JPS6323417Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a trolley in which a suspended arm supports a foil that traverses on a rail provided on a girder.

[Background of the idea]

For example, a trolley that supports a foil traveling on a rail provided on a girder by a suspended arm is
It is as shown in the figure. In Figure 1,
10 is a trolley, 1 is a hanging arm, 2 is a girder, 3 is a foil, and 5 is a rail on the girder. In such a trolley, when a load is applied to the trolley, the long suspension arm 1 and the trolley frame move to the first
It deforms elastically as shown by the dotted line in the figure. For this reason, the trolley wheel 3 supported by the suspension arm 1 is pulled outward, and the tread of the foil 3 and the side surface of the rail 5 come into contact with excessive force, which may impede the trolley's traverse movement. It was hot.

For this reason, the width of the foil tread must be made larger than the width of the rail tread to the extent that this elastic deformation can be absorbed, resulting in a very uneconomical design.

On the other hand, the relationship between the dimensions of this foil 3 and the longitudinal dimension of the foil axis of the rail 5 is determined by the length of the collar 6 shown in FIG. do the calculations,
The decision was made based on the results, but due to the complicated shape of the trolley frame, it was difficult to accurately match the actual amount of deformation with the calculated value, which sometimes caused problems during test runs.

[Purpose of invention]

An object of the present invention is to provide a trolley that eliminates the above-mentioned hindrances to traversing the trolley by very easily adjusting the positional relationship between the traversing foil and the rail.

[Summary of the idea]

The present invention is characterized by providing a spring that supports the foil and a holder that supports the spring and adjusts the expansion and contraction of the spring in order to enable movement of the foil in the axial longitudinal direction.

[Example of idea]

The present invention will be explained below using specific examples.
FIG. 3 shows an embodiment of the present invention. In this figure, 2 is a gutter and 5 is a rail. 3a is a rotating shaft that supports the foil 3, and is rotatably supported by the hanging arm 1. The foil 3 is installed so as to be movable in the axial direction of the rotating shaft 3a. 4, 4 is a compression spring, and 7, 7 is a holder, which adjusts the length of the compression spring 4. The holder 7 has plates 10, 10 in contact with both ends of the spring 4, and
It consists of a bolt 8 and a nut 9 for adjusting the length. The plate 10 is movable in the axial direction with respect to the rotating shaft 3a. The bolt 8 is installed on the outer peripheral side of the compression spring 4. A compression spring 4 and a holder 7 are arranged on each side of the foil 3. Plate 1 on the right end of holder 7 on the right side of holder 3
0 is in contact with the left end member 21a of the bearing 21 that supports the rotating shaft 3a. The member 21a does not move in the axial direction. Therefore, the member 21a is
It becomes the standard of reference. On the other hand, the left end plate 10 of the holder 7 on the left side of the foil 3 is in contact with a seat 22 fixed to the shaft end. Since the seat 22 does not move in the axial direction, it serves as a reference seat for the holder 7.

In this configuration, by adjusting the lengths of the left and right holders 7, 7, the position of the foil 3 in the axial direction can be changed (set). That is, the position of the foil 3 from the left and right reference seats 22, 21a is determined (can be set) by the lengths of the left and right holders 7, 7. Therefore, during a trial run, the amount of movement of the wheel 3 in the axial longitudinal direction due to the elastic deformation of the suspension arm 1 can be measured, and the position of the wheel 3 can be set to obtain the most preferable positional relationship between the wheel and the rail. This makes it possible to absorb problems caused by calculation errors. On the other hand, if lateral pressure is generated between the tread of the foil 3 and the side surface of the rail 5 due to inaccurate straightness of the rail 5 while the trolley is traveling, either the left or right spring 4
Since the foil moves in the axial direction due to the displacement, the side pressure can be alleviated. If the situation is such that side pressure is constantly generated, the position of the foil 3 is readjusted using the holder 7. In addition,
The fit between the foil and the shaft is a smooth fit using a spline or the like.

[Effect of idea]

As explained above, according to the present invention, the positional relationship between the foil and the rail can be adjusted very easily, and the trolley can be traversed without any trouble.

[Brief explanation of the drawing]

FIG. 1 shows a suspended trolley, FIG. 2 shows an example of conventional foil support, and FIG. 3 shows an embodiment of the present invention. 1... Chin-up arm, 2... Gata, 3... Foil,
3a... Rotating shaft, 4... Compression spring, 5... Rail, 7... Holder, 8, 9... Bolt/nut, 10... Plate, 21a, 22... Reference seat.

Claims (1)

[Scope of Utility Model Registration Claim] A trolley that travels by means of foils installed at the upper ends of two hanging arms erected upward, which do not move in the axial direction on a rotating shaft attached horizontally to the hanging arms. Two reference seats are provided, and the foil is attached to the rotation shaft so as to be movable in the axial direction between the two reference seats, and between one of the reference seats and the foil, from one side of the reference seat. A first plate movable in the axial direction with respect to the rotating shaft, a first compression spring, and a second plate movable in the axial direction with respect to the rotating shaft are arranged in order, and the first plate and The second plate is connected to the second plate by a first bolt/nut whose length is adjustable, and between the other side of the reference seat and the foil, there is a connection between the other side of the reference seat and the rotation axis. a third plate that is movable in the axial direction with respect to the rotating shaft, a second compression spring, and a fourth plate that is movable in the axial direction with respect to the rotating shaft, and the third plate and the fourth plate are disposed in sequence; A trolley characterized by: and connected by a second bolt/nut whose length is adjustable.