JPH0580202U - Rear cover of rotary tiller - Google Patents

Abstract

(57) [Summary] [Purpose] The notch of the rear cover for mounting the ridger is provided with a closing plate that closes the notch when the ridger is not working. [Structure] An upper part of a rotary tillage part is covered with a rotary cover 5, a rear cover 8 is attached to a rear part of the rotary cover 5, and a notch part 26 for interposing a ridger 18 is provided at an intermediate part of the rear cover 8, and the notch is provided. In the rotary cultivator in which the ridger 18 is fitted and attached to the portion 26, a closing plate 11 for covering the cutout portion 26 of the rear cover 8 is provided, and an upper end portion of the closing plate 11 is cutout for the rear cover 8. A fixture is provided which is pivotally mounted above the portion 26 and which is fixed at the position where the notch 26 is covered by the closing plate 11 and the position where the notch 26 is opened by pivoting and retracting above the rear cover 8. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rear cover of a rotary cultivator to which a ridger can be attached.

[0002]

[Prior Art]

 Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 63-71603, a triangular notch in plan view is provided in the center of a rear cover attached to the rear of a rotary cover, and a pair of left and right closures are provided on both sides of the notch. It is already known that when a plate is hinged and the ridge work is performed, the closing plate is opened to the left and right and the ridger inserted into the lower part of the cutout is attached to the tool bar.

[0003]

[Problems to be solved by the device]

 The closing plate of the rear cover of the known rotary cultivator is divided in the left-right direction and is fixed by hinges at the left and right of the cutout.When the closing plate is closed, the left and right closing plates are hinged at the center. Since the bolts were connected and fixed, when the ridger was removed and the closing plate was closed and the rear cover was in series with the rear cover, the left and right closing plates were connected by the pressure of the soil thrown by the tilling claws ( There was a problem that the surface of the fine soil after cultivating was not flat because the flange) was deformed.

[0004]

[Means for Solving the Problems]

 Therefore, the present invention is intended to solve the above-mentioned problem, in which the upper part of the rotary tillage part is covered with a rotary cover, the rear cover is attached to the rear part of the rotary cover, and the rear cover is attached to the middle part of the rear cover. In a rotary cultivator in which a notch for interposing a ridge is provided, and the ridge is fitted and mounted in the notch, a closing plate for covering the notch of the rear cover is provided, and the closing plate is provided. The upper end of the rear cover is pivotally mounted above the cutout portion of the rear cover, and is fixed at a position where the cutout portion is covered by the closing plate and a position where the cutout portion is opened by retreating above the rear cover. It is equipped with tools.

[0005]

[Action]

 When performing the ridge work, as shown in Fig. 1, the notch is opened by fixing the closing plate in a position in which it is pivoted and retracted upward by a fixing tool, and the ridger is fitted into the notch. Let me attach it to the toolbar. On the other hand, when performing normal plowing, as shown in Fig. 2, the plunge is fixed at the position where the notch is closed by the closing plate. Then, the soil cultivated by the tillage part is received and accumulated by the rotary cover, the rear cover and the closing plate, and the rear cover and the closing plate level the surface of the fine soil.

[0006]

【Example】

 The structure of the present invention will be described with reference to the embodiment shown in FIGS. The rotary tiller 1 is connected to a tractor or other towing vehicle, and the input shaft 2 is driven by a PTO shaft such as a tractor. The lower tiller has a tiller claw 3 attached to it. The rotary cover 5 covers the upper surface of the rotation path, and the tool bars 6 are fixed to the rear ends of the left and right arms whose front ends are pivotally supported by the cylindrical frames 4a and 4a extending from the gear case 4 to both sides. The connecting portion is hung by a control rod 7 with a handle 7a so that it can be tilted up and down, and a rear cover 8 is hinged to the rear portion of the rotary cover 5 so as to be vertically rotatable. The possible pressure rods 9, 9 are movably supported by arms 10, 10 protruding rearward from the tool bar 6.

The central portion of the rear cover 8 in the left-right direction is cut out in a substantially triangular shape in a plan view, and a substantially triangular closing plate 11 is provided on the rear cover 8 at a position corresponding to the cutout portion 26. It is pivotally attached above the notch 26 and is configured to be rotatable in the vertical direction. The closing plate 11 is fixed at a position where the notch 26 is covered and a position where the notch 26 is opened by pivoting and retracting above the rear cover 8 as described below. That is, the rear cover 8 is provided with brackets 13a, 13b, 16a, 16b having holes, while the closing plate 11 is provided with brackets 13c, 13d having holes, and the pin member 14a having a bent base end, 14b is biased by springs 15a and 15b so that it can be slid sideways. The closing plate 11 is fixed by inserting the pins 14a and 14b into the holes of the brackets 16a and 16b at the position rotated upward as shown in FIG. 1, and the notch 26 is provided as shown in FIG. In the closed position, the pins 14a, 14b are fixed by fitting them into the holes of the brackets 13c, 13a, 13d, 13b. The fixture may be configured by using a magnet.

Reference numeral 18 denotes a ridger, which comprises a blade plate 19, a split plate 20 whose rear portion is expanded, and a fastening bolt 21 and a telescopic rod 22 which are connected to the rear ends on both sides of the blade. It is composed of a cultivating plate 23, 23 of which the width can be expanded / contracted and adjusted, and a supporting column 25 erected on the blade plate 19 so that the front-back angle can be adjusted by an adjusting handle is attached to the tool bar 6 so that it can be adjusted vertically. is there.

When the rear cover 8 is of a double-folded type, the notch 26 is provided on the lower cover.

When performing the usual tilling work in the above-mentioned tiller, the closing plate 11 is fixed at the closed position as shown in FIG. 2 without attaching the upright device 18, and the rear cover 8 and the rear cover 8 are closed. The plate 11 is made into a series, and the soil thrown up by the plowing claw 3 is received and leveled by the rear cover 8 and the closing plate 11.

When performing the ridge-raising work, as shown in FIG. 1, the closing plate 11 is rotated upward to fix the cutout portion 26 at the open position, and the ridge standing device 18 is attached from the rear side. It is inserted below the notch 26 and attached to the toolbar 6. In this state, the rake plate 20 of the ridger 18 can be mounted sufficiently close to the rotation trajectory of the tiller 3, and the soil scraped up by the tiller 3 will fall on the rake plate 20. It flows down while being divided into right and left, and is further guided by the surface of the plate 20 and pushed up by the cultivation soil plates 23, 23 to level the tops of the soil raised on both sides.

[0012]

[Effect of the device]

 As described above, according to the present invention, the upper part of the rotary tillage part is covered with the rotary cover, the rear cover is attached to the rear part of the rotary cover, and the notch part for interposing the ridger is provided at the intermediate part of the rear cover. In a rotary cultivator in which a ridger is fitted and mounted, a closing plate that covers the cutout portion of the rear cover is provided, and an upper end portion of the closing plate is pivotally mounted above the cutout portion of the rear cover. At the same time, a fixing tool is provided for fixing the cutout portion with the closing plate and the position where the cutout portion is opened by pivoting and retreating above the rear cover. The position where the notch is covered and the position where the notch is covered by pivoting and retracting above the rear cover to open the notch and switch to the position where the ridge can be mounted can be firmly supported at the position where the notch is covered. Because it can be done, the closing plate Unlike the conventional left and right split type, it does not deform due to the pressure of the soil cultivated with the plowing claws, and it has a very practical effect that the surface of fine soil can be finished evenly. Is.

[Brief description of drawings]

FIG. 1 is a rear view in which a notch portion is formed in a rear cover.

FIG. 2 is a rear view in which a rear cover is closed by a closing plate.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 is a plan view of an example in which a flat plate is attached to a cutout portion of a rear cover.

FIG. 6 is an enlarged view of a main part of FIG.

FIG. 7 is an enlarged view of a main part of FIG.

FIG. 8 is a side view showing a ridged state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotary tiller 8 rear cover 11 closing plate 14a pin member 14b pin member 16a bracket 16b bracket 18 ridger 26 notch

Claims (1)

[Scope of utility model registration request] 1. An upper part of a rotary tillage part is covered with a rotary cover, a rear cover is attached to a rear part of the rotary cover, and a notch for interposing a ridger is provided at an intermediate part of the rear cover, and the notch is provided with a ridge. In a rotary cultivator adapted to be fitted and mounted with a vessel, a closing plate for covering a cutout portion of the rear cover is provided, and an upper end portion of the closing plate is pivotally mounted above the cutout portion of the rear cover, and the closing plate is provided. 2. A rear cover for a rotary cultivator, characterized in that a fixing tool is provided for fixing the cutout portion at a position where the cutout portion is covered and the position where the cutout portion is opened by pivoting and retracting above the rear cover.