Patent ID: 9403267
Filing Date: 2016-08-02
CPC Classification: B25G,F16B,Y10T

Claim Text:
1. A telescopic pipe structure for a pole saw, comprising: an inner pipe; an outer pipe fitted to the inner pipe and adapted to move relative to the inner pipe; and an adjusting device comprising a body, a pressing unit, and an adjusting unit, wherein the body has a sleeve hole, a pressing portion, and a positioning portion positioned opposite to the pressing portion, wherein a receiving chamber arranged perpendicular, and positioned proximate, to the outer pipe is disposed at the positioning portion, wherein the outer pipe is slidably and penetratingly disposed at the sleeve hole, wherein the pressing unit is pivotally disposed at the pressing portion to press against the inner pipe and stop the inner pipe from moving relative to the outer pipe, wherein the adjusting unit is disposed at the positioning portion and comprises a driving element, a positioning element, a spring, and a pin, wherein the spring and the driving element are received in the receiving chamber consecutively, wherein the driving element is pushed by the spring to therefore undergo a reverse displacement, wherein the driving element has a through connecting slot and a sloping slot in communication with the connecting slot, wherein two ends of the sloping slot are defined as a high-level end and a low-level end, respectively, wherein the pin is disposed at the positioning element and moves between the high-level end and the low-level end of the sloping slot, wherein, when the driving element protrudes from a first position of the body, the pin is located at the high-level end and causes the positioning element to move in a direction of the sleeve hole, so as to enable the positioning of the outer pipe and the inner pipe, and wherein, when the driving element protrudes from a second position of the body, the pin is located at the low-level end and causes the positioning element to move in another direction of the sleeve hole, so as to disable the positioning of the outer pipe and the inner pipe.