JPH0642425Y2 - Display device in fertilizer applicator - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention is designed to display the detection results of the remaining amount detector of the fertilizer tank and the transfer detector of the transfer route in a concentrated manner at the rear part of the fertilizer tank. The display device in the fertilizer application.

(B) Conventional technology Conventionally, fertilizer applicators are provided with fertilizer tanks on both sides of the machine frame, residual quantity detectors are provided at the upper ends of the fertilizer tanks, and transfer detectors are provided near the base of the handle at the lower rear of the fertilizer tanks. Is already known from Japanese Utility Model Publication No. 62-134324.

(C) Problems to be solved by the invention Since the known fertilizer applicator was provided with the transfer detector and the fuel gauge of the fertilizer tank dispersed in the front, rear, upper and lower parts, the traveling direction of the machine, During work in which attention must be paid to the relationship with the previous stroke and other various changes, the position above the front of the fuel gauge must be visually checked, and the transfer detector must be viewed from the rear below. There was a problem that the confirmation of the indicator was troublesome and the confirmation was omitted.

Further, since the mounting positions of the remaining amount detector and the remaining amount gauge, and the transfer detector and its indicator were separated from each other in the front, rear, up, and down, the assembly and the maintenance were troublesome.

(D) Means for solving the problem The present invention transfers fertilizer in the fertilizer tank mounted in the approximate center of the machine frame to the fertilizer application unit through the delivery device and the transfer route, and detects the remaining amount in the fertilizer tank. A fertilizer applicator with a fertilizer tank attached, a transfer detector attached to the transfer path, and an operating part provided at the rear of the fertilizer tank, the fertilizer tank has a terminal lower end extending rearward to form an upper part thereof in a recess, The above-mentioned problem was solved by providing the remaining amount detector and the transfer detector together in this recess and arranging the display portions of the remaining amount detector and the transfer detector laterally immediately after that.

(E) Action The fertilizer in the fertilizer tank is transferred by the delivery device through multiple transfer routes and applied to the field. The residual amount detector indicates the residual amount in the fertilizer tank, and the transfer confirmation meter indicates the transfer condition of the transfer route. The lower part of the fertilizer tank is detected in the recess formed in the upper part of the part that extends rearward, and the detection results are displayed on the indicator attached to the rear part of the fertilizer tank.
The driver can visually recognize both display values simultaneously and accurately without moving the line of sight in multiple directions such as front, rear, up and down.

Also, when assembling a display device that displays the detection result of the remaining amount detector and a display device that displays the detection result of the transfer confirmation meter,
They can be easily installed in a single area, the recess at the top rear of the fertilizer tank.

Furthermore, by extending the fertilizer tank below the remaining amount detector and the transfer detector, the capacity can be increased without impairing the stability of the machine body.

(F) Embodiment An embodiment of the present invention will be described with reference to the fertilizer transplanter shown in the drawings. 1 is an engine 2 mounted on the front part, and wheels 4 and 4 are supported on both sides via swing chain cases 3. A body equipped with a planting device 5 having a driving section 5a and a seedling stand 5b tilted backward at the rear part, and a center float 6 and side floats 7,7 are attached to the lower part, and the floats 6,7, 7 is equipped with fertilizer pipes 10 ... which face the side of each plant 8 of the planting device 5 and are inserted into mud.

A fertilizer tank 11 and a pump 12 serving as a delivery device are mounted on the machine body 1 between the wheels 4 and 4, and an intake port of the pump 12 is connected to a discharge port provided at the bottom of the fertilizer tank 11 via a suction hose. However, a plurality of discharge ports are connected to the fertilizer application pipe 10 ... via hoses 13 ...
By extending the lower part of the rear end to the rear, the capacity is increased without impairing stability, and the upper part of this extending part is a flat surface.
It is formed in a concave portion A composed of A ₁ and an inclined surface A ₂ that faces obliquely forward and upward.

A fertilizer application detector 15 ... And a switching valve 16 ... Are interposed between each discharge port of the pump 12 and the starting end of the hose 13, and the fertilizer application detector 15 is an upper surface of a concave portion of the main body 17. A diaphragm 18 that deforms in response to pressure change is overlapped with a cover 20 around its periphery, and the cover 20 is fastened to the main body 17 with a screw 19 ..., and a spring is provided on the diaphragm 18.
A piston-shaped guide 21 with an interposition of 18a is vertically movably mounted and its upper end is projected above the cover 20, and an indicator 22 is a display plate 23 facing the control unit, and a lever unit integrated with it. And a base portion of the lever 25 is rotatably pivoted on the cover 20 with a snap pin 25a, and a return spring 20a is stretched between the upper portion of the lever portion 25 and the rear portion of the cover 20. , The protrusion 26 of the lever portion 25 to the guide 2
It is pressed against the upper end of 1, the display plate 23 is bent in a V shape and the upper part is colored with a color indicating that the fertilizer flow condition is normal, for example, silver, and the lower part is clogged. The color to be displayed, for example, red, is colored, and the rear plate of the upper cover 24 is configured as a monitor panel 24a, which faces the upper side of the display plate 23 when the fertilizer flow state is normal. Windows 29 ... Are drilled.

Further, the switching valve 16 has the discharge ports 16a, 16 on the rear side and the lower side.
b has a discharge port 16a at the rear and the start end of the hose 13 is connected to each, and each discharge port 16b at the bottom is connected to a pipe 27 having only one end opened, pipe
One end of a return hose 28 that can be pulled out and inserted is connected to the opening of 27, and the other end is a sub tank of the pump 12 or a fertilizer tank.
It communicates with 11.

Further, a switching lever 30 is attached to the valve body 31 of the switching valve 16, and when the switching lever 30 is set in a horizontal posture facing rearward, the lower discharge port 16b is closed and leads to the fertilizer application tube 10. When communicating with the hose 13 and rotating upward to set, the rear discharge port 16a is closed and communicates with the return hose 28 side, so that the pressure feeding to the fertilizer tube 10 forming a pair with the switching valve 16 is stopped. A so-called streak stop can be performed, and when it is rotated downward and set, the port on the suction side is closed and the discharge ports 16a and 16b communicate with each other. If you pull it out from the water and connect it to a hose that connects to the tap, you will see a large number of hoses 13.
・ And fertilizer tube 10 ・ ・ can be washed at the same time.

32 is a bolt with a series of fertilizer detectors 15 ..., 33 is a bolt with a series of switching valves 16 ..., and 35 is a stay.

A support rod for the liquid level float 36 inserted in the fertilizer tank 11.
37 is loosely fitted into a hole 38 formed in the rear surface of the fertilizer tank 11, and an outer peripheral portion of a rubber plate 39 that is supported by tightly inserting the supporting rod 37 into
A pair of brackets 41, 41 hung from the top plate of the upper cover 24 are fastened with a plurality of bolts 40, ... Equipped at regular intervals via a ring-shaped holding plate 40a and washers 40b. A fulcrum pin 43 having synthetic resin washers 42, 42 pivotally supports a remaining amount display lever 45 so that the remaining amount display lever 45 can be tilted up and down.
The rear end of the support rod 37 is rotatably loosely fitted in the hole 46 formed in the rear side, and the rear part is inserted into the vertical long hole 47 formed in the center of the monitor panel 24a and folded laterally. It's tuned. Reference numeral 48 is a bolt for attaching the upper cover 24 to the stay.

The remaining amount display lever 45 is housed in the recess A, and the fertilizer detector 15 having the indicator 22 is mounted on the flat portion A _{1 of the} recess A. The rubber plate 39 through which the support rod 37 of the liquid surface float 36 is inserted can be attached to the inclined surface A ₂ of the recess A, and the fertilizer application detector 15 can be attached to the flat portion A ₁ of the same recess A. Can be easily assembled.

In the fertilizer transplanter described above, the switching lever 30 of the switching valve 16 is set in a horizontal posture toward the rear as shown by the solid line in FIG. 1 (a), and the planting device 5 and the clutch of the pump 12 are engaged. When the machine is run, the planting plants 8 ... scrape off the seedlings in the seedling mounting table 5b one by one and plant them in the field that has been scraped, and the pump 12 inhales the paste fertilizer in the fertilizer tank 11. The fertilizer is pumped to the fertilizer pipe 10 ... and fertilized in the mud on the side of the seedling planted from the tip.

During the fertilizer application, when the paste fertilizer is normally pumped without clogging the hose 13 ... Or the fertilizer pipe 10 ..., The pressure in the fertilizer detector 15 is the predetermined pressure set by the spring 18a. Since it is lower, the diaphragm 18 is in a contracted state as shown in FIG. 3 (b), and the display plate 23 descends so that the silver portion above the display plate 23 faces the window 29.

However, when the fertilizer application pipe 10 is clogged and the pressure in the fertilizer application detector 15 rises, the diaphragm 18 expands upward while compressing the spring 18a, as shown in FIG. 3 (a). Therefore, the display plate 23 rotates upward together with the lever portion 25,
The red part at the bottom faces the window 29, and the operator sees this and knows that the jam has occurred.

Further, when the fertilizer application is interrupted, the fertilizer detector 15 is filled with paste-like fertilizer and no air is present, so the fertilizer does not flow out, and when the fertilizer operation is started next time, no fertilizer is applied. Fertilization can be surely applied from the beginning without producing a ward.

Further, since the liquid level float 36 descends as the fertilizer in the fertilizer tank 11 becomes less, the support rod 37 has a hole in the rubber plate 39.
It turns down around 38, and the front part of the remaining amount display lever 45 is pushed up accordingly, so that the rear part descends like the liquid level of fertilizer, and this remaining amount display and the above-mentioned clogging. The display and the display are displayed on the same monitor panel 24a, and the driver can simultaneously check both of the above displays from the rear through the seedling mounting table 5b.

A conventional fuel gauge is a support rod 37 fixed to a liquid level float 36.
When the liquid level fluctuated due to the vibration or tilting of the machine body, the projection value of the fertilizer tank 11 projecting above the fertilizer tank 11 changed accordingly, but as in this embodiment, the support rod 37 is elastically held by the rubber plate 39. Therefore, the displayed value does not fluctuate minutely, and it is easy to visually recognize.

(G) Effect of the device Since the device of the present invention is configured as described above, the driver can detect the remaining amount of the fertilizer tank mounted in the center of the machine frame and the transfer detection device installed on the extension of the rear part of the fertilizer tank. Immediately after that, the display unit, which is arranged laterally, detects the detection result of the vessel, while paying attention to the running direction of the aircraft or the relationship with the forward stroke at the same time without moving the line of sight forward and backward and up and down, even while operating the operation. Appropriate fertilization can be performed without missing the display of.

Further, since the display portions of the remaining amount detector and the transfer detector are provided in the same recess A provided at the upper end of the fertilizer tank 11,
Assembly and maintenance inspection can be performed quickly and accurately.

Further, since the lower part of the fertilizer tank 11 extends to the lower part of the portion where the remaining amount detector and the transfer detector are arranged, its capacity can be increased without disturbing the balance of the machine body.

[Brief description of drawings]

The drawing shows one embodiment of the present invention, FIG. 1 (a) is a side view of a fertilizer tank equipped with a detector, and FIG.
Is a rear view of the same, FIG. 2 (a) is a plan view of a detector and a switching valve, (b) is a side view of the same, (c) is a rear view of the same, and FIG. 3 (a) is a detection showing a clogging detection state. Sectional view of the vessel,
(B) is a sectional view showing a normal state of the same as above, FIG. 4 is a side view showing the operation of the switching valve, FIG. 5 is a side view showing the operation of the display plate, FIG. 6 is an enlarged side view of the main part, FIG. 7 is a plan view of the display lever, FIG. 8 is a sectional view of the pivotal support section of the same, FIG. 9 is a side view of the fertilizer transplanter, and FIG. 10 is a plan view of the same. 10 …… fertilizer pipe, 11 …… fertilizer tank, 13 …… hose, 15…
... fertilizer detector, 16 ... switching valve, 18 ... diaphragm, 22 ... indicator, 24a ... monitor panel, 36 ... liquid level float, 39 ... rubber plate, 45 ... remaining amount display lever

Claims (1)

[Scope of utility model registration request] 1. A fertilizer in a fertilizer tank 11 mounted substantially in the center of a machine frame is transferred to a fertilizer application section through a delivery device and a transfer path,
In a fertilizer applicator with a residual quantity detector attached to the fertilizer tank 11, a transfer detector attached to the transfer path, and an operating section provided behind the fertilizer tank 11, the lower rear end of the fertilizer tank 11 is extended rearward. And the upper portion thereof is formed into a concave portion, and the residual amount detector and the transfer detector are provided side by side in the concave portion, and immediately after that, the display portions of the residual amount detector and the transfer detector are laterally arranged. Characteristic display device in fertilizer applicator.