JPS6137591Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crawler-type traveling device installed in a traveling machine such as a combine harvester.

In general, the crawler of a crawler-type traveling device has a tensioning idler wheel moved to the relaxed side and suspended from the roller, and then the tensioning idler wheel is moved in the tensioning direction by tightening the tensioning bolt. Conventionally, during this crawler tensioning work, the upper half of the relaxed crawler would hang down and get in the way, making it difficult for tightening tools such as spanners to engage the tension bolts. Difficult to operate,
Moreover, since the vertical tightening angle of the tightening tool is limited to a small value, it is necessary to use a special tool, and in addition, the tightening operation is forced at a small tightening angle, which significantly reduces work efficiency. It had some disadvantages.

The present invention was devised in order to eliminate these drawbacks in view of the above-mentioned actual situation, and is designed so that the outer upper edge of the crawler in a relaxed state can be locked to the fuselage frame above the tightening bolt. We have developed a crawler-type traveling device that eliminates the sagging phenomenon of the upper half of the crawler during crawler tensioning work, and allows efficient tensioning operation at a large tightening angle using a general-purpose tool such as a spanner. The object is to provide a crawler locking device.

The structure of the present invention will be explained based on an embodiment shown in the drawings. Reference numeral 1 is a body frame of a traveling machine such as a combine harvester. A crawler type traveling device 3 is equipped. The crawler type traveling device 3 is
A drive wheel 4 on one side, a tension idler wheel 5 on the other side, an idler wheel 6 provided between both wheels 4 and 5, and a crawler 7 suspended between these wheels 4, 5, and 6. The tension idler wheel 5 is connected in the longitudinal direction of the aircraft via a tension bolt 10 that penetrates a support member 9 provided at the side end of the tension idler wheel 5 of the running frame 8. It is now possible to move to

In this embodiment, hook-shaped locks 11 and 11a are provided on the bottom surface of the fuselage frame 1 at two locations: at the front end and at a position above the tension bolt 10. 11 is crawler 7
It is located above the outer edge of the fuselage so that the inside of the fuselage is in an open state. The outer edge of the upper half of the crawler 7 in a relaxed state can be locked to the locking body 11.

Next, the operation of the present invention constructed as described above will be explained. To suspend the crawler 7 on the crawler-type traveling device 3, first suspend the crawler 7 with the tensioning idler wheels 5 positioned at the relaxed position on the driving roller 4 side, and then tighten the tension bolts 10. All you have to do is tighten it, but in this case, tighten the outer edge of the upper half of the hanging crawler 7 as shown in Figures 3 and 4.
As shown in the figure, if the tension bolt 10 is temporarily locked in the locking body 11 on the side of the tension bolt 10, the tension bolt 10 located at the center in the width direction of the crawler 7 will not be disturbed by the crawler 7, and the tension bolt 10 will not be disturbed by the crawler 7. A tightening tool can be engaged with the bolt head 10a to perform the tightening operation. Moreover, since the upper half of the crawler 7 is locked above the tension bolt 10, the space around the tension bolt 10, especially the vertical space, becomes large, so the tightening angle with the tightening tool is large. This enables the tensioning operation of the crawler 7 to be performed with high efficiency. Then, when the slack is almost eliminated, the crawler 7 can be easily removed from the locking body 11 by pushing it with your foot, and then tightening the tension bolt 10 further to move the crawler 7 to the desired position. It can be installed under tension.

The locking bodies 11 and 11a can be used to lock a loading platform rope to prevent the aircraft from sliding laterally when transporting a vehicle using a truck or the like, or to lock a towing rope. can.

In summary, in the crawler-type traveling device installed below the fuselage frame, the upper half of the crawler is positioned above the tensioning bolt that tensions and loosens the tensioning idler wheels of the crawler-type traveling device. Since a locking body that can lock the outer edge is provided, if the outer edge of the upper half of the crawler suspended in a relaxed state is locked to the locking body, the sagging phenomenon of the crawler will be eliminated and the tension bolt will be removed. Since the surrounding space of the crawler is increased, even if a general-purpose tightening tool such as a spanner is used, efficient crawler tensioning work can be performed at a large tightening angle.

[Brief explanation of the drawing]

The drawings show an embodiment of a crawler locking device in a crawler type traveling device according to the present invention, in which FIG. 1 is an overall side view of the crawler type traveling device, FIG. 2 is a vertical sectional view of the same, FIG. 3 is a longitudinal sectional view illustrating the operation, and FIG. 4 is a side view of the same. In the figure, 1... body frame, 3... crawler type traveling device, 5... tension idler, 7... crawler, 10... tension bolt, 11... locking body.

Claims (1)

[Scope of utility model registration request] In the crawler-type traveling device installed below the aircraft frame, the outer edge of the upper half of the crawler is positioned above the tension bolt that tensions and loosens the tension idler of the crawler-type traveling device. A crawler locking device for a crawler type traveling device, characterized in that a lockable locking body is provided.