JPH07237653A - Lid body mounting structure - Google Patents

Abstract

PURPOSE:To obtain a lid body-mounting structure so contrived as to reduce the number of parts and the time and cost required for fitting the parts together. CONSTITUTION:A lid body mounting structure is composed of an upper frame 2 on the main body side and a lid body 7 having their respective groove-like pivot supporting parts 14 and 15 formed in predetermined positions and a hinge part 11 having at both the ends two pivot parts 12 and 13 which respectively are pivotally inserted into the pivot supporting parts 14 and 15. The pivot part 12 of the hinge part 11 is provided with the elastic pieces 20 so extended as to slidably contact with both the side faces 14a of the pivot supporting part 14 and the locking pivot parts 16 formed at the ends of the elastic pieces 20 and the pivot supporting part 14 is provided with the locking recesses 21 for receiving the locking pivot parts 16 of the hinge part 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a lid, for example, to a structure of a hinge portion for mounting a lid or the like of a container made of synthetic resin on a main body so as to be openable and closable.

[0002]

2. Description of the Related Art Conventionally, hinges having various structures have been used to openably and closably mount lids such as containers and containers on a main body. In such a hinge, when the lid body is opened, the lid body can be rotated by 270 degrees to a position along the side wall of the main body portion, and a structure for preventing the hinge fitting from protruding from the outer surface is, for example, , Real fair 5
The hinge connection structure described in Japanese Patent No. 24777 is known.

[0003]

However, in the conventional hinge structure as described above, the hinge main body attached to the main body and the lid, the hinge piece mounted between the hinge main bodies, the hinge main body and the hinge piece. It is composed of a shaft member that rotatably couples with each other. Since a metal rod or the like is used for the shaft member, the number of parts is large and much time and cost are required for assembly.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a lid mounting structure which can reduce the number of parts and the time and cost required for assembly.

[0005]

In order to achieve the above-mentioned object, the lid mounting structure of the present invention is a lid mounting structure in which the lid is hinged to the main body so that the lid can be opened and closed. It comprises a groove-shaped shaft support portion formed at a predetermined position and a hinge piece having two shaft attachment portions at both ends which are respectively inserted into the shaft support portions and axially attached to each other, and the hinge piece includes at least one of the hinge pieces. The shaft attachment portion has an elastic piece extending from the piece main body portion so as to be in sliding contact with both side surfaces of the shaft support portion, and an engagement shaft portion provided at a tip end portion of the elastic piece. The shaft-supporting portion that is pivotally mounted has an engagement hole that supports the engagement shaft portion of the hinge piece.

[0006]

[Operation] According to the above configuration, when the engaging shaft portion at the tip is inserted into the groove of the shaft supporting portion with the elastic piece of the hinge piece deformed, the position where the engaging shaft portion and the engaging portion engage with each other. The two are engaged by the restoring force of the elastic piece. Therefore, the hinge piece and the lid and / or the main body can be directly hinge-coupled, and the conventional hinge main body and shaft member can be omitted.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail based on an embodiment shown in the drawings. 1 is an exploded perspective view of a main part showing an embodiment of a lid mounting structure according to the present invention, FIG. 2 is a front sectional view, FIG. 3 is a sectional side view with the lid closed, and FIG. 4 is a lid. FIG. 5 is a cross-sectional side view of the opened state, and FIG. 5 is a perspective view of a synthetic resin folding container to which the present invention is applied.

The folding container 1 shown in FIG. 5 is rotatably attached to the upper frame 2 and the bottom plate 3 and the upper frame 2 and the bottom plate 3, and is bent inward at the connecting portion 4. A side plate 5 composed of an upper plate 5a and a lower plate 5b connected to each other, a swing plate 6 rotatably attached to the upper frame 2, and an openable / closable attachment to the upper frame 2 via a hinge piece 11. It is constituted by a lid body 7, 7.

The folding container 1 has both side plates 5 after the both swing plates 6 are rotated inward from the use state shown in FIG.
It can be folded by bending the connecting portion 4 of the inside inward, and from the folded state, after raising the upper frame 2 to extend the connecting portion 4 of the side plate 5, By assembling it, it is assembled into the state shown in FIG.

Upper frame 2 which constitutes the main body of the container 1
1 and 4, the lid 7 attached to the upper frame 2 so as to be openable and closable includes the shaft mounting portions 12 and 13 provided at both ends of the hinge piece 11 as the upper frame 2 and the lid. The body 7 is attached by being axially attached to groove-shaped shaft support portions 14 and 15 provided in each body 7.

The hinge piece 11 is formed of a material having appropriate elasticity such as a synthetic resin so as to match the groove width of the shaft support portions 14 and 15, and one of the shaft attachment portions 12 has an engagement shaft. The portion 16 is formed so as to project to both sides, and the other shaft attachment portion 13 is formed with a shaft groove 18 into which the shaft member 17 provided on the shaft support portion 15 of the lid 7 is rotatably fitted.

The engaging shaft portion 16 is provided at the tip of elastic pieces 20, 20 extending from the piece main body portion 19 so as to be in sliding contact with both side surfaces 14a of the shaft supporting portion 14, and the shaft of the upper frame 2 is provided. The support portion 14 is provided with an engagement hole 21 in which the engagement shaft portion 16 is rotatably engaged, and a guide groove 22 for guiding the engagement shaft portion 16 into the engagement hole 21.

A shaft groove 18 provided in the other shaft mounting portion 13
Is for fitting the shaft member 17 by elastic deformation of the end side peripheral wall 23, and the opening 24 of the shaft groove 18 is larger than the diameter of the shaft member 17 so that the shaft member 17 can be easily inserted into the groove. The opening width is formed.

The coupling between the shaft mounting portion 12 of the hinge piece 11 and the shaft supporting portion 14 of the upper frame 2 is such that both elastic pieces 20 are deformed inward as shown in phantom lines in FIG. The guide groove 22
After being inserted therein, the hinge piece 11 is pushed so that the engaging shaft portion 16 reaches the position of the engaging hole 21, and the restoring force of the elastic piece 20 causes the engaging shaft portion 16 and the engaging hole 21 to engage with each other. It can be done by At this time, since the guide groove 22 is provided, it is possible to extremely easily engage the both. Further, if the lower end of the engagement shaft portion 16 is chamfered, the engagement becomes easier. The positions of the engagement shaft portion 16 and the engagement hole 21 are changed. May be.

Further, the other shaft attachment portion 13 of the hinge piece 11 and the shaft support portion 15 of the lid body 7 are coupled to each other through the opening 24 and the shaft member 17.
It can be performed by pushing in the hinge piece 11 in accordance with.

With this structure, the upper frame 2 and the lid 7 can be openably and closably coupled only via the hinge piece 11, so that the conventional hinge body and shaft member are not required. In addition, the number of parts can be reduced, and assembling can be performed only by pushing the hinge piece 11, so that the assembling workability can be significantly improved, and the time and cost required for assembling can be reduced. .

Moreover, since the groove-shaped shaft support portions 14 and 15 are provided in the upper frame 2 and the lid body 7 to insert the hinge piece 11, the hinge piece 11 projects from the outer surface of the upper frame 2 and the lid body 7. And the upper frame 2 and the lid 7 do not interfere with each other when the containers 1 are stacked.
Since they are coupled by the two shaft mounting portions 12 and 13 provided at both ends of the lid 7, the lid 7 can be rotated by 270 degrees from the closed state shown in FIG. 3 to the open state shown in FIG. Further, since the wall portion 14b that prevents the hinge piece 11 from rotating is provided on the inner side of the container of the shaft support portion 14 of the upper frame 2, the lid 7 is provided.
Positioning when the is closed can also be reliably performed.

The other shaft mounting portion 13 may have the same structure as the one shaft mounting portion 12.

[0019]

As described above, according to the present invention,
Since lids of various containers and containers can be openably and closably attached to the main body portion only by the hinge pieces, the number of parts of the hinge portion and the assembling time can be shortened. Further, since the hinge piece is configured to be inserted into the groove-shaped shaft supporting portion, the hinge piece does not project to the outer surface, and since the hinge piece has two pivot centers, the lid can be opened greatly. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view of essential parts showing an embodiment of the present invention.

FIG. 2 is likewise a front sectional view.

FIG. 3 is a sectional side view of the same with the lid closed.

FIG. 4 is a sectional side view of a state in which the lid is also opened.

FIG. 5 is a perspective view of a folding container to which the present invention is applied.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Folding container, 2 ... Upper frame, 7 ... Lid, 11 ... Hinge piece, 12, 13 ... Shaft attachment part, 14, 15 ... Shaft support part, 16
... Engaging shaft portion, 17 ... Shaft member, 18 ... Shaft groove, 19 ... Piece main body portion, 20 ... Elastic piece, 21 ... Engaging hole, 22 ... Guide groove

Claims (1)

[Claims] 1. A mounting structure for a lid body (7) for hingedly connecting the lid body (7) to a main body so that the lid body (7) can be opened and closed.
4) and (15), and two shaft mounting parts (12) and (1) that are respectively inserted into the shaft supporting parts (14) and (15) and shaft mounted.
3) having hinge pieces (11) at both ends thereof, the hinge pieces (11) include at least one shaft attachment portion (12).
The elastic piece (20) extending from the piece body (19) so as to be in sliding contact with both side surfaces (14a) of the shaft support (14).
And an engaging shaft portion (1) provided at the tip of the elastic piece (20).
6) and a shaft supporting portion (1) for pivotally mounting the shaft mounting portion (12).
4) A lid mounting structure, characterized in that it has an engagement hole (21) for supporting the engagement shaft portion (16) of the hinge piece (11).