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CN-113906874-B - Paddy field working machine

CN113906874BCN 113906874 BCN113906874 BCN 113906874BCN-113906874-B

Abstract

The present invention provides a paddy field working machine, which reduces the possibility that the local part of a marking marker is contacted with other objects when a machine body turns, and is easy to turn in a narrow place with good working performance. A paddy field working machine is provided with a marking marker (5A) for forming a driving target line in front of a driving seat, wherein the marking marker (5A) is provided with a supporting part (52) capable of supporting the driving machine body in a manner of swinging left and right around a first vertical axis (y 1) along the up-down direction, and an extension rod part (53) capable of swinging up and down around a first horizontal axis along the horizontal direction at the top end part of the supporting part (52), and the supporting part (52) is configured to be capable of switching the posture into a transverse working Posture (PS) extending towards the transverse outside, a forward retraction Posture (PF) extending towards the front and a backward retraction Posture (PR) extending towards the rear.

Inventors

  • NAKAMORI SHUNSUKE

Assignees

  • 株式会社久保田

Dates

Publication Date
20260505
Application Date
20210607
Priority Date
20200709

Claims (10)

  1. 1. A paddy field working machine is characterized in that, A driving seat is arranged on the riding type running machine body, A marker for forming a travel target line for a rear course on a farmland is provided at a lateral side position of the machine body in front of the driving seat, The scribing marker includes a support portion supported by the traveling body so as to be swingable about a first vertical axis in a vertical direction, and an extension rod portion supported so as to be swingable about a first horizontal axis in a horizontal direction provided at a distal end portion of the support portion, The support portion is configured to be switchable between a lateral operation posture extending from the first longitudinal axis toward a lateral outside of the traveling body, a forward stowage posture extending from the first longitudinal axis toward a front side along the traveling body, and a rearward stowage posture extending from the first longitudinal axis toward a rear side of the traveling body, Is equipped with an operating lever capable of pivoting integrally with the support part about the first longitudinal axis, and is attached to the support part in such a manner as to be capable of fluctuating swinging about a second transverse axis in a direction intersecting the first longitudinal axis, An engagement recess is provided in the traveling body, the engagement recess being engageable with the operation lever which is operated to swing up and down about the second lateral axis to restrict rotation of the support portion about the first longitudinal axis, The operating lever includes a pivot portion provided at an end portion of the operating lever on a swing fulcrum side and along an axial direction of the second lateral axis, a grip portion provided at an end portion opposite to the swing fulcrum side, and an intermediate lever portion connecting the pivot portion and the grip portion; The intermediate lever portion of the operation lever is engaged with and disengaged from the engagement recess, thereby forming a lock mechanism capable of fixing and releasing the posture of the support portion with respect to the traveling body.
  2. 2. The paddy field working machine according to claim 1, wherein, The operation lever is fitted at a base end portion of the support portion on the opposite side of a tip end portion where the extension lever portion is provided.
  3. 3. The paddy field working machine according to claim 2, wherein, The locking mechanism is formed with a plurality of engaging recesses so as to engage with the operation lever at a plurality of positions in the longitudinal direction of the operation lever in the lateral operation posture.
  4. 4. A paddy field working machine according to claim 2 or 3, wherein, And a biasing spring for biasing the operation lever capable of swinging around the second horizontal axis to a side engaged with the engagement recess.
  5. 5. A paddy field working machine according to any one of claims 1 to 3, wherein, A wide portion near the rear of the driver seat and a narrow portion far from the front of the driver seat are formed in the driver pedal of the traveling machine body on the front side of the driver seat, The paddy field working machine is configured such that the first longitudinal axis of the marking marker is disposed laterally beside the narrow portion, and the support portion in the forward retracted position is located closer to a machine body center side than a width of the wide portion in a left-right direction.
  6. 6. A paddy field working machine according to any one of claims 1 to 3, wherein, An adjacent marker for using an adjacent row as a running index is provided at a lower position of a movement locus of the scribe marker around the first vertical axis on a lateral side of the body in front of the driver seat.
  7. 7. The paddy field working machine according to claim 6, wherein, The adjacent marker is supported by a mounting bracket for mounting the support portion to the traveling body, and is configured to be swingable laterally independently of the scribe marker about a second longitudinal axis different from the first longitudinal axis in a vertical direction.
  8. 8. The paddy field working machine according to claim 6, wherein, The adjacent marker is arranged to be pivotally connected to a plurality of positions located on the front side and on the rear side of the first longitudinal axis of the scribe marker.
  9. 9. A paddy field working machine according to any one of claims 1 to 3, wherein, A standby seedling carrying table is arranged on the left side and the right side of the travelling machine body in a standing way, A communication antenna is arranged on the upper part of the prepared seedling carrying table, The communication antenna is configured to be capable of being switched between a standing posture at a position higher than the top of the preliminary seedling placement table and a standing posture folded to be lower than the standing posture, The top of the extension rod of the scribe marker in the forward retracted position and the backward retracted position is located at a position lower than the top of the preliminary seedling placement table in a state where the communication antenna is in the lodging position.
  10. 10. The paddy field working machine according to claim 9, wherein, The stand for the prepared seedlings is provided with a support column which is erected on the left side and the right side of the traveling machine body, and a seedling planting table part which is supported by the support column, The seedling planting table part is provided with an assembling component which can fix and release the fixing relative to the upper and lower positions of the support column, A connecting bolt for connecting the assembly member and the support column at a plurality of positions is arranged, Fixing holes through which the connecting bolts can be inserted are formed at three or more positions of the stay in the up-down direction, The fixing holes are provided at equal intervals in the up-down direction of the stay.

Description

Paddy field working machine Technical Field The present invention relates to a paddy field working machine in which a driving seat is provided in a riding type traveling machine body, and a marker for forming a traveling target line for a back stroke on a farmland is provided at a machine body lateral side position in front of the driving seat. Background As described above, as a paddy field working machine including a marker for forming a travel target line for a back stroke on a farmland at a lateral side position of a machine body in front of a driving seat, there has been conventionally known a paddy field working machine as shown in patent literature 1, for example. In this paddy field working machine, the marker includes a support portion supported by the traveling machine body and an extension rod portion provided at a distal end portion of the support portion. The support portion is supported by the traveling body so as to be swingable about a longitudinal axis in the up-down direction, and the extension rod portion is supported so as to be swingable about a horizontal axis in the horizontal direction provided at a distal end portion of the support portion. In the paddy field working machine described in patent document 1, the support portion is extended laterally outward with respect to the traveling machine body, and the extension rod portion is horizontally positioned, so that the marker forms a traveling target line at a position away from the traveling machine body. Further, by standing the extension rod portion and rotating the support portion about the longitudinal axis toward the front side, the paddy field working machine can be folded relatively compactly and the entire paddy field working machine can be easily accommodated. However, with this configuration, when the body is turned with the support portion facing forward, a part of the scribe marker may come into contact with another object when turning at the ridge. In particular, if the length of the support portion is increased by shortening the extension rod portion in order to reduce the height of the entire marker when the marker is stored, there is a more significant risk of damaging workability in a narrow place. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2014-180227 Disclosure of Invention Problems to be solved by the invention The invention provides a paddy field working machine which can reduce the possibility that a part of a marking marker is contacted with other objects when a machine body turns, thereby being easy to perform turning with good operability even in a narrow place. Solution for solving the problem The paddy field working machine is characterized in that a driving seat is arranged on a riding type driving machine body, a scribing marker for forming a driving target line for a rear stroke on a farmland is arranged at a machine body lateral side part position in front of the driving seat, the scribing marker comprises a supporting part which is supported on the driving machine body in a manner of being capable of swinging left and right around a first vertical axis along the up-down direction, and an extension rod part which is supported in a manner of being capable of swinging up and down around a first horizontal axis along the horizontal direction and arranged at the top end part of the supporting part, and the supporting part is configured to be capable of being switched into a transverse working posture extending from the first vertical axis to the lateral outside of the driving machine body, a front storage posture extending from the first vertical axis to the front along the driving machine body and a rear storage posture extending from the first vertical axis to the rear of the driving machine body. According to the present invention, the support portion is configured to be capable of being switched to the forward stowage position and the rearward stowage position in addition to the lateral work position extending from the first longitudinal axis toward the lateral outside of the traveling machine body. Therefore, the desired travel target line in the lateral operation posture can be appropriately formed, and the marker can be stored in the front storage posture and the marker as a whole in a compact manner, and the marker can also be in the rear storage posture, so that the body can be easily turned while avoiding contact with another object. That is, since the body can be turned in a state in which the entire marker is housed substantially within the travel locus range of the front end portion of the travel body by making the support portion take the rearward retracted posture extending rearward of the travel body from the first longitudinal axis, contact with other objects is easily avoided, and a state in which workability is good is easily ensured even in a narrow place. In the above-described configuration, it is preferable that an operation leve