Patent ID: 6490809
Filing Date: 2002-12-10
Classification: G01B

Abstract:
An improved brake structure of a tape measure, which at least comprises:an enclosure of said tape measure combined with a turning wheel for wrapping a tape therein, wherein said enclosure mainly comprises an upper housing and a lower housing, a pair of corresponding slide slots being set in said upper housing and said lower housing, a pair of lodging troughs being extended from a position which is at an end portion of said sliding slots and near an outlet of said tape, a pair of position columns being set at a proper position below a lodging slot; a control part, wherein a push key is set thereon and a pair of slide ways are set at both sides, and a slide piece is extended from a front end portion, a pair of lodging blocks being respectively extended from both sides of said slide piece, an inset hole being set at a front end of said slide piece; a brake part, wherein a main part is a hollow column to enable to be slipped on and rotate about said position columns of said upper housing and said lower housing, a guide piece and a brake piece being further extended from said main part; said slide ways of both sides of said control part being combined in said sliding slots of said upper housing and lower housing, said lodging blocks of said slide piece at the front end portion of said control part being lodged at an upper edge of said lodging troughs, said inset hole being used to combining with said guide piece of brake part; when said control part is moved downward, said lodging blocks of the front end being lodged in said lodging trough of said end portion of said sliding slots to position said control part and make said guide piece of said brake part move downward such that said main part of said brake part turns in a certain angle to make said brake piece hold to a surface of said tape to achieve a braking purpose.