JPH0218233Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an opening/closing device for a daylight skylight which can be opened and closed by electric operation.

While skylights let in sunlight, they also need to ventilate during normal use or exhaust smoke during emergencies, so skylights that can be opened and closed are increasingly being installed. Most opening/closing mechanisms are operated manually, so
When a large number of skylights for daylighting are installed in a factory or the like, it takes a lot of time and effort to close them.
Recently, there has been a trend to increase the weight of skylights, such as increasing the size of skylights and using wired glass in order to improve lighting efficiency, and the load required to open and close them has increased. His appearance was strongly desired.

From this point of view, Japanese Patent Application Laid-Open No. 1983-1980 was developed as a device for opening and closing skylights for daylighting using a motor drive.
The one described in Publication No. 150260 is known.
When this device opens and then closes a skylight that has been given an elastic force in the opening direction, a motor winds the wire.However, in case of a power outage, one end of the wire is connected to the motor. Also disclosed is a device for connecting the other end to a manual winder. According to such a device, even heavy skylights can be easily opened and closed by motor drive, but if the device is designed to be usable even during power outages, the mechanism will be complicated, and manual and electric operation will be required. There was some concern that handling would be complicated because the methods used were different.

The present invention was developed in view of this situation, and its gist is that a skylight is pivotally attached to an opening frame and that the skylight is attached in such a way that an elastic force in the opening direction is imparted to the skylight. In a lighting skylight opening/closing device that is designed to open and close by winding and unwinding a wire, the driving part of this opening/closing device consists of a motor, a pair of spur gears, a ratchet, and a wire winding device. A lighting system consisting of a pulley and a manual handle, one of which is driven by a motor, and the other spur gear, ratchet, wire winding pulley, and manual handle are coaxially arranged. It is located in the opening/closing device of the skylight.

The present invention will be explained in more detail below with reference to drawings of embodiments.

Fig. 1 is a perspective view of a daylighting skylight opening/closing device in a closed state showing an embodiment of the present invention, and in the figure 1 is a steel opening frame attached to an opening A of a building; and are connected to each other by an anchor fitting (not shown). 2 is a skylight made of methacrylic resin,
The skylight main body 21 is made of polycarbonate resin or FRP, and a surrounding frame 22 surrounds the skylight main body 21 on all four sides. Reference numeral 3 denotes a hinge that connects the opening frame 1 and the surrounding frame 22. Also, the second
In the figure, 4 is an arm consisting of a main arm 41 and a sub arm 42, 5 is a two-piece torsion bar spring that provides elastic force in the opening direction to this arm 4, and 51 is a cover. Furthermore, 6 in the figure is a wire, and a pulley 24 is fixed to the open side of the skylight 2.
One end is fixed inside the opening frame 1 through the opening.
The other end of this wire 6 is connected so that it can be wound and unwound by a motor, so that the skylight 2 can be opened and closed.

In this opening/closing device, the driving section 7 connected to the other end of the wire 6 has a mechanism as shown in FIG. 3. That is, FIG. 3 shows a schematic mechanical diagram of the drive unit 7, in which 71 is a motor, 72 is a pair of spur gears, 73 is a ratchet, and 7
4 is a wire winding pulley, 75 is a manual handle, 76 is a shaft that supports these, 77
is the bearing. The drive unit 7 is housed in a casing 78 as shown in FIG. 2, and the operation panel 8
It has come to be controlled by Further, in the figure, numeral 9 represents a pair of shock absorbers, and numeral 61 represents an embedded conduit.

The mechanism for opening and closing the skylight 2 by the drive unit 7 will be explained. First, the skylight 2 which is in the closed state shown in FIG. 1 is opened by opening the pawl of the ratchet 73. This ratchet 73
The claw is normally locked, but it is opened by pressing the "open" button on the operation panel 8, and the elastic force of the torsion bar spring 5 causes the
The skylight main body 21 is opened. At this time, the wire winding pulley 74 is coaxially supported by the other spur gear 72b of the pair of spur gears 72, but it rotates smoothly even when meshing with one of the spur gears 72a. . The opening angle of the skylight main body 21 is adjusted by adjusting the shock absorbers 9 installed on both sides. Note that the claw of the ratchet 73 may be opened manually.

Contrary to the above, there are two methods for changing from the open state of FIG. 2 to the closed state of FIG. 1. First, when performing electric operation using the motor 71, when the "close" button on the operation panel 8 is pressed, the motor 71 rotates and rotates the wire winding pulley 74 via a pair of spur gears 72. Turn 6.
When the skylight main body 21 reaches a predetermined position in the opening frame 1, the limit switch L operates to stop the motor 71. On the other hand, when manual operation is to be performed due to a power outage, etc., the wire 6 may be wound up using the manual wheel handle 75 against the elastic force of the torsion bar spring 5.

Although the present invention has been described above based on the illustrated embodiment, the present invention is not limited to such an example. For example, in order to impart elastic force to the skylight 2, the torsion bar spring 5 may be replaced A general coil spring can be used for this, and it is also possible to combine the pair of spur gears 72 with another spur gear for deceleration.

Since the present invention has the structure described in detail above, it has the advantage that the daylighting skylight can be easily opened and closed by electric or manual operation, and the structure is simple and can be easily constructed.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view showing the opening/closing device of the invention in a closed state, Fig. 2 is a perspective view showing the open state of the invention, and Fig. 3 is a perspective view of the opening/closing device of the invention. FIG. DESCRIPTION OF SYMBOLS 1... Opening frame, 2... Skylight, 21... Skylight main body, 22... Surrounding frame, 3... Hinge, 4... Arm, 41... Main arm, 42... Sub-arm, 5...
...Torsion bar spring, 6...Wire,
7... Drive unit, 71... Motor, 72... A pair of spur gears, 73... Ratchet, 74... Wire winding pulley, 75... Manual handle,
8...Operation panel.

Claims (1)

[Scope of utility model registration request] A skylight for daylighting in which a skylight is pivotally attached to an opening frame and is attached so as to give elastic force in the opening direction to the skylight, and which can be opened and closed by winding and unwinding a wire. In this opening/closing device, the driving part of this opening/closing device is composed of a motor, a pair of spur gears, a ratchet, a wire winding pulley, and a manual handle, and one of the spur gears is driven by the motor. An opening/closing device for a skylight for daylighting, characterized in that the other spur gear, a ratchet, a wire winding pulley, and a manual handle are arranged coaxially.