JPH02102908U

JPH02102908U -

Info

Publication number: JPH02102908U
Application number: JP1177589U
Authority: JP
Priority date: 1989-02-01
Filing date: 1989-02-01
Publication date: 1990-08-16

Description

[Brief explanation of drawings]

図面は本考案の実施例を示しており、第１図は
ローダ立置時の全体側面図、第２図は支持杆退避
時の要部側面図、第３図はブーム落下防止時の要
部側面図、第４図は支持杆の３姿勢を示す背面図
、第５図は落下防止部の他例を示す側面図、第６
図は作業具姿勢制御装置の揺動部材の側面図、第
７図は第６図の―線断面図、第８図は連結部
材の拡大断面図、第９図は制御機構の断面平面図
、第１０図は第９図の―線断面図、第１１図
は第９図の―線断面図である。１…フロントローダ、２…トラクタ、３…走行
車体、５…マスト、６…枢軸、７…ブーム、９…
バケツト、５１…支持杆、５１ａ…一端、５１ｂ
…他端、５２…抜止めピン、イ…スタンド姿勢、
ロ…退避姿勢、Ａ…スタンド保持部、Ｂ…退避保
持部、Ｃ…落下防止部。 The drawings show an embodiment of the present invention. Figure 1 is an overall side view of the loader when it is placed upright, Figure 2 is a side view of the main part when the support rod is retracted, and Figure 3 is a main part when the boom is prevented from falling. 4 is a rear view showing three positions of the support rod, 5 is a side view showing another example of the fall prevention part, and 6 is a side view.
The figure is a side view of the swinging member of the work implement posture control device, FIG. 7 is a sectional view taken along the line - - in FIG. 6, FIG. 8 is an enlarged sectional view of the connecting member, and FIG. 9 is a sectional plan view of the control mechanism. 10 is a cross-sectional view taken along the line -- in FIG. 9, and FIG. 11 is a cross-sectional view taken along the line -- in FIG. 1...Front loader, 2...Tractor, 3...Traveling vehicle body, 5...Mast, 6...Pivot, 7...Boom, 9...
Bucket, 51...Support rod, 51a...One end, 51b
...Other end, 52...Retaining pin, I...Stand position,
B... Retracted position, A... Stand holding part, B... Retracted holding part, C... Fall prevention part.

Claims

[Claims for Utility Model Registration] A mast 5 detachably fixed to the traveling vehicle body 3; a boom 7 supported by the mast 5 via a boom pivot 6 and raised and lowered by a boom cylinder 11; In a loader working machine having a work tool 9 which is rotatably supported at the tip of the boom 7 and performs scooping and dumping operations by a work tool cylinder 12, the mast 5 has a support rod 51. One end 51a is supported rotatably around a horizontal axis, and this support rod 5
The boom 7 is formed with a stand holding part A that holds the boom 1 in a stand posture A in which the other end 51b is in contact with the ground, and a retraction holding part B that holds the other end 51b in a retreat posture B in which the other end 51b is retracted upward. A loader working machine characterized in that a fall prevention part C is formed which engages with the other end 51b of the support rod 51 in order to prevent the loader from falling in the elevated state.