JPS6183695U - - Google Patents
Info
- Publication number
- JPS6183695U JPS6183695U JP16794184U JP16794184U JPS6183695U JP S6183695 U JPS6183695 U JP S6183695U JP 16794184 U JP16794184 U JP 16794184U JP 16794184 U JP16794184 U JP 16794184U JP S6183695 U JPS6183695 U JP S6183695U
- Authority
- JP
- Japan
- Prior art keywords
- jib
- boom
- locking device
- tip
- tube
- 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Jib Cranes (AREA)
Description
第１図は本考案一実施例の縦断側面図、第２図
はそのジブ伸長時における要部の縦断側面図、第
３図はジブ先端部の斜視図、第４図はフツク取付
部の詳細図、第５図、第６図、第７図は夫々第２
図のＸ−Ｘ断面図、Ｙ−Ｙ断面図、Ｚ−Ｚ断面図
である。
１…基端ブーム筒、２…中間ブーム筒、３…先
端ブーム筒、４…ブーム伸縮シリンダ、１１…ジ
ブ、１７…ストツパ、１８…係止具、２０…フツ
ク、２３…操作レバー、２４…索、２５…ブラケ
ツト、２６…圧縮ばね。
Fig. 1 is a longitudinal side view of an embodiment of the present invention, Fig. 2 is a longitudinal side view of the main parts of the jib when it is extended, Fig. 3 is a perspective view of the tip of the jib, and Fig. 4 is a detail of the hook attachment part. Figures 5, 6, and 7 are respectively
They are an XX cross-sectional view, a Y-Y cross-sectional view, and a Z-Z cross-sectional view of the figure. DESCRIPTION OF SYMBOLS 1... Proximal boom tube, 2... Intermediate boom tube, 3... Tip boom tube, 4... Boom telescopic cylinder, 11... Jib, 17... Stopper, 18... Locking tool, 20... Hook, 23... Operating lever, 24... cable, 25...bracket, 26...compression spring.
Claims (1)
ジブを伸縮自在に挿入して、該ジブを伸長位置に
錠止め可能な装置を該先端ブーム筒とジブの間に
設けた車載クレーンにおいて、収縮した伸縮ブー
ムに対するジブの収縮時に該ジブの基端が当接す
るように、該伸縮ブームの先端或いは中間のブー
ム筒の基端部に取付けたストツパと、該ストツパ
取付側ブーム筒の基端部内に伸縮ブーム及びジブ
の伸縮を妨げないよう取付けた係止具と、ジブの
基端に枢架され且つ該ジブの収縮運動時に該係止
具を乗越えてこれに係合するよう常時ばね賦勢さ
れるフツクとよりなる仮錠装置を、収縮時の伸縮
ブームに対しジブを収縮位置に拘束するように設
けて、該フツクをジブの先端部に取付けた操作レ
バーに該仮錠装置の解放可能に連動連結したこと
を特徴とする収縮ブームへのジブ拘束装置。 In an on-vehicle crane, a rod-shaped jib is telescopically inserted into the tip boom tube of a telescoping boom that can be tilted up and down, and a device capable of locking the jib in the extended position is provided between the tip boom tube and the jib. A stopper attached to the tip of the telescopic boom or the base end of the intermediate boom tube, and a stopper installed in the base end of the boom tube on the side to which the stopper is attached, so that the base end of the jib comes into contact with the telescopic boom when the jib is retracted. A locking device is mounted so as not to impede the telescopic boom and the jib from extending and retracting, and the locking device is pivoted at the proximal end of the jib and is constantly biased by a spring so as to overcome and engage the locking device during retraction movement of the jib. A temporary locking device consisting of a hook is provided to restrain the jib in the retracted position with respect to the telescopic boom when retracted, and the temporary locking device can be released by using the operating lever attached to the tip of the jib. A jib restraint device for a retractable boom characterized by interlocking connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16794184U JPH0130474Y2 (en) | 1984-11-07 | 1984-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16794184U JPH0130474Y2 (en) | 1984-11-07 | 1984-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6183695U true JPS6183695U (en) | 1986-06-02 |
| JPH0130474Y2 JPH0130474Y2 (en) | 1989-09-18 |
Family
ID=30725725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16794184U Expired JPH0130474Y2 (en) | 1984-11-07 | 1984-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0130474Y2 (en) |
-
1984
- 1984-11-07 JP JP16794184U patent/JPH0130474Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0130474Y2 (en) | 1989-09-18 |
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