JPH0323034Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an electric shutter that can be attached to an opening in a box housing a cashing dispenser, a vending machine, etc., or an opening in a building. It is.

[Problems to be solved by the prior art and the invention]

In general, in this type of electric shutter, a shutter curtain formed by connecting a plurality of slats in a series in the vertical direction has a closing guide section along both left and right sides of the opening, and a shutter curtain that is tilted rearward with respect to the closing guide section. Some devices are configured to be guided for opening and closing using a guide rail that includes a storage guide section and a bending guide section that connects both guide sections. However, with conventional shutter curtains, the wire connected to the lower end of the shutter curtain was wound and unwound using the driving force of an electric motor to open and close, so if the wire was cut, the shutter would not open or close. There was a fear that the curtains would fall.

[Means to solve the problem]

In view of the above-mentioned circumstances, the present invention was devised for the purpose of providing an electric shutter that can eliminate these drawbacks, and is formed by connecting a plurality of slats in a series in the vertical direction. The shutter curtain is mounted on a guide rail consisting of a closing guide section along both the left and right sides of the opening, a storage guide section that is tilted backwards from the closing guide section, and a bending guide section that connects both guide sections. In an electric shutter configured to guide the opening and closing of the shutter curtain, the operating chain facing the opening/closing direction of the shutter curtain is folded inwards at the bending guide part and is attached to the back side of the shutter curtain which is on the lower side at the storage guide part. The drive sprocket, which is integrally provided with the shutter curtain, is interlocked with the actuating chain from the rear side of the shutter curtain at the bending guide portion position.

With this configuration, the present invention enables the safety of the electric shutter to be significantly improved.

〔Example〕

Next, one embodiment of the present invention will be described based on the drawings. In the drawings, reference numeral 1 denotes an electric shutter, and in this embodiment, a shutter curtain 2 for use as a dispensing dispenser is illustrated. They are connected and formed into a single piece. In this embodiment, brackets 4 are fixed to both the left and right ends of every other slat 3 among these slats 3.
A pair of upper and lower running rollers 5, 5 rotating at the fulcrum a
and a running roller 6 which rotates about a fulcrum of a front-rear shaft 6a located between the running rollers 5, 5 are provided so as to slightly protrude from the left and right outer edges of the shutter curtain 2, respectively. Furthermore, bracket 4
An actuating chain 7 is integrally fixed to the shutter curtain 2 so as to face in the vertical direction via a joint link 7a, located inside the left and right edges of the shutter curtain 2, that is, on the back surface.

On the other hand, reference numeral 8 denotes a guide rail along which the running rollers 5 and 6 of the shutter curtain 2 are guided, and the guide rail 8 is located on the back side of the box 9 housing a not-shown cathing dispenser. The storage rail 8a is laid along the front opening A which is slanted upward, and is further extended from the upper end of the guide rail 8 to the storage rail 8a which is bulged upward at a slight slope on the back side. As will be described later, when the front opening A is opened, the shutter curtain 2 will move along this storage rail 8a.
It is now stored in the Reference numeral 10 denotes a drive shaft rotatably supported on both left and right walls of the box body 9 via bearings 11 so as to be located near the lower end of the extended base end of the guide rail 8.
A drive sprocket 12 is integrally attached to the drive sprocket 12 with which the actuation chain 7 provided on the shutter curtain 2 engages from above, and an electric sprocket with a brake disposed on the back side of the drive shaft 10 is attached to the drive sprocket 12. A driven sprocket 14, which is interlocked and connected to the motor 13 via a transmission chain 15, is also integrally mounted. By driving the electric motor 13 to rotate the drive shaft 10 in the forward and reverse directions, the shutter curtain 2 can be rolled up and stored in the storage rail 8a with the opening A opened, and unrolled and opened with the opening A opened. It is adapted to move up and down into a closed position.

In the embodiment of the present invention constructed as described above, the shutter curtain 2 has an actuation chain 7 integrally provided along the back side.
The opening/closing operation is performed by forward and reverse rotation of the drive sprocket 12, which is always engaged with the drive sprocket.
Therefore, unlike conventional systems in which the shutter curtain 2 is suspended by wire, there is no problem such as the shutter curtain 2 falling due to cutting of the wire, and as a result, the electric shutter is extremely safe. can be provided.

Moreover, since the operating chain 7 is integrally provided on the back surface of the shutter curtain 2 so as to engage with the driving sprocket 12 from above at the bent portion of the guide rail 8, a long engagement length of the operating chain 7 is ensured. The sprocket 12 can actively drive the working chain 7 by gravity.
can be made to bite. Therefore, not only can opening and closing operations be performed reliably, but also problems such as the shutter curtain 2 falling due to disengagement of the operating chain 7 can be reliably prevented.

Furthermore, the operating chain 7 is connected to the shutter curtain 2.
Since the guide rail 8 is located on the inner back side of the shutter curtain 2, it is sufficient that the guide rail 8 is narrow enough to cover both side edges of the shutter curtain 2 while encompassing at least the running rollers 5 and 6. There is no need to use something wide enough to cover up to 7. Therefore, the guide rail 8 can be configured with a narrow one, and when the box body is formed with the same left and right width, it is possible to have a wider opening width, and when the frontage width is the same, it is possible to have a wider opening width. In this case, the width of the box can be narrowed, which can greatly contribute to making the box lighter and more compact.

Furthermore, in this embodiment, since the running rollers 5 and 6 are supported by the brackets 4 provided on every other slat 3, the number of brackets 4 can be reduced by half, and the running rollers 5 and 6 are Since it is located in the interlock area, it is convenient because it can also protect the slats.

[Function and effect]

In summary, since the present invention is constructed as described above, the shutter curtain is provided with a closing guide section along both the left and right sides of the opening, a storage guide section that is tilted rearward with respect to the closing guide section, and both guides. Although the shutter curtain is configured to be guided for opening and closing by a guide rail consisting of a bending guide section that connects the sections, an operating chain that is integrally provided on the back of the shutter curtain is bent inward at the bending guide section. is configured to open and close the shutter curtain by transferring the drive sprocket to the operating chain from the rear side of the shutter curtain at the position of the bending guide portion by forward and reverse rotation of the drive sprocket. Unlike conventional systems in which the curtain is suspended by wires, there is no problem such as the shutter curtain falling due to cutting of the wire, and as a result, an electric shutter with extremely high safety can be provided. Moreover, since the engagement position between the operating chain and the drive sprocket is inside the bending guide part, a long engagement length can be ensured, and the operating chain can be actively engaged with the drive sprocket by gravity, allowing the drive sprocket to engage with the drive sprocket. Therefore, not only can reliable opening/closing operation be performed, but also the problem of the shutter curtain falling due to disengagement of the operating chain can be reliably prevented, which improves the opening/closing performance of the electric shutter and improves safety. It can greatly contribute to improving sexual performance.

[Brief explanation of the drawing]

The drawings show one embodiment of the electric shutter according to the present invention, in which Fig. 1 is a schematic front view of the electric shutter, Fig. 2 is a plan view of the same, Fig. 3 is a side view of the same, and Fig. 4 is a schematic front view of the electric shutter. 5 is a front view of the shutter curtain, FIG. 5 is a side view of the same, FIG. 6 is an enlarged front view of the main part of the shutter curtain, and FIG. 7 is a horizontal sectional view of the guide rail. In the figure, 1 is an electric shutter, 2 is a shutter curtain, 3 is a slat, 4 is a bracket, 5, 6
is a traveling roller, 7 is an operating chain, 8 is a guide rail, 9 is a box body, 10 is a drive shaft, 11 is a bearing, 12
13 is a driving sprocket, 13 is an electric motor, 14 is a driven sprocket, and 15 is a transmission chain.

Claims (1)

[Scope of utility model registration request] A shutter curtain formed by connecting a plurality of slats in a series in the vertical direction has a closing guide section along both left and right sides of the opening, a storage guide section tilted backward from the closing guide section, and both guide sections. In an electric shutter configured to be guided for opening and closing by a guide rail comprising a bending guide section connecting the shutter curtain, the operating chain facing the opening/closing direction of the shutter curtain is bent inward at the bending guide section. , is provided integrally on the back of the shutter curtain that is on the lower side in the storage guide section,
An electric shutter characterized in that a drive sprocket interlocked with an electric motor is engaged with an actuating chain from the rear side of the shutter curtain at a bending section position.