JPH1037636A - Shutter drive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a dead space in a shutter case. SOLUTION: This drive device 1 is laid out in parallel with a take-up shaft which winds up a shutter curtain S and interlockingly connected to the take-up shaft 9 and is arranged to have a drive shaft 22 which drives turningly the take-up shaft 9. In this case, this drive device 1 is laid out in an inner corner at the lower part of a shutter case 2 along the take-up shaft 9 laid out in the shutter case 2 formed in rectangular box shape. A case 14 which forms the outside is formed, for example, in the shape of a polygonal column having a slope surface 21 which is close to the take-up shaft 9 and opposed to the take-up shaft 9 and a surface which comes in contact with an interior wall surface 2a in the inner corner area 2B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter drive device linked to a winding shaft for winding and rewinding a shutter curtain in an electric shutter.

[0002]

2. Description of the Related Art In an electric shutter, winding and rewinding of a shutter curtain is performed by rotating the winding shaft by a driving device having a built-in driving motor connected to the winding shaft. The take-up shaft and the take-up shaft are arranged in a shutter case that houses the shutter curtain. The drive device and the take-up shaft are arranged in parallel, and the output shaft and the take-up shaft of the drive device are chained. The configuration is such that the space is saved.

[0003]

However, in the above-described arrangement structure of the winding shaft and the driving device, the driving device has a unit structure including a reduction gear and a control circuit board for controlling the driving motor. It is configured to be covered with a rectangular box-shaped case so that they are not exposed for the purpose of preventing adhesion of dust and the like, and the shutter case is usually formed in a rectangular box shape, With respect to the position of the take-up shaft in the shutter case, the position of the drive device is set at the lower inner corner along the take-up shaft in the shutter case. The case corners are juxtaposed in a state of being close to the winding shaft, and there is a disadvantage that a large dead space around the driving device in the shutter case is required.

In order to solve the above-mentioned problems, the present invention improves the positional relationship between a winding shaft and a driving device in a shutter case and reduces a dead space formed in the shutter case. It is an object to provide a possible shutter drive.

[0005]

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The driving device for a shutter according to the present invention is arranged in parallel with a winding shaft 9 for winding up a shutter curtain S, and is linked with the winding shaft 9 to drive the winding shaft 9 to rotate. 22. The drive device 1 having
For example, the shape of a case 14 that is disposed at an inner corner 2B (2U) of the shutter case 2 along the winding shaft 9 that is disposed inside the box-shaped shutter case 2 and that forms the outside. Are formed in a polygonal column shape having at least a surface 21 close to the winding shaft 9 and facing the winding shaft 9.

Further, the shutter driving device of the present invention is disposed in parallel with a winding shaft 9 for winding the shutter curtain S, and is interlocked with the winding shaft 9 so that the winding shaft 9 is connected to the winding shaft 9. A drive device 1 having a drive shaft 22 to be driven to rotate, for example, an inner corner 2B (2U) of the shutter case 2 along the winding shaft 9 provided in the shutter case 2 formed in a box shape. The case 14 forming the outside has at least a surface 21 which is at least close to the winding shaft 9 and faces the winding shaft 9, and the inner corner portion 2B
(2U) is characterized in that it is formed in a polygonal column shape having a surface in contact with the inner wall surface 2a.

With such a configuration, in the shutter case 2, the driving device 1 has a surface 21 facing and approaching the winding shaft 9 on the outer shape of the case 14.
The distance between the winding shaft 9 and the driving device 1 can be reduced, the dead space of the shutter case 2 is reduced, and the shutter case 2 can be made more compact.

[0008]

FIG. 1 is a side sectional view showing an embodiment of a shutter driving device according to the present invention.

First, a shutter case 2 in a shutter device in which the shutter driving device 1 of the present invention is disposed.
Will be described.

The shutter case 2 is formed in a substantially rectangular box shape, for example, by a rectangular top plate 3, a bottom plate 4, a front plate 5, a back plate 6, and a substantially rectangular left and right side plate 7, respectively. A part of the bottom plate 4 has a slit-shaped opening 8, and as shown in FIG. 1, a slit-shaped opening 8 is formed on an outer wall surface W along an upper edge of an opening constituting a window or the like of a building such as a house. And is horizontally disposed on the outer wall surface W.

The left and right side plates 7 are provided with bearings (not shown) on opposite inner surfaces, respectively, so as to support the end of the take-up shaft 9. , The winding shaft 9 is disposed horizontally.

Note that the shutter case 2 of the winding shaft 9
The mounting position in the inside is located substantially at the center of the side plate 7 and, as shown in FIG. 1, slightly close to one upper corner 2U of the back plate 6 which is in contact with the outer wall surface W of the building. ing.

A driven sprocket 10 is attached to the winding shaft 9 and is linked to a shutter driving device 1 to be described later.

Next, the shutter driving device 1 includes an electric motor 11, a reduction gear unit 12, and a control unit 13 and a case 14 in which these units are built.

The reduction gear section 12 is composed of a group of gears connected to the output shaft of the electric motor 11, and is arranged on the output shaft side of the electric motor 11 so as to be substantially integral with the electric motor 11. ing.

The control unit 13 has a control circuit board 15 on which electronic components such as a transformer and a control circuit are mounted, and an external power supply (commercial power supply). A connection terminal and a connector 16 for connecting to a switch and an operation switch are provided. The control unit 13 is electrically connected to the electric motor 11.

The control circuit board 15 of the control unit 13
Is formed in a strip shape and a slightly long rectangular shape, and the substrate 15
Among the electronic components mounted thereon, the component 17 having a large height is disposed near the center in the short width direction.

The electric motor 11, the reduction gear unit 12, and the control unit 13 are housed in a case 14.

As shown in FIGS. 1 and 2, the case 14 has a bottom plate 18, a top plate 19, and a pair of side plates 2 on the outside.
0, it is formed in a long rectangular parallelepiped shape, and in the present embodiment, a pair of ridges along the longitudinal direction located at the upper portion on the side of the top plate 19 are chamfered at a chamfer angle of about 45 °. Thus, a pair of inclined surfaces 21 are formed, and a hexagonal column shape having a substantially hexagonal cross section is formed.

In the case 14, the electric motor 11, the reduction gear section 12, and the control section 13 are housed in series.

An electric motor 11 and a reduction gear portion 12 are built in one half 14a on one end side of the case 14, and a drive shaft 22 which is connected to an output shaft of the electric motor 11 via the reduction gear portion 12 extends. The drive shaft 22 is provided with a drive sprocket 23. The outer diameter of the driving sprocket 23 is set so as not to protrude from the outside of the case 14 when the driving sprocket 23 is attached to the driving shaft 22.

A control unit 13 is provided in the other half 14b of the other end of the case 14, and a circuit board 15 is attached along a bottom plate 18 of the case 14, as shown in FIG.
Connectors 16 and terminals provided in the control unit 13;
Adjustment knobs and the like are exposed from the other end of the case.

In the driving device 1 according to this embodiment,
As shown in FIG. 1, a mounting piece 24 protrudes from one inclined surface 21 of the case 14.

The driving device 1 is disposed inside the shutter case 2 described above. The arrangement state is such that the bottom plate 18 of the case 14 is placed on the bottom plate 4 of the shutter case 2 so as to oppose and abut against the bottom plate 4 of the shutter case 2 and, as shown in FIG. 5
And the winding shaft 9 is fixed to the inner wall surface 2a of the front plate 5 and the longitudinal direction is along the winding shaft 9. They are arranged in parallel.

As a result, the other inclined surface 21 formed on the upper part of the case 14 forming the outside of the driving device 1
However, it comes to face the winding shaft 9 as shown in FIG. Note that the distance between the center axis of the winding shaft 9 and the center axis of the drive shaft 22 is determined by the maximum winding diameter of the shutter curtain S wound around the winding shaft 9, and is slightly larger than the radius of the maximum winding diameter. The inclined surface 2 of the driving device 1
1 is set to be located.

The driving sprocket 2 of the driving device 1
3 and the driven sprocket 10 of the winding shaft 9 are connected by a connecting member 25 such as a chain, and the rotational driving force of the driving device 1 is transmitted to the winding shaft 9.

Therefore, according to the shutter driving device configured as described above, the shape of the case 14 forming the outside is formed into a hexagonal prism shape, and the outside surface of the case 14 contacts the inside wall surface 2a of the inside corner 2B of the shutter case 2. The winding shaft 9 and the driving device 1 can be disposed close to each other in the shutter case 2 because the inclined surface 21 is formed so as to face the winding shaft 9 while being in contact with the winding shaft 9. Becomes possible,
That is, the distance between the winding shaft 9 and the driving shaft 22 of the driving device 1 can be set to be short, so that the dead space in the shutter case 2, that is, a wasteful volume can be reduced. The outer shape of the shutter case 1 in which the take-up shaft 9 and the driving device 1 are housed can be reduced. Since the shutter case 2 can be reduced in size, the design of the shutter case 2 in a state of being installed in a building is also improved.

In the above-described embodiment, the inclined surface 21 of the case 14 of the driving device 1 is formed as a pair,
Although the example in which the outer shape of 4 is a hexagonal column shape has been described, the inclined surface 21 may be provided in at least one position, that is, the inclined surface 21 may have a surface 21 that is close to and opposed to the winding shaft 9. As shown in FIGS. 3 (a) to 3 (e), it may be formed in a triangular prism shape, a quadrangular prism shape, a pentagonal prism shape, a hexagonal prism shape, or the like.

As shown in FIGS. 4A to 4C,
The arrangement of the driving device 1 according to the above-described embodiment may be changed and configured. In this case, as shown in FIGS. 4B and 4C, the inner corner 2B of the shutter case 2 and the driving device 1
By forming the space 26 between the case 14 and the power supply line or the like, the space 26 can be inserted into the space 26.

Also in this case, at least the surface 21 is provided close to the winding shaft 9 and opposed to the winding shaft 9. Preferably, the surface 21 and the inner corner 2 B of the shutter case 2 are formed. It is configured to have a surface that comes into contact with the inner wall surface 2a.

Further, in the above-described embodiment, an example has been described in which the drive device 1 is disposed at the lower inner corner 2B, but as shown in FIG. 5, it is disposed at the upper inner corner 2U. And the same effect as described above can be obtained.

Further, the example in which the surface facing the winding shaft is constituted by one inclined surface has been described. However, as shown in FIG. 6, the surface 21 facing the winding shaft 9 has two concave shapes. You may be comprised in the above surface. In this case, a large space, that is, a large volume in the case 14 of the driving device 1 can be formed.

Further, in the above-described embodiment, the case 14 of the driving device 1 is formed in a single box shape.
Although the example in which the electric motor 11, the reduction gear unit 12, and the control unit 13 are built in 4 has been described, they are separately configured, and the outer shape of the case 14 is the same shape.
The same effect can be obtained as long as one driving device 1 is connected to each other and the assembled outer shape is a polygonal prism shape.

In the above-described embodiment, the shape of the shutter case 2 is changed to the rectangular plate members 3, 4, 5, 6, and 6.
Although the example in which the shutter case 2 is formed in a rectangular box shape is described in 7, the outer shape of the shutter case 2 is not limited thereto. However, the same effect as described above can be obtained.

[0035]

As described above, according to the shutter driving device of the present invention, the shape of the case forming the outside is a polygonal prism shape, and one surface of the outer surface is brought close to the winding shaft, and The winding shaft and the driving device can be arranged close to each other in the shutter case, that is, the distance between the winding shaft and the driving shaft of the driving device can be reduced. The distance can be set short, whereby the dead space in the shutter case, that is, a useless volume can be reduced, and the outer shape of the shutter case in which the winding shaft and the driving device are housed is reduced. It becomes possible.

Further, by forming a surface facing the take-up shaft and a surface abutting on the inner wall surface at the inner corner of the shutter case outside the case of the driving device, the driving device is provided inside the shutter case. And a stable space can be provided, and a dead space in the shutter case can be reduced, and a sufficient space can be formed in a case of the driving device. For example, the space is provided in the case. Even if the electronic component has a height, the electronic component can be disposed, that is, a drive device and a shutter case with high space efficiency can be provided.

Since the size of the shutter case can be reduced, the design of the shutter case in a building can be improved, and the shutter device can be made more compact.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a shutter driving device according to the present invention.

FIG. 2 is a schematic side view of the driving device.

FIGS. 3A to 3E are side sectional views showing other embodiments.

FIGS. 4A to 4C are side sectional views showing other embodiments.

FIG. 5 is a side sectional view showing another embodiment.

FIG. 6 is a side sectional view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Drive device 2 ... Shutter case 2a ... Inner wall surface 2B, 2U ... Inner corner part 9 ... Winding shaft 14 ... Case 21 ... Surface (inclined surface) 22 ... Drive shaft S ... Shutter curtain

Claims (2)

[Claims] 1. A drive device having a drive shaft disposed in parallel with a take-up shaft for taking up a shutter curtain, and connected to and interlocked with the take-up shaft to rotate and drive the take-up shaft. It is arranged at the inner corner of the shutter case along the winding shaft arranged in the shutter case, and the shape of the case forming the outside is at least close to the winding shaft and the winding shaft A shutter driving device characterized in that it is formed in a polygonal column shape having opposing surfaces. 2. A drive device having a drive shaft disposed in parallel with a take-up shaft for taking up a shutter curtain, and connected to and interlocked with the take-up shaft to rotate and drive the take-up shaft. It is arranged at the inner corner of the shutter case along the winding shaft arranged in the shutter case, and the shape of the case forming the outside is at least close to the winding shaft and the winding shaft A shutter driving device, which is formed in a polygonal column shape having an opposing surface and a surface in contact with an inner wall surface at the inner corner.