JPH069406U - Front cover of rotary tiller - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a ftunt cover of a rotary tiller capable of automatically switching the soil scattering prevention body depending on whether deep tillage or shallow tillage. [Structure] Firstly, a movable body 19 is movable relative to a movable body 19 which moves forward and backward integrally with the rear cover 18 along the upper surface of the main cover, near the vertical lower end of the soil scattering prevention body 24 hung vertically on the front portion of the main cover 16. Of the rotary cover K ′ is loosened when it is moved backward and is pulled when it is moved forward. Secondly, the entire rotary cover K ′ is cultivated claw shaft 11 ′.
For those that rotate around the
A portion of the earth scattering prevention member 24 vertically provided on the front portion of 6 ′ is loosened toward the rotary cover with respect to the rotary cover so as to be loosened when the rotary cover is rotated rearward and to be pulled when the rotary cover is forwarded through a linking device 25 ′ such as a wire. Worked together.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a front cover of a rotary tiller mounted behind a tractor.

[0002]

[Prior art]

 In order to prevent the splashing muddy soil caused by the rotary from scattering and adhering to the operator and the main parts of the machine, a soil scattering prevention body (mudguard cover) was attached to the front of the main cover. It is already known from the gazette and the like.

[0003]

[Problems to be solved by the device]

 However, since the conventional mudguard cover is manually attached and detached, there are problems that the operation is troublesome and the rotary performance cannot be fully exhibited due to forgetting the operation.

[0004]

[Means for Solving the Problems]

 The front cover of the rotary cultivator according to the present invention was devised to solve the above-mentioned problems. First, a front cover of a movable body mounted so as to be movable back and forth along the upper surface of the main cover. In a rotary cultivator equipped with a rotary cover in which a rear cover is pivotally rotatably pivoted in the rear part, a soil scattering prevention body is hung vertically on the front part of the main cover, and the side of the soil scattering prevention body near the drooping lower end is placed. A state of shallow plowing work in which the movable body is loosened when the movable body moves rearward and is linked through a linking tool such as a wire so as to be pulled when the movable body moves forward, and the rear cover is lowered by the backward movement of the movable body. In the construction posture, the soil scattering prevention body is switched to the working posture in which the soil scattering prevention body hangs down, and in the deep plowing work state in which the rear cover is raised by the forward movement of the movable body, the soil scattering prevention body is retracted upwards. Secondly, in a rotary cultivating device in which a rotary cover in which a rear cover is rotatably pivoted vertically on a rear portion of a main cover is configured to be rotatable in a front-rear direction around a cultivating pawl shaft. , A soil scattering prevention body is hung vertically on the front part of the main cover, and the side of the soil scattering prevention body near the vertical lower end is loosened when the rotary cover is rotated rearward and pulled when it is rotated forward. When the rear cover is lowered and the rear cover is lowered, the soil scatter preventive body hangs down when the rear cover is lowered, and when the rear cover is raised and the deep tillage work is performed, the soil scatter preventive body moves upward. The gist is that it is configured to switch to the retracted non-working posture.

[0005]

[Action]

 According to the present invention, at the time of ordinary tillage (deep tillage), only by raising the rear cover, the soil scattering preventive body retreats upwards to improve the soil removal to the front, and at the time of shallow tillage such as clearing, simply lower the rear cover. The anti-scattering body hangs down to prevent the soil from scattering forward. Therefore, the switching adjustment of the front cover is automatically performed according to the change of the working depth, so that the switching operation is not bothered or forgotten, and the rotary performance is always sufficiently exhibited.

[0006]

【Example】

 The structure of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a rotary cultivator which is connected to a rear side of a tractor (main unit) 2 through a top link 3 and a pair of left and right lower links 4 so as to be vertically movable. In a device (hereinafter also referred to as a rotary), power is introduced from the PTO shaft 5 of the machine 2 through the universal joint shaft 6 into the gear case 7, and then one of the pipes 8 and 8 extending to the left and right of the gear case 7 ( It is transmitted to a tilling claw shaft 11 having a tilling claw 10 via a power transmission pipe 8 and a chain case 9, and rotationally drives the tilling claw shaft 11 and the tilling claw 10. A tool bar 13 is pivotally connected to a bracket 12 fixed to the pipes 8 and 8, and the tool bar 13 can be vertically adjusted by an adjusting screw 15 which is pivotally supported on the top mast 14.

By the way, the rotary cover K for covering the tillage claw 10 includes a main cover 16, side covers 17 provided on both left and right sides of the main cover 16, and a rear cover 18 arranged behind the main cover 16, and the rear cover 18 is a main cover. It is pivotally connected to the rear part of a movable body 19 mounted so as to be movable back and forth along the upper surface of the cover 16 so as to be vertically rotatable. The movable body 19 has a U-shaped cross section that opens downward, is curved in an arc shape along the upper surface of the main cover 16, and has an inwardly protruding rib 19a fixed to the opening end side. The movable body 19 is supported while holding a plurality of guide rollers 20, 21 pivotally supported on the main cover 16 in the front-rear direction, and is guided by the guide rollers 20, 21 to move back and forth. There is. Reference numeral 22 is a transmission cylinder pivotally supported at one end to the top mast 14 and the other end to the widthwise intermediate portion of the pipe 23 fixed to the rear end of the movable body 19. The cylinder 22 is expanded and contracted when adjusting the working depth. By moving the movable body 19 back and forth along the upper surface of the main cover 17, the rear cover 18 suspended vertically from the pipe 23 is automatically moved up and down.

Reference numeral 24 denotes a soil scattering prevention body vertically provided on the front portion of the main cover 16. The side of the soil scattering prevention body 24 closer to the vertical lower end is loosened when the movable body 19 moves rearward relative to the movable body 19, It is linked through a linking tool 25 such as a wire so that it can be pulled during movement. 1 to 7, the soil scattering prevention member 24 made of a rubber plate is fixed to the front end portion of the main cover 16 by a bolt 26, and the hanging lower end side is clamped from both sides by a plate 27. 27 and the front part of the movable body 19 are linked by a linking tool 25 composed of an inner wire 25b of a push-pull wire. The outer wire 26a of the push-pull wire is curved in a U-shape toward the rear as shown in FIGS. 3 and 5, and one end of the outer wire 26a is attached to the upper surface of the main cover 16 near the fastening portion of the soil scattering prevention member 24, and the other end is attached. It is fixed to the upper surface of the intermediate portion of the main cover 16 in the front-rear width direction at outer lateral positions of the movable body 19 via outer stoppers 27 and 28, respectively.

As shown in FIGS. 8 and 9, the soil scattering prevention body 24 is made of an iron plate, and the structure for linking with the movable body 19 is the same as that described above.

As shown in FIGS. 10 to 15, a rotary cover K ′, which is formed by pivotally connecting a rear cover 18 ′ to a rear portion of a main cover 16 ′ so as to be vertically rotatable, is arranged in a front-rear direction about a plowing claw shaft 11 ′. The present invention is equipped with a rotary tiller which is configured to be rotatable. That is, the soil scattering prevention body 24 is vertically provided on the front portion of the main cover 16 ', and the side of the soil scattering prevention body 24 near the vertical lower end is loosened with respect to the rotary cover K'when the rotary cover K'rotates backward. , The rear cover 18 'is hung so that it can be pulled when it is rotated forward, and the rear cover 18' is in a suspended posture when the rear cover 18 'is lowered and the rear cover 18' is lowered. In the state of the deep plowing work performed by raising ', the soil scattering prevention body 24 is configured to switch to the non-acting posture retracted upward. In this structure, the raising and lowering means of the rear cover 18 'and the structure of the linking device 25' for shallow and deep plowing are substantially the same as those described above, but the main cover 16 'and the rear cover 18' have the plowing pawl shaft 11 '. Since the structure rotates about the center, the other end side of the inner wire 25'b and both outer wires 25'a are fixed to the upper surface of the main cover 16 '. Also in this structure, the soil scattering preventer 24 may be either a rubber plate or an iron plate.

In the above-described configuration, when performing normal rotary tillage (deep tillage) in field work or the like, when the transmission cylinder 22 is contracted and the movable body 19 is pulled forward, the movable body 19 moves to the guide roller 20, While moving along the upper surface of the main cover 16 while being guided by 21, the rear cover 18 rises accordingly, but the inner wire 25b is pulled by the forward movement of the movable body 19, so that the soil scattering prevention body 24 is It automatically retracts upward (when it is a rubber plate, it is rolled up, and when it is an iron plate, it is rotated upwards). For this reason, the front of the tilling pawl 10 is largely opened following the rise (deep tillage) of the rear cover 18 without removing the soil scattering prevention body 24, so that the soil is well removed and the rotary performance is kept good.

In addition, when scraping in paddy fields, etc., the work is performed in a shallow plowing posture with the rear cover 18 lowered. In this case, when the transmission cylinder 22 is extended, the movable body 19 moves backward, contrary to the above. Then, the rear cover 18 descends. Therefore, the inner wire 25b is loosened, and the soil scattering prevention body 24 hangs by its own weight. For this reason, since the mud that has been flipped up by the tiller 10 is received by the mud scatter preventer 24, it is possible that the mud may be poured onto the operator from behind or the mud may be scattered and adhered to the main parts of the machine such as the universal joint shaft. To be prevented.

In the case where the main cover 16 ′ and the rear cover 18 ′ are integrally pivoted, the soil scattering prevention member 24 has a non-working posture in which it is retracted upward in association with the rotation of the rotary cover K ′ in the same manner as described above. , It automatically switches to the downward acting posture.

[0014]

[Effect of device]

 Since the present invention is configured as described above, only the rear cover is lifted during ordinary tillage (deep tillage), the soil scattering prevention body retracts upward, and the soil is well drained forward. The soil scattering prevention body droops only by lowering to prevent soil scattering to the front. Therefore, the switching adjustment of the front cover is automatically performed according to the change of the working depth, so that there is no need to bother and forget the switching operation, and the rotary performance can be sufficiently exerted at all times.

[Brief description of drawings]

FIG. 1 is a side view of a rotary cultivating apparatus showing a state of a soil scattering prevention body at the time of deep plowing.

FIG. 2 is an exploded perspective view showing a relationship between a main cover, a movable body, and a rear cover.

FIG. 3 is a plan view showing a state of a main part during deep plowing.

FIG. 4 is a side view of the rotary cultivating apparatus showing a state of the soil scattering prevention body at the time of shallow tillage.

FIG. 5 is a plan view showing a state of a main part at the time of shallow plowing.

FIG. 6 is an enlarged side view of a main part during deep plowing.

FIG. 7 is an enlarged side view of a main part at the time of shallow plowing.

FIG. 8 is a side view of the rotary cultivating device showing a state of the iron plate soil scattering preventer during deep tillage.

FIG. 9 is a side view of the rotary cultivating device showing a state of the iron plate soil scattering preventing body at the time of shallow plowing.

FIG. 10 is a side view showing a state of a soil scattering prevention body at the time of deep plowing of a rotary cover-integrated rotary type rotary tiller.

11 is a plan view of a main part in FIG.

FIG. 12 is a side view showing a state of a soil scattering prevention body at the time of shallow tilling of the rotary cover-integrated rotary type tiller.

FIG. 13 is a plan view of a main part in FIG.

FIG. 14 is a side view showing a state of an iron plate soil scattering prevention body mounted on a rotary cover-integrated rotary rotary tiller when deep plowing.

FIG. 15 is a side view showing a state in which a soil-scattering preventive body made of an iron plate, which is mounted on a rotary cover-integrated rotary-type rotary cultivating device, is being shallowly cultivated.

[Explanation of symbols]

 1 Rotary Tilling Device 10 Tilling Claw 11 Tilling Claw Shaft 11 'Tilling Claw Shaft 16 Main Cover 16' Main Cover 18 Rear Cover 18 'Rear Cover 19 Movable Body 22 Transmission Cylinder 24 Scattering Prevention Body 25 Wire Coupling Equipment 25' Wire etc. Coupling tool K Rotary cover K'Rotary cover

Claims (2)

[Scope of utility model registration request] 1. A rotary cultivating apparatus comprising a rotary cover, which is pivotally connected to a rear portion of a movable body mounted so as to be movable back and forth along an upper surface of a main cover so as to be rotatable up and down, and a front portion of the main cover. A soil scattering prevention body is hung vertically on the movable body, and the side of the soil scattering prevention body closer to the hanging lower end is loosened when the movable body is moved backward and pulled when the movable body is moved forward through a linking tool such as a wire. In a shallow plowing work state in which the movable body is moved backward to lower the rear cover, the soil scattering prevention body is in a suspended posture, and the movable body is moved forward to raise the rear cover to prevent soil scattering in the deep plowing work state. A front cover for a rotary tiller, characterized in that the body is configured to switch to a non-working posture in which the body retracts upward. 2. A rotary cultivating device comprising a rear cover rotatably connected to a rear portion of a main cover in a vertically rotatable manner so as to be rotatable in a front-rear direction about a cultivating claw shaft. A dust scattering prevention member is vertically provided on the portion, and a side of the dust scattering prevention member closer to the hanging lower end is loosened when the rotary cover is rotated rearward and pulled when the rotary cover is rotated backward with respect to the rotary cover. When the rear cover is lowered and the rear cover is lowered, the soil scattering prevention body hangs in the working posture in the state of shallow plowing work, and in the deep plowing work state in which the rear cover is raised, the soil scattering prevention body is retracted to the non-working posture. A front cover of a rotary cultivating device, which is configured to be switched to.