JP2014166150A - Walking type tending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walking type tending machine facilitating assembling work and maintenance of a ridge forming sheet in the walking type tending machine including the flexibly deformable ridge-forming sheet at a rear end side of a tilling rotary, and a wheel assisting the traveling.SOLUTION: The walking type tending machine includes: a machine body 1 having a steering handle 2; a tilling rotary 3; a ridge forming sheet 29 that is flexibly deformed; and a wheel 46. The walking type tending machine supports the ridge forming sheet 29 at the rear side of the machine body so as to switch it between a working attitude for forming the ridge and a storage attitude being stored in the upper side of the working attitude. The walking type tending machine further includes a regulation member 44 that has a regulation face 44a for regulating the rearward deformation of the ridge forming sheet 29, at the front face thereof. The regulation member 44 is supported by a support member 43, at the rear end side of the machine body 1 apart from the ridge forming sheet 29, and the wheel 46 is supported by the side face of the regulation member 44.

Description

  The present invention relates to a walking-type management machine provided with a hook-shaped sheet on the rear end side of the machine body.

  An airframe having a steering handle extending rearwardly, a tilling rotary supported rotatably on the lower side of the airframe, a hook-forming sheet disposed on the rear side of the tilling rotary and flexibly deformed, A rear side of the fuselage that is switchable between a working posture for forming the rod and a retracted posture stored above the working posture. A walking-type management machine described in Patent Document 1 supported by is known in the art.

JP 2012-90536 A

  The walking type management machine of the above-mentioned document is configured such that the wheel and the saddle-molded sheet can be simultaneously switched to the working posture or the retracted posture by supporting the saddle-molded sheet by a sheet support member provided on the wheel side. There is a problem that the support member is always disposed between the saddle-molded sheet and the wheel, and the assembly work and maintenance of the saddle-molded sheet may be difficult.

  The present invention is an easy-to-assemble work and maintenance of a hook-forming sheet in a walking-type management machine including a hook-forming sheet that is deformed flexibly on the rear side of the tillage rotary to form a hook, and a wheel that assists running. To provide a simple walking type management machine.

  In order to solve the above-described problems, the present invention includes a body 1 having a steering handle 2 extending rearward, a tilling rotary 3 supported on the lower side of the body 1 so as to be rotationally driven, and the tillage rotary 3 A bag forming sheet 29 disposed on the rear side and deformed flexibly; and a wheel 46 disposed on the rear side of the bag forming sheet 29; and a working posture for forming the bag forming sheet 29; In a walking-type management machine supported on the rear side of the machine body so as to be switchable to a retracted attitude stored above the working attitude, a regulation surface having a regulation surface 44a for regulating the deformation of the saddle-molded sheet 29 in the rear side. The member 44 is supported by the support member 43 on the rear end side of the machine body 1 separately from the saddle forming sheet 29, and the wheel 46 is supported on the side surface of the regulating member 44.

  Since the saddle-forming sheet is supported on the machine body side so that the posture can be switched separately from the wheel, the wheel during the assembling work of the saddle-forming sheet as in the case where the saddle-forming sheet located near the front side of the wheel is supported by the wheel. In addition to reducing maintenance and other troubles, when traveling with the wheel in contact with the ground, if the molded sheet is not required, it can be moved by switching to the retracted position. Is prevented from getting in the way. Further, since the restricting member also functions as a member that supports the wheel, the number of parts is reduced and the manufacturing cost is reduced.

It is the side view of the walk type management machine which showed the state which abbreviate | omitted the shaping | molding machine and the rear part unit. It is the back perspective view which showed the shaping | molding machine and rear part unit at the time of a saddle molding operation. It is the back perspective view which showed the shaping | molding machine and rear part unit at the time of a saddle molding operation. It is the back perspective view showing the former and the rear unit at the time of working posture using a resistance rod. It is the back perspective view showing the former and the rear unit at the time of working posture using a resistance rod. It is the back perspective view showing the molding machine and rear part unit in the leveling work state. It is the back perspective view showing the molding machine and rear part unit in the leveling work state.

  FIG. 1 is a side view of a walking type management machine showing a state in which a molding machine and a rear unit are omitted, and FIGS. 2 and 3 are rear perspective views showing a molding machine and a rear unit at the time of molding operation. is there. A walking type management machine to which the present invention is applied includes a machine body 1 having a handle (steering handle) 2 that extends obliquely upward to the rear, and a horizontal tillage that is supported on the lower side of the machine body 1 so as to be rotatable. A rotary 3, a molding device 4 that is detachably attached to the rear end side of the machine body 1, and a rear portion that is supported on the support frame 6 side that is attached to the rear end side of the machine body 1 and is located on the rear side of the molding machine 4. Unit 7 is provided.

  The airframe 1 includes a horizontal 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 an airframe. A mission case 12 that is inclined downward toward the front at the center of the left and right widths, and a hitch 13 comprising a pair of left and right side plates that are fixed to the lower surface of the rear end of the horizontal frame 8 and face 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 portion is obliquely downward from the horizontal frame 8 in a side view. Projects forward. At the lower end of the transmission case 12, the central portion of the rotary shaft in the left-right direction is rotatably supported. The transmission case 12 changes the power from the transmission case 11 and transmits it to the rotary shaft 5.

  A plurality of tilling claws 10 are mounted on the rotary shaft 5, and the plurality of tilling claws 10 and the rotary shaft 5 constitute the tilling rotary 3 described above. Incidentally, an operation lever 16 located below the handle 2 is provided on the rear portion of the machine body 1 so as to protrude rearward and obliquely upward. The power transmitted from the mission case 12 to the rotary shaft 5 is changed by the swinging operation of the operation lever 16.

  The handle 2 includes a handle frame 17 fixed on the upper surface side of the rear end portion of the machine body 1, 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, and the clutch mechanism is disconnected. The tillage rotary 3 is stopped driving.

  The support frame 6 is detachably attached and fixed to the above-described hitch 13 side of the body 1. Specifically, a vertical support cylinder 21 is welded between the rear ends of the pair of left and right side frames, and the upper part of the pipe-shaped support frame 6 is inserted into and supported by the support cylinder 21. The support frame 6 has an attachment portion 6a that is bent rearward with respect to the base-end-side half that extends in the up-down direction and that extends obliquely downward to the rear, and a rear unit 7 described later on the attachment 6a. Is provided.

  After inserting the proximal half of the support frame 6 into the support tube 21 side, the support pins 22 in the left-right direction are inserted through the support holes 21a and 20 formed in the support tube 21 and the support frame 6, The support frame 6 is fixed to the support cylinder 21. Since a plurality of support holes 20 through which the pins are inserted are formed in the support frame 6 in the vertical direction, the height of the mounting position of the support frame 6 can be increased by appropriately changing the support holes 20 through which the support pins 22 are inserted. You can change the size.

  Hereinafter, the molding machine and the rear unit will be described with reference to FIGS.

  The molding device 4 is a pair of plate-like members that are attached so that the upper side sandwiches the hitch 13 from the left and right outer surface sides, and the vertical frames 27 and 27 that are curved and formed in an L shape downward. A sheet frame comprising a plate-like horizontal frame 28 attached to the lower side of the vertical frame 27 and extending in the left-right direction is provided, and a bag made of a synthetic resin or the like that can be elastically deformed flexibly on the horizontal frame 28 side. A molded sheet 29 is attached. The forming device 4 is configured to be detachable from the hitch 13 side by an attaching / detaching mechanism 31 provided on the vertical frame 27 side, and a working posture in which the cocoon forming sheet 29 is arranged facing the field side to perform the cocoon forming operation. And the retracted posture in which the saddle-molded sheet 29 is stored upside down from the working posture.

  The ridge-shaped sheet 29 has a concave portion 29a in which the central side of one end in the longitudinal direction is notched in a U-shape along the shape of the hitch 13, and the longitudinal direction is substantially the same as the lateral width of the tillage rotary. It is formed into a square shape with a slightly short length. A plurality of left and right sides of the eaves forming sheet 29 brought into contact with the front side of the horizontal frame 28 are attached to the side of the seat frame (horizontal frame 28) by means of attachments 32 such as pins.

  The attachment / detachment mechanism 31 includes a support pin 33 that is inserted from one side (left side in FIG. 3) of the hitch 13 to the other side, an elastic member 34 that urges the support pin 33 in the insertion direction, and the elastic member 34. A U-shaped bracket 36 is provided to support and project from the vertical frame 27 on one side. That is, the support pin 33 of the attachment / detachment mechanism 31 integrally attached to the molding machine 4 side is inserted into the drilling holes 13a drilled in the left and right side plates forming the hitch 13, whereby the molding machine 4 is It is attached to the hitch 13 (airframe rear end) side.

  More specifically, a cylindrical elastic member (coil spring) 34 is disposed between the bent portions of the bracket 36, and the support pin 33 is inserted through the cylindrical elastic member 34. At this time, a ring member 37 is provided between the elastic member 34 and the end of the bracket 36 on the hitch 13 side, and the ring member 37 is opposite to the elastic member 34 on the support pin 33 by a pin or the like. It is configured not to move to.

  Accordingly, the support pin 33 is urged toward the hitch 13 side by the elastic member 34 together with the ring member 37, so that the support pin 33 can be prevented from coming out of the support hole 13a due to vibration or the like, and one end side is L-shaped. By holding the gripping portion 33a bent in the direction and pulling the support pin 33 against the urging force, the support pin 33 can be pulled out from the drilled hole 13a, and the scissors forming sheet 29 can be easily removed.

  Further, since the molding machine 4 attached to the hitch 13 side by the above configuration is configured to be vertically rotatable around the support pin 33, the vertical frame 27 and the rear lower side of the hole 13a of the hitch 13 are provided. A protruding portion 38 that abuts and regulates the downward swing of the molding device 4 is formed. With this configuration, the downward rotation of the eaves forming sheet 29 attached in a state of being inclined rearward is restricted by the contact between the vertical frame 27 and the protruding portion 38, so that the attitude of the eaves forming sheet 29 is maintained. (See FIGS. 2 to 7).

  From the above, by using the attaching / detaching mechanism 31 having the above configuration, the molding device 4 (the cocoon molding sheet 29) is attached to the hitch 13 side while the recessed portion 29a is fitted from the lower side of the hitch 13. Can be switched to the working posture, and the molding device 4 can be switched to the retracted posture by attaching the saddle forming sheet 29 to the hitch 13 side with the recessed portion 29a fitted from above the hitch 13.

  By the way, the eaves forming sheet 29 having the above configuration is formed with an extending portion 29b extending upward from the lateral frame 28 (the front end portion side of the support frame 6) in the rear view in the working posture. Yes. The extending portion 29b extends to the horizontal frame 8 side in the working posture, and can effectively prevent spillage during molding of the ridge. Moreover, the shape of the ridge formed in the field is stabilized by forming the ridge forming sheet 29 into a square shape.

  The rear unit 7 includes a sleeve 41 in the front-rear direction which is externally mounted on the mounting portion 6 a of the rod-shaped support frame 6, a resistance rod 42 integrally protruding in the radial direction from the sleeve 41, and a resistance across the sleeve 41. A rod-shaped support member 43 protruding to the opposite side of the rod 42, a U-shaped restricting body 44 fixed to the support member 43, and a pair of tail wheels (freely mounted on the restricting body 44 side) Wheels) 46, 46.

  The resistance rod 42 has a midway portion bent backward with respect to the base end portion on the sleeve 41 side, a distal end side bent forward with respect to the midway portion, and is bent into an S shape as a whole.

  The sleeve 41 is configured to be rotatable about the axis on the front end side of the support frame 6 by the rear switching mechanism 47, so that the tail wheel 46 comes into contact with the farm field, and only a half circumference from the traveling position. The support member 43 is turned so that the tip of the support member 43 faces upward, and the tail wheel 46 and the restricting body 44 can be switched to the retracted posture stored on the back side of the body 1.

  Incidentally, when the tail wheel 46 is retracted, the resistance rod 42 is switched to the action posture that extends downward, while when the tail wheel 46 is in the traveling posture, the resistance rod 42 does not extend upward. Switch to posture. That is, the tail wheel 46 and the resistance rod 42 are used alternatively.

  The rear switching mechanism 47 includes a sleeve 41, a plate-shaped projecting portion 48 that projects from the middle of the support member 43, a rear switching pin 49 that is bent at one end in an L shape, and a projecting portion 48. An elastic member 51 that is disposed between the sleeve 41 and the rear switching pin 49 and a ring member that is disposed between the one end side of the elastic member 51 and the sleeve 41 and through which the rear switching pin 49 is inserted. 52. Further, the ring member 52 is configured not to move upward from a predetermined position by a pin member or the like.

  As a result, the rear switching pin 49 is biased upward (sleeve 41) by the elastic member 51 via the ring member 52, so that the rear switching pin 49 projects from the lower side to the protruding portion 48, the sleeve 41, It is held in a state of penetrating the attachment portion 6a.

  Specifically, a through-hole penetrating in the vertical direction is formed on the sleeve 41 and the support frame 6 side, and by rotating the sleeve 41 by 180 °, the tail wheel 46 is retracted or traveled (the resistance bar acts). The rear switching pin 49 can be inserted into the sleeve 41 and the support frame 6 only when the posture is either one of the posture or the non-working posture. Further, by pulling the rear switching pin 49 downward against the urging force of the elastic member 51, the insertion state of the rear switching pin 49 is released, and the rear unit 7 is allowed to rotate.

  The restricting body 44 is a U-shaped plate-like member fixed to the front end side of the support member 43 bent to the front (畝 forming sheet 29) side, and faces the rear surface side of the 畝 forming sheet 29. A restricting portion 44a for restricting the rearward deformation of the molded sheet 29 and a mud dropping portion 44b that is disposed along the peripheral surface of the tail wheel 46 and that removes mud and the like in the field attached to the tail wheel 46 are formed. . More specifically, the front end side of the support member 43 is fixed to the bottom of the U-shaped restricting body 44, and the back surface side of the surface to which the support member 43 is fixed serves as the restricting portion 44a. The end side extends rearward, and a tail wheel 46 is provided on the left and right outer surface sides of each open end side via a support shaft 53 so as to be freely rotatable.

  According to this configuration, the restricting body 44 is a mud dropper that removes mud and the like adhering to the tail wheel 46, a member that supports the tail wheel 46 that is provided on the left and right pair, and the restricting part 44 that restricts rearward deformation of the saddle-molded sheet 29. Since the portion 44b is also used, the number of parts is reduced and the configuration is simplified. Further, since the tail wheel 46 is supported by the restricting body 44 fixed to the support member 43, when the rear unit 7 is switched, the restricting body 44 is rotated up and down integrally with the tail wheel 46. .

  Further, according to the molding machine 4 and the rear unit 7 having the above-described configuration, the molding machine 4 and the rear unit 7 are separately provided on the rear side of the body 1 so that the posture can be switched by the attaching / detaching mechanism 31 and the rear switching mechanism 47. Therefore, the assembling work of the molding device 4 and the rear unit 7 is facilitated, and a space can be secured between the rear side of the saddle molding sheet 29 and the tail wheel 46 by switching the posture of only one of them. Therefore, maintenance of each part becomes easy.

Next, based on FIG. 2 thru | or 7, the tilling operation | work using this walking type management machine is demonstrated.
4 and 5 are rear perspective views showing the molding device and the rear unit in the working posture using the resistance rod, and FIGS. 6 and 7 are rear perspective views showing the molding device and the rear unit in the retracted state. FIG.

  In the case of performing the saddle forming operation while traveling on the tail wheel 46, as shown in FIGS. 2 and 3, the saddle forming sheet 29 is switched to the working posture, and the tail wheel 46 of the rear unit 7 is moved to the traveling posture (resistance bar 52). Is switched to the non-acting posture), and the restricting portion 44a of the restricting body 44 is disposed at a position facing the back side of the saddle forming sheet 29.

  In this state, when the operator grips the left and right grips 18a, 18a of the handle 2, drives the tillage rotary 3 tillage, and moves the machine body 1 forward, the firewood forming sheet 29 is caused by earth pressure from the tillage soil or the like. In which the portion to which the lateral frame 28 is not applied (specifically, both right and left edges) is deformed so as to bend backward, and the restriction portion 44a of the restriction body 44 mentioned above comes into contact with the back surface of the saddle-molded sheet 29, The rearward deformation is restricted, and the troughs of the field are recessed. By sequentially performing this in adjacent rows, a plurality of ridges in which the mountain and the valley are adjacent to each other are formed in the field.

  At this time, the mud dropping part 44b of the regulating body 44 is disposed in the vicinity of the peripheral surface of the tail wheel 46, so that the earth dropping part 56b can efficiently drop mud and the like on the farm field attached to the tail wheel 46. Therefore, it is possible to prevent a decrease in traveling performance due to the tail wheel 46 due to adhesion of mud.

  Further, as shown in FIGS. 4 and 5, the hook forming sheet 29 is switched to the working position according to the state of the field and the shape of the hook to be formed, and the resistance bar 42 of the rear unit 7 is set to the working position (tail wheel 46). May be performed in a state in which is switched to the retracted posture. According to this state, instead of the tail wheel 46, the resistance rod 42 protrudes into the field and is inserted into the soil, so that an appropriate running resistance is generated and stability is increased, so that the cultivation work can be efficiently performed. It can be carried out. Moreover, since the regulation body 44 is retracted from the rear side of the saddle-molded sheet 29, the regulation body 44 that is not used does not get in the way.

  When the tilling work is performed without forming the cocoon, as shown in FIGS. 6 and 7, the cocoon forming sheet 29 is switched to the retracted posture, and the resistance bar 42 of the rear unit 7 is moved to the working posture (tail wheel 46). Switch to the retracted position. By this state, it is possible to perform the tilling work efficiently without forming the hook.

  By the way, according to the state, since the extending portion 29b of the flexible ridge-forming sheet 29 is disposed on the lower end side, the leveling work on the upper surface side of the ridge formed on the field using the extending portion 29b is performed. It can be carried out. According to this configuration, it is possible to perform the ground leveling work without replacing the unit with the leveling work unit.

1 Airframe 2 Handle (steering handle)
3 Tillage rotary 29 Hail molding sheet 43 Support member 44 Regulator
44a Regulatory Department (Regulatory aspect)
46 Tail wheel

Claims (1)

  A body (1) having a steering handle (2) extended rearward, a tilling rotary (3) supported rotatably on the lower side of the body (1), and a rear of the tilling rotary (3) And a wrinkle forming sheet (29) disposed on the side and deformed flexibly, and a wheel (46) disposed on the rear side of the wrinkle forming sheet (29). In a walking type management machine supported on the rear side of the machine body so as to be switchable between a working posture to be molded and a retracted posture stored in the upper side of the working posture, the rearward deformation of the eaves forming sheet (29) is restricted. A regulating member (44) having a regulating surface (44a) on the front surface is supported by the support member (43) on the rear end side of the machine body (1) separately from the saddle molded sheet (29), and the regulating member (44 ), A walking type management machine supporting the wheel (46) on the side surface.

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