JPH08224513A - Power sprinkler - Google Patents

Abstract

PURPOSE: To provide a power sprinkler constituted so that good stability is obtained by lowering the total height and center-of-gravity position of 5 machine body part and the power of a motor can be utilized so as to be appropriately distributed to the driving power of a blower and running power if necessary and the vibration of the motor or the blower is made hard to transmit to the handle connected to a substrate. CONSTITUTION: A substrate 11 equipped with wheels 17, 19 is loaded with a storage tank 70 storing a material to be sprinkled, a blower 20 forming the feed air sprinkling the material to be sprinkled in the storage tank 70 and the motor 30 becoming the drive source of the blower 20. The rotary shaft 24 of the fan 25 of the blower 20 is vertically arranged and the power of the motor 30 is transmitted to the blower and the wheel 19 through belts 37, 38 and, in order to selectively interrupt the power transmission if necessary, belt tension clutches 40, 50 are provided to the belts 37, 38. A damaping member 27 is interposed between the substrate 11 and the blower 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power spreader adapted to carry out a spraying operation of powdery or liquid sprays such as pesticides, fertilizers and seeds while traveling on a ridge.

[0002]

2. Description of the Related Art Conventionally, as a power spreader used for controlling rice fields, fertilizing, etc., a backpack type power spreader has been generally used. This backpack type power spreader is a storage tank, a blower, a prime mover, etc. The weight of the pesticides, fertilizers, seeds, etc. to be sprayed stored in the storage tank is added in addition to the fact that it is considerably heavy only in the airframe part, so it is carried on the back of a ridge or a field with poor footing. However, spraying work becomes extremely heavy work, and considering the recent aging of agricultural workers, it is possible to carry out spraying work while the storage tank, blower, and prime mover are mounted on a trolley. desired.

In order to meet such a demand, for example, as shown in Japanese Utility Model Publication No. 4-50929, a storage tank for storing scattered materials on a base body (carriage) equipped with wheels, and the storage tank. A centrifugal blower for generating a carrier wind for spraying the sprayed matter inside, and an engine as a prime mover that is a drive source of the blower are mounted, and a push handle is provided to push the cart. A traveling power spreader has been proposed in which the blower is driven by the engine while the handle is pushed to drive the blower, and the spraying work is performed via a spraying device such as a jet pipe connected to the blower.

[0004]

However, the conventional traveling type power spreader as described above has the following problems to be improved. A relatively large centrifugal blower is arranged sideways with the rotation axis of the fan oriented horizontally, and the crankshaft of the engine is directly connected to the rotation axis.
Since the storage tank is located above the blower and is mounted on the trolley as it is on a backpack, the overall height of the machine body (the portion including the storage tank, engine, blower, etc.) is high and the center of gravity is also high. As a result, stability becomes worse, and when traveling on rough terrain such as ridges with large unevenness, it is difficult to control the aircraft and it is easy to fall.

[0007] Traveling on rough terrain by hand requires a great deal of labor, if not the same as a backpack, and is inferior in running stability and operability. Therefore, it is desirable to use a self-propelled vehicle. Installing a separate prime mover for traveling is disadvantageous in terms of cost, weight, and space,
It is desired that the power of a single prime mover installed can be appropriately distributed and used for driving a blower and for running, with a relatively simple structure.

[0006] If vibrations of a prime mover, a blower or the like are transmitted to a handle connected to a base body, operability is deteriorated and tired easily. Therefore, it is desirable to take measures to eliminate this. In view of such a point, an object of the present invention is to solve the above problems, a power spreader, specifically, the overall height and center of gravity of the body can be lowered to obtain good stability, and the power of the prime mover can be increased. It is an object of the present invention to provide a power spreader which can be appropriately distributed and used for driving a blower and for traveling, and in which vibrations of a prime mover, a blower and the like are hard to be transmitted to a handle connected to a base.

[0007]

In order to achieve the above object, a power spreader according to the present invention comprises a base body provided with wheels,
A storage tank for storing the sprayed material, and a blower for generating a carrier air for spraying the sprayed material in the storage tank,
It has a basic configuration in which a prime mover serving as a drive source of the blower is mounted, and a rotation axis of a fan in the blower is arranged vertically.

In a preferred embodiment of the present invention,
(1) The power of the prime mover is transmitted to the blower and the wheels through belts, and belt tension clutches are attached to the belts to selectively connect and disconnect the power transmission as necessary. (2) One in which a handle is connected to the base body and a vibration-proof member is interposed between the base body and the blower and the prime mover.

Another one of the power spreaders of the present invention is
In addition to the basic structure, a jet pipe is connected to the discharge port of the blower, and a large number of spray ports are formed in a line at the tip of the jet pipe, and the end is closed. A joint to which a flexible hose is connected is rotatably connected, and an arc gear is provided on the outer periphery of the joint, and a motor having a pinion fixed to the gear at the tip of the injection pipe is fixed. It is characterized by being attached.

[0010]

In the power spreader according to the present invention having the above-mentioned structure, the fan is erected so that the rotation axis of the fan is along the vertical line, and the blower is laid down unlike the case of the backpack type. Since they are arranged in a state, it is possible to lower the overall height of the body part and the position of the center of gravity of the whole body, and it is possible to make it difficult to fall when traveling on rough terrain such as a ridge with large unevenness.

Further, the power of the prime mover is distributed to the blower and the wheels via the belt, and the transmission of the power is selectively connected / disconnected as needed via the belt tension clutch. The power of the prime mover can be effectively used to perform the spraying work while the medium is self-propelled, and the increase in cost, weight and space can be suppressed, and the labor required for the spraying work can be reduced. In this case, for example, the power of the prime mover can be transmitted only to the wheels and the blower can be stopped until the work site is reached, which reduces noise and fuel consumption when traveling without spraying. it can.

Further, a handle is connected to the base body, and
By interposing the anti-vibration member between the base body and the blower and the prime mover, vibrations of the prime mover and the blower are less likely to be transmitted to the handle, and good operability and fatigue can be reduced. On the other hand, a jet pipe is connected to the discharge port of the blower, a joint to which a spray hose is connected is rotatably connected to the tip end of the jet pipe, and an arc gear is provided on the outer periphery of the joint. A motor with a pinion that meshes with the gear is fixed to the tip of the injection pipe, and switches that control the operation of the motor are arranged near the grip of the handle and operated so that the motor can run. The spraying hose can be turned by hand, in other words, the blowing direction of the powder or granular material can be arbitrarily changed according to the wind direction and the like, and the spraying work can be efficiently performed by one person.

[0013]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. 1 to 3 are a side view, a plan view, and a front view showing an embodiment of a power spreader according to the present invention. The power spreader 10 of the illustrated example is an example suitable for spraying powdered and granular spread materials, and includes a frame 12 having a frame shape, two horizontal members 14 and 14 arranged in a ladder shape, and those. A front wheel 17 made of pneumatic tires and a wide cylindrical rear wheel 19 with a rubber lug are provided at the front end and the rear end of the base body 11 composed of the receiving plate 15 placed on the ridge so that the vehicle can stably run on the ridge. And are rotatably mounted. Scrapers (soil removal plates) 18, 18 are arranged on the rear side of the front wheels 17 and the rear wheels 19. Further, on the front end portion of the base body 11, a line marker 29 is set upright for facilitating the straight steering operation of the base body II.

On the base 11, vibration-damping members 27, 27, 27, made of four cushion materials such as rubber are provided.
The centrifugal blower 20 is arranged via 27 in a state in which the rotation shaft 24 of the fan 25 is erected so as to be along a vertical line, in other words, in a vertical form. A storage tank 70 for storing sprayed products such as pesticides, fertilizers and seeds to be sprayed is provided on the central portion of the fan 20 in the fan volute case 22 having the intake port 20A on the upper surface of the blower 20. Is connected and supported, and the scattered matter in the storage tank 70 is caused to fall downward when a shutter (not shown) is opened, so that the scattered air generated by the blower 20 rides on the fan volute. It is sprayed to the outside via a jet pipe 85 and a jet head 99 which will be described later and are connected to the air outlet 22a at the end of the case 22.

A small air-cooled two-stroke gasoline engine 30 serving as a combined drive source for the blower 20 and the rear wheels 19 is provided on the central upper surface of the fan volute case 22 of the blower 20 on the rear side of the base 11. The crankshaft 32 is fixedly held on the cylindrical support mounting portion 28 in a state of standing along the vertical line like the rotating shaft 24 of the fan 25, and the center of gravity of the entire machine body is set to the rear side. It moves closer to the wheel 19 side to improve running stability.

Further, the base end mounting portions 67 of the pair of left and right handles 61A and 61B are mounted on both sides of the rear portion of the base 11 via fixing plates 68. The handle 61
Grips 62A and 62B are provided at the upper ends of A and 61B, and clutch operating levers 63A and 63B are provided. The power of the engine 30 is transmitted to the rotary shaft 24 of the fan 25 via a large-diameter drive pulley 33 fixed to the crankshaft 32, a V-belt 37, and a driven pulley 35, if necessary. Small diameter drive pulley 34 fixed to the crankshaft 32, V belt 38, driven pulley 36, relay shaft 39, universal joint 39A, reduction gear 4
5, the small diameter sprocket wheel 46, the chain 47, and the large diameter sprocket wheel 48 are appropriately decelerated and transmitted to the rear wheel 19.

Here, in order to connect and disconnect the power transmission of the engine 30 by the both V belts 37, 38 as needed, the both V belts 37, 38 are provided on the side of the blower 20 of the pair respectively. Suitable for power transmission by a loose state (non-transmission state) loosely wound between the pulleys 33 and 35 and between the pulleys 34 and 36 on the rear wheel 19 side and belt tension clutches 40 and 50 described later. The tension state (transmittable state) in which the tension is applied can be selectively obtained.

As shown in FIG. 2, the belt tension clutch 4 attached to the V belt 37 on the blower 20 side.
0 has a swing lever 41 to which a tension roller 43, which is pressed against the V belt 37, is attached to one end thereof. A central portion of the swing lever 41 is swingably supported by a pin 42 that is erected on a fixed portion (here, the upper surface of the blower 20), and the other end portion is the left side through a Bowden cable 64A. Is connected to the clutch operating lever 63A, and the tension roller 43 is constantly urged by a spring (not shown) in the direction of separating from the V belt 37. Therefore, when the clutch operating lever 63A is not gripped by the operator's hand, the swing lever 41 is held at a predetermined position by the urging force of the spring, so that the tension roller 43 moves from the V belt 38. The belt tension clutch 40 is separated from the belt tension clutch 40 to be in a disengaged (non-transmitted) state. At this time, the V-belt 37 is in a loosened state, so that power is not transmitted to the blower 20. For it,
When the clutch operating lever 63A is squeezed, the swing lever 41 swings against the urging force of the spring, and the V belt 37 is in a connected (transmittable) state in which the swing lever 41 falls to the V belt 37 side, and the V belt 37 is in a tensioned state. The transmission of the power is carried out by being turned on. Thereby, the fan 2 of the blower 20
5 is rotated to generate carrier air for spraying.

On the other hand, the V belt 38 on the rear wheel 19 side
Similarly to the clutch 40 on the side of the blower 20, the belt tension clutch 50 attached to has a swing lever 51 to which a tension roller 53 that is pressed against the V belt 38 is attached. ing. A central portion of the swing lever 51 is swingably supported by a pin 52 which is erected on a fixed portion, and the other end thereof is connected to the right clutch operation lever 63B via a Bowden cable 64B. Further, the tension roller 53 is constantly urged by a spring (not shown) in a direction in which the tension roller 53 is separated from the V belt 38. Therefore, when the clutch operating lever 63B is not gripped by the operator's hand, the swinging lever 51 is held at a predetermined position by the urging force of the spring, so that the tension roller 53 moves away from the V belt 38. The belt tension clutch 50 is separated from the belt tension clutch 50 and is in a disengaged (non-transmitted) state. At this time, the V-belt 38 is in a relaxed state, so that power is not transmitted to the rear wheel 19 side. For it,
When the clutch operating lever 63B is squeezed and held, the swing lever 51 swings against the biasing force of the spring, and the V belt 38 is in a connected (transmittable) state in which it falls toward the V belt 38 side, and the V belt 38 is in a tensioned state. The transmission of the power is carried out by being turned on. As a result, the power of the engine 30 is transmitted to the rear wheels 19 and the base body II is driven to travel. In this embodiment, the clutch operating lever 63A,
It is safe because if you let go of 63B, the work will be interrupted immediately.

In addition to the above construction, in this embodiment, a jet pipe 85 having a length adjustable so as to be adjustable is connected to the discharge port 22a forming the end of the fan volute case 22 of the blower 20. As can be seen with reference to FIGS. 4 to 7 as well, a large number of spray ports 92a, 92a,-(see FIG. 7) are formed at the tip of the injection pipe 85 so as to be aligned, and A flexible thin-walled vinyl hose 92 having a closed portion is provided with a tightening metal fitting 101.
The joint 90 connected by is rotatably connected, and the arc-shaped gear 91 is fixed to the outer periphery of the joint 90.
A DC motor 87 having a pinion 88 meshing with the gear 91 fixed to the tip of the injection pipe 85 is mounted on a bracket 86.
It is attached and fixed through.

Further, on the outer peripheral portion of the joint 90, the spray port 92 of the hose 92 disposed in the joint 90 is disposed.
The DC motor 95 for rotating the wind pressure adjusting plate 94 for adjusting the discharge pressure from the a, 92a ,.
It is attached and fixed via 6. In the power spreader 10 of the present embodiment configured as described above, the rotation shaft 24 of the fan 25 in the blower 20 is set up along a vertical line, and the blower 20 is arranged in a lying state. Therefore, it is possible to lower the overall height of the body part (the part including the blower 20, the engine 30, the storage tank 70, etc.) and the position of the center of gravity of the whole body, and when traveling on uneven terrain such as a ridge with large unevenness The stability of the can be improved, and it can be made difficult to fall.

The power of the engine 30 is the V belt 3
It is distributed to the blower 20 and the rear wheel 19 via 7, 38, and the power transmission thereof is performed by the belt tension clutch 4
By selectively connecting and disconnecting 0, 50 as needed, the power of the single engine 30 can be effectively used to perform self-propelled spraying work, and cost, weight, and space can be increased. And the labor required for spraying work can be reduced. In this case, for example, only the right clutch operation lever 63B is gripped and the power of the engine 30 is transmitted only to the rear wheels, and the left clutch operation lever 63A is released until the blower 20 until the work site is reached. Can also be stopped, which reduces noise and fuel consumption when traveling without spraying.

Further, the base body 11 has handles 61A, 61
The vibration of the engine 30 or the blower 20 or the like is applied to the handles 61A and 61B by connecting B and connecting the base 11 and the blower 20 and the engine 30 with the vibration-proof members 27, 27 ,. Is less likely to be transmitted, good operability can be obtained, and fatigue can be reduced.

On the other hand, the jet pipe 8 is attached to the discharge port 22a of the blower 20.
5 is connected, and the spray hose 92 is connected to the tip of the injection pipe 85.
The joint 90 to which is connected is rotatably connected.
An arc gear 91 is provided on the outer periphery of 0, and a pinion 88 that meshes with the gear 91 is provided at the tip of the injection pipe 85.
Is mounted on the joint 90, and a DC motor 95 for rotating the wind pressure adjusting plate 94 disposed inside the joint 90 is attached to the outer periphery of the joint 90. Energizing cables 103 and 104 for supplying electric power from a battery (not shown) are routed to the handles 61A and 61B, and switches (not shown) for controlling the operations of the two motors 87 and 95 are provided near the grips 62A and 62B of the handle. By arranging and operating the base II, the spray hose 92 can be turned at hand while traveling, in other words, the blowing direction of the powder or granules can be arbitrarily changed according to the wind direction and the like. Exhaust pressure from the spray ports 92a, 92a, of the hose 92, in other words, as shown by the alternate long and short dash line in FIG. You can adjust the lift amount of over scan 92, can be performed efficiently spraying work alone.

It is to be noted that, instead of the rising jet pipe 85, another spraying device such as a ridge spray jet 99 for sink spraying as shown by a chain line in FIG. 3 is attached to the discharge port 22a of the blower 20. You can also Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed.

[0026]

As can be understood from the above description, the power spreader according to the present invention can lower the overall height and center of gravity of the machine body to obtain good running stability and reduce the power of the prime mover. The present invention has an excellent effect that it can be appropriately distributed and used for driving the blower and for traveling, and that the vibration of the prime mover, the blower and the like can be hardly transmitted to the handle connected to the base body.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a power spreader according to the present invention.

FIG. 2 is a plan view of the power spreader shown in FIG.

FIG. 3 is a front view of the power spreader shown in FIG. 1.

4 is a partially cutaway enlarged perspective view showing the vicinity of an upper end portion of a jet pipe connected to the power spreader shown in FIG.

5 is a side center cross-sectional view showing the vicinity of the upper end portion of the injection pipe connected to the power spreader shown in FIG.

FIG. 6 is a front vertical cross-sectional view showing the vicinity of the upper end portion of the injection pipe connected to the power spreader shown in FIG. 1.

FIG. 7 is a diagram provided for explaining the operation of the spray hose connected to the injection pipe of the power sprayer shown in FIG. 1.

[Explanation of symbols]

 10 Power Disperser 11 Base 17 Front Wheel 19 Rear Wheel 20 Blower 22a Discharge Port 24 Rotating Shaft 25 Fan 27 Vibration Isolator 30 Motor 37, 38 V Belt 40, 50 Belt Tension Clutch 61A, 61B Handle 70 Storage Tank 85 Jet Tube 87 Motor 88 Pinion 90 Joint 91 Gear 92 Spreading hose 92a Spreading port

Claims (4)

[Claims] 1. A storage tank 70 in which scattered materials are stored in a base 11 provided with wheels 17 and 19, and the storage tank 70.
A blower 20 for generating a carrier wind for spraying the sprayed matter therein and a prime mover 30 as a drive source of the blower 20 are mounted, and a rotary shaft 24 of a fan 25 in the blower 20 is vertically arranged. Power spreader characterized by being 2. The power of the prime mover 30 is the blower 20.
Also, belt tension clutches 40 and 50 are respectively attached to the wheels 37 and 38 so as to be transmitted to the wheels 19 via belts 37 and 38, respectively, and selectively connect and disconnect the power transmission as required. The power spreader according to claim 1, wherein 3. Handles 61A, 61B on the base body 11
3. The power spreader according to claim 1 or 2, characterized in that vibration damping members 27, 27, ... are interposed between the base 11 and the blower 20 and the prime mover 30. . 4. A storage tank 70 for storing sprayed substances, and a storage tank 70 for storing a substance to be scattered, in a base 11 provided with wheels 17, 19.
A blower 20 for generating a carrier wind for spraying the sprayed matter inside, and a prime mover 30 as a drive source of the blower 20.
Is mounted, and the injection pipe 85 is connected to the discharge port 22a of the blower 20,
A large number of spray ports 92a, 92 are provided at the tip of the injection pipe 85.
The joint 90 to which a flexible hose 92 having a closed end is formed is formed so as to be aligned in a straight line, and is rotatably connected to the outer periphery of the joint 90. The gear 91 is provided and the injection pipe 85 is provided.
A motor 87, to which a pinion 88 meshing with the gear 91 is fixed, is attached to the tip of the motor 87.