JPH10327638A - Apparatus for sending out granule - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate inconvenience of starting a planting operation in adjusted state of gear meshing as it is even if an operator forgets a returning operation after the regulation of the amount of a fertilizer sent out. SOLUTION: A fertilizing apparatus is equipped with a mechanism for regulating the amount of a fertilizer sent out, being made into an action state of regulation of the amount of the fertilizer sent out for gear meshing by pushing of an operation rod 72 and being made into a non-action state for releasing of gear meshing by drawing out the operation rod 72 and with a handle 75 at the end of the operation rod 72. In the case, a spring 74 for returning and forcing the operation rod 72 in the drawing out diameter and a change lever 76 to be freely worked into an action position for sliding and moving the operation rod 72 in the pushing direction against the force of the spring 74 and into an escaping position for neither sliding nor moving the operation rod are installed. In a free state, the change lever 76 is pushed back to the escaping position by the force of the spring 74.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder and granular material feeding device such as a fertilizer applied to a rice transplanter, and more particularly, to a technique for preventing forgetting to return an operation for adjusting a fertilizer amount and a method for simplifying the adjustment operation. It is related to the technology to be transformed.

[0002]

2. Description of the Related Art As a conventional structure for simultaneously adjusting the feeding amount of a granular material, as shown in Japanese Patent Application Laid-Open No. 5-103520, one operating shaft that meshes with each adjusting rotating body is provided by:
There are known ones which are performed by turning a handle provided at the shaft end, and those which are performed by turning an operation knob at an operation shaft end as disclosed in Japanese Patent Application Laid-Open No. 4-330219.

[0003]

In any of the structures disclosed in the above publications, the operating shaft is pushed or pulled out,
First, the operating shaft and each adjusting rotary body are engaged, and then the operating shaft is rotated to adjust the feeding amount, and thereafter, the operating shaft is pulled out or pushed in to return to the original position. However, when the planting operation is started with the gears engaged in the adjusted state, forgetting to return to the original state, the operation shaft rotates together with the feeding roll along with the operation of the fertilizer, and the rotation resistance of the operation shaft is reduced. The resulting inertia outside the setting continues to act on the feeding mechanism, and there is a possibility that the adjustment position may be out of order or the fertilization time may be shifted.

Therefore, as disclosed in the former publication, a switch for detecting the slide position of the adjusting shaft is provided to control the planting clutch so that it cannot be operated if the operating shaft is forgotten to be returned. Some are equipped with equipment. Certainly, there is an advantage that the operator forgets to return the plant due to the inoperability of the planting clutch.However, if the switch fails to operate due to rainwater or the control circuit is disconnected, the planting is performed without forgetting to return the plant. There was a face that could not eliminate the risk of running.

Therefore, an object of the present invention is to make it possible to surely solve the above-mentioned inconvenience caused by forgetting to return.

[0006]

[Means for Solving the Problems]

[Structure] In the first invention, a feeding mechanism for feeding powder and granules from a hopper for storing powder and granules is arranged in parallel on the left and right, a feeding amount adjusting mechanism is provided for each feeding mechanism, and each feeding amount adjusting mechanism is operated. A plurality of driving rotators that can be engaged and disengaged from the respective rotation adjusting tools are connected to a rotatable operation rod having a posture along the left and right direction, and each of the operation rods is slid in one direction by a sliding movement. An adjustment operation state in which the driving rotator and each rotation adjusting tool are engaged, and a non-operation state in which the engagement between each driving rotator and each rotation adjusting tool is released by sliding the operation rod in the other direction. In addition to configuring to be able to appear,
An elastic mechanism for returning and biasing the operating rod to slide in the other direction, and an operation against the urging force of the elastic mechanism, in a powder and granular material feeding device equipped with a rotating operating tool at an end of the operating rod. A switching operation tool that can be switched between an operating position in which the rod is slid in one direction and a retracted position in which the rod is not slid in one direction is provided.In a free state, the switching operation tool is pushed back to the retracted position by the urging force. It is characterized by having been constituted.

According to a second aspect of the present invention, in the first aspect, the feeding mechanism comprises a rotatable feeding roll having a concave portion formed on the outer periphery for receiving the powder and granules, and the feeding roll is connected to the feeding roll via a one-way clutch. The linked passive arm and the rotating arm driven and rotated are linked and connected with the link rod, and the feeding roll is rotated in a fixed direction by the reciprocating swinging movement of the passive arm accompanying the rotation of the rotating arm, and A lock mechanism is provided for locking the feeding roll in a non-rotatable manner as the switching operation tool is operated to the operation position.

According to a third aspect of the present invention, in the second aspect, a lock device operable between a lock position for locking the feed roll so that it cannot rotate and a release position for unlocking is provided separately from the lock mechanism. Features.

According to the first aspect of the present invention, the operating shaft is urged to return to the retracted position by the elastic mechanism so as not to forget to return. A switching operation tool is provided which can be switched between an operation position where the operating rod is pushed or pulled out against the urging force of the elastic mechanism and a retracted position where the operation rod is not operated. Is pushed back to the evacuation position.

In short, by operating the switching operating tool with one hand, the operating shaft is first moved to the operating position, and while the switching operating tool is maintained at that position, the turning of the operating shaft end is performed with the other hand. By turning and operating the moving operation tool, it becomes possible to simultaneously adjust the amount of fertilizer. Then, when the fertilization amount adjustment is completed, if both hands are released from each operating tool, the operating shaft is automatically returned to the retracted position where the driving rotary body and the rotation adjusting tool are separated by the biasing force of the elastic mechanism, Planting work is possible without forgetting to return.

In order to eliminate forgetting to return by the elastic mechanism, for example, it is conceivable to provide a spring for returning the operating shaft to the retracted position in the conventional adjusting structure. In this state, labor is concentrated on one hand, that is, the operation of turning while pushing or pulling out is opposed, so that the fine adjustment operation can hardly be performed in practice. On the other hand, in the configuration of the present application, the function of moving the operation shaft against the elastic mechanism and the function of rotating the operation shaft are distributed to both hands to bear the burden, so that a light and fine adjustment operation is performed. You can do it.

According to the second aspect of the present invention, there is provided means for transmitting power to the feeding mechanism using the interlocking rod. That is, since the passive arm on the feeding mechanism side is configured to reciprocate and swing by way of a one-way clutch with respect to the rotating arm on the driving side, a large space for rotating the passive arm is provided in the feeding mechanism part. There is an advantage that it is not necessary to provide it.

By the way, the adjustment of the amount of fertilizer by turning the operation shaft functions by rotating the rotation adjusting tool with respect to the feeding shaft, and means for taking power from the planting mechanism as in the conventional art. When the planting section is stopped, the feed shaft also stops, and the rotation is stopped and maintained at that position. The state of relative rotation with the tool appears, and the increase or decrease can be adjusted.

However, when the one-way clutch is provided, the feeding shaft, that is, the feeding roll can freely rotate to either one of the left and right sides, so that there is a new problem that it is impossible to increase or decrease the amount of fertilizer application. Therefore, in the configuration of claim 2, a lock mechanism is provided that disables the rotation of the feeding roll in accordance with the operation of the switching operation tool to the operation position. And the relative rotation state of the fertilizer is displayed, and the increase and decrease of the fertilization amount can be favorably adjusted.

According to the third aspect of the invention, it is possible to favorably perform the operation of adjusting the feeding amount by the feeding mechanism alone, such as the fertilization adjustment for each strip, while adopting the structure of the second aspect. That is, in order to adjust the feeding amount in the one with a one-way clutch, it is necessary to lock the feeding shaft as described above, and this can be performed by operating the switching operation tool to the operating position. In this state, the operating shaft is in a simultaneous adjustment state in which each rotation adjustment tool is engaged, and in this state, it is impossible to perform single adjustment.

In view of the above, a lock device is provided separately from the lock mechanism so that the feeding roll cannot be rotated. By operating the locking device, only the function of preventing the feeding roll from rotating can be obtained. A single operation of the rotation adjuster is possible, for example, by adjusting the amount of adjustment or finely adjusting the amount.

[Effect] In the granular material feeding device according to the first aspect, (a) the operation of rotating the operating rod and the operation of pushing and pulling the operating rod against the return biasing force are performed as separate operating tools. By devising the feeding amount adjustment with both hands, a simultaneous adjustment structure that does not forget to return the operating rod while performing light adjustment operation was obtained.

In the powder and granular material feeding device according to the second aspect,
(B) The structure of swinging movement of the passive arm by adopting the one-way clutch can save the space of the feeding mechanism part, and the above effect (a) can be obtained without idling of the feeding roll.

According to the third aspect of the present invention, there is provided a powdery or granular material feeding device.
By adding a lock to stop the feeding roll,
There is an advantage that the above-mentioned effect (b) can be obtained while a single operation of the rotation adjusting tool such as mutual adjustment or fine adjustment of the feeding amount can be performed.

[0020]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a seedling planting device 4 as a planting unit is connected to the rear of a riding type traveling body having a pair of left and right front wheels 1 and a rear wheel 2 via a link mechanism 3 so as to be able to move up and down. The fertilizer applicator A is provided at a position in front of the seedling transplanter 4 and immediately after the driver's seat 67 to constitute a rice transplanter with a fertilizer applicator. Reference numeral 43 denotes a fertilizer mounting table for reducing the labor required to supply the fertilizer to the fertilizer hopper 18.

In this rice transplanter, the power of the engine E mounted in the hood 5 of the traveling machine is transmitted to the front wheels 1 via the front transmission case 6 and also transmitted via the traveling system transmission shaft 7 and the rear transmission case 8. It is a four-wheel drive type that is transmitted to the rear wheels 2, and is configured to steer the left and right front wheels 1 by operating the steering wheel 10 of the boarding operation unit 9. A PTO shaft 11, which is a planting system transmission shaft, extends rearward from the front transmission case 6, and power is transmitted from the PTO shaft 11 to the seedling planting device 4, so that the vehicle travels in the field. It is configured so that the seedling planting operation can be performed while performing.

The seedling planting device 4 includes a hydraulic cylinder 1 for lifting and lowering.
With the expansion and contraction operation of 2, the raising and lowering operation can be freely performed between a working position for seedling planting whose lower end is in contact with the field scene and an ascending position which moves largely upward. The seedling rest 14, which reciprocates laterally at a set pitch along the vehicle body width direction with respect to the planting section frame 13 connected and supported by the link mechanism 3,
A plurality (six) of planting mechanisms 15 for taking out seedlings one by one from the lower end of the seedlings to be planted placed on the seedling mounting stand 14 and planting the seedlings in the field, a grounding float for leveling the mud surface while grounding in the field It is configured in a six-row planting format with 58 or the like.

A vertical feeder 16 for feeding a set amount of seedlings placed at the end of the lateral movement stroke toward the planting mechanism 15 is provided at a seedling placing portion of the seedling placing table 14 for each planting line. Have been. The vertical feeding device 16 is configured such that a belt with a projection is wound over a pair of upper and lower pulleys, and a lower pulley is rotated by a predetermined amount by a contact action at a stroke end.

The vertical feed device 16 has a vertical feed clutch (not shown) which can be switched between a state in which the vertical feed operation is performed and a state in which the operation is stopped every two lines, although the structure is not described in detail. Is provided. In the ground float 58, at each location adjacent to the planting site of the seedling in each planting line, a groove for entering the mud layer below the ground surface and supplying fertilizer to the mud surface. Is formed.

Next, the fertilizer applicator A will be described. FIG.
As shown in the figure, the fertilizer applicator A comprises a three-piece integrated fertilizer hopper 18 for storing powdered and granular fertilizer, a feeding mechanism 19 for feeding a predetermined amount of fertilizer therefrom, and a seedling planting device for feeding the fed fertilizer. And a fertilizing hose (an example of a flow-down route) 21 to be sent to the groove generator 17 of No. 4. The feeding mechanism 19 has a funnel section 18 for each strip of the fertilizer hopper 18.
located below a, a plurality (6) corresponding to each planting strip
It is provided. The fertilizer fed from each feeding mechanism 19 is forcibly transferred to each of the groove producing devices 17 through the fertilizing hose 21 by blowing air from the blower 20.

As shown in FIG. 3, the feeding mechanism 19 is fitted inside the casing 22 so as to be rotatable integrally with the feeding shaft 23 in a state facing the bottom opening of the fertilizer hopper 18 and has an outer peripheral portion. Is provided with a plurality of recesses 24 for receiving fertilizer at a predetermined pitch, and the fertilizer stored in the recesses 24 with the rotation of the delivery rotator 25 is filled with a lower funnel. The guide section 26 is configured to be guided downward. In addition, a brush 27 for scraping is provided so as to store a predetermined amount in the recess 24.

The brush 27 is swingable around the horizontal axis P between an operation position located on the outer peripheral surface of the feeding rotator 25 and a fertilizer discharging position separated from the feeding rotator 25, and the brush 22 is provided with a casing 22. Swing together with the switching operation of the switching operation tool 31 provided on the lateral side outside of the vehicle, so that the position is held at each position.

Each of the casings 22 in each of the plurality of feeding mechanisms 19 is supported by a vertical frame 29 fixedly provided upright from the body frame F, and is fixedly supported by a horizontal frame 30 extended in the lateral direction of the vehicle body. Extension shaft 2
Reference numeral 3 denotes each of the payout rotating bodies 2 for each of the pair of payout mechanisms 19.
5 is provided so as to be divided into three so as to rotate integrally, and two of the six feeding mechanisms 19 are provided.
It is configured such that it can be individually driven and stopped for each time.

The driving configuration of the feeding mechanism 19 will be described. As shown in FIG. 2, at a position on the rear side of the feeding mechanism 19, the length extends over substantially the entire width of the fertilizer applicator A along the vehicle width direction, and is rotatably supported at both ends. A drive shaft 32 is provided, and a one-way clutch 33 is provided at an intermediate portion of the drive shaft 32 in the width direction. Operation arm 34 of one-way clutch 33 and bevel gear mechanism 2
8 and a rotating arm 36 attached to a lateral transmission shaft 35 that is driven to rotate by the PTO shaft 11 via an interlocking rod 37. The operating arm 34 swings with the rotation of the rotating arm 36. The drive shaft 32 is intermittently rotated only in a predetermined direction by the one-way clutch 33.

Further, between the drive shaft 32 and each of the three feed shafts 23, a fertilizing clutch 38 capable of freely turning on and off the power is separately provided. The fertilizing clutch 38 is shown in FIG.
As shown in FIG. 5, a gear 39 externally rotatably fitted to the drive shaft 32 and a gear 40 externally rotatably fitted to each of the payout shafts 23 are provided in a meshing state. A clutch piece 41 that is rotatable integrally with the drive shaft 32 and slidable in the direction of the axis of rotation is externally fitted to the lateral side of the gear 39 on the side of the gear 32 in a state where the clutch piece 41 is spring-biased toward the direction approaching the gear 39. Then, at a position where the clutch piece 41 and the gear 39 face each other,
A meshing portion k is formed, and when the meshing portion k meshes, they rotate integrally.

Each clutch piece 41 is connected to an operation wire 41a.
Is configured to be able to be cut individually by the pulling operation. That is, the operating wire 41a is linked to one end of the L-shaped crank arm (not shown) swingably supported by the member on the side of the horizontal frame 30, and the clutch piece 41 is linked to the other end. As a result, the clutch is engaged with the engagement portion k, and the pulling operation of the operation wire 41a causes
The meshing portion k is separated against the spring force to switch to the clutch disengaged state.

The structure for adjusting the feeding amount will be described. As shown in FIGS. 2 and 6, a feeding amount adjusting mechanism D is provided for each feeding mechanism 19, and can be engaged with and disengaged from each of the gear-shaped rotation adjusters 70 that operate the respective feeding amount adjusting mechanisms D. The six gear-shaped driving rotators 71 are connected to a rotatable operation rod 72 having a posture along the left-right direction. An adjusting operation state in which each drive rotating body 71 and each rotation adjusting tool 70 engage (engage) by sliding movement of the operating rod 72 to the left (one direction), and a rightward direction (other direction) of the operating rod 72.
The non-operating state in which the engagement between each drive rotator 71 and each rotation adjuster 70 is released by the sliding movement of the rotator 70 is configured to appear. At the right end of the operation rod 72, a handle (an example of a rotation operation tool) 75 formed by bending the operation rod is provided.

The feeding amount adjusting mechanism D includes a fixed roll 25a.
A known structure in which the movable width of the fertilizer into the recess 24 is variably set by moving the movable roll 25b in and out of the movable roller 25b, and the fixed roll 25a and the movable roll 25b constitute the feeding rotating body 25. The rotation adjuster 70 slides the movable roll.

As shown in FIG. 7 to FIG.
The bracket 73 is slidable left and right at a position above the drive shaft 32 and behind the feed shaft 23.
The operating rod 72 is biased back to the right by a return spring (an example of an elastic mechanism) 30a mounted on a U-shaped stay 74 bolted to the horizontal frame 30 while being supported by the horizontal frame 30. The driving rotator 71 and the rotation adjuster 70 are in a non-operating state in which the bite is released.

The operation position (the position indicated by the phantom line in FIG. 9) for sliding the operating rod 72 to the left against the urging force of the return spring 74, and the retracted position (the position in FIG. A switching lever (an example of a switching operation tool) 76 that can be switched between the vertical frame Y and the horizontal frame 30 is supported on the horizontal frame 30 so as to be swingable about the vertical axis Y. That is, the pin 7 protruding upward is attached to the handle-side end of the operating rod 72.
A boss 77 with 7a is externally fitted so as not to slide relatively,
The pin 77a is fitted into a long hole 76a formed on the base side of the switching lever 76, so that the operating rod 72 can be moved back and forth by swinging the switching lever 76. In addition, by the urging force of the return spring 74,
In the free state, the switching lever 76 is also pushed back to the retracted position.

A boss portion 76 for supporting the switching lever 76
A lock lever 78 having a substantially laterally U-shaped clamp member 78a at the end thereof is fixed below b, and as the switching lever 76 is operated to the operating position, the feeding roll, that is, the feeding shaft 23 is moved. The lock mechanism G is configured so as to lock the rotation of the motor. That is, with the operation of the switching lever 76 from the retracted position to the operation position, the lock lever 78 is operated.
Is also swung to the operating position, and the clamp member 78a fits on two opposing surfaces of the drive shaft 32, which is a hexagonal axis.

Therefore, in order to adjust the feeding amount, first,
With the right or left hand, the switching lever 76 in the retracted position is swung to the operation position, and the operating rod 72 is pushed in to the adjustment operation state, and the lock mechanism G is operated to disable the drive shaft 32 from rotating. . Then, while maintaining that state, the handle 75 is rotated with the left hand or the right hand to increase or decrease the feeding amount adjustment mechanism D. When the adjustment is completed, the operation rod 72 is pushed back rightward by the action of the return spring 74 simply by releasing the grips of both hands, and the switching lever 76 naturally returns from the operation position to the retracted position.

As shown in FIG. 4, a lock device 79 operable between a lock position for locking the feed shaft 23 so that it cannot rotate and a release position for unlocking the lock shaft 23 is provided separately from the lock mechanism G.
Are provided. The lock member 79 has a stop portion 79a fitted to two opposing surfaces of the feeding shaft 23 at the tip, and
The stop portion 79a is made of a bar having a knob 79b at the base end, and is urged by a return spring 80 toward a release position where the stop portion 79a is disengaged from the feeding shaft 23.

The lock members 79 are the third and fourth from the right.
The position between the fifth feeding mechanism 19, 19, the fifth and sixth
A knob 79b is provided at a total of two positions, that is, a position between the second feeding mechanisms 19, 19, in a front-rear posture facing the front of the body, and the feeding shaft 23 can be easily turned by a finger operation from the driver seat 67 side. The rotation adjustment tool 7 can be locked immovably.
By directly turning 0, the feeding amount of each feeding mechanism 19 alone can be adjusted.

As shown in FIG. 2, a round-shaped blower pipe 45 is disposed in front of the casing 22 in such a manner that its longitudinal direction extends along the width of the vehicle body. The blower 20 is provided so as to be supported by the horizontal frame 30, and the wind of the blower 20 provided at one lateral end of the blower pipe 45 is supplied into the blower pipe 45.

As shown in FIG. 3, a fertilizer supply section 51 communicating with the lower end outlet 50 of the funnel-shaped guide section 26 and opening toward the rear of the machine is formed, and the fertilizer hose 21 is inserted and mounted therein. On the front side of the fertilizer supply unit 51, an air supply unit 52 that connects the lower end outlet 50 and the inside of the blower pipe 45 is formed, and the air supply unit 52 and the fertilizer supply unit 51 are connected to the front and rear of the vehicle body. It is formed so as to be continuous in a substantially straight line along the direction. A discharge section 54 is formed below the lower end outlet 50 to form a discharge path 53 that connects the lower end outlet 50 to the inside of the discharge pipe 48.
Incidentally, the other end of the blower pipe 45 is normally closed by a lid 45a which can be freely opened and closed.

A path switching plate 55, which is capable of switching between a feeding state in which the powdery and granular fertilizer fed from the feeding mechanism 19 is guided to the fertilizing hose 21 and a discharging state in which the fertilizer is guided toward the discharging path 53, is provided with a feeding mechanism. It is provided corresponding to each of the nineteen. The path switching plate 55 is pivotably supported around the left and right axis X, and can be switched between a supply position and a discharge position by operating a switching lever 56 provided outside the guide portion 26. The supply position is a position where the discharge route 53 is closed and the fertilizer supply unit 51, that is, the fertilizer hose 21 and the blower pipe 45 communicate with the lower end outlet 50, and the discharge position is the internal passage of the fertilizer supply unit 51. At a position where the discharge path 53 and the blower pipe 45 communicate with the lower end outlet 50.

Each discharge section 54 is provided with a discharge pipe 48 for guiding and discharging the discharged fertilizer downward and forward of the machine body, and each discharge pipe 48 is connected to each of the discharge pipes 48 shown in FIGS.
As shown in the figure, three pipes each on the left and right sides are one large-diameter confluence pipe 4 at the lower side in the fertilizer guide direction.
The fertilizer is joined to 8a and distributed to both right and left sides, so that the fertilizer is discharged from a common fertilizer discharge port 49.

When the fertilizer is applied during the seedling planting operation, the path switching plate 55 is switched to the supply position and the blower 20 is turned on.
Of the fertilizer fed by a predetermined amount from the feeding mechanism 19 is sent out from the lower end outlet 50 through the fertilizer supply unit 51 and the fertilizer hose 21 toward the groove generator 17 by wind power and supplied to the field. You do it.

After completion of the planting operation, the fertilizer hopper 1
In order to collect the fertilizer remaining in the hopper 8, the switching lever 56
Is switched to the discharging position, and the brush 27 of the feeding mechanism 19 is switched to the fertilizer discharging position separated from the feeding rotating body 25 to discharge the fertilizer. From 50, it passes through the discharge path 53 and the discharge pipe 48, and is discharged from the fertilizer discharge port 49 to the outside. Therefore, if a collection container or the like is positioned corresponding to the fertilizer discharge port 49, fertilizer can be collected.

[Another Embodiment] A knob for turning operation may be provided at the end of the operation shaft 72 instead of the handle 75.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter.

FIG. 2 is a rear view of the fertilizer application device.

FIG. 3 is a longitudinal side view of the fertilizer supply unit.

FIG. 4 is a side view showing a fertilizer application clutch and a lock device.

FIG. 5 is a plan view showing a fertilizing clutch.

FIG. 6 is a cross-sectional view showing a feeding amount adjusting structure.

FIG. 7 is a front view showing the lock mechanism in a retracted position.

FIG. 8 is a plan view showing the lock mechanism in the operation position.

FIG. 9 is a plan view showing the operation of the lock mechanism.

[Explanation of symbols]

 Reference Signs List 18 Hopper 19 Feeding mechanism 24 Recess 25 Feeding roll 33 One-way clutch 34 Passive arm 36 Rotating arm 37 Interlock rod 70 Rotation adjusting tool 71 Drive rotating body 72 Operating shaft 74 Elastic mechanism 75 Rotating operating tool 76 Switching operating tool 79 Locking tool D Feeding Amount adjustment mechanism G Lock mechanism

 ──────────────────────────────────────────────────の Continued on the front page (72) Yoshiyoshi Nakagawa, 64, Ishizukita-cho, Sakai-shi, Osaka Inside the Kubota Sakai Works, Inc. Inside

Claims (3)

[Claims] 1. A feed mechanism for feeding powder and granules from a hopper for storing powder and granules is arranged in parallel on the left and right sides, a feed rate adjusting mechanism is provided for each feed mechanism, and a rotation adjustment for operating each feed rate adjusting mechanism. A plurality of drive rotating bodies that can be engaged and disengaged from each other are connected to a rotatable operation rod having a posture along the left-right direction, and each of the drive rotation members is slid in one direction by this operation rod. An adjusting operation state in which the body and the respective rotation adjusting tools are engaged, and a non-operating state in which the engagement between the respective driving rotary bodies and the respective rotation adjusting tools is released by sliding the operation rod in the other direction. And a rotation mechanism is provided at the end of the operation rod, and the return operation is performed such that the operation rod slides in the other direction. Elastic mechanism, and the elasticity A switching operation tool that can be switched between an operating position in which the operating rod is slid in the one direction against the biasing force of the structure and a retracted position in which the operating rod is not slid in the one direction; A powder and granular material feeding device configured such that the operating tool is pushed back to the retracted position by the urging force. 2. The delivery mechanism includes a rotatable delivery roll having a concave portion for entering a granular material formed on an outer periphery thereof, and a passive arm interlocked with the delivery roll via a one-way clutch. A rotating arm that is driven and rotated by an interlocking rod, and is configured to rotate the payout roll in a fixed direction by reciprocating swinging movement of the passive arm accompanying rotation of the rotating arm; 2. The powder and granular material feeding device according to claim 1, further comprising: a lock mechanism that locks the feeding roller so that the feeding roller cannot rotate when the device is moved to the operation position. 3. The powder particle according to claim 2, wherein a lock device operable between a lock position for locking the feed roll so that it cannot rotate and a release position for unlocking is provided separately from the lock mechanism. Body extension device.