초록 ▼

A battery powered chalk line comprising a housing having a top and bottom face and side walls forming a chamber therein. A drive shaft is secured within the side walls for rotational movement and extends across the width of the chamber. A spindle is mounted on the shaft and is selectively couplable

A battery powered chalk line comprising a housing having a top and bottom face and side walls forming a chamber therein. A drive shaft is secured within the side walls for rotational movement and extends across the width of the chamber. A spindle is mounted on the shaft and is selectively couplable for rotation therewith. A chalk line is mounted on the spindle for being dispensed and retrieved with the rotation of the shaft. The chalk line extends through an aperture in the front end of the housing with a hook secured to the exterior end of the line. A cavity in the chamber adjacent to its front end in proximity to the aperture for coating the line with chalk powder as the line passes therethrough. A driven bevel gear forms with the spindle for rotation therewith. A motor with an output shaft with drive bevel gear secures thereto for rotation to rotate the spindle to reel in the line. Batteries within the chamber couple the motor with a switch to activate and inactivate the motor. A handle is mounted to one end of the drive shaft exterior of the housing. The handle is movable to a first position locked with respect to the housing to allow rotation of the spindle through the motor independent of the drive shaft for the automatically reeling in the line and is movable to an operative position to couple the drive shaft with the spindle for manually reeling in the line.

대표청구항 ▼

A new and improved battery powered chalk line system comprising, in combination: a housing formed of a rigid material having a top face, a bottom face and side walls as well as a front end and a rear end forming a chamber therein; a drive shaft secured within the side walls for rotational movement a

A new and improved battery powered chalk line system comprising, in combination: a housing formed of a rigid material having a top face, a bottom face and side walls as well as a front end and a rear end forming a chamber therein; a drive shaft secured within the side walls for rotational movement and extending across the width of the chamber; a spindle mounted on the shaft and selectively couplable for rotation therewith; a chalk line mounted on the spindle for being dispensed and retrieved with the rotation of the spindle, the chalk line extending through an aperture in the front end of the housing with a hook secured to the end of the line exterior of the housing, the hook being sized to preclude its movement into the housing; a cavity in the chamber adjacent to the front end in proximity to the aperture for coating the line with chalk powder as the line is moved therethrough; a plug extending through a wall in the chamber in operative communication with the cavity for the filling of supplemental chalk after use; a driven bevel gear formed with the spindle for rotation therewith; a motor within the housing with an output shaft with a drive bevel gear secured thereto in meshing engagement with the driven bevel gear for rotation to rotate the driven bevel gear and the spindle to reel in the line; batteries located within the chamber coupled to the motor with a switch coupled therebetween to activate and inactivate the motor at the discretion of the user; a handle mounted to one end of the drive shaft exterior of the housing, the handle being movable to a first position locked with respect to the housing to allow rotation of the spindle through the motor independent of the drive shaft for the automatic reeling in the line, the handle being movable to an operative position to couple the drive shaft with the spindle for manual reeling in the line; a bubble cartridge functioning as a level mounted to the top face of the housing, with the top face and bottom face being planar and parallel, to determine flatness of an adjacent surface; and a scribe element having a pointed end and a threaded end with a washer secured intermediate the extent of the threaded end and an associated recipient surface in the rear end of the housing for receiving the threads of the scribe element with the point extending either internally or externally.