Patent ID: 7555846

Claim:
A wheeled distance measuring device comprising: a longitudinal pole including a first segment and a second segment, a coupling device including a housing having a bore formed therein for receiving and engaging with said first segment, a latch device pivotally attached to said housing and including a latch extended therefrom, a casing including a bore formed therein for receiving and engaging with said second segment, and said casing being pivotally attached to said housing with a pivot shaft to allow said first and said second segments of said longitudinal pole to be folded relative to each other, and a lock device pivotally attached to said casing with a pivot member to allow said lock device to be pivotally attached to said casing, and said lock device including a catch extended therefrom for selectively engaging with said latch of said latch device and for detachably securing said first and said second segments of said longitudinal pole together, said catch being extended from a first end portion of said lock device, and a spring member being engaged between said casing and a second end portion of said lock device for biasing said catch of said lock device to engage with said latch of said latch device.