US 12,077,937 B2
Frame of construction machine
Takeshi Tsuneyoshi, Akashi (JP); and Masato Tamura, Akashi (JP)
Assigned to Caterpillar SARL, Geneva (CH)
Appl. No. 17/613,797
Filed by Caterpillar SARL, Geneva (CH)
PCT Filed May 21, 2020, PCT No. PCT/EP2020/025236
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/239256, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-097266 (JP), filed on May 24, 2019.
Prior Publication US 2022/0228344 A1, Jul. 21, 2022
Int. Cl. E02F 9/08 (2006.01); B62D 21/18 (2006.01); B62D 21/10 (2006.01)
CPC E02F 9/0816 (2013.01) [B62D 21/186 (2013.01); B62D 21/10 (2013.01); E02F 9/08 (2013.01); E02F 9/0808 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A frame of a construction machine comprising: a bottom plate, a pair of vertical plates being disposed spacedly in a width direction on a top surface of said bottom plate and extending longitudinally and vertically, and multiple support members extending toward an outside in a width direction from a breadthwise outer surface of said pair of vertical plates,
wherein at least one of said multiple support members comprises a vertical wall perpendicular to said bottom plate, a breadthwise inner end part of said vertical wall is welded on one breadthwise outer surface of said pair of vertical plates,
wherein a lower end of said pair of vertical plates is welded intermittently on a top surface of said bottom plate, and there exists a non-welded part where the lower end of said vertical plates is not welded on the top surface of said bottom plate under breadthwise inner end part of said vertical wall.