JP6594076B2 - Switchgear - Google Patents

Description

  The present invention relates to an opening / closing device that opens and closes an opening / closing body such as a shutter curtain.

  2. Description of the Related Art Conventionally, an opening / closing device with improved maintainability for a control unit or the like in a shutter device or an overhead door is known (for example, see Patent Document 1). In this opening / closing apparatus, the opening / closing machine has the drive shaft side disposed in the vicinity of one end of the winding body. The opening / closing machine is fixed with the counter drive shaft side directed toward the other end of the winding body. An inspection port and a closing member that closes the inspection port so as to be openable are provided on the lower surface of the storage unit. The control unit is fixed to an upper part or a lower part of the switch with a work surface having at least a signal line connection part for control facing the counter drive shaft side. A working space for performing work on the work surface is secured in the storage portion on the side opposite to the drive shaft from the work surface of the control unit. The inspection port is opened in a range including the switch and the work space.

Japanese Patent Laying-Open No. 2015-81494

However, in the above-described conventional switchgear, since the control unit is fixed to the switchgear (motor unit), it is difficult to carry and work if it is made large after installation, and conversely, if it is made small, the usability is poor. There was a problem. Usually, the construction and maintenance of the shutter device are performed from an inspection port provided on the lower surface of the opening / closing body housing part, which is the upper part of the building opening. The work surface of the control unit is the work through the inspection port from the bottom, while the horizontal surface (vertical surface) is the operation surface and is located in the back direction (upward) from the inspection port. Therefore, there was a problem that workability was very bad.
In addition, the wiring that connects the motor unit and the control unit and the various wirings that are connected to the control unit do not have a clear storage space or bundling, rely on the skill level of construction on site, and if the quality is poor, There was a risk of disconnection due to being caught on an opening / closing body or leakage of electricity due to rainwater. In addition, the method of bundling is left up to the time of construction, and the use of an adhesive tape has a problem that the work is complicated and the maintenance is difficult.

  The present invention has been made in view of the above circumstances, and its purpose is to make it easy to work in each work, etc. during packaging, transportation, and installation, and to make it easy to use, such as workability and maintainability during and after installation. An object of the present invention is to provide a switchgear that can be used.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
Opening and closing device 11 of the present invention is provided inside the opening and closing member housing portion 19 provided near the edge on the building opening 15, the motor unit 37 for opening and closing member 17 winding feeding drives for opening and closing the building opening 15 When,
A control unit 39 disposed above the motor unit 37 and connected to the motor unit 37 via a control wiring 53 to control driving of the motor unit 37;
Provided across the motor unit 37 and the control unit 39, the control unit 39 is vertically offset from the motor unit 37, and the control unit 39 is offset in a direction along the winding center axis of the opening / closing body 17. And connecting means for disposing a part of the lower surface of the control unit 39 exposed downward,
It includes a.

  In the switchgear 11, the control unit 39 is disposed at a position overlapping the motor unit 37 in the vertical direction during packing, transportation, and installation, and the dimension in the direction along the winding center axis is reduced. After the opening / closing device 11 is carried into the opening / closing body accommodating portion 19 and the motor portion 37 is fixed, the control portion 39 moves in a direction along the winding center axis of the opening / closing body 17 and is offset with respect to the motor portion 37. Placed in position. At this offset position, the control unit 39 is in a position where a part of the lower surface protrudes from the motor unit 37 and can be accessed from below.

The switchgear 11 according to claim 4 of the present invention is the switchgear 11 described above ,
The connecting means includes a rail groove 93 extending with the direction along the winding center axis as a sliding direction, and an engagement piece 91 engaged with the rail groove 93.
The opening / closing apparatus according to claim 5 of the present invention is characterized in that the connecting means has a connecting tool formed by a pair of side plate portions rising from the long side edge of the bottom plate and opened upward, and the pair of connecting tools. At the upper end of the side plate portion, there is the rail groove extending with the direction along the winding center axis as the sliding direction, and the rail groove engages with the rail groove on both sides of the work surface on the lower surface of the control unit. It has the above-mentioned engagement piece to do.

  In the opening / closing device 11, a rail groove 93 is provided in one of the motor unit 37 and the control unit 39, and the engaging piece 91 that engages with the rail groove 93 is either the motor unit 37 or the control unit 39. Is provided. As the rail groove 93 and the engagement piece 91 slide, the control unit 39 becomes slidable and can be expanded and contracted in the direction along the winding center axis together with the motor unit 37. The rail groove 93 can be easily obtained by forming a U-shaped bent portion on the side plate of the connecting means made of, for example, a sheet metal material. The engagement piece 91 can be easily obtained, for example, as a bowl-shaped portion formed on a parallel edge corresponding to the rail groove 93 on the lower surface of the control unit 39.

Closing device 11 according to a first aspect of the present invention, there is provided a closing device 11 of the above SL,
The control unit 39 includes a work surface 63 on a part of the lower surface that is detached from the motor unit 37 at the offset position.

  In the opening / closing device 11, the control unit 39 is offset with respect to the motor unit 37 in the direction along the winding center axis of the opening / closing body 17, and the control unit 39 is formed on a part of the lower surface removed from the motor unit 37. The work surface 63 is arranged. That is, the work surface 63 is covered and protected by being overlaid on the motor unit 37 during packaging, transportation, and installation. On the other hand, the work surface 63 is exposed by being arranged at a position offset in a direction along the winding central axis of the opening / closing body 17 such as sliding with respect to the motor unit 37 after the motor unit 37 is fixed. And can be operated. Since the opening / closing device 11 is disposed in the vicinity of the lower plate 45 of the opening / closing body accommodating portion 19, the opening / closing device 11 is accessed from an inspection port 57 provided in the lower plate 45. At this time, since the work surface 63 is disposed on the lower surface, the work surface 63 faces the inspection port 57 and can be easily accessed in the vicinity of the entrance of the inspection port 57. Because it is provided on a vertical surface as in the conventional device, it is not necessary to operate with the head or hand in the depths of the inspection port 57, making it easy to perform setup, adjustment after operation, maintenance, etc. become.

The switchgear 11 according to claim 2 of the present invention is the switchgear 11 described above ,
The connecting means includes a wiring accommodating portion 115 that penetrates in a direction along the winding central axis, and at least the control wiring 53 is accommodated in the wiring accommodating portion 115.

  In the opening / closing device 11, the control unit 39 is offset with respect to the motor unit 37 in the direction along the winding center axis of the opening / closing body 17. The connecting means disposed between the control unit 39 and the motor unit 37 is provided with a wiring housing unit 115 penetrating in a direction along the winding center axis. The control unit 39 and the motor unit 37 are connected by a control wiring 53. The control wiring 53 is accommodated in the wiring accommodating portion 115. The control wiring 53 is routed with a surplus length so that the movement of the control unit 39 to the offset position is not hindered. As a result, the control wiring 53 is accommodated inside the connecting means, and disconnection due to being caught by the opening / closing body 17 or leakage of electricity due to rainwater does not occur.

The switchgear 11 according to claim 3 of the present invention is the switchgear 11 described above ,
The connecting means includes a wiring holding part 121 that holds the on-site construction wiring 29 on the outer surface of the wiring accommodating part 115.

  In the switchgear 11, the on-site construction wiring 29 routed on site is held by a wiring holding part 121 provided on the outer surface of the connecting means. That is, it is possible to separate the wiring space that is connected at the factory and the wiring space that is connected at the site. Thereby, the control wiring 53 connected in advance at the factory can be stored and held inside the connecting means, and the on-site construction wiring 29 connected at the site can be stored and held respectively. Thereby, wiring is easy and easy to understand, workability and maintainability can be improved, and disconnection due to being caught on the opening / closing body 17 or leakage of electricity due to rainwater does not occur.

  According to the switchgear of the first aspect of the present invention, the controller is configured so that the motor unit and the control unit are arranged in a vertically overlapping position, and the motor unit and the controller are wound in the direction along the winding center axis. By being able to make two forms, the position offset with respect to the motor part, it can be made into a shape that expands and contracts as a whole as an opening and closing device, which makes it easy to make these operations compact when packing, transporting, installing In addition, after installation, a part of the lower surface of the control unit, which is a necessary surface, is greatly exposed to facilitate use.

According to the switchgear according to claim 4 or 5 of the present invention, the entire switchgear can be expanded and contracted in the direction along the winding center axis with a simple and inexpensive structure by the slide structure of the rail groove and the engagement piece. It can be.

According to the switchgear of the first aspect of the present invention, the work surface of the control unit is disposed on a part of the lower surface that is detached from the motor unit during and after installation, whereby the work surface is exposed. Since the work surface is disposed on the lower surface, the work surface is directed to the inspection port of the opening / closing body housing portion, and access is easily possible near the entrance of the inspection port. This makes it easier to adjust the control values and other settings during maintenance. In addition, the work surface is covered with a state of being overlaid on the motor unit during packaging, transportation, and installation, that is, protected.

According to the switchgear according to claim 2 of the present invention, the control wiring that connects the control section and the motor section can be accommodated in the wiring accommodation section provided in the connecting means. A disconnection or the like due to being caught on the opening / closing body or the like does not occur, and the control wiring can be easily discriminated and the maintainability can be improved.

According to the switchgear according to claim 3 of the present invention, it is possible to hold the on-site construction wiring by providing the wiring holding portion on the outer surface of the wiring housing portion of the connecting means, that is, the wiring space to be connected at the factory. And the wiring space to be connected on site can be separated. As a result, the control wiring that is pre-wired at the factory can be stored and held on the inside of the connecting means, and the on-site construction wiring that is connected on-site can be stored and held on the outside of the connecting means. Can be kept constant, workability and maintainability can be improved, and disconnection due to being caught on the opening / closing body or the like does not occur.

It is a front view of a shutter apparatus provided with the opening / closing apparatus which concerns on embodiment of this invention. It is a front view of the switchgear shown in FIG. It is a perspective view of the opening / closing apparatus provided in the opening / closing body accommodating part. It is a bottom view of a control part. It is a perspective view of the connector which comprises a connection means. It is a side view of an opening / closing device. It is a perspective view of the switchgear at the time of packing. It is a side view of the switchgear at the time of construction. It is a bottom view of the switchgear showing the time of connection of field construction wiring. It is a perspective view of a connector provided with the wiring holding part concerning a modification. It is a perspective view of the coupling tool provided with the wiring holding part which concerns on another modification.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a front view of a shutter device 13 including an opening / closing device 11 according to an embodiment of the present invention.
The opening / closing device 11 according to the present embodiment can be suitably used for a shutter device 13 installed in a building opening 15 such as a house, building, warehouse, factory, or commercial facility. In addition, the opening / closing device 11 can also be applied to an opening / closing body provided in a loading platform of a vehicle.

  In the shutter device 13, a shutter curtain 17 as an opening / closing body that opens and closes a building opening 15 is wound and fed out to an opening / closing body accommodating portion 19 disposed in the building housing. The opening / closing body accommodating portion 19 is provided in the vicinity of the upper edge of the building opening 15, for example, along the lintel. The shutter curtain 17 that moves up and down the building opening 15 is lifted and lowered by being guided by guide rails 23 fixed to the left and right (left and right in FIG. 1) wall portions 21. The opening / closing body accommodating portion 19 is fixed to the building frame by a pair of brackets 25 and has a winding shaft 27 and an opening / closing device 11. The switchgear 11 is connected to power supply wiring, which is field construction wiring 29, a plurality of sensor wirings 31, an operation switch wiring 33, and the like by field construction. The power supply wiring is connected to the commercial power supply from the building distribution board. The sensor wiring 31 is connected to, for example, an upper / lower limit switch, a sudden descent stop switch, a beam sensor, or the like. The operation switch wiring 33 is connected to the operation switch panel 35 attached to the wall portion 21.

FIG. 2 is a front view of the switchgear 11 shown in FIG.
The opening / closing apparatus 11 according to the present embodiment includes a motor unit 37, a control unit 39, and a connecting unit as main components. The opening / closing device 11 is fixed to either one of the pair of brackets 25 by right and left. The opening / closing device 11 is covered with an opening / closing body housing outer plate 43 and an opening / closing body housing lower plate 45 of the opening / closing body housing 19.

  The motor unit 37 has a substantially cylindrical shape in which the axial direction is a direction along the winding center axis of the shutter curtain 17. A shaft sprocket 47 (see FIG. 3) is fixed to one end side of the winding shaft 27 (right end side in FIG. 2). A drive shaft projects from one end side of the motor unit 37. A drive gear 49 (see FIG. 2) is fixed to the drive shaft. A driving force transmission chain 51 is stretched between the driving gear 49 and the shaft sprocket 47. Thereby, the winding shaft 27 is rotated forward and backward by the rotational driving force transmitted from the motor unit 37. In other words, the motor unit 37 is installed in the opening / closing body accommodating unit 19 and drives the shutter curtain 17 that opens and closes the building opening 15 to be wound and fed by the rotation of the winding shaft 27.

  The control unit 39 is disposed above the motor unit 37. The control unit 39 is connected to the motor unit 37 via the control wiring 53 and controls the driving of the motor unit 37. The control part 39 and the motor part 37 are connected by the control wiring 53 inserted in the inside of the coupling tool 41 mentioned later. Further, on-site construction wiring 29 such as power supply wiring, sensor wiring, operation switch wiring, and the like is connected to the control unit 39 by a connector.

FIG. 3 is a perspective view of the opening / closing device 11 provided in the opening / closing body accommodating portion 19.
The switchgear 11 is provided with a chain 55 as a manual hoisting tool at the time of power failure. The chain 55 is stored in a ready state via a metal fitting installed in the vicinity of the inspection port 57 provided in the lower plate 45 of the opening / closing body accommodating portion.

FIG. 4 is a bottom view of the control unit 39.
The control unit 39 is formed in a substantially rectangular parallelepiped shape. The control unit 39 is arranged above the motor unit 37 such that the longitudinal direction is along the axis of the motor unit 37. That is, the motor unit 37 and the control unit 39 are arranged such that the longitudinal direction is along the winding center axis of the shutter curtain 17. In the control unit 39, the breaker switch 61 of the power input breaker 59 is disposed on the other end side (left end side in FIG. 4).

  The control unit 39 is provided with a work surface 63 on a part of the lower surface removed from the motor unit 37 at a position offset from the motor unit 37 (position shown in FIG. 2). The work surface 63 includes an operation unit 65 and a connector connection unit 67. The operation unit 65 is provided with various switches such as a status display unit 69, a setting switch 71, and a dip switch 73. The connector connecting portion 67 is provided with various connectors such as a beam sensor input connector 75, an emergency switch input connector 77, and a sudden descent stop device input connector 79. Further, a motor connection portion 81 is disposed adjacent to the connector connection portion 67. Even when the control unit 39 is offset, the motor connection unit 81 does not come out of the motor unit 37 and is not exposed. The motor connection portion 81 is provided with various connectors such as a motor output connector 83, a thermal input connector 85, and a brake output connector 87. The motor connection portion 81 is connected to the control wiring 53 from the motor portion 37 by a connector. Further, a ground terminal 89 is provided on the lower surface of the control unit 39 on the opposite side of the work surface 63 with the motor connection unit 81 interposed therebetween. The ground terminal 89 is connected in advance to the ground wiring of the motor unit 37 at the factory.

  In addition, a pair of engaging pieces 91 are formed on the lower surface of the control unit 39 in a protruding shape on both sides of the work surface 63. These engaging pieces 91 constitute a connecting means together with a rail groove 93 described later, and engage with the rail groove 93. In addition, the engagement piece 91 is cut out by notches at a plurality of locations on the way.

FIG. 5 is a perspective view of a coupler constituting the coupling means.
In this embodiment, the connecting means includes a pair of engaging pieces 91 provided in the control unit 39 and a rail groove 93 that engages with the engaging piece 91, and a connecting device 41 including the rail groove 93. It consists of.
The connector 41 is provided across the motor unit 37 and the control unit 39. The coupling tool 41 is configured such that the rail groove 93 and the engagement piece 91 offset the control unit 39 in a position overlapping the motor unit 37 in the vertical direction and the control unit 39 in a direction along the winding center axis of the shutter curtain 17. The work surface 63, which is a part of the lower surface of the control unit 39, is disposed at a position where the work surface 63 is exposed downward.

  The connecting tool 41 is formed so that its longitudinal dimension is approximately half of the longitudinal dimension of the controller 39 (see FIG. 6). The connector 41 has a pair of rail grooves 93 extending in the sliding direction of the control unit 39 at the upper edge. The rail groove 93 is slidably engaged with a pair of engagement pieces 91 provided in the control unit 39. In the present specification, the front side in the sliding direction refers to the offset side. The connector 41 is formed such that a pair of side plate portions 97 stands up from the long side edge portion of the bottom plate 95 and the upper side is opened. The connector 41 is formed by processing a metal plate, for example. In addition, the connection tool 41 may be formed by molding a resin material. The rail groove 93 is formed as a U-shaped groove in which the upper ends of the pair of side plate portions 97 are opposed to each other. The bottom plate 95 is provided with a pair of motor fixing plates 99 protruding. The motor fixing plate 99 is fastened and fixed to the motor unit 37 with screws.

  A pair of screw fixing holes 101 are formed in the motor fixing plate 99. The screw fixing hole 101 is fixed to a connector fixing hole (not shown) formed in the motor unit 37 by a motor fixing screw 103 (see FIG. 6). The connector fixing hole is provided at a common position in the motor portions having other shapes and specifications. Therefore, the connector 41 can be fixed to all the motor units as a common member even when the motor unit 37 has a different standard, and the control unit 39 can be slidably attached. That is, the connector 41 has versatility.

  Each of the pair of engaging pieces 91 is inserted into the pair of rail grooves 93. The control unit 39 is slidable in the direction along the rail groove 93 with respect to the motor unit 37 via the connector 41 fixed to the motor unit 37. The rail groove 93 is provided with a slide restricting screw hole 105. As shown in FIG. 4, the pair of engaging pieces 91 of the control unit 39 are provided with a fixing notch 107 for packing and a fixing notch 109 for use from the power input breaker side.

  In the control unit 39, the slide control screw 111 (see FIG. 6) that is screwed into the slide control screw hole 105 in a state of being overlapped with the motor unit 37 at the time of packing is engaged with the notch 107 for fixing at the time of packing. The slide is regulated. When the control unit 39 is in use, the slide control screw 111 (see FIG. 8) screwed into the slide control screw hole 105 is engaged with the fixing notch 109 in use while being offset from the motor unit 37. The slide is regulated.

  The control unit 39 is provided with slide stopper pieces 113 (see FIG. 6) at both ends of the engaging piece 91 in the sliding direction. When the control unit 39 is slid further forward than the offset position, one slide stopper piece 113 (sliding direction rear end) abuts on the rail groove end portion and further sliding is restricted (state of FIG. 8). reference). Further, when the control unit 39 is further slid from the position overlapped with the motor unit 37 to the side opposite to the offset position, the other slide stopper piece 113 (sliding direction front end) comes into contact with the end of the rail groove and further beyond that. The slide is restricted (see the state in FIG. 6).

  In the present embodiment, the connector 41 includes a wiring housing portion 115 that penetrates in a direction along the winding center axis. The wiring housing 115 houses at least the control wiring 53 that connects the control unit 39 and the motor unit 37. The control wiring 53 is routed in advance in the factory before shipment to the site. The control wiring 53 allows the control unit 39 to slide to an offset position by having a surplus length. The connection tool 41 is provided with a ground wire connection hole 117 at an end of the control unit 39 on the advancing direction side. A ground terminal screw 119 (see FIG. 6) is screwed into the ground wire connection hole 117. Note that the connecting means according to the present invention may not include the wiring housing portion 115.

  The connector 41 has a plurality of wiring holding portions 121 that hold the on-site construction wiring 29 on the outer surface of the side plate portion 97 that is the outer surface of the wiring housing portion 115. The wiring holding part 121 is formed as a plurality of insertion holes 123 for the binding band 116, for example. The wiring holding part 121 may be a mounting hole for a clip (not shown) to which the electric wire bundled by the binding band 116 is fixed. This type of clip is provided with a leg portion having an elastic locking piece for fixing to a mounting plate. The wiring holding part 121 may be a round hole 125 in which the leg part is locked.

  There are many wirings, such as a control wiring 53 for connecting the control unit 39 and the motor unit 37, and an on-site construction wiring 29 for connecting the control unit 39 and various sensors. In addition, connecting a large number of wires together at the construction site is a work at a high place and is complicated. Therefore, stabilization of construction quality has been an issue. Therefore, in the switchgear 11 of the present invention, a function for distinguishing and accommodating these wires is added to the connector 41. In other words, the connector 41 includes a wiring accommodating portion 115 that accommodates the control wiring 53 on the inner side, and a wiring holding portion 121 that retains the site construction wiring 29 on the outer side.

FIG. 6 is a side view of the opening / closing device 11.
The switchgear 11 is packaged and shipped from the factory with the control unit 39 and the motor unit 37 being connected by the control wiring 53. As shown in FIG. 6, the opening / closing device 11 is arranged in a state where the motor unit 37 and the control unit 39 are stacked one above the other as shown in FIG. 6. The motor unit 37 and the control unit 39 have substantially the same longitudinal dimension. The opening / closing device 11 is shrunk compactly so as to be the same as the dimension in the longitudinal direction as a single unit during packaging. Thereby, it does not become an external shape which protrudes greatly in the vertical and horizontal length directions, and can be accommodated compactly by the substantially rectangular minimum packaging material 127.

FIG. 7 is a perspective view of the opening / closing device 11 during packing.
The switchgear 11 is unpacked from the packing material 127 after arrival at the construction site. The opening / closing device 11 is carried into the opening / closing body accommodating portion 19 in the state as shown in FIG. Thereby, the switchgear 11 can be easily operated at a high place while remaining in a compact state. In this state, in the switching device 11, the fixing substrate 129 of the motor unit 37 is bolted to the bracket 25.

FIG. 8 is a side view of the switchgear 11 during construction.
In the opening / closing device 11, the motor unit 37 is fixed, and after the support to the building skeleton side is completed via the bracket 25, the slide regulating screw 111 is unscrewed. The control unit 39 can slide within the slide range S with respect to the motor unit 37 via the connector 41 by removing the slide restricting screw 111. When the control unit 39 is slid at the site, the work surface 63 on the lower surface is offset from the motor unit 37 and exposed. In this state, the control unit 39 pulls out the control unit 39 which is the offset position by the slide control screw 111 screwed into the slide control screw hole 105 again being engaged with the notch 109 for fixing in use. It is fixed at the position.

FIG. 9 is a bottom view of the switchgear 11 showing when the site construction wiring 29 is connected.
The control unit 39 is arranged immediately above the inspection port by being offset with respect to the motor unit 37. In the vicinity of the work surface 63, various on-site construction wirings 29 held by the binding band 116 on the wiring holding part 121 are arranged. Therefore, in the switchgear 11, unlike the conventional switchgear, there is no need to enter the interior of the inspection port 57 to perform the connection work, and easy connection in the vicinity of the inspection port 57, that is, connectors of the control unit 39. Can be coupled to the connector of the on-site construction wiring 29.

Next, the operation of the above configuration will be described.
In the switchgear 11 according to the present embodiment, the control unit 39 is disposed at a position that overlaps with the motor unit 37 during packing, transportation, and installation, and the dimension in the direction along the winding center axis is reduced. After the opening / closing device 11 is carried into the opening / closing body accommodating portion 19 and the motor portion 37 is fixed, the control portion 39 moves in a direction along the winding center axis of the shutter curtain 17 and is offset with respect to the motor portion 37. Placed in position. At the offset position, the control unit 39 is in a position where the work surface 63 which is a part of the lower surface protrudes from the motor unit 37, and can be accessed from below such as operation and connection.

  In the opening / closing device 11, the rail groove 93 is provided in one of the motor unit 37 and the control unit 39, and the engagement piece 91 that engages with the rail groove 93 is provided in either the motor unit 37 or the control unit 39. Or the other. In the present embodiment, the rail groove 93 is provided in the connector 41 fixed to the motor unit 37, and the engagement piece 91 is provided in the control unit 39. When the rail groove 93 and the engagement piece 91 slide, the control unit 39 is slidable with respect to the motor unit 37 and can be expanded and contracted in the direction along the winding center axis. The rail groove 93 can be easily obtained by forming a U-shaped bent portion on the side plate of the connector 41 made of, for example, a sheet metal material. The engagement piece 91 can be easily obtained, for example, as a hook-shaped portion formed on a pair of parallel edges corresponding to the rail groove 93 on the lower surface of the control unit 39. As a result, the opening / closing device 11 can be expanded and contracted with a simple and inexpensive structure by the slide structure.

  Further, in the opening / closing device 11, the control unit 39 is slid with respect to the motor unit 37, and the work surface 63 of the control unit 39 is disposed on a part of the lower surface removed from the motor unit 37. That is, the work surface 63 is covered and protected by being overlaid on the motor unit 37 during packaging, transportation, and installation. On the other hand, the work surface 63 is exposed by being slid with respect to the motor unit 37 after the motor unit 37 is fixed to the bracket 25, and the work surface 63 can be operated. Since the opening / closing device 11 is disposed along the lower plate 45 of the opening / closing body accommodating portion 19, the opening / closing device 11 is accessed from an inspection port 57 provided on the lower plate 45 of the opening / closing body accommodating portion. At this time, since the work surface 63 is disposed on the lower surface, it can be easily accessed near the entrance of the inspection port 57. By being provided on the vertical surface as in the conventional device, it is not necessary to put the head deeply into the inspection port 57 and perform the operation, and the setting at the time of construction and the adjustment after the operation can be performed very easily. As a result, the opening / closing device 11 can easily adjust the setting operation to the control unit 39 at the time of installation and the control value at the time of maintenance. The motor connecting portion 81 is not exposed to the motor portion 37 even if the control portion 39 is offset, and is not exposed. That is, the motor connection portion 81 that is a location that has been pre-wired in the factory is not exposed during construction on site.

  In the opening / closing device 11, a wiring accommodating portion 115 that penetrates in the direction along the winding center axis is provided between the control portion 39 and the motor portion 37. The control unit 39 and the motor unit 37 are connected by a control wiring 53. The control wiring 53 is accommodated in the wiring accommodating portion 115. The control wiring 53 is routed with a surplus length so that the movement of the control unit 39 to the offset position is not hindered. As a result, the control wiring 53 is accommodated inside the connector 41, so that disconnection due to being caught on the shutter curtain 17 or the like, or leakage due to rainwater, etc. do not occur. As a result, the switchgear 11 can easily determine the control wiring 53 and improve the maintainability.

  Further, in the switchgear 11, the on-site construction wiring 29 that is routed on site is held by the wiring holding portion 121 provided on the outer surface of the side plate portion 97 of the connector 41. That is, the wiring space of the control wiring 53 connected at the factory can be divided from the wiring space of the on-site construction wiring 29 connected at the site. As a result, the control wiring 53 connected in advance at the factory can be stored inside the connector 41, and the on-site construction wiring 29 connected at the site can be stored outside the connector 41. As described above, in the switchgear 11, wiring is easy and easy to understand, and disconnection due to being caught on the shutter curtain 17 or leakage of electricity due to rainwater does not occur. As a result, the switchgear 11 can keep the quality of the on-site construction wiring 29 constant, and can improve the construction quality, workability, and maintainability.

Next, a modification of the above embodiment will be described.
FIG. 10 is a perspective view of a connector provided with a wiring holding part 131 according to a modification.
The connector 133 according to this modification includes a wiring holding part 131 different from the above on the side plate part 97. The wiring holding part 131 has a plurality of on-site construction wiring bundle pieces 135. The on-site construction wiring bundling piece 135 has flexibility and can hold the on-site construction wiring 29 along the side plate portion 97 by sandwiching the on-site construction wiring 29 in an open state and returning it to the original position. it can. That is, it can hold | maintain even if it does not use another members, such as a binding band, and the field construction wiring 29 can be bundled with few parts.

FIG. 11 is a perspective view of a connector provided with a wiring holding part 137 according to another modification.
The connector 139 according to this modification includes a wiring holding portion 137 different from the above in the side plate portion 97. The wiring holding part 137 has a plurality of binding band attaching parts 141. The binding band attaching portion 141 is formed by inserting a parallel slit in the side plate portion 97 and projecting a belt-like portion sandwiched between the pair of slits outward in an arch shape. Since this binding band attaching portion 141 has a space penetrating vertically between the side plate portion 97, the binding band 116 turned around the outer periphery of the on-site construction wiring 29 can be easily inserted and attached. Can be increased.

  In the above-described embodiment, the configuration in which the control unit 39 and the motor unit 37 are slid by the rail groove 93 and the engagement piece 91 has been described as an example. The controller 39 may be connected to the motor unit 37 so as to be displaceable to the offset position by a link mechanism or the like.

  In the above-described embodiment, the configuration in which the motor unit 37 is fixed to the bracket 25 has been described as an example. However, in the switchgear according to the present invention, on the contrary, the control unit 39 is fixed to the bracket 25, The motor unit 37 may be slid to the offset position with respect to the control unit 39.

  Furthermore, in the above-described embodiment, the configuration in which the control unit 39 is moved to the offset position by the coupling tool 41 has been described as an example. However, the switchgear according to the present invention omits the coupling tool 41, and the rail groove 93 and the engagement member. By providing the joining piece 91 directly on the control unit 39 and the motor unit 37, the control unit 39 may be slidable to the offset position.

  Therefore, according to the switchgear 11 according to the present embodiment, the entire switchgear can be expanded and contracted, so that it can be made compact at the time of packing, transporting, and installing, and can be easily operated. Part of the part can be greatly exposed for easy use.

11 ... Opening / closing device 15 ... Building opening 17 ... Opening / closing body (shutter curtain)
DESCRIPTION OF SYMBOLS 19 ... Opening and closing body accommodating part 29 ... Site construction wiring 37 ... Motor part 39 ... Control part 53 ... Control wiring 63 ... Work surface 91 ... Engagement piece 93 ... Rail groove 115 ... Wiring accommodating part 121 ... Wiring holding part

Claims (5)

A motor part installed in an opening / closing body housing part provided in the vicinity of the upper edge of the building opening, and winding up and driving the opening / closing body that opens and closes the building opening;
A control unit disposed above the motor unit and connected to the motor unit via a control wiring to control driving of the motor unit;
The control unit is provided across the motor unit and the control unit, and the control unit is vertically offset from the motor unit and the control unit is offset in a direction along the winding center axis of the opening / closing body. A connecting means arranged at a position where a part of the lower surface is exposed downward;
Equipped with,
The control unit includes a work surface on a part of the lower surface that is detached from the motor unit at the offset position . The switchgear according to claim 1 ,
The opening and closing device characterized in that the connecting means includes a wiring housing portion penetrating in a direction along the winding central axis, and at least the control wiring is housed in the wiring housing portion. The switchgear according to claim 2 , wherein
The opening and closing device characterized in that the connecting means has a wiring holding part for holding a field construction wiring on the outer surface of the wiring accommodating part. The switchgear according to claim 1, 2 or 3 ,
The connecting means includes a rail groove extending with the direction along the winding center axis as a sliding direction, and an engagement piece engaging with the rail groove. The switchgear according to claim 4, wherein
The connecting means has a connecting tool formed by a pair of side plate portions standing up from the long side edge portion of the bottom plate and opened upward, and the upper end of the pair of side plate portions is connected to the winding center axis. The rail groove extends with the direction along the slide direction as the sliding direction, and the engagement piece that engages with the rail groove is provided on both sides of the work surface on the lower surface of the control unit. Switchgear.

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