JP6299032B2 - Field leveling machine - Google Patents

Description

  The present invention relates to a field leveling machine used for leveling work in a field such as paddy fields.

  Conventionally, as this type of field leveling machine, a mounting frame is provided on the traveling machine body so that it can be moved up and down, a soil carrier is provided on the mounting frame so that it can be tilted backward, and a plowing member is provided so as to be held in a front-down manner by a holding mechanism. And the thing of the structure formed by arrange | positioning the resistance receiving part which rotates the front-end part of a plowing member downward is known.

Japanese Patent No. 4997132

  However, in the case of the conventional structure, the resistance receiving portion forcibly rotates the front end portion of the plowing member downward by contact with the soil on the field soil or the field scene to prevent the plowing member from being lifted. Since it is a structure that surely bites into the soil, it can cause the tip of the plow member to bite into the soil depending on the contact state between the soil on the field soil and the field and the plow member. There is an inconvenience that the field soil may be scraped off and introduced into the soil carrier by the plow member.

The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 is provided with a mounting frame that can be moved up and down on a traveling machine body, and a soil carrier on the mounting frame. Is provided so that it can be tilted backwards, and a holding mechanism is provided at the lower part of the mounting frame so that the plow member can be held in a front-lowered use position, and a compression mechanism capable of repressing the plow member at the use position is provided. the plow member is mounted for pulling up the non-use position via a non-use position of the substantially horizontal state from the use position, the repression mechanism of the plow member comprises a repression can spring member to said use position The plow member is provided so as to be able to be lifted up from the use position in the front-down state against the spring member to the non-use position in the substantially horizontal state , and the reverse state at the end of work from the non-use position in the substantially horizontal state the plow up to the non-use position of In field ground leveling machine characterized by comprising providing a detachment mechanism that allows free rotation by wood hand or external force.

As described above, according to the present invention, the mounting frame is provided on the traveling machine body so as to be movable up and down, the earth carrier is provided on the mounting frame so as to be able to tilt backward, and the holding mechanism is provided below the mounting frame. The plowing member is arranged to be freely held at the use position in the front-down direction, and is provided with a repression mechanism capable of repressing the plow member at the use position, and the plow member is in a non-use position in a substantially horizontal state from the use position. The spring mechanism includes a spring member capable of pressing the plow member to the use position, and the plow member has a front-lowering shape against the spring member . mounted for raising from the use position to the non-use position of the substantially horizontal state, and the free rotation due to hand or external force plow member from the non-use position of the substantially horizontal state to the non-use position of the inversion state at the end of work Provide an engaging / disengaging mechanism That because, it is possible to repression forced forward descending shaped use position the front end of the plow member, can be reliably infested bite into field soil plow member prevents lifting of the plow member, the The plow member is lifted from the use position in the front-down state against the spring member to the non-use position in the substantially horizontal state, and the engagement member is reversed from the non-use position in the almost horizontal state at the end of work. Free rotation by hand or external force is allowed to the non-use position of the state, and the soil removal by the plow member and the introduction work to the soil carrier can be performed reliably, and workability can be improved The structure of the repression mechanism can be simplified.

1 is an overall side view of an embodiment of the present invention. It is an expansion side sectional view of an example of an embodiment of the invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is a fragmentary perspective view of the example of an embodiment of the invention. It is a fragmentary top view of the example of an embodiment of the invention. It is a partial bottom view of the embodiment of the present invention. It is a partial expanded plane sectional view of an example of an embodiment of the invention. It is a fragmentary sectional side view of the example of an embodiment of the invention. It is a partial expanded plane sectional view of an example of an embodiment of the invention. It is a partial expanded side view of the embodiment of the present invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is a partial expanded side view of the embodiment of the present invention. It is a partial expanded side sectional view of an example of an embodiment of the invention. It is a partial expanded side view of the embodiment of the present invention. It is a partial expanded side sectional view of an example of an embodiment of the invention.

  1 to 16 show an embodiment of the present invention. Reference numeral 1 denotes a traveling machine body. In this case, a tractor is used as shown in FIG. Are connected.

  In this case, as shown in FIGS. 1 and 6, the connecting mechanism 2 includes a lower link 4 projecting from the lower part of the left and right sides of the traveling machine body 1, and a swing arm 5 projecting from the upper part of the left and right sides of the traveling machine body 1. The lifting link 6 connecting the swing arm 5 and the middle part of the lower link 4 and the upper link 7 projecting from the upper part of the traveling machine body 1 are configured. Are connected to the mounting frame 3 by connecting pins 8, 8, 8, and the mounting frame 3 can be moved up and down by a swing arm 5 that swings by hydraulic pressure.

  Reference numeral 9 denotes a holding mechanism. In this case, as shown in FIGS. 2 and 5, horizontal rods 3b and 3b are provided at the lower portions of the left and right vertical rods 3a and 3a of the mounting frame 3, and the vertical rods 3a and 3a. The side plates 3d and 3d are formed so as to protrude from the front portion of the front plate, and the horizontal frame 3c is installed between the upper portions of the side plates 3d and 3d so that the mounting frame 3 is formed in an L shape in a side view and a square frame shape in a rear view. 8 and 9, the support pin 11 is rotatably supported by the bearing 3e at the lower part of one side plate 3d, and the support pin 12 is freely rotated by the bearing 3f at the lower part of the other side plate 3d as shown in FIG. A bearing portion 10a that rotatably supports the spindle pin 11 is fixed to one end portion of the attachment body 10 having a triangular cross section, and a support pin 12 is inserted and fixed to the other end portion of the attachment body 10. The portion 10b is fixed, and the mounting body 10 is shaken by the left and right support shafts 11 and 12 and the bearings 3e and 3f. It pivots freely, the pin-shaped latching | locking part 9a is fixed to one bearing part 10a of the attachment body 10, the plowing member 13 is attached to the center part of the attachment body 10 at the front-lowering state, and the back surface right and left of the plowing member 13 Locking pieces 14, 14 are provided on both sides, and stopper bodies 3 g that can contact the rear portions of the locking pieces 14, 14 of the plowing member 13 are provided on the lower surface of the horizontal rods 3 b, 3 b of the mounting frame 3. The member 13 is configured to be able to hold and lift and rotate in a front-down manner.

  Reference numeral 15 denotes a soil carrier. In this case, as shown in FIGS. 1, 2, and 5, the soil carrier 15 has left and right side plates 17, a front plate 18, and a rear plate 19 standing on four sides of a rectangular bottom plate 16. The soil introduction port 20 is formed at a position facing the plowing member 13 of the front plate 18.

  2 and 7, two L-shaped reinforcing rods 21 are fixed to the outside of the front plate 18 and the bottom plate 16 of the soil carrying table 15, and the reinforcing rods 22 are spaced only from the bottom plate 16. The other reinforcing rods 23 are fixed to the left and right outer sides of the bottom plate 16, the horizontal rod 3b of the mounting frame 3 is disposed between the reinforcing rods 21 and 22, and the horizontal rod 3b and the reinforcing rods 21 and 22 are fixed. A pedestal shaft 24 is inserted through the pedestal shaft 24 and the soil carrier 15 is attached to the fulcrum shaft 24 so as to be tilted backward.

  Reference numeral 25 denotes a guide member. In this case, as shown in FIGS. 2 and 3, the guide member 25 is disposed and fixed between the left and right reinforcing rods 21 and 21 at the lower part of the soil introduction port portion 20 and matches the inclination angle of the plow member 13. A guide surface 25a is formed.

  Reference numeral 26 denotes a locking mechanism. In this case, as shown in FIGS. 2, 4, and 5, a hook-shaped locking arm 27 is pivotally attached to a horizontal bar 3c on the upper portion of the mounting frame 3 by a shaft 27b. A handle 27 a is projected from the stop arm 27, a locking portion 28 is formed on the upper portion of the soil carrying table 15, and the locking arm 27 and the locking portion 28 are releasably engaged with each other by a holding spring member 29. The engaged state is maintained.

  Reference numeral 30 denotes a pull-up mechanism. In this case, as shown in FIGS. 2, 3, 5, 7, and 8, an operating lever 32 is pivotally attached to one side plate 3d of the mounting frame 3 by a pivot shaft 31. As shown in FIG. 8, the pull-up arm 33 is fixed to the outer end portion of one of the support shaft pins 11, and is connected between the pull-up arm 33 and the operation lever 32 by the upper connecting pin 32a and the lower connecting pin 33a. The member 34 is erected and connected, the piece member 11a is fixed to the inner end portion of the one pivot pin 11, and a pressing portion 11b that can contact the locking portion 9a is formed on the piece member 11a. An engagement / disengagement mechanism 35 is formed by the portion 9a and the pressing portion 11b of the piece member 11a, and an upper limit stopper pin 32b and a lower limit stopper pin 32c of the operation lever 32 project from one side plate 3d, and the one side plate 3d and the operation lever 32, a position retaining spring member 36 is installed between As shown in FIG. 2, when the operating lever 32 is rotated downward about the pivot shaft 31, the plow member 13 is caused by its own weight with the pivot pins 11 and 12 as the center, as shown in FIGS. The pressing portion 11b of the piece member 11a abuts against the locking portion 9a while rotating downward, and the plow member 13 is disposed at the use position a in the front-down direction, and as shown by the imaginary line position in FIG. When the lever 32 is pivoted upward about the pivot shaft 31 and the connecting member 34 is pulled up, the engaging portion 9a is pressed by the pressing portion 11b of the piece member 11a of the engagement / disengagement mechanism 35 as shown in FIG. The member 13 is pulled up to the non-use position b in the substantially horizontal state, and as shown in FIG. 16, the plowing member 13 is moved from the non-use position b in the substantially horizontal state to the non-use position in the inverted state at the end of the work. c is allowed to rotate freely up to c. That is, irrespective of the operation of the connecting member 34, the support pins 11 and 12 are moved by hand or external force from the use position a to the non-use position b and the non-use position c in the inverted state at the end of the work. It can be freely rotated upward as a center.

  Reference numeral 37 denotes an elastic mechanism. As shown in FIGS. 3, 5, 8, 9, 10, 11, 13, and 15, the bifurcated swinging member 37a is attached to the other spindle pin 12. The base is fixed, the spring hook pin 37b is provided at the tip of the swing member 37a, the spring hook pin 37c is provided on the other side plate 3d, and the spring member 38 is hooked between the spring hook pin 37b and the spring hook pin 37c. The swinging member 37a is formed with a fitting / removing hole 37d, the side plate 3d is formed with an extraction / removal hole 3h, and a stopper pin 37e is removably provided in the extraction / removal hole 3h, and the side plate 3d is provided with a stopper pin 37f. 11 and 12, the swinging member 37a is swung clockwise around the support shaft pin 12 by the spring member 38, and the plowing member 13 is elastically pressed to the use position a. The locking pieces 14 and 14 are in contact with the stopper body 3g, When the operating lever 32 is pivoted upward about the pivot shaft 31, the locking portion 9a is pressed by the pressing portion 11b of the piece member 11a of the engagement / disengagement mechanism 35 so that the plow member 13 is in a substantially horizontal non-use position. As shown in FIGS. 13 and 14, the swing member 37a swings clockwise around the support shaft pin 12 against the spring member 38, and the swing member 37a contacts the stopper pin 37e. The plowing member 13 is held at the non-use position b, and the plowing member 13 can be freely moved from the non-use position b to the non-use position c in the inverted state at the end of the operation around the support pins 11 and 12 by hand or external force. , The swinging member 37a swings clockwise around the support shaft pin 12 against the spring member 38, and the stopper pin 37e is removed from the removal hole 3h. As described above, the swinging member 37a is a spring. It swings clockwise around the spindle pin 12 against the material 38, and the stopper pin 37e is inserted into the fitting / removing hole 37d and the withdrawal hole 3h, and the swinging member 37a is provided with the stopper pin 37f. The plowing member 13 is held at the non-use position c.

  Since this embodiment is configured as described above, as shown in FIG. 1, the plowing member 13 is held at the forward and downward use position “a”, and the traveling machine body 1 is moved forward to plow the soil in the high field scene M. The scraped soil is scraped off by the member 13 and introduced into the soil transport table 15 by the scraper member 13, and the scraper member 13 is pulled to the non-use position b by the operation lever 32 of the lifting mechanism 30 at a low place in the farm scene M. In the high place of the farm scene M, the plowing member 13 is turned downward to the forward and downward use position a by the operating lever 32, and the high place soil is scraped off by the plowing member 13 in the use position a. The soil is introduced and guided into the soil carrier 15 by the plowing member 13, the operation of the operation lever 32 is repeated, the traveling machine body 1 is moved to a lower position in the field M, and the worker is artificially locked at that position. The mechanism 26 is released, and is shown by the one-dot chain line in FIG. As described above, the soil carrier 15 is tilted backward by its own weight with the fulcrum shaft 24 as the center, the soil in the soil carrier 15 is discharged to a low place in the field scene M, and this work is repeated to perform the leveling work of the field M. It will be.

  At this time, since a pressing mechanism 37 capable of pressing the plowing member 13 at the use position a is provided, the front end portion of the plowing member 13 can be forcibly pressed down to the use position a in the front-down state. The member 13 can be prevented from being lifted up, and the member 13 can be surely bitten into the soil in the field M soil, and the field M soil can be cut and introduced into the soil carrying table by the plow member reliably. Workability can be improved.

  Further, in this case, since the elastic mechanism 37 includes a spring member 38 that can elastically press the plow member 13 at the use position a, the structure of the elastic mechanism 37 can be simplified. As the lifting mechanism 30, the operation lever 32 is pivotally mounted on the upper portion of the mounting frame 3, and a connecting member 34 is provided between the operation lever 32 and the plow member 13. The structure of the mechanism 30 can be simplified.

  The present invention is not limited to the above-described embodiment. For example, the lifting mechanism 30 including the operation lever 32 or the like does not exist, and the plow member 13 is used in a state of being lowered forward by its own weight on the mounting frame 3. It can also be applied to a structure that is held at a position a and can swing up and swing from the use position a to the non-use position b and from the non-use position b to the non-use position c. The structure and the like of 37 are appropriately changed and designed.

  As described above, the intended purpose can be sufficiently achieved.

a use position b non-use position c non-use position 1 traveling machine body 3 mounting frame 9 holding mechanism 13 plowing member 15 soil carrying platform 35 engagement / disengagement mechanism 37 repression mechanism 38 spring member

Claims (1)

A mounting frame is provided on the traveling machine body so that it can move up and down, and a soil carrier is provided on the mounting frame so that it can be tilted backwards. And a compression mechanism capable of repressing the plow member at the use position . The plow member is provided so as to be freely lifted from the use position to a non-use position via a non-use position in a substantially horizontal state. The mechanism includes a spring member capable of repressing the plow member at the use position, and the plow member is provided so as to be able to be lifted up from a front-lowering use position to a substantially horizontal non-use position against the spring member. And an engagement / disengagement mechanism that allows free rotation by a hand or external force of the plow member from the non-use position in the substantially horizontal state to the non-use position in the inverted state at the end of work. Field leveling machine.