JPS6365724U - - Google Patents
Info
- Publication number
- JPS6365724U JPS6365724U JP15699186U JP15699186U JPS6365724U JP S6365724 U JPS6365724 U JP S6365724U JP 15699186 U JP15699186 U JP 15699186U JP 15699186 U JP15699186 U JP 15699186U JP S6365724 U JPS6365724 U JP S6365724U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- fall prevention
- working machine
- prevention device
- passage
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Harvester Elements (AREA)
- Component Parts Of Construction Machinery (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Description
第１図は本考案の作業機の落下防止装置の一実
施例を示す油圧系統図、第２図は本考案の作業機
の落下防止装置の他の実施例を示す油圧系統図、
第３図は第２図の切換弁の詳細を示す縦断面図、
第４図は第３図の―線に沿う横断面図、第５
図は第３図の切換弁を示す側面図、第６図は第２
図の切換弁のリリース状態を示す縦断面図、第７
図は第２図の切換弁の遠隔装置を示す説明図、第
８図は従来の除雪車を示す側面図である。
１３……作業機、２１……油圧シリンダ、２５
……油圧戻り配管、２９……ロツク通路、３１…
…リリース通路、３３，３７……切換弁、３５…
…逆止弁。
FIG. 1 is a hydraulic system diagram showing one embodiment of the fall prevention device for a working machine according to the present invention, and FIG. 2 is a hydraulic system diagram showing another embodiment of the fall prevention device for a working machine according to the present invention.
FIG. 3 is a vertical sectional view showing details of the switching valve in FIG. 2;
Figure 4 is a cross-sectional view taken along the - line of Figure 3;
The figure is a side view showing the switching valve in Figure 3, and Figure 6 is a side view showing the switching valve in Figure 3.
Vertical sectional view showing the released state of the switching valve in Figure 7.
The figure is an explanatory view showing a remote device for the switching valve shown in Fig. 2, and Fig. 8 is a side view showing a conventional snowplow. 13... Work equipment, 21... Hydraulic cylinder, 25
...Hydraulic return piping, 29...Lock passage, 31...
...Release passage, 33, 37...Switching valve, 35...
…non-return valve.
Claims (1)
する装置において、前記油圧シリンダに接続され
る油圧戻り配管に、ロツク通路とリリース通路と
を切り換え可能とされる切換弁を介挿したことを
特徴とする作業機の落下防止装置。 (2) 切換弁のロツク通路には、逆止弁が配置さ
れていることを特徴とする実用新案登録請求の範
囲第１項記載の作業機の落下防止装置。 (3) 切換弁のリリース通路はリストリクタ通路
から成ることを特徴とする実用新案登録請求の範
囲第１項記載の作業機の落下防止装置。 (4) 切換弁は、遠隔操作により切り換えられる
ことを特徴とする実用新案登録請求の範囲第１項
または第２項記載の作業機の落下防止装置。[Claims for Utility Model Registration] (1) In a device having a working machine that is raised and lowered by a hydraulic cylinder, a switching valve that can switch between a lock passage and a release passage is provided in a hydraulic return pipe connected to the hydraulic cylinder. A fall prevention device for a work machine, characterized by having a. (2) The fall prevention device for a working machine as set forth in claim 1 of the utility model registration, characterized in that a check valve is disposed in the lock passage of the switching valve. (3) The fall prevention device for a working machine according to claim 1, wherein the release passage of the switching valve is comprised of a restrictor passage. (4) The fall prevention device for a working machine according to claim 1 or 2, wherein the switching valve is switched by remote control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15699186U JPH052660Y2 (en) | 1986-10-14 | 1986-10-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15699186U JPH052660Y2 (en) | 1986-10-14 | 1986-10-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6365724U true JPS6365724U (en) | 1988-04-30 |
| JPH052660Y2 JPH052660Y2 (en) | 1993-01-22 |
Family
ID=31079125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15699186U Expired - Lifetime JPH052660Y2 (en) | 1986-10-14 | 1986-10-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH052660Y2 (en) |
-
1986
- 1986-10-14 JP JP15699186U patent/JPH052660Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052660Y2 (en) | 1993-01-22 |