Patent ID: 11891222
Assignee: SHENZHEN YUTO PACKAGING TECHNOLOGY CO., LTD
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 1:
2. The flat plate member according to claim 1, wherein the flat plate member has at least one of the following features:
the plurality of V-shaped grooves have the same size and are arranged at equal intervals; and
a calculation formula of the included angle of the V-shaped grooves is as follows:

θv=(180−θ1)/n+k, 

wherein θv is the included angle of the V-shaped grooves; θ1 is the bending angle of the connection region; n is the number of V-shaped grooves; and k is a corrected angle value determined according to the material of the connection region with a value range of 0°-7°.