JPS5851357Y2 - Shutter safety device that adjusts the elevation using a transmitter installed on the bottom seat plate of the shutter - Google Patents

Description

[Detailed explanation of the invention] This invention uses a transmitter installed on the lower end of the jitter, which is equipped with a lifting rod that directly interrupts and stops the transmitter installed on the seat plate, for the safety of the shutter. It is related to the device.

Generally, a shutter lifting/lowering device is opened/closed and stopped using upper and lower limit switches.

However, if there is an obstacle such as a pebble of about 2 cm in the lower part of the shutter of the transmitter emergency device, the transmitter will be activated and the shutter will not be able to close and will repeat the raising and lowering action several times. .

Then, the alarm buzzer goes off and the alarm is sent to the security office.

Therefore, even if there is a small obstacle such as a pebble, a warning buzzer will sound or a security guard must rush to the scene each time to notify the security office, which is extremely troublesome in terms of management.

Furthermore, if the shutter hits an obstacle and moves up and down several times, a situation such as reverse winding may occur, causing damage to the shutter.

This idea improves the shortcomings of conventional shutters, and includes a detector and a moving transmitter on the seat plate at the bottom of the shutter, and the transmitter is connected to a microswitch installed in the stop switch frame. do.

This stop switch frame is installed at the end of the seat plate, and the lifting rod that operates the micro switch is housed inside.
The elevating rod is always installed so as to protrude downward from the lower end of the obstacle detection box attached to the entire length of the lower surface of the seat plate.

However, slightly above the shutter closing point, the lower tip of the elevator rod inside the stop switch frame presses against the floor and rises, activating and disconnecting the microswitch, cutting off the transmitter connected to the microswitch, and causing its activation. This will cause the system to stop.

Next, an embodiment of this invention will be described with reference to the drawings. A shutter 1 is constructed by connecting a number of slats, and a seat plate 2 is connected to the lowermost end of the shutter 1.

An obstacle detection box 3 is attached to the entire length of the lower surface of the seat plate 2, and a transmitter mount 6 having a transmitter 5 is attached thereto.

Furthermore, a stop switch frame 4 is installed at the end of the seat plate 2.

The obstacle detection box 3 houses a detector 9 made up of various switches, etc., and is also equipped with an elevator frame 14 equipped with a switch 7 and a spring 8 for operating the detector 9.

Next, the stop switch frame 4 accommodates therein a microswitch 10 having a roller contact 11, and a spring 13 is wound around an elevating rod 12 that operates the roller contact 11 to raise and lower the switch. .

The length of the portion of the lifting rod 12 that protrudes from the stop switch frame 4 is adjusted appropriately below the lower end of the obstacle detection box 3 so that it does not protrude.

Inside the winding body 19, there is a receiver 16 that receives a wireless signal from the transmitter 5, and a control module 17 that controls this receiver 16.
and a switch 18 connected to the control panel 17.

Reference numeral 15 indicates left and right guide rails that guide the shutter 1.

This device has the above-mentioned configuration, and to explain its operation now, when the shutter 1 is to be closed, the shutter 1 is started to descend by operating the descent start switch (not shown), and during this descent, the shutter 1 is started to descend. If an obstacle exists, the detector 9 of the various switches in the obstacle detection box 3 at the lower end of the seat plate 2 detects it, transmits a wireless signal from the transmitter 5, receives this transmission with the receiver 16, and performs control. The switch 18 is operated via the panel 17 to control the raising mechanism of the switch 18 and the lowering mechanism operated by the lowering start switch, and is also connected to an alarm or the like to notify of a failure.

Next, for example, about 2 centimeters of pebbles etc. are
If there is an obstacle inside or outside M, the suspension rod 12 protruding downward from the stop switch frame 4 will touch the floor before the obstacle detection box 3 of the seat plate 2 comes into contact with the obstacle. When touched, it rises against the spring 13 and operates the mouth-to-flare contact 11 at the bulge, activating the microswitch 10, disconnecting the transmitter 5 connected to it, and operating the entire shutter. The lower end of the shutter is stopped at the lower limit setting position set by the protrusion dimension of the elevating rod.

This device has the above-mentioned configuration, and even if there is a small obstacle such as a pebble while the shutter is moving up and down the guide rail, the clearance at the bottom of the shutter is small and it will not cause any obstruction as when closing the shutter normally. This is extremely convenient because it can be treated without having to repeatedly raise and lower the shutter or sound an alarm such as a buzzer, and unlike conventional safety devices, the transmitter can be used even if there is a small obstacle such as a pebble. This prevents the occurrence of significant noise and the effort required to do so, as well as the problem of the shutter flipping backwards or being damaged. There is an excellent practical effect of saying that there is no such thing.

Furthermore, the lifting rod equipped with a spring that operates the microswitch provided inside the stop switch frame according to this invention is made to protrude and hang downward from the lower end of the obstacle detection box.
The elevating rod has the effect of ensuring that the obstacle detection box is pushed up before it touches the floor and returns to its hanging state once it leaves the floor.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a front view of this invention, Fig. 2 is a front view with a part of the main part of the seat board removed, and Fig. 3 is a vertical side view of the same. FIG. 4 is a front view showing the inside of the stop switch, and FIG. 5 is a plan view with a part cut away. Code 1 is the shutter, 2 is the seat plate, 3 is the obstacle detection box, 4
1 is a stop switch frame, 5 is a transmitter, 7 is a switch, 9 is a detector, 10 is a microswitch, 12 is a lifting rod, and 16 is a receiver.

Claims (1)

[Scope of utility model registration request] In a shutter safety device that adjusts the elevation using a transmitter installed on the seat plate at the lower end of the shutter, an obstacle detection box containing a detector is installed along the entire length of the lower part of the seat plate, and the transmitter is stopped at the end of the seat plate. A stop switch frame is installed inside the stop switch frame, and a micro switch is installed inside the stop switch frame.
A shutter transmitter emergency stop device is equipped with an elevating rod whose tip is provided with a spring that operates a microswitch and projects downward from the lower end of an obstacle detection box.