JP2937980B2 - Support structure of container lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a container for covering a lid with a container.
The present invention relates to a technology for pivotally supporting an antenna body .

[0002]

2. Description of the Related Art Conventionally, as this kind of pivot support structure, for example, there is a structure in which a lid is rotatably mounted on a container having an open upper surface. As such a conventional example, there is one in which a rotating shaft is made of synthetic resin in order to make a container with a lid capable of recycling and reusing synthetic resin material. In this container, the lid is rotatably attached to the container body. The supporting means for mounting is constituted by a rotating shaft formed by integrally connecting both ends to the container body side, and a bearing portion provided on the lid side rotatably fitted on the rotating shaft. Such an application has already been filed as Japanese Patent Application No. Hei 9-132581.

[0003] However, in the case where both ends of the synthetic resin rotary shaft are integrally connected to the container body side as described above, a load is applied to the rotary shaft when the lid is rotated. When an abnormal load is applied as a load on the rotating shaft, a large load is applied to the end of the rotating shaft at the end of the continuous connecting base, causing whitening or deterioration, bending or deformation at the rotating shaft end. If the end of the rotating shaft breaks, the pivotal rotation of the lid becomes impossible.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. Even if an abnormal load acts on the shaft support, the center of the rotary shaft is broken. The container can be prevented from breaking at both ends of the rotating shaft, so that even if the rotating shaft breaks, the rotation of the lid is not hindered .
It is an object to provide a lid support structure.

[0005]

Means for Solving the Problems] journalled structure of the lid of the container of the present invention in order to solve the above problems, the container main body 1
For pivotally mounting the lid 2 by the shaft support means B
In the supporting structure of the antenna lid, the supporting means B is a container.
It is arranged so as to bridge the notch 4 provided in the main body 1
And the rotation integrally provided from both sides of the notch 4
The shaft 5 and the cover 2 are provided integrally with each other,
Of the notch 4
The diameter at both ends of the rotating shaft 5 integrally connected to both side surfaces is large.
The diameter of the bearing portion is reduced and the center portion is reduced in diameter.
Are a pair of bearing halves 6a and 6b and a pair of bearing halves 6a and 6b.
b and a hinge portion 6c provided between
The bearing half 6 a is integrally connected to the lid 2, and both sides of the notch 4
A gap is formed between the surface and the bearing 6
It is assumed that. With such a configuration, the lid 2
During the rotation, when a large load, such as to break the rotary shaft 5 is applied to the rotary shaft 5, without breaking the both end portions of the rotary shaft 5, it will be broken at the small diameter portion of the central portion, As a result, since both ends of the rotating shaft 5 remain without being broken, both sides of the bearing 6 are surely supported by the large-diameter portions of the remaining both ends of the rotating shaft 5 to stabilize the lid 2. Thus, the pivoting can be continued.

A thick portion 6d having an inner diameter smaller than that of both sides is provided at the center of the inner peripheral portion of the bearing portion 6, and the thick portion 6d is attached to a small-diameter shaft portion 5b at the center of the rotating shaft 5. It is preferable that both ends of the thick portion 6d are closely opposed to side ends of the large-diameter shaft portion 5a at both ends of the rotating shaft 5. As described above, since both ends of the thick portion 6d of the bearing portion 6 are in close proximity to the large-diameter shaft portions 5a at both ends of the rotary shaft 5, the bearing portion 6d is formed.
Can be prevented from laterally displacing with respect to the rotating shaft 5.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. As shown in FIGS. 1 to 4,
A flange 3 is integrally formed on an upper end opening edge of a container-shaped container body 1 made of a synthetic resin having an opening on an upper surface, and a plurality of the flanges 3 are provided at appropriate intervals in the longitudinal direction. (4 in this example) notches 4 are provided,
The rotating shaft 5 is arranged in the notch 4 so as to extend therethrough. Both ends of the rotating shaft 5 are integrally connected from both side surfaces of the notch 4. That is, when the container main body 1 is molded with synthetic resin, the rotating shaft 5 is also molded with synthetic resin integrally with the container main body 1.

As shown in FIGS. 4 and 6, the rotary shaft 5 having both ends integrally formed from both side surfaces of the notch 4 has a large-diameter shaft portion 5a having a large diameter at both ends. Thus, a small-diameter shaft portion 5b whose central portion has a smaller diameter than the large-diameter shaft portion 5a. In addition, a reinforcing portion 5c chamfered in a round shape is provided at a continuous base from both side portions of the notch 4 at both ends of the rotating shaft 5, and the rounded reinforcing portion 5c serves as a reinforcing function and a bearing. A gap is formed between the portion 6 and the side surface of the notch 7 so that the bearing portion 6 can rotate smoothly.

Openable and closable at the opening on the upper surface of the container body 1
The lid 2 made of synthetic resin is large enough to cover the opening on the upper surface of the container body 1 with two sheets, and the two lids 2 are formed in a substantially rectangular shape and are molded of synthetic resin. Of the pair of edges parallel to the longitudinal direction of the lid 2, the bearing portion 6 is integrally protruded from one edge, and the overlapping projection 25 is integrally protruded from the other edge. A plurality (four in this example) of bearing portions 6 are provided in parallel at equal intervals in the longitudinal direction of the edge of the lid 2.

The bearing 6 comprises a pair of bearing halves 6a and 6b and a hinge 6c as shown in FIGS. 5 and 8, and a hinge 6c is provided between the bearing halves 6a and 6b.
Is provided. That is, the bearing half 6a is directly and integrally connected to the lid 2, and the bearing half 6a is provided with the bearing half 6b via the hinge 6c. The bearing halves 6a and 6b are each provided with a bearing recess 26 having a semicircular shape. The bearing half 6a is provided with a locking projection 7, and the bearing half 6b
A locking hole 8 is provided in the bearing half 6b so that the locking projection 7 locks when it is placed on the bearing half 6a. The locking projections 7 include a main locking projection 7a located at the center in the width direction of the bearing half 6a and auxiliary locking projections 7b located on both sides. Main locking projection 7
a is provided with a main locking edge 27a.
Is provided with an auxiliary locking edge 27b, and the main locking edge 27a and the auxiliary locking edge 27b are orthogonal to each other. The locking holes 8 also have a main locking hole 8a located at the center and auxiliary locking holes 8b positioned at both sides.
The main locking projection 8a is locked in the main locking hole 8a, and the auxiliary locking projection 7b is locked in the auxiliary locking hole 8b. The main locking hole 8a is provided with a main locked edge 28a which can be locked to the main locking edge 27a, and the auxiliary locking hole 8b has an auxiliary locked edge which can be locked to the auxiliary locking edge 27b. An edge 28b is provided, and the main locked edge 28a and the auxiliary locked edge 28b are orthogonal to each other.

The overlapping projections 25 provided so as to protrude from the other end of the lid 2 have a substantially semicircular shape. In this embodiment, a plurality of overlapping projections 25 are arranged at regular intervals in the longitudinal direction. 4 in this example). A substantially semicircular overlapping recess 30 is provided adjacent to each of the overlapping projecting pieces 25 so that the overlapping projecting pieces 25 of the adjacent lid 2 can be overlapped. At the center of the upper surface of the lid 2, a rectangular label attaching concave portion 31 is provided, and the finger attaching concave portion 32 is provided at four positions around the label attaching concave portion 31.

[0012] When the two lids 2 openably mounted kicking the upper opening of the container body 1 is performed as follows.
With the bearing halves 6a and 6b of the bearing 6 of the lid 2 open, as shown in FIG.
7B, the bearing portion 6 is inserted between the notch 4 and the rotating shaft 5 as shown in FIG. 7B, and in this state, the hinge portion 6c with respect to the bearing half 6a. The bearing half 6b is bent and the bearing half 6b is superimposed on the bearing half 6a so as to sandwich the rotary shaft 5, and in this state, as shown in FIG. And a main locking hole 8a and a auxiliary locking hole 8b in which the auxiliary locking projection 7b is used as the locking hole 8.
The main locking edge 27a and the auxiliary locking edge 27b are locked to the main locked edge 28a and the auxiliary locked edge 28b.
In this manner, the pair of lids 2 is rotatably attached to the upper edge of the container body 1 so that the pair of lids 2 can be opened and closed. The bearing portion 6 can be easily rotatably attached to the rotating shaft 5 provided integrally with the shaft, so that it is not necessary to separately attach a pin as in the related art, so that the assembling property can be improved. In addition, since no metal parts are used at all, unlike the case where a separate pin is used, the entire container with a lid is formed of a synthetic resin, which facilitates recycling and reuse. When the pair of bearing halves 6a and 6b are overlapped as described above, the main locking projection 7a and the auxiliary locking projection 7b are locked in the main locking hole 8a and the auxiliary locking hole 8b. , 6b are firmly bonded. At this time, the main locking edge 27a and the main locked edge 28
a and the auxiliary locking edge 27b and the auxiliary locked edge 28b are locked, but since the locking directions are perpendicular to each other, it is necessary to ensure that the locking is not released by any external force. Can be locked.

The lidded containers constructed as described above can be stacked so that the lower part of the upper lidded container is inserted into the lower lidded container with the lid 2 opened. Here, in the present invention, the rotating shaft 5 whose both ends are integrally connected from both side surfaces of the notch 4 is provided.
The diameter of the both ends is a large-diameter large-diameter shaft portion 5a, and the diameter of the central portion is a small-diameter shaft portion 5b smaller than the large-diameter shaft portion 5a. At the time of opening and closing, even if a large load that breaks the rotating shaft 5 is applied to the rotating shaft 5, the large-diameter shaft portion 5a at both ends of the rotating shaft 5 does not break, and the small-diameter shaft portion at the center portion is not broken. It will break at 5b. As described above, even if the rotating shaft 5 is broken by an excessive load, both ends of the rotating shaft 5 remain without breaking as shown in FIG. The large-diameter shaft portions 5a at both end portions can surely be pivotally supported and rotatably supported, and the stable rotation of the lid 2 can be continued.

Here, as shown in FIG. 10A, a thick portion 6d having an inner diameter smaller than both sides is provided at the center of the inner peripheral portion of the bearing portion 6, and the thick portion 6d portion is provided. As a result, the small-diameter shaft portion 5b at the center of the rotating shaft 5 is fitted to the small-diameter shaft portion 5b at the center of the rotating shaft 5, and both ends of the thick portion 6d are connected to the rotating shaft 5
At the both ends of the large-diameter shaft portion 5a. As described above, since both ends of the thick portion 6d of the bearing portion 6 are in close proximity to the large-diameter portions at both ends of the rotating shaft 5, the bearing portion 6 is positioned with respect to the rotating shaft 5 by an arrow in FIG. It is possible to prevent lateral displacement in the direction.

FIG. 11 shows another embodiment of the rotating shaft 5 according to the present invention. This embodiment is an example in which a step between the large-diameter shaft portion 5a and the small-diameter shaft portion 5b is an inclined surface 5d. FIG. 12 shows still another embodiment of the rotating shaft 5 according to the present invention. In this embodiment, the outer surface is a tapered surface 5e so that the diameter of the large-diameter shaft portion 5a decreases gradually from the base portion side to the small-diameter shaft portion 5b side, and thus the outer surface of the large-diameter shaft portion 5a is tapered. Face 5
e, the tapered surface 5 e is
In a state in which is fitted, and serves to move the bearing portion 6 to the center portion of the rotating shaft 5. In the embodiment shown in the accompanying drawings, an example is shown in which the bearing 6 is formed integrally with the lid 2. However, the bearing 6 is separated from the lid 2, and the bearing 6 is attached to the lid 2 by any attaching means. It is also possible to do so.

[0016]

According to the first aspect of the present invention, the lid is rotatable with respect to the container body by the shaft supporting means.
In the pivot structure of the container lid attached to the container, the pivot means
Is arranged so that it is installed in the cutout provided in the container body
As well as integrated from both sides of the notch
The rotating shaft and the lid are provided integrally and are rotatable about the rotating shaft.
And a bearing part to be fitted on the both sides of the notch
The diameter of both ends of the rotating shaft integrated with the part is large.
And the central part has a small diameter, so rotate the lid to open and close
When, if, even when a large load, such as to break the rotary shaft is applied to the rotation axis, the small diameter portion of the central portion of the rotary shaft without breakage both ends of the rotary shaft aggressively to break So that even if the axis of rotation breaks,
Since both ends of the rotating shaft remain unbroken, both sides of the bearing are securely supported at the large-diameter portions of the remaining two ends of the rotating shaft, and the stable rotation of the rotating body continues. Monodea that can be
In addition, the bearing part is a pair of bearing halves and a pair of bearing halves.
And one of the bearing halves.
The lid is opened and closed on the container body because the body is integrally connected to the lid
When mounting freely, open a pair of bearing halves of the bearing part
In the state, the bearing part corresponds to the notch, and the notch and rotation
Insert the bearing between the shaft and bend at the hinge to rotate
A pair of bearing halves are placed one on top of the other
Can be attached to improve the ease of assembly.
Gap between both sides of the notch and the bearing
Formed so that the bearing is smooth with respect to the rotating shaft
Is to rotate.

According to the second aspect of the present invention, in addition to the effects of the first aspect, the inner diameter of the central portion of the inner peripheral portion of the bearing portion is smaller than that of both sides. A thick portion is provided, and the thick portion is fitted on the small-diameter shaft portion at the center of the rotating shaft, and both ends of the thick portion are closely opposed to side ends of the large-diameter shaft portion at both ends of the rotating shaft. Therefore, it is possible to reliably prevent the bearing portion from being laterally displaced with respect to the rotating shaft with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a lid of a container with a lid according to an embodiment of the present invention is opened.

FIG. 2 is a perspective view showing a state where the lid is closed.

3A is a plan view of the same, and FIG. 3B is a front view of the same.

FIG. 4 is a plan view showing the container main body of the above.

FIG. 5 is a perspective view of a portion where a bearing portion of the lid is extended.

FIG. 6A is a perspective view showing a rotary shaft part of the above.
(B) is a top view of the same.

FIGS. 7 (a), (b) and (c) are explanatory views illustrating the order in which the bearings are mounted on the rotary shaft of the above.

8A is a cross-sectional view of the same bearing member before assembly, and FIG. 8B is a cross-sectional view of the same bearing assembly.

FIG. 9A is a cross-sectional view of a shaft support portion of the above.
FIG. 2B is a cross-sectional view showing a state in which both sides of the bearing portion are rotatably fitted to the large-diameter shaft portion in a state where the small-diameter shaft portion of the rotary shaft portion is broken.

FIG. 10 (a) is a perspective view of another embodiment of the bearing of the present invention, and FIG. 10 (b) is a cross-sectional view of the same bearing fitted to a rotary shaft.

FIG. 11 is a plan view of another embodiment of the rotating shaft of the present invention.

FIG. 12 is a plan view of another embodiment of the rotating shaft of the present invention.

[Explanation of symbols]

B Supporting means 1 Container body 2 Lid 4 Notch 5 Rotary shaft 6 Bearing 6a Bearing half 6b Bearing half 6c Hinge 6d Thick section

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16C 11/04-11/10 B65D 43/16

Claims (2)

(57) [Claims] 1. A cover for a container body by a pivotal support means.
The pivotal structure of the container lid to which the
The supporting means is installed in the cutout provided in the container body.
And are integrated from both sides of the notch
The rotation shaft connected to the
And a bearing portion rotatably fitted to the shaft.
Diameter at both ends of the rotating shaft integrated with both sides of the notch
Has a large diameter and a central portion has a small diameter.
The part is a pair of bearing halves and a hinge provided between the pair of bearing halves.
And one bearing half is integrally connected to the lid.
A gap is formed between both sides of the notch and the bearing.
A pivot structure for the lid of the container, characterized by being made . 2. A thick portion having an inner diameter smaller than both side portions is provided at a center portion of an inner peripheral portion of the bearing portion, and the thick portion is fitted to a small diameter shaft portion at a center portion of the rotating shaft. 2. A container supporting structure for a container lid according to claim 1, wherein both ends of the thick portion are made to closely approach side ends of the large-diameter shaft portion at both ends of the rotating shaft.