JP2589524Y2 - Electric shutter take-up device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to an electric shutter winding device for opening and closing a slat curtain using an electric motor, and more particularly, to an improvement in a mounting position of the electric motor in a winding region of the slat curtain. The present invention relates to a motor-driven shutter winding device described above.

[0002]

2. Description of the Related Art In this type of electric shutter winding device, as shown in FIGS.
An electric motor 103 for driving and winding the slat curtain 102 therein is disposed in the shutter case 104 in parallel with the winding cage 101, and a suitable two-axis transmission system (for example, a chain transmission system) 105. , The take-up cage 101 is driven to rotate (see FIG. 6), or the take-up cage 1 is provided inside the take-up cage 101.
01 is disposed together with a suitable transmission system 105 ′ on the support shaft 106, and drives the winding cage 101 to rotate (see FIG. 7).

[0003]

However, the former arrangement of the electric motor 103 is different from that of the shutter case 104.
The width of the shutter device is large, and the shutter device is not easily accommodated in the building. In addition, the latter arrangement is such that a torsion spring 107 for rewinding and the like are housed around the support shaft 106 in the winding cage 101, Special miniaturization,
In addition, it has to be configured in a special shape, and furthermore, it is difficult to perform maintenance when the shutter device fails.

[0004] In view of the above, the present applicant has first mounted the above-mentioned winding cage on one side of the outer periphery of the support shaft in the winding region of the slat curtain, and then provided the other side of the outer periphery of the support shaft outside the winding cage. Then, a winder for an electric shutter equipped with an electric motor and a transmission system for transmitting the rotation of the electric motor to the winding cage was proposed. Since the electric motor and the transmission system are arranged coaxially with the support shaft, the shutter case does not expand in the width direction thereof. , The electric motor and its transmission system need not be miniaturized, and there is no need to have a special structure and shape, so that costs can be reduced and maintenance can be performed easily.

[0005]

The object of the present invention is to provide a shutter winding device having an improved structure as described above, which has a simple structure with no unreasonable strength and has a simple structure from the transmission system to the winding cage. An object of the present invention is to provide an electric shutter winding device that is devised so as to transmit a rotational driving force.

[0006]

For this reason, in the winding device of the present invention, as is apparent from the illustrated embodiment, the slat curtain 1 is moved by the driving force of the electric motor 7 to release the shutter case. In a winding device of a shutter adapted to be wound around a winding cage 5 in a position 3, the winding cage 5 is mounted on one side of an outer periphery of a support shaft 6 in a winding region of the slat curtain 1. An electric motor 7 is provided on the other side of the outer periphery of the support shaft 6 outside the winding cage 5.
And a transmission system 8 for transmitting the rotation of the winding cage 5 to the winding cage 5.
An engaging element 5C is projected from a winding wheel 5A constituting an end supporting member of the transmission system 8, and a transmission wheel 1 of the transmission system 8 is provided.
2, the engaging element 5 with respect to the radial direction of the transmission wheel 12;
In the engagement slot 12A formed to allow the movement of C,
The engagement element 5C is configured to be engaged in the rotation direction of the winding cage 5.

In this case, the base end of the engaging element 5C is preferably extended and fixed in a stay 5B provided between winding wheels 5A to constitute the winding cage 5. Further, the engagement slot 12A is provided with the transmission wheel 1.
It is preferable that the engaging member 5C be formed in a U-shape allowing the movement of the engaging element 5C in the radial direction.

[0008]

Therefore, since the electric motor 7 and the transmission system 8 are arranged coaxially with the support shaft 6, the shutter case 3
Is not enlarged in the width direction, so that the shutter device can be easily accommodated in mounting the shutter device, and since the shutter device is located outside the winding cage, the electric motor 7 and its transmission system 8
It is not necessary to reduce the size and the special structure and shape, so that costs can be reduced and maintenance can be performed easily. In addition, the structure is such that the engagement element 5C protruding toward the transmission system 8 is engaged with the engagement groove 12A formed in the transmission wheel 12 to transmit the rotational driving force. When attaching the electric motor 7 and the transmission system 8 to the support shaft 6 while considering the relative position, the attaching operation can be easily performed.

Further, by extending the engaging element 5C into the stay 5B and fixing the same to the stay 5B, it is possible to secure sufficient mounting strength of the engaging element 5C to the winding cage 5 when transmitting the rotational driving force. it can. In addition, the engagement slot 12
A is formed in a shape that allows the engagement element 5C to move in the radial direction of the transmission wheel 12,
Even if the support shaft 6 is bent by the load of the shutter slats wound on the winding cage 5,
There is no excessive load applied between the transmission system 8 and the winding cage 5, and the rotation driving force can be smoothly transmitted.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on a first embodiment shown in FIGS. In the figure, reference numeral 1 denotes a shutter slat curtain, which is configured to move up and down along a guide rail 2, and in a shutter case 3 provided on the upper end side of the guide rail, an elastic force of a torsion spring 4 is provided. Then, it is wound around the winding cage 5. The winding cage 5 includes a pair of left and right winding wheels 5A and a plurality of tubular stays 5B provided therebetween. The boss portion of the winding wheel 5A is rotatably fitted to the support shaft 6. The slat curtain 1 is wound around an outer peripheral portion thereof via a hanging base (not shown) and held.

Particularly, in the present invention, the slat curtain 1
The winding cage 5 is arranged on one side of the outer periphery of the support shaft 6 in the winding area of
Is mounted, and the support shaft 6 outside the winding cage 5 is attached.
On the other side of the outer periphery, an electric motor 7 and a transmission system 8 for transmitting the rotation of the electric motor 7 to the winding cage 5 are provided. Note that the transmission system 8 employed in this embodiment is:
Although the internal structure is not shown, a drive pinion 13 is meshed with the internal gear in a cylindrical case-shaped rotating member 8A equipped with an internal gear, and the drive pinion 13 is The clutch 9 is connected to the output shaft of the electric motor 7, and the rotating member 8 </ b> A is linked to the winding cage 5. In the drawing, reference numeral 10 denotes a wiring code of the electric motor 7, and reference numeral 11 denotes
Is a bracket for supporting the support shaft 6 inside the shutter case 3.

The winding cage 5 has a plurality of pin-shaped engaging elements 5C protruding from the winding wheel 5A on the side facing the transmission system 8 so as to project toward the transmission system 8.
In this embodiment, in particular, the base end side of the engagement element 5C is
B, and is fixed thereto by means such as caulking (indicated by reference numeral 5D). Further, a disc-shaped transmission wheel 12 is connected and fixed to the rotating member 8A by fixing means 14 such as bolts so as to face one end of the winding cage 5, and around the outer periphery of the transmission wheel 12, Engagement element 5C
Are formed in the outer peripheral surface of the transmission wheel 12 so as to open. In this embodiment, the engagement slot 12A is formed in a shape or size that allows the engagement element 5C to move in the radial direction of the transmission wheel 12, for example, the U is opened to the outer periphery of the transmission wheel 12. It is formed in the shape of a letter-shaped slot.

In such a configuration, since the electric motor 7 and its transmission system are coaxially mounted on the support shaft 6 outside the winding cage 5, the shutter case 3 is enlarged in the width direction. There is no danger, and the shutter device can be easily installed. Further, although the electric motor 7 and its transmission system 8 are located in the slat curtain winding area, they are located outside the winding cage 5, so that they do not need to be miniaturized and have special structures and shapes. It is not necessary to carry out, and the cost can be reduced and the maintenance can be easily performed. In addition, the structure is such that the engagement element 5C protruding toward the transmission system 8 is engaged with the engagement groove 12A formed in the transmission wheel 12 to transmit the rotational driving force. When attaching the electric motor 7 and the transmission system 8 to the support shaft 6 while considering the relative position, the attaching operation can be easily performed. In particular, in this embodiment, the engaging element 5C extends into the stay 5B and is fixed thereto.
When transmitting the rotational driving force, it is possible to secure sufficient attachment strength of the engaging element 5C to the winding cage 5.
Further, since the engagement slot 12A is formed in a size that allows the movement of the engagement element 5C in the radial direction of the transmission wheel 12, the engagement slot 12A is wound around the winding cage 5, for example. Even if the engaging shaft 5C is displaced in the radial direction of the transmission wheel 12, the engaging member 5C can move within the engaging slot 12A due to the bending of the support shaft 6 due to the load of the shutter slats. The rotation driving force can be smoothly transmitted between the winding cage 5 and the winding cage 5 without excessive load.

FIG. 5 shows a second embodiment of the present invention, in which protrusions 12B, 12B are provided at positions opposite to the openings of the U-shaped engagement slots 12A, and the inside of the engagement slots 12A is formed. , The width b of the engaging element 5C, and the width c between the protrusions 12B, 12B.
b>a> c. With such a configuration, even when the support shaft 6 is bent and the engaging element 5C is largely displaced in the radial direction of the transmission wheel 12, the engaging element 5C may come out of the engaging slot 12A. Absent. Note that the engagement element 5C can be formed at the extended distal end of the stay 5B. Further, the engagement element 5C and the engagement slot 12A can be formed at a plurality of positions in the outer peripheral direction of the transmission wheel 12.

[0015]

[Effects of the Invention] The present invention has been described in detail above. In a shutter winding device in which a slat curtain is wound around a winding cage in a shutter case using a driving force of an electric motor, With the above-mentioned winding cage attached to one side of the outer periphery of the support shaft in the winding region of the slat curtain, the electric motor and its rotation are transmitted to the other side of the outer periphery of the support shaft outside the winding cage. Shutter case 3
However, there is no possibility that the shutter will be expanded in the width direction, so that the shutter device can be easily fitted. Further, it is not necessary to reduce the size of the electric motor 7 and its transmission system as in the related art. There is no need to make the structure and shape, so that practical effects such as cost reduction and easy maintenance can be obtained. Further, an engaging element is projected from a winding wheel that constitutes an end support member of the winding cage in opposition to the transmission system, and an engagement groove formed on an outer periphery of the transmission wheel of the transmission system includes: Since the engaging element is engaged with respect to the rotation direction of the winding cage, when the electric motor 7 and the transmission system 8 are mounted on the support shaft 6 while taking the relative position with respect to the winding cage 5 into consideration. Mounting work can be performed easily. Further, even when the support shaft 6 is deflected by the gravity of the electric motor 7 and the transmission system 8, the torque is transmitted while the engagement element 5C moves in the engagement slot 12A in the radial direction of the transmission wheel 12. Because it can be done, the transmission is smooth.

[Brief description of the drawings]

FIG. 1 is an overall schematic front view showing a first embodiment of the present invention.

FIG. 2 is a front view of a main part of the embodiment.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is an enlarged front view of a main part of the embodiment.

FIG. 5 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 6 is a front view of a main part of a conventional example.

FIG. 7 is a front view of a main part of another conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shutter slat 2 guide rail 3 shutter case 4 torsion spring 5 winding cage 5A winding wheel 5B stay 5C engaging element 5D caulking 6 support shaft 7 electric motor 8 transmission system 9 dock clutch 12 transmission wheel 12A engagement groove hole

Claims (4)

(57) [Scope of request for utility model registration] 1. A winding device for an electric shutter in which a slat curtain is wound around a winding cage in a shutter case by using a driving force of an electric motor, a supporting shaft in a winding region of the slat curtain. Around
When wearing preparative winding cage on one side, the other side of the outer periphery of the support shaft in the take-up cage outside, will be equipped with transmission system for transmitting the rotation of the electric motor and the electric motor to the winding cage An engaging element is protruded from a winding wheel that constitutes an end support member of a winding cage in opposition to the transmission system, and an engaging element is provided on the transmission wheel of the transmission system in a radial direction of the transmission wheel. A wind-up device for an electric shutter, wherein the engaging element is engaged with and inserted into an engaging groove formed so as to allow movement of the wind-up cage in a rotation direction of the wind-up cage. 2. The device according to claim 1, wherein a base end of the engaging member extends and is fixed in a stay provided between winding wheels to form a winding cage. Winding device for electric shutter. 3. The electric shutter according to claim 1, wherein the engaging element is formed by an extended distal end of a stay provided between winding wheels to form a winding cage. Winding device. 4. The electric shutter winding device according to claim 1, wherein the engagement groove is formed by a U-shaped hole opened on an outer peripheral surface of the transmission wheel.