JP2005150295A - Waterproof structure of box with double swing door for housing electric apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the waterproof structure of a box with a double swing door for housing an electric apparatus which achieves a more advanced waterproofness than the conventional one. <P>SOLUTION: In a first configuration, packings 15 and 16 extended vertically are formed in abutting portions at the ends of the left door 11 and the right door 12 of the box for housing an electric apparatus, respectively, and a contact face 17 between the right and left packings is made an inclined plane inclined in the right and left direction with respect to the main body of the box to allow the right and left doors to stick closely to each other when they are closed. In a second configuration, a throating portion extended vertically is formed in the abutting portion at the end of either the left door 11 or the right door 12. The upper edge of the throating portion is made an inclined plane which is higher at the door face side, and a packing with an inclined plane abutted against the inclined plane of the throating portion is formed on the main body side of the box to completely seal the upper edges of the abutting portions at the ends of the right and left doors by the packing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a waterproof structure for an electrical equipment storage box that is installed outdoors and has double doors.

  As a waterproof structure for an electrical equipment storage box having a double door installed outdoors, as shown in Patent Document 1, a U-shaped draining part is bent at the upper part and the abutting part of the door. Is known. Such a waterproof structure prevents the rainwater from flowing into the box body by inserting the insertion portion provided in the other door into the draining portion having a U-shaped cross section provided in the door on one side. It has a structure.

  However, such a conventional waterproof structure reliably prevents rainwater splashes from entering the inside of the box body because there is a gap at the upper end of the front end contact portion of the door when the left and right doors are closed. It was not possible to achieve high waterproofness. In addition, there is a problem that the structure is complicated and the manufacturing cost is high.

As the waterproof structure of the electrical equipment storage box having other double doors, as shown in FIGS. There is also known a waterproof structure in which the packing 3 is attached to the surface of the draining metal fitting 2 on the box body side, and the packing 5 is attached to the end of the other door 4. However, in this waterproof structure, it is inevitable that a triangular gap 6 as shown in FIG. 13 is formed in the vertical direction due to the thickness of the packing 5 at the portion where the left and right doors 1 and 4 overlap. For this reason, there is a possibility that rainwater may enter from the upper end of the gap 6 and a high level of waterproofness cannot be achieved.
JP 2003-106069 A

  The present invention solves the above-described conventional problems and provides a waterproof structure for an electrical equipment storage box having a double door that can achieve a higher level of waterproofing than the conventional one while having a relatively simple structure. It was made to do.

  The first invention made to solve the above-described problem is that a packing extending in the vertical direction is provided at the tip contact portion between the left door and the right door of the electrical equipment storage box, and the left and right packings are connected to each other. The contact surface is an inclined surface inclined in the left-right direction with respect to the box body.

  In addition, the second invention made to solve the same problem is provided with a draining portion extending in the vertical direction at the tip contact portion of either the left door or the right door of the electrical equipment storage box, The upper end of the draining portion has a high inclined surface on the door surface side, and a packing having an inclined surface that comes into contact with the inclined surface is provided on the box body side.

  According to the first aspect of the present invention, the contact surface between the left and right packings provided at the tip contact portion between the left door and the right door of the electrical equipment storage box is an inclined surface. The inclined surfaces closely contact each other, and a vertical gap as shown in FIG. 13 does not occur at the upper end of the tip contact portion between the left door and the right door. For this reason, a draining metal fitting is not required, and a high level of waterproofness can be achieved.

  According to the second invention, the upper end of the vertical draining portion provided at the tip contact portion of either the left door or the right door of the electrical equipment storage box is an inclined surface, and the box main body side is provided with this. Since the packing having the inclined surface to be contacted is provided, the inclined surface at the upper end of the draining portion closely contacts the packing when the door is closed, and the upper end of the tip contact portion between the left door and the right door is shown in FIG. No vertical gap as shown in FIG. For this reason, high waterproofness can be achieved.

Preferred embodiments of each invention will be described below with reference to the drawings.
1 to 5 are diagrams for explaining an embodiment of the first invention. However, all of FIGS. 1 to 4 are illustrated with the door horizontal. FIG. 5 is a horizontal sectional view.

  In these drawings, 11 is a left door provided on the front surface of the electric equipment storage box, and 12 is a right door. These doors are pivotally connected by hinges 14 to side frames 13 on both sides of the front surface of the box body. A packing 15 extending in the vertical direction is provided on the back surface side (box body side) of the front end contact portion of the left door 11, and similarly, on the back surface side of the front end contact portion of the right door 12 in the vertical direction. An extending packing 16 is provided. And the contact surface 17 of these packings 15 and 16 is an inclined surface inclined in the left-right direction with respect to the front surface of a box main body, as shown in FIG. In this embodiment, the inclination angle is about 45 °, but can be set as appropriate within a range of about 30 ° to 60 °.

  The upper end surface of the door is a horizontal surface 18 bent inward, and covers the front upper frame 19 of the box body. A gap 20 is formed between the horizontal surface 18 and the upper ends of the packings 15 and 16. Also, two metal fittings 22 having a vertical plane 21 as clearly shown in FIG. 2 are attached to the lower surface of the central portion of the front upper frame 19 of the box body, and the rod rod of the locking device (not shown) is the metal fitting. It is structured to be caught on 22 vertical planes 21.

  For this reason, when the left and right doors 11 and 12 are closed, the contact surfaces 17 of the left and right packings 15 and 16 exactly overlap each other as shown in FIG. For this reason, when the left and right doors 11 and 12 are closed, a conventional vertical gap is not formed, and high waterproofness can be achieved. Moreover, according to the first aspect of the present invention, the draining metal fitting is not necessary, and the manufacturing cost can be reduced.

  6-10 is a figure explaining embodiment of 2nd invention. 6 to 9 are also shown in a state where the door is horizontal, as in FIGS. FIG. 10 is a sectional view in the vertical direction.

  In the second embodiment of the present invention, a box-shaped draining portion 30 as clearly shown in FIG. 9 is provided in the vertical direction at the tip contact portion of the left door 11. The box-shaped draining portion 30 has an open surface on the door side. On the other hand, a bent piece 31 that is bent at a right angle is formed at the tip contact portion of the right door 12 on the opposite side, and the bent piece 31 opens to the box-shaped draining portion 30 when the door is closed. It is supposed to go inside. The draining portion 30 may be provided at the tip contact portion of either the left door 11 or the right door 12, and may be provided on the right door 12 as opposed to this embodiment.

  Moreover, the upper end surface of the box-shaped draining part 30 is the inclined surface 32 with a high door surface side, as shown in FIG. 9, FIG. A packing 34 having a downward inclined surface 33 that contacts the inclined surface 32 of the draining portion 30 is attached to the lower surface of the central portion of the front upper frame 19 of the box body by a metal fitting 35. The upper end surface of the door is a horizontal plane 18 bent inward, and a gap 36 is formed between the horizontal plane 18 and the upper end surface of the draining portion 30, and the packing 34 is closed when the door is closed. Enters the gap 36. Reference numeral 37 denotes a packing disposed horizontally above the draining portion 30. In addition, a rod bar of a locking device (not shown) is hooked on the vertical plane 38 of the metal fitting 35.

  If the left and right doors configured as described above are closed, the bent piece 31 at the tip contact portion of the right door 12 enters the opening of the draining portion 30 provided at the tip contact portion of the left door 11, and The inclined surface 32 at the upper end of the draining part 30 is in close contact with the downward inclined surface 33 of the packing 34 as shown in FIG. For this reason, when the left and right doors 11 and 12 are closed, the upper ends of the tip contact portions of the left and right doors are completely sealed by the packing 34, and a vertical gap as in the prior art is not formed. Can achieve a high degree of waterproofness. Moreover, the construction of the second invention is also relatively simple, so that the manufacturing cost does not increase.

  As described above, the waterproof structures of the first and second inventions of the present application are both simple in structure and can achieve a high degree of waterproofness. It exhibits an excellent effect in increasing

It is a perspective view showing the embodiment of the 1st invention in the state where the right door was removed. It is an expansion perspective view of the part enclosed with the circle | round | yen of FIG. It is a perspective view showing an embodiment of the 1st invention. FIG. 4 is an enlarged perspective view of a portion surrounded by a circle in FIG. 3. It is a horizontal sectional view which shows the close_contact | adherence state of packing of a right-and-left door. It is a perspective view which shows embodiment of 2nd invention. FIG. 7 is an enlarged perspective view of a portion surrounded by a circle in FIG. 6. It is a perspective view which shows embodiment of 2nd invention in the state which removed the right door. It is an expansion perspective view of the part enclosed with the circle | round | yen in FIG. It is a vertical sectional view showing the state where the door is closed. It is a perspective view which shows a prior art example. It is an expansion perspective view of the part enclosed with the circle | round | yen in FIG. It is a horizontal sectional view of a draining metal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door in conventional technology 2 Drainage metal fitting 3 Packing 4 The other door 5 Packing 6 Gap 11 Left door 12 in this invention Right door 13 Side frame 14 of box main body Hinge 15 Packing 16 Packing 17 Contact surface 18 Horizontal surface 19 On front surface of box main body Frame 20 Gap 21 Vertical plane 22 Metal fitting 30 Drain part 31 Bending piece 32 Inclined surface 33 Downward inclined surface 34 Packing 35 Metal fitting 36 Gap 37 Packing 38 Vertical plane

Claims (2)

  Provided with packings extending in the vertical direction at the tip abutting portions of the left door and the right door of the electrical equipment storage box, the contact surfaces of these left and right packings are inclined surfaces inclined in the left and right directions with respect to the box body A waterproof structure for electrical equipment storage boxes having double doors.   At the tip contact portion of either the left door or the right door of the electrical equipment storage box, a draining portion extending in the vertical direction is provided, and the upper end of the draining portion has a high inclined surface on the door surface side, and the box body side A waterproof structure for an electrical equipment storage box having a double door, wherein a packing having an inclined surface that comes into contact with the inclined surface is provided.

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