JPH08208142A - Plunger mounting/demounting tool of electromagnetic brake device - Google Patents

Abstract

PURPOSE: To provide a plunger mounting/demounting tool of an electromagnetic brake device by which the plunger can be mounted/demounted easily. CONSTITUTION: The tool in the title is composed of a handle 14 connected to a rod 12 having a screw 11 screwed in a screw hole 9 formed on the upper surface 8 of the plunger 6 of an electromagnetic brake device on its lower end. At the time of mounting/demounting of the plunger 6, the screw 11 of the rod 12 is screwed in the screw hole 9 of the plunger 6 and the plunger 6 is extracted or inserted by grasping the handle 14. Thereby, the mounting/ demounting operation of the plunger can be carried out efficiently and safely.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plunger attaching / detaching tool of an electromagnetic brake device for braking an elevator hoisting machine.

[0002]

2. Description of the Related Art FIG. 2 is a front view showing an electromagnetic brake device provided in an elevator, which is shown in Japanese Utility Model Laid-Open No. 55-92679. In this figure, 1 is a pair of movable arms, and 2 is a shoe fixed to the movable arm 1. Reference numeral 3 is a drum that rotates integrally with a hoist that winds up a rope that moves a car (not shown). The shoe 2 presses the drum 3 to stop the rotation of the drum. Further, 4 is a lever for rotating each movable arm 1, 5 is a rod for operating the lever 4, and 6 is a plunger for moving the rod 5 up and down. The plunger 6 is arranged inside a coil (not shown). Reference numeral 7 is a cover mounted on the upper portion of the plunger 6.

For example, when the car is stopped on a predetermined floor, a coil (not shown) is demagnetized, the plunger 6 rises with it, and the rod 5 rises integrally with it.
The movable arm 1 is rotated via the lever 4 so as to be closed, and the shoe 2 comes into contact with the drum 3 to brake the drum 3. As a result, the hoist (not shown) connected to the drum 3 is held so as not to rotate. Also, when raising or lowering the car,
A coil (not shown) is excited, the plunger 6 is lowered accordingly, the rod 5 is lowered integrally therewith, and the movable arm 1 is rotated via the lever 4 so as to open outward.
The shoe 2 is separated from the drum 3, and the braking of the drum 3 is released. As a result, the hoist (not shown) connected to the drum 3 can rotate. That is, the rotation of the hoist moves the rope (not shown) that lifts the car, and the car moves up and down.

[0004]

In the above electromagnetic brake device, the plunger 6 and the like are periodically disassembled in order to stably maintain the performance, and the degree of wear of the plunger 6 and the like is examined. There is. In this case, the work of pulling the plunger 6 upward after removing the cover 7 is performed. However, since the weight of the plunger 6 is usually about 30 kg, the pulling operation is not easy and the work efficiency can be improved. There was no problem.

Further, since the position for pulling out the plunger 6 is higher than the floor of the machine room in which it is installed by about 1 m to 2.5 m, it is not easy to pull out the plunger 6, which causes a problem in work safety. there were.

The present invention has been made in view of the above circumstances in the prior art, and an object thereof is to provide a plunger attaching / detaching tool of an electromagnetic brake device capable of easily attaching / detaching the plunger.

[0007]

To achieve this object, the present invention provides a plunger attaching / detaching tool for an electromagnetic brake device for attaching / detaching a plunger provided in an electromagnetic brake device for braking an elevator hoisting machine. The rod has a screw at the lower end to be screwed into a screw hole formed on the upper surface of the plunger, and a handle connected to the rod.

[0008]

When the plunger of the electromagnetic brake device is attached or detached, the screw of the rod can be screwed into the screw hole on the upper surface of the plunger, the handle can be pulled out, or the plunger can be pulled out or inserted. The plunger can be easily attached and detached.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a plunger attaching / detaching tool for an electromagnetic brake device of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of an essential part showing an embodiment of the present invention.

In FIG. 1, 6 is the above-mentioned plunger, and two screw holes 9 are formed in the upper surface 8 thereof. Reference numeral 10 denotes a pair of detachable tools of this embodiment,
Each of the screws 11 is screwed into the above-described screw hole 9 at the lower end.
A handle 1 having a rod 12 and a space portion 13 which is connected to the upper end of the rod 12 and into which a worker's hand can be inserted.
It consists of 4 and.

In the embodiment thus constructed, for example, when the electromagnetic brake device is disassembled, after removing the cover 7 shown in FIG. 2, the screws 11 at the lower ends of the rods 12 of the pair of detachable tools 10 are removed. Plunger 6 screw hole 9
The operation to be screwed into is performed. After making such a state, the operator performs an operation of gripping both the grips 14 of the pair of detachable tools 10 and pulling them upward. As a result, the plunger 6 is pulled out. When assembling the electromagnetic brake device, the above may be reversed.

In this embodiment, the plunger 6 can be easily pulled out or inserted by gripping both of the detachable tools 10, and this detachment work can be performed efficiently. Further, since the plunger 6 can be easily attached / detached, the safety of the work can be secured and the attachment / detachment work performed at a relatively high position can be dealt with.

The screw hole 9 formed in the upper surface 8 of the plunger 6 may be specially formed for the detachable tool 10, or if it is already provided for attachment of another member, Such screw holes may be utilized.

[0014]

Since the present invention is constructed as described above, the efficiency of the plunger attachment / detachment work can be improved as compared with the prior art, and the plunger attachment / detachment work can be performed more safely than before. .

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of a plunger attaching / detaching tool of an electromagnetic brake device of the present invention.

FIG. 2 is a front view showing a conventionally known electromagnetic brake provided in an elevator.

[Explanation of symbols]

 6 Plunger 8 Upper surface 9 Screw hole 10 Desorption tool 11 Screw 12 Rod 13 Space part 14 Handle

Claims (1)

[Claims] 1. A plunger attaching / detaching tool for an electromagnetic brake device for attaching / detaching a plunger provided in an electromagnetic brake device for braking an elevator hoisting machine, wherein a screw screwed into a screw hole formed on an upper surface of the plunger. A plunger attachment / detachment tool for an electromagnetic brake device, which comprises a rod having a bottom end and a handle connected to the rod.