JP2007089451A - Mounting structure of auxiliary step of paddy field working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the mounting structure of an auxiliary step of a paddy field working machine, which increases stability by stabilizing the working position of an operator in a seedling supply operation in a paddy field working machine and with which an operator is hardly exhausted even in operation for many hours and a mounting structure which constitutes such an auxiliary step in the most suitable form at a low cost and has additional functions. <P>SOLUTION: The mounting structure of the auxiliary step 17 of a paddy field working machine is equipped with a rising part C standing from the front part side toward the rear part side at the right and left lateral part of the floor 8 and with the auxiliary step 17 having a horizontal plane 18 on which an operator places their feet so as to project the auxiliary step from the rising part C to the front part side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for attaching an auxiliary step of a paddy field work machine.

  In general, a paddy work machine is provided with a driver's seat substantially in the center of the floor, and a boarding step is provided on the left and right lateral sides of the floor in the front-rear direction. The boarding step serves as a platform for the operator to get into the driver's seat, but may be used as a platform.

  Generally, the boarding step of the paddy field machine is composed of a main step, a rear step, and an upright part. Here, the upright part is a part that rises from the front side (bonnet side) to the rear side (seedling device side) of the paddy field work machine, and is formed as, for example, an inclined part having a flat surface or a curved surface. By this upright part, the main step and the rear step having different height positions are continuously joined.

  By the way, when it becomes necessary to replenish seedlings during operation of the paddy field work machine, the operator needs to set the seedlings prepared in advance in front of the main step in a seedling planting device behind the paddy field work machine. . Therefore, the worker needs to move from the driver's seat to the front of the main step, lift the seedling there, and directly move from the main step to the upright portion and move to the vicinity of the seedling planting device behind the rear step. Moreover, when it becomes necessary to replenish the fertilizer to the fertilizer applied to the rear part of the paddy field machine, the operator needs to perform the same operation.

  However, since the upright part is formed so as to cover the rear wheel of the paddy field work machine, the upright part often has a large inclination angle with respect to the main step, so that the operator can easily get on the upright part. For this reason, in the prior art, there is an anti-slip unevenness formed on the curved surface portion of the upright portion (see, for example, Patent Document 1).

  In the paddy field machine of patent document 1, in the standing part provided so that the main step and rear step from which height differs may be connected, the surface of the standing part is formed in a curved surface shape, and unevenness | corrugation is formed in the said curved surface part in steps Is formed. The worker can stabilize the working posture by hooking the shoe sole on the unevenness.

  In addition, in order to stabilize the posture when an operator is placed on the erected portion, there is a case where a protrusion for footrest is provided on the surface of the erected portion (see, for example, Patent Document 2).

  The paddy field machine of patent document 2 forms the surface of an upright part in the shape of a curved surface, and has provided a pair of protrusions for footrests in the front and rear direction of the paddy field machine on the curved surface part. The worker can ensure the stability of the working posture by stepping on the pair of footrest projections when placing on the upright portion.

Japanese Patent Laid-Open No. 11-13 (FIG. 4) Japanese Patent Laid-Open No. 11-266623 (FIG. 3)

  However, as in the case of the paddy field machine in Patent Document 1, the configuration in which irregularities are only formed on the curved surface portion of the upright portion can temporarily stabilize the posture of the worker, but maintains it for a long time. It was difficult to do. The reason is that the pair of irregularities described in Patent Document 1 was formed directly on the curved surface portion of the upright portion across the front-rear direction of the paddy field machine, even if an anti-slip effect was obtained. This is because the inclination of the upright portion is still steep, and the height position where the operator puts both feet is inevitably different, so that the operator cannot apply weight evenly. For this reason, with the paddy field machine of patent document 1, it was still difficult to work for a long time.

  Moreover, also about the paddy field machine of patent document 2, since the protrusion for legrest was directly formed in the curved surface part of the upright part, the inclination of the upright part still exists, Therefore For the same reason as the paddy field machine, it was difficult for the worker to maintain the posture for a long time.

  Therefore, the present invention has been made in view of the above-mentioned problems, and the object of the present invention is to stabilize the worker's working posture in the seedling replenishment work and the fertilizer replenishment work in the paddy field work machine. It is another object of the present invention to provide an attachment structure for an auxiliary step of a paddy field work machine that can be made to be hard to get tired even after working for a long time. It is another object of the present invention to provide an attachment structure that can form such an auxiliary step in an optimum shape at a low cost and also has an additional function.

  The feature structure of the auxiliary step mounting structure of the paddy field working machine according to the present invention is provided on the right and left lateral sides of the floor with a rising portion that rises from the front side toward the rear side, and a horizontal plane on which an operator places his / her foot The auxiliary step which has is attached to the front part side so that it may protrude from the standing part.

  In the structure for attaching the auxiliary step of the paddy field machine in this configuration, the auxiliary step is attached to the upper part of the floor of the paddy field machine so as to protrude to the front side. When the work is moved from the rear to the rear, the physical burden on the operator can be reduced by placing the foot on the auxiliary step. Thereby, an operator's work efficiency improves.

  In the attachment structure of the auxiliary step of the paddy field working machine of the present invention, the auxiliary step can be attached to the uppermost part of the upright portion.

  In the paddy field machine auxiliary step mounting structure of this configuration, since the auxiliary step is attached to the top of the upright part of the floor of the paddy field machine, the upper surface of the floor extending from the vertical part to the rear side and the horizontal surface of the auxiliary step And the height becomes closer. For this reason, the burden on the operator is reduced, and the work can be performed for a long time with a more stable posture.

  In the attachment structure of the auxiliary step of the paddy field working machine of the present invention, it is also possible to provide a space open to the front side below the auxiliary step.

  In the auxiliary step mounting structure of the paddy field machine of this configuration, a space opened to the front side is provided below the auxiliary step, so that the operator can step into this space to stabilize his body, Work can be carried out easily. Therefore, the physical burden on the worker is reduced, and the work efficiency is improved.

  In the structure for attaching an auxiliary step of a paddy field machine according to the present invention, the auxiliary step can be manufactured by blow molding.

  In the paddy field work machine's auxiliary step mounting structure with this configuration, the auxiliary step is manufactured by blow molding, so the weight of the auxiliary step can be reduced, and the shape can be optimized according to the paddy field machine type at a relatively low cost. can do.

  In the padding field machine auxiliary step mounting structure according to the present invention, the auxiliary step can be provided with a lid that can be opened and closed.

  In the auxiliary step mounting structure of the paddy field machine of this configuration, the lid that can be opened and closed is provided on the blow-molded auxiliary step, so that it can also function as a storage box using the internal space. .

  Next, the embodiment regarding the attachment structure of the auxiliary step of the paddy field machine of this invention is described based on drawing. In addition, embodiment described below illustrates the attachment structure of the auxiliary step of the paddy field machine of this invention, Comprising: This invention is not intended to be limited to these.

  FIG. 1 is an overall side view of a paddy field working machine 100 having a mounting structure for an auxiliary step 17 according to the present invention. FIG. 2 is an overall plan view of the paddy field working machine 100 shown in FIG. 1.

  In a paddy field working machine 100 according to this embodiment, a seedling planting device 2 is connected to a rear portion of a self-propelled machine 1 configured in a riding type through a hydraulic cylinder 3 and a link mechanism 4 so as to be movable up and down.

  The self-propelled aircraft 1 is configured in an all-wheel drive (AWD) type in which traveling power from a driving unit 5 disposed at a front portion thereof is transmitted to left and right front wheels 6 and rear wheels 7. The upper surface of the self-propelled machine 1 is configured as a floor 8a of the paddy field working machine 100, and a steering wheel 9 and a driver seat 10 linked to the left and right front wheels 6 so as to be steerable are provided at the center of the floor 8a. A boarding operation unit 15 is formed.

  On both the left and right sides of the boarding operation unit 15, auxiliary floors 8 b that are used when the operator moves from the driver seat 10 to the rear part of the self-propelled aircraft 1 are provided. And the boarding / alighting step 16 used when an operator boards / alights is attached to the side part of the auxiliary floor 8b. In this specification, the floor 8a and the auxiliary floor 8b may be collectively referred to simply as the floor 8.

  The floor 8 includes a main step A, a rear step B, and an upright portion C that continuously joins the main step A and the rear step B, as in the conventional case.

  The main step A is used as a boarding step when an operator gets into the boarding operation unit 11 or as a work space for carrying out work such as transporting seedlings to the seedling planting device 2.

  The rear step B is used as a work table for an operator to put on and actually set a seedling. Moreover, since the fertilizer 30 is provided in the rear upper part of the driver's seat 10, this rear step B can also be utilized for the fertilizer supply work.

  The upright portion C is used as a stepping platform on which an operator puts his foot when moving from the main step A to the rear step B, but also has a role as a mudguard for the rear wheel 7. For this reason, the upright part C is shaped to cover the rear wheel 7, and the upper surface is an inclined part having a slightly curved surface. Therefore, the rising portion C has a large inclination angle with respect to the main step A.

  Next, the auxiliary step 17 of the paddy field working machine 100 of the present invention will be described, but before that, the configuration of the boarding operation unit 15 will be briefly described.

  FIG. 3 is a perspective view showing the vicinity of the boarding operation unit 15. FIG. 4 is a front view showing a part near the lower portion of the driver's seat 10 of the boarding driver 15. FIG. 5 is a partially cutaway side view of the vicinity of the lower portion of the driver's seat 10 shown in FIG.

  An operation lever 11 for operating the seedling planting device 2 is provided in the vicinity of the driver seat 10. The operation lever 11 is erected from the lever guide 12. Further, the side surface portion of the lever guide 12 is formed in a plane inclined toward the driver's seat 10 as shown in FIG. 4, and a label 13 for indicating the lever position is stuck on this plane. For example, as shown in FIG. 8 to be described later, the label 13 includes a “planting” position for performing seedling planting work, an “up” and “down” position for raising and lowering the seedling planting device 2, and a seedling planting device. An “N” position and an “automatic” position are provided to keep 2 in the neutral position. Since the label 13 faces the driver's seat 10 side, the operator can easily confirm the position of the operation lever 11.

  A storage case 14 is provided below the driver seat 10. The storage case 14 can be formed integrally with the base of the driver seat 10 by blow molding or the like. The storage case 14 can be used as, for example, a cup holder for placing a cup or a tool case for storing a frequently used tool. At this time, it is preferable that the opening of the storage case 14 is inclined slightly forward as shown in FIG. 5 so that the operator can easily take out the stored items. The storage case 14 may be a fixed type as illustrated in FIG. 3, but may be configured to be movable so that the storage case 14 can be pulled out in front of the driver seat 10, for example. If such a movable storage case 14 is used, even if an object having a small size with respect to the depth of the storage case 14 is stored, it can be easily removed by pulling the storage case 14 forward. The convenience will be further improved.

  As described above, by providing the storage case 14 below the driver's seat 10, the operator can replenish water or take out tools while sitting on the driver's seat 10, Convenience is improved. In addition, since the storage case 14 can be provided at an inconspicuous position below the driver's seat 10, the design of the paddy field work machine 100 is not impaired, and there is an advantage that it has a clean appearance. Furthermore, since the storage case 14 can be integrally formed with the pedestal of the driver's seat 10 by blow molding or the like, the pedestal and the storage case 14 are formed at the same time, and a new process is added in the manufacture of the paddy field work machine 100. There is no need to do. Therefore, such a storage case 14 can be manufactured without cost.

  Next, the details of the auxiliary step 17 will be described. FIG. 6 is a cross-sectional view of the auxiliary step 17 and the upright part C showing how the auxiliary step 17 of the paddy field working machine 100 of the present invention is attached to the upright part C of the floor 8. FIG. 7 is a partial cross-sectional side view showing the entire floor with the auxiliary step 17 attached to the upright portion C. FIG. FIG. 8 is a plan view showing a part of the floor in a state where the auxiliary step 17 is attached to the upright part C. FIG. In FIG. 8, a part of the auxiliary step 17 is not shown in order to explain the internal configuration.

  As can be seen from FIGS. 7 and 8, the auxiliary step 17 is attached to a rising portion C that rises from the front side to the rear side provided on the left and right side portions of the floor 8. The auxiliary step 17 is configured to protrude to the front side of the paddy field work machine 100. The reason for providing the auxiliary step 17 is mainly to stably support the worker who is working. Therefore, the upper surface of the auxiliary step 17 is configured as a horizontal surface 18 on which the operator's feet are placed. The horizontal surface 18 is provided with ribs 19 for preventing slipping as necessary.

  Further, the auxiliary step 17 needs to have sufficient strength and be firmly attached to the raised portion C of the floor 8. Therefore, the auxiliary step 17 is preferably made of a hard resin such as an acrylic resin, a vinyl chloride resin, an ABS resin, or a polycarbonate resin. Since the hard resin is relatively resistant to corrosion, it is suitable as a material for the auxiliary step 17 that is frequently exposed to moisture and oil. The auxiliary step 17 can of course be made of another material that is strong, resistant to corrosion to some extent, is lightweight, and can be easily processed, for example, a metal material such as an aluminum alloy. When the auxiliary step 17 is produced from a hard resin, it can be produced, for example, by blow molding. By using blow molding, the auxiliary step 17 can be reduced in weight, and can be made into an optimum shape according to the model of the paddy field work machine 100 at a relatively low cost.

  In the present invention, the auxiliary step 17 is attached to the frame 20 passing through the rising portion C of the floor 8 in order to increase the attachment strength of the auxiliary step 17. A specific method of attaching the auxiliary step 17 is shown in detail in FIG.

  In the auxiliary step 17, two screw portions 25a and 25b for external fixing are insert-molded. A hook-shaped locking tool 21 is attached to one screw part 25a by a bolt 24a. And this latching tool 21 is hooked firmly so that it may wrap around with respect to the flame | frame 20 from the downward direction.

  The other screw portion 25 b is also attached to the frame 20 through the reinforcing member 22. A plurality of auxiliary members 22 (three in FIG. 8) are arranged in parallel with respect to the longitudinal direction of the floor 8, and the ends of the auxiliary members 22 are directly attached to the frame 20 by welding or bonding. Between the reinforcing members 22, there are installed mounting stays 23 having engaging portions 23 a whose both ends engage with the reinforcing members 22 on both sides. The auxiliary step 17 and the reinforcing member 22 are firmly coupled by passing the bolt 24b through the mounting stay 23 and the threaded portion 25b and fastening them. As a result, the auxiliary step 17 is connected via the reinforcing member 22. Is firmly attached to the frame 20.

  As described above, the auxiliary step 17 of the present invention is supported at two points on the frame 20 by the screw portions 25a and 25b and the bolts 24a and 24b, so that a sufficient mounting strength is ensured. In this way, in the present invention, the auxiliary step 17 is firmly attached to the rising portion C of the floor 8 of the paddy field work machine 100 so as to protrude to the front side. When the work is performed while moving from the rear side to the rear side, the physical burden on the operator can be reduced by placing the foot on the auxiliary step 17. Thereby, work efficiency, such as a seedling box setting operation and a fertilizer replenishment operation, is improved.

  The position where the auxiliary step 17 is attached may be any height position of the frame 20 passing through the upright portion C, but is preferably provided at the top of the upright portion C as shown in FIG. By adopting such an attachment mode, the height of the upper surface of the floor 8 (rear step B) extending from the upright portion C to the rear side and the horizontal surface 18 of the auxiliary step 17 are close, so that the burden on the operator is reduced. The work can be performed for a long time with a more stable posture.

  Further, it is desirable that the auxiliary step 17 has a size that does not hinder the operator from getting on the driver's seat 10. Specifically, as shown in FIG. 2, it is desirable that the end portion of the auxiliary step 17 is positioned slightly rearward of the paddy field work machine 100 from just beside the front end portion of the driver seat 10.

  By the way, a space D that opens to the front side of the paddy field work machine 100 can be provided below the auxiliary step 17 as shown in FIG. In order to provide such a space D, when the auxiliary step 17 is blow-molded, a protrusion having an appropriate size may be provided in advance at a position corresponding to the space D inside the mold. Alternatively, after forming the auxiliary step 17, thermal processing or press processing may be performed at a position where the space D is to be provided.

  As described above, if the space D opened to the front side of the paddy field work machine 100 is provided below the auxiliary step 17, the worker can step into the space D to stabilize his body and perform various operations. Can be easily implemented. Therefore, the physical burden on the worker is reduced, and the work efficiency is improved.

[Another embodiment]
(1) In addition to using the auxiliary step 17 for its original purpose, it is also desired to add an additional function. As an example, the auxiliary step 17 may be provided with a lid portion 26 that can be opened and closed as shown in FIG. In particular, when the auxiliary step 17 is a hard resin hollow body manufactured by blow molding, the internal space can be used as a storage box. Here, the lid 26 is preferably provided on the horizontal surface 18 (top plate) of the auxiliary step 17. If such a lid portion 26 is provided on the horizontal surface 18 of the auxiliary step 17, the operator can easily take in and out things from the floor 8, which is convenient. Further, the lid 26 is not limited to the hinge type as shown in FIG. By adopting an optimal opening / closing mechanism for the lid portion 26 according to the attachment position of the auxiliary step 17 with respect to the upright portion C, the convenience of the operator is further improved.

(2) As shown in FIG. 11, a frame member 27 may be provided. The frame member 27 is made of, for example, a resin or metal pipe, and can be arranged in an L shape from the rear end portion to the outer end portion of the rear step B. However, it may be possible that the frame member interferes with the fertilizer replenishment work to the fertilizer application apparatus 30, so it is desirable that the frame member 27 be removable.

  The attachment structure of the auxiliary step 17 of the paddy field working machine 100 of the present invention can be applied to various uses other than the paddy field working machine. For example, it can be used as a platform for loading articles at a relatively high position such as a truck bed.

The whole side view of the paddy field machine which has the attachment structure of the auxiliary step of this invention Overall plan view of the paddy field machine shown in FIG. The perspective view which showed the boarding operation part vicinity of a paddy field work machine Front view showing a part near the lower part of the driver's seat of the boarding driver Partially cutaway side view near the bottom of the driver seat shown in FIG. Cross-sectional view of the auxiliary step and the upper part showing how to attach the auxiliary step of the paddy field work machine of the present invention to the upper part of the floor Partial cross-sectional side view showing the entire floor with the auxiliary step attached to the upright The top view which showed a part of the floor in the state where the auxiliary step was attached to the upright part The perspective view of the auxiliary step which provided the space opened to the front side of a paddy field machine Perspective view of auxiliary step with lid that can be opened and closed Partial perspective view of paddy field work machine provided with frame member

Explanation of symbols

8 Floor 17 Auxiliary step 18 Horizontal surface 26 Lid

Claims (5)

  The left and right lateral sides of the floor are provided with an upright portion that rises from the front side toward the rear side, and an auxiliary step having a horizontal surface on which an operator places his / her feet is projected from the upright portion to the front side. Attached structure of auxiliary step of paddy field work machine attached to.   The attachment structure of the auxiliary step of the paddy field working machine according to claim 1, wherein the auxiliary step is attached to the uppermost part of the upright portion.   The attachment structure of the auxiliary step of the paddy field working machine according to claim 1 or 2, wherein a space that opens to the front portion side is provided below the auxiliary step.   The attachment structure of the auxiliary step of the paddy field machine according to any one of claims 1 to 3, wherein the auxiliary step is manufactured by blow molding.   The attachment structure of the auxiliary step of the paddy field machine according to claim 4, wherein the auxiliary step is provided with a lid that can be opened and closed.

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