JP2014097041A - Sulky type tending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky type tending machine, when traveling with a wheel located rearward a forming sheet, preventing the forming sheet from getting obstructive, and capable of forming a ridge of a desired shape in the sulky type tending machine provided with the forming sheet for forming the ridges in such a manner as to change the attitude.SOLUTION: The sulky type tending machine includes: a forming sheet 28 that rotatingly drivably supports a tillage rotary 3 at a lower side of a machine body 2 having a steering handle 1 extending rearward, and is disposed at a rear side of the tillage rotary 3 for forming a ridge U; a wheel 38 disposed at the rear side of the forming sheet 28; a regulation plate 39 that faces the forming sheet 28 from the rear side to regulate rearward deformation of the forming sheet 28; and a support frame 4 that supports the forming sheet 28 and the wheel 38 separately to the rear end side of the machine body 2. The forming sheet 28 is switchably supported by the support frame 4 between a working attitude for forming the ridges U and a storage attitude to be stored along the machine body side, and mountingly supports the regulation plate 39 to the wheel 38 side.

Description

  The present invention relates to a walking-type management machine provided with a molding sheet for molding a bag so that the posture can be switched.

  A tilling rotary is supported on the lower side of the aircraft with a steering handle extended rearward, and a wheel positioned behind the tillage rotary is grounded on the support frame on the rear end side of the aircraft. Is supported so that it can be switched between a traveling posture and a retracted posture stored along the fuselage side, and a molding sheet disposed on the rear side of the tillage rotary is supported on the wheel side, and the molding is performed when the wheel is in a traveling posture. 2. Description of the Related Art A walking type management machine shown in Patent Document 1 in which a sheet is in an action state for forming a bag is known.

  Further, without forming the wheel, the molded sheet is supported on the support frame so that the posture can be switched between the working state for molding the bag and the retracted state stored along the machine body side, and the molded sheet is placed behind the molded sheet. Also known are walking-type management machines shown in Patent Documents 2 to 5, in which resistance bars are provided as restricting members for restricting deformation of the seat to the rear side.

JP 2012-90536 A Japanese Patent No. 4909292 Japanese Patent No. 4972180 Japanese Patent No. 4998781 Japanese Patent No. 5033253

  According to the walking type management machine of the above-mentioned document, it is possible to form the ridge by switching the molded sheet to the working state, so that the detachment work such as a molding unit for forming the ridge is not required, and the ridge is efficiently formed. It becomes possible to do.

However, since the walking type management machine of Patent Document 1 supports the molded sheet together with the wheels on the support frame, when trying to move the aircraft using the wheels in a place where there is no need to mold the heel, There are cases where the molded sheet becomes an active state and becomes an obstacle.
Further, in the walking type management machines of Patent Documents 2 to 5, the deformation of the molded sheet to the rear side is restricted by the resistance bar extending in the vertical direction, but the deformation of the molded sheet is caused by the shape of the resistance bar. May not be properly regulated, and in such a case, it becomes difficult to form a bag having a desired shape.

  The present invention is a walking type management machine provided with a molded sheet for forming a bag so that the posture can be switched, and the molded sheet is prevented from becoming an obstacle when traveling by a wheel located behind the molded sheet, and is desired. It is an object of the present invention to provide a walking-type management machine capable of forming a ridge having a shape of 1.

  In order to solve the above-mentioned problem, a walking-type management machine that supports a tillage rotary 3 on a lower side of a body 2 having a steering handle 1 extended rearward so that the tillage rotary can be driven to rotate. A molded sheet 28 that is disposed to form the flange U, a wheel 38 that is disposed on the rear side of the molded sheet 28, and the rear side of the molded sheet 28 that is opposed to the molded sheet 28 from the rear side. A regulation plate 39 for regulating, and a support frame 4 for supporting the molded sheet 28 and the wheel 38 separately on the rear end side of the machine body 2, the working posture for molding the ridge U, and the machine body side It is characterized in that it is supported on the support frame 4 so as to be switchable to the retracted position stored along and the support plate 39 is mounted and supported on the wheel 38 side.

  Since the deformation of the molded sheet toward the rear side can be regulated by surface contact with the regulating plate facing the molded sheet, it is possible to appropriately control the molding sheet as compared with the case where the rod-shaped member regulates the rearward deformation of the molded sheet. Deformation can be restricted, and it becomes easy to mold the ridge into a desired shape. In addition, since the switchable molded sheet is supported on the support frame separately from the wheel, if the molded sheet is switched from the working position to the retracted position when using the wheel, the machine body uses the wheel without being disturbed by the molded sheet. Can be moved easily.

It is a side view of the walk type management machine to which the present invention is applied. It is a principal part side view of FIG. FIG. 3 is a view as seen from an arrow A in FIG. 2. It is BB sectional drawing of FIG. It is a rear view of the molding sheet at the time of a saddle molding. (A) is a principal part side view of the walking type management machine which shows another embodiment of this invention, (B) is BB sectional drawing of (A).

  1 is a side view of a walking type management machine to which the present invention is applied, FIG. 2 is a side view of the main part of FIG. 1, FIG. 3 is a view taken in the direction of arrow A in FIG. FIG. 3 is a sectional view taken along line BB in FIG. 2. A machine body 2 having a handle (steering handle) 1 extending obliquely rearward and upward, a left and right tillage rotary 3 supported rotatably on the lower side of the machine body 2, and attached to the rear end side of the machine body 2 A molding device 6 that is supported on the side of the support frame 4 that is attached and fixed so as to form a ridge and a rear unit 7 that is supported on the side of the support frame 4 and is located behind the molding device 6 are provided.

  The airframe 2 includes a horizontal frame 8 that also functions as a fender cover, an engine 9 fixed on the upper surface side of the horizontal frame 8, a transmission case 11 disposed on the side of the engine 9, and left and right sides of the airframe 2. A mission case 12 inclined downward in the forward direction at the center of the width, and a hitch 13 comprising a pair of left and right side plates 13a, 13a fixed to the lower surface of the rear end of the horizontal frame 8 and facing each other in parallel. It has.

  The transmission case 11 transmits engine power into the transmission case 12, and the transmission case 12 is formed in a range from the upper side to the lower side of the horizontal frame 8, and its front part is obliquely forward and downward from the horizontal frame in a side view. Protruding. The central portion of the left and right rotary shaft 14 is rotatably supported at the lower end of the transmission case 12, and the transmission case 12 shifts the power from the transmission case 11 and transmits it to the rotary shaft 14.

  The rotary shaft 14 is provided with a plurality of unillustrated tilling claws, and the plurality of tilling claws and the rotary shaft 14 constitute the tilling rotary 3 described above. Incidentally, an operation lever 16 located below the handle 1 is projected rearward and obliquely upward at the rear part of the machine body 2. By the swinging operation of the operation lever 16, the power transmitted from the transmission case 12 to the rotary shaft 14 is changed.

  The handle 16 includes a handle frame 17 fixed to the upper surface of the rear end portion of the machine body 2, and a handle main body 18 that is attached and supported on the base end side of the handle frame 17 and extends obliquely rearward and upward. The handle main body 18 is bifurcated left and right toward the protruding side (front end side), and a pair of left and right front end portions of the handle main body 18 are grips 18a and 18a bent downward, respectively.

  A clutch lever 19 is provided on one side of the left and right grips 18a, 18a so as to swing away from and close to the grip 18a. When the clutch lever 19 is gripped together with the grip 18a, a clutch mechanism (not shown) is provided. While the tillage rotary 3 is tillage driven (rotation driven) by the connection operation, when the hand is released from the clutch lever 19, the clutch lever 19 swings in a direction away from the grip 18a, and the clutch mechanism is disconnected. Then, the tilling rotary 3 is stopped.

  The support frame 4 is detachably attached and fixed to the above-described hitch 13 side of the airframe. Specifically, a vertical support cylinder 21 is welded between the rear end portions of the pair of left and right side frames 13a, 13a, and the upper part of the pipe-shaped support frame 4 is inserted into and supported by the support cylinder 21. The support frame 4 has an attachment portion 22 that is obliquely formed rearward and bent obliquely downward and rearward with respect to a proximal half that extends in the vertical direction. In order to project the attachment portion 22 backward from the support cylinder 21, a protruding opening 21 a that is opened in a notch shape is formed on the lower rear surface side of the support cylinder 21.

  After inserting the base end side half of the support frame 4, the support frame 23 is fixed to the support cylinder 21 by inserting the support pins 23 in the left-right direction through the support cylinder 21 and the support frame 4. Since the support frame 4 has a plurality of support holes 4a, 4a that allow the pins 22 to pass therethrough in the vertical direction, the support frame 4 can be changed by appropriately changing the support holes 4a, 4a through which the support pins 22 are inserted. You can change the height.

  The molding device 6 includes a longitudinally extending molding-side sleeve 24 attached to the mounting portion 22 by fitting and inserting the mounting portion 22 in the axial direction, and a longitudinal direction extending from the front end side of the molding-side sleeve 24 outward in the longitudinal direction. The frame 26, a horizontal frame 27 whose center is fixed to the molding sleeve 24 side end (base end) of the vertical frame 26 and extends in the left-right direction, and the support frame 4 side end (base end) ) And a molded sheet 28 made of a synthetic resin that can be elastically deformed flexibly.

  A central portion in the left-right direction of the rear surface of the horizontal frame 27 is attached to the front surface of the vertical frame 26, and the vertical frame 26 and the horizontal frame 27 constitute a non-flexible seat frame having a T shape in the rear view. Is fixed to the molding-side sleeve 24 and is integrally supported by the molding-side sleeve 24 and supported by the support frame 4 so as to be rotatable around the axis of the mounting portion 22.

  The molded sheet 28 is formed in an inverted triangular shape whose left and right widths gradually decrease from the base end portion toward the tip end portion in the rear view. A plurality of left and right base end portions of the molded sheet 28 brought into contact with the front side of the horizontal frame 27 are attached to the horizontal frame 27 by means of attachments 29 such as pins, and are formed at the distal end portion of the vertical frame 26. The molded sheet 28 is attached to the seat frame by attaching the central portion of the seat 28 with a fixture 31 such as a bolt.

  In this attached state, the lateral width of the base end portion of the molded sheet 28 is set to be slightly larger than the overall length of the horizontal frame 27, and the base end portion of the molded sheet 28 slightly protrudes from the lateral frame 27 to the left and right sides. Yes. Further, the formed sheet 28 is formed in a shape in which the top portion located on the front end side is cut in the left-right direction and the left-right width is reduced stepwise, and the front end portion becomes the flange portion 28a.

  The support frame 4 penetrates back and forth through the center portion in the left-right direction at the base end portion of the seat frame and the molded sheet 28, and the molded sheet 28 has the axis of the mounting portion 22 by the above-described structure of mounting the seat frame to the support frame 4. It can rotate freely.

  The molding sheet 28 can be switched between a molding posture (working posture) in which the tip portion is directed downward and a retracted posture in which the molding portion is rotated by a half turn so that the tip portion is directed upward by rotation about the axis. Composed. In the working posture, the molded sheet 28 is positioned immediately behind the tillage rotary 3 and can be formed into a cocoon (see FIG. 2), while in the retracted posture, the molded sheet 28 is stored along the back side of the machine body 2. (See FIG. 1).

  Further, the rotation of the molding-side sleeve 24 around the axis with respect to the attachment portion 22 is regulated every half circumference by a positioning pin 32 penetrating the molding-side sleeve 24 and the attachment portion 22 in the left and right directions. On the axis of the mounting portion 2, it is positioned and locked in one of the above-described forming posture and retracted posture.

  The rear unit 7 includes a rear side sleeve 33 into which the mounting portion 22 is fitted and inserted in the axial direction in a state where the rear unit 7 is positioned directly behind the forming side sleeve 24, and a resistance rod that integrally protrudes radially from the rear side sleeve 33. 34, a rod frame 36 that is a support member that projects to the opposite side of the resistance rod 34 with the rear sleeve 33 interposed therebetween, and a left and right axle 37 that is installed at the projecting end (tip portion) of the rod frame 36. And a pair of left and right tail wheels (wheels) 38 supported so as to be freely rotatable, and a regulating plate 39 attached and supported on the tail wheel 38 side.

  The resistance rod 34 has a middle portion bent backward with respect to the base end portion, and a distal end portion bent forward with respect to the middle portion, and is bent into an S shape as a whole. On the other hand, the rod frame 36 is formed such that the distal end side half is bent rearward with respect to the proximal end half that is the same axis as the proximal end of the resistance rod 34.

  The restricting plate 39 is supported by a plate-like fixing bracket 41 at a portion near the tip of the bar frame 36 so as to be able to face the molded sheet 28 from the rear side. One end of the fixing bracket 41 is integrally welded to the rod frame 36, and the other end is integrally welded to the back side of the regulation plate 39. Incidentally, the fixed bracket 39 is inclined forward, which is a direction approaching the airframe toward the side away from the rear side sleeve 33.

  The rear unit 7 is supported by the support frame 4 by the rear side sleeve 33 so as to be rotatable about the axis of the mounting portion 22. For this reason, the tail wheel 38 is rotated by the rotation posture by which the tip end of the rod frame 36 faces downward and the tail wheel 38 touches the field, and by a half circumference from the traveling posture. The tail wheel 38 can be switched to a retracted posture in which the tail wheel 38 faces upward and the tail wheel 38 is stored on the back side of the airframe 2.

  In the retracted posture of the tail wheel 38, the resistance rod 34 is switched to the action posture extending downward, while the resistance rod 34 is in the non-action posture extending upward when the tail wheel 38 travels. Switched. That is, the tail wheel 38 and the resistance rod 34 are used alternatively.

  Further, a positioning pin 42 penetrating the rear side sleeve 33 and the attachment portion 22 in the left-right direction is provided. According to the positioning pin 42, the rear side sleeve 33 can be positioned and locked to the mounting portion 22 in a rotational position in which the tail wheel 38 is switched to the retracted position and the resistance bar 34 is switched to the operating position, while the tail wheel 38 travels. The rear sleeve 33 can be positioned and locked to the attachment portion 22 at a pivot position where the resistance rod 34 is switched to the non-acting posture.

  Next, based on FIG.1, FIG.2, FIG.3 and FIG. 5, the tilling operation | work using this walking type management machine is demonstrated.

  When performing the tilling work without forming the ridge, as shown in FIG. 1, the molded sheet 28 is switched to the retracted position, and the tail wheel 38 is switched to the retracted position by setting the resistance bar 34 to the acting position. The operator grips the left and right grips 18a, 18a of the handle 1 with both hands, drives the tillage rotary 3 to tillage, and moves the machine body 2 forward. At this time, the resistance bar 34 protrudes rearward and downward from the support frame 4 and is inserted into the soil, so that moderate running resistance is generated, stability is increased, and efficient tillage work can be performed. It becomes possible.

  FIG. 5 is a rear view of the molded sheet at the time of punch molding. As shown in FIGS. 2, 3 and 5, when forming the straw U with soil in the field such as tillage soil, the molding sheet 28 is switched to the molding posture and the resistance bar 34 is set to the non-acting posture. The tail wheel 38 is switched to the running posture, and the front surface of the regulating plate 39 is opposed to the lower part of the rear surface of the molded sheet 28 (specifically, the upper part of the flange part 28a). In this state, the regulation plate 39 is inclined so as to be gradually separated from the molded sheet in a downward direction in a side view.

  When the operator grips the left and right grips 18a and 18a of the handle 1, drives the tillage rotary 3 to drive tillage, and moves the machine body 2 forward, the seat frame in the molded sheet 28 is caused by earth pressure from tillage soil or the like. Is deformed so that the portions (specifically, the left and right edges) that are not applied are bent toward the rear side, and the above-described regulating plate 39 contacts the back surface of the molded sheet 28 and deforms toward the rear side. And the trough portion 28a droops backward, the trough portion U1 of the trough U in the field is recessed, and this is sequentially performed in adjacent rows, so that the peak portion U2 and the trough portion U1 are adjacent to each other. A plurality of ridges U are formed in the field.

  In this way, when the molding sheet 28 of the molding machine 6 is in the molding posture, the tail wheel 38 of the rear unit 7 is always switched to the running posture, and the rearward deformation of the molding sheet 28 is restricted by the restriction plate 39. At this time, due to the surface contact of the regulation plate 39 having an appropriate left and right width to the molded sheet 28, the flange portion 28a is appropriately bent backward, and the bottom surface of the valley portion U1 of the flange U becomes a flat shape. Shaped ridges U can be formed.

  Further, the walking type management machine may be used in a state where the molded sheet 28 is in the retracted posture and the tail wheel 38 is in the traveling posture. In this case, when the machine body 2 is driven by the tail wheel 38, the unused molded sheet 28 is switched to the retracted posture and is in a state along the back surface of the machine body 2, so that the molded sheet 28 interferes with the running. Is prevented.

  In the walking type management machine having such a configuration, by removing the support frame 4 from the support cylinder 21, it becomes possible to remove the molding device 6 and the rear unit 7 attached to the support frame 4 from the machine body 2 side together. In addition, it is not necessary to prepare a dedicated support member or the like for each device to be mounted on the rear end side of the machine body 2, and it is possible to share parts.

  In addition, since the posture of the tail wheel 37, the molded sheet 28, and the resistance rod 34 can be switched while being attached to the support frame 4, the operation can be switched quickly.

  Next, a different point from the above-mentioned form is demonstrated about another embodiment of this invention based on FIG.

  FIG. 6A is a side view of an essential part of a walking management machine showing another embodiment of the present invention, and FIG. 6B is a sectional view taken along line BB in FIG. In the form shown in the figure, the support frame 4 includes a channel member 43 having a U-shape in plan view that extends in the vertical direction with the front open, and a rod-shaped member 44 that is inclined downward from the back of the channel member 43 toward the rear. It is configured.

  The channel member 43 is pinned to the support cylinder 21 in a state of surrounding the periphery of the support cylinder 21 except for the front side. Specifically, the front half of the channel member 43 is attached and fixed to the hitch 13, and the upper side of the rear half is attached and fixed to the support cylinder 21.

  The rod-shaped member 44 serves as the mounting portion 22 described above, and the mounting portion 22 is mounted and supported by the molding-side sleeve 24 so as to be detachable and deformable in the same manner as described above, and the rear portion. The rear unit 7 is attached and supported via the side sleeve 33 so as to be detachable and deformable.

1 Handle (steering handle)
2 Airframe 3 Tillage Rotary (Tillage Work Machine)
4 Support frame 28 Molded sheet 38 Tail wheel
39 Restriction plate (regulation member)

Claims (1)

  A walking-type management machine that supports a tilling rotary (3) so that it can be driven to rotate under a fuselage (2) having a steering handle (1) extended rearward, and is located behind the tilling rotary (3). A molded sheet (28) for forming the ridge (U), a wheel (38) disposed on the rear side of the molded sheet (28), and the molded sheet (28) facing the molded sheet (28) from the rear side. A restricting plate (39) for restricting deformation of the molded sheet (28) to the rear side, and a support frame for supporting the molded sheet (28) and the wheel (38) separately on the rear end side of the machine body (2) ( 4), and the molded sheet (28) is supported on the support frame (4) so as to be switchable between an action posture for forming the ridge (U) and a retracted posture stored along the fuselage side, A walking type management machine in which the restriction plate (39) is attached and supported on the wheel (38) side.

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