JP2002045018A - Residual stem treating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem of the difficulty in using a residual stem treating apparatus continuously for a long period of time owing to the clogging of the lower part of a cutting apparatus with the crop stem and the second leaf grown under the crop stem in the case of cutting the crop stem planted on the ground with a residual stem cutting apparatus attached to the front part of a mobile farm machine. SOLUTION: The cutting apparatus 4 is provided with rotary blades 2, 2... attached to a vertical rotary shaft 1 in axial direction in plural stages interposing a definite spacing and receiving blades 3, 3... positioned opposite to the rotary blades 2, 2.... The outer circumference of the cutting apparatus 4 is surrounded by a cover 6 to form an opening 5 at the front part. In the residual stem treating apparatus 7 having the above structure, the lowermost cutting part 8 of the cutting apparatus 4 is provided with a rejection plate 9 above the rotary blade 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a stem processing apparatus for cutting stems such as tobacco and plants.

[0002]

2. Description of the Related Art A conventional trunk cutting apparatus for tobacco and the like is disclosed in Japanese Patent Application Laid-Open No. H11-155305 and Japanese Patent Application Laid-Open No. H11-187744.
There is one shown in Japanese Patent Application Laid-Open Publication No. H10-210, which is configured as follows.
In other words, the remaining trunk standing upright on the ground surface is firstly pulled out by a pulling machine such as a holding belt attached to the fuselage over a long range extending from the front to the side of the fuselage, or a pulling trill or a rotary blade. After that, it was transported to a cutting machine at the rear of the machine and cut into short lengths, and the cut remaining stem was stored in a storage container.

[0003]

The conventional apparatus is constructed as described above, and is provided with a trunk extraction device from the front of the tractor to the side of the tractor and a cutting machine at the rear of the tractor. The overall length of the vehicle becomes longer and the body width becomes wider, which makes the driving operation troublesome. In addition, when the container for storing the cut stem is small, the efficiency of the remaining stem processing work is poor, such as replacing the container many times or disposing of the stem in another place.

[0004] Further, if the remaining stem is left in a state of being torn off even after harvesting the leaves of tobacco or the like, the second leaves grow thick around the root of the remaining stem, and when the remaining stem is cut in the vertical direction, the remaining stem is left. Truncated stems and second leaves that fall to the lower part of the processing equipment accumulate,
The driving resistance of the trunk processing apparatus increases, and continuous work becomes difficult.

[0005]

SUMMARY OF THE INVENTION The present invention is to solve such a problem of the conventional device, and has taken the following technical means. That is, according to the first aspect of the present invention, the rotating blades 2, 2,... Provided at a plurality of stages on the vertical rotating shaft 1 at appropriate intervals in the axial direction are provided. . , Receiving blades 3 and 3 facing the rotary blade 2 respectively. . A cutting device 4 having a cutting device 4 that surrounds the outer periphery of the cutting device 4 with a cover 6 so as to form an opening 5 in front of the cutting device 4. Is a configuration of a remnant stem treatment device, wherein a rebound plate 9 is provided above the rotary blade 2.

The invention according to claim 2 is characterized in that the rotary blades 2 provided in a plurality of stages on the vertical rotary shaft 1 at appropriate intervals in the axial direction are provided.
2. . , Receiving blades 3 and 3 facing the rotary blade 2 respectively. .
A left and right pair of left and right front openings 5 in a remaining stem treatment device 7 which surrounds the outer periphery of the cutting device 4 with a cover 6 so as to form a vertical opening 5 in the front. In this configuration, the remaining trunk entrance guide plate 10 facing upward and downward is provided in a protruding and expanding shape toward the front.

According to a third aspect of the present invention, the width A of the opening 5 of the cover 6 provided in the vertical direction in front of the cutting device 4 is defined.
3. The structure of the remnant stem processing apparatus according to claim 1, wherein the opening is a wide opening substantially equal to the rotation diameter D of the rotary blade 2 attached to the blade mounting plate 11 in a laterally protruding manner. And

According to a fourth aspect of the present invention, there is provided a trunk processing apparatus mounted in front of the mobile agricultural machine, wherein the rotating shaft has a front inclined posture such that an upper end is inclined forward, and a movable agricultural machine is provided at a rear lower end.
Bracket 14 for holding the front support bar 13 in the front-rear direction
The structure of the trunk processing apparatus according to any one of claims 1 to 3, characterized in that:

[0009]

First, the operation of the present invention will be described. First, the front opening 5 of the cover 6 is attached to the front of the moving agricultural machine 12 by the forward movement of the trunk processing device 7 as the moving agricultural machine 12 advances. 2 on the ground coming in from
When the upright remaining stem T with the number leaf is relatively approached to the rotating shaft 1, the remaining stem entrance guide plate 10 provided between the upper and lower sides of the opening 5 in a pair of left and right is provided with the second leaf. The rotating blade 2 provided with a plurality of stages on the rotating shaft 1 for easily guiding the upright remaining stem T
And the cutting device 4 composed of the receiving blade 3, the upright remaining trunk T is cut into a plurality of short pieces and falls downward. At this time, since the upright remaining trunk T that vegetates with the lower end in the soil does not move in the vertical direction, the trunk portion of the upright remaining trunk T above the root can be easily cut into a plurality of stems. Around the lower part of the upright remnant T,
Even if the remaining cutting stems and second leaves that fall are collected, the jumping plate 9 moves forward while easily discharging the remaining cutting stems and second leaves out of the remaining stem processing device.

The first aspect of the present invention has the above-described structure, and has the following technically specific effects. That is, the root portion of the upright remnant stem T which is lower than the remnant stem processing device 7 is left in the soil as it is, and the cutting device 4 including the rotary blade 2 and the receiving blade 3 forms the second leaf or the residue above the root portion. Since the stem is cut, the upright remaining stem T does not move up and down during the cutting, so that the stem can be easily cut and the cut second leaf can be easily discharged out of the apparatus. For this reason, there is no rotation at the time of cutting, and the driving resistance does not increase, so that continuous work can be easily performed without the need for cleaning time. Further, when the mobile agricultural machine 12 moves forward, the trunk can be advanced without catching the stem at the lower portion of the stem processing device 7, so that the stem remains at the place where the vegetation was in the soil, and the stem processing device 7 is placed on the ground. Can be advanced toward the next upright remaining trunk T without roughening.

According to the second aspect of the present invention, since the above-described structure is employed, the cutting device 4 including the rotary blade 2 and the receiving blade 3 through the front opening 5 without fail for the upright remaining stem T with the second leaf. I can guide you. According to the third aspect of the present invention, since the vegetation width of the upright remaining stem T with the second leaf is widened, the upright remaining stem T with the second leaf can be reliably inserted into the front opening 5. Can be guided to the cutting device 4 composed of the rotary blade 2 and the receiving blade 3.

According to the fourth aspect of the invention, if the front end of the movable agricultural machine 12 has a front support frame bar 13 in the form of a bar arranged in the left-right direction, the rear end of the remaining trunk processing device 7 can be provided. The lower portion can be easily attached via the holding bracket 14, and can be easily attached to various types of mobile agricultural machines.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. This embodiment relates to a remnant stem processing apparatus for cutting and discharging a trunk such as a plant of another thin branch, mainly using the remnant trunk of tobacco, and its contents will be described below.

First, the overall layout configuration will be described. In the illustrated example, the mobile agricultural machine 12 is a four-wheel agricultural tractor having front and rear wheels 16, 17, but may be a walking type two-wheel walking tractor (not shown). The overall configuration will be described with reference to the drawing. A front frame 19 protrudes forward below the engine 18 on the tractor side, which is the mobile agricultural machine 12, and a front support frame, which is a lateral bar, is provided at the protruding front end. A front hitch which is a bar 13 is provided. A holding bracket 14 provided at the front end of the front support frame 13 and at the rear of the lower end of the remaining trunk processing device 7 is attached in a forwardly inclined posture such that the upper end of the device is in the front position. A rotary tillage device 20 is attached to the rear of the mobile agricultural machine 12.

An engine 21 which is an independent drive source of the trunk processing device 7 is mounted on the upper part of the trunk processing device 7. The engine 21 is independent of the engine 18 of the mobile agricultural machine 12 and independent of the engine 18. It can be driven or stopped. Then, the cutting operation is explained by removing the tobacco leaves and using the remnant stem with the second leaf. The upright remnant T and the second leaf N vegetated at intervals along the direction of the ridge on the ridge M are ridged. By moving the moving agricultural machine 12 traveling over M in the direction of arrow F and operating the cutting device 4 including the rotary blades 2 provided in a plurality of upper and lower stages, the stem of the upright remaining stem T and the second leaf N is 12.5 cm. And cut to a length of about 25 cm, and the cut stem portion falls downward.
The remaining stem root 22 remaining on the ridge M and the cut stem S portion dropped and scattered in the vicinity of the ridge are buried in the excavated soil D by the drive tilling operation of the rotary tilling device 20 attached to the rear part of the mobile agricultural machine 12.

Next, the remaining trunk processing device 7 will be specifically described. In the illustrated example, the remnant stem processing device 7 is configured such that the rotation shaft 1 in the up-down direction when viewed from the side is inclined obliquely forward so that the upper end is inclined a predetermined angle of about 15 degrees toward the front. The blade mounting plate 11 is attached to the rotary shaft 1 at predetermined intervals in the vertical direction, for example, at intervals of about four to seven steps.
, The two rotary blades 2 are respectively displaced by 180 degrees so as to protrude from the peripheral edge portion of the circular blade mounting plate 11 and mounted. The upper and lower portions of the rotating shaft 1 are composed of a ceiling plate 23 and a lower bearing portion 24.
Are rotatably supported by bearings provided respectively. The detailed configuration around the lower bearing 24 will be described later.

Left and right rear struts 25, 25 are provided between the upper and lower ends of the remnant stem processing device 7 on both rear sides of the ceiling plate 23 and the lower bearing portion 24. The upper pipe 27 of a pair of left and right upper support frames 26, 26 projecting in the front direction is detachably mounted on the base pipe. A main frame is formed by integrally attaching rear end bases of a pair of left and right lower support frames 28, 28 projecting forward, respectively, to the lower end of the rear support 25 by welding or the like.

The upper supporting frames 26, 26 are attached to the left and right ends in the width direction on the upper surface of the ceiling plate 23, and serve as upper supporting frames for supporting the upper end of the trunk processing device 7. The upper portion between the left and right upper supporting frames 26, 26 is connected by a left and right connecting plate 29. As described above, the vertical engine 21 is mounted on the left and right connecting plate 29 for independently driving the device. The engine driving force passes through a centrifugal clutch 31 attached to an output shaft 30 projecting downward,
Lower drive gear 32 and side driven gear 3 meshing therewith
Then, the driving force is reduced to 3 and the reduced driving force is transmitted to the rotating shaft 1. The driven gear 33 is a rotating shaft 1 that projects upward from the ceiling plate 23.
Attached to the upper end of the

Next, the support frame on the lower side of the trunk processing apparatus 7 will be described. As described above, left and right rear supports 25, 25 are provided between the upper and lower ends at the back of the trunk processing device 7, and at the lower end, a pair of left and right lower protruding frontward is provided. The rear ends of the support frames 28, 28 are integrally welded. A space is formed between the left and right lower supporting frames 28 and the left and right inner sides. When the remaining trunk processing device 7 moves forward in the space, the trunk of the upright remaining trunk T vegetated on the ground is cut off. It is a passage space where the remaining stem root 22 can move without being caught. And the lower support frames 28, 2
Reference numeral 8 denotes a position where the rotary blade 2 does not come into contact with the rear of the rotation locus, and is connected to the left and right by a connecting support plate 34. The connecting support plate 34 is an upright wall plate formed by pressing a flat plate into a U-shape in a side view,
The lower edge is attached to the upper surface of the lower support frame 28, and serves as a ceiling of a passage space provided below the center in the left-right direction. The lower edge 68b in the illustrated example is a substantially linear edge in the horizontal direction. When the middle part of the lower edge in the left-right direction is depressed upward, the ceiling of the passage space can be easily raised.
A non-contact gap at the time of movement can be provided between the cut surface of No. 2 and the lower edge.

In the illustrated example, the lower bearing 24 is provided around the rotary shaft 1 between the first and second blade mounting plates 11 from below, and the lower bearing 24 and the upper edge of the connecting support plate 34 are provided. The parts are connected back and forth by a support frame 35 to support the lower part of the rotating shaft 1 to form a lower support frame. The lower bearing 24 includes a bearing therein, and rotatably supports the lower portion of the rotating shaft 1. A lower angular shaft 36 of the rotating shaft 1 protrudes downward from the lower bearing portion 24, and an inner hexagonal hole spacer 37 having the blade mounting plate 11 at the lower end is provided on the lower angular shaft 36 having a hexagonal cross section. It is inserted and fixed with a nut 38. In addition, a sled-shaped ground plate 3 is provided at the front end of the lower support frame 28.
9 is attached.

As described above, the trunk processing device 7 is
Left and right rear supports 25 standing upright at the rear of the device, and upper support frame 2
6, and is supported by a main frame including a support frame 35, a connecting support plate 34, a lower support frame 28, and the like. At the middle part of the rear support 25 in the vertical direction, a left and right connection frame 41 for integrally connecting the left and right rear supports 25, 25 is provided. The left and right connecting frames 41 are formed by inserting hollow pipes 42, 42 welded and integrated at both ends thereof into the rear support 25, and restricting the vertical movement by locking members 43 such as bolts or roll pins. This left and right connecting frame 4
A bracket 44 projecting rearward is provided at 1 at the center part in the left-right direction, and a shaft part 45 of an operation handle described later is attached to the bracket 44 so as to be movable in the vertical direction so as not to move vertically. Rear support 2 between left and right connection frame 41 and lower support frame 28
A moving pipe 46 slidable in the vertical direction is provided in the 5, 25 parts.
The left and right moving pipes 4 are attached to each other.
6 and 46 are connected to each other by a main mounting frame 47. The main mounting frame 47 is formed by bending an iron plate into a substantially L-shape in a side view.
The upper flat portion 47a is welded and integrated with the moving pipe 46, and the upright wall 47b is attached to the front support frame 13 which is the front hitch portion of the moving agricultural machine 12 via the holding bracket 14.

The surroundings of the holding bracket 14 will be described in detail below. The holding bracket 14 has a main mounting frame 47, a holding plate 48, and upper and lower bolts 49 as main members. The front hitch portion of the mobile agricultural machine 12 is a front support frame 13 having a shape in which a plate having a predetermined thickness is disposed in the left-right direction.
The front wall of the main mounting frame 47 is placed on the front wall of the main mounting frame 47, the holding plate 48 is located on the rear surface of the front support bar 13, and both are tightened with the upper and lower bolts 49, 49, and the remaining trunk processing is performed on the front of the mobile agricultural machine 12. The device 7 is detachably mounted.

At the middle of the main mounting frame 47 in the left-right direction, a screw hole fitting 51 for inserting the above-described telescopic screw 50 below the handle shaft 45 is integrally provided. When the main mounting frame 47 is attached to and fixed to the front support bar 13 which is the front hitch portion of the movable agricultural machine 12, the main mounting frame 47 cannot move up and down. Therefore, when the telescopic screw 50 is relatively rotated, the rear support 25 moves up and down. The height at which the remnant trunk processing device 7 is attached to the machine body can be adjusted in the vertical direction with the expansion screw 50.

Next, the cutting mechanism for cutting the remaining stem, the side cover for covering the outer periphery thereof, and the like will be described in detail. As described above, the rotating shaft 1 that is supported by bearings provided above and below the ceiling plate 23 and the lower bearing portion 24 is configured such that the upper end of the shaft is inclined forward by about 15 degrees in the vertical and vertical directions when viewed from the side. . This rotating shaft 1 has a vertical length of 125 mm to 2 mm.
The blade mounting plate 11 is mounted on the blade mounting plate 11 at about 4 to 7 steps, shifted at substantially equal intervals of about 50 mm, and two rotary blades 2 and 2 project outward from the peripheral edge of the blade mounting plate 11. And are detachably attached via fasteners such as bolts and screws, respectively. The rotary blade 2 has blade portions on the rotation front side and the rotation rear side, and can be used upside down when one blade portion is worn. The blade portion has a receding angle of about 30 degrees, and has a substantially isosceles triangular shape at the tip end in plan view. Around the rotary shaft 1 with the rotary blade 2, the rotary blade 2
Are covered with the cover 6 in a state where they are separated from each other at positions where they do not come into contact with each other.

A vertically long front opening 5 is provided at the front of the cover 6 in the traveling direction, so that the upright remaining trunk T and the second leaf N are fed by the advance of the mobile agricultural machine 12. When the rotating shaft 1 rotates in the direction, the rotating blades 2, 2. . A side opening 52 is opened at the lower side of the rotation of the side cover 53, and a side cover 53 having a wall surface gradually extending outward from the upper end to the lower end is formed in the side opening 52.
Covers the outlet of the side opening 52. Side cover 5
3 is a U-shaped cross section in plan view, and front and rear guide standing walls 53 are provided.
a and a side inclined guide wall 53b, and a drop discharge port 54 having a U-shape in a plan view is provided at the lower end of the side cover 53. Also, on the inner surface of the side inclined guide wall 53b,
An elastic body of a rubber plate is attached, which is full in the front-rear direction and has a ceiling plate 23 as an upper end and a lower end hanging down from a drop discharge port 54 toward the ground. In the illustrated example, a flat rubber plate is used, but a foamed rubber plate such as a sponge or a flat plate made of a soft resin agent may be used. Although not shown, an elastic body of a plate or a projection divided into a plurality may be used. Also, the front and rear guide standing walls 5
A plate-like or divided elastic body of a plurality of plate bodies or projections may be provided on 3a.

On the lower side in the rotation direction near the front opening 5 of the cover 6, a vertical front strut 55 is disposed between the ceiling plate 23 and the lower support frame 28, and the front strut 55 has a rotating shaft. 1
A blade fixing plate 56 for mounting the receiving blade 3 corresponding to the blade mounting plate 11 at substantially the same height as that of the blade mounting plate 11 is integrally mounted by welding or the like. The receiving blade 3 is detachably attached to the blade fixing plate 56 with a fastener such as a bolt or a screw. The receiving blade 3 is also a blade portion having a receding angle of about 30 degrees before and after the rotation, and is used by reversing when one side is worn. If the rotary blade 2 and the receiving blade 3 are made of the same component, the assembly can be simply reversed upside down and the cost can be reduced. The upright remaining stem T is cut by being sandwiched by a cutting device 4 including a blade portion of the rotary blade 2 and a blade portion of the receiving blade 3.

At the left and right of the front opening 5 of the cover 6, remaining trunk entrance guide plates 10, 10 for guiding the upright remaining trunk T to the front opening 5 when the movable agricultural machine 12 moves forward, are formed in an eight-letter shape with a wide distal end. It is mounted with a pair of left and right round head screws. The right outer standing wall, which is the cover 6 on the side of the front opening 5, has a monocoque configuration in which the cover plate is formed in a box shape to reduce the weight.
The left side wall portion is vertically reinforced by the front support 55 as described above.

As shown in the figure, a lower cover 57 is provided below the right outer standing wall of the cover 6 with its lower end opening outward centering on the upper hinge in the front-rear direction. The front and rear walls of the upper cover 57 are bent in a U-shape in plan view, and the rear wall portion is fixed to the rear wall of the cover 6 with a fixing knob. That is, the rear wall has a long hole centered on the hinge, and the opening and closing position of the fixing knob is adjusted to adjust the opening size of the lower end of the good cover 57, so that the cutting stem S is frequently rotated. When the remaining stem S is clogged in the corner or the corner, it can be discharged to the right outside from the opening at the lower end, or can be closed when the remaining stem S does not rotate.

Below the front opening 5 of the cover 6, a pair of left and right lower stem entry guide plates 10 are attached in a front-spreading manner as described above. N is guided to the lowermost cutting section 8 of the cutting device 4. As shown in FIGS. 1 and 2, the substrate 59 of the jumping plate 9 is attached to the upper surface of the rotary blade 2 by bolts together with the rotary blade 2 attached to the lowermost cutting portion 8.

The rebounding plate 9 projects outwardly from the intermediate portion between the two mounting bolts of the substrate 59 with a receding angle substantially parallel to the blade portion on the rotation front side of the rotary blade 2, and its tip is a rotary blade. The rotation diameter is about 2. Also, a rear window 58 is provided on the rear wall of the cover 6 on the side of the rear supports 25, 25. In the illustrated example, the rear window 58 closes the opening provided in the upper half of the rear surface of the cover 6 with a peeping wall made of an iron plate or an iron net having small holes such as punched metal, and a detachable resin is provided on the rear surface. A transparent transparent plate is attached to prevent dust from scattering to the work vehicle side, and can be cleaned when the inner wall becomes dirty. The rear window 58 can be attached to the front of the mobile agricultural machine 12 by attaching the trunk processing device 7 to the front of the mobile agricultural machine 12 and running the machine body forward to perform a cutting operation. Upright standing trunk T standing upright
While the driver directly confirms the position of the vehicle, the driver can steer the aircraft to the left and right to move forward, which facilitates the driving operation.

Next, the operation of the engine 18 attached to the upper part of the trunk processing device 7 will be described. Engine 18
Since a throttle lever and a stop switch for operating the rotation of the engine are provided in the vicinity of the driver and in the engine 18 section, the driver determines the engine 1 depending on the presence or absence and the density of the standing upright T during traveling work.
8 can be easily controlled to reduce unnecessary fuel consumption, thereby reducing fuel consumption. At low speed, the rotary shaft 1 is not driven by the action of the centrifugal clutch, so that it is quiet.
It is safe. In addition, when a hard object is bitten around the rotary blade 2, the independent engine 18 can be immediately stopped at a plurality of locations outside the driver and the vicinity of the engine 18 to improve safety and prevent breakage easily. It can be aimed at.

As shown in the overall side view, the trunk cutting device 7 is inclinedly attached to the front of the body of the mobile agricultural machine 12, and the rotary tillage device 20 is attached to the rear of the machine via a three-point link device so as to be able to move up and down. Therefore, the height of the remaining trunk cutting device 7 is adjusted by rotating the operating handle of the remaining trunk cutting device 7 at the front of the fuselage to a position where the grounding plate 39 is substantially in contact with the ground on the ridge M while straddling the ridge M, The upright remaining stem T and the second leaf N are first cut from the upper end side and dropped on the ridges, and the dropped cutting residual stem S and the second leaf N are simultaneously plowed by the subsequent rotary tillage device 20. The cutting process of the remaining trunk and the tilling work can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a cross-sectional side view in which an apparatus is attached to a front part of a fuselage.

FIG. 2 is a cross-sectional plan view of a lowermost cut portion in FIG. 1;

FIG. 3 is a front sectional view of the entire cutting apparatus.

FIG. 4 is a rear view of the entire cutting device.

FIG. 5 is an enlarged side view of a main part of the cutting device attached to the machine.

FIG. 6 is an overall perspective view in which a device is attached to a front part of the fuselage.

FIG. 7 is an overall side view in which the device is attached to the front of the fuselage.

FIG. 8 is a plan sectional view around a cutting device of another example.

[Description of Signs] 1 Rotary shaft 2 Rotary blade 3 Receiving blade 4 Cutting device 5 Opening 6 Cover 7 Remaining stem treatment device 8 Lowermost cutting portion 9 Jumping plate 10 Remaining trunk entrance guide plate 11 Blade mounting plate 12 Moving agricultural machine 13 Front support bar 14 Holding bracket

Claims (4)

[Claims] 1. Rotating blades 2, 2,... Provided in a plurality of stages on a vertical rotating shaft 1 at appropriate intervals in the axial direction. . , Receiving blades 3 and 3 facing the rotary blade 2 respectively. . A cutting device 4 having a cutting device 4 that surrounds the outer periphery of the cutting device 4 with a cover 6 so as to form an opening 5 in front of the cutting device 4. Is a remnant stem processing device provided with a rebound plate 9 above the rotary blade 2. 2. Rotary blades 2, 2,... Provided at a plurality of stages on a vertical rotating shaft 1 at appropriate intervals in the axial direction. . , Receiving blades 3 and 3 facing the rotary blade 2 respectively. . A cutting device 4 having a vertical opening 5
In the remnant stem treatment device 7 surrounded by the cover 6 to form the left trunk, the left remnant entrance guide plates 10 vertically opposed to each other on the left and right sides of the front opening 5 are provided in a protruding and expanding shape toward the front. Characteristic residual stem processing equipment. 3. The width A in the left-right direction of the opening 5 of the cover 6 provided vertically in front of the cutting device 4 is substantially equal to the rotation diameter D of the rotary blade 2 mounted on the blade mounting plate 11 in a laterally protruding manner. 3. The trunk processing apparatus according to claim 1, wherein the opening is substantially the same width. 4. The trunk processing apparatus 7 attached to the front of the movable agricultural machine 12 has a front inclined posture in which the upper end of the rotating shaft 1 is inclined forward, and a front support frame 13 of the movable agricultural machine 12 is clamped at the rear of the lower end. 4. An apparatus according to claim 1, wherein said holding bracket is a holding bracket.