JPS6237762Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a guide wheel for a traveling vehicle that can discharge weeds, dirt, etc. on or near the guide rail when rolling on the guide rail.

When spraying chemical solutions in vegetable gardens, orchards, afforestation areas, etc. using a vehicle equipped with guide wheels that roll on guide rails, the chemical solution must be sprayed again after a certain predetermined period of time has elapsed after the chemical solution spraying has finished. In,
In particular, the guide rail may become clogged with weeds due to overgrowth of weeds near the guide rail, or dirt may accumulate on the guide rail, impeding the rolling of the guide wheel on the guide rail, and causing serious damage. There is also a risk that the guide wheels may separate from the guide rails.
Therefore, this invention aims to provide a guide wheel for a traveling vehicle that can remove obstacles such as weeds and dirt that accumulate on the guide rail from the guide rail during rolling. The width of the groove is made larger than the width of the guide rail, and cutters are formed on the outer periphery on both sides of the groove, and a discharge hole is provided between the tip of the cutter and the bottom of the groove. It is something.

An embodiment of this invention will be described below with reference to the drawings. A groove having a U-shaped or V-shaped cross section is formed on the outer periphery of the guide wheel W in the guide rail 2 which is erected and fixed to the substrate 1 embedded in the ground g. 3, and an appropriate number of discharge holes e are formed in parallel along the circumferential direction of the cutter C formed on the outer periphery of both sides of the groove 3 and between the tip of the cutter C and the bottom of the groove 3. - While drilling, the width d of the groove 3 is slightly larger (approximately 1 mm) than the width f of the guide rail 2, and it does not matter whether the guide wheel W is in a straight part or a curved part in the guide rail 2. While ensuring smooth rolling, the guide rail 2 is also prevented from falling sideways. In addition, both ends of a support shaft 4 that rotatably supports the guide wheel W at its center are inserted and fixed under a holding frame 5 having an inverted U-shaped cross section, and are erected and fixed at the center of the upper surface of the holding frame 5. The rotating shaft 6 is rotatably supported by a thrust ball bearing 7 mounted on the vehicle body B of the traveling vehicle. A limit cam 8 is attached to the side of the rotating shaft 6 on the upper surface of the holding frame 5, and the limit cam 8 is attached to a limit switch roller r attached to a limit switch S that is suspended and fixed to the lower part of the vehicle body B so that it can freely approach and separate from the limit cam 8. When the guide wheel W contacts or reverses some obstacle and leaves the guide rail 2, the limit cam 8 automatically presses the limit switch roller r, and the engine (not shown) It is possible to stop the drive of the In the figure, a ball bearing 11 denoted by 10 is a pin to prevent the support shaft 4 from coming off.

Since this device has the above-mentioned configuration, when the guide wheel W rolls on the guide rail 2 toward the left in FIG. 2, weeds, dirt, or mud accumulated on or near the guide rail 2 (not shown) are cut and crushed by the cutter C, and the fragmented weeds, earth, mud, etc. that remain in the groove 3 are discharged outward from the discharge hole e.
The guide wheel W can smoothly roll on the guide rail 2, and the cutter C is formed on the outer periphery of the guide wheel W, so that the guide wheel W can cut and crush obstacles such as weeds, earth and sand, and mud. This can be done automatically as the cutter rotates, and since the discharge hole e is drilled near the cutter C, small pieces of weeds can be discharged reliably and quickly. Groove 3
Since there is only a small difference between the width d of the guide rail 2 and the width f of the guide rail 2, this not only prevents the guide rail 2 from falling sideways, but also prevents debris such as weeds from accumulating in the groove 3. - There is no risk of sticking, and since the overall structure is very simple, it can be manufactured robustly and inexpensively, and has practical benefits such as being able to be widely supplied to customers.

Although the above examples have been described in vegetable gardens and orchards, the present invention can also be applied to construction sites such as buildings, bridges, and tunnels.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention, and FIG. 1 is a partially cutaway longitudinal sectional front view, and FIG. 2 is a left side view of the main part of FIG. 1. 2... Guide rail, 3... Concave groove, C... Cutter, d... Concave groove width, e... Discharge hole, f...
Guide rail width member, W...guide wheel.

Claims (1)

[Claims for Utility Model Registration] (1) The width of the groove that fits into the guide rail is made larger than the width of the guide rail, and cutters are formed on the outer periphery on both sides of the groove, A guide wheel for a traveling vehicle that has a discharge hole between the tip of the cutter and the bottom of the groove. (2) A guide wheel for a traveling vehicle according to claim 1 of the utility model registration claim, wherein a plurality of discharge holes are provided along the circumference.