JPH054U - Rotary cover device - Google Patents

Abstract

(57) [Summary] [Purpose] To make it easier to assemble the rear cover part when installing the extension cover. [Structure] Rotary tillage part 6 Notches 21 are provided on both sides of a rear end of a rear cover 18 arranged at the rear, and a rear cover is provided.
In a rotary cover device in which an extension cover 22 projecting outward from the rear cover 18 is detachably provided above the notch 21 of the 18, an auxiliary cover 23 that blocks the rear of the extension cover 22 and the notch 21 is detachable. It is provided freely.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotary cover device for a rotary tiller.

[0002]

[Prior Art]

 In the rotary tiller, as shown in FIG. 8, cutouts 52 are provided on both sides of the rear end of a rear cover 51 arranged behind the rotary tillage, and an auxiliary cover 53 for closing the cutout 52 is provided on the rear cover 51. When using the single cultivator or when using the gauge wheel within the working width, remove the auxiliary cover 53 and place these in the cutout 52. Also, there is one in which an extension cover 54 protruding outward from the rear cover 51 is detachably attached above the notch 52 of the rear cover 51.In the past, when the extension cover 54 was attached, The auxiliary cover 53 is attached to the outside corresponding to the extension cover 54, and the gap 55 formed between the rear cover 51 and the auxiliary cover 53 is closed by the extension auxiliary cover 56.

[0003]

[Problems to be solved by the device]

 Therefore, conventionally, when attaching the extension cover 54 to the rear cover 51, it is necessary to attach both the auxiliary cover 53 and the extension auxiliary cover 56 together with the extension cover 54 to the rear cover 51. It was very troublesome. SUMMARY OF THE INVENTION In view of the above problems, the present invention makes it possible to more easily assemble the rear cover portion when attaching the extension cover.

[0004]

[Means for Solving the Problems]

 The technical means of the present invention for solving this technical problem is that notches 21 are provided on both sides of the rear end of the rear cover 18 arranged at the rear of the rotary tiller 6 and the notch 21 of the rear cover 18 is provided. In a rotary cover device in which an extension cover 22 projecting outward from the rear cover 18 is detachably provided on the upper side, an auxiliary cover 23 that blocks the rear portion of the extension cover 22 and the cutout portion 21 is detachably provided. There is a point.

[0005]

[Action]

 When the extension cover 22 is attached to the rear cover 18, the auxiliary cover 23 may be attached to the rear cover 18 in addition to the extension cover 22, and the rear cover and the cutout portion 21 of the extension cover 22 can be closed by the auxiliary cover 23.

[0006]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 illustrates a two-point link type rotary device. In FIG. 3, reference numeral 1 is a tractor. A rotary cultivator 3 is attached to the rear of the tractor 1 via a two-point link mechanism 2 and is moved up and down by a hydraulic device 4. The rotary tiller 3 comprises a rotary machine frame 5, a rotary tiller 6, a rotary cover 7, and the like. A gauge support frame 8 is projected from the upper part of the rotary machine frame 5 to the rear, and a pair of left and right gauge wheels 11 is mounted on a horizontal rod 9 installed at the rear end of the gauge support frame 8 via a tubular body 10 and the like. Installed. The rotary cover 7 covers the rotary tillage part 6, and includes an upper cover 16 fixed to the rotary machine frame 5, a rear cover 18 pivotally attached to the rear end of the upper cover 16 by a pivot 17, and a left-right pair. And the side cover 19 of the.

1 and 2, notches 21 are formed on both sides of the rear end of the rear cover 18, and an extension cover 22 protruding outward from the rear cover 18 is formed above the notch 21 of the rear cover 18. The rear cover 18 is removably provided with an auxiliary cover 23 that removably closes the rear portion of the extension cover 22 and the notch 21. That is, a pair of left and right pivotally supporting members 25 having pivots 17 are provided on both sides of the rear end of the upper cover 16, and a cylinder 27 is fixed to the upper end of the rear cover 18 as shown in FIGS. 4 and 5. The rear cover 18 is rotatably supported around the pivot member 17 between the pivot members 25 by fitting the pivot shafts 17 of the pivot members 25 into both ends of the tubular body 27. A blocking member 29 is provided between the one pivot member 25 and the upper end of the rear cover 18 so as to close the gap therebetween, and the blocking member 29 is removed to attach the rear cover 18 to one side. The cylinder 27 of the rear cover 18 can be disengaged from the pivot 17 of the other pivot member 25 by moving it to the pivot member 25 side, whereby the rear cover 18 can be removed from between the pivot members 25. You can do it.

Further, as shown in FIG. 5, the extension cover 22, the rear cover 18, and the closing member 29 are fixedly fastened to each other by bolts and nuts 31. In addition, the extension cover 22 and the rear cover 18 are detachably fastened and fixed by the bolt nuts 32 and 33, and the auxiliary cover 23 and the extension cover 22 are detachably fastened and fixed by the bolt nut 34. The rear cover 18 and the auxiliary cover 23 are detachably tightened and fixed by the nut 35.

A tubular portion 37 formed by bending the plate material is formed at the rear end portion of the auxiliary cover 23, and a cylindrical support shaft 38 is projected inward in the left-right direction in the tubular portion 37. It is fixedly fitted inside. The support shaft 38 is fitted into a support cylinder 39 provided in the cylindrical portion 37 of the rear cover 18 so as to be rotatable about its axis, so that the rear end of the auxiliary cover 23 is located behind the rear cover 18. It is detachably attached to the end portion and pivotally supported around a support shaft 38 in the left-right direction.

In FIG. 6, the rotary tiller 3 includes a support arm 41, a side frame 42, a bearing case 43 and a pawl shaft 44, and the pawl shaft 44 is rotatably mounted on the bearing case 43 via a bearing. The claw shaft 44 is pivotally supported, and the pawl shaft 44 is rotatably driven around the horizontal axis center through a transmission shaft in the support arm 41, a winding transmission body such as a chain in the side frame 42, and the like. A seal cap 45 is provided on the outer side of the bearing case 43, and a protective cover 46 is provided on the outer side of the bearing case 43. The protective cover 46 is fastened together with the bearing case 43 to the side frame 42 with bolts 47. Therefore, the protection cover 43 can effectively protect the seal cap 45 from being worn or dropped by hitting or contacting the concrete ridge of the paddy field during the work.

When removing the extension cover 22 from the rear cover 18, it is sufficient to remove the auxiliary cover 23 together with the extension cover 22. In this case, when it is necessary to close the notch 21 of the rear cover 18, FIG. As shown in FIG. 3, an auxiliary cover 49 different from the auxiliary cover 23 is provided, and is detachably tightened and fixed to the rear cover 18 by a bolt nut 35 or the like.

[0012]

[Effect of the device]

 According to the present invention, the auxiliary cover 23 that covers the rear of the extension cover 22 and the notch 21 is detachably provided, so that when the extension cover 22 is attached to the rear cover 18, the auxiliary cover 23 is not attached to the rear cover 18. Therefore, only the auxiliary cover 23 needs to be attached together with the extension cover 22, the number of parts when attaching the extension cover 22 is small, and the rear cover 18 part can be easily assembled, and its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is a rear view of a rear cover showing an embodiment of the present invention.

FIG. 2 is a side view of a rear cover.

FIG. 3 is a side view of a rotary device.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

FIG. 6 is a rear view of the rotary device.

FIG. 7 is a rear view of the rear cover with the extension cover removed.

FIG. 8 is a rear view of a rear cover showing a conventional example.

[Explanation of symbols]

 6 Rotary tillage 18 Rear cover 21 Notch 22 Extension cover 23 Auxiliary cover

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Koei Tsujino 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd.

Claims (1)

[Claims for utility model registration] [Claim 1] Notches (21) are provided on both sides of the rear end of the rotary tiller (6) rear cover (18),
A rotary cover device in which an extension cover (22) protruding outward from the rear cover (18) is detachably provided above the notch (21) of the rear cover (18), the extension cover (22)
A rotary cover device, characterized in that an auxiliary cover (23) for closing the rear part and the notch (21) is detachably provided.