JP4617139B2 - Combine - Google Patents

Description

  The present invention relates to a combine equipped with a weed culvert that can be transformed into a weeding action posture and a retracted posture on the uncut ground side of a pretreatment unit.

On the uncut ground side of the pretreatment unit connected to the front part of the machine body, the weeding posture that weeds out the uncut stems by projecting from the side of the pretreatment unit, and the storage posture along the side of the pretreatment unit There is known a combine equipped with a branch guide (narrow guide) that can be transformed into a shape (for example, see Patent Document 1). The weed fence shown in Patent Document 1 is connected via a wire to an operation lever that can be operated from the driver's seat, and the posture is switched by the lever operation force.
JP 2004-194622 A

  By the way, in general, the pre-processing unit of the combine is separated from the traveling machine body or retreated and swung to one side of the machine body around the vertical axis in order to facilitate the maintenance of the pre-processing part and the machine body front part. Be able to. However, in the combine described in Patent Document 1, it is necessary to release the connection between the operation lever and the wire when the preprocessing unit is attached or detached (or retracted swing). There is a problem that becomes complicated.

The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is provided on one side of a pre-processing unit connected to a front part of an airframe. On a certain uncut area side, it is equipped with a weed culm that can be transformed into a weeding posture that weeds out the uncut stem pods by overhanging from the side of the pre-treatment unit and a storage posture along the side of the pre-treatment unit , Between the rear end of the weed body and the step provided so as to be able to move freely on the uncut ground side of the aircraft, when the weed pod is in the weeding action position, it projects to the uncut area side together with the weed pod, and the retracted position In this case, an auxiliary shedding basket that transforms along the side of the pretreatment unit is interposed, and the pretreatment unit is disposed in the combiner that can be retracted and swung to one side about the vertical axis. The Kusanagi is linked to an operation lever that can be operated from the driver's seat, and the aforementioned force is In performing the posture switching of rods, the non-cutting point side of the body front, provided with a swinging link to the left and right swing to the posture switching of the partial grass rod in response to operation of the operation lever, the swing link between the tip and the rear end portion of the partial grass rod, the pre-processing unit of the saving Rutotomoni swing is interposed flexibility means that allows the partial grass rod, the longitudinal to the auxiliary component grass rod It is connected so that it can be bent in the left-right direction at a position in the vicinity of the uncut ground side of the shaft . If comprised in this way, it will become possible to evacuate and swing a pre-processing part, without canceling | releasing connection of a weed tub and an operation lever.
According to a second aspect of the present invention, in the first aspect, the weed pod and the operation lever are linked via a linkage mechanism, and the linkage between the weed fold and the operation lever is connected to the weed of the linkage mechanism. It is possible to release on the heel side. According to this configuration, in order to release and swing the pretreatment unit, the release operation is performed in a positional manner, compared with the case where the connection is released on the operation lever side of the connection mechanism when the connection between the weed pod and the operation lever is released. Becomes easier.

[First embodiment]
Next, embodiments of the present invention will be described with reference to the drawings. In the drawings, 1 is a combine, and the combine 1 is selected by a pretreatment unit 2 that cuts the stems and a threshing unit 3 that threshs the grains from the cut stems and sorts the grains. A grain tank 4 in which grains are stored, a post-processing unit 5 for post-processing threshing waste, an operation unit 7 in which a driver's seat 6 and various operation tools are arranged, and a crawler type traveling unit 8 And is configured.

  The pre-processing unit 2 includes a divider 9 for introducing uncut stalks while weeding, a pulling device 10 for causing the introduced stalks, a cutting blade device 11 for cutting the stems, and a mowing It comprises a pre-processing transport device (not shown) for transporting the stalks toward the threshing unit 3 and a pre-processing frame 12 to which these are assembled, and is movable up and down relative to the front part of the combine 1 body. It is connected. In addition, the pre-processing unit 2 is configured to be able to retract and swing to one side of the aircraft about the vertical axis 2a in order to facilitate maintenance of the front of the aircraft.

On the uncut ground side (left side) of the pre-processing unit 2, there is provided a weed culm 13 for weeding the uncut stem culm (falling down regulation). The weed ridge 13 is formed of a rod-shaped member facing front and rear, and its front end is connected to the left side front end of the pretreatment unit 2 so as to be swingable in the left-right direction. It can be transformed into a herbicidal action posture that overhangs from the portion and weeds uncut stem pods and a retracted posture along the side of the pretreatment unit 2. In the drawings, 14 steps provided retractably in the non-cutting point side of the fuselage (left side), 15 Ru auxiliary component grass rod der which is interposed between the step 14 and minute grass rod 13. As is apparent from FIGS. 3 and 4, the weed ridge 13 is connected to the auxiliary shed 15 so that it can be bent in the left-right direction at a position near the uncut ground side of the longitudinal axis 2 a. .

  A swing link 16 that can swing left and right is provided on the uncut ground side (left side) of the front of the machine body. The base end portion of the swing link 16 is connected to an operation lever 17 that can be operated from the driver's seat 6 via an operating force transmission mechanism 18, while the tip end portion of the swing link 16 is connected to an accommodation mechanism (accommodation). Means) It is connected to the weed ridge 13 through 19. That is, when the operation lever 17 is operated, the swing link 16 swings by the operation force, and the posture of the weed ridge 13 is switched. Hereinafter, specific configurations of the swing link 16, the operation lever 17, the operation force transmission mechanism 18, and the accommodation mechanism 19 will be described.

  The accommodation mechanism 19 of the present embodiment includes a connection rail 13a provided in parallel on the rear end side of the weed ridge 13 and an engagement hook 16a provided at the tip of the swing link 16 and engaged with the connection rail 13a. Thus, the weed ridge 13 is made to follow the swing of the swing link 16 while allowing the connecting position of the weed link 13 and the swing link 16 to slide. The connecting rail 13a has a bolt 13c with respect to a pair of fixing plates 13b welded to the weed ridge 13 in a state where the rear end bent in a U-shape is inserted into the rear end of the weed ridge 13. It is detachably fixed via.

  The swing link 16 of the present embodiment is made of a bar-like member bent into a gentle S-shape, and has an engagement hook 16a at the distal end and a boss 16b and a connecting plate 16c at the proximal end. Yes. A boss 16b of the swing link 16 is rotatably fitted to a support shaft portion 20a of a swing link bracket 20 provided at the front of the machine body to allow the swing link 16 to swing left and right.

  The operating force transmission mechanism 18 of the present embodiment is composed of a pair of wires 21 and 22 (Boden wires). The swing link side ends of the wires 21 and 22 are connected to both ends of the connection plate 16c, and the connection plate 16c swings in a seesaw shape in response to the reverse push-pull of the wires 21 and 22, The swing link 16 is swung left and right. Needless to say, the operating force transmission mechanism 18 is not limited to the wires 21 and 22, and may be constituted by a link mechanism, for example.

  The operation lever 17 is attached to the body frame (not shown) via the operation lever bracket 23 and is operated in the front-rear direction along the lever guide groove 23 a of the operation lever bracket 23. The operation lever side end portions of the wires 21 and 22 are connected to the base end portion of the operation lever 17 so as to sandwich the position of the support shaft 23 b of the operation lever 17, and the wires 21 and 22 are operated according to the operation of the operation lever 17. Are pushed and pulled against each other. As a result, the swing link 16 swings with the operating force of the operation lever 17 and the posture of the weed ridge 13 can be switched. In this embodiment, in order to hold the operation position of the operation lever 17 by the engaging portion 23c of the lever guide groove 23a, the second support shaft 17a that allows the operation lever 17 to swing left and right, and the operation lever 17 are provided. Is provided with a spring 17b for biasing the left side toward the left side.

  In the present embodiment configured as described, in the state where the operation lever 17 is operated to the storage position, the weed ridge 13 is stored along the side of the preprocessing unit 2 (see FIG. 2). When the operation lever 17 is operated to the weeding action position in this state, the swing link 16 swings outward, and the posture of the weed ridge 13 is switched to the weeding action posture (see FIG. 3). In this state, the pretreatment unit 2 can be retreated and swung without releasing the connection between the weed ridge 13 and the operation lever 17 (see FIG. 4). That is, when the preprocessing unit 2 is retracted and swung to one side about the vertical axis 2a, the relative positions of the weed ridge 13 and the rocking link 16 change. Since the connecting position is accommodated by the accommodation mechanism 19, the pretreatment unit 2 can be retreated and oscillated without applying an excessive force to the weed ridge 13 or the oscillating link 16. This eliminates the need for releasing the connection between the weed ridge 13 and the operation lever 17 and simplifies the retreat operation of the preprocessing unit 2.

  In addition, in this embodiment, the swing fulcrum (support shaft portion 20a) of the swing link 16 is disposed in the vicinity of the retreat swing support point (vertical axis 2a) of the pretreatment unit 2, so that the pretreatment unit 2 is When swinging and retreating, the connecting position of the weed ridge 13 and the swing link 16 can be accommodated while the weed 13 is smoothly swung.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the second embodiment, when interposing means for allowing the retreat swing of the pretreatment unit 2 to be interposed between the weed ridge 13 and the operation lever 17, the accommodation means is configured on the operation lever 17 side. This is different from the first embodiment. Specifically, by retracting and holding the operation position of the operation lever 17, the retreat swing of the preprocessing unit 2 is allowed. That is, when the preprocessing unit 2 is retracted and swung, the operating lever 17 moves against the frictional holding force and absorbs the force acting on the weed ridge 13. Even if comprised in this way, similarly to 1st embodiment, it becomes possible to retract | save the pre-processing part 2 without canceling | releasing the connection of the weed basket 13 and the operation lever 17. FIG.

[Third embodiment]
Next, a third embodiment of the present invention will be described. In the third embodiment, when the pre-processing unit 2 is retracted and swung, the connection between the weed basket 13 and the operation lever 17 is released. However, the connection mechanism (the swing link 16, The operation force transmission mechanism 18 and the accommodation mechanism 19 are released on the weed ridge 13 side, which is different from the conventional example. Specifically, there are a method of releasing the connection between the weed ridge 13 and the swing link 16 by removing the connecting rail 13a, and a method of removing the swing link 16 from the machine body. If comprised in this way, when releasing the connection of the weed ridge 13 and the operation lever 17 in order to evacuate and swing the pre-processing unit 2, as in the case of releasing the connection on the operation lever 17 side of the connection mechanism, the machine body Since the release work can be performed outside the machine body without performing the release work at the center portion, the release work can be easily performed in terms of position.

It is a side view of a combine. It is a top view which shows the stowage storage state of a combine. It is a top view which shows the weed ridge overhang | projection state of a combine. It is a top view which shows the pre-processing retreat state of a combine. It is a top view which shows the connection part of a rocking | fluctuation link and a branch weed. It is a perspective view which shows the connection part of a rocking | fluctuation link and a weed fold. It is a perspective view of an operation lever.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combine 2 Pre-processing part 2a Vertical axis 6 Driver's seat 13 Weeding basket 16 Swing link 17 Operating lever 18 Operating force transmission mechanism 19 Accommodating mechanism

Claims (2)

A herbicidal posture and a side part of the pretreatment unit that weeds the uncut stem shoots by projecting from the side of the pretreatment unit to the uncut area side that is one side of the pretreatment unit connected to the front part of the machine body The stowage canopy can be transformed into a retracted posture along the wing, and the weeding canopy is in the weeding action posture between the rear end of the weed body and a step that can be moved freely on the uncut ground side of the aircraft. In some cases, there is an auxiliary weed paddle that projects to the uncut area along with the weed paddle, and in the retracted position, the auxiliary weed paddle transforms along the side of the preprocessing section, and the preprocessing section is centered on the vertical axis. In a combine that can be swayed and swung to one side as described above, the fuselage fence is linked to an operation lever that can be operated from the driver's seat, and the body is used for switching the posture of the weed fence by the operation force of the operation lever. Switch the posture of the weed culvert according to the operation of the control lever on the front uncut area. The swinging link is provided to the left and right swinging manner, between the rear end portion of the partial grass rod and tip of the swing links, it is interposed flexible means for allowing the evacuation swinging of the preprocessing unit Rutotomoni The combine weed is characterized in that it is connected to the auxiliary weed fold so that it can be bent in the left-right direction at a position near the uncut area on the vertical axis . In Claim 1, while connecting the said weed fence and the said operation lever via a connection mechanism, it was made possible to cancel | release the connection of the said weed fence and the said operation lever by the weed fence side of the said connection mechanism. A featured combine.

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