JPH09255280A - Electric wire trolley guide with brace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop an electric wire trolley guide movable along a trolley rail via moving wheels in the brake-applied state when it is not moved and surely prevent incidental movement by providing a braking means to stop the movement of a main body against the trolley rail. SOLUTION: A base section is provided movably via moving wheels 20 rotatably held on axles in a trolley rail 4 having a C-shaped cross section, and the main body 25 of an electric wire trolley guide 13 is fitted to the lower section of the trolley rail 4 via a pin 24. A thick plate-like frictional member 26 made of a synthetic resin is fixed at the upper section of the main body 25. When the main body 25 is fitted, a spring 28 arranged coaxially with the pin 24 is arranged between the lower face 25a of the upper section of the main body 25 and a washer nut 27 in the compressed state, the frictional member 26 is kept in contact with the lower face 4b of the trolley rail 4 by the spring force, and it exerts a braking action to prevent the movement of the main body 25 in the direction of an arrow B except when a suspended cargo is lifted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip electric wire trolley guide, and more particularly to a friction member that abuts on a trolley rail when not moving to stop when the brake is operating, and to release the brake when moving. For new improvements to

[0002]

2. Description of the Related Art As a wire trolley guide of this type which has been conventionally used, the structure shown in FIG. 3 is generally adopted. That is, what is denoted by reference numeral 1 in FIG. 3 is an overhead crane main body having a trolley rail 4 movably provided on the building support base 2 via traveling wheels 3, and an upper portion of the overhead crane main body 1 has an upper portion. A trolley rail 5 is provided. An electric control board 6 is provided at an end position of the overhead crane body 1, and the electric control board 6 is provided.
The connecting electric wire 7 connected to the upper trolley rail 5 is
Is connected to a hoisting and lowering traversing carriage 9 which traverses the ceiling crane main body 1 via a plurality of upper trolley guides 8 which are movably provided to the hoisting and lowering traversing carriage 9. It is configured to be controlled by the board 6.

The hoisting and lowering traverse carrier 9 is provided with a load 12 via a hoisting and lowering wire 10 and a hook 11.
The electric trolley rail 4 is provided with a plurality of electric wire trolley guides 13 movably in the transverse direction. One end of each electric wire 14 connected to each electric wire trolley guide 13 has the electric control panel 6 And the other end is connected to the operation box 16 operated by the worker 15. The electric wire trolley guides 13 are configured to be able to travel freely without any braking function for the trolley rails 4.

Next, the operation will be described. First, an operation box 1 for a worker 15 to remotely control the luggage 12.
When 6 is operated, a signal is transmitted to the hoisting and lowering traverse carrier 9 via the electric control panel 6, so that the hoisting and lowering of the load 12 can be performed via the hoisting and lowering wire 10 while moving on the overhead crane main body 1.

[0005]

Since the conventional electric wire trolley guide is constructed as described above, there are the following problems. That is, when performing an unloading and hoisting operation with an overhead crane having a configuration as shown in FIG. 3, an operator operates the operation box on the ground to move the hoisting and lowering traverse carrier to the upper part of the luggage, and the hoisting and lowering wire, Use the hook to sling. When carrying out this slinging work, there is no problem if there are two operators, but if there is only one worker, it is often necessary to temporarily remove the operation box from the hand to carry out the slinging work. At this time, the operation box returns to the original direction from the current position due to the tension of the electric wire of the trolley guide (broken line diagram in FIG. 3), and when the operator finishes the sling work and operates again, the operator operates the operation box. I had to go get it, and my work efficiency was extremely poor.

The present invention has been made to solve the above problems, and in particular, when not moving, the trolley rail is brought into contact with the friction member to stop in a state where the brake operates, and when moving, the brake is applied. An object is to provide an electric wire trolley guide with a non-slip that can be released.

[0007]

A non-slip electric wire trolley guide according to the present invention holds an electric wire connected to an operation box for remotely controlling the movement of a load suspended via an overhead crane main body. , In the electric wire trolley guide, which enables to move along the trolley rail through the moving vehicle connected to the body provided with the wire,
It is a structure having a braking means for stopping the movement of the main body with respect to the trolley rail.

More specifically, the braking means includes the main body, a pedestal portion that rotatably supports the moving vehicle, and a pin that hangs down from the pedestal portion and projects into the main body.
A spring is provided on the pin for supporting the main body so that the main body can move up and down, and a friction member provided on the upper part of the main body and selectively abutting on a lower surface of the trolley rail.

More specifically, the braking means is composed of an electromagnetic brake provided on the main body.

More specifically, the braking means is composed of a base portion for rotatably supporting the moving vehicle, and a brake provided on the base portion for stopping the rotation of the moving vehicle.

More specifically, the wire is connected to a hanger fitting provided at a lower portion of the main body and to which the electric wire is connected, and the friction member resists the total weight of the electric wire, the wire and the main body. The spring force of the spring makes contact with the trolley rail.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an electric wire trolley guide with a slip stopper according to the present invention will be described below with reference to the drawings. Note that the same or equivalent parts as those in the conventional example will be described using the same reference numerals. 1 is a side sectional view showing an electric wire trolley guide with a slip stopper according to the present invention, and FIG. 2 is a front view seen from the right side of FIG. The reference numeral 4 in FIGS. 1 and 2 has a longitudinal shape and a cross-sectional shape of C.
A trolley rail having a character shape, and a moving vehicle 20 rotatably held by an axle 20a in the trolley rail 4.
A pedestal portion 21 is movably provided along the longitudinal direction of the trolley rail 4 via.

As shown in FIG. 1, the base portion 21 has a base plate 22 having an overall V-shape, and the base plate 2.
2 and a support plate 24 fixed by screws 23 on the upper side of the base plate 2, and the moving vehicles 20 are located at both ends of the base plate 22. The lower portion 22a of the base plate 22 penetrates the lower opening 4a of the lower portion of the trolley rail 4 and hangs downward, and the pin 2 is protruded downward to the lower portion 22a.
4 is fixed.

A main body 25 having a rectangular frame-shaped cross section is vertically movable in the direction of arrow A in a state where the main body 25 having a rectangular frame-shaped cross section penetrates the pin 24 through the through hole 25a and projects downward. In the upper part of the main body 25, friction members 26 made of rubber or synthetic resin in the shape of a thick plate are fixedly arranged on both sides of the pin 24.

A washer nut 27 is screwed and fixed to a pin screw portion 24a formed at the lower end of the pin 24, and a spring 28 coaxially arranged at the outer peripheral position of the pin 24 has the main body 25. Is disposed in a compressed state between the lower surface 25a of the upper part of the and the washer nut 27,
The main body 25 is urged upward along the pin 24 by the spring force of 8, and the friction member 26 contacts the lower surface 4b of the trolley rail 4 to prevent the main body 25 from moving in the arrow B direction. It has a braking function. Therefore, the base 21 for rotatably supporting the moving vehicle 20 described above.
The braking means 5 for stopping the movement of the moving vehicle 20 and the main body 25 with respect to the trolley rail 4 by the main body 25, the pin 24, the spring 28, and the friction member 26.
0. In addition, the friction member 26 is the electric wire 1
4, the body 25 is configured to be lifted by the spring force of the spring 28 against the total weight of the wire 33 and the body 25, so that the body 33 always contacts the trolley rail 4 except when the wire 33 is pulled down. Is configured.

A hanger fitting 32 is connected to the bottom portion 25b of the main body 25 by a connecting screw 30 and a nut 31, and a wire 33 is connected to the hanger fitting 32, and an electric wire clamp fitting 34 and a cushion. The electric wire 14 is clamped and connected via the material 35.

Next, the operation will be described. Since the usage state of the trolley rail is similar to that of the conventional example of FIG. 3, the configuration and operation of FIG. 3 will be commonly used for description. First, when slinging the luggage 12, first, pull the wire 33 downward in the state of FIG.
Is pushed downward in the direction of arrow A against the spring force of the spring 28, so that the brake operation state due to the contact between the friction member 26 and the trolley rail 4 is released, and in this state, the wire 33 is moved to the luggage 12 side. It is possible to move the electric wire 14 and the operation box 16 in the same manner by moving to.

When the pulling of the wire 33 is released in the above-mentioned state, the main body 25 is returned upward due to the spring force of the spring 28, the friction member 26 contacts the trolley rail 4, and the main body 25 is braked. Stopped at the position. Next, by operating the operation box 16, the hoisting and lowering traverse moving carriage 9 is operated via the electric control panel 6, and the hoisting and lowering wire 10 is raised to move the moving carriage 9 to move the transported object 12. Can be moved to any position. In this case, as described above, since the friction member 26 of the electric wire trolley guide 13 located at the foremost abuts the trolley rail 4 to generate the braking action, the operation by the operation box 16 is performed as in the conventional case. The electric wire trolley guide 13 does not move to the position shown by the dotted line in FIG.
With 5, it is possible to perform all operations reliably. In the present embodiment, a member made of rubber or the like has been described as the friction member 26, but a structure in which the upper surface of the main body 25 is roughened, a structure in which a tape is attached, without using such a member made of rubber or the like, A structure in which an adhesive having a weak adhesive property is applied to the upper surface can be used as the friction member 26 to have the same braking action as described above. The above-mentioned braking means 50 is not limited to the configuration shown in FIGS. 1 and 2, and for example, a well-known electromagnetic brake (not shown) is provided in the main body 25 and when the wire 33 is pulled. A switch (not shown) may be actuated so that the actuating body of the electromagnetic brake contacts the trolley rail 4. Further, the main body 25 is provided with a brake that rotates via a spring (not shown) so that the brake can be moved up and down by interlocking with a wire.
The rotation of can be stopped.

[0019]

Since the electric wire trolley guide with anti-slip according to the present invention is constructed as described above, the following effects can be obtained. That is, the braking action of the wire trolley guide is released only when the wire is pulled, and the braking action of the wire trolley guide is automatically restored when the pulling of the wire is stopped. The trolley guide does not move freely, and even one operator can easily and reliably perform slinging work.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an electric wire trolley guide with a slip stopper according to the present invention.

FIG. 2 is a front view seen from the right side of FIG.

FIG. 3 is an operation diagram showing an overhead crane using a conventional non-slip electric wire trolley guide.

[Explanation of symbols]

 1 Overhead Crane Main Body 4 Trolley Rail 12 Luggage 14 Electric Wire 16 Operating Box 20 Mobile Vehicle 21 Base 24 Pins 25 Main Body 26 Friction Member 28 Spring 32 Hanger Metal Fitting 33 Wire 50 Braking Means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masateru Tatsudan 1-6-1, Funakoshi Minami, Aki-ku, Hiroshima City, Hiroshima Prefecture Japan Steel Works, Ltd.

Claims (5)

[Claims] 1. A wire (14) holding an electric wire (14) connected to an operation box (16) for remotely controlling movement of a load (12) suspended movably via an overhead crane main body (1). In the electric wire trolley guide that can be moved along the trolley rail (4) via the moving vehicle (20) connected to the main body (25) provided with (33), the main body (for the trolley rail (4) ( Braking means (50) for stopping the movement of (25)
An electric wire trolley guide with non-slip. 2. The braking means (50) includes the main body (25),
A pedestal (21) that rotatably supports the moving vehicle (20), a pin (24) that hangs down from the pedestal (21) and projects into the main body (25), and the pin (24 ) For supporting the main body (25) so that the main body (25) can move up and down, and a friction member selectively provided on the lower surface of the trolley rail (4) provided on the upper part of the main body (25). (26) The electric wire trolley guide with slip prevention according to claim 1, comprising: 3. The non-slip electric wire trolley guide according to claim 1, wherein the braking means (50) comprises an electromagnetic brake provided on the main body (25). 4. The braking means (50) includes a base portion (21) for rotatably supporting the moving vehicle (20) and rotation of the moving vehicle (20) provided on the base portion (21). The non-slip electric wire trolley guide according to claim 1, further comprising a brake for stopping. 5. The electric wire provided under the main body (25)
The hanger fitting (32) to which (14) is connected has the wire (3
3) is connected, and the friction member (26) resists the total weight of the electric wire (14), the wire (33) and the main body (25) by the spring force of the spring (28), and the trolley rail (4). ), The non-slip electric wire trolley guide according to claim 2.