Patent ID: 8157236

Claim:
A combinational transverse strut for a two-in-one arc-shaped or linear advertisement display frame, comprising a base body ( 1 ) and a bendable overlay plate ( 2 ), both the base body and overlay plate comprising two ends and a middle portion respectively, wherein the base body ( 1 ) is provided with a positioning groove ( 1 - 1 ) on a surface corresponding to the overlay plate ( 2 ), the overlay plate ( 2 ) is provided with a positioning groove ( 2 - 1 ) on a surface corresponding to the base body ( 1 ), and the base body ( 1 ) is fixedly connected to the overlay plate ( 2 ) at their middle portions, characterized in that, two support members ( 3 ) located between the positioning groove ( 1 - 1 ) of the base body and the positioning groove ( 2 - 1 ) of the overlay plate ( 2 ) are provided at both ends of the base body ( 1 ) and the overlay plate ( 2 ), respectively, each of the two support members ( 3 ) comprising a support seat ( 3 - 1 ), a support cap ( 3 - 2 ), a crankpin ( 3 - 3 ), and a magnetic steel ( 3 - 4 ); the support cap ( 3 - 2 ) is provided on its rear portion with an oblique groove ( 3 - 2 - 5 ); the crankpin ( 3 - 3 ) is operatively connected between middle portions of the support seat ( 3 - 1 ) and the support cap ( 3 - 2 ), the magnetic steel ( 3 - 4 ) is fixed between the support seat ( 3 - 1 ) and the support cap ( 3 - 2 ), and the support cap ( 3 - 2 ) is connected to the support seat ( 3 - 1 ); the base body ( 1 ) is provided with a pair of pin shaft holes ( 1 - 3 ) on a side wall approximate to an end point at each of its ends, and the overlay plate ( 2 ) is provided with a pair of pin shaft holes ( 2 - 2 ) on a side wall at each of its ends; and the support member ( 3 ) is connected to the base body ( 1 ) by means of inserting a straight pin shaft ( 4 ) into the oblique groove ( 3 - 2 - 5 ) of the support cap and the pair of pin shaft holes ( 1 - 3 ) on the base body ( 1 ), and the support member ( 3 ) is connected to the overlay plate ( 2 ) by means of inserting the crankpin ( 3 - 3 ) into the pair of pin shaft holes ( 2 - 2 ) of the overlay plate ( 2 ).