JP2009011052A - Enclosed switchboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an enclosed switchboard having waterproof function between a unit door and a body of the switchboard and charging the unit door in accordance with the size of a unit chamber to be housed. <P>SOLUTION: The enclosed switchboard 1 comprises a switchboard body 2 having unit chambers 3 (3a, 3b, 3c, 3d), a single door 11 having an opening 11a extending vertically to face the unit chambers 3a, 3b, 3c, 3d, and a unit door 12 arranged at the opening 11a of the single door 11 in accordance with the unit chambers 3a, 3b, 3c, 3d, respectively, and secured by means of a threaded rod 21 and a nut 22. The unit door 12 has a door body 12a, an indication window 18, a packing arranging portion 12b formed integrally at the upper end of the door body 12a, and a packing 15 arranged at the packing arranging portion 12b. The packing 15 is clamped by the front side at the packing arranging portion 12b of one unit door 12 and the backside at the door body 12a of other unit door 12 located thereabove. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a closed switchboard having a plurality of unit chambers arranged in the vertical direction inside.

A conventional closed switchboard includes a box-shaped switchboard main body, a shelf board that can be positioned in a plurality of stages within the switchboard main body, and a plurality of unit chambers that are formed in multiple stages above and below the shelf board. I have. Each unit room houses a control unit for controlling a plurality of electric motors to be controlled. Unit doors corresponding to the unit chambers are rotatably attached to the front surfaces of the unit chambers of the switchboard body. With this configuration, even if the unit device to be stored is changed, the shelf board can be adjusted up and down in accordance with the size of the unit device to change it to the desired height of the unit chamber. Moreover, it can change to the unit door corresponding to the magnitude | size of a unit chamber with the change of the magnitude | size of a unit chamber (for example, refer patent document 1).
JP 2001-197621 A

In an installation place such as a factory, water may fall on the closed switchboard from above due to an abnormality in water pipes above the closed switchboard or a malfunction of the sprinkler.
However, since conventional closed switchboards are basically installed indoors, waterproofing functions such as caulking with caulking agents and seals with rubber packing are provided between the unit door and switchboard body. Not.

  The present invention has been made in view of the above circumstances, and its purpose is to provide waterproofing between the unit door and the switchboard body while the unit door can be changed according to the size of the unit room to be stored. It is to provide a closed switchboard that can be easily performed.

  The closed switchboard of the present invention has a box shape with an opening formed on the front surface, and has a switchboard body having a plurality of unit chambers arranged in the vertical direction inside, and the opening of the switchboard body is rotated to open and close it. A single door having an opening portion extending in the vertical direction so as to face the plurality of unit chambers, and disposed in correspondence with the plurality of unit chambers in the opening portion of the single door, A plurality of unit doors attached via a fixing member, and the unit door includes a rectangular door main body, a display window provided on the door main body, and an upper end of the door main body. A packing arrangement portion that is integrally formed and has a step shape so as to be directed rearward and extend upward, and a packing arranged in the packing arrangement portion, the packing being a packing arrangement portion of the one unit door Front and other units above it It is characterized by the being held between the door body portion back.

According to the present invention, the closed switchboard includes a plurality of unit doors arranged corresponding to the plurality of unit chambers at the opening of the single door, so that the unit door can be changed by changing the size of the unit chamber. If it becomes necessary to replace the unit door, it can be dealt with by changing the unit door having a different height.
Since the packing arranged in the packing arrangement part is configured to be sandwiched between the front surface of the packing arrangement part of one unit door and the rear surface of the door main body part of the other unit door located above, the water from above Even if it gets down, waterproofing between the unit door and the switchboard body can be done with a simple configuration.

Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 8.
2 and 3 show the appearance of the closed switchboard 1 according to the present embodiment. The closed switchboard 1 has a box-shaped switchboard main body 2 having an opening 2a formed on the front surface. As shown in FIGS. 1 and 3, a plurality of, for example, four unit chambers 3 (for example, four units chambers 3) arranged in the vertical direction are arranged inside the switchboard body 2 by a plurality of, for example, four shelf boards 2b, 2c, 2d, 2e. Unit chambers 3a, 3b, 3c, 3d). Although not shown, the shelf boards 2b, 2c, 2d, and 2e can be moved and adjusted in the vertical direction, and the height dimensions of the unit chambers 3a, 3b, 3c, and 3d can be arbitrarily changed.

  In each of the unit chambers 3a, 3b, 3c, and 3d, as shown in FIG. 1, control units 4, 5, 6, and 7 are accommodated correspondingly. The control units 4, 5, 6, and 7 control a plurality of electric motors that are not shown. Here, the sizes of the control units 4, 5, 6, and 7 differ depending on the type and number of control functions corresponding to the motor to be controlled. In the present embodiment, the control unit 6 is described as being larger than the other control units 4, 5, and 7, for example, about twice as large as the control units 4, 5, and 7. Therefore, the shelf plates 2b, 2c, 2d, and 2e are adjusted by moving the shelf plates 2b, 2c, 2d, and 2e in the vertical direction so that the unit chamber 3c in which the control unit 6 is accommodated is larger than the other unit chambers 3a, 3b, and 3d. Display units 4a, 5a, 6a, and 7a are provided at the lower front portions of the control units 4, 5, 6, and 7, respectively.

  As shown in FIGS. 1 to 3, the single door 11 can be rotated in the front-rear direction around the hinge portion (not shown) to open and close the opening 2 a at the opening 2 a of the switchboard body 2. Is provided. As shown in FIGS. 1 to 4, the single door 11 has an opening 11a that extends in the vertical direction so as to face the unit chambers 3a, 3b, 3c, and 3d. Further, the single door 11 is formed with a handle portion 11b which is located on the opposite side of the hinge portion (for example, the right side in FIG. 2) and is recessed rearward.

  As shown in FIG. 1, a unit door 12 corresponding to the unit chamber 3a, a unit door 12 corresponding to the unit chamber 3b, and a unit door corresponding to the unit chamber 3c (as shown in FIG. A unit door 12 and a unit door 13) and a unit door 12 corresponding to the unit chamber 3d are arranged. Since the control unit 6 is larger than the other control units 4, 5, 7, the unit door 12 and the unit door 13 constitute one unit door. A unit door 14 is disposed at the lowermost part of the opening 11 a of the single door 11.

  As shown in FIGS. 1, 4, and 7, the unit door 12 includes a rectangular door body 12a having a size corresponding to one unit chamber 3 (for example, the unit chambers 3a, 3b, and 3d) and a packing arrangement portion 12b. And have. The packing arrangement portion 12b is formed integrally with the upper end portion of the door main body portion 12a, and has a step shape so as to be directed rearward and extend upward. A packing having a waterproof function, for example, a rubber packing 15, is disposed on the packing arrangement portion 12b, and the packing 15 is bonded and fixed to the front surface of the packing arrangement portion 12b with an adhesive (not shown). The packing 15 has a rectangular plate shape, and the lateral width is substantially the same as the lateral width of the door main body 12 a of the unit door 12. Further, the packing 15 bonded to the packing disposing portion 12b has a dimension such that its front surface protrudes slightly forward from the front surface of the door main body portion 12a.

  As shown in FIGS. 6 and 7, two insertion holes 12 c are formed in the vertical direction in the vicinity of the left and right ends of the door body 12 a of the unit door 12 (a total of four locations for the unit door 12 as a whole). Between the pair of insertion holes 12c, 12c at the lower part of the door main body 12a of the unit door 12, a rectangular shape having a size corresponding to the display portions 4a, 5a, 6a, 7a of the control units 4, 5, 6, 7 The hole 12d is formed.

  A frame-shaped packing 16 whose outer shape is rectangular is bonded and fixed to the back surface of the unit door 12 with an adhesive (not shown). The frame packing 16 has an opening 16a surrounding the hole 12d. The frame-shaped packing 16 is made of the same rubber as the packing having a waterproof function, for example, the packing 15. A pair of insertion holes 16b and 16b whose positions and sizes coincide with the insertion holes 12c and 12c are formed near the left and right ends of the frame packing 16.

  On the back side of the frame packing 16, a transparent plate having the same outer shape as the frame packing 16, for example, an acrylic plate 17 is disposed. Near the left and right ends of the acrylic plate 17, a pair of insertion holes 17 a and 17 a whose positions and sizes coincide with the insertion holes 12 c and 12 c (16 b and 16 b) are formed.

  A display window 18 is configured by the hole 12 d of the unit door 12, the frame packing 16, and the acrylic plate 17. As a result, the operation of the units 4, 5, 6 and 7 accommodated in the closed switchboard 1 can be confirmed from the display window 18 through the display surfaces 4a, 5a, 6a and 7a of the units 4, 5, 6 and 7. It becomes possible to see and do.

  The unit door 13 has substantially the same shape (including the same height dimension) as the unit door 12, and as shown in FIGS. 1 to 5, a door main body portion 13a corresponding to the door main body portion 12a, A packing arrangement portion 13b corresponding to the packing arrangement portion 12b, and an insertion hole 13d corresponding to the insertion hole 12c is formed at the same position and size. A packing 15 is bonded and fixed to the front surface of the packing arrangement portion 13b. However, the unit door 13 is not provided with the display window 18.

  As shown in FIGS. 1 to 6 and 8, the unit door 14 includes a door main body portion 14a corresponding to the door main body portion 12a and a packing arrangement portion 14b corresponding to the packing arrangement portion 12b. The door main body portion 14a is about half of the dimension in the height direction of the door main body portion 12a of the unit door 12. A packing 15 is arranged on the front surface of the packing arrangement portion 14b. The unit door 14 is formed with a pair of insertion holes 14c in the vicinity of both left and right end portions of the door main body portion 14a. A hanging portion 14d is formed at the lower end portion between the insertion holes 14c, 14c of the door main body portion 14a. The hanging portion 14d is formed integrally with the door main body portion 14a and has a stepped shape so as to be directed forward and extend downward. As shown in FIG. 1, the lower edge portion 14d of the single door 11 has a lower edge portion. It arrange | positions so that it may contact | abut on the front surface. The unit door 14 is not provided with the display window 18.

  The unit doors 12, 13, and 14 are fixed by fixing members each including a screw rod 21 and a nut 22 that is screwed into the screw rod 21. As shown in FIGS. 5 and 6, the screw rod 21 has a round bar shape processed into a male screw of a bolt, one end of which is fixed to the back surface of the single door 11 by welding or the like, and the other end is rearward. It extends to. As shown in FIGS. 3 and 4, ten pairs of screw rods 21 are arranged at equal intervals vertically on the left and right sides of the opening 11a on the back side of the single door 11, and the unit doors 12, 13, The 14 insertion holes 12c, 13c, and 14c are relatively inserted. That is, each unit door 12 (unit door 13) is fixed to the single door 11 with two pairs (four places) of screw rods 21 and nuts 22. Further, the frame packing 16 and the acrylic plate 17 are fixed to the single door 11 together with the door main body portion 12 a by a screw rod 21 and a nut 22 inserted into the insertion hole 12 c below the unit door 12. The unit door 14 is fixed to the single door 11 with a pair (two places) of screw rods 21 and nuts 22 positioned at the lowermost position.

Next, the procedure for attaching the unit doors 12, 13, and 14 to the single door 11 will be described.
First, the shelf boards 2b, 2b, 2d, 2e of the switchboard body 2 are moved in the vertical direction to adjust to the unit chambers 3a, 3b, 3c, 3d corresponding to the sizes of the control units 4, 5, 6, 7.
Then, the hanging part 14d of the unit door 14 is arranged and fixed so as to be located in front of the opening part 11a of the single door 11. Thereby, waterproofing from the lower part of the opening part 11a of the single door 11 is attained.

  Next, the unit door 12 corresponding to the unit chamber 3d is fixed immediately above the unit door 14. Then, the packing 15 arrange | positioned at the unit door 14 will be in the state clamped by the packing arrangement | positioning part 14b front surface of the unit door 14, and the door main-body part 12a rear surface of the unit door 12 located in this upper direction. Accordingly, the closed switchboard 1 can be waterproofed by the sandwiched packing 15.

  Subsequently, the unit doors (unit door 12 and unit door 13) corresponding to the unit chamber 3c are fixed immediately above the unit door 12 corresponding to the unit chamber 3d. At this time, since the display unit 6a is located at the lower front portion of the unit 6, the unit door 12 is disposed on the lower side, and the unit door 13 is disposed thereon.

  Thereby, it arrange | positions at this unit door 12 with the packing arrangement | positioning part 12b front surface of the unit door 12 corresponding to the unit chamber 3d, and the door main-body part 12a back surface of the unit door 12 corresponding to the unit chamber 3c located above this. The packing 15 is sandwiched. Moreover, the packing 15 arrange | positioned at the unit door 12 will be in the state clamped by the packing arrangement | positioning part 12b front surface of the unit door 12, and the door main-body part 13a rear surface of the unit door 13 located above this. Thus, each packing 15 is clamped and the waterproof switchboard 1 can be waterproofed.

  Similarly to the above, the unit door 12 corresponding to the unit chamber 3b and the unit door 12 corresponding to the unit chamber 3a are also fixed to the single door 11 from the bottom in this order. Then, the packing arrange | positioned at the unit door 13 by the packing arrangement | positioning part 13b front surface of the unit door 13 corresponding to the unit chamber 3c, and the door main-body part 12a rear surface of the unit door 12 corresponding to the unit chamber 3b located above this. 15 will be clamped. Further, the unit door corresponding to the unit chamber 3b is composed of the front surface of the packing arrangement portion 12b of the unit door 12 corresponding to the unit chamber 3b and the rear surface of the door main body portion 12a of the unit door 12 corresponding to the unit chamber 3a located above. The packing 15 arrange | positioned at 12 will be in the state clamped. Further, the front surface of the packing arrangement portion 12b of the unit door 12 corresponding to the unit chamber 3a and the peripheral portion of the upper back surface of the opening 11a of the single door 11 are arranged on the unit door 12 corresponding to the unit chamber 3a. The packing 15 is sandwiched. Thereby, the closed switchboard 1 can be waterproofed by the sandwiched packings 15.

Next, the effect of the closed switchboard 1 of this embodiment will be described.
Since the closed switchboard 1 of the present embodiment includes the unit doors 12 arranged corresponding to the unit chambers 3 (unit chambers 3a, 3b, 3c, 3d) in the opening 11a of the single door 11, respectively. When the unit door 12 needs to be replaced due to the change in the size of the unit chambers 3a, 3b, 3c, 3d, it can be dealt with by changing the unit door 12 having a different height.

  In this case, when one of the unit chambers 3 is twice as large as the other unit chambers 3, the unit door 13 and the unit door 12 that are not provided with the display window 18 are combined to form a unit unit. It can easily accommodate the size of the room.

  And the packing 15 arrange | positioned at the packing arrangement | positioning part 12b (packing arrangement | positioning part 13b, 14b) is the packing arrangement | positioning part 12b (packing arrangement | positioning part 13b, 14b) front surface of the one unit door 12 (unit door 13, 14), Since it is configured to be sandwiched between the rear surface of the door main body 12a (door main body 13a) of another unit door 12 (unit door 13) positioned above, an abnormality in the water pipe above the closed switchboard 1 or an error in the sprinkler By operation, even if water falls from above, waterproofing between the unit doors 12, 13, 14 and the switchboard body 2 can be performed with a simple configuration.

Further, since the unit door 14 is provided with the hanging portion 14d, waterproofing from the lower portion of the opening 11a of the single door 11 is possible.
In the present embodiment, the unit door 12 having the display window 18 basically closes the opening 11a of the single door 11 in front of the unit chamber 3, but the control units 4, 5, 6, The extra space that cannot be closed only by the unit door 12 due to the size of 7 can be closed by the unit door 13 that does not have the display window 18, and the lowermost remainder of the opening 11 a of the single door 11. The space can be closed with the unit door 14.

Next, the closed switchboard 1 of the second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same part as the said 1st Embodiment, and the detailed description is abbreviate | omitted.
The closed switchboard 1 of the second embodiment shown in FIG. 9 is different from the first embodiment in the fixing member. That is, the fixing member of the second embodiment includes the screw 31 and the nut 22.

  The single door 11 is formed with an insertion hole 11c at a position corresponding to the screw rod 21 of the first embodiment. Then, the screw 31 is inserted into the insertion hole 11c from the front side of the single door 11, and further inserted into the insertion hole 12c of the unit door 12 (the insertion hole 13c of the unit door 13 or the insertion hole 14c of the unit door 14). The nut 22 is screwed with the screw 31 from the back side of the single door 11, and the unit door 12 (unit doors 13 and 14) is fixed.

The closed switchboard 1 of the second embodiment can also exhibit the same effects as the closed switchboard 1 of the first embodiment.
Moreover, since the welding operation of the screw rod 21 is not required, the closed switchboard 1 can be easily assembled.

Next, a closed switchboard 1 according to a third embodiment of the present invention will be described with reference to FIGS. 10 to 13. In addition, the same code | symbol is attached | subjected to the same part as the said 1st Embodiment, and the detailed description is abbreviate | omitted.
The closed switchboard 1 of the third embodiment shown in FIGS. 10 to 13 is different from the first embodiment in the fixing member. That is, the fixing member of the third embodiment is composed of a pair of guide rails 41 and 41 and a screw 42. In the present embodiment, the insertion holes 12c, 13c, 14c of the unit doors 12, 13, 14 are not formed, the insertion hole 16b of the frame packing 16 and the insertion hole 17b of the acrylic plate 17 are not formed.

The pair of guide rails 41, 41 are positioned on both the left and right sides of the single door 11 with the open mouth portion 11 a sandwiched between them, and extend along the height direction of the open mouth portion 11 a.
As shown in FIGS. 11 and 12, the pair of guide rails 41 and 41 includes a flat side portion 41a and 41a that are stacked on the back surface of the single door 11, and an end portion of the side portions 41a and 41a. The direction in which the upright portions 41b and 41b extending rearward from the end portion located on the approaching side (opening port portion 11a side) and the rearward end portions of the end portions of the upright portions 41b and 41b approach each other. It is comprised from the back surface parts 41c and 41c extended to.

The side portions 41a and 41a are fixed to the back surface of the single door 11 by welding.
The standing portions 41b and 41b are separated from each other by the same dimension as the width direction of the unit doors 12, 13, and 14, and the length dimension of the standing portions 41b and 41b standing rearward is the unit door. It is larger than the thickness dimension of 12, 13, and 14. Of the end portions of the back surface portions 41c and 41c, the space between the end portions 41d and 41d approaching each other corresponds to the lateral width of the open mouth portion 11a of the single door 11. The unit doors 12, 13, 14 are housed and fitted between the standing doors 41 b, 41 b between the single door 11 and the back surfaces 41 c, 41 c of the guide rails 41, 41. Become.

  Female screw portions 41e are formed on the back surface portions 41c and 41c of the pair of guide rails 41 and 41, respectively, at 11 positions along the height direction of the single door 11, and the guide rails 41 and 41e are provided at equal intervals. A screw 42 is screwed from the rear side of 41. The upper portion of the unit door 12 and the unit doors 13 and 14 are pressed and fixed to the back surface of the single door 11 with screws 42. The acrylic plate 17 located at the lower part of the unit door 12 is pressed and fixed to the back surface of the frame packing 16 with screws 42, and the frame packing 16 is attached to the back surface of the unit door 12 with the pressed acrylic plate 17. The lower portion of the unit door 12 is pressed and fixed to the back surface of the single door 11 by the pressed frame packing 16.

Next, a procedure for fitting the unit doors 12, 13, and 14 into the opening 11a of the single door 11 will be described. First, the unit door 14 is fitted between the pair of guide rails 41, 41, arranged at the lowermost part of the opening 11 a of the single door 11, and pressed and fixed with a screw 42. Next, the unit door 12 corresponding to the unit chamber 3d is fixed thereon. Subsequently, the unit door (unit doors 12 and 13) corresponding to the unit chamber 3c, the unit door 12 corresponding to the unit chamber 3b, and the unit door 12 corresponding to the unit chamber 3a are fixed in order.
The closed switchboard 1 of the third embodiment can also exhibit the same effects as the closed switchboard 1 of the first embodiment.

Next, a closed switchboard 1 according to a fourth embodiment of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same part as the said 1st Embodiment, and the detailed description is abbreviate | omitted.
In the unit door 12 of the closed switchboard 1 of the fourth embodiment shown in FIGS. 14 and 15, the door body 12 a is fitted into the opening 11 a of the single door 11, the front of the single door 11 and the unit door 12. It is the structure which the front surface of becomes flush. Packing arrangement portions 12e and 12e are formed on both left and right ends of the door main body 12a of the unit door 12, respectively. The packing arrangement portions 12e and 12e are formed integrally with the door main body portion 12a. One packing arrangement portion 12e has a step shape so as to be directed backward and extend leftward, and the other packing arrangement portion 12e has a step shape so as to be directed rearward and extend rightward. Two insertion holes 12c and 12c are formed in the packing arrangement portions 12e and 12e of the unit door 12, respectively. Packings 51, 51 are arranged on the front surface of the packing arrangement portions 12e, 12e and fixed with an adhesive.

  The packings 51 and 51 are made of the same material as that of the packing 15, but are adjusted to dimensions arranged in the packing arrangement portions 12 e and 12 e. Further, a frame packing 16 is bonded and fixed to the back side of the unit door 12 with an adhesive, and an acrylic plate 17 is bonded and fixed to the back side of the frame packing 16 with an adhesive.

As shown in FIG. 15, the screw rod 21 of the present embodiment is welded away from the opening 11 a by the thickness of the packing 15 on both the left and right sides of the opening 11 a of the single door 11.
Although not shown, the unit door 13 and the unit door 14 (see FIGS. 1 and 8) are also provided with packing arrangement portions and the packing on the left and right sides of the door main body portions 13a and 14a, similarly to the unit door 12 of the present embodiment. It has the packing arrange | positioned at an arrangement | positioning part.

Next, a method for attaching the unit door 12 will be described with reference to FIG.
The corresponding screw rod 21 of the single door 11 is inserted into each insertion hole 12 c of the unit door 12. Then, the nut 22 is screwed onto the threaded rod 21 protruding from the back surface of the unit door 12 and tightened. In this case, the front of the single door 11 and the front of the unit door 12 are fastened and fixed until they are flush with each other.

Thereby, since the packing 51 arrange | positioned at the packing arrangement | positioning part 12e was made into the structure clamped by the packing arrangement | positioning part 12e front surface of the one unit door 12, and the single door 11 back surface, water has come down from the left-right direction. However, waterproofing between the unit door 12 and the switchboard body 2 can be performed with a simple configuration. Since the unit doors 13 and 14 have the same configuration, waterproofing between the unit doors 13 and 14 and the switchboard body 2 can be performed with a simple configuration even when water falls from the left and right directions.
Further, since the front surface of the single door 11 and the front surface of the unit door 12 (unit doors 13 and 14) are flush with each other, the appearance is good.

The present invention is not limited to the embodiment described above and shown in the drawings, and the following modifications and expansions are possible.
Since the unit doors of the first to fourth embodiments are provided corresponding to the unit chambers, when the unit chamber is arbitrarily increased or decreased, the length of the unit door is increased or decreased corresponding to the increase or decrease. Alternatively, it may be configured as a unitary door with a plurality of unit doors combined.

The frame packings of the first to third embodiments may be fixed only by a fixing member without using an adhesive.
Instead of the screw rod of the fourth embodiment, a configuration using the screw of the second embodiment may be used.
A washer may be provided on the fixing member of the first to fourth embodiments.
In 1st thru | or 4th embodiment, although the unit door was fitted in the opening part of the single door in order in the downward direction, the unit door may be inserted in order from the upper side.
The material, number, and the like of the above-described component parts can be changed as appropriate.

Sectional drawing cut | disconnected along the AA in FIG. 2 with the closed switchboard of the 1st Embodiment of this invention. Perspective view of closed switchboard Perspective view of a closed switchboard showing a single door open Rear view of single door Sectional drawing cut | disconnected along the BB line in FIG. Sectional drawing cut | disconnected along CC line in FIG. Unit door exploded view Exploded view of the unit door located at the bottom of the opening of the single door FIG. 5 equivalent view showing the closed switchboard of the second embodiment of the present invention FIG. 4 equivalent view showing a closed switchboard of the third embodiment of the present invention Sectional drawing cut | disconnected along the DD line | wire in FIG. Sectional drawing cut | disconnected along the EE line | wire in FIG. Sectional drawing cut | disconnected along the FF line in FIG. FIG. 7 equivalent view showing a unit door of the fourth embodiment of the present invention 6 equivalent diagram

Explanation of symbols

  In the drawings, 1 is a closed switchboard, 2 is a switchboard body, 2a is an opening, 3, 3a, 3b, 3c and 3d are unit rooms, 4, 5, 6 and 7 are units, 11 is a single door, and 11a is open. Mouth, 12, 13, and 14 are unit doors, 12a, 13a, and 14a are door main bodies, 12b, 13b, and 14b are packing arrangement parts, 12d is a hole, 15 is packing, 16 is frame packing, and 17 is acrylic A plate (transparent plate), 18 display window portion, 21 a screw rod (fixing member), 22 a nut (fixing member), 31, 42 a screw (fixing member), and 41 a guide rail (fixing member).

Claims (5)

A distribution board body having a box shape with an opening formed on the front surface and having a plurality of unit chambers arranged in the vertical direction inside,
A single door having an opening that is pivotally provided to open and close the opening of the switchboard main body and extends vertically so as to face the plurality of unit chambers;
A plurality of unit doors are arranged corresponding to the plurality of unit chambers in the opening part of the single door, respectively, and are attached via fixing members,
The unit door is formed integrally with a rectangular door main body, a display window provided in the door main body, and an upper end of the door main body, and is stepped so as to extend rearward and upward. And a packing arrangement portion arranged in the packing arrangement portion,
The closed switchboard, wherein the packing is sandwiched between the front surface of the packing arrangement portion of the one unit door and the rear surface of the door body portion of the other unit door located above. The fixing member is
One end is attached to the back side of the single door, and the other end is a screw rod extending rearward,
The closed switchboard according to claim 1, comprising a nut screwed onto the screw rod. The fixing member is
A screw inserted into the door from the front side,
The closed switchboard according to claim 1, comprising a nut screwed onto the screw from the back side of the single door. The fixing member is
A pair of guide rails provided on the back surface of the single door along the opening, and into which a plurality of unit doors are fitted;
2. The closed switchboard according to claim 1, wherein the closed switchboard is configured by screws inserted into the guide rails from the rear side thereof and pressing the unit door against the back surface of the single door. The display window is
A hole formed in the unit door;
A frame-shaped packing located on the back side of the unit door and surrounding the hole;
It is composed of a transparent plate arranged on the back side of this frame-shaped packing,
The closed switchboard according to any one of claims 1 to 4, wherein the frame-shaped packing and the transparent plate of the display window are fixed by a fixing member that fixes the unit door.

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