JP2606605B2 - Wiring structure of electric shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring for an electric shutter with a built-in switch which winds a shutter curtain by rotating a winding wheel by means of a switch such as an electric motor mounted on a fixed shaft. It is about structure.

[0002]

2. Description of the Related Art An electric shutter having a structure in which an opening / closing unit constituted by an electric motor or the like is mounted on a fixed shaft, and a winding wheel is rotated by the opening / closing unit to wind up a shutter curtain, that is, an electric shutter having a built-in opening / closing unit. The shutter is connected to multiple wires, such as a power supply line that supplies power to the switch, an operation line for operating the switch, and a manual operation transmission line for manually operating the switch. To operate the built-in switchgear.

Conventionally, the wiring of each line for the electric shutter switch as described above is passed through a hole formed on the side surface of a hollow fixed shaft, and the wiring is passed through the inside of the shaft. There is a structure disclosed in Japanese Patent Publication No. Hei 5-32631 in which a fixed inner ring is provided on a fixed shaft, a winding wheel is supported on the outer periphery, and wires are passed through through holes provided in the fixed inner ring.

[0004]

However, in the above-mentioned conventional wiring structure, the inside of the fixed shaft has a small diameter and a long length, and bolts and split pins for fixing the fixed shaft are used. However, there is a drawback that it is very difficult to insert each line such as a power supply line.

In the latter wiring structure, since the fixed inner ring supports the winding wheel and requires strength, it is impossible to drill a large-diameter through-hole. Has the disadvantage that a large number of small-diameter through holes must be formed in order to pass a large number of wires connected to the switchgear, and a large number of through holes are formed. In this case, the strength of the fixed inner ring is reduced.

Further, in recent years, each line has been subjected to a terminal treatment such as a connector so that wiring can be easily performed by connection with the connector. However, since this connector has a larger cross-sectional shape than a line such as a power supply line. However, in the above-described conventional wiring structures, there is a problem that the connector cannot pass through the through-hole at the time of wiring and wiring becomes impossible.

Therefore, in order to solve the above-mentioned problems, the present invention requires that the wiring of each line such as a power supply line connected to a switch mounted on the fixed shaft is not hindered by the winding wheel and the strength of the fixed shaft and the like is reduced. Can be performed without lowering
An object of the present invention is to provide a wiring structure of an electric shutter that can easily perform wiring work.

[0008]

Next, means for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The wiring structure of the electric shutter according to the present invention is an electric shutter in which winding wheels 5 and 9 for rotating and driving the shutter curtain 1 by a switch 4 mounted on the fixed shaft 3 are rotatably mounted on the fixed shaft 3. In the wiring structure of (1), at least the outermost winding wheel 9 of the fixed shaft 3 is fixed to the fixed ring 11 fixed to the fixed shaft 3.
And a rotating ring 12 rotatably attached to the outer periphery of the fixed ring 11. A spacer 10 that divides a space between the fixed ring 11 and the fixed shaft 3 into a plurality of parts is interposed. It is characterized in that a wiring from the outside is drawn into and connected to the switchgear 4 through the gap 18.

Further, the wiring structure of the electric shutter according to the present invention comprises winding wheels 5, 9 for rotating and driving the shutter curtain 1 by a switch 4 mounted on the fixed shaft 3.
In the wiring structure of the electric shutter rotatably attached to the fixed shaft 3, at least the outermost winding wheel 9 of the fixed shaft 3 is fixed to a fixed ring 11 fixed to the fixed shaft 3, A rotating ring 12 rotatably attached to the outer periphery of the ring 11, and a C-shaped spacer 10 having a part of the ring cut away interposed between the fixed ring 11 and the fixed shaft 3. Fixed ring 1 by spacer 10
An external wiring is drawn into and connected to the switch 4 through a gap 18 between the fixed shaft 1 and the fixed shaft 3.

[0010]

The winding wheel 9 composed of a fixed ring 11 fixed to the fixed shaft 3 and a rotating ring 12 rotatably mounted on the outer periphery of the fixed ring 11 is disposed at least at the outermost end of the fixed shaft 3. The wiring to the switch 4 mounted on the fixed shaft 3 is passed through a gap 18 formed by dividing the space into a plurality of spaces by a spacer 10 interposed between the fixed ring 11 and the fixed shaft 3. It is pulled in from the outside and connected to the switchgear 4.

Also, in the case where the spacer 10 is a C-shaped spacer 10 in which a part of a ring is cut off, wiring is drawn in from the outside through a gap 18 formed by the spacer 10 and mounted on the fixed shaft 3. Connected to the switch 4 to be operated.

[0012]

【Example】

I. First Embodiment FIG. 1 is a partially omitted front sectional view showing a first embodiment of a wiring structure of an electric shutter according to the present invention, and FIG. 2 is an enlarged front sectional view of a main part according to the embodiment. First, shutter curtain 1
The shutter case is provided above the opening of the building. As shown in FIG. 1, a fixed shaft 3 is provided between a pair of brackets 2 and 2 which are fixed to face each other. , 2 whose rotation is restricted and fixed.

The fixed shaft 3 is formed of a hollow pipe or the like, and an electric motor 4a, a control panel 4b,
Brake mechanism 4c, clutch mechanism 4d, output wheel 4
The switch 4 composed of e or the like is mounted.

A winding wheel 5 is mounted near both ends and an intermediate portion of the fixed shaft 3.

One end 3a of the fixed shaft 3 of each winding wheel 5
Take-up wheel 5a and intermediate take-up wheel 5b
Are mounted on the outer periphery of the fixed shaft 3 (not shown).
It is rotatably supported via.

An output wheel 4e of the opening / closing device 4 is connected to a take-up wheel 5b at an intermediate portion through a connecting flange 6.
Are linked together.

Further, as shown in FIG. 1, a balance spring 7 is connected between the take-up wheel 5a at one end 3a and the take-up wheel 5b at the intermediate portion and the fixed shaft 3, and each of the take-up wheels 5a Of the winding direction of the
The hanging weight at the time of unwinding the shutter curtain 1 is balanced.

The outer periphery of each winding wheel 5 is connected by an auxiliary pipe 8 and is linked with a winding wheel 5b at an intermediate portion which is driven to rotate by a switch 4 so that each winding wheel 5 is driven.
Is designed to rotate.

Next, the outermost winding wheel 9 located on the other end 3b of the fixed shaft 3, as shown in FIGS.
It comprises a fixed ring 11 having a spacer 10 and a rotating ring 12. As shown in FIG. 2, the fixed ring 11 of the winding wheel 9 has an inner diameter larger than the outer diameter of the fixed shaft 3, and a temporary fixing hole 13 and a fixing hole 14 are respectively provided at opposing locations on the peripheral side plate. Has been drilled.

As shown in FIG. 3, the spacer 10 is formed as a pair, and has an outer surface curved along the inner peripheral surface of the fixed ring 11 and an inner surface curved along the outer peripheral surface of the fixed shaft 3. And are formed in a block-like substantially C-shaped shape having a thickness. The temporary fixing projections 15 are formed on the outer surface, and as shown in FIG.
A through-hole 16 penetrating in parallel with is provided.

Each spacer 10 is arranged along the inner surface of the fixed ring 11, and the
The fixing ring 11 is attached to the fixed shaft 3 together with the spacers 10. As means for attaching, as shown in FIG.
The fixing pin 17 such as a split pin as a fixing means is passed through the fixing hole 14 formed in the spacer 10 and the through hole 16 formed in the spacer 10.

In a state where the fixed ring 11 is attached to the fixed shaft 3 via the spacer 10, as shown in FIG.
Each spacer 10 is interposed so as to sandwich the outer peripheral surface of the fixed shaft 3 from above and below in the figure, and divides the space between the fixed shaft 3 and the fixed ring 11 into two parts. A gap 18 is formed.

As shown in FIG. 2, the rotating ring 12 is supported by the fixed ring 11 via a bearing 19 so as to be rotatable. This rotary ring 12 is formed in the same outer shape as the other winding wheels 5 described above.

In the gap 18 in the space between the fixed shaft 3 and the fixed ring 11 divided by each spacer 10,
As shown in FIG. 3, each line L such as a power supply line of the electric motor 4 a of the switch 4, electric wiring such as a push button switch, and a wire for manual control for manually releasing the clutch mechanism is provided.
It is passed through the bracket 2 from outside the shutter case, and is retracted and connected to the switch 4 as shown in FIG.

Incidentally, the upper ends of the shutter curtains 1 are connected to the respective winding wheels 5 and 9 via hanging members (not shown) by fastening members such as bolts. The take-up wheels 5 and 9 rotate, and take-up and rewind of the shutter curtain 1 are performed.

Accordingly, in the wiring structure of the electric shutter according to the first embodiment having the above-described structure, the wiring on the outer surface of the fixed shaft 3 is not routed through the fixed shaft 3 as in the prior art, and the wires L such as the power supply line do not pass through. At the same time, since wiring is performed through the gap 18 formed by the spacers 10 of the fixed ring 11, the strength of the fixed shaft 3 is not reduced, and these lines L can be visually recognized from the outside, so that connection and adjustment operations can be easily performed. Can,
In particular, connection of the line L subjected to terminal processing such as a connector can be easily performed.

In addition, a fixed ring 11 and a fixed shaft 3
Is divided into the space between them, and each line L is passed through the gap 18, so that the strength of the fixed ring 11 that supports the rotating ring 12 of the winding wheel 9 is maintained, and there is a risk of breakage without hindrance. Absent.

Further, even if each line L is subjected to a terminal treatment such as a connector having a large cross-sectional shape, the gap 18 formed by the spacer 10 has a sufficient space, so that it can be easily passed. Wiring can be easily performed by connection with this connector.

In the above-described first embodiment, an example is described in which the spacer 10 is formed in a pair of substantially C shapes and two gaps 18 are provided by the spacers 10, as shown in FIG. Alternatively, the spacers 10 may be configured with three pieces, the space between the fixed shaft 3 and the fixed ring 11 may be divided into three by the spacers 10, and three gaps 18 may be provided. In this case, depending on the location of the gap 18,
The type of the line L passing through the gap 18, for example, an electric line and a mechanical line can be separately passed.

Further, in each of the above embodiments, an example was described in which a plurality of spacers 10 were formed and interposed between the fixed shaft 3 and the fixed ring 11, but as shown in FIG. A C-shaped spacer 10 partially cut away may be interposed between the fixed shaft 3 and the fixed ring 11. In this case as well, wiring from the outside may be drawn in through the gap 18 formed by the spacer 10 and connected to the switch 4, and the same effect as described above can be obtained.

II. Second Embodiment Next, a wiring structure of an electric shutter according to a second embodiment will be described. FIG. 6 is an exploded side sectional view of a main part showing a second embodiment of the wiring structure of the electric shutter according to the present invention, and FIG. 7 is a partially cut perspective view of the main part according to the embodiment. The second embodiment described below is an embodiment of a different shape of the winding wheel 9 which is a main part of the present invention in the first embodiment described above, and is the same as or equivalent to the first embodiment described above. Are denoted by the same reference numerals and will be described.

As shown in FIGS. 6 and 7, the take-up wheel 9 includes a spacer 10 formed of a plate and a stationary ring 11.
And a rotating ring 12.

The spacer 10 has a pair of fixed pieces 10a each having an inner surface curved along the outer peripheral surface of the fixed shaft 3 and formed in an arc shorter than a half circumference of the outer periphery of the fixed shaft 3.
And a fan-shaped mounting piece 10b integrally extended from one side of the fixing piece 10a in a flange shape. A through hole 16 is formed at a predetermined position of the fixing piece 10a. Further, on the peripheral surface of the fixed shaft 3, a fixing hole 14 is formed at a position corresponding to the through hole 16 of the spacer 10.

As shown in FIG. 6, the fixed ring 11 is a short tubular body, and has a flange 11a formed in a flange shape having substantially the same diameter as the mounting piece 10b of the spacer 10 on the opening side. And a fixing piece 10a of the spacer 10 on the bottom side.
Is formed in an endless annular shape having a substantially Z-shaped cross section, having an opening hole 11b drilled with a diameter larger than the outer peripheral surface of the outer ring.

The rotating ring 12 has an inner peripheral surface 12a that is in sliding contact with the outer peripheral surface 11c of the stationary ring 11, and has an outer peripheral surface 12b that is the outer shape of the winding wheel 9, and has a substantially U-shaped cross section. And an inner peripheral surface 12a
The thickness (t1) of the outer peripheral surface 12b is formed to be slightly smaller than the thickness (depth) t2 of the fixed ring 11 so as to fit on the outer periphery of the fixed ring 11.

As shown in FIG. 7, the rotating ring 12 is fitted into the fixed ring 11 so that the inner diameter of the fixed pieces 10a, 10a of the pair of spacers 10, 10 is the same as the outer diameter of the fixed shaft 3. Then, the mounting piece 10b of the spacer 10 is mounted on the bottom side of the fixed ring 11. Specifically, spacer 1
Reference numeral 0 is fixed to the fixed ring 11 by a rivet or the like at a position indicated by a chain line in FIG.

As means for attaching the assembled winding wheel 9 to the fixed shaft 3, a fixing hole 14 formed in the fixed shaft 3 and a through hole 16 formed in the fixing piece 10 a of the spacer 10 are fixed. It is attached by penetrating a fixing pin such as a bolt or a split pin as a means, and is fixed so as not to rotate.

That is, when the take-up wheel 9 is mounted on the fixed shaft 3, as shown in FIG. 7, each spacer 10 is mounted so as to sandwich the outer peripheral surface of the fixed shaft 3 from the left and right in the figure. The space between the fixed shaft 3 and the fixed ring 11 is divided into two, and a gap 18 is formed above and below the fixed shaft 3.

The outer peripheral surface 11c of the fixed ring 11 is in sliding contact with the inner peripheral surface 12a of the rotating ring 12, and the outer peripheral surface 11c of the fixed ring 11 is rotated between the flange 11a of the fixed ring 11 and the outer peripheral end of the mounting piece 10b of the spacer 10. The ring 12 is supported so as to be rotatable. A lubricant such as grease is applied between the fixed ring 11 and the rotating ring 12 that are in sliding contact with each other. The rotary ring 12 has the same outer shape as the other winding wheels 5 described in the first embodiment.

The gap 18 in the space between the fixed shaft 3 and the fixed ring 11 divided by each spacer 10
As shown in FIG. 7, each line L such as a power supply line of the electric motor 4a of the switch 4, electric wiring such as a push button switch, and a wire for manual control for manually releasing the clutch mechanism is provided.
It is passed through the bracket 2 from the outside of the shutter case, pulled in, and connected to the switch 4 (see FIG. 1).

The upper ends of the shutter curtains 1 are connected to the respective winding wheels 5 and 9 via hanging members (not shown) by fastening members such as bolts. The take-up wheels 5 and 9 rotate, and take-up and rewind of the shutter curtain 1 are performed.

Accordingly, in the wiring structure of the electric shutter according to the second embodiment having the above-described structure, the same effects as those of the above-described first embodiment can be obtained.
By sliding with grease without sliding the bearings between them, the structure can be simplified, the number of parts can be reduced, the cost can be reduced, and the assembly can be performed. Can be easier. Further, since the spacer 10 is formed of a plate instead of a thick block as in the first embodiment, the weight can be reduced.

In the above-described second embodiment, an example has been described in which the spacers 10 are formed as a pair, that is, divided into two, and two gaps 18 are provided by the spacers 10. However, in the first embodiment, FIG. As shown and described,
The spacer 10 is divided into three parts, and the spacer 10 is divided into three parts.
It is also possible to adopt a configuration in which the space is divided and three gaps 18 are provided.
In this case, as in the first embodiment, depending on the location of the gap 18, the type of the line L passing through the gap 18, for example, an electric wire and a mechanical wire can be separately passed.

Further, in the second embodiment, the spacer 1
0 is divided into a plurality of parts.
1 described above, but as shown and described in the first embodiment with reference to FIG. 5, a substantially C-shaped part in which a portion of the annular fixed piece 10a is cut away is formed. The spacer 10 may be configured to be interposed between the fixed shaft 3 and the fixed ring 11. Also in this case, the spacer 10
It is sufficient to draw in wiring from the outside through the gap 18 and connect it to the switchgear 4, and the same effect as described above can be obtained.

In the first and second embodiments described above, the winding wheel 9 composed of the stationary ring 11, the rotating ring 12 and the spacer 10 is located only at the outermost end of the other end 3b of the rotating shaft 3. However, it is needless to say that each of the winding wheels disposed between the bracket 2 and the opening / closing device 4 may be constituted by this.

[0046]

As described above, in the wiring structure of the electric shutter according to the present invention, wiring is performed on the outer surface of the fixed shaft and wiring is performed through the gap formed by the spacer of the fixed ring, so that a hole is formed in the fixed shaft. Without reducing the strength of this fixed shaft, these wires are visible from the outside and can be easily connected and adjusted, especially for wires that have been subjected to terminal treatment such as connectors Is easily performed.

Further, since the space between the fixed ring and the fixed shaft is divided by the spacer and each line is passed through the gap, the strength of the fixed ring supporting the rotating ring of the winding wheel is maintained, and There is an effect that there is no problem in the ring and there is no possibility of breakage.

Further, even if each line is subjected to a terminal treatment such as a connector having a large cross-sectional shape, since the gaps formed by the spacers have a sufficient interval, the wires can be easily passed therethrough. There is an effect that wiring of each line can be easily performed by connection.

In the prior art, each line was individually laid one by one. However, since the gaps formed by the spacers have a sufficient space, the operation can be performed in one operation. And the time required for the work can be greatly reduced.

Furthermore, in the case of a structure in which a spacer that divides the space between the fixed shaft and the fixed ring into a plurality of parts is interposed, a plurality of gaps are provided by the spacers. For example, there is an effect that an electric line and a mechanical line such as a wire can be separated and wired.

[Brief description of the drawings]

FIG. 1 is a partially omitted front sectional view showing an embodiment of a wiring structure of an electric shutter according to the present invention.

FIG. 2 is an enlarged front sectional view of a main part according to the embodiment.

FIG. 3 is a sectional view taken along the line III-III in FIG. 2;

FIG. 4 is an enlarged side sectional view of a main part in another embodiment.

FIG. 5 is an enlarged side sectional view of a main part in another embodiment.

FIG. 6 is an exploded side sectional view showing a second embodiment of the wiring structure of the electric shutter according to the present invention.

FIG. 7 is a partially cut perspective view according to the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Shutter curtain 3 ... Fixed shaft 4 ... Switchgear 5, 9 ... Winding wheel 10 ... Spacer 11 ... Fixed ring 12 ... Rotating ring 18 ... Gap

Claims (2)

(57) [Claims] In a wiring structure of an electric shutter in which a take-up wheel rotatably driven by a switch mounted on a fixed shaft to wind up a shutter curtain is rotatably mounted on the fixed shaft, at least an outermost portion of the fixed shaft is provided. The winding wheel at the end is composed of a fixed ring fixed to the fixed shaft, and a rotating ring rotatably attached to the outer periphery of the fixed ring, and a plurality of spaces are provided between the fixed ring and the fixed shaft. A wiring structure for an electric shutter, characterized in that a spacer to be divided is interposed, and wiring from the outside is drawn into and connected to the switch through a gap formed by the spacer. 2. A wiring structure of an electric shutter in which a winding wheel driven to rotate by a switch mounted on a fixed shaft and winding a shutter curtain is rotatably mounted on the fixed shaft, at least an outermost portion of the fixed shaft. The winding wheel at the end is constituted by a fixed ring fixed to the fixed shaft, and a rotating ring rotatably attached to the outer periphery of the fixed ring, and a part of the ring is provided between the fixed ring and the fixed shaft. Wiring of an electric shutter, wherein a wiring from the outside is drawn into and connected to the switch through a gap between the fixed ring and the fixed shaft by means of a C-shaped spacer formed by cutting off the spacer. Construction.