JPS6013795Y2 - container hinge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hinge device with a novel structure for connecting the bottom and lid of a container in an openable and closable manner.

For example, a metal container whose lid is opened and closed by a hinge device, such as a pencil case, usually consists of three or more members consisting of a bottom, a lid, and one or two pins as a shaft for connecting these parts. has been done.

However, the presence of this pin necessitates the addition of several manufacturing steps, which poses a problem that affects the manufacturing cost of the container.

Further, in many cases, the pin is attached from the inside of the bottom, and with this structure, it is almost impossible to fill the bottom with articles before attaching the lid.

Therefore, it is necessary to fill the container with the lid member after assembly, making it extremely difficult to use an automatic article filling device.

The present applicant has already proposed in Utility Model Application No. 55-25488 that the bottom part and the lid part be separated without using pins, and that two protruding shafts of different lengths are attached to a part of the lid part on the metal part of the lid part. We have proposed a hinge device for a container that is formed by rolling a plate so that the lid can be easily attached even after filling the container.

Although the temple hinge device has proven to be extremely effective for its intended purpose, it requires that the sidewall of the lid connection extend downwardly longer than the other peripheral sidewalls to create a step. Therefore, the thickness of the container must necessarily be greater than a certain thickness, which has the drawback of making it difficult to manufacture thin containers.

Therefore, the present invention makes it possible to manufacture a thin container by devising the bottom and eliminating the level difference between the connecting part and the peripheral side wall. The object of the present invention is to provide a hinge device for a container that allows a lid to be attached and has a simple structure. In a container that opens and closes a portion, the lower end edge position of the side wall that becomes the connecting portion of the lid portion is set at approximately the same horizontal position as the periphery of the other side wall of the lid portion, and the boundary between the connecting portion and the periphery is located at two places. A notch is provided in the horizontal direction of each of the connecting portions, and two protruding shafts of different lengths facing outward are attached to the notches in the horizontal direction on both sides of the lower edge of the connecting portion, and the connecting portion of the bottom portion is provided with a notch in the horizontal direction. Two ridges that bulge outward and are spaced apart are formed in the horizontal direction on the side wall that forms the part, and these ridges are provided with shaft holes that face each other and face inward. A convex groove recessed inward is formed between the two shaft holes, and the distance between the two shaft holes is slightly larger than the distance from the tip of the short protruding shaft to the root of the long protruding shaft, and the two shaft holes are It is characterized in that each of the protruding shafts is rotatably fitted into the hole.

The present invention will be explained in detail based on illustrated embodiments.

FIG. 1 shows a perspective view of the container before the lid 2 and bottom 3 are connected.

The hinge device functions by combining connecting portions 6 and 7 provided on side walls 4 and 5 of the lid portion 2 and bottom portion 3, which are formed based on metal plates.

In the lid part 2, the edge 9 of the surrounding wall 8 is a rolled-up part 10 that is curved outwardly or inwardly in a rounded shape, and is cut at two places at the boundary with the connecting part 6. Including part 11a, llb
is provided.

In the notches 11a and 11b, a part of the winding part 10 is used as it is to form protruding shafts 12a and 12b, as shown in FIG. 2, one side of which is enlarged.

The protruding shafts 12a, 12b protrude outward from the lower edge 13 of the connecting portion 6, and the notches 11a, llb
By making the cutting depths different, the length of the protruding shaft 12b on the side of the longer notch 11b is approximately twice that of the protruding shaft 12a on the other side.

On the other hand, the connecting portion 7 of the bottom portion 3 has a horizontal ridge 14 that bulges outward. a, 14b are formed, each of which is provided with shaft holes 15a, 15b facing inward and facing each other, and a ridge 14a is formed through these shaft holes 15a, 15b.
, 14b, the protruding shafts 12a, 12b of the lid portion 2 are respectively rotatably fitted.

Shaft hole 15a. In order to fit the protruding shafts 12a and 12b to the shaft hole 15b, it is sufficient to insert the protruding shaft 12b on one side into the shaft hole 15b on one side, and then insert the protruding shaft 12a on the other side into the remaining shaft hole 15a. However, for this reason, the protruding shaft 12b protrudes approximately twice as long as the protruding shaft 11a on the other side.

That is, for example, the protruding shaft 1 on the other side from the root of the protruding shaft 12b
The length 1□ to the tip of 2a is the shaft hole 15a, 1 of the bottom 3.
The distance between 5b must be slightly shorter than 1°.

Therefore, when the lid part 2 is wide open with respect to the bottom part 3,
The protruding shaft 12b is inserted into the ridge 14b through the shaft hole 15b of the bottom part 3.
When the protruding shaft 12b is inserted deeply into the shaft hole 15b until the root thereof reaches the shaft hole 15b, the tip of the protruding shaft 12a on the other side is located at the entrance of the shaft hole 15a on the other side.

Therefore, by slightly moving the connecting portions 6 and 7 in opposite directions in the horizontal direction so that the protruding shaft 12a enters the shaft hole 15a, a connected state as shown in FIG. 3 is obtained.

In this case, since the ridges 14a and 14b are greatly bulged outward, even when the cover part 2 is mounted or opened/closed, the lower end edge 13 on the connecting part 6 side and the end edge 9 of the side wall 4 are , it does not come into strong contact with the side wall 5 of the bottom portion 3 on the connecting portion 7 side, and does not become an obstacle to fitting and opening/closing.

Moreover, once the connected state shown in FIG. 3 is obtained, the tip of the protruding shaft 12b lightly contacts the inner part of the ridge 14b, so that the lid part 3 may accidentally become horizontal even when opening or closing. It will no longer move in any direction.

FIG. 4 shows a second embodiment, and in the first embodiment shown in FIG.
In order to prevent strong contact with the peripheral wall 5 of the connecting portion 7, the ridges 14a and 14b are bulged outward to a large extent, whereas in FIG. 4, the ridges 14a'? 14b'c is of normal size, and grooves 16c, 16a are provided between the ridges 14''t14b' and on both sides of the ridges 14a'?
, 16b are provided.

By doing this, the lower end edge 13 and end edge 9 of the lid part 2 are
It fits within the convex grooves 16a to 16c, and is prevented from coming into strong contact with the peripheral wall 5 of the bottom portion 3, as in the first embodiment.

FIG. 5 shows still another third embodiment, and shows the first embodiment.
In the second embodiment, the protruding shafts 12b, 12b were formed using the winding part 10 of the lid part 2, whereas the protruding shaft 1
2a and 12b are made of metal or synthetic resin and are separate from the lid part 2.

That is, the lower end edge 13 of the connecting part 6 of the lid part 2 is wound with a slightly larger diameter than the wound part 10 of the end edge 9 of the other peripheral wall 8, and one pin 17 is inserted here and crimped. It is fixed with a stopper.

Both sides of the pin 17 are provided with protruding shafts 12a and 12b having different lengths, similar to the previous embodiment.

In this case, the strength of the hinge mechanism will be increased, but
Even when the structure of the first embodiment is used for the bottom part 3, due to the diameter of the lower edge 13 through which the pin 17 of the lid part 2 is inserted, the grooved line in the center part of the second embodiment is The existence of the groove 16c is almost inevitable.

Further, the pin 17 does not need to be a single rod, but two shorter pins may be inserted from both sides.

Furthermore, the pin 17 may be attached to the lid part 3 by means such as welding or welding other than the above-mentioned insertion and fixation.The present invention is not limited to the above-described embodiments.
Many variations are possible within the scope of the utility model registration claim.

For example, the lid part 2 and the bottom part 3 do not necessarily have to be made of metal, and may be made of synthetic resin without any problem.

In this way, the container hinge device according to the present invention provides two protruding shafts of different lengths at the connecting portion of the lid, and by placing the protruding shafts and the other side wall periphery in the same horizontal position, It is possible to manufacture a thin container, which reduces manufacturing costs, and since the lid can be attached after filling the bottom with articles, there is an advantage that work efficiency in filling articles is improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the hinge device for a container according to the present invention, in which FIG. 1 is a perspective view of the hinge device before the bottom and lid are combined, FIG. 2 is an enlarged perspective view of the protruding shaft, FIG. 3 is a front view of the hinge device after assembly, FIG. 4 is a perspective view of the bottom of another embodiment, and FIG. 5 is a perspective view of the lid of still another embodiment. 2 is a lid, 3 is a bottom, 4 and 5 are side walls, 6.7 is a connecting portion, 9 is a periphery, 10 is a rolled-up portion, and 11a. 11b is a notch, 12a and 12b are protruding shafts, 13 is a lower edge, 14a, 14a', 14b, 14b'
are ridges, 15a, 15b are shaft holes, 16a, 16b, 16
c is a groove, and 17 is a pin.

Claims (1)

[Claims for Utility Model Registration] 1. In a container in which the lid is opened and closed with respect to the bottom by a hinge between the bottom and the lid, the lower edge of the side wall that forms the connection between the lid and the bottom. The position is approximately the same horizontal position as the periphery of the other side wall of the lid part, and the two parts between the connecting part and the periphery are
A notch is provided in the horizontal direction at the boundary of each part, and two protruding shafts facing outward and having different lengths are installed in the horizontal direction on both sides of the lower edge of the connecting part, respectively, in the notch, and Two ridges that bulge outward and are spaced apart are formed in the horizontal direction on the side wall that serves as the connecting part of the bottom, and these ridges are provided with shaft holes that face each other and face inward. The distance between the two shaft holes is slightly larger than the distance from the tip of the short protruding shaft to the root of the long protruding shaft. A hinge device for a container, characterized in that each of the protruding shafts is rotatably fitted into a shaft hole. 2. The hinge device for a container according to claim 1, wherein the protruding shaft is formed using a winding portion of the lid. 3. The container hinge device according to claim 1, wherein the projecting shaft is formed using a pin separate from the lid.