JP4673914B2 - Working machine - Google Patents

Description

  The present invention relates to a work machine including a working unit such as a tilling claw below the machine body and a detachable case body covering the work unit.

Proposal of a carrying case (hereinafter referred to as “case body”) for storing the working unit to prevent the earth and sand adhering to the working unit from falling on the floor of the vehicle when the work implement is loaded on the vehicle and transported. (For example, refer to Patent Document 1).
JP 2003-212160 A

The case body of patent document 1 is formed in the box shape while being provided with the upper opening part opened upwards. When the working unit is stored in the case body, the working machine is lifted, the working unit is disposed above the case body, and the working unit is stored in the case body from the upper opening of the case body.
In this way, by loading the working machine on the floor of the vehicle with the working part stored in the case body, it is possible to prevent the earth and sand adhering to the working part from falling on the floor of the vehicle.

However, the working machine of Patent Document 1 needs to lift the working machine up above the case body and house the working part in the case body when the working unit is housed in the case body.
As described above, since the working machine is lifted above the case body, a burden is placed on the operator when the working unit is stored in the case body, and there is room for improvement from this viewpoint.

  This invention makes it a subject to provide the working machine which can accommodate the working part of a working machine in a case body easily.

  According to the first aspect of the present invention, in the working machine in which the working unit is provided below the machine body, a support extension part is provided below the machine body, and the horizontal extension part of the support extension part is grounded. A stand means capable of supporting the work machine in a transporting posture or a storage posture; and a box-like case body that is attached to the stand means and can store the working portion, wherein the support extension portion of the case body The case body is provided with a fitting groove portion that can fit the support extension portion from the outside of the case body, and the fitting groove portion is fitted to the support extension portion. Is placed on the support extension.

  According to a second aspect of the present invention, the fitting groove is extended along the support extension from the bottom of the case body to the rear wall or from the bottom of the case body to the front wall. The fitting groove portion is fitted to the support extension portion by being inserted between the working portion and the support extension portion while being rotated along the support extension portion.

  According to a third aspect of the present invention, the stand means includes a moving wheel, and the working unit is floated in a state where the wheel and the horizontal extending portion are grounded.

  According to a fourth aspect of the present invention, the case body includes a gripping portion projecting so as to be gripped when the case body is attached to and detached from the support extension portion at the front portion of the left and right side wall portions, and the left and right side wall portions. Among the portions, a rear portion is provided with a recess for preventing interference that is recessed toward the center in the width direction of the case body with respect to the grip portion.

Claim 5, the pre-Symbol work industry machine a tiller, the comprises a tiller to the resistor rod freely mounted detachably resistance bar attachment hole, detachably to the stand unit to the resistance bar attachment hole It is possible to attach.

  A sixth aspect of the present invention is characterized in that a water drainage hole capable of draining water from the case body is provided at a predetermined height position in the rear wall portion or the front wall portion of the case body.

In the invention which concerns on Claim 1, the stand means and the box-shaped case body were provided. A support extension portion of the stand means was provided below the machine body, and a fitting groove portion into which the support extension portion could be fitted was provided in the case body.
The case body is placed on the support extension portion by fitting the fitting groove portion of the case body to the support extension portion.

Therefore, it is possible to place the case body on the support extension part and remove the placed case body from the support extension part without lifting the work implement.
Thereby, unlike the prior art, it is not necessary to lift the working machine and store it in the case body, so that the working part can be easily stored in the case body, and the working part can be easily detached from the case body. .

In the invention which concerns on Claim 2, the fitting groove part was extended from the bottom part of the case body to the rear wall part or the bottom part of the case body to the front wall part along the support extension part.
Then, the case groove is inserted between the working portion and the support extension portion while rotating along the support extension portion, so that the fitting groove portion is fitted to the support extension portion.
Thereby, a working part can be more easily accommodated in a case body, and a working part can be removed from a case body still more easily.

In the invention which concerns on Claim 3, the wheel for a movement was provided in the stand means.
Thereby, it becomes possible to move a working machine easily using a wheel, and the usability can be improved.

Furthermore, the working part was floated with the wheels and the horizontal extension part in contact with the ground.
Thereby, the operation | work which mounts a case body in a support extension part, and the operation | work which removes the mounted case body from a support extension part can be performed much more easily.

In the invention which concerns on Claim 4, the holding | grip part was projected from the front part among the side walls on either side. By gripping the grip portion, the case body can be easily attached to and detached from the support extension portion.
Furthermore, the interference prevention recessed part was each provided in the rear part among right and left side wall parts. By providing the concave portion for preventing interference, it is possible to prevent the operator from interfering with the case body when lifting the work implement.

In the invention which concerns on Claim 5, the cultivator was employ | adopted as a working machine, and the stand means was detachably attached to the resistance rod attachment hole with which the cultivator was equipped.
Thereby, it is not necessary to provide the mounting hole for attaching the stand means to the cultivator, and the number of parts can be reduced and the configuration can be simplified.

In the invention which concerns on Claim 6, the drain hole for drainage was provided in the predetermined height position among the rear wall parts of the case body.
By providing the water drain hole at a predetermined height position, it is possible to prevent water from collecting in the internal space higher than the water drain hole in the internal space of the case body.

Further, since the drain hole is provided at a predetermined height position of the rear wall portion, the drain hole is positioned above the bottom portion of the case body. Therefore, for example, when water drops are dropped from the working unit onto the bottom of the case body, the dropped water can be stored inside the case body.
Thereby, the water droplet dripped from the working part can be prevented from being drained from the inside of the case body to the floor of the vehicle.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, and “right” indicate Fr as the front, Rr as the rear, L as the left, and R as the right according to the direction viewed from the operator.
Here, in this Embodiment, a walk-type tiller is illustrated as a working machine, However, a working machine is not limited to a walking-type tiller.

FIG. 1 is a side view showing a state in which a resistance bar is attached to a working machine according to the present invention, FIG. 2 is a side view showing a state in which stand means is attached to the working machine according to the present invention, and FIG. It is a side view which shows the state which attached the case body to the machine.
The work machine 10 includes an engine 12 mounted on an upper end portion of a work machine main body (machine body) 11, a tilling shaft 13 provided below the engine 12, and a plurality of tilling claws (working unit) provided on the tilling shaft 13. 15, a handle column 18 extending rearward and upward from the support bracket 16 of the work machine body 11, a resistance bar mounting portion 20 provided at the front end portion 18 a of the handle column 18, and a resistance bar mounting portion 20 A resistance rod 22 and a stand means 24 that can be detachably attached to the stand means 24, a case body 26 attached to the stand means 24, a carry handle 28 for transportation provided substantially at the center of the handle column 18, and a handle column 18 This is a walking type tiller provided with an operation handle 29 provided at the upper end.

  The working machine 10 is a walking type tiller that travels while cultivating soil with a plurality of tilling claws 15 by transmitting the power of the engine 12 to the tilling shaft 13 and rotating the tilling shaft 13.

4 is a perspective view showing a state where a resistance bar is attached to the working machine according to the present invention, and FIG. 5 is a view taken in the direction of arrow 5 in FIG.
The resistance rod attaching portion 20 includes an attaching pipe portion 31 provided at the front end portion 18 a of the handle column 18 and an attaching / detaching operation means 32 attached to the attaching pipe portion 31.

The attachment pipe portion 31 is a cylindrical body in which a resistance rod attachment hole 33 is coaxially penetrated.
The attachment pipe portion 31 is provided so as to intersect the handle column 18 while penetrating the front end portion 18a of the handle column 18, and is inclined at an angle θ (see also FIG. 1) with respect to the vertical line 35. It is arrange | positioned at the downward slope toward the vehicle body back by arrange | positioning.
The attachment pipe portion 31 has a pair of locking holes 31 a formed coaxially above the front end portion 18 a of the handle column 18.

  The attachment / detachment operation means 32 includes a bracket 37 welded to the upper end portion 31b of the attachment pipe portion 31 and the front end portion 18a of the handle column 18, a stopper piece 38 provided on the upper and lower ends 37a, 37b of the bracket 37, a bracket 37, a cylindrical collar 41 penetrating through the bent portion 39, an operation rod 42 penetrating through the collar 41 and inserted into the locking holes 31a, 31a of the mounting pipe portion 31, a stopper piece 38, and a folding member. And a compression spring 43 interposed between the curved portions 39.

In the bracket 37, the end 37 a of the upper piece 44 is welded to the upper end 31 b of the attachment pipe portion 31, the end 37 b of the lower side 45 is welded to the front end 18 a of the handle column 18, and the upper piece 44 and the lower side 45 are folded. They are connected by a curved portion 39.
The bracket 37 is formed in a substantially U shape with an upper piece 44, a lower side 45, and a bent portion 39.

The stopper piece 38 is provided in the vicinity of the end portion 37a of the upper piece 44 and in the vicinity of the end portion 37b of the lower side 45, and a through hole 38a is formed in the approximate center.
The collar 41 is penetrated and fixed to the bent portion 39 while being arranged coaxially with the through hole 38a.

  The operating rod 42 includes a collar 41, a through hole 38 a of the stopper piece 38, locking holes 31 a and 31 a of the mounting pipe portion 31, and a linear rod main body 42 a that passes through the mounting hole 22 a of the resistance rod 22, and the rod main body 42 a. And a handle 42c provided at the base end of the rod main body 42a projecting outward from the collar 41.

  The compression spring 43 is disposed between the bent portion 39 of the bracket 37 and the flange 42 b of the operation rod 42 and is fitted to the operation rod 42 and the collar 41.

According to the attaching / detaching operation means 32, the rod 42 a is pressed against the stopper piece 38 by pressing the flange 42 b with the spring force of the compression spring 43, so that the rod body 42 a is engaged with the locking holes 31 a, 31 a of the attachment pipe portion 31. The resistor rod 22 can be held in the state of being inserted into the mounting hole 22a.
Thereby, the resistance rod 22 can be attached to the resistance rod attachment hole 33 of the attachment pipe portion 31.
By attaching the resistance rod 22 to the resistance rod attachment hole 33, when the soil is cultivated by the working machine (walking type tiller) 10, the posture at the time of tillage can be held by the resistance rod.

On the other hand, by pulling the handle portion 42c to the right as shown by the arrow, the flange 42b moves in the direction of the arrow, and the compression spring 43 is compressed by the flange 42b. By compressing the compression spring 43, the rod main body 42 a can be extracted from the locking holes 31 a and 31 a of the mounting pipe portion 31 and the mounting hole 22 a of the resistance rod 22.
Thereby, it is possible to easily attach or remove the resistance rod 22 from the resistance rod attachment hole 33 of the attachment pipe portion 31 without taking time and effort.

6 is a perspective view showing a state in which the stand means and the case body are attached to the work machine according to the present invention, and FIG. 7 is a perspective view showing a state in which the stand means and the case body are removed from the work machine according to the present invention.
The stand means 24 includes a pole portion 51 that can be detachably attached to the resistance rod attachment hole 33 of the attachment pipe portion 31, an attachment bracket 52 provided at the lower end portion 51 a of the pole portion 51, and an upper end portion 52 a of the attachment bracket 52. A resistance member holding part 54 attached to the stand member 53, and a wheel 55 provided at the lower end part 52 b of the attachment bracket 52.

The pole portion 51 is a rod member that can be inserted into the resistance rod attachment hole 33 from below, and an attachment hole 51c is provided in the upper end portion 51b.
The mounting hole 51c is formed so that the rod main body 42a of the operation rod 42 can pass therethrough.
The stand means 24 can be attached to the attachment pipe portion 31 by attaching the pole portion 51 to the resistance rod attachment hole 33.

Thus, as shown in FIG. 1, by using the working machine 10 as a cultivator, the stand means 24 can be detachably attached using the resistance bar attaching hole 33 provided in the cultivator.
Thereby, in order to attach the stand means 24, it is not necessary to provide a dedicated mounting bracket (mounting hole) in the work machine (cultivator) 10, and simplification can be achieved by reducing the number of parts.

The mounting bracket 52 includes a top portion 57 provided at the lower end portion 51 a of the pole portion 51, and left and right leg portions 58 bent downward from the left and right ends of the top portion 57.
Receiving recesses 59 and 59 are formed at upper ends of the left and right leg portions 58, and a stand member 53 is provided in the receiving recesses 59 and 59.
A wheel 55 is disposed between the left and right legs 58, and the wheel 55 is rotatably attached to the lower ends of the left and right legs 58 via a support shaft.

FIG. 8 is a perspective view showing a stand means according to the present invention.
The stand member 53 is a member formed by bending a rod.
The stand member 53 includes a horizontal rod portion 62 that extends substantially horizontally in the width direction, a left support extension portion (support extension portion) 63 that extends forward from the left end portion of the horizontal rod portion 62, and a horizontal rod. A right support extension part (support extension part) 64 extending downwardly from the right end of the part 62 toward the front.
The stand member 53 is formed in a substantially U shape in plan view.

The left support extension 63 extends horizontally from the left end of the horizontal rod 62 to the left inclined extension 66 that extends downward toward the front, and from the lower end of the left inclined extension 66 toward the front. And a left horizontal extending portion (horizontal extending portion) 67.
The right support extension 64 extends horizontally from the right end of the horizontal rod 62 to the front and extends downward from the right end of the horizontal rod 62 and from the lower end of the right inclination extension 68 to the front. And a right horizontal extending portion (horizontal extending portion) 69.

The left and right horizontal extending portions 67 and 69 extend below (to wrap around) the tilling claws 15 provided below the work machine main body 11 shown in FIG.
The horizontally extending left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1 (see FIG. 2).
Therefore, as shown in FIG. 2, the tilling claw 15 can be held in a floating state with the left and right horizontal extending portions 67 and 69 being grounded.

The resistance rod holding portion 54 is a pipe (cylindrical member) that holds the resistance rod 22, and is provided on the left inclined extending portion 66 of the stand member 53, and the lower end portion 54a is crushed in a concave shape.
By crushing the lower end portion 54 a into a concave shape, the upper end portion 22 b of the resistance rod 22 is held in a state of being inserted into the resistance rod holding portion 54.
As a result, the resistance rod 22 can be held by the resistance rod holding portion 54.

According to the stand means 24, by attaching the pole portion 51 to the resistance rod mounting hole 33 with the resistance rod 22 removed from the resistance rod mounting hole 33, the left and right horizontal extending portions 67, 69 and the wheel 55 can be grounded.
The work implement 10 can be kept in a self-supporting state in a transporting posture or a storage posture by the stand means 24 alone.

Here, as described above, the left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1 (see FIG. 2).
Therefore, as shown in FIG. 2, in a state where the left and right horizontal extending portions 67 and 69 are grounded, the work implement 10 is kept in a state of being transported or stored in a state where the tilling claws 15 are floated. Can do.
As a result, it is possible to perform the replacement work of the tilling claws 15 and the repair / cleaning work of the tilling claws 15 without much effort, and the workability can be improved.

Further, according to the stand means 24, the stand means 24 is provided with a moving wheel 55.
As a result, the work implement 10 can be easily moved using the wheels 55, and the usability can be improved.

Furthermore, it is possible to keep the work machine 10 in a transporting posture or a storage posture by using the moving wheels 55.
Thus, the stand means 24 can be simplified by using the moving wheel 55 as a member for holding the work implement 10 in a self-supporting state.

Returning to FIGS. 6 and 7, the case body 26 is attached to the stand member 53 (specifically, the left and right support extending portions 63 and 64) of the stand means 24 and accommodates the tilling claws 15 shown in FIG. 1. This is possible.
By storing the tilling claws 15 in the case body 26, the earth and sand that has fallen from the tilling claws 15 can be stored in the case body 26.
Thereby, when transporting the work implement 10 by a vehicle, it is possible to prevent the floor portion of the vehicle from being soiled with earth and sand that has fallen from the tilling claws 15.

The case body 26 includes a bottom portion 71 formed in a substantially rectangular shape, a front wall portion 72 raised upward from the front side of the bottom portion 71, and a rear wall portion raised upward from the rear side of the bottom portion 71. 73, a left side wall 74 raised upward from the left side of the bottom 71, and a right side wall 75 raised upward from the right side of the bottom 71.
The case body 26 is formed in a box shape with a bottom 71, a front wall 72, a rear wall 73, a left wall 74 and a right wall 75.

The bottom 71 is a horizontal part formed in a substantially rectangular shape.
The front wall portion 72 is a wall portion that is inclined with an upward slope from the front side of the bottom portion 71 toward the front.
The rear wall 73 is a wall that is inclined with an upward slope from the rear side of the bottom 71 toward the rear.

The left side wall portion 74 is a side wall that rises substantially vertically from the left side of the bottom portion 71.
The upper side 77 of the left side wall 74 has an upper front side 77a formed in an upward slope toward the rear, an upper central side 77b formed substantially horizontally from the upper end of the upper front side 77a to the rear, and an upper central side. 77b and an upper rear side 77c formed in a downward gradient from the rear end toward the rear.
That is, the upper side 77 is formed in a substantially Mt. Fuji shape by making the upper central side 77b substantially horizontal and the upper front side 77a and the upper rear side 77c inclined.

The left side wall 74 includes a gripping part 78 projecting outward from an upper front side (front part of the left side wall part) 77a, an upper central side 77b, and an upper rear side (rear part of the left side wall part) 77c. And a flange portion 79 projecting outward.
The gripping portion 78 is projected to a relatively large extent with a projecting width W1 so that an operator can grip the gripping portion 78.

FIG. 9 is a plan view showing a state in which the case body is attached to the working machine according to the present invention.
The flange portion 79 protrudes with an overhang width W2 that is smaller in width than the overhang width W1 of the grip portion 78.
Therefore, an interference prevention recess 81 that is recessed toward the center in the width direction of the case body 26 with respect to the grip 78 is formed in the upper center side 77b and the upper rear side 77c.

The right side wall 75 is a side wall that rises substantially vertically from the right side of the bottom 71.
Since the right side wall part 75 is a side wall part symmetrical to the left side wall part 74, the same reference numerals as those of the left side wall part 74 are assigned to the constituent parts of the right side wall part 75, and description thereof is omitted.

By providing the left and right grips 78 on the upper front sides 77a of the left and right side walls 74, 75, the operator can grip the left and right grips 78 and easily lift the case body 26.
Further, by providing left and right concave portions 81 for preventing interference in the upper central side 77b and the upper rear side 77c of the left and right side wall portions 74 and 75, the operator interferes with the case body 26 when lifting the work implement 10. Can be prevented.

FIG. 10 is a perspective view showing a case body according to the present invention, and FIG. 11 is a rear view showing the working machine according to the present invention.
The case body 26 can be fitted with the left and right support extension portions 63 and 64 from the outside of the case body 26 at portions corresponding to the left and right support extension portions 63 and 64 in the bottom portion 71 and the rear wall portion 73. Left and right fitting groove portions (fitting groove portions) 83 and 84 are provided.

The left fitting groove 83 is omitted in side view so as to extend along the left wall 74 (that is, the left support extension 63) from the vicinity of the left side of the bottom 71 to the vicinity of the left side of the rear wall 73. It is formed in a square shape.
In the left fitting groove 83, a left support extension 63 is formed in a concave shape so as to be fitted from the outside of the case body 26.

The right fitting groove 84 is omitted from the side view so as to extend along the right side wall 75 (that is, the right support extension 64) from the vicinity of the right side of the bottom 71 to the vicinity of the right side of the rear wall 73. It is formed in a square shape.
A right support extension 64 is formed in the right fitting groove 84 in a concave shape so as to be fitted from the outside of the case body 26.

  The left fitting groove 83 is fitted to the left support extension 63, and the right fitting groove 84 is fitted to the right support extension 64, so that the case body 26 has left and right support extensions 63. , 64 from above.

Therefore, it is possible to place the case body 26 on the left and right support extension parts 63 and 64 without removing the work implement 10 and to remove the placed case body 26 from the left and right support extension parts 63 and 64. it can.
Thereby, since it is not necessary to lift the working machine 10 and store it in the case body 26, the tilling claw 15 can be easily stored in the case body 26, and the tilling claw 15 can be easily detached from the case body 26. .

Further, the stand means 24 can keep the work implement 10 in a transporting posture or a storage posture in a state where the tilling claws 15 are floated in a state where the left and right horizontal extending portions 67 and 69 are grounded. .
Accordingly, the case fitting 26 is inserted along the tillage claw 15 and the left and right support extension parts 63 and 64 while rotating the case body 26 along the left and right support extension parts 63 and 64, so that the left fitting groove 83 is extended to the left support extension. The right fitting groove 84 is fitted to the right support extending portion 64 while being fitted to the protruding portion 63.
Thereby, the tilling claw 15 can be stored in the case body 26 more easily, and the tilling claw 15 can be removed from the case body 26 more easily.

  In addition, as described above, the left and right grips 78 are provided on the upper front sides 77a of the left and right side walls 74, 75. As a result, the operator can grip the left and right grips 78, and the case body 26 can be more easily attached to and detached from the stand member 53 (left and right support extension portions 63 and 64 (see FIG. 7)).

The rear wall 73 is provided with a pair of drain holes 86 at a position at a predetermined height position H2 from the bottom 71.
The pair of drainage holes 86 are horizontally disposed with a certain interval between the left and right reinforcing ribs 87 and are capable of draining the water in the internal space 88 of the case body 26.
Accordingly, by providing the pair of drain holes 86 at the predetermined height position H <b> 2, it is possible to prevent water from being accumulated in a space higher than the pair of drain holes 86 in the internal space 88 of the case body 26.

Further, since the pair of drain holes 86 are provided at the predetermined height position H <b> 2 of the rear wall 73, the pair of drain holes 86 are positioned above the bottom 71 of the case body 26.
Therefore, for example, when water drops are dropped from the work machine 10 onto the bottom 71 of the case body 26, the dropped water can be stored in the bottom 71 of the case body 26.
Thereby, it is possible to prevent water drops dripped from the tilling claws 15 from being drained from the internal space 88 of the case body 26 to the floor of the vehicle.

By the way, the case body 26 can arrange | position a pair of drain hole 86 easily in the lowest position by tilting the working machine 10 (refer FIG. 1) back on the wheel 55 of the stand means 24 as an axis | shaft.
Therefore, when water accumulates in a space lower than the pair of drain holes 86 in the internal space 88 of the case body 26, the work machine 10 is tilted rearward so that the pair of drain holes 86 are disposed at the lowest position. 26 water can be easily drained.

Returning to FIG. 9, the carry handle 28 is provided substantially at the center of the handle column 18 as shown in FIG. 1, and the left and right grip portions 46 and 47 and the center grip portion that are gripped (gripped) to carry the work machine 10. 48 is provided.
In order to carry the work machine 10, for example, each worker stands on the left and right sides of the work machine 10 (left and right sides of the case body 26), and each worker holds the left grip part 46 and the right grip part 47, respectively. The work units 10 are carried by lifting the grips 46 and 47.
Alternatively, one worker stands on one of the left and right sides of the work machine 10 (left and right sides of the case body 26), holds the center grip part 48, lifts the center grip part 48, and carries the work machine 10.

For this reason, when carrying the work machine 10, the worker stands on the left and right sides or one side of the case body 26. For this reason, if the flange is greatly extended from the upper central side 77b and the upper rear side 77c of the left and right side wall portions 74, 75, it is conceivable that the operator interferes with the flange.
Therefore, as described above, the left and right concave portions 81 for preventing interference are provided on the upper central side 77b and the upper rear side 77c of the left and right side wall portions 74, 75.
Accordingly, it is possible to prevent the operator from interfering with the case body 26 when lifting the work implement 10.

Here, as described above, the drain hole 86 of the case body 26 is provided in the rear wall 73.
On the other hand, when carrying the work machine 10, the worker is positioned on the left and right sides of the case body 26.
Thereby, when carrying out the work machine 10, the water drained from the drain hole 86 can be prevented from being applied to the worker.

Next, the procedure for removing the resistance rod 22 from the work machine 10 and attaching the stand means 24 will be described with reference to FIGS.
FIGS. 12A and 12B are views for explaining the procedure for removing the resistance bar from the working machine according to the present invention.
In (a), the guard member 27 is grounded by tilting the work implement 10 forward as shown by the arrow A with the tilling shaft 13 as an axis. When the guard member 27 and the tilling claw 15 are grounded, the work machine 10 is held in a forward tilted state.
When the work implement 10 is tilted forward, the lower end portion 31c of the attachment pipe portion 31 is disposed facing rearward, and the resistance rod 22 is maintained in a state of floating sideways.

  In FIG. 5 (b), by operating the operating rod 42 (specifically, the handle portion 42c) of the attaching / detaching operating means 32 shown in FIG. 5, resistance is applied from the resistance rod mounting hole 33 (see FIG. 5) of the mounting pipe portion 31. Remove the rod 22 as shown by arrow B.

FIGS. 13A and 13B are views for explaining the procedure for attaching the stand means to the working machine according to the present invention.
In (a), the pole portion 51 of the stand means 24 is inserted as shown by an arrow C into the resistance rod mounting hole 33 (see FIG. 5) of the mounting pipe portion 31. With the pole portion 51 inserted, the operation rod 42 (the handle portion 42 c) shown in FIG. 5 is operated to attach the pole portion 51 to the attachment pipe portion 31.

In (b), the left and right horizontal extending portions 67 and 69 and the wheels 55 provided on the stand means 24 are grounded by returning the work machine 10 to the position where it is self-supporting in the carrying posture and the storage posture as shown by the arrow D. By grounding the left and right horizontal extending portions 67 and 69 and the wheels 55, the work unit 10 is maintained in a self-supporting state by the stand means 24 in the transport posture or the storage posture.
The resistance rod 22 removed from the attachment pipe portion 31 is attached to the resistance rod holding portion 54 as indicated by an arrow E.

FIG. 14 is a view showing a state in which the working machine according to the present invention is self-supported by the stand means.
The left and right horizontal extending portions 67 and 69 are disposed below the lower end 15a of the tilling claw 15 by a distance H1. Therefore, the tilling claw 15 can be kept in a floating state by grounding the left and right horizontal extending portions 67 and 69 and the wheels 55.

Next, a procedure for attaching the case body 26 to the stand means 24 will be described with reference to FIG.
FIGS. 15A and 15B are views for explaining the procedure for attaching the case body to the working machine according to the present invention.
In (a), the left and right grips 78 (see also FIG. 6) of the case body 26 are gripped, the case body 26 is tilted rearward as indicated by the arrow F, and the rear wall 73 is disposed horizontally. In this state, the case body 26 is moved as shown by an arrow G, and the rear wall portion 73 is inserted between the left and right horizontal extending portions 67 and 69 and the tilling claws 15.
By grasping the left and right grips 78 of the case body 26, the operation of inserting the case body 26 can be easily performed without trouble.
By inserting the case body 26, the left fitting groove portion 83 is fitted to the left horizontal extending portion 67 and the right fitting groove portion 84 is fitted to the right horizontal extending portion 69.

The rear wall portion 73 of the case body 26 is inserted between the left and right inclined extending portions 66 and 68 and the tilling claw 15.
The left fitting groove 83 is fitted to the left inclined extending portion 66 and the right fitting groove 84 is fitted to the right inclined extending portion 68.

In (b), the rear wall portion 73 (see FIG. 15A) of the case body 26 is moved along the left and right horizontal extending portions 67 and 69, and then the left and right inclined extending portions 66 and 68 are moved. By moving along, the case body 26 rotates as indicated by the arrow I.
When the case body 26 rotates as indicated by the arrow I, the left fitting groove 83 is fitted into the left supporting extension 63 and the right fitting groove 84 is fitted into the right supporting extension 64.

By rotating the case body 26 as shown by the arrow I, the bottom portion 71 of the case body 26 is disposed horizontally and is grounded.
In this state, the case body 26 is attached in a state of being placed on the stand member 53 (specifically, the left and right support extending portions 63 and 64).

The working machine according to the present invention is not limited to the above-described embodiment, and can be changed or improved as appropriate.
For example, in the above-described embodiment, the walking type tiller is illustrated as the working machine. However, the working machine is not limited to this, and can be applied to other working machines such as a lawn mower.

  Moreover, although the said embodiment demonstrated the example which floats the tilling nail | claw 15 when the working machine 10 was hold | maintained in the self-supporting state by the stand means 24, it is not restricted to this, It is comprised so that the tilling nail | claw 15 may not be lifted. It is also possible.

Furthermore, in the said embodiment, although the example provided with the left and right support extension parts 63 and 64 in the stand member 53 was demonstrated, the number of support extension parts is not limited to two.
For example, the stand member 53 may be provided with a single support extension, and the single support extension may be formed in a substantially T shape.

  Moreover, although the said embodiment demonstrated the example which extended the right and left fitting groove parts 83 and 84 from the bottom part 71 of the case body 26 to the rear wall part 73, it is not restricted to this, The right and left fitting groove parts 83, It is also possible to extend 84 from the bottom 71 of the case body 26 to the front wall 72.

  Further, in the above-described embodiment, the example in which the drainage hole 86 is provided in the rear wall portion 73 of the case body 26 has been described. However, the present invention is not limited thereto, and the front wall portion 72 of the case body 26 may have a drainage hole. Is possible.

  In addition, the work machine main body 11, the tilling claw 15, the resistance rod 22, the stand means 24, the case body 26, the attachment pipe portion 31, the resistance rod attachment hole 33, the wheels 55, the left and right support extending portions shown in the above embodiment. 63, 64, left and right horizontal extensions 67, 69, bottom 71, front wall 72, rear wall 73, left and right side walls 74, 75, left and right grips 78, left and right recesses 81, left and right fittings The groove portions 83 and 84 and the drainage hole 86 are not limited to the illustrated shapes, and can be appropriately changed.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to a working machine that includes a working unit such as a tilling claw below the machine body and is detachably provided with a case body that covers the working unit.

It is a side view which shows the state which attached the resistance rod to the working machine which concerns on this invention. It is a side view which shows the state which attached the stand means to the working machine which concerns on this invention. It is a side view which shows the state which attached the case body to the working machine which concerns on this invention. It is a perspective view which shows the state which attached the resistance rod to the working machine which concerns on this invention. FIG. 5 is a view taken in the direction of arrow 5 in FIG. 4. It is a perspective view which shows the state which attached the stand means and the case body to the working machine which concerns on this invention. It is a perspective view which shows the state which removed the stand means and the case body from the working machine which concerns on this invention. It is a perspective view which shows the stand means based on this invention. It is a top view which shows the state which attached the case body to the working machine which concerns on this invention. It is a perspective view which shows the case body which concerns on this invention. It is a rear view which shows the working machine which concerns on this invention. It is a figure explaining the procedure which removes a resistance rod from the working machine which concerns on this invention. It is a figure explaining the procedure which attaches a stand means to the working machine which concerns on this invention. It is a figure which shows the state which made the working machine which concerns on this invention self-supported by the stand means. It is a figure explaining the procedure which attaches a case body to the working machine which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Working machine, 11 ... Working machine main body (machine body), 15 ... Tillage claw (working part), 22 ... Resistance rod, 24 ... Stand means, 26 ... Case body, 31 ... Mounting pipe part, 33 ... Resistance rod mounting hole , 55 ... wheels, 63, 64 ... left and right support extension parts (support extension part), 67, 69 ... left and right horizontal extension parts (horizontal extension part), 71 ... bottom part, 72 ... front wall part, 73 ... rear wall part, 74, 75 ... left and right side wall parts, 77a ... upper front side (front part of left side wall part), 77c ... upper rear side (rear part of left side wall part), 78 ... left and right gripping part ( Gripping part), 81 ... left and right concave parts (concave part), 83, 84 ... left and right fitting groove parts (fitting groove part), 86 ... drainage holes.

Claims (6)

In a working machine with a working part below the machine body,
A support means is provided below the machine body, and a stand means capable of independently supporting the work machine in a transporting posture or a storage posture by grounding a horizontal extending portion of the supporting extension portion,
A box-like case body attached to the stand means and capable of storing the working part;
With
A fitting groove portion capable of fitting the support extension portion from the outside of the case body is provided in a portion corresponding to the support extension portion of the case body,
The work machine, wherein the case body is placed on the support extension portion by fitting the fitting groove portion to the support extension portion. The fitting groove is extended along the support extension from the bottom of the case body to the rear wall, or from the bottom of the case body to the front wall.
The fitting groove is fitted into the support extension by inserting the case body between the working part and the support extension while rotating the case body along the support extension. The work machine according to claim 1. The stand means comprises a moving wheel,
The working machine according to claim 1 or 2, wherein the working unit is floated in a state where the wheels and the horizontal extending portion are grounded. The case body is
A gripping part that protrudes to the front part of the left and right side wall parts so that it can be gripped when the case body is attached to and detached from the support extension part, and
In the rear part of the left and right side wall parts, a concave part for preventing interference, which is recessed toward the center in the width direction of the case body with respect to the grip part,
The working machine according to claim 1, wherein the working machine is provided. Before Symbol work industry machine is a tiller,
A resistance rod mounting hole capable of detachably attaching a resistance rod to the cultivator is provided,
The work machine according to any one of claims 1 to 4 , wherein the stand means can be detachably attached to the resistance rod attachment hole.   The drain hole which can drain the water of the said case body in the predetermined height position among the rear wall part or the front wall part of the said case body is provided, The any one of Claims 1-5 characterized by the above-mentioned. Work machine.

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