Patent application number | Description | Published |
20110210566 | LATCH DIRECTION CHANGE STRUCTURE OF LOCK - A latch direction change structure of lock includes a fixed member and a movable member each having front and rear vertical walls that form through holes and a horizontal connection wall connected between the front and rear vertical walls. The fixed member forms symmetrically arranged slots in a circumference of the through hole of the rear vertical wall thereof. A bar is set through the through hole of the fixed member, receives a spring to fit thereon, and further extends through the through hole of the movable member to attach to a latch. When the latch is frontward pulled with respect to a lock case, the movable member is movable along the fixed member to allow the latch to separate from the lock case for selective rotation of 180 degrees. The slots defined in the rear vertical wall of the fixed member provides a function of properly positioning the latch. | 09-01-2011 |
20120139266 | TOP-AND-BOTTOM LATCH STRUCTURE FOR LOCK - A top-and-bottom latch structure for a lock mainly includes a lock formed by a casing, and a lock tongue, a lock core, a handle spindle, and other components disposed in the casing. The handle spindle is provided with a first and a second protruding rod disposed at different angles, and is respectively provided with a first and a second braking piece above and under the handle spindle, so that the two braking pieces are respectively clamped by the protruding rods. The top-and-bottom latch structure for a lock further includes: two fixing members, respectively connected to the braking pieces; and tact switches, connected to a door panel by the fixing members via connecting rods. Therefore, when the door is closed, the tact switches once touching the door frame are embedded into the door frame and the fixing members move downwards to rotate the handle spindle and lock the lock tongue. When the handle spindle is pressed down, the lock tongue is drawn back, and at the same time drives the fixing members to move upwards to make the lock tongue be disengaged from the door frame to unlock, and thus the lock has the effect of the top-and-bottom latch, thereby improving the safety of the lock. | 06-07-2012 |
20120139267 | CUSHION STRUCTURE OF LOCK - A cushion structure of lock includes a knob axle, a constraining member, a push bar, and a fixing member. The knob axle forms at one end thereof a pin, which is received in a slot defined in a casing of a lock, and also forms at an opposite end thereof an engagement section, which is positioned in engagement with the push bar. The constraining member is coupled to the push bar and has a surface forming an opening through which a positioning bar fixed to the casing is received. Springs are respectively arranged at a bottom of the constraining member and between the push bar and the fixing member. When the knob is operated to retract the latch bolt, the resiliency of the springs helps driving the constraining member and the knob axle so as to make the rotation of the knob easy and effortless. | 06-07-2012 |
20120299315 | Structure for Electrical Lock - A structure for electrical locks comprises two rotational members, a latching assembly, and a controlling means. The two rotational members are respectively secured to two handles of a door. The latching assembly includes a cartridge, a sliding element, and a dividing rod. The dividing rod is fitted in the cartridge to define two lateral zones respectively corresponding to two recesses of the rotational members. The sliding member is slidably fitted in one of the lateral zones of the cartridge. The controlling means includes a pushing assembly and a solenoid. When the solenoid is de-energized, the pushing assembly can be moved forward to lock a respective handle. When the solenoid is energized, the pushing assembly can be moved back to free the respective handle. The structure can be easily applied in a door where one handle can be freely operated while the other handle can be electro-selectively operated. | 11-29-2012 |
20130069290 | SPRING DEVICE FOR DOOR HANDLE - The spring device contains an upper plate, a lower plate, and a base sandwiched between the upper and lower plates. The base has a major opening and a side opening for accommodating a first elastic element and a second elastic element, respectively. The first elastic element has its two ends fixed to two positioning posts on the lower plate. A rotational seat also positioned in the major opening of the base has an arm fixed to a central part of the first elastic element. The upper and lower plates are then riveted together to house the other components inside to form the spring device. After the spring device is configured with a door handle, the door handle can be turned clockwise or counterclockwise to open/close a door and the door handle is then automatically restored to its original position after turning. | 03-21-2013 |
20130214465 | SPRING BOX FOR DOOR HANDLE - The spring box contains a base piece, a front plate, a back plate, a rotational piece, and a torsion spring. The base piece and the front and back plates have aligned through holes. A radial gap is configured on the rim of the base piece. The rotational piece has a curved sliding element along a section of the circumference. The sliding element has a groove, a weight block configured at one end of the sliding element, and a notch at the other end. The rotation piece is placed in the through hole of the base piece. The two ends of the torsion spring are embedded in the gap and the notch. The rotational and base pieces are sandwiched between the front and back plates. Then, by the weight of the weight block and the resilience of the torsion spring, a door handle is restored to its default position after being turned. | 08-22-2013 |
20130328324 | LOCKING DEVICE - The locking device contains a latch element and an elastic element. The latch element has a middle bulge and a first bulge and a second bulge to the lateral sides of the middle bulge. The contour of the three bulges is curved. The latch element has a downward extended shaft and two positioning pins vertically extended from the two major faces of the latch element. The elastic element is sleeved over the shaft. The locking device has sliding slots on its casing's front and back faces for the accommodation of the positioning pins, respectively. The latch element is positioned beneath an axle of the locking device's handle. The axle has a notch so that, when the handle is turned to open a door, the middle bulge of the latch element would be embedded into the notch so that the door remains open to avoid its mistakenly closing. | 12-12-2013 |
20140042757 | ANTI-INTRUSION LOCK - An anti-intrusion lock includes a sliding element at a handle shaft, a stop element under the handle shaft, wherein the stop element is suitable for moving upward or downward, a clamp button and a sliding lever connected to the clamp button, wherein the clamp button is led to be exposed and protruded from a side of the lock. When the lock is locked, the clamp button is pressed down to drive the sliding lever to push the stop element upward such that the stop element is stopped at the handle shaft. Thereby, when a thief turns the handle shaft, only the sliding element is driven to move along a sliding groove set at the lock such that the lock pretends to open and the thief misunderstands the lock has been broken and gives up intruding. | 02-13-2014 |