JP2004345662A - Door structure of resin-made box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door structure of a resin-made box capable of obtaining stable formation and reducing the lowering of a door 5 in one of its sides. <P>SOLUTION: The door structure of a resin-made box has the door 5 equipped with ribs 7 at least inside upper and lower folds 6 provided to cover an opening 3 from the exterior of a body 2. When the door 5 is closed, the door 5 is guided to a correct position along an end of a water drainage 4 of the body 2 by the ribs 7. Thus the door 5 is prevented from lowering on one of its sides. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides various types of devices having an opening on the front surface of a main body, forming a drain portion in a substantially U-shaped cross section on the periphery of the opening, and covering the opening with a door that can be opened and closed by a rotating operation. The present invention relates to a door structure of a resin box for storing electric equipment and the like.
[0002]
[Prior art]
Since the conventional resin box 31 is used both indoors and outdoors, a draining structure in which the door 32 is covered on the main body 33 to prevent rainwater from entering even in a small amount, particularly when used outdoors, is generally used. The main body 33 has a shape in which the peripheral edge of the front opening 34 is turned outward in a substantially U-shaped cross section, and the door 32 has an end bent so as to cover the front opening 34 of the main body 33 as well as the folded portion 35 (for example, non- See Patent Document 1.).
[0003]
[Non-patent document 1]
Kawamura Catalog Box and Board Parts, Revised on March 2, 1997, p. 286
[0004]
[Problems to be solved by the invention]
However, the door structure of the resin box in the above-mentioned conventional technology has a door formed by bending the peripheral portion so as to cover the main body. Therefore, when the door is enlarged, a substantially central portion of the bent portion of the door is inward. When the door is warped and the door is closed, the bent portion hits the opening of the main body, and the door may be difficult to close or may not close. Also, depending on the weight of the door, the opposite side may fall down with the hinge side as a fulcrum, which may impair the aesthetic appearance.
[0005]
[Means for Solving the Problems]
Therefore, the present invention aims to obtain a stable molding and reduce the downward movement of the door, and the structure is such that the door has at least a vertically bent portion provided to cover the opening from the outside of the main body. A rib is provided inside, and when the door is closed, it is guided by the rib.
[0006]
Further, the rib provided in the bent portion of the door is formed in a triangular shape so as to be higher toward the back of the door.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
In the door structure of the resin box according to the present invention, the peripheral edge of the front opening of the main body is bent to form a drain portion, and the door is a cover type that covers the main body so that rainwater does not enter even when installed outdoors. . Ribs are provided at the upper and lower bent portions of the door at positions where they contact the ends of the main body. The door provided with the rib can suppress the bending of the bent portion. Also, when the door is particularly large, the door may fall due to its own weight.However, the rib provided on the door corrects the trajectory of the door when the door is opened and closed, thereby suppressing the fall. .
[0008]
In addition, a rib is formed in a triangular shape that is higher toward the back of the door, so that the opening and closing of the door can be smoothly performed and the one side of the door can be suppressed.
[0009]
【Example】
An embodiment of a door structure of a resin box according to the present invention will be described with reference to the accompanying drawings of FIGS.
[0010]
The resin box 1 has an opening 3 on the front surface of the main body 2, and the periphery of the opening 3 is folded back to form a drain portion 4 in order to prevent penetration of rainwater or the like. The opening 3 is covered by a door 5 that can be opened and closed by a rotation operation. The door 5 has a bent portion 6 at an end so as to cover the main body 2 from the outside.
[0011]
Ribs 7 are formed in the upper and lower bent portions 6 of the door 5. By providing the ribs 7, warpage of the bent portion 6 of the door 5, which tends to occur on the door 5 where the ribs 7 are not provided, is suppressed, so that stable molding of the door 5 is obtained.
[0012]
When the door 5 is opened and closed, the ribs 7 of the door 5 operate while regulating the end of the draining portion 4 of the main body 2, thereby preventing the door 5 from dropping.
[0013]
【The invention's effect】
As described above, in the door structure of the resin box according to the present invention, the door is provided with a rib at least inside the vertically bent portion provided to cover the opening from the outside of the main body, and when the door is closed, the door is closed. Is guided by the ribs, so that the door can be prevented from falling down. Further, since the ribs are provided, the warpage of the door is suppressed, and stable molding can be obtained.
[0014]
In addition, since the rib provided on the bent part of the door is formed in a triangular shape so as to be higher toward the back of the door, the rib provided on the door regulates the drain end of the main body when opening and closing the door. It operates while preventing the door from dropping.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a door structure of a resin box according to the present invention.
FIG. 2 is a sectional view showing a door structure of the resin box according to the present invention.
FIG. 3 is a perspective view showing a door structure of a resin box in the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Resin box 2 Main body 3 Opening 4 Drainer 5 Door 6 Bending part 7 Rib

Claims (2)

Various types of electrical equipment having an opening in the front surface of the main body, a draining portion formed by bending the opening periphery at a substantially U-shaped cross section, and covering the opening with a door that can be opened and closed by a rotating operation. In a door structure of a resin box for storing etc., the door is provided with a rib at least inside a vertically bent portion provided for covering the opening from the outside of the main body, and when closing the door, A door structure of a resin box, which is guided by ribs. The resin-made box according to claim 1, wherein in the door structure of the resin box, a rib provided at a bent portion of the door is formed in a triangular shape so as to be higher toward the back of the door. Box door structure.

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