JP2011168068A - Auxiliary lug device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auxiliary lug device allowing not only usage by being mounted on various kinds of rear wheels but also optional setting of the sizes of auxiliary lugs. <P>SOLUTION: The auxiliary lug device 14 is used by being mounted on the rear wheel 6 for a riding type rice transplanter. The auxiliary lug device includes the auxiliary lugs 15 arranged in parallel inside blade rugs 13 in a side view and a mounting member 16 for mounting the auxiliary lugs 15 on a spoke 11. The mounting member 16 includes a spoke mounting part 16a mounted on the spoke 11 and an auxiliary lug mounting part 16b capable of attachably/detachably mounting the auxiliary lugs 15. The auxiliary lug mounting part 16b supports the auxiliary lugs 15 via a rotary spindle 17 arranged in an inclined state to be orthogonal to the blade lugs 13 in a side view, and changes the auxiliary lugs 15 into use attitudes projecting to the outside of a wheel part 12 and stored attitudes stored inside the wheel part 12 based on rotation along the blade lugs 13. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an auxiliary lug device used by being attached to a rear wheel for a riding type rice transplanter.

  A rear wheel for a riding type rice transplanter includes a plurality of spokes extending in a radial direction from a hub to support a wheel portion, and a plurality of blade lugs (rubber lugs) projecting in an inclined manner in a side view of the wheel portion. ) Are known. In such a rear wheel, since the sinking of the wheel part is suppressed by the blade lug, it is possible to ensure good running performance even in a relatively weak field, but a large load acts on the rear wheel. The blade lugs may be deformed and not function when over the heel. In this case, the rear wheel may sink into the soil and slip, making it difficult to escape.

  Therefore, an auxiliary lug that is attached to a rear wheel for a riding type rice transplanter has been proposed. For example, the auxiliary lug (scraping member) shown in Patent Document 1 is configured to be capable of rotating and changing into a use posture protruding outward from the spoke and a storage posture along the spoke.

JP 2001-253202 A

  However, since the auxiliary lug shown in Patent Document 1 rotates in the radial direction in a side view, the auxiliary lug may interfere with the existing blade lug in the rear wheel provided with the blade lug. There is a problem that it is difficult to attach the auxiliary lug depending on the type of the ring, and the size of the auxiliary lug is limited.

  The present invention has been created for the purpose of solving these problems in view of the above circumstances, and includes a plurality of spokes that extend in a radial direction from a hub to support a wheel portion, and a side of the wheel portion. Auxiliary lug device that is used by being attached to the rear wheel for a riding type rice transplanter provided with a plurality of blade lugs protruding obliquely in side view at the part, and in parallel with the inside of the blade lug in side view An auxiliary lug disposed; and an attachment member for attaching the auxiliary lug to the spoke, the attachment member comprising a spoke attachment portion attached to the spoke, and an auxiliary lug attachment portion capable of detachably attaching the auxiliary lug The auxiliary lug mounting portion supports the auxiliary lug via a rotation support shaft that is inclined so as to be orthogonal to the blade lug in a side view, and the auxiliary lug is rotated along the blade lug. Based on the movement, it protrudes outward from the wheel And use position, characterized by being capable Hensugata into a retracted position to be housed inside the wheel unit.

  According to the invention of claim 1, since the auxiliary lug is transformed into the use posture and the storage posture based on the rotation along the blade lug, there is no possibility of interfering with the blade lug. Not only can it be attached to the rear wheel for use, but the size of the auxiliary lug can be arbitrarily set. In addition, the auxiliary lug is configured separately from the attachment member attached to the spoke and is detachably attached to the attachment member, so it can be replaced with an auxiliary lug of an appropriate shape according to the inclination and soil quality when crossing the fence. There is also an advantage of being able to do it.

It is a whole side view of a riding type rice transplanter. (A) is a front view of an auxiliary lug device, and (B) is a side view of the auxiliary lug device. It is a principal part side view of the rear wheel which shows the use condition of an auxiliary | assistant lug. It is a principal part side view of the rear wheel which shows the accommodation state of an auxiliary | assistant lug. It is a principal part front view of the rear wheel which shows the use condition and storage state of an auxiliary | assistant lug.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling machine body of a riding type rice transplanter. The traveling machine body 1 includes an engine mounting unit 2 on which an engine is mounted, a transmission case 3 for shifting engine power, an operation unit 4 on which an operator gets on, A riding-type four-wheel vehicle including a front wheel 5 that also serves as a steering wheel and a driving wheel, a rear wheel 6 that is a driving wheel, and the like, and a planting work machine 8 is connected to the rear part of the machine body via a lifting link mechanism 7. Yes.

  The rear wheel 6 includes a hub 10 that is externally connected to the rear axle 9, a plurality of spokes 11 that extend radially from the hub 10, and a wheel portion 12 that is supported at the tip of the spoke 11, A plurality of blade lugs (rubber lugs) 13 are provided on the side of the wheel portion 12 so as to project in an inclined manner when viewed from the side. Such a rear wheel 6 is able to ensure good running performance even in a relatively soft field because the sinking of the wheel portion 12 is suppressed by the blade lug 13. The blade lug 13 may be deformed and not function when, for example, it exceeds the ridge where the load acts. In this case, the rear wheel 6 may sink into the soil and slip, making it difficult to escape.

  The auxiliary lug device 14 according to the embodiment of the present invention can avoid the above situation by being attached to the rear wheel 6. Hereinafter, the auxiliary | assistant lug apparatus 14 which concerns on embodiment of this invention is demonstrated with reference to FIGS.

  The auxiliary lug device 14 is configured to include an auxiliary lug 15 arranged in parallel inside the blade lug 13 in a side view and an attachment member 16 for attaching the auxiliary lug 15 to the spoke 11. The attachment member 16 includes a spoke attachment portion 16a attached to the spoke 11, and an auxiliary lug attachment portion 16b to which the auxiliary lug 15 can be detachably attached. The auxiliary lug attachment portion 16b is a blade lug in a side view. The auxiliary lug 15 is supported via a rotation support shaft 17 that is disposed so as to be inclined so as to be orthogonal to 13, and the auxiliary lug 15 is outside the wheel portion 12 based on the rotation along the blade lug 13. It is possible to change into a use posture projecting in the direction and a storage posture stored inside the wheel portion 12.

  Specifically, the auxiliary lug 15 is made of a substantially square metal plate. A rotating support shaft 17 facing the upright direction is integrally welded to one end of the inner side surface of the auxiliary lug 15. Further, a round bar 18 for restricting the rotation of the auxiliary lug 15 in the use posture is integrally welded to the central portion of the inner side surface of the auxiliary lug 15 along the inner side surface.

  The attachment member 16 includes a bracket 19 and a fixed plate 20. The bracket 19 has a concave portion 19a into which the spoke 11 enters. The fixing member 20 is fixed to the bracket 19 in a superposed state with the spoke 11 entering therein, whereby the attachment member 16 is attached to the spoke 11. That is, the spoke attachment portion 16 a described above is composed of the peripheral portion of the recess 19 a of the bracket 19 and the fixing plate 20. The radial attachment position of the attachment member 16 with respect to the spoke 11 is defined by one end portion of the bracket 19 coming into contact with the step portion 11 a of the spoke 11.

  The bracket 19 includes a pair of shaft support pieces 19b that protrude outward with a predetermined interval. Each shaft support piece 19b is formed with a shaft support hole 19c through which the rotation support shaft 17 can pass and which rotatably supports the rotation support shaft 17. That is, the auxiliary lug mounting portion 16b described above is composed of a pair of shaft support pieces 19b.

  Next, a method for using the auxiliary lug device 14 will be described.

  First, the bracket 19 and the fixing plate 20 constituting the attachment member 16 are attached to the spoke 11. This attachment is performed by fixing the fixing plate 20 to the bracket 19 in a superposed state with the spoke 11 inserted into the recess 19 a of the bracket 19. At this time, the attachment position of the attachment member 16 in the radial direction with respect to the spoke 11 is defined by one end portion of the bracket 19 coming into contact with the step portion 11 a of the spoke 11.

  Next, the auxiliary lug 15 is attached to the attachment member 16. In this mounting, the pivot support shaft 17 projecting from the auxiliary lug 15 is inserted into the shaft support hole 19c of the pair of shaft support pieces 19b provided in the bracket 19 from the outer peripheral side of the rear wheel 6 in a penetrating manner. This is done by screwing the nut 21 onto the tip of the pivot shaft 17.

  During normal work that does not go over the eaves, the auxiliary lug 15 may be in the way, so the auxiliary lug 15 is held in the stowed position. At this time, as shown in FIGS. 4 and 5, the auxiliary lug 15 is accommodated so as to be positioned between the spokes 11 in a side view and to be within the left-right width of the blade lug 13 in a front view.

  When crossing the heel, the auxiliary lug 15 is turned from the storage position to the use position. This turning deformation is performed by loosening the nut 21 and turning the auxiliary lug 15 outward about the turning support shaft 17 as a fulcrum. At this time, since the auxiliary lug 15 rotates along the blade lug 13, there is no possibility of interfering with the blade lug 13. As a result, the auxiliary lug 15 can be arbitrarily set in size as well as attached to various types of rear wheels 6 for use. Note that the auxiliary lug 15 in the use posture is configured to maintain the use posture when the round bar 18 abuts on the shaft support piece 19 b of the bracket 19.

  Further, the auxiliary lug 15 is configured separately from the attachment member attached to the spoke 11 and is detachably attached to the attachment member 16, so that the auxiliary lug 15 has an appropriate shape depending on the inclination, soil quality, etc. It is also possible to replace the lug 15.

  According to the present embodiment configured as described, the plurality of spokes 11 extending in the radial direction from the hub 10 and supporting the wheel portion 12 and the side portions of the wheel portion 12 project in an inclined manner in a side view. An auxiliary lug device 14 that is used by being attached to a rear wheel 6 for a riding type rice transplanter that includes a plurality of blade lugs 13, and an auxiliary lug 15 that is arranged in parallel inside the blade lugs 13 in a side view; And an attachment member 16 for attaching the auxiliary lug 15 to the spoke 11. The attachment member 16 includes a spoke attachment portion 16a attached to the spoke 11, and an auxiliary lug attachment portion to which the auxiliary lug 15 can be detachably attached. 16b, and the auxiliary lug mounting portion 16b supports the auxiliary lug 15 via a rotation support shaft 17 that is disposed in an inclined manner so as to be orthogonal to the blade lug 13 in a side view, and the auxiliary lug 15 Along the blade lug 13 Based on the rotation, the auxiliary lug 15 interferes with the blade lug 13 because it can be transformed into a use posture protruding outward from the wheel portion 12 and a storage posture housed inside the wheel portion 12. As a result, the auxiliary lug 15 can be arbitrarily set in size as well as attached to various types of rear wheels 6 for use. In addition, the auxiliary lug 15 is configured separately from the attachment member 16 attached to the spoke 11 and is detachably attached to the attachment member 16, so that the auxiliary lug 15 has an appropriate shape according to the inclination, soil quality, etc. There is also an advantage that the auxiliary lug 15 can be replaced.

1 traveling machine body 6 rear wheel 10 hub 11 spoke 12 wheel part 13 blade lug 14 auxiliary lug device 15 auxiliary lug 16 attachment member 16a spoke attachment part 16b auxiliary lug attachment part 17 rotation support shaft 19 bracket 19b shaft support piece 19c shaft support hole 20 Fixing plate 21 Nut

Claims (1)

Attached to the rear wheel for a riding type rice transplanter having a plurality of spokes extending radially from the hub to support the wheel part and a plurality of blade lugs protruding in a side view inclined at the side part of the wheel part Auxiliary lug device used,
An auxiliary lug arranged in parallel to the inside of the blade lug in a side view; and an attachment member for attaching the auxiliary lug to the spoke. The attachment member includes a spoke attachment portion attached to the spoke, and an auxiliary lug. An auxiliary lug mounting portion that can be detachably mounted, and the auxiliary lug mounting portion supports the auxiliary lug via a pivotal support shaft that is inclined so as to be orthogonal to the blade lug in a side view. The auxiliary lug can be transformed into a use posture protruding outward from the wheel portion and a storage posture housed inside the wheel portion based on rotation along the blade lug. Auxiliary lug device to do.

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