JP2589525Y2 - 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 attached the other side of the support shaft outside the winding cage. Has proposed an electric shutter winding device equipped with an electric motor and a transmission system for transmitting the rotation of the electric motor to the winding cage. 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.
In addition, since the electric motor and its transmission system are located outside the winding cage, there is no need to reduce the size of the electric motor and its special structure and shape, thereby reducing costs and facilitating maintenance.

[0005]

The object of the present invention is to provide a shutter rewinding device having an improved structure as described above, which has a simple structure without any unreasonable strength and a rotational drive from the transmission system to the rewinding cage. An object of the present invention is to provide an electric shutter winding device that is devised so that force can be transmitted.

[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 slat 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 in a winding state. On the other side of the outer periphery of the support shaft 6 outside the take-up cage 5, an electric motor 7 and a transmission system 8 for transmitting the rotation of the electric motor 7 to the take-up cage 5 are provided. A pin-shaped engaging element 5C is protruded from a winding wheel 5A constituting an end support member, and a disk 12B is disposed on the transmission wheel 12 of the transmission system 8 near the winding wheel.
And an engagement slot 12A formed in the disc 12B.
, The engagement element 5C is inserted into the engagement cage 5 in the rotation direction of the winding cage 5.

[0007]

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 pin-shaped engaging element 5C protruding toward the transmission system 8 is engaged with the engaging groove 12A formed in the disk 12B to transmit the rotational driving force. With respect to the support shaft 6,
When the electric motor 7 and the transmission system 8 are mounted, the mounting operation can be easily performed, and the pin-shaped engaging element 5C is engaged with the disk 12B at a position close to the winding wheel supporting the pin-shaped engaging element 5C. When transmitting the rotational driving force, no excessive bending moment is applied to the engagement element 5C.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on the illustrated embodiment. 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.

In particular, 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.
The other side is provided with an electric motor 7 and a transmission system 8 for transmitting the rotation of the electric motor 7 to the winding cage 5. Although the internal structure of the transmission system 8 employed in this embodiment is not shown, the transmission system 8 is driven by the internal gear in a cylindrical case-shaped rotating member 8A provided with the internal gear. The drive pinion 13 is connected to an output shaft of the electric motor 7 via a dock clutch 9, and the rotating member 8 </ b> A is connected to the winding cage 5 in an interlocking manner with the pinion 13. In the figure, reference numeral 10
Reference numeral 11 denotes a wiring cord of the electric motor 7, and reference numeral 11 denotes a bracket for supporting the support shaft 6 inside the shutter case 3.

The take-up cage 5 has a pin-shaped engaging element 5C protruding from the take-up wheel 5A on the side facing the transmission system 8 so as to project toward the transmission system 8. In this embodiment, in particular, in order to firmly fix the base end side of the engagement element 5C to the winding wheel 5A by means such as caulking (indicated by reference numeral 5D), a reinforcing plate 5 is attached to the winding wheel.
E is superimposed. A disk-shaped transmission wheel 12 is connected and fixed to the rotating member 8A by a fixing means 14 such as a bolt so as to face one end of the winding cage 5. The transmission wheel 12 has a cylindrical shape. Extension 12C
Through the disk 12 adjacent to the winding wheel
B is provided, and an engagement groove 12A corresponding to the engagement element 5C is formed in the vicinity of the outer periphery of the disc 12B, and the engagement cage 5C is inserted into the engagement groove hole 12A. The engagement between the winding wheel 5A and the transmission wheel 12 has been achieved with respect to the rotation direction of. In this embodiment, the engagement slot 12A has a size that allows the engagement element 5C to move in the radial direction of the transmission wheel 12, for example, an oval slot.

In such a configuration, since the electric motor 7 and its transmission system are coaxially mounted on the portion of 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 pin-shaped engaging element 5C is moved closer to the winding wheel that supports the pin-shaped engaging element 5C.
2B, no excessive bending moment is applied to the engaging element 5C when transmitting the rotational driving force. In addition, 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, the mounting operation can be easily performed. In particular, in this embodiment, since the engagement slot 12A is formed in a size that allows the engagement element 5C to move in the radial direction of the transmission wheel 12, for example, On the other hand, the support shaft 6 is bent by the load of the shutter slats taken up, and even if the engaging member 5C is displaced in the radial direction of the transmission wheel 12, the engaging member 5C moves in the engaging slot 12A. As a result, no excessive load is applied between the transmission system 8 and the winding cage 5, and the rotational driving force can be smoothly transmitted.

As shown in FIG. 5, when the engaging element 5C is mounted on the winding wheel 5A, the reinforcing plate 5E for caulking the base end of the engaging element 5C is made to face the transmission system 8 side. Then, it may be mounted on the winding wheel 5A. In this case, the engagement element 5C is located at a position near the base end thereof,
Since it engages with the disk 12B, the influence of the bending moment applied thereto is smaller, and sufficient strength can be secured.
Note that the engagement element 5C can be formed at the extended distal end of the stay 5B. Further, the engaging element 5C and the engaging slot 12
A can be formed at a plurality of positions in the outer peripheral direction of the disk 12B. The engagement slot 12A can also be formed by a recess opening in the outer peripheral direction of the disk 12B.

[Effects of the Invention] The present invention has been described in detail above, and 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, a pin-shaped engaging element is protruded from a take-up wheel constituting an end support member of the take-up cage in opposition to the transmission system, and a disc adjacent to the take-up wheel is provided on the transmission wheel of the drive system. And the engaging element is inserted into the engaging groove formed in the disk and engaged in the rotating direction of the winding cage. Therefore, when transmitting the rotational driving force, an excessive bending moment is applied to the engaging element 5C. Not loaded.

[Brief description of the drawings]

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

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

FIG. 3 is an end 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 an enlarged front view of a main part of another 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 5E reinforcing plate 6 support shaft 7 electric motor 8 transmission system 9 dock clutch 12 transmission wheel 12A engagement groove hole 12B disk 12C extension

Claims (3)

(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. One of the outer circumference
When wearing collected the winding cage side, the other side of the support shaft periphery at the winding cage outside, will be equipped with transmission system for transmitting the rotation of the electric motor and the electric motor to the winding cage, A pin-shaped engaging element is projected from a winding wheel that constitutes an end support member of the winding cage, and a disk adjacent to the winding wheel is provided on the transmission wheel of the transmission system. A winding device for an electric shutter, wherein the engaging element is inserted into an engaging groove formed in the disk and engaged in a rotating direction of the winding cage. 2. The electric shutter according to claim 1, wherein said engaging element is formed by an extended end of a stay provided between winding wheels to form a winding cage. Winding device. 3. The electric shutter winding device according to claim 1, wherein the engagement slot is formed by a slot or a U-shaped recess elongated in a radial direction of the disc. .