Patent ID: 9044837
Filing Date: 2015-06-02
Classification: B23Q,B66F,Y10T

Abstract:
1. A telescopic shaft assembly, comprising: a seat; a shaft body disposed movably in the seat, the shaft body having a convex portion and a recessed portion opposite to each other, one end of the convex portion far away from the recessed portion having a top surface, the recessed portion having two inner side wall surfaces opposite to each other and a bottom surface located between the two inner side wall surfaces, and wherein each of the two inner side wall surfaces forms an obtuse angle with the bottom surface; and a plurality of slide blocks located between the shaft body and the seat, wherein one of the plurality of slide blocks is disposed on the top surface, two of the rest of the plurality of slide blocks are disposed on the two inner side wall surfaces respectively, and each of the plurality of slide blocks is a hydrostatic slide block.