JP2006062787A - Operation panel for temporary car gondola - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation panel for a car gondola capable of being easily operated by one worker and operating a temporary car gondola at high speed. <P>SOLUTION: In the operation panel for the temporary car gondola, a cam switch for selecting a left motor singly, selecting a right motor singly and simultaneously selecting the left and right motors; and a whist switch having an ascending switch and a descending switch are provided. Further, by the combination of operations of the cam switch and the whist switch, the ascending or descending action of the left motor is singly performed, the ascending or descending action of the right motor is singly performed and ascending or descending actions of the left and right motors are simultaneously performed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a temporary gondola operation panel.

  The temporary gondola is lifted and lowered along an outer wall of a high-rise building for work such as cleaning of the outer wall of a high-rise building by an operator. The raising and lowering is selectively performed by changing the direction of the rotation direction of each motor that drives the ropes arranged on both sides of the temporary gondola. The direction of the rotation direction of the motor is determined by operating the up and down switches provided on the two gondola operation panels. In addition, currently used motors are driven by a single-phase 100V of 50 or 60 Hz.

  FIG. 4 is a schematic diagram showing a configuration of a conventional gondola operation panel. In FIG. 4, two hoist switches 12 and 22 are used to operate the left and right motors 14 and 16, respectively. For example, to raise the left motor 14, press and hold the push button switch 12a of the hoist switch 12, and to lower the left motor 14, keep pressing the push button switch 12b of the hoist switch 12, while turning the right motor 24 off. In order to raise, the push button switch 22a of the hoist switch 22 is continuously pushed, and in order to lower the right motor 24, the push button switch 22b of the hoist switch 22 is kept pushed. In the figure, 16 indicates a 100V power connector, 18 indicates an emergency stop switch, and 20 indicates a pilot lamp.

  FIG. 5 is a schematic diagram showing a conventional motor drive circuit. In FIG. 5, many circuit portions not particularly related to the present invention are omitted. In FIG. 5, 50V or 60Hz power supply 100V is supplied to the left and right motors by operating the gondola operation panel. Also, 100V is supplied for lighting the work lamp.

  Now, for example, when the left side of the temporary gondola is to be raised by the rope on the left side of the temporary gondola, if the switch 12a of the gondola operation panel 12 is continuously pressed, three linkages displaying UP of the left motor control circuit 28 are displayed. The contact for contact remains closed, the left motor 14 is rotated in a predetermined direction, and the left side of the temporary gondola rises along the rope.

  When the left side of the temporary gondola is to be lowered by the rope on the left side of the temporary gondola, if the switch 12b of the gondola operation panel 12 is continuously pressed, the three interlocking contacts displayed as DOWN of the left motor control circuit 28 are closed. The left motor 14 is rotated in the direction opposite to the ascent, and the left side of the temporary gondola is lowered along the rope.

  Similarly, raising and lowering of the right side of the temporary gondola can be performed by selectively closing the contact point indicating UP or DOWN of the right motor control circuit 26 by operating the gondola operation panel 22.

  According to the conventional gondola operation panel that operates the temporary gondola, because there are obstacles that protrude such as signboards and eaves in the building, workability is not good, and the left and right gondola operation panels are usually operated by two workers. Operated. In addition, since the production of capacitors used in the current gondola operation panel has been discontinued, a large amount of money is required to produce the same gondola operation panel. Since the motor is driven at a single phase of 100 V at 50 or 60 Hz, the temporary gondola is very slowly moved up and down.

  Accordingly, an object of the present invention is to provide a gondola operation panel that can be easily operated by one operator and can operate a temporary gondola at high speed.

  The present invention provides a gondola operation panel for operating a temporary gondola, which includes a cam switch for selecting a left motor alone, a right motor alone, and left and right motors simultaneously, and a hoist switch having a rise switch and a drop switch. In combination with the operation of the cam switch and the hoist switch, the left motor is lifted or lowered, the right motor is lifted or lowered, and the left and right motors are lifted or lowered simultaneously. Features.

  According to the present invention, it is possible to obtain a gondola operation panel that can be easily operated by one operator and that can operate a temporary gondola at high speed.

  In the present invention, the gondola operation panel for operating the temporary gondola has a cam switch for selecting the left motor alone, the right motor alone, and the left and right motors at the same time, and a hoist switch having an up switch and a down switch. Then, by the combination of the operation of the cam switch and the hoist switch, the left motor is lifted or lowered, the right motor is lifted or lowered, and the left and right motors are lifted or lowered simultaneously.

  Next, examples of the present invention will be described. FIG. 1 is a view showing a gondola operation panel according to an embodiment of the present invention, FIG. 1a is a plan view, and FIG. 1b is a side view.

  In FIG. 1, the gondola operation panel 30 is provided with a hoist switch 32, of which 32a is for lifting and 32b is for lowering. A cam switch 42 having three contacts for selecting the left motor alone, the left and right motors at the same time, and the right motor alone is provided on the upper surface. In the figure, 36 denotes a power connector, 38 denotes an emergency stop button, 40 denotes a pilot lamp, 44 denotes a limit switch for ascent restriction, and 46 denotes a 3P receptor. Since these are irrelevant to the configuration of the present invention, detailed description thereof is omitted.

  FIG. 2 is a diagram showing a motor drive circuit according to the embodiment of the present invention. In FIG. 2, three-phase 200 V is supplied to the left and right motors 50 and 52 from a power source (100 V, 50/60 Hz) through inverters (converting two-phase 100 V to three-phase 200 V) 54 and 56. . Using the power supply of 100V to the work lamp, power is supplied to the fan 58, the air is sent to the inverters 54 and 56, and the inverter 54.56, which may cause malfunction when it exceeds 60 ° C, is cooled.

  FIG. 3 is a diagram for explaining the operation of the inverter from the gondola operation panel. In FIG. 3, when the left side of the temporary gondola is going to be raised, the cam switch 42 is operated to close the contact of the left motor and the push switch 32a for the hoist switch 32 is kept pressed to display in UX. Leave the contact to close. Thereby, the left motor rotates in the upward direction.

  When the left and right motors simultaneously raise both sides of the temporary gondola at the same time, the cam switch 42 is operated to simultaneously close the left motor contact and the right motor contact, and keep pressing the lifting switch 32a of the hoist switch 32. Thus, the contact point displayed by UX is kept closed. As a result, the left and right motors rotate in the upward direction.

  Similarly, by driving the cam switch and the hoist switch, it is possible to independently drive the left motor or the right motor to move up and down, or to drive the left and right motors at the same time.

It is a figure which shows the gondola operation panel of the Example of this invention, FIG. 1a is a top view, FIG. 1b is a side view. It is a figure which shows the drive circuit of the motor of the Example of this invention. It is a figure for demonstrating operation from the gondola operation panel to an inverter. It is the schematic which shows the structure of the gondola operation panel of a prior art example. It is the schematic which shows the drive circuit of the motor of a prior art example.

Explanation of symbols

30 Gondola control panel 32 Hoist switch 42 Cam switch 50, 52 Motor 58 Fan

Claims (3)

In the gondola operation panel that operates the temporary gondola,
A cam switch for selecting the left motor alone, the right motor alone, and the left and right motors simultaneously,
Having a hoist switch with an up switch and a down switch;
By combining the operation of the cam switch and the hoist switch, the left motor is lifted or lowered independently, the right motor is lifted or lowered, and the left and right motors are lifted or lowered simultaneously. A gondola operation panel.   2. The gondola operation panel according to claim 1, wherein a power is supplied to the motor through an inverter that converts a 50/60 Hz 100V power source into a three-phase 200V.   3. The gondola operation panel according to claim 2, further comprising a fan for cooling the inverter.