JPH089006Y2 - Hinge cap with top lid inversion mechanism - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a synthetic resin hinged cap to be attached to the mouth and neck of a container containing various contents such as liquid and powder. The present invention relates to an easy-to-use hinge cap with an upper lid reversing mechanism that can elastically reverse and hold the opened / closed state of the upper lid.

(Prior Art) Conventionally, as a cap with a hinge made of synthetic resin in which the open / closed state of the upper lid is elastically reversed and held against the main body cap to prevent the upper lid from falling down during use and operability in use, As shown in FIGS. 11 and 12, the upper lid is integrally formed with the cap body while being connected to the hinge portion and the elastic connecting band, and the snap type hinged cap using the elastic neutral point of the elastic connecting band is formed. Widely known and used.

(Problems to be Solved by the Invention) However, the conventional hinged cap shown in FIGS. 11 and 12 has the following problems because the hinge portion projects from the outer cylinder side surface due to its structure.

There is a risk of finger injury at the hinge, which is a safety concern.

When the container body is tubular, as shown in FIG. 13, it is often placed upright in a tray for over-the-counter sale, and in this case, the protruding hinge portion becomes an obstacle.

Further, since the cap body and the upper lid are integrally formed, there are the following problems.

The die structure of the hinge portion and the elastic connection belt portion becomes complicated, and dimension design becomes difficult.

The display effect is inferior because the colors of the cap body and top lid cannot be changed.

The material cannot be changed, and since the cap body and the upper lid of this type of cap are molded of relatively hard polypropylene that is excellent in bending resistance, it is difficult to improve the accuracy of the outlet sealing.

Therefore, as a solution to the above problems,
The one described in Japanese Utility Model Publication No. 62-159354 is proposed.

In this publication, a cap is composed of three parts, a cap body, a decorative plate member, and an upper lid, and a hinge is formed on the upper cover and a shaft having a small protrusion provided on the decorative plate member. It is shown that it is composed of elastic plates sandwiched from both sides.

However, this conventional technique also has the following problems.

1) Since the decorative plate member is indispensable in terms of the formability of the shaft having the small ridges, there are three parts constituting the cap.
It becomes a part.

2) Due to the difference in diameter between the maximum diameter and the shaft diameter due to the small ridges formed on the shaft, a restoring force that elastically inverts the upper lid when opening and closing is generated, so even if an attempt is made to obtain a large restoring force There is a limit to the setting of, and it is not possible to obtain a good sense of opening and closing when opening and closing the lid.

3) The small ridges formed on the shaft are easily worn at the time of opening and closing due to the elastic plate that holds the shaft. Therefore, the initial state of the restoring force is not maintained, and the feeling of opening and closing decreases as the opening and closing of the upper lid is repeated.

The present invention has been made by paying attention to the above-mentioned problems, and in the hinge cap with the lid reversing mechanism that gives a feeling of opening and closing when opening and closing the lid, the problems of the snap type hinged cap are solved at once. However, it is an object to reduce the number of parts, to provide a large feeling of opening and closing when opening and closing the upper lid, and to maintain that feeling of feeling for a long time.

(Means for Solving the Problems) In order to solve the above-mentioned problems, in the hinge cap with an upper lid reversing mechanism of the present invention, the upper lid is connected to the cap body by an elastically reversible hinge, and the opening angle of the upper lid is 90 ° or more. A hinge cap with an upper lid reversing mechanism set to a large angle, wherein the cap body has an outer tubular portion having a locking portion inside which fits into the neck of the container mouth, and an inner tubular portion closely contacting the inside of the container mouth. And a zenith portion having an extraction hole is provided, the upper lid is provided with a nozzle for opening and closing the extraction hole, the hinge is a cutout portion provided at an end of the zenith portion of the cap body, A protruding part of a semi-cylindrical shape which is erected face-to-face to the left and right through the cutout part and has an arcuate upper portion when viewed from the cutout part, and a part of the center of the projected part that crosses over the cutout part. To have the center in the lower position A shaft portion having a circular cross section provided, and a hook-shaped engaging portion that is rotatably engaged with the shaft portion is formed at the tip portion thereof, and extends downward, and an elastic hook plate provided on the upper lid, The elastic hook plate has rotating protrusions provided on both sides of the base so as to come into contact with the protruding portion, and has a shorter diameter from the central axis of the shaft portion to the side surface in the front-rear direction of the protruding portion. Also, the means is characterized in that the major axis from the central axis to the arc-shaped top of the protrusion is long.

(Operation) When opening and closing the top lid of the cap, first open the top lid from the closed state, and the pivoting protrusion of the top lid around the shaft part moves on the protruding part of the cap body in the front minor direction. From the side surface of the upper lid to the arc-shaped top in the major axis direction, the rotary press contact movement is performed, and at the same time, the elastic hook plate of the upper lid gradually deforms. Then, when the rotating protrusion gets over the arc-shaped top of the protrusion, the pressure contact of the rotating protrusion is released, and the elastic hook plate is restored. Due to this restoring force, the rotating protrusion rotates further from the arc-shaped top of the protrusion to the rear (opposite side) short-diameter direction position, and the upper lid is reversed and held backward, and the upper lid opens at a large angle of 90 ° or more. It is opened at an angle.

When the upper lid is rotated upward from the open state of the upper lid, the upper lid is moved forward by the restoring force of the elastic hook plate when the rotating protrusion over the arc-shaped top of the protrusion is centered on the shaft portion. It is turned over and closed.

First Embodiment First, the configuration will be described.

FIG. 1 is a longitudinal sectional view of a hinge cap with an upper lid inversion mechanism according to a first embodiment of the present invention, and FIG. 2 is a plan view of the hinge cap.

In the drawing, reference numeral 1 denotes a cap body, which is made of a resin such as polypropylene or polyethylene, and has an outer cylinder portion 12 having a locking portion 11 inside which fits into a container neck 31 and a container. Inner cylinder part for fitting into the mouth 32 and sealing
13 is suspended from a zenith portion 15 having an exit hole 14.

A cutting portion 16 is provided behind the zenith portion 15
Vertically extending chevron-shaped protrusions 17 and 17 'in the shape of a mountain when viewed from the cut-off portion 16 side are erected on the left and right zenith faces via 16 and further the protrusions 17 and 17'. Shaft so that it crosses above the excision part 16 from a position slightly lower than the center of
18 are erected.

3 shows an exploded perspective view of the hinge cap, and FIG. 4 shows a cross section taken along the line BB in FIG. 3. In FIG. 4, the protruding portion 17, from the central axis of the shaft portion 18, 17 'is formed such that the major axis b to the top is longer than the minor axis a to the side surface in the front-rear direction.

In FIG. 2, 2 indicates an upper lid. The upper lid 2 is formed of a highly rigid resin such as polypropylene, and a nozzle 21 for opening and closing the take-out hole 14 is vertically provided inside the top surface as shown in FIGS. At the rear portion of the upper lid 2, as shown in FIG. 3, an elastic hook plate 22 having a downward hook-shaped engaging portion 221 which is rotatably engaged with the shaft portion 18 of the cap body 1 is formed. The elastic hook plate is, as shown in FIG. 2, an outer cylinder portion of the cap body 1.
It is formed so as not to protrude from 12. Further, on both sides of the base of the elastic hook plate 22, as shown in FIGS. 3 and 5, rotary protrusions 23, 23 'that come into contact with the protrusions 17, 17' are provided.

Incidentally, FIGS. 6 to 8 are enlarged views of the portion A in FIG. 1, but in FIG. 6 to FIG.
Are provided so as to facilitate the molding of the shaft portion 18 and not hinder the rotation of the elastic hook plate 22.

 Next, the operation will be described.

When opening the upper lid 2, from FIG. 6 to FIG.
When the upper lid 2 is rotated upward, the upper lid 2 is centered around the shaft portion 18.
The rotary hooks 23, 23 'of the upper cover 2 are elastically pressure-contacted on the protrusions 17, 17' of the cap body 1 from the front short side to the top in the long direction, so that the elastic hooks of the upper lid 2 are moved. The plate 22 gradually deforms.

Then, from FIG. 7 to FIG.
When 3'overrides the tops of the protrusions 17 and 17 ', the rotating protrusions 23 and 2
The pressure contact of 3'is released and the elastic hook plate 22 tries to restore.

Due to this restoring force, as shown in FIG.
The upper lid 2 is inverted and held in the open state by the rotational movement of the 3'from the top of the protrusions 17 and 17 'to the rear short position.

When closing the top cover, contrary to the above,
The procedure is carried out through the figure to FIG. That is, when the upper lid 2 is rotated upward, the rotation protrusion 2 is rotated about the shaft portion 18.
When 3,23 'gets over the tops of the protrusions 17, 17', the pressure contact is released and the restoring force of the elastic hook plate 22 causes the upper lid 2 to be inverted and closed. At this time, the nozzle 21 of the upper lid 2 is fitted into the extraction hole 14 of the cap body 1 shown in FIG.
Is sealed.

In addition, when superior sealing accuracy is required depending on the contents, for example, when the material of the upper lid 2 is molded with polypropylene resin having high rigidity, the material of the cap body 1 is made of polyethylene resin softer than pyripropylene resin, for example, polyethylene resin. Molding improves the fitting property of the extraction hole 14 and the nozzle 21 and improves the sealing accuracy.

As described above, in the hinge cap with the top lid reversing mechanism of the first embodiment, the effects listed below can be obtained together.

The problems with snap-type hinged caps are solved at once.

That is, since the protrusion of the hinge is eliminated from the side surface of the outer cylinder, there is no risk of injuring a finger at the hinge portion and safety is improved,
It can be inserted without any trouble even when it is placed upside down in the tray and sold at the store. Further, since the cap body 1 and the upper lid 2 are separately molded, the mold structure is simple and the dimensional design is easy, and the colors of the cap body 1 and the upper lid 2 can be changed, and the display effect is excellent. Further, by changing the materials of the cap body 1 and the upper lid 2, the durability of the hinge and the sealing property of the outlet can be improved.

A shaft portion 18 having a circular cross section is integrally molded with the cap body 1, and a hinge cap with an upper lid inversion mechanism is attached to the cap body 1.
Since it is composed of two parts, the upper lid 2 and the
The number of parts can be reduced compared to a cap made of parts.

 As a result, there is a cost advantage.

It is possible to give a great feeling of opening and closing when opening and closing the upper lid, and to maintain that feeling of feeling for a long time.

That is, the restoring force generated by the hinge is the shaft portion shown in FIG.
It is proportional to the diameter difference between the minor axis a from the central axis of 18 to the front and rear side surfaces of the protrusions 17 and 17 'and the major axis b to the apex. In this way, the diameter difference is not set in the shaft portion as in the prior art, but the diameter difference is set by the protrusions 17 and 17 'provided on the shaft support portion, so that the diameter difference can be set freely. The degree is greatly expanded.

In addition, when the top cover 2 is opened and closed, the projecting portion with a large radius of curvature is
Since the rotating protrusions 23, 23 'are in contact with the 17, 17', the opening and closing moderation initially set is maintained even after repeated opening and closing even after a large number of times of opening and closing.

That is, in the case of the prior art, since the shaft portion has a small ridge portion having a very small radius of curvature, when a large number of times of opening and closing are performed, the worn portion is concentrated on this small ridge portion. , The cross-sectional shape of the shank approaches a circular cross section at an early stage.

Second Embodiment Next, a second embodiment shown in FIG. 9 will be described.

In the second embodiment, an outer peripheral cylindrical portion is further provided outside the outer cylindrical portion 12.
The case where 19 is provided is shown.

In this case, the cutting portion 16, the semicylindrical projections 17, 17 'and the shaft portion 18 shown in the first embodiment are the outer cylinder portion 12 and the outer peripheral cylinder portion 1
An elastic hook plate 22 provided between the 9 and formed on the upper lid 2
The rotating protrusions 23, 23 'are also provided at the corresponding positions.

Since the other configurations, operations and effects are the same as those of the first embodiment, the corresponding parts are designated by the same reference numerals and the description thereof will be omitted.

Third Embodiment Next, a third embodiment shown in FIG. 10 will be described.

The third embodiment is an elastic hook plate formed on the upper lid 2.
Slits 24, 24 'are provided at the base of 22, and these slits 24, 2'
By changing the length of 4 ', it is possible to adjust the restoring force, which is the force for inverting the upper lid 2, relatively easily.
Slits 24,2 without making design changes such as 17,17 '
By adjusting the length of 4 ', it is possible to adjust the moderation of the upper lid 2.

Since the other configurations, operations and effects are the same as those of the first embodiment, the corresponding parts are designated by the same reference numerals and the description thereof will be omitted.

The embodiment has been described above with reference to the drawings, but the specific configuration is not limited to this embodiment, and even if there is a design change or the like within a range not departing from the gist of the invention, the invention is included in the invention. .

For example, in the first to third embodiments, the upper lid 2
Kamaboko-shaped ridge 1 so that the opening angle is approximately 180 °
Although the shape of 7, 17 'is formed in a semi-circular shape, the opening angle of the upper lid 2 may be arbitrarily changed by changing the shape of the projecting portions 17, 17' if necessary.

(Effect of the Invention) As described above, in the present invention, the upper lid inversion mechanism in which the upper lid is connected to the cap body by the elastically reversible hinge and the opening angle of the upper lid is set to a large angle of 90 ° or more. In the attached hinge cap, since it has the structure described in the claims, when the upper lid is opened and closed, the rotating protrusion of the upper lid is pressed and moved so as to slide on the arc-shaped projecting surface of the cap body. There is no concern that the protruding part and the rotating protrusion will be scraped by the pressure contact force, and it was set first even after opening and closing a number of times, that is, the rotating protrusion of the upper lid moved by pressure contact, and the arc-shaped top part of the protruding part. The feeling of opening and closing when riding over the car is maintained without deterioration, and the opening and closing movement of the upper lid is smooth and easy to use.

In addition, since the hinge does not protrude from the side of the outer cylinder, there is no scratching of the fingers at the hinge and safety is improved, and it can be inserted without trouble even when it is upside down in the tray and sold at the store. is there.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a hinge cap with an upper lid inversion mechanism according to a first embodiment of the present invention, FIG. 2 is a plan view of a first embodiment elbow cap, and FIG. 3 is an exploded perspective view of the first embodiment elbow cap. FIGS. 4 and 5 are detailed cross-sectional views of the main part of the cap body taken along the line BB in FIG. 3, FIG. 5 is a perspective view showing the opened state of the cap, and FIGS. 6 to 8 are movements of the hinge which is the main part. FIG. 9 is a detailed sectional view showing a state, FIG. 9 is a vertical sectional view showing a hinge cap with an upper lid reversing mechanism of a second embodiment of the present invention, and FIG. 10 is a perspective view showing a hinge cap with an upper lid reversing mechanism of a third embodiment of the present invention. Figure, No. 11
Figure is a side view showing the closed state of a conventional snap-type hinged cap, Figure 12 is a perspective view showing the open state of a conventional snap-type hinged cap, and Figure 13 is a tube container set in a tray. It is a perspective view of the state which is doing. 1 ... Cap main body 2 ... Top cover 12 ... Outer cylinder part 13 ... Inner cylinder part 14 ... Extraction hole 15 ... Zenith part 16 ... Excision part 17 ... Projection part 18 ... Shaft part 21 ... Nozzle 22 ... Elastic hook plate 23 ... Rotation Mouth 221… Key-shaped engaging part 31… Container mouth neck 32… Inside the container mouth

Claims (1)

[Scope of utility model registration request] 1. A hinge cap with an upper lid reversing mechanism in which an upper lid is connected to a cap body by a hinge capable of elastic reversal, and an opening angle of the upper lid is set to a large angle of 90 ° or more, wherein the cap body has a container. An outer cylinder part having a locking part fitted to the mouth and neck part on the inside, an inner cylinder part in close contact with the inside of the container mouth, and a zenith part having an extraction hole are provided, and the extraction hole is provided on the upper lid. A nozzle for opening and closing is provided, and the hinge is provided with a cutout portion provided at an end of the zenith portion of the cap main body, and is erected face-to-face on the left and right through the cutout portion. An arcuate, semi-cylindrical protrusion, a shaft having a circular cross section that is installed so as to traverse above the excised part and have a center slightly below the center of the protrusion, and to the shaft. A hook-shaped engaging portion that pivotally engages is formed on the tip of the engaging portion. And the elastic hook plate extending downward and provided on the upper lid, and the pivoting protrusions provided on both sides of the base portion of the elastic hook plate so as to abut the projecting portion, An upper lid characterized in that the major axis from the central axis to the arcuate top of the protrusion is longer than the minor diameter from the central axis to the side surface in the front-rear direction of the protrusion. Hinge cap with inversion mechanism.