JPH083202Y2 - Stand body structure of the compression roller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a stand body structure of a compression roller.

<Prior Art> Conventionally, as a riding working machine such as a rice transplanter, a working machine such as a planting working machine is configured to be detachable.

In these riding work machines, various work devices for performing different works can be attached instead of the work machine, and for example, a pressure suppressing roller can be attached for arranging a barley or a coat.

<Problems to be solved by the invention> However, since the compression roller is grounded only at the roller portion which is rotatably supported at the time of work, when the roller is disengaged from the riding work machine main body, the roller is rotated. Since the mounting portion to the supporting body is grounded, it is inconvenient to handle, and the mounting portion is easily rusted. For this reason, it is necessary to attach a stand that maintains the posture in the standing state, but when compressing or leveling work, there is a drawback that it scratches the soil or scratches the ground, which is an obstacle to the work. .

Further, if the structure is such that the stand is detached or folded at the time of working, the work of attaching and detaching the stand is required in addition to the work of attaching and detaching the pressure reducing roller, and there is a drawback that the working efficiency is deteriorated.

The present invention improves the structure of the stand body,
The object is to solve the above problems.

<Means for Solving the Problems> The present invention for solving the above problems is mounted on the mobile work machine main unit 1 so as to be able to move up and down through the attachment / detachment mechanism 8 and is provided with a weight 46 for a compression load. In a pressure suppressing roller device 26 including a pressure suppressing roller 29, a stand body 30 that supports the pressure suppressing roller device 26 in a detached state from the machine 1 is positioned closer to the attaching / detaching mechanism 8 side than the pressure suppressing roller 29, and is a pressure suppressing roller device. 26, the grounding portion 62 of the stand body 30 is located higher than the grounding portion of the compression roller 29 in the state where the stand body 30 is mounted,
It is characterized in that the position of the center of gravity G of the weight 46 is located closer to the grounding portion 62 side of the stand body 30 than the grounding portion of the pressure suppressing roller 29 in the state where this machine is mounted.

<Operation> The attachment / detachment mechanism 8 provided in the main unit 1 is, for example, the ring mechanism 7
And so on up and down. The compression roller device 26 is detachably attached to the attachment / detachment mechanism 8. At the time of work, it is attached to the main body 1 via the attachment / detachment mechanism 8 and is pulled by the main body 1 to perform pressure suppression work. When the compression roller device 26 is detached, the compression roller device 26 is supported by the compression roller 29 and the stand body 30. Since the grounding portion 62 of the stand body 30 is located above the grounding portion of the compression roller 29 in the machine 1 device state, it does not interfere with the work during the compression work, and in the detached state, the compression roller device 26 attaches and detaches the compression roller device 26. It will be supported by leaning forward toward.

<Embodiment> An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 2 shows an embodiment of the present invention, and is a side view of a riding rice transplanter equipped with a compression roller device. The machine 1 is supported by front wheels 2 and rear wheels 3, and is driven by driving the rear wheels 3. A driver's seat 4 is placed on the front upper side of the rear wheel 3, and a link mechanism 7 including a lower link 5 and an upper link 6 which are parallel to each other is attached to the rear part of the driver's seat 4 so as to be vertically swingable. The attachment / detachment mechanism 8 is provided at the rear end of the link mechanism 7.
Is attached to the attachment / detachment mechanism 8 and a pressure reducing roller device 26 having an attachment / detachment portion 27 detachably attached to the attachment / detachment mechanism 8 is attached.

The attachment / detachment mechanism 8 will be briefly described below with reference to FIGS. 3 and 4. A link holder 9 composed of two plates is mounted between the rear ends of the lower link 5 and the upper link 6 in the vertical direction. The upper part of the link holder 9 is connected by the connection fulcrum of the upper link 6,
The lower end is connected to the lower link 5 via a link member 10. The link member 10 extends from the connecting portion with the lower link 5 toward the main unit 1 and is connected to the link holder 9. A rod-shaped contact member 11 is inserted into the lower end portion of the link holder 9 in the left-right direction, and the link members 10 are connected to both ends, so that the contact member 11 connects the link holder 9 and the link member 10. An upper locking portion 12 is provided at the upper end of the link holder 9 by a groove formed in the left-right direction. Above the contact member 11, hooks 12 are arranged along the left and right side surfaces of the link holder 9. The hook 13 is a U-shaped plate-shaped member having an open bottom. The end of the hook 13 on the main unit side is the link holder 9
It is fixed to both ends of a support shaft 14 which is inserted to the left and right. The support shaft 14 is rotatably supported with respect to the link holder 9,
The pair of left and right hooks 13 rotate in the same direction with respect to the link holder 9. Springs 15 are stretched between the link holders 9 on the left and right hooks 13 and are normally urged downward. Further, a concave portion 16 is formed on the work machine mounting side of the hook 13 mounting portion, and the hook 13 and the concave portion 16 form an accommodating portion for accommodating an upper engaging pin 36 described later.

An operating rod 17 is rotatably connected to a spring 15 mounting portion of the right hook 13. The operation rod 17 is inserted through a holding member 18 fixed to the right side surface of the upper link 6, extends along the upper link 6 in the direction of the machine 1, and has a lever portion 19 bent outwardly at its tip. Have A stopper 21 made of a nut is provided at a portion of the operating rod 17 penetrating the holding member 18, and a hole 20 is formed in the holding member 18. The hook 13 is rotated by moving the operation rod 17 in the front-rear direction, and the work machine is attached / detached to / from the attachment / detachment mechanism 8. The biasing spring 22 is a biasing spring that biases the operating rod 17 in the locking direction.

Next, the compression roller device 26 attached to the attachment / detachment mechanism 8
The structure of will be described. As shown in FIG. 1, the compression roller device 26 is an attachment / detachment portion detachably connected to the attachment / detachment mechanism 8.
27, a weight mounting portion 28 provided on the rear portion thereof, a compression roller 29 mounted on the lower side of the weight mounting portion 28, and a stand body 30.

First, referring to FIGS. 1 and 5, the attaching / detaching portion 27 will be described. The step portion 32 is formed on the main unit 1 side of the box-shaped hitch bracket 31, and the abutting member 11 described above is abutted. A contact receiving surface for forming is formed. A lower engaging pin 33 is inserted in the left-right direction on the upper portion of the hitch bracket 31, and hitch members 35 forming a hitch 34 are fixed to both ends at both ends. The upper end of each hitch member 35 has a step portion that is bent inward, and the upper engaging pin 26 is inserted into the tip end of the hitch member 35 to form the hitch 34 as a whole.

As shown in FIG. 6, a bracket 41 bent in a U shape is fixed to the rear side of the hitch 34 by welding or the like. A support frame 42 is inserted and fixed to the bracket 41 in the left-right direction. The support frame 42 is also a U-shaped frame, and a weight attachment member 45 is provided on the rear open end thereof. Support frame 42
The inside of the mounting portion of the bracket 41 is formed thicker than the other portions, and a mounting portion 43 for mounting the roller mounting tool 47 is provided. The mounting portion 43 is provided with two holes 44 on the left and right. The roller attachment 47 is attached and fixed to the attachment portion 43 by a pin which is inserted through the hole 44. Roller mount 47
The fitting portion 48 of is formed in a U-shaped cross section along the mounting portion 43. Support brackets 49 extending rearward in parallel with each other are erected on both ends of the fitting portion 48, and a roller mounting bracket 50 is fixed to the lower side of the support bracket 49. The roller mounting bracket 50 is a member formed in a channel shape in the left-right direction, opens downward, and has a regulating member at the left and right ends.
51 is stuck. A hole is formed in the center of the front and rear wall surfaces.

Inside the roller mounting bracket 50, a roller mounting frame 52 that supports the compression roller 29 is supported. At the center of the roller mounting frame 52, a triangular mounting plate 56 is mounted so as to sandwich the roller mounting frame 52 from the front and rear sides. A hole is bored in the center of the mounting plate 56, the mounting plate 56 is inserted into the roller mounting bracket 50, and the roller mounting frame 52 is inserted into the roller mounting bracket 50 and the mounting plate 56 by the same pin. It is fixed to the mounting bracket 50. On the other hand, the oblique side of the mounting plate 56 contacts the regulation member 51, and the swing of the roller mounting frame 52 is regulated. With this mounting structure, the roller mounting frame 52
Can be fixed without rocking.

Arms 53 are fixed to both ends of the roller attachment frame 52, and roller support frames 54 are attached to the left and right arms 53 extending downward. Support arms 55 are further fixed to both ends of the roller support frame 54, and a compression roller 29 is rotatably supported at the tip of the support arm 55.

As shown in FIG. 1, a plurality of weights 46 are detachably fixed to the weight mounting member 45. The front portion of the weight 46 is provided with a groove into which the weight mounting member 45 fits. In the mounted state, the weight mounting member 45 fits into the groove,
The weight 46 is fastened by the bolt inserted through the weight 46. Since any number of weights 46 can be attached to the weight attaching member 45, the repression force of the repression roller 29 can be adjusted by the number of weights 46.

On the other hand, the mounting bracket is on the rear side of the hitch bracket 31.
A bar-shaped stand body 61 is inserted through the protrusion 60, and is fixed by a pin that inserts the mounting bracket 60 and the stand body 61 in the same manner. The stand body 61 is provided with two holes 63 at the top and the bottom through which the fixing pins are inserted.
The mounting position of the stand body 30 can be changed.

A ground portion 62 made of a pipe material is fixed to the lower end of the stand body 61 in the left-right direction.

In the structure described above, when the compression roller device 26 is erected in a state of being separated from the machine 1 as shown in FIG. 1, the compression roller 29 and the ground portion 62 of the stand body 30 are grounded to support the whole. In this state, the attaching / detaching portion 27 is inclined forward. Therefore, when attaching to the attachment / detachment mechanism 8 on the main body 1 side, the attachment is performed by lowering the link mechanism 7 to the lowermost position and scooping up the attachment / detachment portion 27 of the compression roller device 26 from below. Since the attachment / detachment portion 27 is inclined forward as described above, the upper engagement pin 36 that engages with the attachment / detachment mechanism 8 first projects forward, and the engagement operation by scooping is facilitated.

Also when detaching, if the link mechanism 7 is lowered, the lower engaging pin 33 and the step portion 32 are easily retracted by the forward inclination of the attaching / detaching portion 27, and the upper engaging portion 12 and the upper engaging pin 36 are detached. This facilitates the work of removing the compression roller device 26 smoothly.

Further, when the compression roller device 26 is mounted, the stand body 30 rises and the grounding portion 62 separates from the ground, so that there is no obstacle to the compression work and there is no drawback such as damage to the ground.

On the other hand, the center of gravity G of the weight 46 is located ahead of the ground contact position of the compression roller 29 by the distance l, and the ground contact portion 62 of the stand body 30 is
Since it is located between and, the standing state can be stably maintained even when the apparatus 1 is separated from the apparatus 1. Moreover, as shown in FIG.
Even in the mounting operation state, since the center of gravity G is located at a distance 1'in front of the grounding position of the compression roller 29, if the link mechanism 7 is lowered, the compression roller device 26 easily tilts forward. The position of the center of gravity of the compression roller device 26 is the compression roller.
A similar effect can be obtained between 29 and the ground 62, but the heaviest weights 46 vary in number and weights.
Since the position of the center of gravity greatly changes depending on the number of 46, it is safest to always place the center of gravity G of the weight 46 at the above position.

<Effect of the Invention> According to the structure of the present invention configured as described above, since the grounding portion of the stand body is located higher than the grounding portion of the compression roller in the mounted state, the attachment / detachment portion of the compression roller device is in the detached state. Since it is tilted forward, it has the effect of making it easier to scoop up from the lower side and attach it to this machine.

Furthermore, since the grounding part of the stand body floats upward in the mounted state, there is no need to fold or remove the stand body during the compression work, and the work can be done with the stand body attached. There is an effect that workability for suppressing the pressure is good and efficiency is improved.

Further, since the center of gravity of the weight is located eccentrically to the ground contact portion of the stand from the ground contact portion of the compression roller, the compression roller device always acts to ensure that the stand body is grounded when and after being removed from the machine side. , A safe standing state can be maintained.

[Brief description of drawings]

FIG. 1 is an overall side view of the compression roller device in a detached state, FIG. 2 is an overall side view when the compression roller device is mounted on the machine, FIG. 3 is a side view of the attaching / detaching mechanism, and FIG. 4 is an attaching / detaching mechanism. FIG. 5 is a front view of the attachment / detachment mechanism connected to the attachment / detachment unit showing a state in which the compression roller device is attached, FIG. 5 is an overall front view of the compression roller device, and FIG. 6 is a plan view showing the attachment / detachment unit and the support frame of the compression roller device. Is. 1: This machine, 8: Detaching mechanism 26: Packing roller device, 29: Packing roller 30: Stand body, 62: Grounding part

Claims (1)

[Scope of utility model registration request] 1. A repressing roller which is attached to a main body (1) of a mobile work machine so as to be able to move up and down through a detaching mechanism (8) and which has a repressing load weight (46) and a repressing roller (29). In the device (26), the stand body (30) that supports the compression roller device (26) in a detached state from the machine (1) is positioned closer to the attachment / detachment mechanism (8) side than the compression roller (29) to suppress the pressure. It is provided in the roller device (26), and the grounding portion (62) of the stand body (30) is located higher than the grounding portion of the pressure suppression roller (29) in a state where the unit is mounted, and the center of gravity (G) of the weight (46) is set. ) The stand body structure of the compression roller, which is positioned closer to the grounding portion (62) side of the stand body (30) than the grounding portion of the compression roller (29) when the unit is mounted.