Tubular door lock with an adjustable device for setting the dead bolt
AssigneeTaiwan Fu Hsing Industry Co., Ltd.
InventorJui C. Lin
Life of this patent
Estimating the term…
Abstract
A tubular door lock making use of two pairs of motive teeth in a pulling plate for a two-tooth gear to selectively mesh with for an motive action. The gear is confined within a hole cut in a moving shell, which can move outside along the assembling plates and be fixed to keep a hole in it to exactly face against a hole in the assembling plates so as to enable the foot post of the door lock to penetrate through the both holes, whether this lock is adjusted in the short or in the long size.
Claims6
A tubular door lock with a cylinder having a face plate at one end thereof, a dead bolt mounted in the cylinder, and an adjustable device for setting the dead bolt comprising a pulling plate having two pairs of protrusions for meshing selectably with a two-tooth gear that is confined in a hole of a movable shell, the gear having a shaft aperture and able to move horizontally along an elliptical hole in one of two assembling plates, said one assembling plate having a fixing notch, said movable shell having a protrusion for locking in the fixing notch of said assembling plate so that said gear can be moved horizontally by the moving of said movable shell to change the distance between the face plate and the shaft aperture of said gear and still mesh with said protrusions of said pulling plate for moving the dead bolt, and two holes being provided in said movable shell for corresponding with the holes of said assembling plates when said movable shell is moved to either of its positions so as to enable a foot post of the door lock to penetrate through.
A tubular door lock with a cylinder having a face plate at one end thereof, a dead bolt mounted in the cylinder, and an adjustable device for setting the dead bolt comprising a pulling plate having two pairs of protrusions for meshing selectably with a two-tooth gear that is confined in a hole of a movable shell, the gear having a shaft aperture and able to move horizontally along an elliptical hole in one of two assembling plates, said one assembling plate having a notch, said movable shell having a protrusion for engaging the notch of said assembling plate so that said gear can be moved horizontally by the moving of said movable shell to change the distance between the face plate and the shaft aperture of said gear and still mesh with said protrusions of said pulling plate for moving the dead bolt, and two holes being provided in said movable shell for corresponding with the holes of said assembling plates when said movably shell is moved to either of its positions so as to enable a foot post of the door lock to penetrate through.
A tubular door lock with a cylinder having a face plate at one end thereof, a dead bolt mounted in the cylinder, an adjustable device for setting the dead bolt comprising a pulling plate having a forward pair of protrusions and a rearward pair of protrusions for meshing selectably with a gear with two teeth that is confined in a hole of a movable shell, the gear having a shaft aperture and able to move horizontally along an elliptical hole in one of two assembling plates, said teeth having tip ends spaced apart at a distance which is shorter than the distance between inner surfaces of respective protrusions of each pair of said protrusions so that said gear can be moved horizontally by the moving of said movable shell to change the distance between the face plate and the shaft aperture of said gear and enabling said teeth to still mesh with said protrusions of said pulling plate for moving the dead bolt when the gear is rotated, and two holes being provided in said movable shell for corresponding with the holes of said assembling plates when said movably shell is moved to either of its positions so as to enable a foot
- post of the door lock to penetrate through.
Dependencies are inferred from the claim text.