JP2019170186A - Connection position adjustment mechanism and agricultural work machine - Google Patents

Abstract

To provide a connection position adjustment mechanism and agricultural work machine in which the position in an unfolded state is hard to be misaligned.SOLUTION: A connection position adjustment mechanism has: a first member having a first locking member; a second member connected to the first member in a rotatable manner; an abutment member provided at the second member, capable of sliding to the second member, and coming in abutment with the first locking member in a state where the second member is unfolded; a position adjustment member for adjusting the position of the abutment member in the sliding direction of the abutment member; and a fixing member being a member different from the position adjustment member, and fixing the position of the abutment member at a place different from the place where the position adjustment member adjusts the position of the abutment member.SELECTED DRAWING: Figure 3

Description

  One embodiment of the present invention relates to a connection position adjusting mechanism and an agricultural machine.

  At present, in order to reduce the working hours of farm work, the farm machines are being automated and various farm machines are being developed. In particular, agricultural machines (cultivators and plows) that are attached to the rear of a traveling machine such as a tractor and can be exchanged depending on the type of work such as tillage and shavings are only exchanged as attachments to the running machine. Therefore, it is possible to cope with various farm work and greatly contribute to the cost reduction of farm work.

  Agricultural working machines such as a tiller and a plow have a working rotor that plows or stirs the field by rotating the work claws. A farm working machine having a work rotor has a leveling mechanism behind the work rotor in order to level a field that has been roughed by work with work claws. In these agricultural machines, it is preferable that the width in the direction orthogonal to the traveling direction of the traveling machine body is large in order to efficiently perform work on the farm field. However, the above-described farm work machine needs to travel on a farm road or a general road when moving from a storage place where the farm work machine is stored to a place where the work is performed (for example, a farm field). Therefore, there is a limit on the width of the agricultural machine.

  Therefore, for example, as in Patent Document 1, the side working body is folded and moved by rotating (turning) the side working body with respect to the central working body provided in the agricultural machine. Agricultural machines have been developed that can switch between a deployed state in which a work body is deployed. In such a farm work machine, in order to perform work uniformly on the field, it is preferable that the central work body and the side work bodies are arranged in a straight line in the unfolded state. In the agricultural machine at the time of shipment, even if the central working body and the side working bodies are adjusted to be linearly aligned in the unfolded state, the positional relationship between the two may be shifted due to deterioration over time. In such a case, it is necessary to adjust the positional relationship between the central working body and the side working body in the unfolded state. In Patent Document 1, the position of the folding work body 24 in the unfolded state is adjusted by adjusting the position of the contact plate 53 by operating the operation unit 52.

JP 2006-166765 A

  However, in the case of the technique described in Patent Document 1, since the position adjustment of the contact plate portion 53 and the fixing of the position are performed only by the operation portion 52 (bolt member 60), the load on the operation portion 52 is large. There is a problem that the position of the contact plate portion 53 is likely to be displaced.

  One embodiment of the present invention has been made in view of the above problems, and an object thereof is to provide a connection position adjustment mechanism and an agricultural machine that are difficult to shift in a deployed state.

  The connection position adjustment mechanism (connection position adjustment mechanism 70) in one embodiment of the present invention includes a first member (central work body 10C or central shield cover 24C) having a first engagement member (first engagement member 900), and A second member (right working body 10R or right shield cover 24R, or left working body 10L or left shield cover 24L) connected to the first member so as to be rotatable, and the second member. The abutting member (abutting member 100) that is slidable relative to the second member and abuts against the first locking member in a state in which the second member is deployed, and the sliding of the abutting member A position adjusting member (position adjusting member 200) for adjusting the position of the contact member in the moving direction, and a fixing member (fixing) for fixing the position of the contact member with a member different from the position adjusting member. Having a timber 300), the.

  The fixing member may act on the contact member from a direction different from a direction in which the position adjusting member acts on the contact member.

  The fixing member may act on the contact member in a direction from the contact member toward the second member.

  A second locking member provided on the abutting member and locking the first locking member in a state in which the second member is deployed, and restricting the rotation of the second member relative to the first member ( A second locking member 400) may further be included.

  A pivot coupling member (rotation coupling member 500) that is pivotally connected to one of the first member and the second member and is in contact with the other of the first member and the second member; A power source (the power source 600 or the rotation cylinder 46b) provided on the member or the second member and configured to supply power to the rotation connection member, and a connection that connects the rotation connection member and the second locking member. A rod (connecting rod 700), and the rotating connecting member rotates the second member by the power received from the power source, and the power received from the power source is connected to the connecting member. You may transmit to the said 2nd locking member via a rod.

  The second locking member is pivotally connected to the abutting member, and the other of the first member and the second member is connected to the second connecting member when the second member rotates. When sliding with the rotation connecting member in one region (first region 511) and the second locking member rotates and locks to the first locking member, it differs from the first region. You may slide with the said rotation connection member in the 2nd area | region (2nd area | region 513) of the said rotation connection member.

  The connecting rod may be extendable.

  The connecting rod is attached to a first rod (first rod 710), a second rod (second rod 720) slidably connected to the first rod, and the first rod, A stopper (stopper 730) that restricts sliding movement of the second rod relative to the first rod in a direction in which the connecting rod extends, and an elastic member (elastic member 740) that applies an elastic force in the direction in which the connecting rod extends. You may have.

  The stopper may be attached to the first rod so as to be detachable at different positions in the extending / contracting direction of the connecting rod.

  The connection position adjustment mechanism (connection position adjustment mechanism 70) in one embodiment of the present invention includes a first member (central work body 10C or central shield cover 24C) having a first engagement member (first engagement member 900), and A second member rotatably connected to the first member (the right working body 10R or the right shield cover 24R, or the left working body 10L or the left shield cover 24L) and the second member. A contact member (contact member 100) that is slidable and contacts the first locking member in a state in which the second member is deployed; and the contact member in the sliding movement direction of the contact member A position adjusting member (position adjusting member 200) that adjusts the position of the second member, and the second member that is provided on the contact member and is locked to the first locking member in a state where the second member is deployed. Has a second locking member for restricting the rotation (second locking member 400), the relative said first member.

  A farm working machine according to an embodiment of the present invention includes any one of the above-described connection position adjustment mechanisms, a first work rotor having work claws provided in the first member, and a second member. A second working rotor having working claws.

  According to one embodiment of the present invention, it is possible to provide a connection position adjusting mechanism and an agricultural machine that are unlikely to shift in a deployed state.

It is the perspective view which looked at the structure of the agricultural working machine (deployment state) concerning one embodiment of the present invention from the back side. It is the perspective view which looked at the structure of the agricultural working machine (state which accommodated only the left side working body) which concerns on one Embodiment of this invention from the back side. In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is the figure which expanded the connection part of a center work body and a side work body. In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is the figure which expanded the connection position adjustment mechanism by the side work body side. It is a figure which shows the contact member (hook bracket) used for the connection position adjustment mechanism which concerns on one Embodiment of this invention. It is a figure which shows the rotation connection member (cylinder arm) used for the connection position adjustment mechanism which concerns on one Embodiment of this invention. It is a figure which shows the connection rod (push rod and connect rod) used for the connection position adjustment mechanism which concerns on one Embodiment of this invention. In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the side, it is the figure which expanded the connection position adjustment mechanism by the side work body side. In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the downward direction, it is the figure which expanded the connection position adjustment mechanism by the side work body side. In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is a figure explaining the rotation operation | movement of the side work body with respect to a center work body, and the figure explaining the function of the rotation connection member in the state. . In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is a figure explaining the rotation operation | movement of the side work body with respect to a center work body, and the figure explaining the function of the rotation connection member in the state. . In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is a figure explaining the rotation operation | movement of the side work body with respect to a center work body, and the figure explaining the function of the rotation connection member in the state. . In the figure which looked at the agricultural working machine which concerns on one Embodiment of this invention from the front, it is a figure explaining the rotation operation | movement of the side work body with respect to a center work body, and the figure explaining the function of the rotation connection member in the state. .

  Hereinafter, an embodiment of a connection position adjusting mechanism and an agricultural machine according to an embodiment of the present invention will be described with reference to the drawings. However, the connection position adjusting mechanism and the agricultural working machine according to the embodiment of the present invention can be implemented in many different modes, and are not construed as being limited to the description of the examples shown below. Note that in the drawings referred to in this embodiment, the same portions or portions having similar functions are denoted by the same reference numerals or the same reference characters, and the repeated description thereof is omitted. For example, when the work machine of the present invention is composed of three work bodies, that is, a central work body, a left work body, and a right work body, “C” is shown after the number to indicate that each work body has a part. ”,“ L ”, and“ R ”.

  In the specification and claims of the present application, unless otherwise specified, “upper” indicates a direction moving away from the field vertically, and “lower” indicates a direction approaching vertically toward the field. Further, “front” indicates a direction in which the traveling machine body is positioned with respect to the work machine, and “rear” indicates a direction 180 ° opposite to the front. “Left” indicates the left when the traveling machine body is located in the direction where the work machine is located, and “Right” indicates the direction opposite to the left by 180 °.

  The farm work machine according to the present embodiment is connected to the rear part of a traveling machine body such as a tractor, and can be used for a farm work machine that plows or agitate the farm field by rotating the work claws, such as a tiller or a plow. . The agricultural machine according to the present embodiment is a storage state in which the width of the agricultural machine is reduced by folding a part of the agricultural machine, and an expanded state in which the width of the agricultural machine is expanded by expanding a part of the agricultural machine. Can be used for an agricultural machine that can be switched. In the present embodiment, the features of an embodiment of the present invention will be described using a scraper as an example of an agricultural machine, but the agricultural machine according to an embodiment of the present invention may be a cultivator. It can also be applied to agricultural machines other than shaving machines. In addition, as long as there is no technical contradiction, techniques between different embodiments can be combined. Although this embodiment demonstrates the structure which regulates the rotation angle of a center work body and a side work body as a connection position adjustment mechanism, a connection position adjustment mechanism is applicable to rotation mechanisms other than the above.

<First Embodiment>
[Configuration of Work Machine 10]
Hereinafter, the configuration of the work machine 10 according to the first embodiment will be described in detail with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a configuration of an agricultural machine (deployed state) according to an embodiment of the present invention as viewed from the back side. FIG. 2 is a perspective view of the configuration of the agricultural working machine (a state in which only the left working body is stored) according to an embodiment of the present invention as seen from the back side. Note that FIG. 2 is a diagram in which the position of the left working body 10L is changed with respect to FIG.

  As shown in FIG. 1, the work machine 10 according to the present embodiment includes a central work body 10C, a left work body 10L, and a right work body 10R, and has a structure divided into three. The central work body 10C is disposed at the center of the work machine 10 and functions as a work machine body. The left working body 10L and the right working body 10R are attached to the left and right ends of the central working body 10C so as to be rotatable in the vertical direction. The work machine 10 can be folded over the central work body 10C by turning the left work body 10L and the right work body 10R obliquely upward, and can be folded obliquely downward as shown in FIG. Can be deployed. When the left working body 10L and the right working body 10R are not particularly distinguished, they may be referred to as side working bodies.

  Here, a state in which the left work body 10L and the right work body 10R are overlapped with the central work body 10C and folded is referred to as a storage state. The stowed state is a state where the width of the work machine 10 in the direction orthogonal to the traveling direction of the traveling machine body is reduced. In addition, a state where the left working body 10L, the right working body 10R, and the central working body 10C are arranged side by side is referred to as a developed state. The unfolded state is a state in which the work machine 10 is extended in a direction perpendicular to the traveling direction of the traveling machine body.

  Next, the central work body 10C will be described. The central working body 10C supports the top mast 12 and the lower link connecting portion 14 that function as a connecting portion with a traveling machine body such as a tractor, the input shaft 16 that transmits power from the traveling machine body, and the central working body 10C that extends in the left-right direction. Support frame 18, transmission frame (chain case) 20C, gear box 22, central shield cover 24C, working rotor (not shown), first central leveling body 28C, second central leveling body 30C, apron control mechanisms 31a and 31b And a central leveler control mechanism 32C. Although not shown, the work rotor is provided with a plurality of work claws.

  The top mast 12 is provided at the front center portion of the central working body 10C, and the lower link connecting portions 14 are provided at two positions on the left and right of the central working body 10C. The top mast 12 and the lower link connecting portions 14 provided at the two left and right positions are respectively connected to the top link of the traveling machine body (not shown) and the lower links (three-point link hitch mechanisms) provided at the two left and right positions. Is attached to the rear part of the traveling machine body so as to be movable up and down. The work machine 10 and the traveling machine body may be connected via an auto hitch frame attached to the three-point link hitch mechanism of the traveling machine body.

  The input shaft 16 is provided in the gear box 22 provided in the front center portion of the central work body 10 </ b> C, and inputs the power transmitted from the traveling machine body to the work machine 10. The input shaft 16 is connected to the PTO shaft of the traveling machine body, and power is transmitted from the PTO shaft through a universal joint or the like.

  The support frame 18 also serves as a main body frame of the central work body 10 </ b> C, and is extended on the left and right sides of the gear box 22 in the left-right direction with respect to the traveling direction of the traveling machine body. Here, a transmission shaft (not shown) is internally provided in the support frame 18 disposed between the gear box 22 and the transmission frame 20C. Power for rotating the working rotor is transmitted from the gear box 22 to the transmission frame 20C by the transmission shaft.

  The central shield cover 24C is provided along the support frame 18 and is disposed so as to cover the upper side of the work rotor. The soil crushed by the work rotor hits the inner wall of the central shield cover 24C and is further crushed, and falls and returns to the field again. Thus, the central shield cover 24C has both a function of preventing scattering of soil wound up by the work rotor and a function of crushed soil.

  The work rotor of the central work body 10C has a configuration in which a plurality of work claws are attached to a rotating shaft (not shown) rotatably supported below the central shield cover 24C using a flange or a holder. Have. The power input from the input shaft 16 is shifted in the gear box 22, transmitted via the transmission shaft in the support frame 18, the transmission frame 20 </ b> C, etc., and converted into the rotational motion of the working rotor.

  The first central leveling body 28C is rotatably attached to the central shield cover 24C, and is usually called an apron. The second central leveling body 30C is attached to the first central leveling body 28C so as to be rotatable in the vertical direction, and is generally called a leveler. The first central leveling body 28C serves as a cover for returning mud and soil scattered by the rotation of the work rotor of the central working body 10C to the field and a leveling member that performs leveling work by pressing the second central leveling body 30C against the field. As a role. The second central leveling body 30C plays a role as a leveling member for leveling the field surface by directly contacting the field.

  The apron control mechanisms 31a and 31b are installed between the central shield cover 24C and the first central leveling body 28C, and function as means for controlling the vertical rotation of the first central leveling body 28C. The apron control mechanisms 31a and 31b have a pressure mode that prevents the first central leveling body 28C from rotating upward and a non-pressurization mode that does not prevent the first central leveling body 28C from rotating upward. In the pressurizing mode, an urging force that prevents the first central leveling body 28C from rotating upward is applied. This urging force is realized by the reaction force of the springs arranged on the link rods constituting the apron control mechanisms 31a and 31b. By setting the apron control mechanisms 31a and 31b to the pressurizing mode, it is possible to improve the soil breaking performance and leveling performance by the first central leveling body 28C, and it is possible to finish the field more efficiently.

  The central leveler control mechanism 32C is installed between the central shield cover 24C and the second central leveling body 30C, and functions as means for controlling the vertical rotation of the second central leveling body 30C. The central leveler control mechanism 32C has a soiling mode for fixing the second central leveling body 30C in a downward direction (earthing state) and a leveling mode that does not prevent the second central leveling body 30C from rotating in the vertical direction. Switching is possible. The mode switching is realized by restricting or releasing the operation of the link rod constituting the central leveler control mechanism 32C.

  Next, the left working body 10L will be described. The left work body 10L includes a left shield cover 24L, a work rotor 26L (see FIG. 2) disposed below the left shield cover 24L, a transmission frame (chain case) 20L, a first left leveling body 28L, and a second left leveling body. 30L, a left leveler control mechanism 32L, and a left extension leveling body rotating mechanism 34L. The roles of the left shield cover 24L, the transmission frame 20L, the first left leveling body 28L, the second left leveling body 30L, and the left leveler control mechanism 32L are the same as the corresponding elements in the central working body 10C described above. Therefore, the description here is omitted.

  Here, as shown in FIG. 2, the working rotor 26L includes a rotating shaft 26La and a plurality of working claws 26Lb arranged around the rotating shaft 26La via a holder. When the rotating shaft 26La is rotated by the power transmitted through the transmission frame 20L, the work claws 26Lb arranged around the rotating shaft 26L rotate at the same time, thereby crushing and stirring the soil in the field. Although not shown, the work rotors of the central work body 10C and the right work body 10R have the same configuration as that of the work rotor 26L.

  Returning to FIG. 1, the left extended leveling body rotating mechanism 34L is a mechanism for rotating the left extended leveling body 36L that is rotatably connected to the second left leveling body 30L of the left working body 10L. is there. The left extension leveling body 36L is provided to extend from the end of the left work body 10L in the left direction of the work implement 10, and takes charge of leveling work in an area outside the left work body 10L. The second left leveling body 30L and the left extended leveling body 36L are rotatably connected by the extended leveling body connecting portion 38L, so that the left side left leveling body 36L is folded toward the second left side leveling body 30L. It can be turned.

  Here, in the present embodiment, the left extended leveling body rotating mechanism 34L includes a drive motor unit 34La, a rotating arm 34Lb, and a connecting wire 34Lc. One end of the rotating arm 34Lb is connected to the drive motor unit 34La, and the other end is connected to the connecting wire 34Lc. The connecting wire 34Lc has one end connected to the rotating arm 34Lb and the other end connected to the left extension leveling body 36L.

  When the drive motor unit 34La operates, a rotational driving force is generated, and the rotating arm 34Lb rotates in a substantially horizontal direction. In conjunction with the turning operation of the turning arm 34Lb, the left extended leveling body 36L pulled by the connecting wire 34Lc rotates via the extended leveling body connecting portion 38L. Thereby, accommodation and expansion | deployment of the left side extension leveling body 36L are attained.

  In the present embodiment, an example in which the left extended leveling body rotating mechanism 34L is configured by the drive motor unit 34La, the rotating arm 34Lb, and the connecting wire 34Lc is shown. Other mechanisms may be used as long as the extended leveling body 36L is rotatable.

  Next, the right working body 10R will be described. The right working body 10R includes a right shield cover 24R, a working rotor (not shown) disposed below the right shield cover 24R, a transmission frame (chain case) 20R, a first right leveling body 28R, and a second right leveling body 30R. The right leveler control mechanism 32R and the right extension leveling body rotating mechanism 34R are provided. Here, the roles of the right shield cover 24R, the transmission frame 20R, the first right leveling body 28R, the second right leveling body 30R, the right leveler control mechanism 32R, and the right extension leveling body rotating mechanism 34R are respectively described above. Since it is the same as each corresponding element in the left working body 10L, description here is omitted. Further, the right extended leveling body 36R and the extended leveling body connecting part 38R are the same as the left side extended leveling body 36L and the extended ground leveling body connecting part 38L.

  Furthermore, the working machine 10 according to the present embodiment is provided with the center digging plates 40Ca and 40Cb, the left lining plate 40L, and the right digging plate 40R on the central working body 10C, the left working body 10L, and the right working body 10R, respectively. . These are plates for controlling the water flow (actually the flow of water containing soil) generated during the scraping operation, and by providing these mulching plates, the finish of the field surface can be improved.

  For example, the central mulching plates 40Ca and 40Cb are provided at positions where soil is returned to the cage such as a tire of a traveling machine body that travels in front of the work machine 10, and contributes to the flattening of the field undulation caused by the cage. Further, the left side panel 40L and the right side panel 40R bring the soil inward, and draw the surrounding water flow into the back side of each side panel. As a result, even if a basket or the like floats outside the ends of the left work body 10L and the right work body 10R, it is drawn into the respective work rotors by the water flow, which contributes to an improvement in the finish of the field surface.

  In addition, the working machine 10 according to the present embodiment includes a left leveler control mechanism 32L and a right leveler control mechanism 32R on the left side work body 10L and the right side work body 10R, respectively. These left-side leveler control mechanism 32L and right-side leveler control mechanism 32R are means for regulating or releasing the rotation of the second left-side leveling body 30L and the second right-side leveling body 30R in the vertical direction, respectively, similarly to the central leveler control mechanism 32C. Function as.

  The left working body 10L and the right working body 10R described above are rotated by the action of the rotating cylinders 46a and 46b via the working body rotating mechanisms 44a and 44b provided at both ends of the central working body 10C. It will be in the storage state or unfolded state. At that time, the first central leveling body 28C and the first left leveling body 28L, and the first central leveling body 28C and the first right leveling body 28R are connected by the first connecting portions 48a and 48b, respectively. In addition, the second central leveling body 30C and the second left leveling body 30L, and the second central leveling body 30C and the second right leveling body 30R are connected by the second connecting portions 50a and 50b, respectively.

  In the present specification and claims, the collective term for the left working body 10L and the right working body 10R may be referred to as a “side working body”. Also, a general term that combines the first left leveling body 28L and the first right leveling body 28R is referred to as “first side leveling body”, or a general term that includes the second left leveling body 30L and the second right leveling body 30R. Sometimes referred to as “second lateral leveling body”.

[Configuration of Work Rotating Mechanism 44]
FIG. 3 is an enlarged view of a connection portion between the central working body and the side working bodies in the view of the agricultural working machine according to the embodiment of the present invention as viewed from the front. In FIG. 3, the central working body 10C and the right working body 10R are shown enlarged. In the following description, the configurations of the central working body 10C and the right working body 10R will be described, but the configurations of the central working body 10C and the left working body 10L are the same. That is, in the following description, the right working body 10R can be replaced with the left working body 10L.

  As shown in FIG. 3, the work body rotation mechanism 44 b includes a work body rotation arm 60 (60 </ b> R and 60 </ b> C) and a connection position adjustment mechanism 70. The work body rotation arm 60 determines the rotation range of the right work body 10R relative to the central work body 10C. In other words, the work body rotation arm 60 provides a rotation center of the right work body 10R with respect to the central work body 10C. The connection position adjusting mechanism 70 determines the angle of the right working body 10R with respect to the central working body 10C in the rotation range in the deployed state. Thereby, the connection position of the right working body 10R with respect to the central working body 10C can be adjusted.

  The work body rotation arm 60 includes a central work body rotation arm 60C and a right work body rotation arm 60R. These are connected at a connecting portion 61 so as to be rotatable. The central working body rotation arm 60C is fixed to the central shield cover 24C. The right working body rotation arm 60R is fixed to the right shield cover 24R. That is, the right working body 10R rotates around the connecting portion 61 with respect to the central working body 10C. A first locking member 900 is provided on the central working body 10C. The first locking member 900 is fixed to the central shield cover 24C.

  Here, the central working body 10C or the central shield cover 24C may be referred to as a first member. The right working body 10R or the right shield cover 24R may be referred to as a second member. The left working body 10L or the left shield cover 24L may be referred to as a second member.

  The connection position adjustment mechanism 70 includes an abutting member 100, a position adjustment member 200, a fixing member 300, a second locking member 400, a rotation connection member 500, a power source 600, and a connection rod 700.

  The contact member 100 is a member that is slidable relative to the right shield cover 24R. In the state in which the right working body 10R is deployed, the contact member 100 contacts the first locking member 900. Since the rotation of the right working body 10R is restricted by the contact member 100 coming into contact with the first locking member 900, the connection position (turning angle) of the right working body 10R with respect to the central working body 10C in the unfolded state. Will be determined. That is, the connection position of the right working body 10R with respect to the central working body 10C in the unfolded state is determined by the position of the contacting member 100 in the sliding movement direction of the contacting member 100. Since the contact member 100 is slidable, the connection position can be adjusted steplessly. The detailed configuration of the contact member 100 will be described later. The contact member 100 can also be called a hook bracket.

  The position adjustment member 200 adjusts the position of the contact member 100 in the slide movement direction of the contact member 100. In the present embodiment, the position adjusting member 200 is provided on the opposite side of the central working body 10C with respect to the contact member 100 in the deployed state. In other words, the position adjustment member 200 is provided on the opposite side of the contact member 100 from the side on which the contact member 100 and the central work body 10C are in contact. When the position adjustment member 200 pushes the contact member 100 toward the central work body 10C in the unfolded state, the position of the contact member 100 is adjusted. In other words, the position adjustment member 200 acts on the contact member 100 in the sliding movement direction of the contact member 100. Specifically, a bolt is used as the position adjustment member 200. The position of the contact member 100 is adjusted by screwing the bolt and pushing the contact member 100 with the tip of the bolt.

  In the present embodiment, the position adjustment member 200 is configured using a push bolt as described above, but is not limited to this configuration. The position adjustment member 200 only needs to have a function of sliding the contact member 100, and may be an expansion / contraction mechanism whose expansion / contraction operation is controlled by, for example, a motor. Further, the position adjusting member 200 may be provided at a position different from the position on the opposite side of the central working body 10 </ b> C with respect to the contact member 100. For example, the position adjustment member 200 may be provided at a position overlapping the contact member 100 in the direction in which the right work body 10R extends, or may be provided closer to the central work body 10C than the contact member 100.

  The fixing member 300 is a member different from the position adjustment member 200. The fixing member 300 fixes the position of the contact member 100 in the sliding movement direction of the contact member 100 at a position different from the position where the position adjustment member 200 adjusts the position of the contact member 100. The fixing member 300 acts on the contact member 100 from a direction different from the sliding movement direction of the contact member 100. Specifically, a bolt is used as the fixing member 300, and the bolt acts on the contact member 100 in a direction from the contact member 100 toward the right shield cover 24R.

  In the present embodiment, the configuration in which the fixing member 300 acts on the contact member 100 in the direction from the contact member 100 toward the right shield cover 24R is illustrated, but the configuration is not limited thereto. For example, when the structure shown in FIG. 3 is defined as the fixing member 300 fixing the contact member 100 to the right shield cover 24R from “above” the contact member 100, the fixing member 300 is the position adjustment member. The position of the contact member 100 may be fixed from a “side” different from the direction in which 200 acts on the contact member 100. Alternatively, each of the contact member 100 and the right shield cover 24R is provided with holes so that the contact member 100 can be fixed in multiple stages in the sliding movement direction, and a member such as a pin is provided in each hole. You may fix the position of the contact member 100 by letting it pass.

  The second locking member 400 controls the rotation of the right working body 10R relative to the central working body 10C by being locked to the first locking member 900 in the deployed state. The second locking member 400 is provided on the contact member 100. The second locking member 400 is rotatably connected to the contact member 100. A state in which the second locking member 400 is locked to the first locking member 900 is referred to as a locked state. On the other hand, a state in which the second locking member 400 is not locked to the first locking member 900 or is in a positional relationship where it cannot be locked is referred to as an unlocked state. In the present embodiment, the locked state and the unlocked state are switched by the rotation of the second locking member 400. Although the details will be described later, the distal end portion of the second locking member 400 has a hook shape, and the distal end portion of the second locking member 400 is locked to the first locking member 900 in the locked state. The member 900 turns around to the side opposite to the position where it contacts the contact member 100 (see FIG. 4).

  In the present embodiment, the configuration in which the second locking member 400 is pivotally connected to the contact member 100 is illustrated, but the present invention is not limited to this configuration. For example, the second locking member 400 is connected to the contact member 100 so as to slide with respect to the contact member 100 in a direction intersecting the slide movement direction of the contact member 100 (for example, a direction orthogonal thereto). May be.

  The rotation connecting member 500 is connected to the central work body 10C so as to be rotatable. Specifically, the rotation connecting member 500 rotates around the connection portion 591 fixed to the central shield cover 24C. Although the detailed configuration of the rotation connecting member 500 will be described later, the rotation connecting member 500 rotates while being in contact with a part of the right working body 10R, thereby rotating the right working body 10R. That is, the right working body 10 </ b> R is rotated with respect to the central working body 10 </ b> C by the rotation of the rotation connecting member 500. The rotation connecting member 500 can also be called a cylinder arm.

  The power source 600 is rotatably connected to the central work body 10C. In the present embodiment, the power source 600 corresponds to the turning cylinder 46b shown in FIG. Specifically, the power source 600 includes a cylinder tube 610 and a piston rod 620. The cylinder tube 610 is pivotally connected to the central work body 10 </ b> C at the connection portion 630. The connection portion 630 is fixed to the support frame 18. The piston rod 620 is pivotally connected to the pivot coupling member 500 at the connection portion 640. By the expansion / contraction operation of the cylinder tube 610 and the piston rod 620, the rotation connecting member 500 rotates about the connection portion 591. In other words, the power source 600 supplies power to the rotation connecting member 500. In other words, the rotation connecting member 500 converts the linear power of the power source 600 into rotational power.

  The connecting rod 700 is rotatably connected to each of the second locking member 400 and the rotating connecting member 500. That is, the connecting rod 700 connects the rotating connecting member 500 and the second locking member 400. The power of the power source 600 is transmitted to the second locking member 400 by the connecting rod 700, and the second locking member 400 rotates. That is, the power of the power source 600 is transmitted to the second locking member 400 via the rotation connecting member 500 and the connecting rod 700, whereby the locked state and the unlocked state are switched. In addition, although mentioned later for details, the connecting rod 700 can be expanded-contracted. However, the connecting rod 700 may not be extendable.

  In the present embodiment, a configuration in which the first locking member 900, the rotation connecting member 500, and the power source 600 are provided in the central work body 10C and the second locking member 400 is provided in the right work body 10R is exemplified. However, it is not limited to this configuration. For example, the rotation connecting member 500 and the power source 600 or only the power source 600 may be provided in the right working body 10R. In this case, the first locking member 900 and the second locking member 400 may be provided in the central working body 10C and the right working body 10R, respectively, as in FIG. 3, and the first locking member 900 is the right working body. The second locking member 400 may be provided on the central work body 10C.

[Configuration of Rotating Connecting Member 500]
FIG. 4 is an enlarged view of the connection position adjusting mechanism on the side work body side in the view of the agricultural working machine according to the embodiment of the present invention as seen from the front. FIG. 4 shows the rotation connecting member 500 in the locked state. As shown in FIG. 4, the first contact portion 110 of the contact member 100 is in contact with the first region 910 of the first locking member 900 in the locked state. In the locked state, the distal end portion 410 of the second locking member 400 is positioned on the second region 920 side opposite to the first region 910 with respect to the first locking member 900. In the locked state, even if an external force is applied to the right working body 10R in the direction in which the right working body 10R rotates upward, the tip portion 410 is locked to the second region 920 of the first locking member 900. The upward rotation of the right working body 10R can be restricted.

  The right shield cover 24R includes a pedestal 2410, a first holding part 2420, and a second holding part 2430. The pedestal 2410 is sandwiched between the first holding part 2420 and the second holding part 2430. The pedestal 2410 protrudes toward the front side of the sheet of FIG. The contact member 100 slides on the pedestal 2410. The pedestal 2410 is provided with a through hole through which the fixing member 300 can pass. Alternatively, when the fixing member 300 is a screw, the pedestal 2410 is provided with a screw hole corresponding to the shape of the fixing member 300. The first holding part 2420 is provided on one end side of the pedestal 2410. The first holding portion 2420 is provided with a through hole or a screw hole through which the position adjusting member 200 can pass. The distal end portion 210 of the position adjusting member 200 passes through the first holding portion 2420 and is in contact with the second contact portion 120 of the contact member 100. The first holding unit 2420 holds the position adjustment member 200. The second holding portion 2430 is provided on the other end side of the pedestal 2410. The second holding portion 2430 is provided with an opening 2431 (see FIG. 8) through which the contact member 100 can pass. The second holding unit 2430 holds the contact member 100.

  The right working body 10R has a continuous sliding portion 2450. The continuous sliding portion 2450 is fixed to the right work body rotation arm 60R. That is, the continuous sliding part 2450 rotates together with the right shield cover 24R and the right work body rotating arm 60R. Although details will be described later, the continuous sliding portion 2450 receives rotational power from the rotational connecting member 500 by sliding with an intermittent sliding portion 510 (see FIG. 6) provided in the rotational connecting member 500.

  The contact member 100 is pressed against the pedestal 2410 by a plurality of fixing members 300. Some of the plurality of fixing members 300 are provided at different positions in the sliding movement direction of the contact member 100. The number of fixing members 300 closer to the first locking member 900 is larger than the number of fixing members 300 farther from the first locking member 900. Due to the contact with the first locking member 900, a very strong force is applied to the side of the contact member 100 close to the first locking member 900. Therefore, by increasing the number of fixing members 300 on the side close to the first locking member 900, the contact member 100 can be more firmly fixed. The number of fixing members 300 may be two or less, or may be four or more.

  FIG. 5 is a view showing a contact member (hook bracket) used in the connection position adjusting mechanism according to the embodiment of the present invention. 5A is a plan view of the contact member 100, and FIG. 5B is a first side view of the contact member 100 when the contact member 100 of FIG. C) is a second side view of the contact member 100 of the contact member 100 of FIG.

  As shown in FIG. 5, the contact member 100 includes a long hole 130 and a connection portion 140 in addition to the first contact portion 110 and the second contact portion 120 described above. As shown in FIGS. 5B and 5C, the first contact portion 110 is thicker than other regions. In this example, the reinforcing member 111 is provided in the first contact portion 110, so that the plate thickness of the first contact portion 110 is larger than the plate thickness of other regions. The long hole 130 is a through hole having a length in the sliding movement direction of the contact member 100 and penetrating from the front surface to the back surface of the contact member 100. Since the fixing member 300 penetrates the long hole 130, the contact member 100 can slide in the longitudinal direction of the long hole 130 in a state where the fixing member 300 is loosened. That is, the movable range of the contact member 100 is determined by the shape of the long hole 130. The connection part 140 is a cylindrical member. The connection part 140 is provided with a through hole 141 (or a hollow part). By inserting the columnar connecting portion of the second locking member 400 into the connecting portion 140, the second locking member 400 is rotatably connected to the contact member 100.

  FIG. 6 is a view showing a rotating connecting member (cylinder arm) used in the connecting position adjusting mechanism according to the embodiment of the present invention. 6A is a plan view of the rotary connecting member 500, and FIG. 6B is a first side view of the rotary connecting member 500 as viewed from the direction of arrow B. FIG. FIG. 6C is a second side view of the rotational coupling member 500 when the rotational coupling member 500 of FIG.

  As shown in FIG. 6, the rotation connecting member 500 includes a main body portion 501, an intermittent sliding portion 510, connection portions 520, 530, 540, a support column 550, and a support plate 560. The main body 501 is a plate-like member.

  The intermittent sliding portion 510 is a through hole provided in the plate-like main body portion 501. The intermittent sliding part 510 has a first region 511 having a length in the first direction D1 and a second region 513 having a length in the second direction D2. That is, the first region 511 and the second region 513 have a length in a different direction. The side wall of the intermittent sliding portion 510 in the first region 511 has a curved shape in plan view. The curved shapes of the upper part and the lower part of the first region 511 are different shapes. These curved shapes are adjusted so that excessive pressure is not applied to the intermittent sliding portion 510 and the continuous sliding portion 2450 during the rotation operation of the right working body 10R. In the state of FIG. 4, the continuous sliding portion 2450 passes through the intermittent sliding portion 510, and the continuous sliding portion 2450 is turned into the first region 511 and the first of the intermittent sliding portion 510 by the rotation of the rotation connecting member 500. 2 slides in the region 513.

  The connecting portion 520 is rotatably connected to a connecting portion 591 fixed to the central shield cover 24C. The connecting portion 520 is a cylindrical member, and a rotation shaft is inserted into the hollow portion. Connection portion 530 is pivotally connected to piston rod 620. Connection portion 530 is a columnar member, and is inserted into a circular member provided at the tip of piston rod 620. The connection part 540 is connected to the connecting rod 700 so as to be rotatable. The connecting portion 540 is a columnar member and is inserted into a connecting portion 715 (see FIG. 7) provided at the tip of the connecting rod 700. The connection portion 540 is connected to the main body portion 501 by two support posts 550 and a support plate 560 connected to the support posts 550.

  FIG. 7 is a view showing connecting rods (push rods and connecting rods) used in the connecting position adjusting mechanism according to one embodiment of the present invention. In FIG. 7, the connecting rod 700 is shown in an exploded state. As shown in FIG. 7, the connecting rod 700 includes a first rod 710, a second rod 720, a stopper 730, and an elastic member 740. The first rod 710 can also be called a push rod. The second rod 720 can also be referred to as a connect rod.

  The first rod 710 has a stopper installation part 711, a stopper 713, and a connection part 715. The first rod 710 is divided into a first region 701 and a second region 703. In the first region 701, a plurality of stopper installation portions 711 are provided on the first rod 710. In the present embodiment, a through hole that penetrates the first rod 710 is provided as the stopper installation portion 711. The plurality of stopper installation portions 711 are arranged in the longitudinal direction of the first rod 710. In other words, the plurality of stopper installation portions 711 are provided at different positions in the extending / contracting direction of the connecting rod 700. A stopper 730 is inserted into the stopper installation portion 711. The first region 701 is provided with an elastic member 740 around the first rod 710. In the second region 703, a connecting portion 715 is provided at the tip of the first rod 710. The connection part 715 is connected to the connection part 540 of the rotation connecting member 500. A stopper 713 is provided between the first region 701 and the second region 703. The stopper 713 has a larger diameter than other regions, and restricts the movement of the elastic member 740 in the direction from the first region 701 to the second region 703. In this example, the stopper 713 has a disk shape.

  In addition, the shape of the stopper installation part 711 should just be a shape which can install the stopper 730, and shapes other than a through-hole may be sufficient as it. Moreover, the shape of the stopper 713 should just be a shape which can control the movement of the elastic member 740, and shapes other than a disk shape may be sufficient as it. For example, as the stopper 713, a configuration similar to that of the stopper installation portion 711 can be applied. Instead of the stopper 713, a plurality of through holes similar to the stopper installation portion 711 may be provided so that the position where the movement of the elastic member 740 is regulated can be adjusted.

  The second rod 720 includes a sliding part 721, a connecting arm 723, and a connection part 725. The sliding part 721 is cylindrical. The inner diameter of the cylindrical hollow portion is slightly larger than the outer diameter of the first rod 710 in the first region 701. The connecting arm 723 is fixed to the sliding portion 721. A connecting portion 725 is provided at the distal end portion of the connecting arm 723. The connection part 725 is connected to the second locking member 400.

  The stopper 730 has a shape that can be attached to and detached from the stopper installation portion 711. For example, the stopper 730 has a pin shape. The stopper 730 can be attached and detached at different positions in the extending and contracting direction of the connecting rod 700. The stopper 730 restricts the second rod 720 from sliding in the direction in which the connecting rod 700 extends with respect to the first rod 710. The elastic member 740 has an elastic force and acts on the first rod 710 and the second rod 720 to apply the elastic force in the direction in which the connecting rod 700 extends.

  The stopper 730 may have any shape that can be installed on the stopper installation portion 711, and may have a shape other than the pin shape. The shape of the stopper 730 can be appropriately changed according to the shape of the stopper installation portion 711. Further, when the position of the stopper 713 can be adjusted as described above, a member such as the stopper 713 that cannot be adjusted in position may be provided instead of the stopper installation portion 711 and the stopper 730. In this embodiment, a coil spring is used as the elastic member 740, but a member other than the coil spring may be used as long as the member has the above function.

  The second rod 720 is slidably connected to the first rod 710 by inserting the first rod 710 with the elastic member 740 attached thereto into the sliding portion 721. In addition, in the state where the first rod 710 and the second rod 720 are connected, the elastic member 740 is in a compressed state. In this state, the connecting rod 700 is configured by installing the stopper 730 on the stopper installation portion 711. With this structure, the expansion and contraction operation of the connecting rod 700 is realized. The stopper 730 restricts the second rod 720 from sliding in the direction in which the connecting rod 700 extends. That is, the length of the extended connecting rod 700 is determined by the position of the stopper 730.

  Since the connecting rod 700 can be expanded and contracted, the breakage of the connecting position adjusting mechanism 70 can be suppressed as follows. For example, when the distance between the central working body 10C and the right working body 10R in the unfolded state is larger than the appropriate distance, the second locking member 400 is rotated and changed from the unlocked state to the locked state. The distal end portion 410 of the second locking member 400 hits the first locking member 900. Even in such a case, the connection rod 700 is contracted, so that the connection position adjusting mechanism 70 can be prevented from being broken.

  Moreover, the length of the connecting rod 700 can be adjusted by providing a plurality of stopper installation portions 711. Since the length of the connecting rod 700 can be adjusted, it is possible to suppress problems when changing from the locked state to the unlocked state as follows. For example, in FIG. 4, when the contact member 100 is fixed at a position where it slides leftward, the second locking member 400 also moves leftward together with the contact member 100. At this time, since the second locking member 400 is locked to the first locking member 900, the rotation angle of the second locking member 400 does not change even if the second locking member 400 moves leftward. In such a case, the connecting rod 700 is in a contracted state as compared to the state before the contact member 100 and the second locking member 400 move to the left. Therefore, since the lock state is changed to the unlock state, the distance (angle change amount) that the rotation connecting member 500 should rotate is increased. As a result, before the change from the locked state to the unlocked state, the right working body 10R may be lifted by the rotating connecting member 500 and the connecting position adjusting mechanism 70 may be destroyed.

  Even in such a case, for example, the length of the connecting rod 700 can be shortened by changing the position where the stopper 730 is installed to the stopper installing portion 711 on the second region 703 side, and the locked state is changed to the unlocked state. Therefore, the distance that the rotation connecting member 500 should rotate can be reduced. Therefore, even in the above case, the breakage of the coupling position adjusting mechanism 70 can be suppressed.

  FIG. 8 is an enlarged view of the connection position adjusting mechanism on the side work body side in the view of the agricultural working machine according to the embodiment of the present invention seen from the side. FIG. 9 is an enlarged view of the connection position adjusting mechanism on the side work body side in the view of the agricultural working machine according to the embodiment of the present invention as seen from below. FIG. 8 corresponds to a first side view in which each member is viewed from the direction of arrow B in FIGS. 5 and 6. FIG. 9 corresponds to a second side view in which each member is viewed from the direction of arrow C in FIGS. 5 and 6. As shown in FIGS. 8 and 9, the second holding portion 2430 is provided with an opening 2431. The contact member 100 is provided through the opening 2431. Further, as described above, the connecting portion 540 of the rotation connecting member 500 is connected to the connecting portion 715 of the connecting rod 700. Similarly, the connecting portion 725 of the connecting rod 700 is connected to the second locking member 400.

  Since the contact member 100 passes through the opening 2431, for example, even when the fixing member 300 is removed, it is possible to suppress the contact member 100 from falling off.

[Rotation of side working body and function of rotation connecting member 500]
The rotation operation of the right working body 10R and the function of the rotation connecting member 500 at that time will be described with reference to FIGS. FIGS. 10 to 13 are diagrams illustrating the rotation operation of the side working body with respect to the central working body, and the rotation connecting member in the state in the drawings when the agricultural working machine according to the embodiment of the present invention is viewed from the front. It is a figure explaining the function of. 10 to 13, the positional relationship between the rotation connecting member 500 and the continuous sliding portion 2450 in each state is shown in the regions surrounded by the squares. 10 to 13, the rotation angle of the rotation connecting member 500 is different, but the direction of the rotation connecting member 500 shown in the area surrounded by the square is unified.

  FIG. 10 is a diagram illustrating a state immediately before the right working body 10R in the stored state starts to rotate. In the stored state, the right working body 10R is positioned above the central working body 10C. The rotating cylinder 46b, which is the power source 600, is in the most contracted state. In this state, the right working body 10R is applied with a force that attempts to rotate downward due to its own weight. Therefore, when the power source 600 operates to rotate the right working body 10R (that is, the rotation cylinder 46b extends), the rotation connecting member 500 rotates in the R1 direction, and rotates along with the rotation. When the intermittent sliding portion 510 provided on the connecting member 500 pushes the continuous sliding portion 2450, the rotation of the right working body 10R is started. Therefore, immediately before the right working body 10R starts to rotate, the continuous sliding portion 2450 is in contact with the first region 511 of the intermittent sliding portion 510.

  FIG. 11 is a diagram illustrating a state in which the right working body 10R starts to rotate upward. In this state, the rotation cylinder 46b starts to extend, and the rotation connecting member 500 rotates in the R1 direction. While the state shown in FIG. 10 changes to the state shown in FIG. 11, the continuous sliding portion 2450 moves in the direction of the arrow within the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 in the first region 511. To do.

  From the state of FIG. 11, when the rotation cylinder 46 b further extends, the rotation connecting member 500 further rotates in the R1 direction, and the state shown in FIG. 12 is obtained. FIG. 12 is a view showing a state immediately after the right working body 10R is rotated to the deployed state. In this state, the second locking member 400 is not yet locked to the first locking member 900. While the state of FIG. 11 changes to the state of FIG. 12, the continuous sliding portion 2450 moves in the direction of the arrow in the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 in the first region 511. To do. In the state of FIG. 12, the continuous sliding portion 2450 reaches the vicinity of the boundary between the first region 511 and the second region 513.

  The arrow indicating the locus of the continuous sliding portion 2450 has a U-turn in the middle. This is because the center of gravity of the right working body 10R exceeds the fulcrum by the rotation of the right working body 10R, and the gravity of the right working body 10R This means that the direction of the action received by the rotation connecting member 500 is reversed. In other words, when the continuous sliding portion 2450 slides on the upper first region 511-1, the rotation connecting member 500 lifts the right working body 10R. On the other hand, when the continuous sliding portion 2450 is sliding with the lower first region 511-2, the rotation connecting member 500 supports the right working body 10R that attempts to rotate downward under its own weight. .

  From the state shown in FIG. 12, when the turning cylinder 46b is further extended, the turning connecting member 500 is further turned in the R1 direction to be in the state shown in FIG. Between the state of FIG. 12 and the state of FIG. 13, the continuous sliding portion 2450 moves in the direction of the arrow in the intermittent sliding portion 510 while sliding with the intermittent sliding portion 510 in the second region 513. To do. Since the longitudinal direction of the second region 513 is different from the longitudinal direction of the first region 511, while the continuous sliding portion 2450 slides with the intermittent sliding portion 510 of the second region 513, the rotation connecting member 500. Turns the second locking member 400 without substantially turning the right working body 10R. By this operation, the second locking member 400 changes from the unlocked state to the locked state.

  As described above, the continuous sliding portion 2450 slides with the rotation connecting member 500 in the first region 511 of the rotation connecting member 500 when the right working body 10R rotates. In addition, the continuous sliding portion 2450 is connected to the rotation connecting member 500 in the second region 513 of the rotation connecting member 500 when the second locking member 400 is rotated and locked to the first locking member 900. Slide.

  In the present embodiment, the configuration in which the continuous sliding portion 2450 slides with the rotation connecting member 500 is illustrated, but the present invention is not limited to this configuration. The member that slides on the rotation connecting member 500 may be any member that rotates with the right working body 10R, and may slide with other members fixed to the right working body 10R.

  In the present embodiment, the configuration in which the continuous sliding portion 2450 is fixed to the right working body 10R and the rotation connecting member 500 is rotatably connected to the central working body 10C is exemplified, but the present invention is not limited to this configuration. . For example, contrary to the above, the continuous sliding portion 2450 may be fixed to the central work body 10C, and the rotation connecting member 500 may be rotatably connected to the right work body 10R.

  The present invention has been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention. For example, on the basis of the coupling position adjustment mechanism and the agricultural machine of the present embodiment, those in which those skilled in the art appropriately added, deleted, or changed the design of the present invention have the gist of the present invention. Included in the range. Furthermore, the above-described embodiments can be appropriately combined as long as there is no contradiction between them, and technical matters common to the embodiments are included in the embodiments even if there is no explicit description.

  In addition, even for other operational effects different from the operational effects brought about by the aspects of the above-described embodiments, those that are apparent from the description of the present specification, or that can be easily predicted by those skilled in the art, Of course, it is understood that the present invention provides.

10: Working machine, 10C: Central working body, 10L: Left working body, 10R: Right working body, 12: Top mast, 14: Lower link connecting part, 16: Input shaft, 18: Support frame, 20C, 20L, 20R : Transmission frame, 22: Gear box, 24C: Central shield cover, 24L: Left shield cover, 24R: Right shield cover, 26L: Work rotor, 26La: Rotating shaft, 26Lb: Work claw, 28C: First central leveling body, 28L: first left leveling body, 28R: first right leveling body, 30C: second central leveling body, 30L: second left leveling body, 30R: second right leveling body, 31a: apron control mechanism, 32C: central leveler Control mechanism, 32L: Left leveler control mechanism, 32R: Right leveler control mechanism, 34L: Left extension leveling body rotation Mechanism, 34La: Drive motor section, 34Lb: Rotating arm, 34Lc: Connecting wire, 34R: Right-side extended leveling body rotating mechanism, 36L: Left-side extended leveling body, 36R: Right-side extended leveling body, 38L, 38R: Extended-level leveling body Connecting part, 40C: Central mulching board, 40L: Left mulching board, 40R: Right mulching board, 44, 44a, 44b: Working body rotating mechanism, 46a, 46b: Cylinder for rotation, 48a: First connecting part, 50a: 2nd connection part, 60: Work object rotation arm, 60C: Central work object rotation arm, 60R: Right work object rotation arm, 61: Connection part, 70: Connection position adjustment mechanism, 100: Contact member, 110 : 1st contact part, 111: Reinforcing member, 120: 2nd contact part, 130: Long hole, 140: Connection part, 141: Through-hole, 200: Position adjustment member, 210: tip portion, 300: fixing member, 400: second locking member, 410: tip portion, 500: rotating connecting member, 501: body portion, 510: intermittent sliding portion, 511: first region, 513: Second region, 520, 530, 540, 591, 630, 640: connection portion, 550: support column, 560: support plate, 600: power source, 610: cylinder tube, 620: piston rod, 700: connecting rod, 701: First region, 703: Second region, 710: First rod, 711: Stopper installation portion, 713: Stopper, 715: Connection portion, 720: Second rod, 721: Sliding portion, 723: Connecting arm, 725: Connection part, 730: stopper, 740: elastic member, 900: first locking member, 910: first region, 920: second region, 241 : Pedestal, 2420: first holding unit, 2430: second holding section, 2431: opening 2450: Continuous sliding portion

Claims (16)

A first member having a first locking member;
A second member rotatably connected to the first member;
An abutting member provided on the second member, slidable relative to the second member, and abutting on the first locking member in a state in which the second member is deployed;
A position adjusting member for adjusting the position of the contact member in the sliding movement direction of the contact member;
A fixing member that fixes the position of the abutting member with a member different from the position adjusting member;
A coupling position adjusting mechanism.   The connection position adjustment mechanism according to claim 1, wherein the fixing member acts on the contact member from a direction different from a direction in which the position adjustment member acts on the contact member.   The connection position adjusting mechanism according to claim 2, wherein the fixing member acts on the contact member in a direction from the contact member toward the second member.   A second locking member that is provided on the contact member and is locked to the first locking member in a state in which the second member is deployed to restrict the rotation of the second member relative to the first member; The connection position adjusting mechanism according to any one of claims 1 to 3, further comprising: A pivot connecting member that is pivotably connected to one of the first member and the second member, and is in contact with the other of the first member and the second member;
A power source that is provided on the first member or the second member, and that provides power to the rotary connecting member;
A connecting rod for connecting the rotating connecting member and the second locking member;
Further comprising
The rotating connecting member rotates the second member by the power received from the power source, and transmits the power received from the power source to the second locking member via the connecting rod. The connection position adjustment mechanism according to claim 4. The second locking member is pivotally connected to the contact member;
The other of the first member and the second member is
When the second member rotates, the second connection member slides in the first region of the rotation connection member,
When the second locking member rotates and locks to the first locking member, the second locking member slides with the rotary connection member in a second region of the rotary connection member different from the first region. The connection position adjusting mechanism according to claim 5.   The connection position adjusting mechanism according to claim 5 or 6, wherein the connection rod is extendable. The connecting rod is
A first rod;
A second rod slidably connected to the first rod;
A stopper attached to the first rod and restricting sliding movement of the second rod relative to the first rod in a direction in which the connecting rod extends;
An elastic member for applying an elastic force in a direction in which the connecting rod extends;
The coupling position adjusting mechanism according to claim 5, comprising:   The coupling position adjusting mechanism according to claim 8, wherein the stopper is detachably attached to the first rod at different positions in the expansion / contraction direction of the coupling rod. A first member having a first locking member;
A second member rotatably connected to the first member;
An abutting member that is slidable relative to the second member and that abuts against the first locking member in a state in which the second member is deployed;
A position adjusting member for adjusting the position of the contact member in the sliding movement direction of the contact member;
A second locking member provided on the abutting member and locked to the first locking member in a state in which the second member is deployed, and restricting the rotation of the second member relative to the first member; ,
A coupling position adjusting mechanism. A pivot connecting member that is pivotably connected to one of the first member and the second member, and is in contact with the other of the first member and the second member;
A power source that is provided on the first member or the second member, and that provides power to the rotary connecting member;
A connecting rod for connecting the rotating connecting member and the second locking member;
Further comprising
The rotating connecting member rotates the second member by the power received from the power source, and transmits the power received from the power source to the second locking member via the connecting rod. The connection position adjusting mechanism according to claim 10. The second locking member is pivotally connected to the contact member;
The other of the first member and the second member is
When the second member rotates, the second connection member slides in the first region of the rotation connection member,
When the second locking member rotates and locks to the first locking member, the second locking member slides with the rotary connection member in a second region of the rotary connection member different from the first region. The connection position adjusting mechanism according to claim 11.   The connection position adjusting mechanism according to claim 11 or 12, wherein the connection rod is extendable. The connecting rod is
A first rod;
A second rod slidably connected to the first rod;
A stopper attached to the first rod and restricting sliding movement of the second rod relative to the first rod in a direction in which the connecting rod extends;
An elastic member for applying an elastic force in a direction in which the connecting rod extends;
The coupling position adjusting mechanism according to claim 11, comprising:   The connection position adjusting mechanism according to claim 14, wherein the stopper is detachably attached to the first rod at different positions in the expansion / contraction direction of the connection rod. A connection position adjusting mechanism according to any one of claims 1 to 15,
A first working rotor having working claws provided in the first member;
A second working rotor having working claws provided in the second member;
Agricultural working machine.

Images