JPS62183695U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例にかかるトラツククレ
ーンの全体側面図、第２図は同クレーンからブー
ムを取外した状態の第１図相当図、第３図は第１
図状態の一部拡大図、第４図は第３図―線、
第５図は第１図―線、第６図は同―線に
それぞれ沿う拡大断面図である。 １…下部走行体、１ａ…キヤリアフレーム、２
…上部旋回体、２ａ…旋回フレーム、２ｂ，２ｂ
…ブームフツト取付部、２１…同取付部のブラケ
ツト、２２…同押え金具、２３…同切欠部、３…
ブーム、３ａ…ブームフツト、３４…ブームの起
伏シリンダ取付用ブラケツト、４…ブームフツト
ピン、４ａ，４ａ…同ピン両側部分、５…ブーム
起伏シリンダ、５ａ…同シリンダポイント、７…
起伏シリンダ支持装置。 Figure 1 is an overall side view of a truck crane according to an embodiment of the present invention, Figure 2 is a view equivalent to Figure 1 with the boom removed from the crane, and Figure 3 is a
A partially enlarged view of the figure state, Figure 4 is Figure 3 - line,
FIG. 5 is an enlarged sectional view taken along the line in FIG. 1, and FIG. 6 is an enlarged sectional view taken along the same line in FIG. 1... Lower running body, 1a... Carrier frame, 2
...Upper rotating body, 2a...Swivel frame, 2b, 2b
...boom foot attachment part, 21...bracket of the same attachment part, 22...the same presser metal fitting, 23...the same notch, 3...
Boom, 3a... Boom foot, 34... Boom hoisting cylinder mounting bracket, 4... Boom foot pin, 4a, 4a... Both sides of the same pin, 5... Boom hoisting cylinder, 5a... Same cylinder point, 7...
Lifting cylinder support device.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 下部走行体のキヤリアフレームに上部旋回体が
搭載され、この上部旋回体の旋回フレームに左右
両側ブームフツト取付部が設けられ、ブームフツ
トがこの両側ブームフツト取付部間にブームフツ
トピンによつて取付けられ、かつブームを起伏さ
せるブーム起伏シリンダのシリンダポイントがブ
ームに、シリンダフツトが上記旋回フレームにそ
れぞれ取付けられる油圧クレーンにおいて、上記
両側ブームフツト取付部は、上記ブームフツトピ
ンがピン径方向に着脱しうる切欠部を備えたブラ
ケツトと、ブームフツトピンをこの切欠部に押え
込むようにブラケツトに着脱可能に取付けられる
押え金具とによつて構成され、かつ上記下部走行
体のキヤリアフレーム上面における上記ブーム起
伏シリンダの下方位置において、ブーム起伏シリ
ンダを、シリンダポイントがブームから取外され
た状態でシリンダフツトを支点として上下回動可
能に支持する起伏シリンダ支持装置を具備してな
ることを特徴とする油圧クレーン。 An upper revolving body is mounted on the carrier frame of the lower traveling body, the revolving frame of the upper revolving body is provided with boom foot attachment portions on both left and right sides, and the boom foot is attached between the boom foot attachment portions on both sides by a boom foot pin, and In a hydraulic crane in which a cylinder point of a boom hoisting cylinder for hoisting a boom is attached to the boom and a cylinder foot is attached to the swing frame, the boom foot attachment portions on both sides have a notch through which the boom foot pin can be attached and detached in the pin radial direction. and a presser metal fitting that is removably attached to the bracket so as to press the boom foot pin into the notch, and the lower position of the boom hoisting cylinder on the upper surface of the carrier frame of the lower traveling body. A hydraulic crane characterized in that it is equipped with a hoisting cylinder support device that supports the boom hoisting cylinder so that it can move up and down using a cylinder foot as a fulcrum in a state where the cylinder point is removed from the boom.