JPH11294046A - Opening/closing driving device of shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure by oppositely arranging a gear to a slat in the vicinity of a winding cylinder, and revolvingly driving the gear by meshing with the recess/projection part of the slat. SOLUTION: A gear 5 is oppositely arranged to a slat 30 in the vicinity of the slit-like opening part 11 where a shutter main body 3 arranged on the under surface of a casing 1 goes in and out. Next, the tooth part 51 of the gear 5 is meshed with the recess/projection part of the continuously connected part 31 of the slat 30 to open/close the main body 3 by rotating the gear 5 by a driving means. Next, for example, a presser roller 6 is arranged outside the slat 30 to support back pressure of the slat 30 pressed outside by the gear 5 to prevent idle rotation of the gear 5. A slat auxiliary plate having plural through holes meshing with the tooth part 51 at the almost same interval as a pitch of the slat 30, is arranged on the lower end of the main body 3 so that the main body 3 is completely housed in the casing 1. Therefore, an opening/closing driving device can be installed regardless of a shutter structure and strength, and a remodeling space can be sharply reduced more than usual.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter opening / closing drive device, and more particularly to an electric manual type of existing manual lightweight shutter installed in a garage of a private house, an entrance of a small store, a show window, or the like. The present invention relates to a shutter opening / closing drive device that can be suitably used for the operation.

[0002]

2. Description of the Related Art Conventionally, lightweight shutters are installed in garages of private houses, entrances and exits of small stores, show windows, and the like. In general, many of these lightweight shutters are manually operated. For example, as shown in FIG. 6, a shutter main body 3 formed by connecting a large number of slats 30 is wound up by lifting up a guide column 4. It is taken out from the winding cylinder 2 by winding it on the cylinder 2 and pulling it down,
The shutter body 3 can be opened and closed. Further, in this lightweight shutter, a spring mechanism 21 is disposed on the winding cylinder 2 as necessary, and the spring mechanism 21 balances the weight and the weight of the shutter body 3 formed by connecting the slats 30. The opening and closing operation can be performed lightly with a small force.

[0003]

By the way, in recent years, for example, in a garage of a private house, there has been a demand for an automatic opening and closing operation of a shutter by remote control from inside a vehicle. Also, in light-weight shutters installed at entrances and show windows of small stores, electric shutters are increasingly used from the viewpoint of user convenience and the like.

However, the conventional electric shutter employs a mechanism for opening and closing the shutter by directly rotating the take-up cylinder by driving means including an electric motor, a speed reducer, and a transmission mechanism. As a result, the overall structure becomes complicated, and in particular, in order to convert the existing manual lightweight shutter into an electric type, a driving means including an electric motor and a transmission mechanism is mounted inside the winding cylinder, and the winding is performed. The configuration in which the cylinder is directly driven to rotate has a problem that the installation work is complicated, the construction cost is increased, and the strength is high. In addition, when the driving means of the winding cylinder is installed near the winding cylinder, the driving means must be installed on an extension of the rotation axis of the winding cylinder, so that it is difficult to secure a space for remodeling. There was a problem.

The present invention has been made in view of the problems of the conventional manual light-weight shutter and the electric shutter, and has a simple structure of an opening / closing drive device by directly driving a slat constituting a shutter body. It is a first object of the present invention to provide a shutter opening / closing drive device capable of easily remodeling an existing manual lightweight shutter electrically.

Further, the present invention relates to a shutter opening / closing drive device in which a slat constituting a shutter body is directly driven and operated, wherein the shutter body can be completely stored in a casing. A second object is to provide a driving device.

[0007]

In order to achieve the first object, a shutter opening / closing drive device according to a first aspect of the present invention is provided at a position near a winding cylinder for winding a shutter body formed by connecting slats. A gear that is rotatably driven by a driving means facing the slat, and is driven to rotate in a state in which the gear is meshed with the concave and convex portions of the slat, so that the shutter body is opened and closed. I do.

This shutter opening / closing drive device is provided with a gear that is rotationally driven by a driving means facing a slat constituting a shutter body, and the gear is rotationally driven in a state of being meshed with the concave and convex portions of the slat. As a result, the slats are directly driven to open and close the shutter body, so that the opening and closing drive device can be mounted irrespective of the internal structure of the shutter such as the winding cylinder and their strength, and the drive It is possible to solve the problem that it is difficult to secure a space for remodeling when the means is installed on an extension of the rotation axis of the winding cylinder.

In this case, a holding member for supporting the back pressure with the slat interposed between the gear and the slat can be provided.

This prevents the gear from running idle and the like,
The rotational driving force can be reliably transmitted to the slat, and the shutter body can be opened and closed reliably.

Further, in order to achieve the second object,
A shutter opening / closing drive device according to a second aspect of the present invention is the shutter opening / closing drive device according to the first aspect of the present invention, wherein a slat formed with a through-hole at the lower end of the shutter body at substantially the same interval as the slat pitch is formed. An auxiliary plate is provided.

The shutter opening / closing drive device pushes up the shutter body via a slat auxiliary plate provided at the lower end of the shutter body and having a through hole with which the gear meshes at substantially the same interval as the pitch of the slats. It is possible,
Thus, the shutter body can be completely stored in the casing.

In this case, the base end side of the slat auxiliary plate can be swingably attached to the lower end of the shutter main body, and the front end side can be formed to be curved toward the inside of the shutter main body.

Thus, when the shutter body is closed, the slat auxiliary plate provided at the lower end of the shutter body is smoothly swung along the floor surface to completely close the opening in which the shutter is installed. it can.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a shutter opening / closing drive device according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a first embodiment of a shutter opening / closing drive device according to the present invention. This shutter opening / closing drive device can be attached to various types of shutters regardless of whether it is new or existing. In this embodiment, like the conventional manual lightweight shutter, the slats 30 are connected to each other. The entire opening / closing drive device is provided inside a casing 1 which is provided so as to protrude outward to rotatably support a take-up cylinder 2 provided with a spring mechanism (not shown) in order to balance the weight of the shutter body 3. Is attached.

An electric motor, a speed reducer, a transmission mechanism, and the like, facing a slat 30 constituting the shutter main body 3 at a position near the slit-shaped opening 11 formed on the lower surface of the casing 1 and allowing the shutter main body 3 to enter and exit. The gear 5 is disposed on a rotary drive shaft 7 driven at a required number of rotations by an appropriate drive means (not shown) composed of
Are engaged with the concave and convex portions formed on the connecting portion 31 of the slat 30, and the shutter body 3 is driven to open and close by rotating the gear 5 in this state. In addition, the rotary drive shaft 7 can also be configured to be directly driven to rotate by an electric motor having a deceleration function, whereby the structure of the opening / closing drive device can be simplified.

The gear 5 is formed in such a shape that the tooth portion 51 of the gear 5 meshes with the uneven portion formed on the connecting portion 31 of the slat 30, and the rotational driving force is smoothly transmitted to the slat 30. The pitch P1 of the gear 5 is determined in accordance with the pitch P2 of the slat 30. As a result, the gear 5 and the slat 3 can be driven and operated directly so that the shutter body 3 can be opened and closed by rotating the gear 5 like a pinion and a rack.

In this case, the shutter body 3 is
It is necessary that each slat 30 is formed with an uneven portion with which the tooth portion 51 of the gear 5 can mesh, but other materials and shapes are not particularly limited.
Conventionally, color steel plates, used for lightweight shutters,
A shutter body formed by connecting various slats, such as an aluminum-plated steel plate or a stainless steel plate pressed or an aluminum forged product, can be employed.

Further, a holding roller 6 as a holding member for supporting a back pressure of the slat 30 pushed outward by the gear 5 is provided so as to sandwich the gear 5 and the slat 30 therebetween. The holding roller 6 is rotatably arranged on a base 61 fixed to the casing 1, and is configured to rotate following the movement of the slat 3. The pressing roller 6 is preferably made of a synthetic resin material such as rubber or nylon having abrasion resistance and elasticity. Thereby, the idle rotation of the gear 5 can be prevented, the rotational driving force of the gear 5 can be reliably transmitted to the slat 30, and the opening and closing operation of the shutter main body 3 can be reliably performed.

As the pressing member for supporting the back pressure of the slat 30, in addition to the pressing roller 6 shown in this embodiment,
As shown in FIG. 2, a shoe-shaped holding member 6A can also be used. In this case, the length L of the holding member 6A
Is formed longer than the pitch P2 of the slats 30, so that the position of the pressing member 6A is
The noise and impact generated when the vehicle 1 passes can be reduced.

3 and 4 show a second embodiment of the shutter opening / closing drive device according to the present invention. This shutter opening / closing drive device is configured such that the entire opening / closing drive device is mounted at a lower portion in a casing 1 provided inside to rotatably support the winding drum 2.

In this embodiment, a motor M, a motor M, and a slat 30 constituting the shutter main body 3 are provided at a position near a slit-shaped opening 11 formed on the lower surface of the casing 1 and allowing the shutter main body 3 to enter and exit. Two gears 5 are arranged at both ends of a rotary drive shaft 7 driven at a required number of rotations by a drive mechanism 8 including a transmission mechanism including a speed reducer G, sprockets 81 and 82, a chain 83, and a control unit 84. And
The tooth portion 51 of the gear 5 meshes with the uneven portion formed on the connecting portion 31 of the slat 30, and the shutter body 3 is driven to open and close by rotating the gear 5 in this state. It is.

In the case of a lightweight shutter, the shutter body 3 can be opened and closed sufficiently smoothly with one gear 5 by appropriately setting the arrangement position of the gear 5.
As shown in the present embodiment, by disposing two (or two or more) gears 5 on the rotary drive shaft 7, the present invention can be applied to a large-sized shutter.

The other construction of the shutter opening / closing drive device is the same as that of the first embodiment.

In the shutters of the above embodiments, if necessary, the shutter body 3 is taken up by the take-up cylinder 2 by lifting the shutter body 3 along the guide post 4, and is pulled down from the take-up cylinder 2 by pulling down. The shutter body 3 can be opened and closed manually by unwinding.

As described above, the shutter opening / closing drive device of the present invention has been described based on the embodiment in which the entire opening / closing drive device is mounted inside the casing 1 of the shutter. However, the present invention is not limited to this. When the free space of the casing 1 is small due to an existing shutter or the like, an opening / closing drive device can be provided outside the casing 1 at a position near the casing 1 by providing another casing as necessary.

By the way, as is apparent from the above embodiment, when the gear 5 is driven to rotate, when the shutter main body 3 is opened, the bottom plate 32 disposed at the lower end of the shutter main body 3 becomes When the center line of the gear 5 is exceeded, the engagement between the teeth 51 of the gear 5 and the uneven portions formed on the connecting portion 31 of the slat 30 is interrupted, so that the shutter main body 3 cannot be further wound around the winding drum 2. . For this reason, for example, when this opening / closing drive device is externally mounted near the casing 1, the shutter body 3
Cannot be completely stored in the casing 1, and the portion of the shutter body 3 that cannot be stored in the casing 1 causes the upper portion of the opening where the shutter is installed to be closed, so that the opening area is increased. There was a problem that it could not be taken.

FIG. 5 shows a third embodiment of a shutter opening / closing drive device according to the present invention which addresses this problem.
This shutter opening / closing drive device includes a slat auxiliary plate 9 having a plurality of through holes 91 formed at the lower end of the shutter body 3 at intervals P3 substantially equal to the pitch P2 of the slats 30 so as to mesh with the teeth 51 of the gear 5. To be installed.

In this case, the slat auxiliary plate 9 is
The base end 92 is connected to the lower end of the shutter body 3 by a hinge 94.
Is mounted so as to be swingable through the
3 is formed so as to be curved toward the inside of the shutter main body 3 (inside the room). The bottom plate 32 provided at the lower end of the shutter body 3 is formed with a notch 32a for allowing the slat auxiliary plate 9 to swing and the gear 5 to pass. Also, a through hole 91 formed in the slat auxiliary plate 9 is provided.
P4 between the slat auxiliary plate 9 and the proximal end 92 of the slat auxiliary plate 9 and the connecting portion 31 between the proximal end 92 of the slat auxiliary plate 9 and the slat 30
The distance P5 between the concave and convex portions formed on the gear 5
Are set at substantially the same interval as the pitch P2 of the slats 30 so that can smoothly mesh with each other.

According to this shutter opening / closing drive device,
Through a slat auxiliary plate 9 provided at the lower end of the shutter main body 3 and having a through hole 91 in which the tooth portion 51 of the gear 5 meshes with the pitch P2 of the slat 30 at substantially the same interval P3.
The bottom plate 32 provided at the lower end of the shutter body 3
The shutter main body 3 can be pushed up even after the center line is crossed over, so that the shutter main body 3 can be completely stored in the casing 1 and the opening area of the opening where the shutter is installed can be enlarged. It will be.

A base end 92 of the slat auxiliary plate 9 is swingably attached to a lower end of the shutter body 3 via a hinge 94, and a distal end side 93 of the slat auxiliary plate 9 is curved toward the inside of the shutter body 3. By forming, FIG.
As shown in (C), when the shutter body 3 is closed,
Slat auxiliary plate 9 disposed at the lower end of shutter body 3
Is naturally swung smoothly along the floor surface FL, and the shutter body 3 is lowered until the bottom plate 32 disposed at the lower end of the shutter body 3 comes into contact with the floor surface FL. Can be closed.

The shutter opening / closing drive device of the present invention can be widely applied to various types of shutters regardless of whether they are new or existing. Opening and closing drive device can be mounted irrespective of the strength of the opening and closing device, and the structure of the opening and closing drive device can be simplified. The shutter of the type can be easily remodeled electrically.

[0034]

According to the shutter opening / closing drive device of the first aspect of the present invention, a gear that is rotationally driven by a drive means is provided so as to face the slat constituting the shutter body, and the gear is provided on the uneven portion of the slat. The shutter is opened and closed by directly driving the slats by rotating and driving in the engaged state, so the opening and closing drive device is installed regardless of the internal structure of the shutter such as the winding cylinder and their strength And it is possible to solve the problem that it is difficult to secure a space for remodeling when the driving means is installed on an extension of the rotation axis of the winding cylinder, and to simplify the structure of the opening / closing driving device. In particular, the existing manual lightweight shutter can be easily and electrically remodeled.

Further, by providing a holding member for supporting the back pressure with the gear and the slat interposed therebetween, it is possible to prevent the gear from idling and to surely transmit the rotational driving force to the slat, thereby enabling the shutter to be rotated. Opening and closing operations can be performed reliably.

Further, according to the shutter opening / closing drive device of the second invention, the slat auxiliary plate provided at the lower end of the shutter main body and having a through hole with which the gear meshes at substantially the same interval as the slat pitch. , The shutter body can be pushed up, whereby the shutter body can be completely stored in the casing, and the opening area of the opening in which the shutter is installed can be increased.

Further, the base end side of the slat auxiliary plate is swingably attached to the lower end of the shutter main body, and the front end side is curved toward the inside of the shutter main body, thereby closing the shutter main body. At this time, the slat auxiliary plate provided at the lower end of the shutter body can be smoothly swung along the floor surface to completely close the opening in which the shutter is installed.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a shutter opening / closing drive device according to the present invention.

FIG. 2 is a side view showing a modification of the pressing member.

FIG. 3 is a side view showing a second embodiment of the shutter opening / closing drive device of the present invention.

FIG. 4 is a plan view of the same.

5A and 5B show a main part of a third embodiment of a shutter opening / closing drive device of the present invention, wherein FIG. 5A is a rear view, FIG. 5B is a side sectional view, and FIG. It is a side sectional view.

FIG. 6 is an explanatory view of a conventional manual lightweight shutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 11 Opening part 2 Take-up cylinder 3 Shutter main body 30 Slat 31 Connecting part (irregular part) 4 Guide support | pillar 5 Gear 51 Teeth part 6 Pressing member (pressing roller) 6A Pressing member 7 Rotation drive shaft 8 Drive means 9 Slat auxiliary plate 91 Through hole

Claims (4)

[Claims] A gear, which is rotatably driven by a driving means in opposition to a slat, is provided at a position near a take-up cylinder for winding a shutter body formed by connecting slats, and the gear is formed as a concave / convex portion of the slat. A shutter opening / closing drive device characterized in that the shutter body is opened / closed by being rotationally driven while meshing with the shutter. 2. The shutter opening / closing drive device according to claim 1, further comprising a holding member that supports a back pressure with the slat interposed between the gear and the slat. 3. A slat auxiliary plate having a through hole with which the gear meshes at substantially the same interval as a slat pitch is provided at a lower end of the shutter main body. Opening / closing drive for shutter. 4. A slat auxiliary plate, wherein a base end side of the slat auxiliary plate is swingably attached to a lower end of the shutter main body, and a front end side thereof is formed to be curved toward the inside of the shutter main body. 3. The shutter opening / closing drive device according to 3.