JP2806282B2 - Hinge structure of synthetic resin product and attache case using the hinge structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure for opening and closing a synthetic resin product, for example, and relates to a synthetic resin attache case using the hinge structure.

[0002]

2. Description of the Related Art Conventionally, as a hinge structure b for opening and closing a container a made of synthetic resin, for example, as shown in FIG. 9, the ends of a container body c and a lid d are hinged with a hinge piece e. Although they are integrally formed in a connected state, there is a type in which a center portion of a hinge piece e is formed as a thin portion f so as to be easily rotated.

[0003]

However, in the case of the conventional synthetic resin container a, the ends of the container body c and the lid d are connected by a hinge piece e, and the center of the hinge piece e is thinned. Since the portion f is used, the rotation can be smoothly performed to some extent when a load is not applied.
When twisted or the like, there is a problem that the thin portion f is cracked and broken, so that the strength is very weak. In addition, the container body c and the lid d including the hinge piece e are integrally formed in an expanded state. Therefore, there is also a problem that a large mold is required and the cost is increased.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hinge structure of a synthetic resin product which is excellent in strength, can be opened and closed smoothly, and can be manufactured at low cost, and an attache case using the hinge structure. It is.

[0005]

In order to achieve the above object, a connecting piece having a rotating rod at the tip is extended to one of two rotatable synthetic resin members, and A synthetic resin product, comprising: a receiving member having a fitting portion which is rotatable by fitting a rotating rod, and a thin portion is provided at a position where the connecting piece can be bent in the rotating direction. It is intended to provide a hinge structure.

According to the effects described later, a structure in which both the boundary between the connecting piece and the pivotal rod and the boundary between the connecting piece and the member are thin portions is provided.
Alternatively, the both ends of the substantially cylindrical rotating rod are connected to one member by a pair of connecting pieces, and the receiving member having the arc-shaped inner surface for fitting the central portion of the rotating rod as the fitting portion is the other. It is more preferable to adopt a structure provided on the member.

[0007] Similarly, in order to achieve the above object,
A synthetic resin attache case in which the lid can be freely opened and closed with respect to the case body, wherein a connecting piece having a rotating rod at the tip is extended from an end of the lid, and the rotating rod is fitted. An attache case using a hinge structure in which a receiving member having a rotatable fitting portion is provided at an end of a case body, and a thin portion is provided at a position where the connecting piece can be bent in the rotating direction. It is intended to provide.

According to the effects described later, one side of the handle piece is turned on a handle portion having a through-hole provided from the case body to the lid in an appropriate position of the attache case, or on a side wall of the attache case facing the hinge structure. It is more preferable to use one that can be freely pivoted and fixed and held on the other side by fitting with an attache case.

[0009]

As described above, according to the hinge structure for a synthetic resin product of the first aspect of the present invention, when the other member is rotated with respect to one member, the rotating rod rotates within the fitting portion of the receiving member. While moving, the bending at the thin portion provided on the connecting piece so as to be able to bend in the turning direction makes it possible to turn the other member smoothly and without imposing an excessive load on one member.

According to the hinge structure of the synthetic resin product of the second aspect, the thin portion provided at the boundary between the connecting piece and the pivotal rod or at both the boundary between the connecting piece and the member is bent, so that one member is connected to the other member. Can be rotated smoothly and without imposing an excessive load.

According to the hinge structure of the synthetic resin product of the third aspect, the central portion of the substantially cylindrical rotating rod which is connected to one member by a pair of connecting pieces on both sides is provided on the other member. By rotating inside the fitting portion having the arc-shaped inner surface of the member, the other member can be rotated with respect to one member.

According to the attache case of the fourth aspect, the lid body can be freely rotated by a hinge structure with respect to the case body, and can be opened and closed.

According to the attache case of the present invention, it is possible to carry the attache case by putting a hand into the handle portion provided with a through hole from the case body formed at an appropriate position of the attache case to the lid, and holding it.

According to the sixth aspect of the present invention, the cover can be opened and closed by rotating the handle, and the other side of the handle is fitted and fixedly held to a part of the attache case to carry the attache case. be able to.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In the attache case A, as shown in FIGS. 1 to 4, the lid 3 can be opened and closed with the hinge structure 2 with respect to the case main body 1, and the lid 3 is closed with respect to the case main body 1 with the stopper portion 4. In this state, all members are formed of synthetic resin.

As shown in FIGS. 3 to 5, the case body 1 is a case having an open upper surface. A horizontal partition plate 6 for storing the document 5 is provided in an upper portion of the case body 1, and the horizontal partition is provided. By providing vertical partitions 8 at both ends of the upper space 7 partitioned by the plate 6, a space for accommodating small articles is formed, and a through hole 10 is formed in the center of the upper space 7.
A folded piece 11 protrudes into the inside along the opening end of. In FIG. 5, the notch 12 is provided in the horizontal partition plate 6 in order to make it easy to take the document 5 stored therein.

As shown in FIGS. 2 to 4, the lid 3 is a shallow case having an open upper surface. The lid 3 can be fitted to the open end of the case body 1, and the horizontal partition plate 6 of the case body 1 can be fitted.
A horizontal partition plate 6 for storing the document 5 is provided at an upper portion in the lid 3 at a position facing the front side, and both ends of an upper space 7 partitioned by the horizontal partition plate 6 are provided with vertical partition plates 8 so that small articles can be obtained. A through-hole 10 is formed in the center of the horizontal partition plate 6, and a folded piece 11 is protruded inside along the opening end of the through-hole 10 to be symmetrical with the case body 1. It has a simple shape. Further, as shown in FIG. 4, the lid 3 is not provided with the vertical partition plate 8 in the entire upper space 7 but is formed halfway, and the pair of pins 13 is erected to stand up, and the mechanical pencil 14 and the like are sandwiched therebetween. It is elaborate so that it can be held. In addition, the through-hole 10 formed by the folded piece 11 of the case body 1 and the lid 3 is used as the handle 9, and the attache case A can be carried by holding the handle 9, so that the handle is separated by another member. There is no need to form it, it can be inexpensive in terms of cost, and it gives a novel image in terms of design.

As shown in FIG. 6, the hinge structure 2 is provided with a substantially cylindrical rotating rod 15 spaced apart along the lower side at three places at the lower end of the lid 3. Connect both sides of the piece
Connected with 16, the boundary between the connecting piece 16 and the rotating rod 15 is a thin portion 17,
The boundary between the connecting piece 16 and the side wall 3a of the lid 3 is a thin portion 17, and a concave portion 18 for positioning the rotating rod 15 is provided on the lower surface of the case body 1, and at the upper end of the side wall provided with the cutout portion 18a, A receiving member 20 in which a part of the cylindrical member is cut out in the axial direction and the arc-shaped inner surface for fitting the central portion of the rotating rod 15 as the fitting portion 19,
It is provided at a position corresponding to the rotating rod 15. Then, using the hinge structure 2, the case body 1 and the lid 3
When assembling, the rotating rod 15 of the lid 3 is
It can be assembled by press-fitting into the fitting portion 19 of the receiving member 20 and forcibly fitting it, and by turning the rotating rod 15 in the fitting portion 19 of the receiving member 20 and bending at the thin portion 17 The lid 3 can be smoothly rotated with respect to the main body 1 without applying an excessive load.

In the hinge structure 2 described above, the connecting piece 16
The thin portion 17 is provided at both the boundary between the rotating rod 15 and the boundary between the connecting piece 16 and the side wall 3 a of the lid 3. It may be provided. In the hinge structure 2 described above, the rotating rod
Although the connecting pieces 16 are located on both sides of the rotating rod 15, the connecting pieces 16 are located at the center of the rotating rod 15, and both sides of the rotating rod 15 are supported by the fitting portions 19 of the receiving members 20. May be done.

As shown in FIG. 8, the stopper portion 4 has a storage recess 21 substantially at the center of the upper surface of the attache case A,
A handle piece of a U-shaped member having a cross section located in the storage recess 21.
22 and pivot pins 23 are erected on both sides in the storage recess 21 of the case body 1 and a fitting cylindrical body is attached to the lower end of the handle piece 22.
24, 24, and the pivot pins 23, 23
4 and 24 so that the handle 22 is rotatable.
The engaging projection 25 provided at the front end of the
By engaging with the case 26, the engaging projection 25 can be fixedly held to the case body 1.

In the above-described example, the attache case A is taken as an example. However, the present invention is also applicable to a container for storing small items, a container for storing large items, and a hinge structure between a container body and a lid in various other containers. Further, the present invention can be used not only for the container but also for various other hinged structures of two members made of a synthetic resin which can freely rotate.

According to the attache case A of the present embodiment, the handle 22 of the stopper 4 is rotated in the opening direction to release the engagement between the engaging projection 25 and the fixing ridge 26, and FIG. The handle piece 22 is removed as shown in FIG.
When rotated in the direction of the middle arrow, the rotating rod 15 rotates within the fitting portion 19 of the receiving member 20, and the lid 3 is smoothly and unnaturally folded with respect to the case body 1 by bending at the thin portion 17. It can be rotated without applying a load and can be opened to about 180 degrees. Further, in the open state as shown in FIG. 4, the documents 5 are stored in the case body 1 partitioned by the horizontal partition plate 6, and clipped into the upper space 7 partitioned by the vertical partition plate 8.
27, eraser 28, etc. can be stored.
The mechanical pencil 14 and the like can be held between a pair of pins 13 provided on the inner surface and held. Furthermore, the case body 1
When the lid 3 is rotated in the closing direction with respect to
The fitting part 19 of the receiving member 20 of the rotating rod 15
By turning inside, the lid 3 can be turned and closed smoothly and without imposing an excessive load on the case body 1, and the handle 22 of the stopper part 4 can be turned in the closing direction. The engaging projection 25 and the fixing ridge 26 are engaged, and the lid 3 is fixedly held to the case body 1. Therefore, the document 5 can be carried by using the attache case A as a bag, and can be used for organizing documents by arranging the attache case A on a shelf.

As described above, the attache case A of this embodiment is used.
According to this, even when the lid 3 is twisted with respect to the case main body 1 and an excessive load is applied to the hinge structure 2 at the time of opening and closing, the hinge member 2 is bent at the thin portion 17 and the receiving member 20 of the rotating rod 15 is opened. The cover 3 can be rotated with respect to the case body 1 in the attache case A, for example, while absorbing an unreasonable load by the rotation in the fitting portion 19, so that a smooth and unreasonable load is not applied. The rotation can be performed in a short time, and the strength can be improved. Also, when the attache case A is integrally molded with a synthetic resin using a mold, the hinge structure 2 can be formed by assembling the case body 1 and the lid 3, so that the case body 1 and the lid 3 are separately integrated. It can be molded, and the cost can be significantly reduced as compared with the case where the case body 1 and the lid 3 are integrally molded at one time.

[0024]

Since the present invention is configured as described above, the following effects can be obtained. According to the hinge structure of the synthetic resin product of the first aspect and the attache case of the fourth aspect, the hinge structure is applied to the attache case, the lid is rotatably connected to the case body, and the lid is connected to the case body at the time of opening and closing. Even if the lid is twisted and an excessive load is applied to the hinge structure, the attache case absorbs the excessive load by bending in the thin portion of the hinge structure and rotating inside the fitting part of the receiving member of the rotating rod. Since the lid can be rotated with respect to the case body in the above, the rotation can be performed smoothly and without applying an excessive load, and the strength is excellent. Further, when the attach case is made of one member and the other member, for example, when the attache case is integrally molded with a synthetic resin using a mold, a hinge structure can be formed by assembling the case body and the lid, so that the case body and the lid are formed. The bodies can be integrally molded separately, and the cost can be significantly reduced as compared with the case where the case body and the lid are integrally molded at once.

According to the hinge structure of the synthetic resin product of the second aspect, since the connecting piece is provided with the thin portion, even if a load for twisting the lid is applied to the case body from any direction, the smoothness can be obtained. Can be rotated.

According to the hinge structure of the synthetic resin product of the third aspect, while the thin portions of the connecting pieces on both sides absorb an unreasonable load, the substantially cylindrical rotating rod is formed at the center in the arc-shaped inner surface of the receiving member. Therefore, the rotation can be performed more stably, and the strength can be further improved.

According to the attache case of the fifth aspect, the handle portion is formed by providing a through hole from the case body to the lid at an appropriate position of the attache case, so that it is not necessary to form the handle portion with a separate member. In addition, the cost can be reduced.

According to the attach case of the sixth aspect, the other side of the handle can be fitted and fixedly held to a part of the attach case, so that the structure can be simplified and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of an attache case according to a representative embodiment of the present invention.

FIG. 2 is a side view of the attache case.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a plan view showing a use state in which an attache case is opened.

FIG. 5 is a perspective view of a handle;

FIG. 6 is an exploded perspective view of a hinge structure.

FIG. 7 is an explanatory sectional view showing the movement of the hinge structure.

FIG. 8 is a perspective view of a stopper portion.

FIG. 9 is an explanatory sectional view of a conventional hinge structure.

[Explanation of symbols]

A Attach case 1 Case body 2 Hinge structure 3 Lid 4 Stopper part 5 Document 6 Horizontal divider 7 Upper space 8 Vertical divider 9 Handle 10 Through hole 11 Folded piece 12 Notch 13 Pin 14 Mechanical pencil 15 Rotating rod 16 Connection Piece 17 thin part 18 recess 19 fitting part 20 receiving member 21 storage recess 22 handle piece 23 pivot pin 24 fitting cylinder 25 engaging projection 26 fixing projection 27 clip 28 eraser

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A45C 13/00 A45C 3/02 A45C 5/00 B65D 43/16 F16C 11/04

Claims (6)

(57) [Claims] 1. A connecting piece having a rotating rod at the tip is extended on one of two members made of a synthetic resin which is rotatable.
A synthetic resin product, comprising: a receiving member having a fitting portion that is rotatable by fitting the rotating rod, and a thin portion is provided at a position where the connecting piece can be bent in the rotating direction. Hinge structure. 2. The hinge structure for a synthetic resin product according to claim 1, wherein both the boundary between the connecting piece and the pivotal rod and the boundary between the connecting piece and the member are thin portions. 3. An end portion of a substantially cylindrical rotating rod is connected to one of the members by a pair of connecting pieces, and a circular arc-shaped inner surface for fitting a central portion of the rotating rod is used as a fitting portion. 3. The hinge structure for a synthetic resin product according to claim 1, wherein the member is provided on the other member. 4. An attache case made of a synthetic resin in which a lid body can be freely opened and closed with respect to a case body, wherein a connecting piece having a rotating rod at a tip is extended from an end of the lid body, and the rotating rod is provided. A hinge member having a receiving portion having a fitting portion that is rotatable by fitting the same into an end portion of the case body and having a thin portion at a position where the connecting piece can be bent in the rotating direction is used. Attache case characterized by. 5. The attache case according to claim 4, wherein a handle portion having a through hole extending from the case body to the lid is formed at an appropriate position of the attache case. 6. The attache case according to claim 5, wherein one side of the handle is rotatably connected to the side wall of the attache case facing the hinge structure, and the other side can be fixedly held by fitting with the attache case.