Shutter power switching device

Abstract

To make it possible to perform opening / closing operation using a commercial power source even if a lid body is closed without returning a switching operation part in a posture in which an external power source is selected to its original posture after power restoration.SOLUTION: In a power source switching device 6 comprising a case 60, a lid body 63 for opening and closing an opening 605 of the case 60, and a switching operation part 61 provided in the case 60 for switching between a commercial power source and an external power source, the switching operation part 61 is configured to take a first posture in which the commercial power source is selected and a second posture in which the external power source is selected, when the lid body 63 is closed while the switching operation part 61 is in the second posture, the switching operation part 61 changes its posture from the second posture to the first posture accompanying with the close of the lid body 63, and when the lid body 63 is in the closed posture, the switching operation part 61 is in the first posture and the commercial power source is selected.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a power supply switching device for a shutter.

Background Art

[0002] In a shutter device, normally, the opening / closing machine is driven by power from a commercial power supply to operate the shutter, but there has been proposed a device that operates the shutter by using an external power supply as the power supply for the opening / closing machine during a power outage or the like (Patent Documents 1 to 4).

[0003] Patent Document 1 provides a power supply switching device for an opening / closing device that can prevent forgetting to switch the power supply for supplying power from a second power source to a first power source by operating a changeover switch when power is restored after a power outage. Among the rotation range of the operation part of the changeover switch, one rotation limit position is a position where power from the first power source is supplied, and the other rotation limit position is a position where power from the second power source is supplied. On the back surface of the lid member, the operation part of the changeover switch arranged to face the opening of the storage member is provided with a lid member fully closed operation preventing means for preventing the lid member from closing to the fully closed position when the operation part is in a position from the central position (the position where the operation part is in a horizontal posture) to the other rotation limit position within the rotation range of the operation part. When the operation part of the changeover switch is in a position from the central position to the other rotation limit position, even if an attempt is made to close the lid member to the fully closed position, the lid member will stop the closing operation at a position before the fully closed position, so as to prevent forgetting to switch the power supply for supplying power by operating the changeover switch from the second power source to the first power source, in other words, forgetting to return the changeover switch to the normal position.

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a power switching device that enables opening and closing operations using a commercial power source even when the lid is closed without returning the switching operation unit in the posture of selecting an external power source after power restoration.

Means for Solving the Problems

[0005] The technical means adopted by the present invention is a switching operation unit for switching between a commercial power source and an external power source, a lid for opening and closing an opening for operating the switching operation unit, In a power switching device provided with the switching operation unit is configured to take a first posture in which a commercial power source is selected and a second posture in which an external power source is selected, when the lid is closed while the switching operation unit is in the second posture, with the closing of the lid, the switching operation unit changes from the second posture to the first posture, and when the lid is in the closed posture, the switching operation unit is in the first posture and a commercial power source is selected. It is a power switching device for a shutter. In one aspect, the switching operation unit is provided inside a case, the lid is configured to open and close the opening of the case, when the lid opens the opening, the switching operation unit is in an exposed state, and when the lid closes the opening, the switching operation unit is in a concealed state.

[0006] In one aspect, a protrusion is provided at a predetermined portion on the back surface of the lid, and when the lid is closed, the protrusion abuts against the switching operation unit, and when the lid is in the closed posture, the switching operation unit is in the first posture. In one aspect, the switching operation unit is located on the rotating tip side of the lid, an operating tool is provided on the rotating tip side of the lid, and the protrusion is a part of the operating tool.

[0007] In one aspect, the switching operation unit includes a first part and a second part, configured such that when the first part is pressed, it assumes a first posture and a commercial power source is selected, and when the second part is pressed, it assumes a second posture and an external power source is selected, when the lid is closed while the switching operation unit is in the second posture, with the closing of the lid, the first part is pushed by the protrusion, and the switching operation unit assumes the first posture in the closed posture of the lid. In one aspect, in the first posture, the second part protrudes with respect to the first part, in the second posture, the first part protrudes with respect to the second part, the protrusion pushes in the first part in the protruding posture when the lid is closed, and the switching operation unit assumes the first posture in the closed posture of the lid.

[0008] In one aspect, when switching between the first posture and the second posture, the switching operation unit passes through a third posture where it is not connected to a power source, when the lid is closed while the switching operation unit is in the second posture, with the closing of the lid, the switching operation unit changes from the second posture to the first posture via the third posture.

[0009] The technical means adopted by the present invention is a switching operation unit for switching between a commercial power source and an external power source, a lid for opening and closing an opening for operating the switching operation unit, in a power source switching device including the switching operation unit includes a first part and a second part, configured such that when the first part is pressed, it assumes a first posture and a commercial power source is selected, and when the second part is pressed, it assumes a second posture and an external power source is selected, when the lid is in the closed posture, the switching operation unit is always in the first posture and a commercial power source is selected, a power source switching device for a shutter. In one aspect, a protrusion is provided at a predetermined portion on the back surface of the lid body, and when the lid body is in the closed position, the protrusion abuts or is close to the first portion.

Advantages of the Invention

[0010] In the present invention, when the lid body is closed while the switching operation unit is in the second position, as the lid body is closed, the switching operation unit changes from the second position to the first position, and when the lid body is in the closed position, the switching operation unit is in the first position and the commercial power supply is selected. Therefore, when the power is restored after using the power switching device, even if the switching operation unit remains switched to the external power supply side, as the lid body is closed, the switching operation unit automatically switches to the commercial power supply side. After that, the shutter can be opened and closed in the normal usage method (with the commercial power supply supplied), preventing a situation where the shutter does not operate while the switching operation unit remains switched to the external power supply side after the power is restored.

Brief Description of the Drawings

[0011]

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Figure 16

Embodiments for Carrying Out the Invention

[0012] As shown in Fig. 1, the shutter device according to this embodiment includes a shutter curtain 1 that opens and closes an opening, guide rails 2 provided at both ends in the width direction of the opening, a winding shaft 3 provided above the opening around which the shutter curtain 1 is wound, an opening / closing machine M provided at a position above the opening and closer to one side in the opening width direction and transmission-connected to the winding shaft 2, a shutter case 4 located above the opening and housing the winding shaft 3, the shutter curtain 1 wound around the winding shaft 3, and the opening / closing machine M, and an electric opening / closing operation unit 5 for electrically opening and closing the shutter. In one aspect, the electric opening / closing operation unit 5 is composed of a switch box embedded in a wall surface, but the electric opening / closing operation unit 5 may be a remote operation unit 5'. A power supply switching device 6 is provided on the housing near the opening, and the power supply switching device 6 can be connected by a portable power source (battery) 7 exemplified as an external power source and an external power supply cord 8 for supplying power from the external power source.

[0013] As shown in Figs. 1 to 3, when the open switch of the electric opening / closing operation unit 5 is pressed, an open signal is transmitted to the shutter control panel 50, the opening / closing machine M is driven to raise the shutter curtain 1. When the close switch of the electric opening / closing operation unit 5 is pressed, a close signal is transmitted to the shutter control panel 50, the opening / closing machine M is driven to lower the shutter curtain 1. When the stop switch is pressed from the electric opening / closing operation unit 5, the opening / closing machine M stops via the shutter control panel 50 to stop the shutter curtain 1 during electric lifting and lowering. The shutter device according to this embodiment is provided with a photoelectric sensor 9. When the light beam horizontally extending between the guide rails 2 on the left and right at both ends of the opening is blocked, the opening / closing machine M stops via the shutter control panel 50 to stop the shutter curtain 1 during electric lifting and lowering.

[0014] In the shutter according to this embodiment, normally, power from a commercial power supply is supplied to the opening / closing machine M. However, during a power outage or the like, the shutter can be electrically opened and closed using an external power supply. The shutter according to this embodiment includes a power supply switching device 6 that switches between the commercial power supply and the external power supply. During a power outage or the like, by selecting the external power supply with the power supply switching device 6, the shutter can be electrically opened and closed using the external power supply.

[0015] In this specification, the external power supply is a power supply supplied from the outside separately from the commercial power supply supplied in the building, so to speak, a temporary power supply. As the external power supply, a general portable power supply 7 that supplies AC100V (pure sine wave) like the commercial power supply or an in-vehicle power outlet (the battery of a moving vehicle) can be used. The shutter device according to this embodiment is mainly a shutter for a house (for example, a garage) or a store, and it is desirable to be able to use a power supply that can be easily utilized as the external power supply.

[0016] In FIGS. 1, 11, 12, and 14, a portable power supply (battery) 7 exemplified as the external power supply is shown. By connecting a plug (Type A) 80 exemplified as the connector at the tip of the external power supply cable 8 to a power outlet (Type A) 70 exemplified as the connector of the portable power supply 7, power from the external power supply is supplied. In FIGS. 4 and 13, by connecting a plug (Type A) 80 at the tip of the external power supply cable 8 to a power outlet (Type A) 70' at the tip of a cable 7' connected to an in-vehicle power outlet (not shown) that extracts power from the battery of an automobile, power from the external power supply is supplied.

[0017] The power supply switching device 6 is electrically connected to a first cord C1 as a power supply line from a commercial power supply, an external power supply cord 8 as a power supply line from an external power supply, and a second cord C2 as a power supply line to the opening / closing machine M. In the power supply switching device 6, by electrically connecting the first cord C1 and the second cord C2, the power from the commercial power supply is supplied to the opening / closing machine M through the first cord C1 and the second cord C2 as a power supply path. By electrically connecting the external power supply cord 8 and the second cord C2, the power from the commercial power supply is supplied to the opening / closing machine M through the external power supply cord 8 and the second cord C2 as a power supply path. The shutter curtain 1 is electrically raised and lowered by an opening / closing operation from the electric opening / closing operation unit 5.

[0018] As shown in FIGS. 1 and 2, one end of the first cord C1 is connected to a commercial power supply (AC100V) through a circuit breaker Br, and the other end is connected to the power supply switching device 6. The first cord C1 according to the present embodiment is a two-core VCTF cable. The first cord C1 typically extends in a pipe buried in a housing or in a wiring cover provided on a wall surface.

[0019] A plug 80 connectable to an external power supply (AC100V) is provided at one end of the external power supply cord 8, and the other end is connected to the power supply switching device 6. The external power supply cord 8 with the other end fixed to the power supply switching device 6 extends outside the housing when connected to the external power supply. The external power supply cord 8 according to the present embodiment is a curly cord. In the curly cord constituting the external power supply cord 8 according to the present embodiment, the length when the curly cord hangs down by its own weight is shorter than the distance between the height position of the case 60 of the power supply switching device 6 (to which the other end of the external power supply cord 8 is fixed) attached to the housing and the floor surface. When the external power supply cord 8 (curly cord) hangs down from the case 60, the lower end (plug 80 at one end) of the external power supply cord 8 is spaced upward from the floor surface.

[0020] The curly cord is an example of the external power supply cord 8, and does not limit the specific type of the external power supply cord 8. However, using the curly cord as the external power supply cord 8 has the following advantages. The curly cord can be further extended from the state of hanging down by its own weight from the power switch device 8. In the state of hanging down by its own weight with the second end fixed to the power switch device 8, the first end (lower end) is spaced upward from the floor surface. When the second cord C2 hangs down, the insertion plug 80 at the first end is prevented from getting wet by grounding (in the case of being wet), thus avoiding a situation where it gets wet (the risk of electric leakage when connected to an external power supply).

[0021] The first end of the second cord C2 is connected to the opener M, and the second end is connected to the power switch device 6. The second cord C2 according to this embodiment is a two-core VCTF cable. The second cord C2 typically extends within a pipe embedded in the housing or within a wiring cover provided on the wall surface and is not exposed to the outside. In the power switch device 6, the second end of the second cord C2 can be selectively connected to the second end of the first cord C1 and the second end of the external power supply cord 8.

[0022] Normally, the second end of the first cord C1 and the second end of the second cord C2 are electrically connected in the power switch device 6, and the commercial power supply is connected to the opener M via the power supply path composed of the first cord C1 and the second cord C2, and the shutter operates by the power supplied from the commercial power supply.

[0023] When the commercial power supply is invalid during a power outage or the like, in the power switch device 6, the connection destination of the second end of the second cord C2 is switched to the second end of the external power supply cord 8, and the opener M is connected to the external power supply via the power supply path composed of the external power supply cord 8 and the second cord C2, and the shutter operates by the power supplied from the external power supply.

[0024] The power supply switching device 6 is a power supply switching unit including a power supply switching section 61. The power supply switching unit according to the present embodiment is a power supply switching box including a case 60, a power supply switching section 61, a storage section 62 for storing an external power supply cord 8, and a lid 63. In one aspect, the power supply switching device 6 is embedded in a wall such that the lid 63 is flush with the wall. Alternatively, the power supply switching device 6 may be externally attached to the wall. The power supply switching unit according to the present embodiment includes a case 60 and the power supply switching section 61 is housed in the case 60, but the power supply switching unit is not limited to those including a case, and an aspect where the power supply switching section is not housed in a case may also be possible.

[0025] In this specification, the power supply switching device 6 to the power supply switching unit refers to a power supply switching device in a narrow sense, and the power supply switching device in a broad sense includes the power supply switching device 6 as a power supply switching unit, a first cord C1, a second cord C2, and an external power supply cord 8.

[0026] As shown in FIGS. 6 to 10, the case 60 includes an upper wall 600, a first side wall 601, a second side wall 602, a lower wall 603, a bottom wall 604 on the back surface, and a peripheral front edge 606 in which a horizontally rectangular opening 605 is formed, and the opening 605 can be opened and closed by the lid 63. The lid 63 has the second side wall 602 side as the rotation base end side and the first side wall 601 side as the rotation tip end side. Note that the rotation direction of the lid 63 is not limited to the illustrated aspect, and the second side wall 602 side may be the rotation tip end side and the first side wall 601 side may be the rotation base end side, or either the upper wall 600 side or the lower wall 603 side may be the rotation tip end side and the other may be the rotation base end side. Insertion holes (not shown) for the first cord C1 and the third cord C3 are formed in the upper wall 600 of the case 60, and the piping (not shown) of the first cord C1 and the piping (not shown) of the third cord C3 are connected.

[0027] Inside the case 60, the part near the first side wall 601 serves as the power switch unit 61, and a concave storage unit 62 is formed adjacent to the power switch unit 61. The power switch unit 61 includes a front part 610, and a switching operation unit 611 and a light-emitting unit (external power supply indicator light) 612 are provided on the surface of the front part 610. The front part 610 of the power switch unit 61 and the storage unit 62 are located at the opening 605 of the case 60. When the lid 63 is in the closed position, the opening 605 is blocked so that the front part 610 of the power switch unit 61 and the storage unit 62 are concealed. When the lid 63 is in the open position, the opening 605 is opened so that the front part 610 of the power switch unit 61 and the storage unit 62 are exposed.

[0028] In the space provided on the back surface of the front part 610 of the power switch unit 61, the second end of the first cord C2, the second end of the external power supply cord 8, and the second end of the second cord C2 are accommodated, and this space forms the cord accommodation unit 613. The power switch unit 61 is provided with a switching means 614 for selectively switching between commercial power and external power. By operating the switching means 614 with the switching operation unit 611, the electrical connection between the second end of the first cord C1 and the second end of the second cord C2 accommodated in the cord accommodation unit 613, and the electrical connection between the second end of the external power supply cord 8 and the second end of the second cord C2 are selectively switched.

[0029] The storage unit 62 includes a first side surface 620 on the side of the power switch unit 61, a second side surface 621 on the rotation base end side (the second side wall 602 side) of the lid 63, an upper surface 622, a lower surface 623, and a bottom surface 624 on the back side. The second end side of the external power supply cord 8 is fixed to the first side surface 620, and the external power supply cord 8 is accommodated in the space surrounded by these surfaces. In this embodiment, the storage unit 62 is formed by five planar surfaces (the first side surface 620, the second side surface 621, the upper surface 622, the lower surface 623, and the bottom surface 624), but the shape of the storage unit 62 is not limited. For example, some or all of the surfaces of the storage unit 62 may be curved surfaces.

[0030] Also, as shown in FIG. 16, in a state where the external power supply cord 8 is stored in the storage portion 62, a band 627 may be provided so as to span the inner front portion 625 above the upper surface 622 of the storage portion 62 and the inner front portion 626 below the lower surface 623. The band 627 is detachably provided on the inner front portion 625 and the inner front portion 626 by, for example, a hook-and-loop fastener. By pressing the external power supply cord 8 stored in the storage portion 62 with the band 627, the storage posture of the external power supply cord 8 can be maintained. Further, a rising piece may be provided at the front end portion of the lower surface 623 of the storage portion 62.

[0031] The cord storage portion 62 and the cord accommodation portion 613 are adjacent to each other via the first side surface 620. The upper wall 600 of the case 60 and the upper surface 622 of the storage portion 62 are separated from each other, and an upper space in which a cord extends is formed therebetween. The cord accommodation portion 613 of the power supply switching portion 61 and the upper space communicate with each other. In the present embodiment, the inner front portion 625 above the upper surface 622 of the storage portion 62 and the inner front portion 626 below the lower surface 623 are flush with the front portion 610 of the power supply switching portion 61. The second end side of the external power supply cord 8 is fixed to the first side surface 620 of the storage portion 62. The second end portion of the external power supply cord 8 passes through the first side surface 620 and is located within the cord accommodation portion 613 of the power supply switching portion 61.

[0032] The second end portion (the portion on the second end side) of the first cord C1 is located within the cord accommodation portion 613 of the power supply switching portion 61, the second end portion of the external power supply cord 8 passes through the first side surface 620 and is located within the cord accommodation portion 613 of the power supply switching portion 61, the second end portion (the portion on the second end side) of the second cord C2 is located within the cord accommodation portion 613 of the power supply switching portion 61, and by the switching operation of the switching operation portion 611 of the power supply switching portion 61, the switching means 614 is actuated to selectively switch the connection between the second end portion of the first cord C1 and the second end portion of the second cord C2, and the connection between the second end portion of the external power supply cord 8 and the second end portion of the second cord C2.

[0033] The power supply switching means 614 selectively takes the first state in which the second end of the first cord C1 and the second end of the second cord C2 are connected and the connection between the second end of the external power supply cord 8 and the second end of the second cord C2 is released, and the second state in which the connection between the second end of the first cord C1 and the second end of the second cord C2 is released and the second end of the external power supply cord 8 and the second end of the second cord C2 are connected. The power supply switching means 614 can be switched between the first state and the second state by the switching operation of the switching operation unit 611.

[0034] The switching operation unit 611 protrudes from the front surface portion 610 and includes an upper first portion 6110 and a lower second portion 6111. In the first posture where the first portion 6110 of the switching operation unit 611 is pushed, the power supply switching means 614 is in the first state, the second ends of the first cord C1 and the second cord C2 are connected, and commercial power is supplied to the opening and closing machine M.

[0035] In the second posture where the second portion 6111 of the switching operation unit 611 is pushed, the power supply switching means 614 is in the second state, the second ends of the external power supply cord 8 and the second cord C2 are connected, and external power can be supplied to the opening and closing machine M. By connecting the first end of the external power supply cord 8 to an external power supply, external power is supplied to the opening and closing machine M. When the external power supply is valid, the light emitting portion 612 on the front surface portion 60 of the power supply switching unit 6 emits light. The light emitting portion 612 is composed of, for example, an LED display portion and emits light by the power of the external power supply.

[0036] When the lid 63 is in the closed position, the opening 605 on the front surface of the case 60 is blocked, and the front portion 610 (switching operation portion 611, light emitting portion 612) of the power supply switching unit 61, the storage portion 62, and the external power supply cord 8 stored in the storage portion 62 are located on the back surface of the lid 63. When the lid 63 is in the open position, the opening 605 on the front surface of the case 60 is open, and the front portion 610 (switching operation portion 611, light emitting portion 612) of the power supply switching unit 61 is exposed, enabling the operation of the switching operation portion 611, making the light emission of the light emitting portion 612 visible, the storage portion 62 is opened, and the external power supply cord 8 stored in the storage portion 62 can be pulled out.

[0037] The rotation base end side of the lid 63 is rotatably connected to the case 6. An operating tool 630 of the lid 63 is provided on the rotation tip side of the lid 63. The operating tool 630 includes a rotatable first portion (knob 6300) protruding from the front surface of the rotation tip side of the lid 63 and a rotatable second portion 6301 protruding from the back surface of the rotation tip side of the lid 63. The second portion 6301 is provided with a locking piece 631 that rotates by the operation (rotation operation) of the operating tool 630. When the lid 63 is in the closed position, the locking piece 631 is rotated by the operation of the operating tool 63 and locked to an engaged portion (not shown) formed on the inner side surface 607 on the first side wall 601 side of the opening 605 on the front surface of the case 60, thereby locking the closed position of the lid 63.

[0038] The switching operation portion 611 according to this embodiment takes a first posture (see FIG. 9) in which the upper first portion 6110 is pushed and the lower second portion 6111 protrudes, a second posture (see FIG. 7) in which the lower second portion 6111 is pushed and the upper second portion 6110 protrudes, and a third posture (power OFF state, see FIG. 8) between the first posture and the second posture.

[0039] Normally, the switching operation unit 611 is in the first position, and power from the commercial power supply is supplied to the switch M. When it is desired to electrically open and close the shutter during a power outage or the like, the external power supply (portable power supply 7) is activated, the lid 63 of the power switch 6 is opened, the second portion 6111 below the switching operation unit 611 is pressed, and the switching operation unit 611 in the first position is changed to the second position (see FIG. 11). The external power supply cord 8 is pulled out from the storage unit 62, and the insertion plug 80 at the first end of the external power supply cord 8 is inserted into the socket 70 of the portable power supply 7 as the external power supply and connected. Then, the light emitting unit 612 emits light, and it can be confirmed that the external power supply is valid (see FIG. 12).

[0040] By the opening and closing operation from the electric opening and closing operation unit 5 or the remote operation body 5', the shutter can be electrically opened and closed using the external power supply (see FIG. 13). In FIG. 13, by connecting the insertion plug 80 at the tip of the external power supply cord 8 to the socket 70' at the tip of the cord 7' connected to the in-vehicle socket (not shown), power from the external power supply is supplied.

[0041] After electrically driving the shutter using the external power supply, the first portion 6110 above the switching operation unit 611 is pressed, the switching operation unit 611 in the second position is changed to the first position, the connection between the first end of the external power supply cord 8 and the external power supply is released, and with the external power supply cord 8 stored in the storage unit 62, the lid 63 is closed.

[0042] On the back surface of the rotating tip side of the lid 63 according to this embodiment, a protrusion 632 is provided so as to be located in front of the first portion 6110 above the switching operation unit 611 when the lid 63 is in the closed position. When the lid 63 is in the closed position, the tip of the protrusion 632 lightly contacts or approaches the first portion 6110 of the switching operation unit 611 in the first position. That is, when the lid 63 is closed when the switching operation unit 611 is in the second position, the protrusion 632 on the back surface of the lid 63 abuts against the first portion 6110 in the protruding position and pushes in the first portion 6110, so that when the lid 63 is in the closed position, the switching operation unit 611 is in the first position.

[0043] In this embodiment, the tip side portion of the second part 6301 of the operating tool 630 forms a protrusion 632. In the lid 63 of this embodiment, when the lid 63 is in the closed position or approaching the closed position, the second part 6301 of the operating tool 630 is positioned in front of the front side of the first part 6110 above the switching operation part 611 of the power switching part 61. That is, when the lid 63 is in the closed position, the protrusion 632 provided on the back surface of the pivoting tip side is positioned in front of the front side of the first part 6110 above the switching operation part 611. Note that the protrusion 632 may be separate from the operating tool 630. For example, if the positions of the second part 6301 of the operating tool 630 and the first part 6110 above the switching operation part 611 do not correspond, a protrusion 632 provided separately from the operating tool 630 may be made to contact the first part 6110 above the switching operation part 611 when the lid 63 is in the closed position.

[0044] As shown in FIGS. 7 to 9, the protruding dimension of the protrusion 632 is such that when the switching operation part 611 is in the second position, when the lid 63 in the open position approaches the closed position, it contacts the first part 6110 (protruding position) above the switching operation part 611. From this state, when the lid 63 rotates a little further in the closing direction, the first part 6110 in the protruding position is pushed in a little, and the switching operation part 611 is set to the third position (power OFF state). From this state, when the lid 63 rotates a little further in the closing direction and reaches the closed position, the first part 6110 is further pushed in, and the switching operation part 611 is set to the first position.

[0045] In this embodiment, on the back surface side of the lid part 63, when the lid part 63 approaches the closed position, by providing the protrusion 632 positioned on the first part 6110 above the switching operation part 611 of the power switching part 61, even if, after using an external power source, the switching to the first position of the switching operation part 611 is forgotten, when the lid part 63 reaches the closed position, the protrusion 632 on the back surface of the lid part 63 pushes in the first part 6110 above the switching operation part 611, and at the same time that the lid part 63 reaches the closed position, the switching operation part 611 becomes the first position.

[0046] In the switching operation unit 611 according to the present embodiment, in the first posture where the first portion 6110 of the switching operation unit 611 is pressed, the power supply switching means 614 is in the first state, and the second end of the first cord C1 and the second end of the second cord C2 are connected so that commercial power is supplied to the opening and closing machine M. In the second posture where the second portion 6111 of the switching operation unit 611 is pressed, the power supply switching means 614 is in the second state, and the second end of the external power supply cord 8 and the second end of the second cord C2 are connected so that external power can be supplied to the opening and closing machine M. However, the power supply switching function may be reversed up and down. Specifically, in the first posture where the first portion 6110 of the switching operation unit 611 is pressed, the power supply switching means 614 is in the second state and is connected to the external power supply. In the second posture where the second portion 6111 of the switching operation unit 611 is pressed, the power supply switching means 614 is in the first state and is connected to the commercial power supply. Also, the first portion 6110 and the second portion 6111 of the switching operation unit 611 may be positioned in the left - right direction. It should be noted that depending on the specific configuration of the switching operation unit 611, the position of the protrusion 632 provided on the back surface of the lid 63 may also be different.

[0047] In the above - described embodiment, the shutter curtain 1 is configured by vertically connecting a plurality of long - shaped slats extending in the opening width direction. However, the shutter device to which the power supply switching device 6 according to the present invention is applied is not limited to the slat shutter. For example, it can also be applied to an overhead door.

[0048] As shown in FIG. 14, the overhead door includes a shutter curtain 1' formed by connecting a plurality of panels, a first portion located at both ends of the opening and extending in the height direction, a second portion curvedly extending from above the opening to the indoor side, and a third portion extending to the indoor side along the ceiling of the indoor space, and a guide rail 2'. An opening and closing machine M is provided at the indoor side portion of the ceiling.

[0049] The power supply switching device 6 is electrically connected to a first cord C1 as a power supply line from a commercial power supply, an external power supply cord 8 as a power supply line from an external power supply, a second cord C2 as a power supply line to the opening / closing machine M, and a third cord C3. In the power supply switching device 6, by operating the power supply switching means 614 by the switching operation unit 611, the second end of the second cord C2 can be selectively connected to the second end of the first cord C1 and the second end of the external power supply cord 8.

[0050] As shown in FIGS. 14 and 15, a plug is connected to the first end of the first cord C1 to a socket of a commercial power supply (AC100V), and the second end is connected to the power supply switching device 6. The first cord C1 typically extends within a pipe embedded in the housing or within a wiring cover provided on the wall surface.

[0051] A plug 80 connectable to an external power supply (AC100V) is provided at the first end of the external power supply cord 8, and the second end is connected to the power supply switching device 6. The external power supply cord 8 with the second end fixed to the power supply switching device 6 extends outside the housing when connected to the external power supply. The external power supply cord 8 according to the present embodiment is a coiled cord 8.

[0052] A socket is provided at the first end of the second cord C2, and the second end is connected to the power supply switching device 6. The first end of the third cord C3 is connected to the opening / closing machine M, and a plug connectable to the socket provided at the first end of the second cord C2 is provided at the second end, and the first end of the second cord C2 and the second end of the third cord C3 are connected. The second cord C2 and the third cord C3 typically extend within a pipe embedded in the housing or within a wiring cover provided on the wall surface.

[0053] Normally, the second end of the first code C1 and the second end of the second code C2 are electrically connected in the power switching device 6, and a commercial power supply is connected to the opening / closing machine M via a power supply path composed of the first code C1, the second code C2, and the third code C3, and the shutter (overhead door) is operated by the power supplied from the commercial power supply.

[0054] When the commercial power supply is invalid during a power outage or the like, in the power switching device 6, the connection destination of the second end of the second code C2 is switched to the second end of the external power supply cord 8, and the opening / closing machine M is connected to the external power supply via a power supply path composed of the external power supply cord 8, the second code C2, and the third code C3, and the shutter (overhead door) is operated by the power supplied from the external power supply.

Explanation of Signs

[0055] 1 Shutter curtain 5 Electric opening / closing operation unit 5´ Electric opening / closing operation unit (remote operation unit) 6 Power switching device (power switching unit) 60 Case 61 Power switching section 610 Front section 611 Switching operation section 6110 Upper first part 6111 Lower second part 613 Cord storage section 614 Switching means 62 Storage section 63 Cover section 630 Operating tool 6300 First part 6301 Second part 632 Projection 7 External power supply (portable power supply) 8 External power supply cord C1 First code C2 Second code C3 Third code M Opening / closing machine

Claims

1. A switching operation unit for switching between a commercial power supply and an external power supply, A lid for opening and closing an opening for operating the switching operation unit, In a power supply switching device provided with, The switching operation unit is configured to take a first posture in which a commercial power supply is selected and a second posture in which an external power supply is selected, A protrusion is provided at a predetermined portion on the back surface of the lid, The switching operation unit includes a first portion and a second portion. When the first portion is pushed, the second portion protrudes to form the first posture. When the second portion is pushed, the first portion protrudes to form the second posture, When the lid is closed when the switching operation unit is in the second posture, with the closing of the lid, the first portion in the protruding posture is pushed by the protrusion, and the switching operation unit is in the first posture when the lid is in the closed posture so that a commercial power supply is selected, A power supply switching device for a shutter.

2. The switching operation unit is located on the rotation tip side of the lid, An operating tool is provided on the rotation tip side of the lid, and the protrusion is a part of the operating tool, The shutter power supply switching device according to claim 1.

Images