JPH02143259U - - Google Patents
Info
- Publication number
- JPH02143259U JPH02143259U JP5148189U JP5148189U JPH02143259U JP H02143259 U JPH02143259 U JP H02143259U JP 5148189 U JP5148189 U JP 5148189U JP 5148189 U JP5148189 U JP 5148189U JP H02143259 U JPH02143259 U JP H02143259U
- Authority
- JP
- Japan
- Prior art keywords
- case
- ventilation hole
- cylindrical part
- inner bottom
- portion forms
- 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
- 230000004888 barrier function Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Displays For Variable Information Using Movable Means (AREA)
Description
第１図乃至第４図は本考案の第１実施例を示し
、第１図は全体縦断面図、第２図は平面図、第３
図は横断面図、第４図は一部を切欠いた要部の斜
視図、第５図は本考案の第２実施例を示す断面図
、第６図は本考案の他の実施例を示す一部を切欠
いた斜視図、第７図は従来例を示す断面図である
。
１１……ケース、２６……枠体、２６Ａ……下
端壁面（下端部）、２８……帰零操作シヤフト、
３４……通気孔、３７……筒状部、３９……防塵
用障壁部、４０……受部。
1 to 4 show a first embodiment of the present invention, in which FIG. 1 is an overall longitudinal sectional view, FIG. 2 is a plan view, and FIG.
The figure is a cross-sectional view, Figure 4 is a partially cutaway perspective view of the main part, Figure 5 is a sectional view showing a second embodiment of the present invention, and Figure 6 is a diagram showing another embodiment of the present invention. FIG. 7 is a partially cutaway perspective view and a sectional view showing a conventional example. 11... Case, 26... Frame body, 26A... Lower end wall surface (lower end part), 28... Zero return operation shaft,
34...Vent hole, 37...Cylindrical part, 39...Dustproof barrier part, 40...Receiving part.
Claims (1)
の内底部に前記通気孔に対応して防塵用障壁を設
け、前記ケース内に枠体に設けられた帰零操作シ
ヤフトを有するリセツトカウンタを設けたものに
おいて、前記ケースの内底部に前記通気孔と連通
する筒状部を突出形成するとともにこの筒状部の
先端部に前記枠体の下端部を対応させてリセツト
カウンタを設けることにより、前記枠体の下端部
により防塵用障壁を形成し、かつ前記筒状部によ
りリセツト操作時の受部を形成したことを特徴と
する計器の通気装置。 A ventilation hole is provided at the bottom of the case, a dustproof barrier is provided at the inner bottom of the case corresponding to the ventilation hole, and a reset counter having a zero return operation shaft provided in the frame is provided inside the case. By forming a protruding cylindrical part communicating with the ventilation hole on the inner bottom of the case and providing a reset counter with the lower end of the frame corresponding to the tip of the cylindrical part, 1. A ventilation device for an instrument, characterized in that the lower end portion forms a dustproof barrier, and the cylindrical portion forms a receiving portion for a reset operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5148189U JPH02143259U (en) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5148189U JPH02143259U (en) | 1989-04-28 | 1989-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02143259U true JPH02143259U (en) | 1990-12-05 |
Family
ID=31570967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5148189U Pending JPH02143259U (en) | 1989-04-28 | 1989-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02143259U (en) |
-
1989
- 1989-04-28 JP JP5148189U patent/JPH02143259U/ja active Pending