JPH1181836A - Manual and electric operation change-over device for electric shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change over a shutter curtain which is electrically operated into manual operation by operating an operation knob provided in a slat in case of emergency to operate a latch mechanism arranged in a guide rail and shut off a connection condition of a clutch which connects a drive source with a winding part. SOLUTION: An operation knob 17 is arranged in a skirting slat 6 in a lowermost fringe of a shutter curtain 3 guided by a guide rail 4 so as to move vertically and freely, and an operation rod 21 slides and moves in the interlocking relationship with the operation knob 17 so that its tip 24a advances and retracts. Moreover, an energizing member 46 arranged in the guide rail 4 is connected with a wire 11 of a clutch 10 to disconnect the clutch 10, and a latch mechanism 37 is engaged with the energizing member 46 to regulate its energizing force and is engaged with the tip 24a of the operation rod 21 to release the regulation of the generation of energizing force in the interlocking relationship with the advance and retraction operation of the operation rod 21. Furthermore, a restoration means 48 restores the latch mechanism 37 to an engaging condition in which the generation of energizing force by the energizing member 46 is regulated in the interlocking relationship with the latch mechanism 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric shutter, in which a clutch for transmitting the power of the shutter is released to release the brake state, and the shutter is manually opened and closed. That is, the present invention relates to a manual / electric switching device for an electric shutter.

[0002]

2. Description of the Related Art An electric shutter provided at an opening of a building or the like is a winding wheel that winds a shutter curtain around a sprocket in which a drive shaft of a motor and a sprocket are connected in a shutter case by a chain or the like. Are connected.

Therefore, when the shutter is electrically opened and closed, the motor is driven to rotate the winding wheel via the sprocket, thereby winding and rewinding the shutter curtain to open and close.

[0004] When the electric shutter is stopped during opening and closing operations, or when the shutter curtain is fully opened or fully closed, the brake is automatically applied at the stop position so that the shutter curtain does not move up and down. It has become.

[0005] However, in such an electric shutter, if power is not supplied to the motor due to a power failure or the like, the brake is always in effect and the opening and closing operation of the shutter becomes impossible. . That is, the shutter stops in the fully closed state, the fully opened state, or in the middle of opening and closing, and cannot be opened and closed.

Therefore, recent electric shutters are provided with a clutch between a drive source such as a motor and a winding wheel so that power transmission can be released. A manual / electric switching device is provided so that the clutch can be disengaged by performing a remote operation via a wire or the like connected to the vehicle, the brake state can be released, and the shutter curtain can be manually opened and closed.

The manual / electric switching device is disposed at a side of an opening provided with a shutter, for example, near a guide rail for guiding the shutter curtain up and down, and is connected to the clutch via a wire. It has a structure in which a slide plate is provided at the end of the wire, and the slide plate is moved up and down by a lever that swings up and down. According to this, when the lever is tilted upward, the slide plate is lowered and the wire is pulled, that is, the clutch is disengaged, and the manual state is established, and when the lever is tilted downward, the slide plate is raised, and the wire is pulled. The towing state is released and the vehicle returns to the original state, the clutch is engaged, and the opening and closing of the shutter curtain is in the electric state.

[0008]

However, the above-mentioned conventional manual / electric switching device has a structure in which the wire connected to the clutch is directly operated, so that it is limited to a structure disposed near the guide rail. In addition, since this switching device is not provided with a plurality of shutter devices, but is provided with only one clutch, only one of a pair of guide rails disposed on the left and right sides is used. It is configured to be arranged near,
For this reason, in an emergency, it is not possible to instantly determine which guide rail is located near which guide rail, and when the emergency exit for a fire or the like is lost, it is difficult to determine whether the switching device is located near the guide rail. There is a problem that may occur.

In the case of a window shutter device, a sash window or the like is usually arranged on the indoor side of the shutter device. Therefore, it is determined which of the sash windows should be opened in an emergency in order to find the switching device. Must be performed,
It has disadvantages that are not easy to use.

[0010] Further, when a shoji is provided on the indoor side of the sash window as described above, the crescent of the sash window is usually located on the left side. If it is not opened, the sash window cannot be opened, the arrangement position of the switching device will be limited only to the vicinity of the left guide rail, and if there is a fitting window on the left or right half of the window, Also, the arrangement position of the switching device is limited. From this, it is necessary to prepare a product of the right specification and the left specification for the switching device,
It has a drawback that it is complicated in manufacturing and cannot be easily changed at the construction site.

Therefore, in order to solve the above-mentioned problems, the present invention makes the operation for switching from electric operation to manual operation easy without the necessity of prompt judgment, etc., and quickly switches to manual operation to shift to the opening operation of the shutter curtain. In addition to this, there is no limitation on the arrangement position, the usability is good and the operability is good.In addition, the manual operation of the electric shutter which can easily switch from the manual state to the electric state can be performed. It is an object to provide an electric switching device.

[0012]

Next, means for achieving the above object will be described with reference to the drawings corresponding to the embodiments. A manual / electric switching device for an electric shutter according to the present invention includes a clutch 1 for transmitting power between a drive source 9 and a shutter curtain winding unit 8 constituting an electric shutter.
In a manual / electric switching device 1 for an electric shutter that switches the rotation of the shutter curtain winding unit 8 between a manual state and an electric state, the pair of shutters are disposed on both opposing edges of the building opening 2. A substantially rectangular plate-shaped slat 6 which constitutes a shutter curtain 3 in which both edges are inserted and guided for movement in each groove 4a formed in the guide rails 4 and 5, and a longitudinal direction of the slat 6 An operation knob 17 disposed at a desired position in the middle part, and an operation knob 17 interlockingly connected to the operation knob 17 and disposed along the longitudinal direction of the slat 6, and by operating the operation knob 17, the operation of the slat 6 The slide 24 is slid along the longitudinal direction, and the distal end 24a is disposed in the groove 4a of the guide rail 4 and the operating rod 21 which advances and retreats from the end of the slat 6. It is connected to the wire 11 connected to a biasing member 46 having a biasing force to break the clutch 10 by pulling the wire 11, the guide rail 4
And is engaged with the urging member 46 to regulate the generation of the urging force by the urging member 46, and engages with the distal end 24 a of the operating rod 21, and 2
1, a latch mechanism 37 that releases the restriction of the generation of the urging force by the urging member 46 in conjunction with the forward / backward movement of the first arm, and a latch mechanism 37 located outside the guide rail 4 and interlocked with the latch mechanism 37, And a return means for returning the latch mechanism to an engaged state for restricting generation of an urging force by the urging member.

The slat 6 may be constituted by a skirting slat 6 constituting a moving end of the shutter curtain 3, and the operation knob 17 slides in the same direction as the moving direction of the shutter curtain 3. It may be configured to be movable, and a handpiece 18 may be protruded. Further, the operation knob 17 is pivotally supported by the slat 6 and is swingable in the longitudinal direction of the slat 6. It may be configured.

With this configuration, power is not supplied to the drive source 9 such as a motor due to a power failure or the like.
To manually open the shutter curtain 3, the operation knob 1 provided on the slat 6 of the shutter curtain 3
By operating the latch 7, the latch mechanism 37 disposed in the guide rail 4 is operated, the clutch 10 for connecting the drive source 9 and the winding unit 8 is disconnected, and the state is switched to the manual state.

In particular, by configuring the operation knob 17 to slide in the same direction as the opening movement of the shutter curtain 3, it is possible to perform normal manual operation on the shutter curtain 3 for opening the shutter curtain 3. The same operation is performed, and the provision of the handle 18 on the operation knob 17 allows the shutter curtain 3 to be opened at the same time as switching from the electric state to the manual state.
The operation of opening the shutter curtain is an operation of switching from the electric state to the manual state, and the shutter curtain 3 can be manually opened without being conscious of the switching.

Further, the return operation from the manual state to the electric state can be easily performed by the return means 48, and the restoration to the electric state can be easily performed without complexity.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic front view of an electric shutter provided with a manual / electric switching device according to an embodiment of the present invention.
FIG. 2 is a perspective view of the manual / electric switching device of the embodiment.

A manual / electric switching device 1 according to this embodiment
As shown in FIG. 1, one of a pair of left and right guide rails 4 and 5 for supporting and guiding the ascending and descending of a shutter curtain 3 provided in an opening 2 of a building, and a moving end of the shutter curtain 3. And a skirting board slat 6 as a slat constituting the lowermost edge.

A shutter case 7 disposed above the building opening 2 shown in FIG. 1 has a bearing (not shown) provided on both side plates of the shutter case 7 and a shutter curtain winding portion. The take-up wheel 8 is rotatably supported, and the shutter curtain 3 is taken up by the take-up wheel 8.

A drive shaft of a motor 9 as a drive source disposed on one side of the shutter case 7 is operatively connected to a sprocket, and the sprocket is connected via a clutch 10 to the winding wheel 8. Is linked to

Accordingly, the motor 9 is driven by, for example, a switch disposed on the side wall of the opening 2, and the winding wheel 8 is rotated via the sprocket and the clutch 10 to wind the shutter curtain 3. Take or rewind, open or close.

This is an electric shutter which is operated by electric power, and is manually operated at the time of a power failure or the like. This is operated by operating the manual / electric switching device 1 and using a wire 11 connected to a clutch 10. The clutch 10 is disengaged, and for example, a sprocket is rotated by a chain (not shown) to rotate the winding wheel 8,
The shutter curtain 3 is manually opened and closed with the help of a balance spring provided on the winding wheel 8.

As shown in FIGS. 1 and 2, the manual / electric switching device 1 according to the present embodiment has an operation knob 17 and an operating rod 21 disposed on the baseboard slat 6, Urging member 46 and latch mechanism 37 disposed in
Return means 4 disposed outside the guide rail 4
8 and is roughly constituted.

First, as shown in FIGS. 2 to 4, the baseboard slat 6 has a substantially inverted T having a vertical portion 12 and a horizontal portion 13.
A connection curl portion 14 is formed on the upper edge of the vertical portion 12 on a substantially rectangular plate that is long in the left-right direction,
The shutter curtain 3 is connected to a slat 3a. The vertical portion 12 has a concave portion 15 that is continuous in the longitudinal direction on one surface 12a on the indoor side, and has a substantially U-shaped cross section.

In the present embodiment, as shown in FIGS. 2 and 4, the horizontal portion 13 is provided with a swingable sensing piece 16 having one side pivotally supported on a lower surface 13a. A sensor device such as an object sensing device is provided. In addition, as shown in FIG. 3 and FIG.
Are formed to be slightly shorter in the longitudinal direction than the vertical portion 12, that is, only the both end portions 12b of the vertical portion 12 are located inside the guide rail groove 4a described later.

Next, the operation knob 17 is formed in a substantially inverted L-shaped cross section, slightly shorter than the skirting board slat 6, and the upper horizontal portion is a handpiece 18.
As shown in FIG. 3 and FIG. 6, the vertical plate portion 19 is provided with, at least in the vicinity of both ends, long holes 20 inclined at, for example, 45 ° in the same direction.

Next, the operating rod 21 is, as shown in FIG.
It is composed of an interlock bar 22 and an operation bar 24. The interlock bar 22 is formed to have a length substantially equal to that of the operation knob 17, and a pair of through holes 23 set at the same interval as the interval between the two elongated holes 20, 20 formed in the plate portion 19. 23 are formed in the vicinity of both ends, respectively.

The operating bar 24 is constituted by a pair,
As shown in FIG. 3, it is formed in a prismatic shape, and a connecting pin 25 is protruded horizontally at the base end.
4 is formed to be slightly long.

As shown in FIG. 4, the operating bar 21 has an interlocking bar 22 extending along one surface 12a in the recess 15 of the baseboard slat 6, and the one surface 12a and the vertical It is located so that it is sandwiched between
Also, the interlocking bar 22 of the operating rod 21 and each of the operating bars 24 are inserted into the elongated holes 20 of the plate 19 by the connecting pins 25 of the operating bar 24 so as to sandwich the plate 19 at both ends. The interlocking bars 22 are fitted into the through holes 23 so that they can be combined with each other.

As shown in FIGS. 3 to 5, a cover case 26 having a substantially U-shaped cross section is fixed to one surface 12 a of the baseboard slat 6 so as to cover the periphery of each operation bar 24. , And the operation state of the operation bar 24 is maintained.
Are formed in a guide groove shape so that they can slide in the horizontal direction, and the tip 24a of one of the operation bars 24 is slightly projected from the end of the cover case 26.

As a result, the operation knob 17 can be slid vertically with respect to the skirting board slat 6,
As a result of this sliding movement, the connecting pin 25 moves in the oblong elongated hole 20 so that the interlocking bar 22 and each operating bar 24 slide along the longitudinal direction of the skirting board slat 6 to the left in FIG. And one operating bar 2
4 moves forward and backward from the end of the baseboard slat 6. In the case of the present embodiment, in particular, by raising the operation knob 17, the distal end 24 a of the operating rod 21 slides so as to protrude. It is configured to move.

Next, the urging member 46 and the latch mechanism 37,
The guide rail 4 on which the return means 48 is provided includes a guide rail main body 28 and an outer frame body 29, as shown in FIG. The guide rail main body 28 is formed to have a substantially U-shaped cross-section having a groove 4a formed at the opening edge thereof and provided with a mounting groove 30 in which a silence band (not shown) is provided at the opening edge, and formed at the back. The outer frame body 29 is formed to have a substantially U-shaped cross section, and one side 28 which is the indoor side of the guide rail body 28.
a, and a hollow portion 31 on a square pipe is formed with the one side 28a.

The outer frame 29 of the guide rail 4
The wire 11 connected to the clutch 10 is inserted through the hollow portion 31 formed of the wire.

In the vicinity of the lower end of the hollow portion 31 of the outer frame body 29 of the guide rail 4, a rectangular box-like case 33 which is long in the vertical direction and which can be divided into front and back sides is disposed as shown in FIG. I have. The front case 33A of the case 33 has a substantially rectangular window 34 at the upper end and a circular through hole 35 near the lower end.

The window 34 and the through hole 35 correspond to the rectangular hole 29a and the circular hole 29b formed in the outer frame 29 of the guide rail 4, respectively. The case 33 is fixed inside. The distal end 11a of the wire 11 is drawn into the case 33 from above (see FIG. 7).

Next, the latch mechanism 37 includes a slide bar 38.
And an actuator 41. As shown in FIG. 7, the slide bar 38 is made of a substantially strip-shaped plate that is long vertically and is slidably arranged in the case 33 in the vertical direction.

The slide bar 38 has an upper end 38a
The distal end 11a of the wire 11 is connected and fixed, an engaging piece 39 that engages with a return means 48 described later is provided horizontally at an intermediate portion, and a biasing member 46 described below is connected to a lower portion thereof. A piece 40 protrudes.

As shown in FIGS. 8 and 9, the actuator 41 has a rectangular bar-shaped slide bar 3 which is bent substantially in a Z-shape and has side plates on the left and right sides.
8 and is disposed in the case 33. The actuator 41 includes an actuator 42, a compression coil spring 44, a support pin 43, and a slide hole 45.
It is composed of

The actuator 42 has a large diameter portion 42a and a small diameter portion 42a.
b, and a guide hole 42c is formed in the large-diameter portion 42a on the base end side.
The back case 33B of the case 33 is inserted into the guide hole 42c.
Support pin 43 fixed horizontally to the compression coil spring 4
4 and the support pin 43 and the coil spring 44
And is slidable in the horizontal direction along a support pin 43 via a compression coil spring 44.

As shown in FIG. 9, the slide hole 45 has a large-diameter hole portion 45 having substantially the same diameter as the large-diameter portion 42a of the actuator 42.
a and a small-diameter hole 45b having substantially the same diameter as the small-diameter portion 42b of the actuator 42, and a lower half is a large-diameter hole 45a and an upper half is a small-diameter hole 45b. A darma-shaped hole is formed in the lower end 38b of the slide bar 38.
The stroke length of the slide hole 45 is set to the working distance of the clutch 10.

Then, the operator 42 is inserted into the slide hole 45.
Are arranged in the inserted state. In a normal state, the large diameter portion 42a of the actuator 42 is located in the large diameter hole 45a of the slide hole 45 as shown in FIG. The tip of the portion 42 b projects outward from the through hole 35 of the case 33, and the hole 29 b of the outer frame 29 of the guide rail 4.
The tip is more protruding. In addition, the through hole 35 of the case 33 and the hole 29b of the outer frame body 29 are formed to have substantially the same diameter as the small diameter portion 42b of the actuator 42. The large-diameter portion 42a of the actuator 42 is brought into a contact state.

Next, the biasing member is formed of a tension coil spring 46, and one end thereof is connected and fixed to a fixing piece 47 projecting inward from the inside of the case 33 as shown in FIG. The other end is connected and fixed to the connecting piece 40 of the slide bar 38 located above the 47, so that the urging force for pulling the connecting piece 40 of the slide bar 38 downward always acts on the fixing piece 47 of the case 33. It has become.

Next, a return lever 48 as a return means
Has a handle portion 49 and a locking piece 50, is formed of a member formed in a substantially rectangular shape with a halfway bent, and a support shaft 51 is provided in the bent halfway portion, and both ends of the support shaft 51. Is attached to the side plate of the case 33. As shown in FIG. 7, the return lever 48 attached to the case 33 has a handle 49 that is vertical and a locking piece 50.
Are extended inwardly of the case 33, and the handle 49 is exposed outside the guide rail 4 through the window 34 of the case 33 as shown in FIG.

Further, a return spring 52 formed of a torsion coil spring is mounted on the return lever 48 so as to maintain the handle 49 in a vertical state.

The return lever 48 is connected to the handle 4
At 9, the swinging operation is performed about the support shaft 51, and the swinging movement causes the locking piece 50 in the case 33 to engage with the engaging piece 39 of the slide bar 38 from below the engaging piece 39. Has become.

In the present embodiment configured as described above, in a normal state, electric power is supplied to the motor 9, and the shutter curtain 3 is electrically opened and closed. At this time, the clutch 10 is in a connected state, that is, the urging force of the tension coil spring 46 for pulling the wire 11 is generated by the actuator 4 of the actuator 41 of the latch mechanism 37.
2 regulates the large diameter portion 42 a by positioning the large diameter portion 42 a in the slide hole 45.

When the power is not supplied due to a power failure or the like, or in an emergency, the shutter curtain 3 in the closed state is braked at the closed position to be stopped. At this time, in order to manually open the shutter curtain 3, the manual / electric switching device 1 is operated.
This operation will be described in detail below.

First, the handle 18 of the operation knob 17 provided on the baseboard slat 6 located at the lowermost edge of the shutter curtain 3 in the closed state is raised from below and raised.

When the operation knob 17 slides up, the operating rod 21 starts to slide in the horizontal direction due to the inclination of the elongated hole 20 (see FIGS. 5 and 6).

When the operating rod 21 slides, its tip 24a protrudes from the end of the baseboard slat 6 and is located near the lower end of the guide rail 4 and is exposed.
7 comes into contact with the tip of the actuator 42.

When the operating member 42 is pushed against the urging force of the compression spring 44 by the projection of the tip 24a of the operating rod 21, the operating member 42 is moved to the guide rail 4 and the case 33.
, The large diameter portion 42 a of the actuator 42 moves backward through the slide hole 45 of the slide bar 38.

In the slide hole 45, the engagement between the large diameter portion 42a of the actuator 42 and the large diameter hole 45a of the slide hole 45 is released, and the small diameter portion 42b is positioned in the slide hole 45. As a result, as shown in FIG.
It moves downward by the urging force of.

Then, the wire 11 connected to the slide bar 38 is pulled downward, whereby the clutch 10 is disconnected, that is, the connection between the motor 9 and the winding wheel 8 by the clutch 10 is released.

Then, the shutter curtain 3 is manually operated.
Is released. At this time, since the hand is held on the handle 18 of the operation knob 17 from below, the opening operation of the shutter curtain 3 is performed continuously.

In this manual state, the return lever 48
The engaging piece 39 of the slide bar 38 in the case 33 is substantially in contact with the upper surface of the tip of the locking piece 50.

When the supply of power is restored, the rotation of the winding wheel 8 is returned to the electric state, that is, the clutch 10 is connected, and the motor 9 and the winding wheel 8 are connected.
First, the handle 49 of the return lever 48 is pulled out from above, and the return lever 48 is swung forward.

Then, by this swing operation, the engaging piece 39 in contact with the locking piece 50 of the return lever 48 is moved upward, and the slide bar 38 is raised against the urging force of the extension coil spring 46. .

When the slide bar 38 rises, the actuator 42 in the slide hole 45 moves from the small-diameter hole 45b to the large-diameter hole 45a.
4, the large-diameter portion 42a is located in the large-diameter hole portion 45a, and is in a protruding state.
6 restricts the generation of the biasing force.

Then, the slide bar 38 stops at the raised position, and returns to the original electric state, that is, the wire 11.
Is released, and the clutch 10 is connected,
The state returns to the state in which the normal rotation of the winding wheel 8 is electrically driven.

Therefore, according to the present embodiment, in a state where the shutter curtain 3 is closed, the supply of electric power to the motor 9 is stopped, or in an emergency, the shutter curtain 3 is manually opened. By operating the operation knob 17 provided on the baseboard slat 6 constituting the lowermost edge of the shutter curtain 3 when it is desired to operate the latch mechanism 37 arranged in the guide rail 4 can be operated. Thereby, the clutch 1 for connecting the motor 9 and the winding wheel 8 for winding the shutter curtain 3 is formed.
0 is disconnected, that is, the wire 1 of the clutch 10 is connected to either of the left and right guide rails 4 and 5.
By performing the above operation on the shutter curtain 3 without considering whether the mechanism 1 is extended and a mechanism for cutting the shutter is provided, the shutter curtain 3 in the electric state can be switched to the manual state. It becomes possible.

From this, the manual / electric switching device 1
A portion constituted by the latch mechanism 37 and the extension coil spring 46 may be provided on either of the left and right guide rails 4 and 5, and the configuration of this device is divided into a right-hand specification and a left-hand specification as in the related art. It is not necessary to prepare, and versatility can be obtained, and even if the arrangement position is changed at the construction site, it can be handled.

Further, according to the present embodiment, the operation for switching from electric to manual is provided on the skirting slat 6 by the operation knob 17 which is slid upward, so that the shutter curtain 3 can be raised. This is the same operation as the normal manual operation of the shutter curtain 3. Since the operation knob 17 is provided with the handle 18, the shutter can be switched from the electric state to the manual state and at the same time, the shutter is continuously operated. The curtain 3 can be raised. In other words, the operation of opening the shutter curtain 3 is an operation of switching from the electric state to the manual state, and the shutter curtain 3 is manually moved without being conscious of the switching. Can be opened.

Further, the return operation from the manual state to the electric state can be easily performed by the return lever 48, and there is no complexity.

In the above-described embodiment, an example has been described in which the latch mechanism 37 disposed in the guide rail 4 is constituted by the actuator 41 having the shaft-like actuator 42. Reference numeral 37 may be any other configuration as long as it is a mechanism that regulates the generation of the urging force by the urging member (tensile coil spring) 46 and releases the restriction of the generation. For example, a link mechanism as shown in FIG. 53
May be used.

The latch mechanism 37 is connected and fixed to the distal end 11a of the wire 11 and is slidable in the vertical direction. The slide bar 38 has a link piece 53a connected to the lower end of the slide bar 38 and a guide rail. The link mechanism 53 is connected to a link piece 53b pivotally supported by the case 33 fixed to the 4 (5) side, and an urging member 46 made of a compression coil spring for urging the slide bar 38 downward. Is done.

In a normal state, that is, in a state where the shutter curtain 3 is operated by electric power, the link mechanism 53 is operated.
The link pieces 53a and 53b of the above are in a vertical state, that is, maintain a straight state without rotating as a vertical dead center,
In a state where the urging member 46 resists the downward urging force, the generation of the urging force is regulated, that is, the wire 11 is not pulled (FIG. 1).
1).

To switch from the motorized state to the manual state, the same operation knob 17 as in the above-described embodiment is used.
And upper and lower link pieces 53a, 53
By pressing the connecting portion b from the side (arrow A in FIG. 11), the straight state of each link piece 53a, 53b is released,
As a result, the urging force of the urging member 46 acts, and the slide bar 38 slides downward, that is, the wire 11 is pulled. FIG.
As shown in FIG. 2, by providing the contact block 54 at the connecting portion of the link pieces 53a and 53b, the contact with the operating rod 21 is facilitated.

Further, as shown in FIG. 11, a lever member 48 extending in the horizontal direction is provided in the middle of the slide bar 38, and if this is used as a return means, the lever member 48 is pulled up vertically upward ( By the arrow B in FIG. 11, the latch mechanism 37 including the link mechanism 53 returns, that is, returns from the manual state to the electric state.

In the above-described embodiment, the structure of the operation knob 17 provided on the baseboard slat 6 and the operating rod 21 is changed to the oblong slot 20 formed in the operation knob 17.
Has been described, the operating rod 21 is slid in the horizontal direction. However, as shown in FIGS. 13A and 13B, the link mechanism 55 is moved between the operation knob 17 and the baseboard slat 6 as shown in FIGS. , The operating rod 21 may be slid in the forward and backward directions by the link mechanism 55. Further, as shown in FIG. The operation knob 17 may be slid directly to slide the operating rod 21. Further, as shown in FIG. 15, a swinging lever is provided on the skirting board slat 6, and this is used as the operation knob 17, The operating rod 21 may be connected to the tip of the swinging operation knob 17 via a pin 56 so that the operating knob 21 swings to move the operating rod 21 forward and backward. The operation knob 17 is provided at the base end of the operating rod 21 (FIG. 14), and the lever-shaped operation knob 17 (FIG. 1).
In the case of 5), preferably, it is provided at two places near the left and right ends with respect to the baseboard slat 6.

Further, in the above-described embodiment, an example has been described in which the operating knob 21 is raised to slide the operating rod 21 forward and backward. However, the operating lever 21 is moved forward and backward by lowering the operating knob 21. (See FIGS. 13B and 13C).

In the above-described embodiment, the operating rod 2
The example in which the operation knob 17 is protruded from the end of the baseboard slat 6 by the operation knob 17 to switch from the electric state to the manual state has been described, but the tip 24a of the operating rod 21 protrudes from the baseboard slat 6. The structure may be such that switching is performed by setting the state to the normal state and sliding backward from the protruding state.

In this case, for example, as shown in FIG. 15B, a hook-shaped engaging portion 60 which is formed to be bent downward is provided at the tip of the operating rod 21, and FIG.
As shown in FIG. 5, a plate-shaped interlocking member 61 which is swingable in a hinge shape is provided in the guide rail 4, and an engagement block 62 is provided on a lower end plate surface of the interlocking member 61 so as to engage with each other. Is configured as follows. When the shutter device is switched from electric to manual, the operating lever 21 is operated by the operation knob 17.
Is slid, and the distal end engaging portion 60 of the operating rod 21 is moved.
By swinging the interlocking member 61 through the engagement block 62 and transmitting the swing to the latch mechanism 37, the wire 11 is pulled. Although not shown, the latch mechanism 37 has substantially the same configuration as that of the above-described embodiment, and is configured so that the urging force of the urging member 46 is generated when the latch mechanism 37 comes into contact with the swing of the interlocking member 61. .

As shown in FIG. 16B, a hook-shaped engaging portion 63 which is formed to be bent downward is provided at the tip of the operating rod 21 in the same manner as described above. An interlocking member 64 is provided so as to be slidable in the vertical and vertical directions.
That is, the horizontal sliding movement of the operating rod 21 is converted into the vertical sliding movement by the engagement of the engaging portion 63 and the engaging block 65, and the interlocking member 64 is slid downward. And the latch mechanism 37
It may be configured to be transmitted to

Further, in the above-described embodiment, the skirting slat 6 constituting the lower end, which is the moving end of the shutter curtain 3, has been described as the slat constituting the shutter curtain 3, but the manual / electric switching device of the present invention is used. Is not limited to the baseboard slats, but may be any slat forming the shutter curtain 3, for example, a slat at an intermediate position. In this case, the latch mechanism 37 is disposed at an intermediate portion of the guide rail 4 corresponding to the position of the operating rod 21 provided on the slat 6, and a return lever 48 is positioned outside the guide rail 3 near the guide rail 4. Will be done.

Further, in the above-described embodiment, an example of a separate structure in which the guide rail 4 is composed of the guide rail main body 28 and the outer frame body 29 has been described. The guide rail 4 may be configured to be integrally formed with the guide rail 4.

Further, in the above-described embodiment, the example in which the manual / motor-driven switching device is provided is described as an example in which the shutter curtain 3 is opened when the shutter curtain 3 is raised. However, the shutter curtain moves in the horizontal direction. The manual / electric switching device of the present invention can be applied to a horizontal pulling shutter that opens and closes, and a substantially horizontal shutter device provided on a roof of a house or the like.

[0077]

As described above, according to the manual / electric switching device for the electric shutter of the present invention, when the supply of power to the drive source is stopped or in an emergency, the shutter curtain is manually operated. By operating the operation knob provided on the slat that constitutes the shutter curtain when it is desired to open it, it becomes possible to operate the latch mechanism provided in the guide rail, and thereby, the drive source and the shutter curtain are connected. The connection state of the clutch that connects to the winding unit to be wound will be disconnected, that is, consider which of the guide rails on either side has a clutch wire extending and a mechanism for disconnecting it installed. Not
By operating the operation knob provided on the shutter curtain side, it becomes possible to switch the shutter curtain in the electric state to the manual state.

From the above, the mechanism portion of the manual / electric switching device, which is connected to the wire connected to the clutch, may be provided on either of the guide rails on both edges of the building opening. It is not necessary to prepare the configuration of this device separately for the right specification and the left specification, for example.
The versatility can be obtained, and even if the arrangement position is changed at the construction site, it is possible to cope with the change.

In particular, a shutter for opening the shutter curtain is provided by arranging an operation for switching from electric to manual operation on the slat and sliding the shutter curtain in the same direction as the opening movement of the shutter curtain. The operation is the same as the normal manual operation for the curtain, and by providing a handle on this operation knob, it is possible to switch from the electric state to the manual state and simultaneously open the shutter curtain at the same time. In other words, the operation of opening the shutter curtain is an operation of switching from the electric state to the manual state, and it is possible to obtain an effect that the shutter curtain can be manually opened without being conscious of switching.

Further, the return operation from the manual state to the electric state can be easily performed by the return means, and the restoration to the electric state can be performed without complexity.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an electric shutter having a manual / electric switching device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the manual / electric switching device according to the embodiment;

FIG. 3 is an exploded perspective view showing a part of the manual / electric switching device.

FIG. 4 is a side sectional view of the assembled state.

FIG. 5 is a perspective view of the same.

FIG. 6 is a front view illustrating the operation of the slat portion.

FIG. 7 is an exploded perspective view showing a part of the manual / electric switching device.

FIG. 8 is a side sectional view showing the same part.

FIG. 9 is a perspective view of the same.

FIG. 10 is a side sectional view showing the same operation.

FIG. 11 is a schematic perspective view showing a part of a manual / electric switching device according to another embodiment.

FIG. 12 is a front view of the same part cut.

13A is a side sectional view showing a part of a manual / electric switching device according to another embodiment; FIG. 13B is a front view showing the same; FIG. 13C is a front view showing the same operation;

FIG. 14 is a schematic perspective view showing a part of a manual / electric switching device according to another embodiment.

FIG. 15A is a cross-sectional plan view of a manual / electric switching device according to another embodiment. FIG.

FIG. 16A is a cross-sectional plan view of a manual / electric switching device according to another embodiment. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Manual / Electric switching device 2 ... Building opening 3 ... Shutter curtain 4, 5 ... Guide rail 4a ... Groove part 6 ... Slat (baseboard slat) 8 ... Shutter curtain winding part (winding wheel) 9 ... Drive source (motor) 10) Clutch 11 ... Wire 17 ... Operating knob 18 ... Handpiece 21 ... Operating rod 24a ... Tip 37 ... Latch mechanism 46 ... Biasing member (tensile coil spring) 48 ... Return means (Return lever)

Claims (4)

[Claims] 1. An electric shutter provided in a clutch for transmitting power between a drive source constituting an electric shutter and a shutter curtain take-up unit, and switching the rotation of the shutter curtain take-up unit between a manual state and an electric state. Manual
In the electric switching device, the shutter curtain is configured such that both edges are inserted into respective grooves formed in a pair of guide rails disposed on both opposite edges of the building opening and guided to move. A strip-shaped slat; an operation knob disposed at a desired position in the middle of the slat in the longitudinal direction; and an interlockingly connected to the operation knob, disposed along the longitudinal direction of the slat, and An operating rod that slides along the longitudinal direction of the slat by operation of a knob and has a distal end that advances and retreats from an end of the slat, and a wire that is disposed in the groove of the guide rail and is connected to the clutch And a biasing member having a biasing force to pull the wire and disconnect the clutch, and disposed in a groove of the guide rail to engage with the biasing member. The generation of the urging force by the urging member is restricted, and the restriction of the generation of the urging force by the urging member is released in conjunction with the forward / backward movement of the operating rod by engaging with the tip of the operating rod. A latch mechanism; and return means located outside of the guide rail and coupled to the latch mechanism to return the latch mechanism to an engaged state for restricting generation of an urging force by the urging member. A manual / electric switching device for an electric shutter. 2. The manual / electric switching device for an electric shutter according to claim 1, wherein the slat comprises a skirting slat constituting a moving end of the shutter curtain. 3. The electric shutter according to claim 1, wherein the operation knob is slidably movable in the same direction as the direction of movement of the shutter curtain, and a handle is protruded. Manual / electric switching device. 4. The manual shutter according to claim 1, wherein the operation knob is supported by the slat and is swingable in a longitudinal direction of the slat.
Electric switching device.