PROBLEM TO BE SOLVED: To cope with high stress acting in crane work even if thinning a plate thickness of an upper face plate (for the weight reduction and cost reduction of a material) in an outrigger reinforcing member.SOLUTION: In an outrigger reinforcing structure of a crane truck in which an outrigger reinforcing member 3 is interposed while straddling an upper face of an outer cylinder 21 of an outrigger 2 arranged at a lower part of a vehicle body frame 1 and the vehicle body frame 1, a reinforcing plate 4 having a prescribed small area and a thick plate thickness is welded to a position which straddles a prescribed range portion on which high stress acts at crane work at an upper face plate 31 of the outrigger reinforcing member 3 and a side face part 11a of an upper face plate 11 of the vehicle body frame 1 in a state that an area of a part of the reinforcing plate 4 is superimposed on the upper face plate 31 of the outrigger reinforcing member 3 in a plane view, and a plate thickness of the entire upper face plate 31 of the outrigger reinforcing member 3 is thinned more than that at strength which copes with the high stress at the crane work, thus achieving the weight reduction and cost reduction of a material while coping with the high stress.SELECTED DRAWING: Figure 2
【課題】アウトリガ補強部材における上面板の板厚を薄くしても(材料の軽量化とコストダウンを図れる)、クレーン作業時に作用する高応力に対応し得るようにすること。【解決手段】車体フレーム1の下部に配置したアウトリガ2の外筒21の上面と車体フレーム1とに跨がってアウトリガ補強部材3を介在させたクレーン車のアウトリガ補強構造において、アウトリガ補強部材3の上面板31におけるクレーン作業時に高応力が作用する所定範囲部分と車体フレーム1の上面板11の側面部11aとに跨がる位置に、所定小面積で板厚の厚い補強板4を、該補強板4の一部の面積が平面視においてアウトリガ補強部材3の上面板31に重合する状態で溶接しているとともに、アウトリガ補強部材3の上面板31全体の板厚をクレーン作業時の高応力に対応した強度の厚さより薄くしていることにより、上記高応力に対応しつつ材料の軽量化とコストダウンを達成し得る。【選択図】 図2
OUTRIGGER REINFORCING STRUCTURE OF CRANE TRUCK
クレーン車のアウトリガ補強構造
2016-06-30
Patent
Elektronische Ressource
Japanisch
IPC: | B66C Krane , CRANES |
OUTRIGGER STORAGE STRUCTURE, OUTRIGGER DEVICE, CRANE DEVICE, AND CRANE DEVICE MOUNTING VEHICLE
Europäisches Patentamt | 2017
|Europäisches Patentamt | 2017
|