 and a central portion of the top plate with a hemisphere. It is raised in a shape and the ejection port 4 is formed at the top of the raised portion.

Further, a U-shaped split groove 5 is vertically provided on both the left and right portions of the outer peripheral wall 2 when viewed from above, leaving the lower end portion, and the outer peripheral wall portion separated by the split groove is fixed at the lower end portion. The operation plate 6 which is elastically deformable inward is formed as an end. At this time, the operation plate is inclined upward and outward, and the fitting projection 7 is formed in the circumferential direction on the outer surface of the small outer diameter portion of the operation plate.

On the other hand, the left and right portions of the top plate 3 are formed with notches 8 into which the upper ends of the operating plates 6 can be loosely fitted, and ridges 9 are formed on the lower surface of the peripheral edge of the notches to form the protrusions. By inclining the outer surface of the ridge downward inward, the upper end of the operation plate 6 can ride over the ridge 9 when elastically deformed and engage with the inner surface of the ridge. The ridge portion constitutes second engaging means. Further, the inner and outer double cylinders 12 fitted to the upper part of the mouth / neck portion 11 of the container 10 are vertically provided from the lower surface of the central portion of the top plate 3.

Reference numeral 20 denotes a lid, which is a fitting long hole in which the fitting projections 7 can be detachably fitted to both left and right portions of the peripheral wall 21 whose lower portion can be detachably fitted to the small outer diameter portion of the cap body 1. 22 is formed. The fitting protrusion 7 and the fitting elongated hole 22 constitute a first engaging means. In addition, a fitting cylinder 24 that is detachably fitted from the central portion of the lower surface of the top wall 23 that closes the upper surface of the peripheral wall 21 to the outer surface of the raised portion with the ejection port 4 is provided vertically.

Further, the rear portion of the peripheral wall 21 is connected to the outer periphery of the upwardly facing step portion of the cap body via a hinge portion 25. The hinge portion is composed of a thin hinge and tension springs located on the left and right sides of the hinge, and the tension spring serves to hold the lid 20 in the open state shown in FIG. In FIG. 1, 2
6 is an elastic retaining plate projecting from the front outer surface of the small outer diameter portion of the cap body outer peripheral wall 2, 27 is a slip stopper formed on the front outer surface of the lid peripheral wall 21, and 28 is an inner surface of the front lower end of the lid peripheral wall. With the attached engaging portion, the engaging portion 28 can be engaged with the locking plate 26 by closing the lid.

Next, the operation of this embodiment will be described.
FIG. 2 shows the cap body 1 when the lid is closed without the lid, and the fitting projection 7 is fitted into the fitting long hole 22. Therefore, in this state, the lid 20 cannot be rotated upward about the hinge portion 25 to open the lid, and misuse can be prevented.

To open the lid, the upper portions of the left and right operation plates 6 are pushed inward and elastically deformed to separate the fitting protrusion 7 from the fitting elongated hole 22 inward, and then the lid 20 is moved upward. Rotate to. When the operation plate 6 is pushed inward, its upper end portion is formed so as to be able to contact the outer surface of the ridge portion 9,
When the lid is normally opened, the pushing of the operation plate may be stopped at the time of contact.

If there is no risk of misuse, the operation of the operation plate 6 for opening the lid is troublesome. In order to avoid this trouble, the fitting protrusion 7 may be always separated from the fitting long hole 22 inward. For that purpose, as shown in FIG. 3 and FIG. 4, the operation plate 6 is pushed inward more strongly than when the lid is normally opened, and the projecting ridge portion 9 is forced to get over, so that the upper end portion of the operation plate is projected. It may be engaged with the inner surface of the ridge 9. In order to prevent misuse again,
The operation plate 6 may be separated from the ridge 9.

5 to 9 show a second embodiment.
Since only the second engaging means is different from the first embodiment, the second engaging means will be described here, and the description of other configurations will be omitted. Second in the first embodiment
The engaging means is composed of the ridge portion 9, but in the present embodiment, it is composed of an elastic bending plate as described in claim 4.

That is, a pair of narrow notches 30 are formed on both the left and right portions of the top plate 3, and the base end portion of the top plate portion between these notches is thinned as shown in FIG. Three
1, the top plate portion between both cutouts is formed into an elastic bending plate 32 which can be bent downward, and the bending plate is formed with a long hole 33 into which the upper end of the operation plate 6 can be loosely fitted. .

Next, the operation of the second embodiment will be described. As shown in FIG. 5 and FIG. 6, when the purpose is to prevent misuse, the elastic bending plate 32 is located above the operation plate 6, and therefore, in order to open the lid, the first Similar to the embodiment, it is necessary to push both operation plates 6 inward to separate the fitting protrusion 7 from the fitting long hole 22.

When there is no risk of misuse, the elastic bending plate 32 is bent downward while pushing both operation plates 6 inward as shown in FIGS. 7 to 9, and the long hole 33 is operated. By loosely fitting the upper end portion of the plate 6, the fitting protrusion 7 is held in a state of being separated from the fitting elongated hole 22 inward. In this state, the lid can be freely opened without requiring the operation of the operation plate 6. Again, in order to prevent misuse, the elastic bending plate 32
It suffices to disengage from the operation plate 6 upward.

10 and 11 show a third embodiment. Since only the second engaging means is different from the first embodiment, the difference will be described here, and the description of other configurations will be omitted. In the present embodiment, as described in claim 5, the second engaging means is composed of concave and convex engaging means.

That is, the first notch 40 into which the upper end of the operation plate 6 can be loosely fitted is formed on both left and right parts of the top plate 3, and
An arcuate second notch 4 is formed in the middle of the first notch in the front-rear direction.
1 is formed, and a projection 42 having an arc-shaped cross section is formed at the upper end of the operation plate 6. Then, the second notch 41 and the protrusion 42 are pressed by the protrusion so that the protrusion 42 causes the second notch 4 to move.
The opening of No. 1 is expanded so as to be elastically recoverable so as to be fittable.

Next, the operation of the third embodiment will be described. As shown in FIG. 10, when it is possible to prevent misuse, the protrusion 42 is separated from the second cutout 41.
In order to open the lid, push the tip ends of the protrusions 42 of both operation plates 6 until they come into contact with the openings of the second cutouts 41, and disengage the fitting protrusion 7 from the fitting elongated hole 22. Good.

When there is no risk of misuse, both operating plates 6 are brought into contact with the openings of the second cutouts 42 and then pushed further to fit the projections 42 into the second cutouts 41. Good. Again, in order to prevent misuse, the protrusion 42
May be separated from the second cutout portion 41 to the outside.

12 to 16 show a fourth embodiment. Since only the second engaging means is different from the first embodiment, the second engaging means will be described here, and the description of other configurations will be omitted. In this embodiment, as described in claim 6, the outer cylinder 12 forming the inner and outer double cylinders 12
Engaging projections 50 having an arcuate cross section are vertically provided on both left and right portions of a, and an engaging groove 51 having an arcuate cross section and having an opening that can be expanded by elastic deformation is vertically provided on the inner surface of the operation plate 6. By doing so, the second engaging means is formed.

Next, the operation of the fourth embodiment will be described. As shown in FIGS. 12 and 13, in order to prevent misuse, the engagement groove 51 is disengaged from the engagement protrusion 50. In order to open the lid, the engagement grooves 51 of both operation plates 6 may be pushed until they come into contact with the engagement projections 50, and the fitting projections 7 may be separated from the fitting elongated holes 22.

When there is no risk of misuse, the engaging grooves 51 of both operation plates 6 are brought into contact with the engaging ridges 50 and then further pushed to fit the engaging grooves 51 into the engaging ridges 50. You can combine them. Again, in order to prevent misuse, the operation plate 6
The engaging groove 51 may be disengaged from the engaging protrusion 50 by placing a finger on the upper end of the and elastically deforming outward.

In any of the first to fourth embodiments, the operation plate, the first engaging means and the second
Although each of the engaging means is provided on both the left and right portions of the cap, the engaging means is not limited to this, and it is also possible to provide only one on the front portion of the cap.

[0034]

According to the present invention, the first engaging means is released by pushing the operation plate, the lid is detachably provided from the cap body, and the operation plate is engaged with the cap body.
Since the engaging means is provided, when opening the lid, the lid cannot be removed unless the operation plate is pushed inward, and thus it is possible to prevent misuse by children and the like, and of course misuse. When there is no fear of the operation, the operation plate can be engaged with the cap body by the second engaging means, and therefore, the operation by the operation plate can be made unnecessary at the time of opening the lid, and thus the opening of the lid cannot be performed. It will be easier.

[Brief description of drawings]

FIG. 1 is a perspective view of a safety cap according to the present invention.

FIG. 2 is likewise a half cross-sectional view of the cap body without the lid.

FIG. 3 is likewise an explanatory view of the operation.

FIG. 4 is likewise a half cross-sectional view showing a state in which the operation plate is locked to the cap body.

FIG. 5 is a half sectional view showing a second embodiment of the cap body.

FIG. 6 is likewise a perspective view of FIG.

FIG. 7 is likewise a half sectional view showing a locked state of the operation plate.

FIG. 8 is likewise a partially enlarged view of FIG. 7.

FIG. 9 is likewise a perspective view of FIG. 7.

FIG. 10 is a perspective view showing a third embodiment of the cap.

FIG. 11 is likewise a perspective view showing a locked state of the operation plate.

FIG. 12 is a half sectional view showing a fourth embodiment of the safety cap.

FIG. 13 is a sectional view taken along line XX of FIG.

FIG. 14 is likewise a perspective view showing an open state.

FIG. 15 is likewise a half cross-sectional view showing a locked state of the operation plate.

16 is a sectional view taken along line YY of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cap main body 2 Outer peripheral wall 3 Top plate 6 Operation plate 9 Projection part 10 Container 11 Mouth neck part 12 Fitting cylinder 20 Lid 21 Peripheral wall 25 Hinge 30 Separation line 32 Elastic bending plate 40, 41 Cutout part 42 Projection part 50 Engagement projection Article 51 Engagement groove

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroshi Mizushima             2-6, 3-6 Oshima, Koto-ku, Tokyo             Inside the Nokogyo Plant F-term (reference) 3E084 AA02 AB01 BA02 EB02 FA08                       FC04 GA06 GB06 KB01 LB02

Claims (9)

[Claims] 1. A cap main body 1 formed by an operation plate 6 which is elastically deformable inward with a lower end portion as a fixed end, and a part of an outer peripheral wall 2 can be detachably fitted to the upper portion of the main body by a separating line. The lid outer peripheral wall 2 and the upper outer surface of the operation plate 6 are engaged with each other via the first engaging means, and the upper portion of the operation plate 6 is elastically deformed inward to cover the lid peripheral wall. In a safety cap in which the lid 20 is detachably provided from the cap body 1 by releasing the engagement with 21, the operation plate 6 is elastically deformed inward, and the operation plate is operated via the second engagement means. A safety cap, wherein 6 is provided so as to be engageable with the cap body 1. 2. The safety cap according to claim 1, further comprising a fitting cylinder 12 which is mounted from the main body top plate 3 to the outer surface of the mouth / neck portion 11 of the container. 3. The second engaging means comprises a projection 9 formed on the lower surface of a portion of the cap body top plate 3 outside the fitting cylinder 12a, with which the upper end of the operation plate can be engaged. The safety cap according to claim 2. 4. The second engagement means is provided with a parting line 30 on a part of the cap body top plate 3 outside the fitting cylinder 12a.
The safety cap according to claim 2, comprising an elastic bending plate 32 formed by punching and capable of engaging with the upper end portion of the operation plate. 5. The second engaging means comprises a notch portion 41 formed on the top plate portion of the cap main body outside the fitting cylinder 12a, with which the upper end portion of the operation plate can be engaged. The safety cap according to claim 2. 6. The second engaging means is an engaging projection 50 vertically provided on the outer surface of the fitting cylinder 12a and an engaging projection formed on the inner surface of the operation plate 6 and engageable with the engaging projection 50. The safety cap according to claim 2, wherein the safety cap comprises a mating groove 51. 7. The operation plate, the first engaging means, and the second engaging means are formed in a pair so as to be positioned substantially axially symmetrically to form a pair. Safety cap. 8. The safety cap according to any one of claims 1 to 6, wherein the lid 20 is connected via a hinge 25. 9. The safety cap according to claim 8, wherein one of each of the operation plate, the first engaging means and the second engaging means is formed at a position facing the hinge 25.