JPH0776357A - Opening/shutting device for cooler box or the like - Google Patents

Abstract

PURPOSE:To ensure smooth operation of one-sided opening and shutting of a cover for a container such as a cooler box or the like, for which an opeing/ shutting device that enables the cover to be attached to and detached from the container main body and is available for one-sided opening and shutting is provided. CONSTITUTION:A holding groove 4, extending along the edge on a mouth, and a receiving part 6, with a side opposite to the direction of opening of the holding groove 4 serving as an engaging face, are fixed either to the main body 1 or the cover body 2 of a container or the like. Operating tabs 8, each equipped with engaging pivots 7 for engagement with the holding groove 4, are rotatively hinged to either one of the main body or the cover body. Furthermore, holding hooks 9 that are engaged with the engaging face 5 of the receiving part 6 when the engaging pivots 7 are fitted into the holding groove 4 are formed to the operating tabs 8, and thereby the engaging pivots 7 can be held certainly to the holding groove 4, enabling the cover body 2 to be opened smoothly without staggering in the case of one-sided opening.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an opening / closing device for detachably locking a lid to a body of a cooler box, a tackle box for fishing, a refrigerator, or other containers.

[0002]

2. Description of the Related Art As a means for enabling a lid body to be removably fitted and locked to a body such as a container and to pivotally support the lid body in a one-sided opened state with respect to the body body, Japanese Utility Model Laid-Open No. 1-86674. As seen in Japanese Utility Model Laid-Open No. 5-8080, an operating lever is provided which has an engaging shaft along the mouth of the main body, a locking groove for engaging the engaging shaft with the lid, and which is pivotally supported by the lid. There is known an opening / closing device in which a claw portion formed at the tip of the operation lever is biased by a spring means at the other end of the operation lever to an engagement shaft engaged in the engagement groove.

[0003]

However, in the above method, the engaging shaft, which acts as a support shaft when the lid is opened and closed in one-sided state, is loose in the locking groove, and the opening and closing operation is not performed smoothly. At the same time, a spring means must be provided on the operation lever, which causes a problem that the structure is complicated. SUMMARY OF THE INVENTION It is an object of the present invention to provide an opening / closing device that solves the above-mentioned problems and allows the lid body to be opened and closed smoothly and surely with a simple structure.

[0004]

In order to achieve the above object, the present invention provides a locking groove and an opening of the locking groove along the rim of either the main body of the container or the like or the lid thereof. A receiving portion having an engagement surface on the side opposite to the direction is provided, and an operation piece rotatably supported and an engagement shaft that fits in the locking groove are provided on the other side, and the operation piece is engaged with the engagement piece. The gist of the present invention is to form a locking claw that engages with the engagement surface of the receiving portion when the shaft is fitted in the locking groove.

The receiving portion having the engaging groove and the engaging surface is provided on the main body, and the operating piece and the engaging shaft are provided on the lid body, and the receiving portion having the engaging groove and the engaging surface is provided on the lid body. The engagement shaft and the operation piece may be provided on the main body, respectively. Further, it is preferable that the engagement shaft and the rotation shaft that rotatably supports the operation piece are used in common, but they can be formed separately. In this case, the engagement shaft is rotatably supported by the rotation shaft. It can also be provided on one piece or on the lid.

[0006]

The lid is attached to the main body by fitting the engaging shafts into the engaging grooves and engaging the engaging claws of the receiving claws of the operation piece on both sides of the main body such as the container. The lid can be locked, and when the locking claws of the operation piece on one or both sides of the main body of the container or the like are disengaged from the engaging surface of the receiving part and the engaging shaft is disengaged from the locking groove, the lid body is attached to the main body. On the other hand, it can be pivotally supported on one side in a one-sided open state, or can be opened in a fully open state.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.
A container such as a cooler box is formed of a main body 1 and a lid body 2 thereof, and cutout recesses 3 are formed in the upper portions of both long side surfaces of the main body 1 along the direction of the rim, and the cutout recessed portions 3 are upwardly moved upward. The locking groove 4 that is open toward the front and the receiving portion 6 that has the engaging surface 5 formed on the lower surface are integrally fixed. On the other hand, on both lower portions of both sides of the lid body 2, there are engaging and rotating shafts 7 which can be fitted into the engaging grooves 4 via supporting pieces 2'and 2'and which rotatably support an operating piece 8. An engaging claw 9 is integrally formed on the lower side of the operation piece 8 for engaging with the engaging surface 5 of the receiving portion 6 when the engaging and rotating shaft 7 is fitted in the engaging groove 4. There is. In the figure, 10 is a support plate provided with a locking groove 4 attached to the cutout recess 3 and a receiving portion 6, and 11 is a heat insulating material for the main body 1 and the lid 2.

Since the embodiment of the present invention is constructed as described above, when the lid 2 is fitted to the main body 1 as shown in FIG. The engaging claw 9 is engaged with the engaging surface 5 of the receiving portion 6, and the engaging and rotating shaft 7 is engaged with the engaging groove 4 by this engaging action.
It is held without rattling while being pressed in the depth direction. Further, when the lid body 2 is detached from the main body 1, the operation piece 8 is rotated to disengage the locking claw 9 from the engagement surface 5 to separate the engagement / rotation shaft 7 from the locking groove 4. In this case, when one of the engaging and rotating shafts 7 of the lid 2 is separated from the locking groove 4, the other engaging and rotating shaft 7 of the lid 2 is placed in the locking groove 4 as shown in FIG. It is possible to support the shaft 2 in a pivotally supported state and open and close it in a single-open state. In the above embodiment, the locking groove 4 and the receiving portion 6 are provided in the main body 1, and the operation piece 8 is provided in the lid body 2. However, the locking groove 4 and the receiving portion 6 are provided in the lid body 2, and the operating piece 8 is operated. The piece 8 can also be provided on the body 1.

In the above-mentioned embodiment, the engaging shaft also serves as the rotating shaft for supporting the operating piece. In FIGS. 6 to 8, the engaging shaft and the rotating shaft are formed separately. Here is an example. That is, an engaging shaft 71 that engages with the locking groove 4 is provided on the operation piece 8 and a rotary shaft 72 is provided on the lid 2 so as to be located on the same axis as the engaging shaft 71 and on one side thereof. The operation piece 8 is rotatably supported by a shaft.

In the embodiment shown in FIGS. 9 to 12, the operating piece 8 is rotatably supported on the lid body 2 by a turning shaft 72, and the engaging shaft 71 is attached to the lid body 2 as in the above-described embodiment. Provided with the locking groove 4 of the main body 1
The engaging surface 5 of the receiving portion 6 is provided on the lower side portion of the engaging groove 4, and the engaging claw 9 is provided on the operation piece 8 so as to engage with the engaging surface 5. It is a thing.

[0011]

According to the present invention, in the opening / closing device in which the lid can be detachably fitted and locked to the body of a container or the like and can be opened and closed even in the one-sided opened state, the engaging shaft is the engaging surface of the locking claw. Since it is securely supported in the locking groove by the engaging action with respect to the main body, the lid can be smoothly and easily opened and closed with respect to the main body in the one-opened state, and there is no need to provide spring means. The configuration can be simplified and it can be easily installed.

Next, in the present invention, when the rotating shaft for rotatably supporting the operating piece and the engaging shaft for fitting in the locking groove are used as both, the opening / closing and supporting functions of the lid can be securely performed. At the same time, the opening and closing function can be further simplified.

Further, since the rotating shaft for rotatably supporting the operation piece and the engaging shaft for fitting in the locking groove are provided on the coaxial line, the engaging groove for fitting the engaging groove to the engaging shaft is provided. The stopping operation and the engaging operation with respect to the engaging surface of the locking claw can be performed smoothly and easily, and the opening / closing operation of the lid can be stably and reliably performed.

Further, in the present invention, when the locking groove and the receiving portion having the engaging surface are integrally formed vertically, the structure of the opening / closing mechanism can be simplified and the supporting function of the lid can be surely performed. .

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an exploded perspective view of the main part.

FIG. 3 is a vertical sectional front view when the same fitting and locking is performed.

FIG. 4 is a vertical sectional front view when the lid is opened.

FIG. 5 is a front view in vertical section when the lid is opened with the same opening.

FIG. 6 is a side view of the second embodiment of the present invention.

FIG. 7 is a front view of the same section.

FIG. 8 is an exploded perspective view of the same.

FIG. 9 is a side view of the third embodiment of the present invention.

FIG. 10 is an exploded perspective view of the same.

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid body 3 Notch concave part 4 Locking groove 5 Engaging surface 6 Receiving part 7 Engaging / rotating shaft 71 Engaging shaft 72 Rotating shaft 8 Operating piece 9 Locking claw

Claims (6)

[Claims] 1. A locking groove and a receiving portion having an engaging surface on the side opposite to the opening direction of the locking groove are provided along the rim of one of the body of the container and the lid thereof. On the other side, an operation piece rotatably supported and an engagement shaft that fits in the locking groove are provided.
An opening / closing device for a cooler box or the like, characterized in that a locking claw that engages with an engaging surface of the receiving portion is formed on the operation piece when the engaging shaft is fitted in the locking groove. 2. The opening / closing device for a cooler box or the like according to claim 1, wherein the engagement shaft also serves as a rotation shaft that rotatably supports the operation piece. 3. The opening / closing device for a cooler box or the like according to claim 1, wherein an engaging shaft provided coaxially with a rotating shaft that rotatably supports the operating piece is provided on the operating piece. 4. The opening / closing device for a cooler box or the like according to claim 1, wherein a rotating shaft that rotatably supports the operation piece and an engaging shaft are provided on the lid so as to be coaxial with each other. 5. The opening / closing device for a cooler box or the like according to claim 1, wherein the locking groove and the receiving portion having the engaging surface are integrally formed in the vertical direction. 6. The opening / closing device for a cooler box or the like according to claim 1, wherein the locking groove and the receiving portion having the engaging surface are formed separately by shifting left and right.