Patent ID: 7798013

Claim:
An automatic keyboard inspection apparatus, comprising: a retractable device, further comprising: an axial extending part, capable of extending axially; and a linkage rod of a fixed length, axially connected to the axial extending part by an end thereof while having a traverse-disposed short bar attached thereto; and a pressing part, being an axial-disposed bar-like part having a tapered blunt nose attached to a bottom end thereof; wherein, the pressing part is formed with an accommodation space therein and having a hole formed by axially bored from a top end of the pressing part to the accommodation space; and the diameter of the hole is larger than the diameter of the linkage rod but smaller than the length of the transverse-disposed short bar; and the linkage rod is disposed extendedly into the accommodation space via the hole for enabling the transverse-disposed short bar to be received in the accommodation space in a manner that the pressing part is propped by the transverse-disposed short bar.