JPH0252502U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an elevational view of this device when forward work is performed under normal usage conditions, Fig. 2 is a plan view of the same,
Figure 3 is a plan view of the same reverse operation, Figure 4 is a detailed cross-sectional view of the lower part of the transmission box, the bearing box and the pivot part, and Figure 5 is the side view of the transmission box with the disk tiller blade removed. , a detailed elevational view showing an embodiment of the reversing operation mechanism portion of the bearing box, and FIG. 6 is a system diagram showing an embodiment of the transmission mechanism including the reversing mechanism. The main parts in the figure are 1 a transmission box, 2 a bearing box, 1a a pivot, 1b a transmission mechanism, 1c a reversing mechanism, 3 a reversing operation mechanism, 4 a rotary shaft, and 5
indicates a disk tilling blade, 6 indicates a reversing operating arm, 7 indicates an operating connecting rod, and 8 indicates a crank. In addition, the symbol T in the figure is the tractor or agricultural machine, H is the tiller lifting attachment, θ is the attachment angle of the rotary shaft to the transmission box, F is the forward direction, R is the backward direction, and f is the disk during forward work. The forward rotation direction of the tilling blade and r indicate the forward rotation direction of the tilling blade during backward movement, respectively.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A disc tilling blade is pivotally attached to a rotary shaft that can be driven by a transmission mechanism provided in a transmission box, and is supported by a pivot support connected to the side near the lower part of the transmission box. The vicinity of the base end of the rotary shaft is pivotally supported in a bearing box provided in the same manner, and the mounting angle of the rotary shaft relative to the core of the pivot is set at a nearly horizontal position of the rotary shaft. A reversing operation mechanism is provided for rotating the coaxial bearing box around the core of the pivot to perform a reversal operation, and the bearing box is rotated around the core of the pivot through the reversing operation mechanism. A reversible disk tillage device characterized in that the mounting angle of the rotary shaft can be reversibly set between a forward side and a backward side in the direction of work progress with respect to the base end position of the coaxial shaft. 2. A bearing box that supports the rotary shaft is supported by a pivot tool installed on the side near the lower part of the transmission box, and a reversing operation arm is connected to the outer circumference of the bearing box. One end is connected to the other end of the rod near the rotational end of the crank, and the base end of the crank is pivotally supported to the transmission box, and the crank, the operating connecting rod or the reversing operating arm are interlocked. By operating the rotary shaft together with the coaxial receiving box, the rotary shaft is rotated around the core of the pivot fixture, and the attachment angle of the rotary shaft relative to the core of the pivot fixture is adjusted relative to the base end position of the coaxial shaft in the direction of work progress. 2. The reversible disc tilling device according to claim 1, further comprising a reversing operation mechanism that can be reversibly set between the side and the retreating side. 3. The transmission mechanism is equipped with a reversing mechanism capable of reversibly switching the direction of rotational transmission,
2. The reversible disc tiller according to claim 1, wherein the rotation direction of the rotary shaft and the disc tilling blade can be reversibly switched via a reversing mechanism.