Door lock
AssigneesChun-Peng Liu, Song-Yuan Huang
InventorHuang-Chin Shieh
Life of this patent
Estimating the term…
Abstract
A door lock comprises a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates. A driving mechanism has two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively. A driven mechanism has gears provided on the position base to be driven for rotation by the arms and a sliding block driven by the gears for reciprocation along a predetermined orientation. A locking mechanism has a button and a pressing plate. The button is pressed to make the pressing plate moving the gears away from the pawl, so that the gears will not be driven by the pawl.
Claims7
A door lock, comprising:
- a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates;
- a driving mechanism having two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively, and
- a driven mechanism having gears provided on the position base to be driven for rotation by the arms and a sliding block driven by the gears for reciprocation along a predetermined orientation;
- wherein the gears have a first gear, a second gear and a third gear;
- wherein the first gear is pivoted on the position base at between the position base and one of the plates and has two first flank portions, corresponding to one of the pawls;
- wherein the second gear is pivoted on the position base and has two second flank portions corresponding to the other one of the pawls;
- wherein the third gear is pivoted on the position base and meshed with the first gear and the second gear having a crank at a middle section thereof to move the sliding block for reciprocation.
A door lock, comprising:
- a housing having two plates to be mounted on opposite sides of a door respectively and a position base at between the plates;
- a driving mechanism having two handles pivoted on the plates respectively for swing, two pawls provided on the handles respectively and having ends thereof extended inwards at between the plates and two arms received in the housing and pivoted thereon to be driven by the pawls respectively;
- a driven mechanism having gears provided on the position base to be driven for rotation by the arms and a sliding block is driven by the gears for reciprocation along a predetermined orientation, and
- a locking mechanism having a button provided on the position base for reciprocation between a first position and a second position and a pressing plate having a middle section pivoted on the position base and having a top end corresponding to the button and a bottom end corresponding to the gears, wherein while the button is moved to the first position, the gears are in a condition of adapted to be driven by a pawl for moving the sliding block, and wherein when the button is moved to the second position, the pressing plate moves the gears away from the pawl, so that the gears will not be driven by the pawl.
Dependencies are inferred from the claim text.