JPS61132390U - - Google Patents
Info
- Publication number
- JPS61132390U JPS61132390U JP1653585U JP1653585U JPS61132390U JP S61132390 U JPS61132390 U JP S61132390U JP 1653585 U JP1653585 U JP 1653585U JP 1653585 U JP1653585 U JP 1653585U JP S61132390 U JPS61132390 U JP S61132390U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- spring lock
- chassis
- wheel bearing
- control means
- 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
- 230000003139 buffering effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案実施例に係るスプリングロツク
装置を備えた移動式クレーンの要部側面図、第２
図は第１図の―縦断面図、第３図は第１図に
示したスプリングロツク装置の油圧及び制御回路
図、第４図は従来構造の一般的なスプリングロツ
ク装置を備えた移動式クレーンの概念図である。
１……シヤーシ、２……後輪懸架装置、３……
後輪、４……車輪用軸受、５……スプリング、７
……クレーン装置、１１……油圧シリンダ、１７
……ストツパー面、１８……当接部材、４１，４
２……ブーム位置検出スイツチ、４３……スプリ
ングロツクスイツチ、５１……縮小側油路、５２
……伸長側油路、５３……パイロツト油路。
Fig. 1 is a side view of main parts of a mobile crane equipped with a spring lock device according to an embodiment of the present invention;
The figure is a vertical sectional view of Figure 1, Figure 3 is a hydraulic and control circuit diagram of the spring lock device shown in Figure 1, and Figure 4 is a mobile crane equipped with a conventional spring lock device. It is a conceptual diagram. 1... Chassis, 2... Rear wheel suspension, 3...
Rear wheel, 4...Wheel bearing, 5...Spring, 7
... Crane device, 11 ... Hydraulic cylinder, 17
... Stopper surface, 18 ... Contact member, 41, 4
2...Boom position detection switch, 43...Spring lock switch, 51...Reduction side oil path, 52
...Extension side oil passage, 53...Pilot oil passage.
Claims (1)
置される車輪用軸受４との間にスプリング５を介
在せしめた車両Ｚにブーム式クレーン装置７を搭
載してなる移動式クレーンにおいて、上記車輪用
軸受４又は上記スプリング５と上記シヤーシ１と
の間に配置された油圧シリンダ１１で構成され上
記油圧シリンダ１１の縮小状態においては上記シ
ヤーシ１と上記スプリング５又は上記車輪用軸受
４とを該スプリング５の変位方向において相互に
衝突係合させて該スプリング５の緩衝作用を無効
ならしめる如く作用するスプリングロツク手段Ｐ
と、当該スプリングロツク手段Ｐを制御するスプ
リングロツク制御手段Ｒと、前記クレーン装置７
のブームの延出方向が車両前方又は車両後方の方
向である場合にこれを検出作動するブーム方向検
出手段Ｑを備え、前記スプリングロツク制御手段
Ｒによる前記スプリングロツク手段Ｐの制御は、
前記ブーム方向検出手段Ｑの作動時にのみ出来る
ように構成したことを特徴とする移動式クレーン
のスプリングロツク装置。 In a mobile crane in which a boom type crane device 7 is mounted on a vehicle Z in which a spring 5 is interposed between a chassis 1 and a wheel bearing 4 disposed in a direction perpendicular to the chassis 1, the above-mentioned wheel bearing 4 or a hydraulic cylinder 11 disposed between the spring 5 and the chassis 1, and when the hydraulic cylinder 11 is in the contracted state, the chassis 1 and the spring 5 or the wheel bearing 4 are connected to each other. Spring lock means P that act to nullify the buffering effect of the spring 5 by colliding with each other in the displacement direction;
, a spring lock control means R for controlling the spring lock means P, and the crane device 7.
The spring lock means P is controlled by the spring lock control means R, and the spring lock means P is controlled by the spring lock control means R.
A spring locking device for a mobile crane, characterized in that it is configured to be able to lock only when the boom direction detecting means Q is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985016535U JPH0635708Y2 (en) | 1985-02-07 | 1985-02-07 | Spring lock device for mobile crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985016535U JPH0635708Y2 (en) | 1985-02-07 | 1985-02-07 | Spring lock device for mobile crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132390U true JPS61132390U (en) | 1986-08-18 |
| JPH0635708Y2 JPH0635708Y2 (en) | 1994-09-21 |
Family
ID=30503395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985016535U Expired - Lifetime JPH0635708Y2 (en) | 1985-02-07 | 1985-02-07 | Spring lock device for mobile crane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635708Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48104021U (en) * | 1972-03-08 | 1973-12-05 | ||
| JPS515857U (en) * | 1974-06-29 | 1976-01-16 |
-
1985
- 1985-02-07 JP JP1985016535U patent/JPH0635708Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48104021U (en) * | 1972-03-08 | 1973-12-05 | ||
| JPS515857U (en) * | 1974-06-29 | 1976-01-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635708Y2 (en) | 1994-09-21 |
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