JPH0530074Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a device that prevents foreign objects from falling onto ground equipment or products due to contact between the tongue rests by providing a foreign object receptacle at the lower end of the tong side guide pipe. It is related to.

[Conventional technology and its problems]

Depending on the nature of the work, tongs may be used to efficiently lift loads using automatic cranes. These tongs are suspended from the crane's club by a wire so that they can be raised and lowered. Therefore, when the tongs are raised, or when the tongs are kept stationary in the raised position and the crane (including the club) is moved, the tongs swing. To prevent this, a steady rest is provided between the club and the tongue. As shown in Fig. 4, this steady rest has a guide rod installed vertically on the club side, and a guide pipe on the tong side opposite to the guide rod, so that when the tongs are raised, the guide rod is inserted into the guide pipe, and the tongs are lifted up. There is one that provides a steady rest, and another that has a guide pipe vertically installed on the club side and a guide rod protruding from the tong side at a position opposite to the guide pipe as shown in FIG. However, in any of these methods, when the tongs are raised and the guide rod is inserted into the guide pipe, the outer circumferential surface of the guide rod may be damaged due to contact between the guide rod and the guide pipe.
Impurities such as dust adhering to the inner peripheral surface of the guide pipe, etc., or foreign matter generated by grinding of the guide rod or pipe, often fall onto ground equipment or products. Moreover, it is difficult to confirm that these impurities (foreign substances) have fallen onto products and equipment on the ground. For example, if this foreign material has fallen onto a coil in a coil yard for a press line and press processing is performed in that state, a defective product will be produced.

The present invention is designed to prevent foreign objects from falling from the steady rest of the tongs.

[Means for Solving the Problems] The device consists of a guide rod attached to the club side and a guide pipe into which the guide rod attached to the tong side can be inserted, and a foreign object receiving tray is provided at the lower end of the guide pipe.

〔Example〕

The present invention will be explained below based on the illustrated embodiments.

In the figure, reference numeral 1 denotes a club of an automatic crane that runs horizontally on a rail 3. A hoisting device 2 is provided on the club 1, and a guide rod 4 is vertically provided on the lower surface of the club 1.

Reference numeral 5 denotes tongs, which are equipped with a guide pipe 6 whose upper surface is opened in the shape of a morning glory.
When the tongs 5 are raised, the guide rods 4 vertically installed on the lower surface of the club are fitted so as to face each other, and at the bottom of the pipe 6 there is provided a removable foreign object tray 7, for example. Connecting flanges 61 and 71 are formed at the lower end of the pipe and the upper end of the foreign object tray, respectively, and both opposing flanges 61,
Fix the space between 71 and 71 with bolts. When the guide rod is inserted into the guide pipe, the foreign object tray 7 is rubbed against each other, and the impurities adhering to the guide rod and the guide pipe are scraped off and fall downward in the pipe. Foreign object tray 7
is provided, so the water is stored in this saucer,
It can prevent falling onto products or equipment below.

If this foreign object tray is cleaned regularly, the reliability of the automatic crane system can be ensured over a long period of time.

[Effect of idea]

The foreign object dropping device of the present invention consists of a guide rod attached to the club side and a guide pipe into which the above-mentioned guide rod attached to the tong side can be inserted.
In addition, since a foreign object receiving tray is provided at the lower end of the bide pipe, it is possible to prevent foreign objects from falling onto ground equipment or products, which has the advantage of preventing defects in products and equipment.

[Brief explanation of the drawing]

Figure 1 is a front view, Figure 2 is an enlarged view of the main parts, Figure 3
The figure is a sectional view, and FIGS. 4 and 5 are explanatory views of known examples. 1 is a club, 4 is a guide rod, 5 is a pair of tongs, 6 is a guide pipe, and 7 is a foreign object tray.

Claims (1)

[Scope of utility model registration request] A steady rest for tongs suspended from a club of a crane consists of a guide rod attached to the club side and a guide pipe attached to the tong side into which the above-mentioned guide rod can be inserted, and a foreign object receiving tray is provided at the lower end of the guide pipe. A device to prevent foreign objects from falling in the crane tong rest.