US 11,807,281 B2
Cab roof structure, cab and rail train
Ye Zhang, Shandong (CN); Keming Shang, Shandong (CN); Honglei Tian, Shandong (CN); Xin Jiang, Shandong (CN); and Xiao Dong, Shandong (CN)
Assigned to CRRC Qingdao Sifang Co., Ltd., Shandong (CN)
Appl. No. 17/260,502
Filed by CRRC Qingdao Sifang Co., Ltd., Shandong (CN)
PCT Filed Sep. 10, 2019, PCT No. PCT/CN2019/105039
§ 371(c)(1), (2) Date Jan. 14, 2021,
PCT Pub. No. WO2020/211269, PCT Pub. Date Oct. 22, 2020.
Claims priority of application No. 201910306942.5 (CN), filed on Apr. 17, 2019.
Prior Publication US 2021/0300443 A1, Sep. 30, 2021
Int. Cl. B61D 17/12 (2006.01); B61D 7/12 (2006.01)
CPC B61D 7/12 (2013.01) 19 Claims
OG exemplary drawing
 
1. A cab roof structure comprising:
a roof carline;
at least two aluminum honeycomb panels; and
at least one roof connecting beam disposed on the roof carline, comprising a roof connecting beam between every two aluminum honeycomb panels,
wherein each aluminum honeycomb panel of every two aluminum honeycomb panels is fixedly connected to a left or right side of the roof connecting beam;
wherein the at least two aluminum honeycomb panels comprise:
a first aluminum honeycomb panel disposed on a left side of the roof connecting beam; and
a second aluminum honeycomb panel disposed on a right side of the roof connecting beam,
wherein the roof connecting beam comprises:
a first protrusion provided on an upper surface of the roof connecting beam;
a second protrusion provided on an upper end surface of the first protrusion; and
a first shoulder configured to connect an upper panel of the first aluminum honeycomb panel and a second shoulder configured to connect an upper panel of the second aluminum honeycomb panel, the first and second shoulders respectively provided on left and right sides of the second protrusion and wherein bottom surfaces of bottom panels of the first and second aluminum honeycomb panels are disposed on the upper surface of the roof connecting beam.