JPH07101458A - Opening mechanism for lid, opening mechanism for lid of integrally molded case, one-push opening type case, manufacture of the integrally molded case and manufacture of the one-push opening type case - Google Patents

Abstract

PURPOSE:To open a lid of various kinds of cases or the like at a desired angle with a single hand. CONSTITUTION:In a case integrally molded of a synthetic resin so that a body 11 and a lid 12 are opened/closed at a hinge 13, a slit which can be pressed by a finger is provided at an optional part of the hinge 13 to form two long cut holes 18 in a direction for opening/closing the lid making a press operating part 5, while the long cut hole 18 crosses a hinge groove 4 of the hinge 13 and one of its ends 6 reaches at least the body 11 or the lid 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to enable the lids of various cases with lids to be opened at a desired angle with one hand.

Further, the lids of various cases with lids having engaging hooks on the opposite side of the hinge can be opened at a desired angle while the hooks are disengaged with one hand.

In addition to the case for glasses, the compact for makeup, etc., the present invention also integrally molds a floppy disk case, a cassette tape case, etc. with a synthetic resin.
The lid can be opened at a desired angle with one hand.

[0004]

2. Description of the Related Art Conventionally, there are various kinds of equipments and cases in which a main body and a lid are integrally molded with a synthetic resin material such as polyethylene. In addition, there is also one in which a male and female hook that can be engaged with the lid body is provided for closing the lid body.

In order to open the device or case of this kind by holding it in one hand, the hook portion on the body side of the container is strongly pressed by the thumb or the like so as to be distorted from the outside, and the hook on the lid side is removed. The method has been adopted.

[0006]

However, in the conventional device of this kind, the finger cannot be opened without a strong force on the finger, and these opening / closing mechanisms are used for eyeglass cases, writing instrument cases, toys, food containers, etc. It has been adopted by many consumers, and it can be said that it is unreasonable for the elderly, women, young people, young children, etc. on the consumer side.

[0007] Moreover, the engagement with the hook on the lid side may be released by strongly pushing the hook on the main body side.
In order to open the lid widely, it was necessary to open it with both hands in the end, or to provide a spring mechanism or the like on the hinge part or the like (for example, Japanese Utility Model Laid-Open No. 55-151210, Japanese Utility Model Publication 4-3012).
See Publication No. 0. ).

In addition, in a compact case for cosmetics,
There are also cases in which the case is held in one hand and lightly pressed with a finger to open and close (see, for example, Japanese Utility Model Laid-Open No. 61-113243, Japanese Utility Model Publication No. 4-3974, Japanese Utility Model Publication No. 4-40566), but this type of case The opening / closing mechanism requires hooks, hook opening parts, hinge pin parts, spring parts, etc., as well as dies, processing equipment, processing technology, and processing steps, which inevitably leads to high manufacturing costs. However, the fields of application were limited, such as targeting high-end products as applications.

Further, in terms of design, the hook portion, the hook opening mechanism portion, and the hinge portion have a space therefor,
Unevenness, a rotating shaft (pin) for rotating the lid, pin holes, etc. were required, and it was difficult to expect a neat flat, sharp design and extremely thin case.

There is also a cap of a container for bath agents, hair washes, etc., which has slits similar to those of the present invention (for example, see Japanese Utility Model Laid-Open No. 2-45266). But,
These are functions, structures, purposes, operating methods, and
The effect is completely different. The portion separated from the hinge by the slit long hole serves as a spring member to assist the lid opening operation when the lid is opened, and this portion projects to the outside of the cap when the lid is opened. That is, it can be seen that this is completely different from the present invention in which the pressing operation portion is pushed inward.

[0011]

[Means for Solving the Problems] That is, in order to open the lid with one hand from the state in which the case is closed, the engagement between the lid and the main body can be released with one hand, and the lid can be opened with a desired angle with one hand. It is necessary to

In order to easily manufacture a case having such a function, it is desirable to integrally form a case having such a locking structure and an opening mechanism with a synthetic resin.

Therefore, in the lid opening mechanism according to the present invention, in the structure in which the main body and the lid are openably and closably connected to each other by the hinge, the end portion is connected to the main body and the lid separately from the hinge, and the finger is used. A push operation part that can be pressed is provided, and the push operation part has a deformable V-shaped or curved shape so that the distance between both ends of the push operation part is minimized when the lid is closed. By pushing with, the distance between both ends is increased and the lid is opened (Claim 1).

Alternatively, in a case in which the main body and the lid are opened and closed by a hinge, two slit slots are formed in an arbitrary portion of the hinge so that they can be pressed by a finger, and a pressing operation is performed in the opening and closing direction of the lid. The cut groove is formed so as to cross the hinge groove of the hinge, and one end of the cut groove reaches at least the main body or the lid (claim 10).

The lid opening mechanism of the integrally molded case according to the present invention (claim 15) is a case in which the main body part and the lid part are integrally molded with synthetic resin so that the hinge part opens and closes, and an arbitrary part of the hinge part. Two slit slots are formed in the opening and closing direction of the lid with a space that can be pressed by a finger to form a pressing operation portion, and the slit groove crosses the hinge groove of the hinge portion, and One is formed so as to reach at least the main body portion or the lid portion.

On the other hand, the method of manufacturing an integrally molded case according to the present invention is a method of manufacturing a case integrally molded of synthetic resin so that the main body and the lid are opened and closed by the hinge, and the main body and the lid have a hinge groove. After integrally molding so that it is connected by the hinge part that has, two slit long holes are formed in any part of the hinge part across the hinge groove of the hinge part in the opening and closing direction of the lid,
One of the ends is provided with a space so as to reach at least the main body or the lid (claim 25).

Alternatively, in the method of manufacturing a case in which the main body and the lid are integrally formed of synthetic resin so as to be opened and closed by the hinge, the main body and the lid are integrally formed so as to be connected by the hinge having the hinge groove. In this case, two slit slots are formed in an arbitrary part of the hinge part across the hinge groove of the hinge part in the opening / closing direction of the lid, and one of the ends is formed so as to reach at least the main body part or the lid part. Thing (claim 2
6).

Further, in the one-push open type case according to the present invention, the main body and the lid are connected by a hinge so as to be openable and closable, and the male and female hooks or the main body and the lid provided on the main body and the lid opposite to the hinge. In the case where the closed state is maintained by engaging the engaging part provided on the side surface of the case, its end is connected to the main body and lid separately from the hinge, and can be pressed with fingers. A pressing operation section is provided, and the pressing operation section has a deformable cross-sectional V-shape or curved shape so that the distance between both ends of the pressing operation section is minimized when the lid is closed.
Male and female hooks are formed on the main body and the lid so that the male and female hooks of the main body and the lid are disengaged by pushing the hook portion side of the main body (claim 27), or the main body and the lid are separated from each other. An engaging portion between the main body and the lid is formed so that the engagement between the main body and the lid is released by being slightly displaced in the horizontal direction.
1) Then, the lid is opened by pushing the pushing operation portion with a finger.

Alternatively, the main body portion and the lid portion are opened and closed by the hinge portion, and the male and female hooks formed on the main body portion and the lid portion opposite to the hinge portion or the engaging portions formed on the side surface of the main body portion and the lid portion are engaged. In the case integrally molded with synthetic resin so that the closed state is maintained by mating, two slit slots are provided in the hinge part at a space that can be pressed with a finger, and the slits are formed in the opening / closing direction of the lid. To form a pressing operation part,
The cut groove is formed so as to cross the hinge groove of the hinge portion, and one of its end portions is formed so as to reach at least the main body portion or the lid portion, and the hook portion side of the main body portion is pushed in to cut the main body portion and the lid portion. The male and female hooks are formed on the main body and the lid so that the male and female hooks are disengaged (claim 32), or the lid is slightly pushed horizontally to release the engagement between the main body and the lid. As described above, an engaging portion is formed on the main body portion and the lid portion (claim 33).

The method for manufacturing a one-push open type case according to the present invention (claim 34) is such that when the main body and the lid body are hinged and the main body portion and the lid portion are connected to each other by the hinge portion, the case is molded in an expanded state. , The hinge portion is formed with two slit long holes to form the pressing operation portion, and the portion to be the hook operation portion of the main body portion is separated from the rising portion of the outer peripheral portion, and the bottom portion of the main body portion is provided with the hook operation groove. And hook stoppers are formed at both ends of the hook operating portion so as to project more than the side wall end portions of the outer peripheral portion.

[0021]

[Function] The case is held in the hand, and the pressing operation section is pushed in. Then, the main body and the lid are rotatably coupled to each other at the hinge, and when the pressing operation portion is pushed in, the ends of the pressing operation portion tend to become far apart from each other. Therefore, the lid body is forcibly opened from the main body as the end portion of the pressing operation portion moves.

Further, when the case is held by the hand so that the hook side and the hinge side are sandwiched and the hook portion on the main body side is pushed and the pushing operation portion is pushed at the same time, the engagement between the lid body and the main body is released, and at the same time, the lid is released. Is opened by the pressing operation unit.

Alternatively, in the case where the hinge portion and the like are flexible, if the case is held in the hand with the hook side and the hinge side sandwiched and the pushing operation portion is pushed, the lid body is also moved in the pushed direction at the same time. , The hook portion is automatically disengaged. Then, when the pressing operation section is further pressed, the lid body opens at a wide angle by the pressing operation section.

Further, in the case where the main body and the side surface of the lid body are provided with the engaging portions, the side opposite to the hinge side is sandwiched and the pushing operation portion is pushed in the hand, and the lid body is also pushed in the same direction. Then, it moves slightly horizontally to automatically disengage the engaging portion. Then, when the pressing operation section is further pressed, the lid body opens at a wide angle by the pressing operation section.

[0025]

EXAMPLES Next, a lid opening mechanism according to the present invention, a lid opening mechanism for an integrally molded case, a one-push opening type case,
Embodiments of a method for manufacturing an integrally molded case and a method for manufacturing a one-push open type case will be described with reference to the drawings.

<First Embodiment> First, the lid opening mechanism will be described with reference to the spectacle case shown in FIGS. Reference numeral 1 is a main body of a spectacle case, and 2 is a lid, which is connected by a hinge 3 so as to be openable and closable. Reference numeral 4 denotes a hinge groove provided on the inner side of the hinge 3. In the illustrated example, the two hinge grooves 4 allow the hinge 3 to rotate.

Reference numeral 5 denotes a pressing operation portion provided in the central portion of the hinge 3 separately from the hinge 3, and its end portions 6 are connected to the main body 1 and the lid body 2, respectively. The pressing operation portion 5 has a width such that it can be pressed by a finger, and its cross section has a curved shape similar to that of the hinge 3. The hinge groove 4 is provided inside the pressing operation portion 5.
A bent groove 7 similar to that is formed. A bent groove 7 is also formed in the end portion 6.

The end portion 6 of the pushing operation portion 5 is designed so that the distance between both ends of the lid portion 2 is minimized when the lid body 2 is closed. The pressing operation portion 5 does not necessarily have to have the same shape as the hinge 3, but may have, for example, a dogleg shape. Also,
The bent groove 7 does not necessarily have to be provided at the same position as the hinge groove 4, and the number thereof may be one or may be plural. In order to facilitate the pressing operation, the angle of the pressing operation portion 5 is preferably wider than 90 degrees (obtuse angle) when viewed from the inside of the case.

Reference numeral 8 is a male hook formed on the main body 1, and 9
Is a female hook formed on the lid body 2, and the male hook 8 and the female hook 9 are engaged with each other when the lid body 2 is closed.

The main body 1, the lid 2, the hinges 3, the pressing operation portion 5, the male hooks 8, the female hooks 9 and the like may be integrally formed of synthetic resin, but they are not necessarily integrally formed, and are made of a material. Depending on the manufacturing process, necessary parts may be welded, fused, fitted and killed, screwed, stuck, or the like. Further, at least the pressing operation portion 5 is made of a deformable material. For example, PP materials, nylon materials, elastic soft resins and similar materials such as plate materials and long fiber papers,
Materials with high bending durability and elasticity are effective.

Next, the opening operation of the lid body 2 of this embodiment will be described. First, when the lid body 2 is closed with the main body 1 (state shown in FIGS. 6 and 7), the pressing operation portion 5 has the same shape as the hinge 3.

In this state, when the pushing operation portion 5 is pushed inward of the case, since the bending groove 7 is formed in the pushing operation portion 5, the pushing operation portion 5 is bent at this portion. To transform. Then, due to this deformation, the distance between the end portion 6 of the pressing operation portion 5 on the main body 1 side and the end portion 6 on the lid body 2 side increases. Then, the end 6 on the lid 2 side moves upward in the drawing.

When the end portion 6 on the lid body 2 side moves upward in the drawing, the lid body 2 itself also rotates on the hinge 3, and the lid body 2 is also opened as shown in FIG. It should be noted that the opening angle of the lid body 2 can be adjusted by adjusting the pressing amount of the pressing operation portion 5.

When a total of four bending grooves 7 are provided at the top of the lid 2, the bottom of the main body 1 and the hinge 3 part, once the folding groove 7 is opened 90 degrees, the pressing operation portion 5 is further deepened. If you push it inward, you can spread it from 90 degrees to 160 degrees while holding it in one hand.

<Embodiment 2> Next, a one-push opening type case will be described based on a two-piece cassette tape case shown in FIGS. In addition to the cassette tape as the storage item, the CD, DCC,
It can also be used for cassettes such as MDs.

Reference numeral 10 denotes a two-piece cassette tape case body integrally formed of synthetic resin so that the two thin cases 11 and 12 are rotatably connected by a hinge portion 13. Reference numeral 14 is a storage portion for the thin cases 11 and 12, and the storage portion 14 is formed by an outer peripheral portion 15 and a bottom surface portion 16. Storage 1
The reference numeral 4 is substantially the same shape as the cassette tape, and the outer peripheral portion 15 has substantially the same height (thickness) as the cassette tape. Reference numeral 17 is a locking portion for locking the cassette tape, which is arranged on the outer peripheral portion 15 so as to lock the protrusion on the side surface of the cassette tape. It should be noted that, for convenience of explanation, the thin case 1
1 is a main body 11, and the thin case 12 is a lid 12.

In the hinge portion 13, hinge grooves 4 are formed inside the case at the connecting portion with the main body portion 11 and the connecting portion with the lid portion 12, respectively. Then, the hinge groove 4 of the hinge portion 13
When the main body portion 11 and the lid portion 12 are rotated so as to be bent at 90 degrees, the main body portion 11 and the lid portion 12 are surrounded by the bottom surface portion 16, the outer peripheral portion 15 and the hinge portion 13 to form a box shape.

Numeral 5 has two slits 18 formed in the central portion of the hinge portion 13 so as to be pressed by a finger in the opening / closing direction of the lid portion 12.
Is a pressing operation portion formed so as to cross the hinge groove 4 and one end 6 thereof reaches the lid 12. The other end 6 extends until it reaches the hinge groove 4 on the main body 11 side. Then, since the pressing portion 5 is formed by separating the hinge portion 3 with the slits 18, the bending groove 7 is formed at the same position as the hinge groove 4 in the pressing operation portion.

The slit 18 may be formed by post-processing after molding the case, or the slit 18 may be integrally formed during molding of the case. Further, the bent groove 7 does not necessarily have to be located at the same position as the hinge groove 4, and an appropriate number thereof may be provided.

Reference numeral 8 is a male hook formed on the main body portion 11, 9 is a female hook formed on the lid portion 12, and the male hook 8 and the female hook 9 are engaged when the lid portion 22 is closed. . The male hook 8 and the female hook 9 are also integrally formed. Further, as shown in the drawing, if both the male hook 8 and the female hook are formed so as to face the inside of the case, there is no protrusion of the hook on the outside of the case, and the outer shape can be made beautiful.

Next, the one-push opening operation of this embodiment will be described. First, when the lid 12 is closed with the main body 11 (the state shown in FIGS. 14 and 16), the male hook 8 of the main body 11 and the female hook of the lid 12 are engaged, and The operation unit 5 has the same shape as the hinge 3.

In this state, the male hook 8 side of the main body 11 is held from below the main body 11 with the thumb so that the pressing operation portion 5 is sandwiched between the index finger and the middle finger. When the male hook 8 is pushed inward from both sides, the male hook 8 is pushed inward, so that the female hook 9 of the lid portion 12 is disengaged and the lid portion 12 becomes free. When the pressing operation portion 5 is further pushed in here, since the bending groove 7 is formed in the pressing operation portion 5, the pressing operation portion 5 is bent at this portion and is deformed inside the case. Then, due to this deformation, the distance between the end portion 6 of the pressing operation portion 5 on the main body portion 11 side and the end portion 6 on the lid portion 12 side increases. Then, the end portion 6 on the lid portion 12 side moves upward in the drawing. In addition, actually, these operations are performed by one operation (one push).

When the end portion 6 on the lid portion 12 side moves upward in the drawing, the lid portion 12 itself also rotates at the hinge portion 13, and the lid portion 12 is also opened as shown in FIG. In addition, by adjusting the pressing amount of the pressing operation unit 5,
The opening angle of the lid 12 can be adjusted.

When the case is made of a flexible synthetic resin, the lid portion 12 is pushed by pushing the pushing operation portion 5 without pushing the male hook 8 of the main body portion 11 consciously. By slightly moving to the left in, the engagement of the female hook 9 of the lid portion 12 with the male hook 8 of the main body portion 11 is automatically released. Therefore, in this case, the lid portion 12 can be opened by pushing the pressing operation portion 5. In any case, hold the case in your hand,
The cover of the case can be opened by one-push operation by pressing the pressing operation unit 5 or the like.

Although the above embodiment has been described with respect to the case of integrally molding with synthetic resin, the present invention can be carried out without necessarily integrally molding with synthetic resin, and it is necessary according to the material and the manufacturing process. The components may be welded, fused, fitted and killed, screwed, stuck, or the like.

<Third Embodiment> Next, a modification of the one-push open type case of the second embodiment is shown in FIGS. Basically, the same as in the second embodiment, but the end portions 6 of the two slit elongated holes 18 reach the lid portion 12 and the main body portion 11, respectively, and the bent groove 7 is also formed in the end portion 6. The pressing operation unit 5 has been formed.

The outer peripheral portion 15 has engaging portions 19 respectively.
Are formed, for example, one is a small convex protrusion and the other is a small concave dent. Alternatively, the engaging portions 19 may be convex projections so that the engaging state is maintained in the vertical direction and free in the horizontal direction. Then, when the engaging portion 19 is engaged, the main body portion 11 and the lid portion 12 are slightly displaced in the horizontal direction so that the engaged state of the engaging portion 19 can be easily released.

Next, the one-push opening operation of this embodiment will be described. First, when the lid portion 12 is closed with the main body portion 11, the user holds the main body portion 11 or the lid portion 12 by hand so that an arbitrary side is the upper side.

Then, when the pushing operation portion 5 is pushed inward of the case, the lid portion 12 or the main body portion 11 on the upper side is pushed slightly horizontally to move, and the engaged state of the engaging portion 19 is released. Get burned. When the pressing operation portion 5 is further pushed in here, since the bending groove 7 is formed in the pressing operation portion 5, the pressing operation portion 5 is bent at this portion to be deformed to the inside of the case, and the upper side is formed. The lid 12 or the main body 11 that is open is opened.

When the case is held upside down,
Similarly, the lid portion 12 or the main body portion 11 on the upper side is similarly opened by the one-push opening operation. In the case of this embodiment, the opening operation can be performed without worrying about the upper and lower sides of the case.

<Embodiment 4> Next, a method for manufacturing the integrally molded case of the present invention will be described. In the case of integrally molding with synthetic resin, the main body portion 11, the lid portion 12, the hinge portion 13, the pressing operation portion 5, the male hook 8, the female hook 9 and the like are integrally formed.
Mold at 0 degrees in the unfolded state. In this case, it can be carried out by a usual die and molding technique. Further, by adopting an elastic soft material such as PP material, the durability of the hinge portion 13 and the pressing operation portion 5 is enhanced, and molding processing can be performed even in extremely thin devices and containers.

As a manufacturing method, a molding method such as injection molding, or a punching / pressing processing as a plate material processing can be performed.

As a method of forming the plate material and the hook for the paper container, it is possible to perform fitting and killing including welding and fusing, screwing and interleaving method.

<Embodiment 5> FIGS. 23 and 24 show an example of a spectacle case, which is basically the same as that of Embodiment 1 shown in FIG. 1 to FIG. This is an example in which the body 2 and the hinge 3 are separately manufactured, and assembled by the one in which the pressing operation portion 5 is provided on a part of the hinge.

<Sixth Embodiment> FIGS. 25 to 27 show an example of a two-disk floppy disk case, which is basically the same as that shown in FIGS. 9 to 17 of the second embodiment. The hinge portion 3 is bent substantially at a right angle, and the pressing operation portion 5 is bent at a substantially right angle in the bending groove 7 to enter.

<Embodiment 7> In FIG. 28, the hinge portion 3 of Embodiment 6 is similar to that of Embodiment 3 shown in FIGS. 18 to 22, and both the main body portion 11 and the lid portion 12 can be opened. It is a thing.

<Embodiment 8> FIGS. 29 to 35 show an example of a compact case, showing various examples of hook shapes and arrangement positions. The lid portion 12 can be easily opened by sandwiching the pressing operation portion 5 and the support portion 20 by hand.

<Embodiment 9> FIG. 36 shows an example of a cap used as a lid (cap, cover) for an independent container, which is used by inserting the main body 1 into the mouth of a bottle or the like. is there. When the lid 2 is opened, the container body is grasped and the pressing operation unit 5 is pushed with the index finger or the like, or in the case of a container with a grip or the like, the pressing operation unit 5 is pushed with the thumb.

<Embodiment 10> FIGS. 37 to 40 show an example in which the main body 1, the lid body 2 and the hinge 3 are continuous in a circular or spherical shape.
By sandwiching the support portion 20, the lid body 2 can be opened with one push.

<Embodiment 11> FIGS. 43 to 48 show an example of forming the notched slot 18 of Embodiment 3 and
It shows various examples in which the slit 18 of the book is not parallel. The shape of the cut long hole 18 can be selected as an appropriate shape depending on the operability of the pressing operation portion 5, the strength of the end portion 6 and the like and design requirements.

<Embodiment 12> FIGS. 49 to 54 show a method of manufacturing a one-push open type case of a two-piece floppy disk. The main body portion 11 and the lid portion 12 are formed in a developed state with the hinge portion 13 connected to each other. The manufacturing method may be integral molding with a synthetic resin, or may be a manufacturing method by processing a paper material, an appropriate interleaving paper or a pressing method. In the illustrated example, the main body portion 11 and the lid portion 12 are formed in a state of being opened 180 degrees, but the angle may not necessarily be such.

Further, at the time of molding, two slit long holes 18 are formed so as to form the pressing operation portion 5, and the bent groove 7 is also appropriately formed. The slit 18 and the bent groove 7 may be formed after molding in the expanded state.

Then, at the time of molding, the portion which becomes the hook operating portion 21 of the main body portion 11 is separated from the rising portion of the outer peripheral portion 15, and the bottom portion 16 of the main body portion 11 and the hook operating groove 24.
To be continuous. In addition, stopper ribs 22 are formed on both ends of the hook operating portion 21. In addition, the male hook 8 is attached to the hook operating portion 21 and the lid portion 1
A female hook 9 is formed on 2.

As shown in FIG. 51, the molded product thus formed in the expanded state is bent by the hook operating portion 21 and is raised, and the stopper rib 22 is pushed into the side wall end portion 23 of the outer peripheral portion 15. To If the angle of the hook operation groove 24 is set to about 110 degrees, the hook operation portion 21 can be operated easily and moderately. That is, the hook operating portion 21 can be easily tilted inward and can be prevented from falling too much. The angle of the hook operating groove 24, the size of the stopper rib 22 and the like are appropriately adjusted depending on the forming material and the like.

The hook operating portion 21 is once the stopper rib 2
When 2 is pushed into the inside of the side wall end 23, the stopper rib 22 is blocked by the side wall end 23 and its movement is restricted thereafter, and the stopper rib 22 can be handled in the same manner as an ordinary hook. Then, by engaging the female hook 9 of the lid portion 12 with the male hook 8 of the hook operating portion 21, the appearance of the container is presented. With such a manufacturing method, the elastic hook can be easily manufactured.

When the present case is opened, the push operation portion 5 and the hook operation portion 21 are held by hand, and when the push operation portion 5 is pressed, the hook operation portion 21 is also pushed, and the hook is engaged. Is released, and the lid 12 is opened.

[0067]

As described above, according to the lid opening mechanism of the present invention, in the structure in which the main body and the lid are openably and closably connected by the hinge, the main body and the lid are provided separately from the hinge. A pressing operation part that is connected to the ends and can be pressed with a finger is provided, and the pressing operation part has a deformable cross-section, a U-shape,
It has a curved shape, etc., so that the distance between both ends of the pressing operation part is minimized when the lid is closed, and the lid is opened by pushing the pressing operation part with a finger, or any part of the hinge is pressed with a finger. Two slit long holes are formed in the opening / closing direction of the lid with a possible gap to form a pressing operation portion, and the slit groove crosses the hinge groove of the hinge, and one of the end portions is at least the main body or Since it is formed so as to reach the lid, it can be opened with a small force to the desired angle, and no special precautions are required when opening the lid, so anyone of any age can easily It can be operated.

Further, according to the lid opening mechanism of the integrally molded case according to the present invention, in the case integrally molded of synthetic resin so that the main body and the lid are opened and closed by the hinge, a finger is attached to an arbitrary portion of the hinge. The two slit slots are formed in the opening / closing direction of the lid to provide a pressing operation part,
Since the cut groove is formed so as to cross the hinge groove of the hinge portion and one of the end portions thereof is formed so as to reach at least the main body portion or the lid portion, it is possible to easily manufacture the case having the opening mechanism. It can be applied to various shapes, and its use is extremely wide.

Furthermore, according to the method of manufacturing an integrally molded case according to the present invention, in the method of manufacturing a case integrally molded of synthetic resin so that the main body and the lid are opened and closed by the hinge, the main body and the lid are hinged. After being integrally molded so as to be connected by a hinge part having a groove, two slit long holes are formed in an arbitrary part of the hinge part across the hinge groove of the hinge part in the opening / closing direction of the lid, and one of the end parts is at least the main body. When the main body part and the lid part are integrally formed so as to be connected by a hinge part having a hinge groove, two parts may be provided at any part of the hinge part. The slit long hole crosses the hinge groove of the hinge portion in the opening and closing direction of the lid, and one of its end portions is formed so as to reach at least the main body portion or the lid portion, so that it becomes the pressing operation portion by integral molding To It can form, without increasing the number of manufacturing processes, also can be very cheap manufacturing cost without requiring a new part, can be used in various cases.

On the other hand, according to the one-push open type case according to the present invention, the main body and the lid are connected by the hinge so as to be openable and closable, and the main body opposite to the hinge and the male or female hook or the main body provided on the lid. In a case in which the closed state is maintained by engaging the engaging portion provided on the side surface of the lid body, in the case where the end portion is connected to the main body and the lid body separately from the hinge, and the fingers are used. A pressing operation unit that can be pressed is provided, and the pressing operation unit has a deformable cross-section, a U-shape, a curved shape, etc., so that the distance between both ends of the pressing operation unit is minimized when the lid is closed. The male and female hooks are formed on the main body and the lid so that the male and female hooks of the main body and the lid are released by pushing in the hook part side of the main body, or the main body and the lid are slightly displaced in the horizontal direction. So that the main body and lid are disengaged Since the lid is opened by pressing the pressing operation portion with a finger by forming the engaging portion of the lid and the lid, the conventional method requires at least two operations of removing the hook and then opening the lid. It is possible to open the case from the closed state, which was difficult to perform with one hand, by one push operation with one hand.

Further, while the main body and the lid are opened and closed by the hinge, the male and female hooks formed on the main body and the lid on the side opposite to the hinge or the engaging portion formed on the side surface of the main body and the lid. In the case integrally molded with synthetic resin so that the closed state is maintained by engaging, the two slit slots are opened and closed by opening a slit in any part of the hinge part so that it can be pressed with a finger. Direction to form a pressing operation part,
The cut groove is formed so as to cross the hinge groove of the hinge portion, and one of its end portions is formed so as to reach at least the main body portion or the lid portion, and the hook portion side of the main body portion is pushed in to cut the main body portion and the lid portion. The male and female hooks are formed on the main body and the lid so that the male and female hooks are disengaged (claim 32), or the lid is slightly pushed horizontally to release the engagement between the main body and the lid. Since the engaging portion is formed on the main body portion and the lid portion so that it can be manufactured, the case capable of the above operation can be manufactured by integral molding, and various shapes can be easily manufactured, and cases for various uses can be manufactured. Can be used for

Further, according to the method for manufacturing the one-push open type case according to the present invention, when the main body portion and the lid portion are connected to each other by the hinge portion and molded in the expanded state, two cut lengths are formed in the hinge portion. A hole is formed to form a pressing operation part, and the part that becomes the hook operation part of the main body part is separated from the rising part of the outer peripheral part so that it is continuous with the bottom part of the main part with a hook operation groove. Since the stopper ribs projecting from the side wall end portions of the outer peripheral portion are formed at both ends of, the hook portion that can be opened and closed by the pressing operation can be easily manufactured.

[Brief description of drawings]

FIG. 1 is a front view showing an example in which a lid opening mechanism of an integrally molded case according to the present invention is used in an eyeglass case.

FIG. 2 is a rear view of the spectacle case shown in FIG.

FIG. 3 is a bottom view of the spectacle case shown in FIG. 1 opened 180 degrees.

FIG. 4 is a plan view showing a state where the spectacle case shown in FIG. 1 is opened 180 degrees.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a side view of the spectacle case shown in FIG. 1. FIG.

7 is an enlarged cross-sectional view of a hinge portion of the spectacle case shown in FIG.

8 is an enlarged sectional view showing an opening mechanism of a hinge portion of the spectacle case shown in FIG.

FIG. 9 is a front view showing an example in which the one-push open type case according to the present invention is a cassette case containing two pieces.

FIG. 10 shows the two-case cassette case 180 shown in FIG.
It is a bottom view of the state opened once.

FIG. 11 is a side view of the two-cassette case shown in FIG. 9.

FIG. 12 shows the two-case cassette case 180 shown in FIG.
It is a top view of the state opened once.

13 is a cross-sectional view taken along line CC of FIG.

14 is an enlarged cross-sectional view of an opening mechanism portion of the two-cassette case shown in FIG.

15 is a cross-sectional view taken along the line BB of FIG.

16 is an enlarged cross-sectional view of a hinge portion of the two-piece cassette case shown in FIG.

FIG. 17 is an enlarged cross-sectional view showing an opening mechanism of a hinge portion of the two-case cassette case shown in FIG.

FIG. 18 is a front view showing an example in which the one-push open type case according to the present invention is a cassette case containing two pieces, and both the main body and the lid are one-push open type.

FIG. 19 is a perspective view of the two-case cassette case shown in FIG.
It is a bottom view of the state opened at 0 degree.

20 is a cross-sectional view taken along line DD of FIG.

21 is an enlarged cross-sectional view of an opening mechanism portion of the two-cassette case shown in FIG.

FIG. 22 shows the two-case cassette case shown in FIG.
It is a top view of the state opened 0 degree.

FIG. 23 is a perspective view showing another example in which the lid opening mechanism of the integrally molded case according to the present invention is used in an eyeglass case.

24 is a perspective view of a hinge portion of the spectacle case shown in FIG.

FIG. 25 is a perspective view showing an example in which the lid opening mechanism of the integrally molded case according to the present invention is used in a two-piece floppy disk case.

FIG. 26 is a perspective view of a hinge and a pressing operation portion of the two-piece floppy disk case shown in FIG. 25.

27 is a perspective view of the two-piece floppy disk case shown in FIG. 25 in a state in which the hinge and the pressing operation unit are flat.

28 is a perspective view showing another example of the hinge and the pressing operation portion of the two-piece floppy disk case shown in FIG. 25.

FIG. 29 is a perspective view showing an example in which the lid opening mechanism according to the present invention is used in a compact case.

FIG. 30 is a perspective view of the compact case of FIG. 29 seen from the opposite direction.

FIG. 31 is a perspective view showing another example in which the lid opening mechanism according to the present invention is used in a compact case.

32 is a perspective view of the compact case of FIG. 31 seen from the opposite direction.

FIG. 33 is a perspective view showing another example in which the lid opening mechanism according to the present invention is used in a compact case.

FIG. 34 is a perspective view of the compact case of FIG. 33 seen from the opposite direction.

FIG. 35 is a perspective view showing an opened state of the compact case shown in FIG. 33.

FIG. 36 is a perspective view showing an example in which the lid opening mechanism according to the present invention is used for a cap.

FIG. 37 is a perspective view showing an example in which the one-push open type case according to the present invention is used as a film case.

38 is a perspective view of a film used in the film case shown in FIG. 37. FIG.

FIG. 39 is a front view showing an example in which the lid opening mechanism according to the present invention is used in a jewelry case.

40 is a cross-sectional view taken along the line EE of the jewelry case of FIG. 39.

FIG. 41 is an E- view of the jewelry case shown in FIG. 39 with the lid open.
It is an E line sectional view.

42 is a perspective view of the jewelry case of FIG. 39 with the lid open.

FIG. 43 is a front view showing an example in which the one-push open type case according to the present invention is a cassette case containing two pieces, both the main body and the lid are one-push open type, and the cut slots are not parallel.

FIG. 44 shows the two-case cassette case shown in FIG.
It is a bottom view of the state opened at 0 degree.

FIG. 45 is a front view showing another example in which the one-push open type case shown in FIG. 43 is a cassette case containing two pieces, both the main body and the lid are one-push open type, and the cut slots are not parallel.

FIG. 46 shows the two-case cassette case shown in FIG.
It is a bottom view of the state opened at 0 degree.

FIG. 47 is a front view showing another example in which the one-push opening type case shown in FIG. 43 is a cassette case containing two pieces, both the main body and the lid are one-push opening type, and the cut slots are not parallel.

FIG. 48 is a perspective view of the two-cassette case shown in FIG.
It is a bottom view of the state opened at 0 degree.

FIG. 49 is a plan view showing a method for manufacturing a two-piece floppy disk case by the method for manufacturing a one-push open type case according to the present invention. .

50 is a bottom view showing a method of manufacturing a two-disk floppy disk case by the method of manufacturing the one-push open type case of FIG. 49. FIG. .

51 is an enlarged side view showing an assembling method of the hook operating part of the method of manufacturing the two-piece floppy disk case by the method of manufacturing the one-push open type case of FIG. 49. FIG.

52 is a perspective view showing an assembled state of a two-piece floppy disk case by the method of manufacturing the one-push open type case of FIG. 49. FIG.

53 is an enlarged side view of the hook operating part when the two-piece floppy disk case is assembled by the method of manufacturing the one-push open type case of FIG. 49. FIG.

FIG. 54 is an enlarged side view of the state in which the hook operation portion is pushed when the two-piece floppy disk case is assembled by the method of manufacturing the one-push open type case of FIG. 49.

[Explanation of symbols]

 1 Main Body 2 Lid Body 3 Hinge 4 Hinge Groove 5 Pressing Operation Section 6 End 7 Bending Groove 8 Male Hook 9 Female Hook 10 Cassette Tape Case Main Body for Two 11 Body Part 12 Lid Part 13 Hinge Part 14 Storage Part 15 Outer Part 16 Bottom Part 17 Engagement Part 18 Notch Slot 19 Engagement Part 20 Support Part 21 Hook Operation Part 22 Stopper Rib 23 Side Wall End Part 24 Hook Operation Groove

Claims (36)

[Claims] 1. In a structure in which a main body and a lid are openably and closably connected to each other by a hinge, a main body and a lid are separately provided with a pressing operation portion whose ends are connected to each other and can be pressed by a finger.
The pressing operation part has a deformable shape so that the distance between both ends of the pressing operation part is minimized when the lid is closed, and the lid is opened by pushing the pressing operation part with a finger. A mechanism to open the lid. 2. The lid opening mechanism according to claim 1, wherein the pressing operation portion has a V-shaped cross section. 3. The lid opening mechanism according to claim 1, wherein the pressing operation portion has a U-shaped cross section. 4. The lid opening mechanism according to claim 1, wherein the pressing operation portion has a curved surface cross section. 5. The lid opening mechanism according to claim 1, wherein the pressing operation portion is formed of a material having elasticity. 6. The lid opening mechanism according to claim 1, wherein the pressing operation portion is formed by processing a paper material. 7. The lid opening mechanism according to claim 1, wherein the pressing operation portion, the hinge, the main body and the lid body are integrally formed. 8. The lid opening mechanism according to claim 1, wherein the pressing operation portion is formed by cutting a part of the hinge after the main body and the lid are connected by the hinge. 9. The lid opening mechanism according to claim 1, wherein the pressing operation section is arranged after the main body and the lid are connected by a hinge. 10. In a case in which a main body and a lid are opened and closed by a hinge, two slits are formed in an opening and closing direction of the lid with a gap that can be pressed by a finger at an arbitrary portion of the hinge and are pressed. An opening mechanism for a lid, characterized in that the cutout groove is formed so as to traverse the hinge groove of the hinge, and one of its ends reaches at least the main body or the lid. 11. The lid opening mechanism according to claim 10, wherein a bending groove is formed in the pressing operation portion at the same position as the hinge groove. 12. The lid opening mechanism according to claim 10, wherein a bending groove is formed at a position different from the hinge groove in the pressing operation portion. 13. The lid opening mechanism according to claim 11, wherein the bending groove of the pressing operation portion is formed by a molding method. 14. The lid opening mechanism according to claim 11, wherein the bending groove of the pressing operation portion is formed by a press working method. 15. A case in which a main body portion and a lid portion are integrally molded with a synthetic resin so as to be opened and closed by a hinge portion, and two slit long holes are provided at an arbitrary portion of the hinge portion with a finger pressable space. Is formed in the opening / closing direction as a pressing operation portion, and the cut groove is formed so as to cross the hinge groove of the hinge portion, and one of the end portions thereof is formed so as to reach at least the main body portion or the lid portion. Opening mechanism for the lid of the integrally molded case. 16. The mechanism for opening a lid of an integrally molded case according to claim 15, wherein the two elongated slits are formed in parallel. 17. The mechanism for opening the lid of the integrally molded case according to claim 15, wherein the two elongated slits are formed so as not to be parallel to each other. 18. The mechanism for opening the lid of the integrally molded case according to claim 15, wherein a bending groove is formed in the pressing operation portion at the same position as the hinge groove. 19. The mechanism for opening the lid of the integrally molded case according to claim 15, wherein a bending groove is formed at a position different from the hinge groove in the pressing operation portion. 20. The mechanism for opening the lid of the integrally molded case according to claim 15, wherein the hinge groove is formed at a position inside the case. 21. The mechanism for opening the lid of the integrally molded case according to claim 15, wherein a plurality of hinge grooves are formed. 22. The mechanism for opening the lid of the integrally molded case according to claim 19, wherein the bent groove is formed at a position inside the case. 23. The mechanism for opening the lid of the integrally molded case according to claim 19, wherein the bent groove is formed at a position on the outside of the case. 24. A plurality of bent grooves are formed.
9. A mechanism for opening the lid of the integrally molded case according to claim 9, 22 or 23. 25. A method of manufacturing a case in which a main body and a lid are integrally molded with a synthetic resin so that the main body and the lid are opened and closed by a hinge, and the main body and the lid are integrally molded so as to be connected by a hinge having a hinge groove. After that, two notch slots are formed in an arbitrary part of the hinge part across the hinge groove of the hinge part in the opening / closing direction of the lid, and one of the ends is provided with a gap so as to reach at least the main body part or the lid part. A method for manufacturing an integrally molded case, which is characterized by being installed. 26. A method of manufacturing a case in which a main body part and a lid part are integrally molded with a synthetic resin so as to be opened and closed by a hinge part, wherein the main body part and the lid part are integrally molded with each other by a hinge part having a hinge groove. In this case, two slit slots are formed in an arbitrary part of the hinge part across the hinge groove of the hinge part in the opening / closing direction of the lid, and one of its ends is formed so as to reach at least the main body part or the lid part. A method for manufacturing an integrally molded case characterized by the above. 27. The main body and the lid are connected by a hinge so as to be openable and closable, and the closed state is maintained by engaging the male and female hooks provided on the main body and the lid on the side opposite to the hinge with each other. In such a case, apart from the hinge, the main body and the lid are connected to the ends by a pressing operation part that can be pressed with a finger.The pressing operation part has a deformable shape and is pressed when the lid is closed. Form the female and male hooks on the main body and the lid so that the distance between the both ends of the operation part is minimized and the hooks of the male and female of the main body and the lid are released by pushing the hook part side of the main body. The one-push open-type case is characterized in that the lid is opened by pushing the pressing operation section with a finger. 28. The lid opening mechanism according to claim 27, wherein the pressing operation portion has a V-shaped cross section. 29. The lid opening mechanism according to claim 27, wherein the pressing operation portion has a U-shaped cross section. 30. The lid opening mechanism according to claim 27, wherein the pressing operation portion has a curved surface cross section. 31. A main body and a lid are connected by a hinge so as to be openable and closable, and a closed state is maintained by engaging an engaging portion provided on a side surface of the main body and the lid. In the case, apart from the hinge, the main body and the lid are connected to each other at their ends, and a pressing operation part that can be pressed with a finger is provided.The pressing operation part has a deformable shape, and the pressing operation part is closed when the lid is closed. The distance between both ends is minimized, and the main body and the lid are dislocated from each other in a horizontal direction so that the main body and the lid are disengaged from each other. A one-push open-type case characterized in that the lid is opened by pushing with a finger. 32. A main body and a lid are opened and closed by a hinge, and a closed state is maintained by engaging male and female hooks formed on the lid and the main body opposite to the hinge. In the case integrally molded with the synthetic resin as described above, two slit slots are formed in the opening and closing direction of the lid by providing a finger pressable space at an arbitrary portion of the hinge section to form a pressing operation section. The hinge groove of the hinge part is crossed, and one end of the hinge part is formed so as to reach at least the main body part or the lid part, and by pushing the hook part side of the main body part, the male and female hooks of the main body part and the lid part are A one-push open-type case characterized in that male and female hooks are formed on the main body and the lid so that the engagement is released. 33. The synthetic resin is configured such that the main body portion and the lid portion are opened and closed by the hinge portion, and the closed state is maintained by engaging the engagement portion formed on the side surface of the main body portion and the lid portion. In the case integrally formed with the above-mentioned case, an interval is provided at an arbitrary portion of the hinge portion so as to be pressed by a finger, and two slit long holes are formed in the opening / closing direction of the lid to form a pressing operation portion, and the slit groove is the hinge of the hinge portion. It is formed so as to cross the groove, and one of its ends is formed so as to reach at least the main body portion or the lid portion, and the main body portion and the lid portion are disengaged by slightly pushing the lid portion in the horizontal direction. A one-push open-type case characterized in that an engaging portion is formed on the cover and the lid. 34. When molding the main body portion and the lid portion in a developed state with the hinge portion connected to each other, two notched long holes are formed in the hinge portion to form a pressing operation portion, and the main body portion Separate the hook operating part from the rising part of the outer peripheral part so that it is continuous with the bottom part of the main body with the hook operating groove, and the stoppers protruding at both ends of the hook operating part from the side wall ends of the outer peripheral part A method for manufacturing a one-push open type case, characterized in that ribs are formed. 35. The method for manufacturing a one-push open type case according to claim 34, wherein the main molding material is a synthetic resin. 36. The method for manufacturing a one-push open type case according to claim 34, wherein the main molding material is paper.