JPH041889U - - Google Patents
Info
- Publication number
- JPH041889U JPH041889U JP4084090U JP4084090U JPH041889U JP H041889 U JPH041889 U JP H041889U JP 4084090 U JP4084090 U JP 4084090U JP 4084090 U JP4084090 U JP 4084090U JP H041889 U JPH041889 U JP H041889U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- hydraulic
- hydraulic cylinder
- truck crane
- upper chamber
- 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
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Vehicle Body Suspensions (AREA)
- Jib Cranes (AREA)
Description
第１図は本考案の一実施例を示すトラツククレ
ーン車の底面図、第２図は第１図のトラツククレ
ーン車の油圧系統図、第３図、第４図はそれぞれ
第１図のトラツククレーン車のクレーンを使用し
ない状態、斜め前方吊り状態をそれぞれ示す部分
正面図である。第５図は公知の全周吊りトラツク
クレーン車の底面図である。
１……油圧シリンダー、２……シヤーシフレー
ム、３……リーフスプリング、４……当接座、５
……前軸、６……油圧ポンプ、７……コントロー
ルバルブ、８，９……チエツク弁、１０……リリ
ーフ弁、１１……圧力スイツチ、１２……油タン
ク、０１，０２……アウトリガー、０３……フロ
ントジヤツキ、０４……ジブ。
Fig. 1 is a bottom view of a truck crane showing an embodiment of the present invention, Fig. 2 is a hydraulic system diagram of the truck crane shown in Fig. 1, and Figs. 3 and 4 are respectively views of the truck crane shown in Fig. 1. FIG. 3 is a partial front view showing the vehicle in a state where the crane is not used and a state in which the vehicle is suspended diagonally forward. FIG. 5 is a bottom view of a known all-around suspension truck crane vehicle. 1...Hydraulic cylinder, 2...Chassis frame, 3...Leaf spring, 4...Abutting seat, 5
... Front shaft, 6 ... Hydraulic pump, 7 ... Control valve, 8, 9 ... Check valve, 10 ... Relief valve, 11 ... Pressure switch, 12 ... Oil tank, 01, 02 ... Outrigger, 03...Front jack, 04...Jib.
Claims (1)
周吊りトラツククレーン車において、シヤーシフ
レームの前部に左右対称的に固着され伸長したと
き前軸の両端寄りの部分に当接する１対の竪軸油
圧シリンダーと、上記油圧シリンダーへの油圧供
給管に挿入されたチエツク弁の下流に挿入され上
記油圧シリンダーの上部室の油圧がクラツキング
圧に上昇したとき開いてこれを油タンクへ戻すリ
リーフ弁と、同油圧供給管に付設され上記油圧シ
リンダーの上部室の油圧が設定圧に上昇したとき
警報装置を作動する圧力スイツチとを具えたこと
を特徴とするトラツククレーン車の斜め前方吊り
安全装置。 In a full-circumference suspension truck crane equipped with outriggers and front jacks, a pair of vertical hydraulic cylinders are fixed symmetrically to the front of the chassis frame and abut against parts near both ends of the front shaft when extended. , a relief valve that is inserted downstream of a check valve inserted into the hydraulic pressure supply pipe to the hydraulic cylinder and opens when the hydraulic pressure in the upper chamber of the hydraulic cylinder rises to cracking pressure to return it to the oil tank; and the hydraulic pressure supply pipe. A safety device for diagonally forward suspension of a truck crane, comprising a pressure switch attached to a pipe and actuating an alarm device when the oil pressure in the upper chamber of the hydraulic cylinder rises to a set pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4084090U JPH041889U (en) | 1990-04-17 | 1990-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4084090U JPH041889U (en) | 1990-04-17 | 1990-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041889U true JPH041889U (en) | 1992-01-09 |
Family
ID=31550981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4084090U Pending JPH041889U (en) | 1990-04-17 | 1990-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041889U (en) |
-
1990
- 1990-04-17 JP JP4084090U patent/JPH041889U/ja active Pending
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