JP7236144B2 - work machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a working machine used for agricultural work. More particularly, it relates to a folding working machine having side working bodies pivotably connected to a central working body.

Conventionally, handling of running on a public road with a working machine for agricultural work attached to a traveling body such as a tractor has been unclear. However, with the deregulation of recent years, it has become possible to run a tractor on public roads with a working machine attached, provided that safety parts that meet certain requirements are installed. For example, when a working machine is attached to a tractor, there is a risk that the reverse light, brake light, etc. of the tractor may not be visible from behind. In this case, it is necessary to equip the working machine with a safety component that replaces the tractor's reverse light (hereinafter referred to as "lighting equipment"). Also, when mounting a work machine having a larger overall width (horizontal width) than the tractor, it is necessary to mount a display plate or the like so that the size (position of the end) of the work machine can be known. In other words, the larger the work machine, the more often it is necessary to install safety parts that satisfy certain requirements.

On the other hand, as a work machine for agricultural work, a foldable work machine typified by a puddling work machine is known. The folding type work machine can cultivate a wide range of fields by unfolding the left and right working parts when working, and can be moved and stored by folding the left and right working parts when not working. can be of any size. Such a foldable work machine has high work efficiency, and is therefore in high demand by agricultural workers who have large fields.

However, folding the left and right working parts of the folding work machine raises the height in the vertical direction, and there is a high possibility that the lights of the tractor are hidden. In addition, the height of the folded work machine in the vertical direction also increases the position of the center of gravity. Therefore, it is necessary to consider balance in order to drive on public roads. Furthermore, since the folding work machine is originally large in size, even if the left and right working parts are folded, the width of the work machine tends to be larger than that of the tractor.

For example, Patent Document 1 and Patent Document 2 are known as techniques for making other farm workers and passers-by recognize the width of a folding work machine. These techniques are techniques in which a light-emitting means is provided at a predetermined position of the working machine, and the lighting of the light-emitting means makes other agricultural workers or the like recognize the width of the working machine or the like.

JP 2006-280217 A JP 2014-195422 A

However, the techniques described in Patent Literature 1 and Patent Literature 2 are both intended to make it possible to recognize the size of the working machine when the surroundings become dark, and when traveling on a public road, It does not take into account the regulations of In other words, no consideration has been given to dealing with the case where the lighting equipment of the tractor is hidden by the work machine as described above.

One of the objects of the present invention is to provide a work machine that takes safety standards into account when traveling on public roads.

A working machine according to an embodiment of the present invention includes a central working body and a side working body rotatably connected to the central working body, wherein the side working body is folded. In the stowed state, a security component is attached to the outer end of the lateral working body.

The safety component may be arranged at a position higher than the side working body or outside the side working body in the rear view in the stored state.

The safety component may be detachably attached to the side working body.

A movable protective member may be provided for the safety component. The protective member may be interlocked with an operation of expanding or retracting the side working body.

According to the embodiment of the present invention, it is possible to provide a work machine that takes safety standards into account when traveling on public roads.

1 is a perspective view showing the configuration of a working machine in a first embodiment; FIG. It is a figure which shows the structure of the state which connected the working machine in 1st Embodiment with the traveling body. FIG. 11 is a side view showing the construction of the work machine in the second embodiment in the stored state; FIG. 10 is a diagram showing an example of a configuration of a protection member in the work machine according to the third embodiment; FIG. 11 is a diagram showing an example of a configuration of a dirt removing member in a working machine according to a fourth embodiment; FIG. 11 is a side view showing the construction of a work machine in a fifth embodiment in a stored state; FIG. 12 is a side view showing the construction of the work machine in the sixth embodiment in the stored state; FIG. 20 is a rear view showing the construction of the work machine in the seventh embodiment in the stored state; FIG. 20 is a side view showing the configuration of the work machine in the eighth embodiment in the stored state; FIG. 20 is a rear view showing the construction of a work machine in a ninth embodiment in a stored state; FIG. 21 is a diagram showing the configuration of an outer display panel in the tenth embodiment; FIG. 21 is a side view showing the construction of the work machine in the eleventh embodiment in the stored state; FIG. 20 is a diagram showing the configuration of a goniometer for checking the height of the work implement in the twelfth embodiment;

An embodiment of a work machine of the present invention will be described below with reference to the drawings. However, the work machine of the present invention can be embodied in many different modes, and should not be construed as being limited to the description of the examples shown below.

In the drawings referred to in this embodiment, the same parts or parts having similar functions are denoted by the same reference numerals or similar symbols, and repeated description thereof may be omitted. For example, when the working machine of the present invention is composed of three working bodies, a central working body, a left working body, and a right working body, the number is followed by "C" to indicate that each working body has a part. , “L” and “R” may be attached. Also, the collective term for the left working body and the right working body is sometimes called a "side working body".

In the specification and claims of the present application, "up" indicates the direction away from the field vertically, and "down" indicates the direction vertically toward the field. "Front" indicates the direction in which the traveling machine body is positioned with respect to the working machine, and "rear" indicates the direction opposite to the front by 180 degrees. Also, "left" indicates the left when the traveling machine body faces the direction in which the working machine is positioned as a reference, and "right" indicates the direction opposite to the left by 180 degrees.

In addition, in the specification and claims of the present application, when the center line of the agricultural work machine in plan view is used as a reference, the side closer to the center line is referred to as the "inner side", and the side farther from the center is referred to as the "outer side." ”. Therefore, for example, the left and right working bodies are located at the inner ends (ends facing the central working body) in the unfolded state, while the outer ends in the retracted state are positioned.

<First Embodiment>
[Configuration of work machine 10]
A schematic configuration of the working machine 10 according to the first embodiment will be described in detail below with reference to FIGS. 1 and 2. FIG. FIG. 1 is a perspective view showing the configuration of a working machine 10 according to the first embodiment. FIG. 2 is a diagram showing a configuration in which the working machine 10 in the first embodiment is connected to the traveling machine body 100. As shown in FIG. Specifically, FIG. 2A is a side view showing a configuration in which the working machine 10 according to the first embodiment is connected to the traveling body 100 with the left working body 10L and the right working body 10R folded. FIG. 2(B) is a rear view showing a configuration in which the working machine 10 according to the first embodiment is connected to the traveling machine body in a state in which the left working body 10L and the right working body 10R are folded.

FIG. 2 is a diagram in which only the positions of the left working body 10L and the right working body 10R are changed from those of FIG. . In addition, the numerical value of "200 mm" shown in FIG. 2 should be secured from the road surface to the lower end of the working machine 10 according to safety standards when traveling on a public road with the working machine attached to the traveling machine body. Minimum distance.

As shown in FIG. 1, the working machine 10 according to the present embodiment has a structure divided into three, including a central working body 10C, a left working body 10L and a right working body 10R. The central working body 10C is arranged in the central portion of the working machine 10 and functions as a working machine main body. The left working body 10L and the right working body 10R are attached to both left and right ends of the central working body 10C so as to be vertically rotatable. By rotating the left working body 10L and the right working body 10R obliquely upward, the working machine 10 can be folded over the central working body 10C. can be expanded.

Here, the state in which the left working body 10L and the right working body 10R are folded over the central working body 10C is called a stored state. The stowed state is a state in which the width of the work implement 10 is reduced in a direction orthogonal to the traveling direction of the traveling machine body 100 . A state in which the left working body 10L, the right working body 10R, and the central working body 10C are arranged side by side is called a deployed state. The deployed state is a state in which work implement 10 is extended in a direction perpendicular to the traveling direction of traveling body 100 . In this embodiment, when traveling on a public road with the working machine 10 connected to the traveling machine body 100, the working machine 10 is kept in the stored state. As a matter of course, when the work machine 10 performs farm work, it is in the unfolded state. Therefore, the deployed state can also be called the working state.

Next, the central working body 10C will be described. The central working body 10C includes a top mast 12 and a lower link connecting portion 14 functioning as connecting portions with a traveling machine body 100 such as a tractor, an input shaft 16 to which power is transmitted from the traveling machine body 100, and a central working body 10C extending in the left-right direction. support frame 18, transmission frame (chain case) 20C, gearbox 22, central shield cover 24C, tillage rotor 26C (see FIG. 2(A)), first central ground leveling body 28C, and second central ground leveling body 30C It has

The top mast 12 is provided at the front central portion of the central working body 10C, and the lower link connecting portions 14 are provided at two locations on the front left and right sides of the central working body 10C. The top mast 12 and the lower link connecting portions 14 provided at two locations on the left and right are connected to the top link 101a of the traveling machine body 100 and the lower links 101b provided at two locations on the left and right, respectively. mounted so that it can be raised and lowered. Note that FIG. 2A shows an example in which the work implement 10 and the traveling machine body 100 are connected via an automatic hitch arm 110 attached to the top link 101 a and the lower link 101 b of the traveling machine body 100 .

The input shaft 16 is provided in a gear box 22 provided in the central front portion of the central working body 10</b>C, and inputs power transmitted from the traveling body 100 to the working machine 10 . The input shaft 16 is connected to a PTO shaft (not shown) of the traveling body 100, and power is transmitted from the PTO shaft via a universal joint or the like (not shown).

The support frame 18 also serves as the body frame of the central working body 10C, and extends in the left-right direction with respect to the traveling direction of the traveling body 100 on both the left and right sides of the gear box 22 . Here, a transmission shaft (not shown) is installed inside the support frame 18 arranged between the gearbox 22 and the transmission frame 20C. This transmission shaft transmits power for rotating the tillage rotor 26C from the gear box 22 to the transmission frame 20C.

The central shield cover 24C is provided along the support frame 18 and arranged to cover the top of the tillage rotor 26C. The soil crushed by the tillage rotor 26C collides with the inner wall of the central shield cover 24C to be crushed further, and falls back to the field. In this way, the central shield cover 24C has both the function of preventing scattering of the soil picked up by the tillage rotor 26C and the function of crushing the soil.

The tillage rotor 26C of the central working body 10C has a structure in which a plurality of tillage tines are attached using a flange or a holder to a rotating shaft (not shown) rotatably supported under the central shield cover 24C. have Power input from the input shaft 16 is changed in the gear box 22, transmitted through the transmission shaft in the support frame 18, the transmission frame 20C, etc., and converted into rotary motion of the tillage rotor 26C.

The first central leveling body 28C is a member rotatably attached to the central shield cover 24C, and is also called an apron. The second central leveling body 30C is a member attached to the first center leveling body 28C so as to be vertically rotatable, and is also called a leveler. The first central leveling body 28C serves as a cover for returning mud and soil scattered by the rotation of the tillage rotor 26C of the central working body 10C to the field, and also serves as a cover for carrying out leveling work by pressing the second central leveling body 30C against the field. It plays a role as a component. The second central leveling body 30C plays a role as a ground leveling member that levels the surface of the field by directly contacting the field.

Next, the left working body 10L will be described. The left working body 10L includes a left shield cover 24L, a tillage rotor 26L arranged below the left shield cover 24L (see FIG. 2B), a first left leveling body 28L, a second left side leveling body 30L, and a left extension. A ground leveling body 36L is provided. The roles played by the left side shield cover 24L, the first left side leveling body 28L, and the second left side leveling body 30L are the same as those of the corresponding elements in the central working body 10C described above, and thus description thereof will be omitted here. . The left extended ground leveling body 36L is provided by extending from the end of the left side working body 10L in the left direction of the working machine 10, and is responsible for leveling the area outside the left side working body 10L. The second left ground leveling body 30L and the left extended ground leveling body 36L are rotatably connected, and are rotatable so that the left extended ground leveling body 36L is folded toward the second left side ground leveling body 30L.

Next, the right working body 10R will be described. The right working body 10R includes a right shield cover 24R, a tillage rotor 26R arranged below the right shield cover 24R (see FIG. 2B), a first right leveling body 28R, a second right leveling body 30R, and a right extension. A ground leveling body 36R is provided. Here, the roles played by the right shield cover 24R, the first right ground leveling body 28R, the second right ground leveling body 30R, and the right extended ground leveling body 36R are the same as the corresponding elements in the left working body 10L described above. Therefore, the description here is omitted.

Further, the work machine 10 according to the present embodiment includes the central shovel plates 40Ca and 40Cb, the left shovel plate 40L, and the right shovel plate 40R for the central working body 10C, the left working body 10L, and the right working body 10R, respectively. . These are boards for controlling the flow of water (actually, the flow of water containing soil) generated during puddling work, and by providing these mulching boards, the finish of the field surface can be improved.

For example, the central mulching plates 40Ca and 40Cb are provided at a position to return soil to ruts such as tires of the traveling body 100 traveling in front of the working machine 10, and contribute to flattening the undulations of the field caused by the ruts. In addition, the left side shovel board 40L and the right side shovel board 40R draw in the surrounding water flow to the back side of each shovel board while gathering soil inward. As a result, even if straw or the like floats outside the ends of the left working body 10L and the right working body 10R, it is pulled into the respective tillage rotors by the water flow, contributing to the improvement of the finish of the field surface.

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 through the working body rotating mechanisms 44a and 44b provided at both ends of the central working body 10C. is stored or deployed. At that time, the first central ground leveling body 28C and the first left ground leveling body 28L, and the first center grounding body 28C and the first right ground leveling body 28R are connected by first connecting portions 48a and 48b, respectively. The second center leveling body 30C and the second left side leveling body 30L, and the second center leveling body 30C and the second right side leveling body 30R are connected by the second connecting parts 50a and 50b, respectively.

[Configuration example of safety parts]
As shown in FIG. 2, the working machine 10 of the present embodiment includes security parts on the left working body 10L and the right working body 10R. In this specification, the term "safety parts" refers to parts that must be specified in order to meet safety standards when traveling on public roads with a work machine connected to a traveling body such as a tractor. Safety parts include lamps, reflectors, outer display plates that clearly indicate the outer edge of the work machine, and signs indicating that the machine is subject to restrictions that are conditions for relaxation of safety standards.

This embodiment shows an example in which lamps 52 and 54 are mounted as security parts. The lamps 52 and 54 provided in the working machine 10 of the present embodiment are safety parts that substitute for the lamps (including lamps and reflectors) 102 of the traveling body 100 . When the working machine 10 is connected to the rear part of the traveling machine body 100 and travels on a public road, the working machine 10 may hide the lamps 102 of the traveling machine body 100 from the vehicle behind. In such a case, the lamps 52 and 54 play a role of transmitting the vehicle width, the presence or absence of brake operation, etc. to the rear vehicle instead of the lamps 102 of the traveling body 100 .

As shown in FIG. 2B, in the working machine 10 of the present embodiment, the lighting device 52 is attached to the outer end of the left working body 10L of the working machine 10 in the stored state, and the lighting device 54 , is attached to the outer end portion of the right working body 10R of the working machine 10 in the stored state. The outer side of the lamp 52 may be separated from the outermost position of the left working body 10L, and may be within 40 cm from the outermost position. This point is the same for the lamp 54 as well. Also, in order to improve visibility for vehicles behind, it is preferable to arrange the lamps 52 and 54 at a position higher than the side working bodies (the left working body 10L and the right working body 10R) in a rear view. In FIG. 2(B), the lamps 52 and 54 are arranged so as not to protrude outward from the side working body. The lamps 52 and 54 may be arranged at positions outside.

In the present embodiment, an example including three types of lamps, ie, a direction indicator, a brake light, and a reversing light, is shown as the lighting devices 52 and 54, but the lighting devices are not limited to this example. For example, the lighting devices 52 and 54 may be provided with at least one of direction indicators, brake lights, tail lights, width lights, and reversing lights.

In addition, in the working machine 10 of the present embodiment, the lamps 52 and 54 operate in conjunction with the lamps 102 of the traveling body 100 . For example, brake lights (brake lamps) included in the lamps 52 and 54 are controlled to light up when the traveling body 100 brakes. In this case, the control signal for controlling the lighting operation of the lamps 102 of the traveling body 100 may be used as the control signal for controlling the lighting operation of the lamps 52 and 54 . In order to transmit such a control signal from the traveling body 100 to the working machine 10, wired communication or wireless communication may be used. For example, since the traveling body 100 has terminals for extracting control signals for the lamps 102, such terminals can be used.

Further, in the present embodiment, an example in which two lights 52 and 54 are provided for the working machine 10 is shown, but the invention is not limited to this example, and for example, only one reverse light may be provided. . When only one lamp is arranged, there is no particular restriction on the position. However, when two lights are arranged, it is desirable to arrange them near the outer ends of the left working body 10L and the right working body 10R so that the ends of the working machine 10 can be recognized.

Since the lighting devices 52 and 54 described above are safety parts that substitute for the lighting devices 102 of the traveling machine body 100, even if the working machine 10 is mounted, the lighting devices 102 of the traveling machine body 100 can be visually recognized from behind. does not need to be worn. In preparation for such a case, in the working machine 10 of the present embodiment, the lamps 52 and 54 are detachably attached to the left working body 10L and the right working body 10R, respectively.

There is no particular limitation on the method of detachably mounting the lamps 52 and 54. For example, magnets, suction cups, or fasteners (such as bolts and nuts) may be used to attach the lamps 52 and 54 to some of the components of the work machine 10. A fixing method may be adopted. As components to which the lamps 52 and 54 can be attached, for example, shield covers, chain cases, side shields (side plates), etc. of the left working body 10L or the right working body 10R are suitable. Further, as other components, brackets for mounting the above-described central shovels 40Ca and 40Cb and brackets for mounting a stand used when the working machine 10 is transported may be used. Of course, it is also possible to provide a separate bracket for mounting the safety component.

In this embodiment, an example in which the lamps 52 and 54 are detachably attached has been shown, but they may be fixed and attached in a non-detachable manner. For example, when the lighting device 52 is arranged at the outer end of the left working body 10L as in the present embodiment, it projects in front of the left shield cover 24L in the traveling direction of the working machine 10 in the unfolded state. , the lamp 52 is fixed. In this case, the lighting device 52 does not particularly hinder the tillage work. In this manner, the lamp 52 can be fixedly mounted as long as it is mounted at a position that does not interfere with tillage work. This point is the same for the lamp 54 as well.

Further, as described above, when the lights 102 of the traveling body 100 can be visually recognized from behind even when the work machine 10 is mounted, it is not necessary to mount the lights (for example, the lights 52 and 54) on the work machine 10. do not have. In this case, there is a problem if the lights 102 of the traveling body 100 and the lights of the working machine 10 are visible together. In such a case, the lighting devices 102 of the traveling machine body 100 or the lighting devices of the working machine 10 may be provided with a cover member for making them invisible from behind. In addition, when the lights 102 of the traveling machine body 100 can be visually recognized from behind, control may be performed such that the lights 52 of the working machine 10 and the like are not turned on.

As described above, the working machine 10 of the present embodiment includes a central working body 10C and side working bodies (left working body 10L and right working body 10R) rotatably connected to the central working body 10C. Including and in the stowed state in which the side work body is folded, the security components (lights 52 and 54) are attached to the outer ends of the side work body. Therefore, when traveling on a public road with the working machine 10 connected to the traveling machine body 100, even if the lighting equipment 102 of the traveling machine body 100 is hidden from the vehicle behind by the working machine 10, the safety standard is satisfied. be able to. As described above, according to the present embodiment, it is possible to provide the working machine 10 that takes into consideration safety standards when traveling on public roads.

<Second embodiment>
This embodiment shows an example in which the lamps 52 and 54 shown in FIG. 2 are rotatable. FIG. 3 is a side view showing the construction of the work machine 10a in the second embodiment in the stored state. Specifically, FIG. 3A shows a state in which the lighting device 52 is used in the housed state of the working machine 10a. FIG. 3(B) shows a state in which the lamp 52 is tilted forward (in the traveling direction of the work implement 10a) in the housed state of the work implement 10a. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment. Also, for convenience of explanation, in FIGS. 3(A) and 3(B), illustration of some constituent elements such as the shovel board is omitted. In the present embodiment, the lighting device 52 will be described as an example, but the same applies to the lighting device 54 as well.

As described in the first embodiment, when the work implement 10a is deployed, the lamp 52 is fixed in front of the left shield cover 24L so as to protrude in the traveling direction of the work implement 10a. In this case, although it does not interfere with the work, the lighting surface of the lamp faces downward and faces the field surface. Therefore, if left as it is, there is a possibility that the lighting surface of the lighting device 52 will become dirty due to splashing of soil or mud during work. In this embodiment, in preparation for such a case, as shown in FIG. By laying down the lamp 52 above the shield cover 24L, it is possible to prevent the lamp surface from being soiled with soil or mud. The lamps 52 and 54 may be configured to be electrically driven and rotated, or may be configured to be manually rotated.

<Third Embodiment>
This embodiment shows an example in which a movable protection member 62 is provided for the lamps 52 and 54 shown in FIG. FIG. 4 is a diagram showing an example of the configuration of the protection member 62 in the working machine 10b according to the third embodiment. Specifically, FIG. 4A shows a state in which the lighting device 52 is used in the housed state of the working machine 10b. FIG. 4B shows a state in which the lighting surface of the lamp 52 is covered with the protective member 62 in the unfolded state of the working machine 10b. 4(C) and 4(D) are a side view and a front view, respectively, showing a specific configuration of the lamp 52 having the movable protective member 62. FIG. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment. Also, for convenience of explanation, in FIGS. 4(A) and 4(B) , illustration of some constituent elements such as the shovel board is omitted. In the present embodiment, the lighting device 52 will be described as an example, but the same applies to the lighting device 54 as well.

As shown in FIG. 4(A), when the work machine 10b is stored and the lighting device 52 is in use, the protective member 62 is rotated to a position where the lighting surface of the lighting device 52 is not covered. . As shown in FIG. 4B, in the unfolded state (working state) of the working machine 10b, while the lamp 52 is not in use, the protective member 62 is rotated so that the lamp surface of the lamp 52 is exposed. Place it in a covering position. As a result, even if soil or mud splashes from the field surface during plowing work, the lighting surface of the lamp 52 can be protected from the soil or mud by the protective member 62 .

As shown in FIGS. 4(C) and 4(D), the protection member 62 is attached to the lamp 52 so as to be rotatable about a pivot point 62a. In this embodiment, an electric motor 62b is connected to the pivot point 62a, and the rotation of the protective member 62 is controlled by the power of the electric motor 62b. However, the present invention is not limited to this example, and a configuration in which the protection member 62 is manually rotated may be employed.

Also, the protective member 62 can be driven independently by the electric motor 62b, but it may be opened and closed in conjunction with the operation of other components. For example, in conjunction with the opening/closing operation of the left working body 10L or the right working body 10R, or the opening/closing operation of the left extended ground leveling body 36L or the right extended ground leveling body 36R, it operates to shield the lighting surface of the lamp 52. good too. In this case, the driving force for the opening/closing operation of the protective member 62 may be a motor that operates in conjunction with the operation of other components, or a link mechanism.

In this embodiment, the lighting surfaces of the lamps 52 and 54 can be covered by rotating the protective member 62, and the lighting surfaces can be prevented from being soiled with soil or mud during tillage work.

<Fourth Embodiment>
This embodiment shows an example in which a dirt removing member 64 is provided for the lamps 52 and 54 shown in FIG. FIG. 5 is a diagram showing an example of the configuration of the dirt removing member 64 in the working machine 10c according to the fourth embodiment. Specifically, FIG. 5A is a side view of the working machine 10c in the stored state. FIG. 5(B) is a front view showing the configuration of the dirt removing member 64 provided on the working machine 10c, and FIG. 5(C) is a side view showing the configuration of the dirt removing member 64. As shown in FIG. FIG. 5(D) is a front view showing the configuration of the dirt removing member 65 provided on the working machine 10c. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment. Also, for convenience of explanation, in FIG. In the present embodiment, the lighting device 52 will be described as an example, but the same applies to the lighting device 54 as well.

As shown in FIGS. 5(A) to 5(C), the lamp 52 of this embodiment is provided with a dirt removing member 64 . The dirt removing member 64 of this embodiment includes wipers 64a and 64b, a support member 64c, a rotation fulcrum 64d, and an electric motor 64e. The wipers 64a and 64b are fixed to a rotation fulcrum 64d, and when the rotation fulcrum 64d is rotated by the power of the electric motor 64e, the wipers 64a and 64b swing left and right as indicated by arrows in FIG. 5(B). By this operation, the dirt removing member 64 can wipe off dirt and mud adhering to the lighting surface of the lighting device 52 .

Further, as shown in FIG. 5(D), unlike the dirt removing member 64 which physically removes soil and mud, the dirt removing member 65 sprays water or washer fluid from the nozzle onto the lamp surface. It is configured to drop soil and mud.

<Fifth Embodiment>
This embodiment shows an example of a work machine in which lamps 52 and 54 are attached in a manner different from that in FIG. FIG. 6 is a side view showing the configuration of the working machine 10d in the fifth embodiment in the stored state. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment. Also, for convenience of explanation, in FIG. 6, illustration of some constituent elements such as the shovel board is omitted. In the present embodiment, the lighting device 52 will be described as an example, but the same applies to the lighting device 54 as well.

In the working machine 10d shown in FIG. 6, the lighting device 52 is fixed to a support member 66, and the support member 66 is attached to a bracket 67 for attaching the central shovel plate 40Ca. In other words, the working machine 10d is configured so that the bracket for attaching the central shovel 40Ca shown in FIG. As a result, the lamp 52 as a safety component can be attached to the existing work machine without separately providing a bracket for fixing the lamp 52 .

In addition, although FIG. 6 shows an example using a bracket for attaching the central shovel board 40Ca, the present invention is not limited to this example. For example, a stand is used when the working machine 10d is removed from the traveling body 100 or transported, and a bracket for attaching such a stand can also be used as a bracket for mounting the lamp 52. It is possible. When the bracket for attaching the central earth shroud 40Ca also serves as the stand bracket, it can also serve as the bracket for attaching the lamp 52, so that the constituent elements of the existing work machine can be effectively utilized.

<Sixth Embodiment>
This embodiment shows an example of a work machine in which lamps 52 and 54 are attached in a manner different from that in FIG. FIG. 7 is a diagram showing the construction of the working machine 10e in the sixth embodiment in the stored state. Specifically, FIG. 7(A) is a side view of the working machine 10e in the stored state, and FIG. 7(B) is a top view of the lamp 52 of FIG. 7(A). In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment. Also, for convenience of explanation, in FIG. In the present embodiment, the lighting device 52 will be described as an example, but the same applies to the lighting device 54 as well.

As shown in FIG. 7(A), when the working machine 10e is in the retracted state, the support pin 69 is fixed at the highest position along the elongated hole 68a provided on the upper surface of the shield cover 24, so that the lamp is lighted. Container 52 can be used as a security component. The support pin 69 can be fixed using, for example, a knob nut 70 shown in FIG. 7(B).

Although not shown, when the working machine 10e is in the unfolded state, the lamp 52 is fixed at an arbitrary position above the left shield cover 24 by moving the support pin 69 along the long hole 68a. can do. As a result, when the work implement 10e is deployed to perform tillage work, the lamp 52 can be fixed at a position above the left shield cover 24 (for example, position "A" in FIG. 7A). , it is possible to prevent the lighting surface of the lighting device 52 from being soiled with soil or mud.

<Seventh Embodiment>
In this embodiment, in addition to the lamps 52 and 54, an example of a work machine equipped with a reflector 55 as a safety component is shown. FIG. 8 is a rear view showing the construction of the work machine 10f in the seventh embodiment in the stored state. Specifically, FIG. 8(A) is a rear view showing the overall configuration of the working machine 10f in the stored state, and FIG. 8(B) is an enlarged view of the vicinity of the reflector 55 in FIG. 8(A). It is a diagram. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment.

In the working machine 10f of the present embodiment, reflectors 55 are mounted inside the U-shaped members 72 of the second connecting portions 50a and 50b shown in FIG. Any member may be used as the reflector 55 as long as it has a reflective substance and has a function of reflecting external light. The reflector 55 in this embodiment is configured to reflect red light when viewed from the rear side (rear side) and reflect white light when viewed from the front side.

In the configuration of the present embodiment, when the working machine 10f is in the stowed state, the second left side leveling body 30L is substantially parallel to the vertical direction. form. Therefore, by attaching the reflector 55 to the inside of the U-shaped member 72, it is possible to make the rear vehicle recognize the outer end of the work implement 10f. When the work implement 10f is in the unfolded state, the U-shaped member 72 is fitted into a part of the second central ground leveling body 30C. It does not interfere with operation.

<Eighth Embodiment>
In the present embodiment, an example of a work machine equipped with safety components having other configurations in place of the lamps 52 and 54 of the first embodiment is shown. FIG. 9 is a side view showing the configuration of the working machines 10g and 10h in the eighth embodiment in the stored state. Specifically, FIG. 9A is a side view showing the overall configuration of work machine 10g in the stored state, and FIG. 9B is a side view showing the overall configuration of work machine 10h in the stored state. is. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment.

A work machine 10g shown in FIG. 9(A) includes a projector 74 including a diffusion plate 74a and an optical fiber 74b as safety parts. Specifically, the light projector 74 of this embodiment includes a diffusion plate 74a and optical fibers 74b, as well as a convex lens 74c and a concave lens 74d.

In the working machine 10g of the present embodiment, the light emitted by the lamps 102 of the traveling machine body 100 is transmitted rearward via the light projector 74. As shown in FIG. Specifically, the light emitted by the lamps 102 is collected by the convex lens 74c and transmitted to one end of the optical fiber 74b. The light transmitted to one end of the optical fiber 74b becomes parallel light by a concave lens 74d arranged at the tip of the other end, and is diffused rearward by the diffusion plate 74a. Thus, even if the lights 102 of the traveling machine body 100 cannot be visually recognized from behind by the working machine 10g, the light emitted from the lights 102 can be visually recognized from behind through the floodlight 74.例文帳に追加

A work machine 10h shown in FIG. 9(B) includes a projector 76 including at least two reflecting mirrors 76a and 76b as a safety component. In the working machine 10h of the present embodiment, the light emitted by the lamps 102 of the traveling body 100 is transmitted rearward via the light projector 76. As shown in FIG. Specifically, the light emitted by the lamps 102 is transmitted rearward via the reflecting mirrors 76a and 76b. Thus, even if the lights 102 of the traveling machine body 100 cannot be visually recognized from behind by the working machine 10h, the light emitted from the lights 102 can be visually recognized from behind through the floodlight 76.例文帳に追加

<Ninth Embodiment>
In this embodiment, a safety component that is required when the overall width (width in the left-right direction) of the working machine exceeds a predetermined width will be described. FIG. 10 is a rear view showing the construction of the work machine 10i in the ninth embodiment in the stored state. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment.

Current safety standards stipulate that when the overall width of a working machine exceeds 2.5 m, the overall width and operating speed of the working machine must be clearly indicated by safety parts so as to satisfy certain conditions. In this embodiment, it is assumed that the total width of the work implement 10i in the stored state exceeds 2.5 m.

In addition to the lamps 52 and 54 shown in FIG. 83, and reflectors 84 and 85 that define the outer edge of the implement. Further, the working machine 10i is provided with a display board that clearly indicates the overall width of the working machine, the operating speed, etc. as a sign 86 indicating that the working machine 10i is subject to the restrictions that are the conditions for relaxation of safety standards.

The outer display boards 80 and 81 are display boards having a red and white stripe pattern, and are provided at the outer end of the left working body 10L and the outer end of the right working body 10R. The lamps 82 and 83 are provided so as to protrude outward from the outer end of the left working body 10L and the outer end of the right working body 10R so as to clearly show the end of the working machine 10i. In addition, reflectors 84 and 85 are provided near the outer edges of outer display plates 80 and 81, respectively. However, the reflectors 84 and 85 may be provided on other parts of the left working body 10L and the right working body 10R instead of the outer display plates 80 and 81. FIG. The lamps 82 and 83 and the reflectors 84 and 85 are both visible red when viewed from the back side (rear) and white when viewed from the front.

The content of the sign 86 may change depending on the model of the work machine, such as the overall width and operating speed of the work machine, and the combination of the traveling machine body and the work machine. Therefore, it is desirable to have a configuration that can be easily changed to arbitrary contents according to the model of the working machine. For example, by replacing the numbers with a fitting type panel or a panel with magnets, it is possible to easily change the content simply by replacing the panel. Further, the display contents may be changed by displaying the indicator 86 on a display device such as a liquid crystal panel.

As in the present embodiment, even if the overall width of the working machine 10i exceeds the predetermined width, the working machine 10i is connected to the traveling body 100 by attaching a safety component that satisfies a certain condition to the working machine 10i. can run on public roads.

<Tenth embodiment>
This embodiment shows an example in which the outer display plates 80 and 81 that indicate the outer ends of the working machine of the ninth embodiment are foldable. FIG. 11 is a diagram showing the configuration of outer display panels 80a and 80b in the tenth embodiment. In this embodiment, the outer display panel 80 will be described as an example, but the same applies to the outer display panel 81 .

In the example shown in FIG. 11A, the outer display panel 80a is folded along line segments a, b, and c provided obliquely to each side. In the example shown in FIG. 11(B), the outer display panel 80b is folded along line segments a, b, and c provided perpendicularly or parallel to each side.

As described above, by making the outer display plates 80 and 81 foldable, it is possible to store them compactly when there is no need to clearly indicate such as during tillage work.

<Eleventh embodiment>
This embodiment shows an example of working machines 10j, 10k, and 10m in which the sign 86 shown in FIG. 10 in the ninth embodiment is specified in a manner different from that in the ninth embodiment. FIG. 12 is a side view showing the construction of the work machines 10j, 10k and 10m in the eleventh embodiment in the stored state. Specifically, FIGS. 12(A), 12(B) and 12(C) are side views showing the overall configuration of the working machines 10j, 10k and 10m in the stored state, respectively. In addition, in this embodiment, the same code|symbol may be used and description may be abbreviate|omitted about the same component as the component demonstrated in 1st Embodiment.

A working machine 10j shown in FIG. 12A is provided with an electric bulletin board 87 behind the traveling body 100 (for example, the rear window of the traveling body 100). The work machine 10j can display information on the electric bulletin board 87 indicating that the work machine 10j is subject to restrictions that are conditions for relaxation of safety standards.

A work machine 10k shown in FIG. 12B is provided with a screen 88 behind the traveling body 100, and a projector 89 is provided on the work machine 10k. The work machine 10k can use the projector 89 to display on the screen 88 information indicating that the work machine 10k is subject to restrictions that are conditions for relaxation of safety standards.

A working machine 10m shown in FIG. The work machine 10m can use the reversing flap type display device 90 to display information indicating that the work machine 10m is subject to restrictions that are conditions for relaxation of safety standards.

As described above, the work implements 10j, 10k, and 10m of the present embodiment display, on the rear window of the traveling body 100, a sign or the like indicating that they are subject to restrictions that are conditions for relaxation of safety standards. Even if it exceeds 2.5 m, it is possible to travel on a public road while being connected to the traveling machine body 100 .

<Twelfth embodiment>
As shown in FIG. 2 in the first embodiment, when traveling on a public road with the working machine 10 connected to the traveling machine body 100, there is a gap between the road surface and the lower end of the working machine 10 according to safety standards. A distance of 200 mm or more is required. In this case, in order to lift (raise) the working machine 10 to a height of 200 mm or more after connecting the working machine 10 to the traveling machine body 100, it is necessary to operate a lift lever or the like on the traveling machine body 100 side. becomes. However, it is difficult for a worker to determine whether work implement 10 has been lifted to a height of 200 mm or more while sitting in the driver's seat of traveling machine body 100 .

In the above case, for example, a rod-shaped member with scales or marks is prepared in advance, the rear window of the traveling machine body 100 is opened, and the rod-shaped member is erected on the road surface so that the working machine 10 can be seen from the road surface. can know the height of Specifically, when the lower end of the working machine 10 is positioned 200 mm from the road surface, a rod-shaped member is erected on the road surface to mark the position at the same height as the upper end of the top mast 12 . As a result, if a rod-shaped member is erected on the road surface from the rear window of the traveling machine body 100 and the work machine 10 is lifted until the position of the mark and the position of the upper end of the top mast 12 match, the work machine 10 can be lifted 200 mm from the road surface. can be lifted to a height of

As another method, for example, a rectangular member having a height of 200 mm is prepared, and after lifting the working machine 10 to a sufficient height, the rectangular member is arranged below the working machine 10 . After that, by lowering the work machine 10 until the lower end of the work machine 10 hits the rectangular member, the work machine 10 can be kept lifted to a height of 200 mm from the road surface.

Still another method is to use a goniometer. FIG. 13 is a diagram showing the configuration of goniometers 92 and 93 for checking the height of work implement 10 in the twelfth embodiment.

A goniometer 92 shown in FIG. 13A has a housing 92a provided with a scale gauge 92b, a marker 92c and a pointer 92d. The marker 92c can be moved to any position on the scale gauge 92b, and by aligning the direction indicated by the pointer 92d with the marker 92c, it is possible to recognize that the goniometer 92 is tilted at a predetermined angle. Specifically, the pointer 92d has a weight built into the tip 92e and always points in the direction of gravity. Therefore, if the marker 92c is moved to a position with an angle of 20 degrees, for example, and the direction indicated by the needle 92d matches the position of the marker 92c, it can be seen that the goniometer 92 is tilted at an angle of 20 degrees.

Similarly, a goniometer 93 shown in FIG. 13B has a housing 93a provided with a scale gauge 93b, a marker 93c and a needle 93d. A weight is built in an end portion 93f opposite to the tip 93e of the pointer 93d. In this case as well, it is possible to recognize that the goniometer 93 is tilted at a predetermined angle by aligning the direction indicated by the pointer 93d with the position of the marker 93c.

FIG. 13(C) is an example of a work machine 10n equipped with a goniometer 92 shown in FIG. 13(A). As shown in FIG. 13(C), the working machine 10n has a goniometer 92 attached to a part of the components (here, the top mast 12). In the example shown in FIG. 13(C), the lower end of the work machine 10n is previously lifted to a height of 200 mm from the road surface, and the marker 92c of the goniometer 92 is aligned with the pointer 92d. . As a result, the worker can lift the working machine 10n to a height of 200 mm from the road surface by aligning the marker 92c with the indicator 92d while looking at the goniometer 92 from inside the cabin of the traveling machine body.

<Thirteenth embodiment>
In the present embodiment, an example of using "AG-PORT", which is a common standard for communication control defined by the Japan Agricultural Machinery Manufactures Association, as a control signal for safety components is shown. For example, by using the “AG-PORT” in the first embodiment, it becomes possible to exchange control signals between the traveling machine body 100 and the working machine 10 by two-way communication. As a result, it is possible to control safety parts based on signals detected by the working machine 10 or the traveling machine body 100 .

For example, using "AG-PORT", it is detected that the traveling machine body 100 or the work machine 10 is in a preparation stage for traveling on a public road, and based on such a detection signal, movement control of safety parts, lighting control, etc. It is possible to As a signal for detecting that the traveling body 100 is in a preparation stage for traveling on a public road, there is a signal for detecting that the shift lever has been set to "High", and traveling by a Global Navigation Satellite System (GNSS). Examples include a signal for detecting that the aircraft 100 has entered (or entered) a public road. Signals for detecting that the work implement 10 is in the preparation stage for traveling on public roads include a signal for detecting the operation status of the PTO shaft, a signal for detecting that the left and right brake pedals are connected, and the like.

As described above, by detecting the current status of the traveling machine body 100 or the working machine 10 using the "AG-PORT" and using it to control the operation of safety parts, for example, the traveling machine body 100 and the working machine 10 can Even when driving on public roads with automatic driving, it is possible to specify safety parts so as to meet safety standards.

Each of the embodiments described above as embodiments of the present invention can be implemented in combination as appropriate as long as they do not contradict each other. Appropriate additions, deletions, or design changes made by those skilled in the art based on each embodiment are also included in the scope of the present invention as long as they have the gist of the present invention.

In addition, even if there are other effects that are different from the effects brought about by the aspects of each embodiment described above, those that are obvious from the description of this specification or those that can be easily predicted by those skilled in the art, Naturally, it is understood that it is brought about by the present invention.

Reference Signs List 10, 10a to 10k, 10m, 10n working machine 10C central working body 10L left working body 10R right working body 12 top mast 14 lower link connecting portion 16 input shaft 18 Support frame 20C Transmission frame 22 Gearbox 24C Central shield cover 24L Left shield cover 24R Right shield cover 26C, 26L, 26R Tillage rotor 28C First central leveling body 28L First left side leveling body 28R... First right side leveling body 30C... Second central leveling body 30L... Second left side leveling body 30R... Second right side leveling body 36L... Left extension leveling body 36R... Right side extension leveling body Body, 40Ca, 40Cb... Central shovel board 40L... Left shovel board 40R... Right shovel board 44a... Working body rotating mechanism 46a... Cylinder for rotating 48a... First connecting portion 50a... Second connecting portion, 52, 54... Lamp 55... Reflector 62... Protective member 62a... Rotation fulcrum 62b... Electric motor 64... Dirt removing member 64a... Wiper 64c... Support member 64d... Rotation fulcrum 64e... Electric Motor 65 Dirt removing member 66 Supporting member 67 Bracket 68a Elongated hole 69 Supporting pin 70 Knob nut 72 U-shaped member 74 Projector 74a Diffusion plate 74b Optical fiber 74c Convex lens 74d Concave lens 76 Projector 76a Reflector 80, 80a, 80b, 81 Outer display panel 82 Lighting device 84 Reflector 86 Conditions for relaxation of safety standards 87... Electronic bulletin board 88... Screen 89... Projector 90... Reversing flap type display 92, 93... Angle meter 92a, 93a... Housing 92b, 93b Scale gauge 92c, 93c Marker 92d, 93d Pointer 92e, 93e Tip 93f End 100 Traveling body 101a Top link 101b Lower link 102 Lamps 110 auto hitch arm

Claims (6)

A central working body including a connecting portion with a traveling body , and a side working body vertically rotatably connected to the central working body, wherein the central working body and the side working body are: A work machine having a tillage rotor rotated by power transmitted from the traveling machine body ,
A work machine, wherein a safety component is mounted at a position higher than the side working body in a rear view of the side working body in a folded and stored state. The running body includes a lamp at the rear,
The work machine according to claim 1, wherein the lighting device included in the safety component operates in conjunction with the lighting device of the traveling body. The work machine according to claim 1 or 2, wherein the safety component is arranged outside the side working body in a rear view in the stored state. The working machine according to any one of claims 1 to 3, wherein the safety component is detachably attached to the side working body. The work machine according to any one of claims 1 to 4, further comprising a movable protection member that can be arranged at a position covering a lighting surface of the lighting device included in the safety component. 6. The working machine according to claim 5, wherein said protective member interlocks with an expanding operation or a retracting operation of said side working body.

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