Patent ID: 6128824
Filing Date: 2000-10-10
Classification: A01K,G01B

Abstract:
A horse measuring ruler structure comprising a vernier main body, a fixing stopper block, two resilient slide blocks, a locating ruler, a locating device, an inner ruler, an outer ruler, a Protective frame and a locking device, a level being inserted on a top face of a left section of the locating ruler, the locking device being composed of a circular box body and an elliptic cover sealing the box body, the box body having a restricting block on a upper edge thereof, the elliptic cover having a central circular hole in which a push button is disposed and outward Pushed by a spring, said ruler structure being further characterized in that:the vernier main body is comprised of a trapezoid board and two panels rightwardly extending respectively from middle sections of front and rear sides of the trapezoid board, the upper and lower sections of the right side of the trapezoid board being respectively formed with two T-shaped sockets, each middle section of the front and rear panels being respectively formed with two fixing stepped holes, a right side of the front face of the front panel being disposed with a circular dent, the center of the circular dent being formed with a large square locating hole, the right side of the back face of the rear panel being disposed with a circular dent, the center of the circular dent being formed with a large square locating hole;the fixing stopper block includes a stopper plate and a Plug block extending from the right side of the bottom face of the stopper plate;the left end section of the locating ruler is formed with a large square cavity, the cavity being formed with a small square fitting hole;the locating device is composed of a locating pin, a locating cap and a compression spring, the locating pin being formed with a central through hole, said locating pin having a circular section and a large and a small square locating block connected with the circular section, the locating cap being also formed with a central through hole, the inner side of the locating cap being disposed with a large square locating block having a central small square mating socket secured to the small square locating block of the locating pin;the inner ruler is a hollow rectangular tube body shaped as an I-beam, the lower end of front face of the inner ruler being disposed with a circular receiving chamber, an upper edge of the receiving chamber being formed with a restricting notch for receiving the restricting block of the box body;the outer ruler is a rectangular tube body, an upper end of the front face of the outer ruler being formed with a circular through hole the inner ruler being fitted into the outer ruler; andwherein, the left end of the locating ruler is fitted into the space between the right sections of the panels of the vernier main body and pivotally located by the locating device extending through the large square locating holes of the front and rear panels such that the locating pin is depressible to compress the compression spring thereof to disengage the large square locating block of the locating pin from the large square locating hole of the front panel and to disengage the large square locating block of the locating cap from the large square locating hole of the rear panel to permit rotation of the locating ruler relative to the front and rear panels, the locking device being fitted into the circular receiving chamber of lower end of the inner ruler, wherein the push button is positionable in the circular through hole of the outer ruler to prevent relative movement of the inner and outer rulers, said locking device being depressible to compress the spring thereof to separate the push button from the circular through hole of the outer ruler to permit relative movement of the inner and outer rulers, the protective frame being fitted onto upper end of the outer ruler, the resilient slide blocks being fitted into the T-shaped sockets of the trapezoid board of the vernier main body, the inner ruler being passed through the space between the front and rear panels of the vernier main body, two fixing pins being passed through the fixing stepped holes of the front and rear panels, the vernier main body being engaged on the inner ruler by means of the resilient slide blocks, the Plug block of the fixing stopper block being plugged into the upper end of the inner ruler, the stopper plate of the fixing stopper block preventing the inner ruler from separating from the vernier main body.