JPH05308802A - Raking unit in rotary cultivator - Google Patents

Abstract

(57) [Summary] [Structure] The reiki member 4 is attached to the lower rear part of the rear cover 3 which covers the rear of the tillage part 2. Support arms 5 are fixed to the left and right ends of the reiki member 4 in a protruding manner, and a receiving member 6 is provided on the upper rear upper surface of the rear cover 3 for holding the reiki member 4 in a ground leveling posture A by contacting the support arm 5. The support member 5 for the support arm 5
An elastic pressure member 7 for elastically compressing the reiki member 4 is provided between the receiving member 6 and the elastic force member 7 so that the reiki member 4 can be rotated upward from the leveling action posture A between the receiving member 6 and the elastic pressure member 7. Evacuation holding means 8 for holding the reiki member 4 in a rotated position is provided. [Effect] The reiki member 4 can be kept in the upper retracted posture B without removing bolts and the like when the ground is not required, and the change work between use and non-use can be performed easily and lightly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reiki device for a rotary cultivator, which adjusts ground simultaneously with tillage.

[0002]

2. Description of the Related Art A rotary cultivator covers an upper part of a cultivating part with an upper cover and a rear part of the cultivating part with a rear cover pivotally supported at a rear end of the upper cover. A reiki device for embedding and adjusting the soil is arranged, and the reiki device is configured by detachably attaching a reiki member to the upper surface of the lower rear portion of the rear cover via bolts.

[0003]

In the reiki device of the prior art described above, the bolts must be loosened to remove the reiki member from the rear cover when ground leveling is not necessary, and the attaching and detaching work is very troublesome and heavy work. ing. SUMMARY OF THE INVENTION It is an object of the present invention to provide a reiki device for a rotary cultivator in which a reiki member attached to a rear cover can be rotated upward from a ground leveling posture and retracted.

[0004]

A concrete means for solving the problems in the present invention is a reiki device for a rotary cultivator in which a reiki member 4 is attached to a lower rear portion of a rear cover 3 which covers the rear of the cultivating part 2, Support arms 5 are fixed to the left and right ends of the reiki member 4 in a protruding manner, and a receiving member 6 is provided on the upper rear upper surface of the rear cover 3 for holding the reiki member 4 in a ground leveling posture A by contacting the support arm 5. An elastic pressure member 7 for elastically pressing the support arm 5 to the receiving member 6, and the supporting arm 5 receiving member 6
The reiki member 4 can be rotated upward from the ground leveling posture A while resisting the elastic member 7 between the elastic member 7 and the elastic member 7, and the retreat holding means 8 for holding the reiki member 4 at the rotated position is provided. It is that you are.

[0005]

The supporting arms 5 at both the left and right ends of the reiki member 4 are bulged, and they are elastically pressed so as to come into contact with the fixed receiving member 6 on the upper rear lower surface of the rear cover 3 and with the elastic pressing member 7. In this state, the reiki member 4 is in the leveling action posture A and is held so as not to rotate only by the leveling action resistance.

When the supporting arm 5 is artificially rotated upward, it can be rotated between the receiving member 6 and the elastic member 7 against the elastic member 7 and the attitude from the ground leveling attitude A to the upper retracted attitude B is achieved. Be changed. In this upper retracted posture B, the retracted holding means 8 acts to hold the rotated position of the reiki member 4.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, reference numeral 11 denotes a rotary cultivator mounted on a tractor via a three-point link mechanism. In this rotary cultivator 11, a support arm 13 is projected from the gear case 12 to the left and right, and a transmission case 14 and a side frame 15 are attached to the left and right of the support arm 13 to form a rotary machine frame 16.

A pawl shaft 17 is rotatably supported between the lower ends of the transmission case 14 and the side frame 15 of the rotary machine frame 16, and a large number of plowing pawls 18 are attached to the pawl shaft 17 to form the cultivating section 2. Is composed of. Reference numeral 21 denotes a rotary cover for covering the cultivating part 2, an upper cover 22 attached to the rotary machine frame 16, a rear cover 3 pivotally supported at the rear end of the upper cover 22 via a pivot shaft 23, and left and right side parts. The reiki device 1 is provided with a cover 24, and the reiki member 4 is provided below the rear cover 20 so as to be capable of changing its posture between a ground leveling posture A and an upper retracted posture B.

A power intake shaft projects from the gear case 12 so that it can be interlocked with the PTO shaft of the tractor through a universal joint. From this power intake shaft, the gear transmission mechanism in the gear case 12 and the support arm 13 are connected. Power is transmitted to the pawl shaft 17 via the internal transmission shaft and the power transmission means in the transmission case 14. Reference numeral 26 is a top mast connected to the top link 27, 28 is an auxiliary mast connecting the rear end of the top mast 26 and the upper cover 22, 29 is a lower link bracket fixed to the left and right support arms 13, and 30 is a lower link bracket. The lower end of 29 is a lower link pin to which a lower link 31 can be connected, and 32 is a front gauge wheel.

The lower portion of the rear portion of the rear cover 3 is formed by bending a sheet metal into a cylindrical shape, and the reiki device 1 is attached to the upper surface of the lower portion of the rear portion. This reiki device 1 has one or a plurality of reiki members 4 divided in the left-right direction (cultivation width direction), and this reiki member 4 performs a leveling operation. The Reiki member 4 has a mounting base 35 bent into a substantially C-shaped cross section, and a large number of Reiki rods 36 formed by bending one rod into a V-shape at the center. The pressing plate 37 is inserted into the hole 35a of the mounting base 35 from the front end side, the pressing plate 37 is brought into contact with the V-shaped bent portion from the lower side, and the pressing plate 37 is fixed to the mounting base 35 by the bolt 38. The bolt 36 is prevented from coming off by a bolt 38, and is prevented from rotating by a rising portion 37a of a pressing plate 37.

Support arms 5 formed in the shape of an angular shaft are provided at both left and right ends of the mount 35 in a protruding manner. The support arms 5 are received by a receiving member 6 fixed to the upper rear lower surface of the rear cover 3. I have it. The receiving member 6 is for attaching the left and right ends of the reiki member 4, and is bent so as to form a U-shaped portion in a side view that is open in the vertical direction, and the central wall 6a has a support wall 5a. The reiki member 4 can be positioned in the leveling action posture A by the surface contact.

An elastic member 7 formed of a pin with a head is inserted through the front wall 6b of the receiving member 6 so as to be slidable in the axial direction.
The elastic member 7 is elastically pressed to the side of the central wall 6a by the spring 40 and abuts against the support arm 5 of the reiki member 4 in the leveling action posture A to elastically press it to the side of the central wall 6a.
Reference numeral 41 denotes a retaining plate of the support arm 5, which has a thin front end and is engaged with a hole 42 formed in the front wall 6b of the receiving member 6,
The rear portion is detachably attached to the rear portion of the receiving member 6 via the bolt 43.

When the reiki member 4 is in the leveling action posture A shown by solid lines in FIGS. 1 and 2, the support arm 5 is elastically sandwiched between the central wall 6a of the receiving member 6 and the elastic pressure member 7, and the cultivating trace While arranging the soil, embed foreign matters such as straw to cultivate the soil.
At this time, when a large resistance is applied to the rake member 4, the rake member 4 rotates so as to escape upward, but the rear end does not move above the rear lower end of the rear cover 3, and the elastic pressure is exerted by such a rotation. The original leveling action posture A is restored by the elastic force of the member 7. That is, the Reiki member 4 is elastically supported by a constant pressure load.

On the other hand, when the reiki member 4 is artificially rotated against the elastic pressure member 7 and moved to the position shown by the solid line in FIG. 3, the reiki rod 36 comes into contact with the front wall 6b and the supporting arm is formed. 5
One corner of the elastic member 7 that comes into contact with the elastic member 7 is below the angle of the diagonally contacting center wall 6a, and the elastic force of the elastic member 7 does not return to the leveling action posture A, and is held in that state. It will be.

The posture of the reiki member 4 in this state is the upper retracted posture B, and the retreat for holding the reiki member 4 in the upper retracted posture B by the corners of the support arm 5, the contact surfaces of the receiving member 6 and the elastic member 7, and the like. The holding means 8 is configured. However, as the retracting and holding means 8, a hook that engages with the reiki member 4 may be provided on the rear cover 3. Further, the reiki member 4 may be configured by using one strip plate whose rear portion is formed in a comb tooth shape and welding the support arms 5 to the left and right ends of the front portion thereof.

1, 5, and 6 show the pivotal support structure of the upper cover 22 and the rear cover 3. Top cover 22
The upper plate 22A and the lower plate 22B along the tilling part 2 are attached to each other, and the reinforcing member 46 extending across the entire width in the left-right direction at the rear part between them.
And the side plates 47 are fixed to the left and right side ends thereof. A front upper portion of the rear cover 3 is curved in a round shape, and a pivot shaft 23 is fixed to the curved portion 3a, and the length of the pivot shaft 23 is longer than the distance between the left and right side plates 47,
It is pivotally supported by the left and right side plates 47 via bushes 48.
Reference numeral 49 denotes a lock fitting fixed to the rear cover 3 by a bolt, and has a curved tip and is fitted to the pivot shaft 23 between the curved portion 3a and the bush 48 to fix the position of the rear cover 3 in the left-right direction. Regulated.

That is, when the lock fitting 49 is removed, the rear cover 3 can be moved left and right by the width of the lock fitting 49, and by utilizing this, both ends of the pivot shaft 23 are alternately arranged on the side plates 4.
7 can be inserted. Curved portion 3a of the rear cover 3
Has a notch at a plurality of locations in the width direction or at one location in the center, the pivot shaft 23 is exposed, and the receiving metal fittings 50 are arranged correspondingly. The receiving fitting 50 is detachably attached to the back surface of the reinforcing member 46 via a bolt, has a hook-shaped tip, and is capable of engaging with and supporting the pivot shaft 23.

The rear cover 3 can be easily attached to and detached from the upper cover 22 by attaching and detaching the lock fitting 49 and the receiving fitting 50. In FIG. 6, the rear cover 3 protrudes from the side plate 47 by the width of the transmission case 14, and the side cover 24 is also positioned outward by the width of the transmission case 14, so that the tiller 2 is scattered. Cultivated soil transmission case 14
It can also be supplied to the back of.

The upper portion of the side cover 24 enters the inside of the side plate 47 and overlaps with each other, but is bent outwardly below the side plate 47. The transmission case 14 has a drain plug 51 in the lower part of the plane, and the side cover 24 also covers the drain plug 51. Therefore, the side cover 24 can be operated without removing the side cover 24. An opening 52 is formed in the opening 52, and a lid 53 is provided so that soil does not scatter from the opening 52.

[0020]

According to the present invention described in detail above, the support arms 5 are fixed to the left and right ends of the reiki member 4 in an overhanging manner, and the upper surface of the rear lower part of the rear cover 3 is in contact with the support arms 5 to make a reiki. Member 4
A supporting member 5 for holding the supporting arm 5 in the leveling action posture A, and an elastic pressure member 7 for elastically pressing the supporting arm 5 to the receiving member 6, and the elastic member 7 is provided between the receiving member 6 and the elastic member 7. Since the reiki member 4 can be rotated upward from the ground leveling action posture A while resisting, and the retreat holding means 8 for holding the reiki member 4 in the rotated position is provided, the reiki member 4 can be bolted when the ground leveling is not necessary. It is possible to keep the upper retracted posture B without removing it, and the change work between use and non-use can be performed easily and lightly.

[Brief description of drawings]

FIG. 1 is an overall sectional side view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional side view of the reiki device in the same ground leveling posture.

FIG. 3 is a sectional side view of the reiki device in the same upper retracted posture.

FIG. 4 is a partial cross-sectional plan view of the same Reiki device.

FIG. 5 is a cross-sectional side view of the pivotal structure of the rear cover.

FIG. 6 is a partial cross-sectional plan view of the pivotal support structure of the rear cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reiki device 2 Tillage part 3 Rear cover 4 Reiki member 5 Support arm 6 Receiving member 7 Resilient member 8 Retracting and holding means 11 Rotary cultivator 22 Upper cover 23 Pivot axis A Ground leveling posture B Upward retracting posture

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Sugawara 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Factory

Claims (1)

[Claims] 1. A reiki device for a rotary cultivator, wherein a reiki member (4) is attached to a rear lower portion of a rear cover (3) covering the rear of the tiller (2), the reiki device being supported at both left and right ends of the reiki member (4). A receiving member (6) for fixing the arm (5) in an overhanging manner and for contacting the support arm (5) with the upper surface of the rear lower part of the rear cover (3) to hold the reiki member (4) in the leveling action posture A. And an elastic member (7) for elastically pressing the support arm (5) to the receiving member (6), and an elastic member (7) between the receiving member (6) and the elastic member (7). The reiki member (4) can be rotated upward from the leveling action posture (A) while resisting 7), and the retreat holding means (8) for holding the reiki member (4) at the rotated position is provided. Reiki device for rotary cultivator characterized by