To provide a cabin structure of a construction machine which can achieve at low costs both of enhancement of the strength rigidity of a cabin frame which receives a lateral force at the rollover of a vehicle and enhancement of design performance.SOLUTION: In a hollow panel structure in which each of a left side part 3 and a right side part 4 of a cabin frame 2 is constituted of a cabin-side inner panel 5 and a cabin-side outer panel 6 that are welded to each other. Each of the cabin-side inner panel 5 and the cabin-side outer panel 6 has a center pillar parts 11 which is bridged across a floor from a roof in a vertical direction, front-side opening flanges 13 formed respectively at front-side openings 12 including the center pillar parts 11 are continuously welded to each other by seam welding X, and rear-side opening flanges 15 formed respectively at rear-side openings 14 including the center pillar parts 11 are continuously welded to each other by seam welding Y.SELECTED DRAWING: Figure 3
【課題】車両横転時に横力を受けるキャビンフレームの強度剛性の向上と意匠性の向上とを低コストで両立できる建設機械のキャビン構造を提供する。【解決手段】キャビンフレーム2の左側部3および右側部4が、夫々、キャビンサイドインナーパネル5とキャビンサイドアウターパネル6とを溶接してなる中空パネル構造であり、キャビンサイドインナーパネル5およびキャビンサイドアウターパネル6が、 夫々、上下方向にルーフからフロアまで架け渡されたセンターピラー部11を有し、センターピラー部11を含む前側開口12に形成した前側開口フランジ13同士がシーム溶接Xによって連続的に溶接され、センターピラー部11を含む後側開口14に形成した後側開口フランジ15同士がシーム溶接Yによって連続的に溶接されている。【選択図】図3
CABIN STRUCTURE OF CONSTRUCTION MACHINE
建設機械のキャビン構造
2023-10-16
Patent
Electronic Resource
Japanese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |