| 摘要 |
PURPOSE:To check the vibration around a opening section formed on both sides of a printer arm with higher rigidity by securely inserting a reinforcing member into parts facing each other of the sides. CONSTITUTION:A printer arm 2 which supports a wire 3 at the upper part thereof while connected to an armature 1 at the bottom is made up of a pair of sides 2b and a pair of ends 2c both are made from a sheet plate and an arc section 2a. A plurality of openings 4 are symmetrically on both the sides 2b thereof for reduced weight and bleeding gas for silver soldering. A reinforcing material 5 is securely inserted into portions facing each other of both the sides 2b. Preferably, a hollow pipe 5 is securely inserted into openings 4 and 4 in both the sides 2b. |
