JPH03102258U - - Google Patents
Info
- Publication number
- JPH03102258U JPH03102258U JP1093190U JP1093190U JPH03102258U JP H03102258 U JPH03102258 U JP H03102258U JP 1093190 U JP1093190 U JP 1093190U JP 1093190 U JP1093190 U JP 1093190U JP H03102258 U JPH03102258 U JP H03102258U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- detection device
- load detection
- valve
- drug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims 3
- 239000007921 spray Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 230000004304 visual acuity Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Fertilizing (AREA)
- Catching Or Destruction (AREA)
- Nozzles (AREA)
Description
第１図は本考案の実施例における荷重検出装置
を示す要部構成説明図、第２図は本考案の前提で
ある改良考案の実施例を示す要部拡大縦断説明図
、第３図ａ，ｂは各々第２図に示す受部材および
圧力管を示す拡大斜視平面図ならびに蓋部材を示
す拡大斜視底面図、第４図は第２図および第３図
ａに示す圧力管および圧力センサを示す要部拡大
縦断面図、第５図は第４図におけるダイヤフラム
に貼着するピエゾ抵抗の配置例を示す電気回路図
、第６図は単位時間当たりの薬剤散布量を演算処
理かつ表示する場合の例を示すブロツク図、第７
図は第６図に示すパルスゼネレータにより発信さ
れるパルス波形を示す図、第８図は従来から使用
されている背負動力薬剤散布機の例を示す要部説
明図である。
１……フアンケース、４……薬剤タンク、６…
…荷重検出装置、９……圧力管、１１，１１ａ，
１１ｂ……圧力センサ。
Fig. 1 is an explanatory view of the main part configuration showing a load detection device in an embodiment of the present invention, Fig. 2 is an enlarged longitudinal sectional view of main parts showing an embodiment of the improved idea which is the premise of the present invention, Fig. 3a, b is an enlarged perspective plan view showing the receiving member and pressure pipe shown in FIG. 2, and an enlarged perspective bottom view showing the lid member, and FIG. 4 shows the pressure pipe and pressure sensor shown in FIGS. 2 and 3 a. Figure 5 is an electrical circuit diagram showing an example of the arrangement of piezoresistors attached to the diaphragm in Figure 4, and Figure 6 is an enlarged vertical cross-sectional view of the main parts. Block diagram showing an example, No. 7
This figure is a diagram showing a pulse waveform transmitted by the pulse generator shown in FIG. 6, and FIG. 8 is an explanatory diagram of the main parts of an example of a conventional backpack-powered chemical sprayer. 1...fan case, 4...medicine tank, 6...
...Load detection device, 9...Pressure pipe, 11, 11a,
11b...Pressure sensor.
Claims (1)
アンケースの上方に荷重検出装置を介して薬剤を
収容する薬剤タンクを設け、 前記荷重検出装置を、上方に開口する環状溝内
に、可撓性材料からなると共に流体を密封してな
る圧力管を収容し、この圧力管に前記薬剤タンク
の重量を印加可能に配設し、圧力管の一方の端部
に分解能大なる圧力センサを、他方の端部にバル
ブを介して分解能小なる圧力センサを設けかつ演
算コントロール部を介してバルブを開閉自在に形
成して構成し、 前記何れか一方の選択された圧力センサの出力
信号を単位時間当たり薬剤散布量として表示する
ように構成したことを特徴とする薬剤散布量表示
装置。[Claims for Utility Model Registration] A drug tank for storing a drug via a load detection device is provided above a fan case that accommodates a fan driven via a power source, and the load detection device is opened upward. A pressure tube made of a flexible material and fluid-tight is housed in the annular groove, and the pressure tube is arranged so as to be able to apply the weight of the drug tank, and a resolving power tube is attached to one end of the pressure tube. A large pressure sensor is provided with a pressure sensor with a small resolution at the other end via a valve, and the valve is formed to be able to be opened and closed via a calculation control unit, and one of the pressure sensors selected from the above is configured. 1. A chemical spray amount display device, characterized in that the output signal is displayed as a chemical spray amount per unit time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1093190U JPH03102258U (en) | 1990-02-06 | 1990-02-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1093190U JPH03102258U (en) | 1990-02-06 | 1990-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03102258U true JPH03102258U (en) | 1991-10-24 |
Family
ID=31514480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1093190U Pending JPH03102258U (en) | 1990-02-06 | 1990-02-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03102258U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420764A (en) * | 1977-07-15 | 1979-02-16 | Nepuchiyuun Kk | Weight sensor |
| JPS5810024B2 (en) * | 1978-08-22 | 1983-02-23 | 日本電信電話株式会社 | Information service provision method using telephone lines |
-
1990
- 1990-02-06 JP JP1093190U patent/JPH03102258U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5420764A (en) * | 1977-07-15 | 1979-02-16 | Nepuchiyuun Kk | Weight sensor |
| JPS5810024B2 (en) * | 1978-08-22 | 1983-02-23 | 日本電信電話株式会社 | Information service provision method using telephone lines |