A latching device may include a latch, and a blocker configured to reduce the operational force used to move the latch to a latch disengaged position when an associated door is loaded with a force in a direction of egress. In some embodiments, the blocker may resist the force in the direction of egress by transferring the load the latch in a manner which reduces resultant friction generated by the latch when it is moved to the latch disengaged position. In some embodiments, the blocker may resist the force in the direction of egress by direction the force away from the latch.

A latch comprising: a housing having a slot for a striker; a ratchet rotationally mounted on the housing and biased for release of the striker from the slot and retaining of the striker in the slot dependent upon angular position of the ratchet with respect to the housing, the ratchet having a ratchet surface; a pawl rotationally mounted on the housing and biased towards the ratchet, the pawl having a pawl surface; and a rotatable bearing positioned between the pawl surface and the ratchet surface for rotation there between during rotation of the ratchet and the pawl, such that contact between the ratchet and the pawl is facilitated by one or more localized contact regions between an exterior surface of the bearing and adjacent respective at least one of the pawl surface or the ratchet surface; wherein the contact region is a localized contact region with respect to the exterior surface having a spheroidal shape.

A latchbolt assembly includes a solid latchbolt having at least a first surface, a second surface and a third surface and an anti-friction bolt pivotally coupled to the solid latchbolt. The anti-friction bolt includes a cross member disposed adjacent the first surface of the solid latchbolt and a pair of plates depending from the cross member to form a U-shaped cross section. The plates are disposed adjacent the second and third surfaces of the solid latchbolt.

A lever connection body includes a first lever; and a second lever rotating about a rotation center which is different from a rotation center of the first lever. A sliding long hole opened in the first lever and the second lever spaced apart with respect to the sliding long hole, are connected to each other via a rod. A rod holder including an inserting projection portion inserted into the sliding long hole of the first lever is mounted on an end portion of the rod which is a side of the first lever. A rectangular stopper is provided in a distal end portion of the inserting projection portion of the rod holder, the stopper has a short side length to be inserted into the sliding long hole and a long side portion locked to the sliding long hole to regulate withdrawn from the sliding long hole.

A latch guiding and coupling device includes a coupling seat having first and second sides. An insertion groove is defined between the first and second sides and extends from a first surface through a second surface of the coupling seat. A recessed portion is formed in the first side and rotatably receives a roller. Each of two ends of the recessed portion has a positioning groove extending to the first surface to form a notch. An axle extends through the roller and includes two ends respectively received in the positioning grooves. A locking plate is mounted to the first surface of the coupling seat. The locking plate includes an opening aligned with the insertion groove and two stopper portions aligned with the positioning grooves. Each stopper portion covers one of the notches to prevent the axle from disengaging from the positioning grooves. The roller protrudes beyond the locking plate.

A magnetic latch for fastening a closure member to a support comprising a latch assembly and a keeper assembly. The latch assembly comprises: a frame (70); a latch bolt (14) moveable between a latching position and a retracted position along a horizontal direction; and a latch bolt operating mechanism configured to move the latch bolt from its latching position to its retracted position. The latch bolt moved into its latching position by magnetic attraction. The latch bolt operating mechanism comprises an operation lever (91) and a support lever (92) both of which have a first part pivotally connected to the frame and a second part connected to the latch bolt. The latch bolt is suspended by the operation lever and the support lever and is swingable between its latching position and its retracted position.

A latchbolt assembly includes a solid latchbolt having at least a first surface, a second surface and a third surface and an anti-friction bolt pivotally coupled to the solid latchbolt. The anti-friction bolt includes a cross member disposed adjacent the first surface of the solid latchbolt and a pair of plates depending from the cross member to form a U-shaped cross section. The plates are disposed adjacent the second and third surfaces of the solid latchbolt.

A handle assembly for a door or window comprises a handle and a second element, installable on opposite sides of the door or window, and a pin element rotatable around a pin rotation axis and insertable into the handle or in the second element at variable depths. The handle assembly further comprises a friction reducing group positioned coaxially to the pin element and positionable between the handle and the door or window in the axial direction of the pin rotation axis. Clamping devices constrain the handle and/or the second element on the pin element at adjustable distances along the axial direction according to the thickness of the door or window, so that when the handle assembly is installed on the door or window, an axial clamping pressure of the handle and of the second element is maintained on the respective side of the door or window. An installation method of the handle assembly on the door or window is also provided.

A closure latch assembly having a latch mechanism is provided. The latch mechanism includes a ratchet and a pawl assembly pivotally supported for movement between a ratchet holding position whereat the pawl assembly is positioned to hold the ratchet in its striker capture position and a ratchet releasing position whereat the pawl assembly is located to permit movement of the ratchet to its striker release position. The pawl assembly has a carrier and a pawl configured for rotation relative to one another about a pawl pin and a roller carried by the carrier. The roller is disposed between the pawl and the ratchet for selective rolling movement therebetween. The roller is disposed into abutment with a closing surface of the ratchet while the pawl assembly is in the ratchet holding position and is spaced from closing surface while the pawl assembly is in the ratchet releasing position.

An exemplary deadbolt includes a pair of rollers positioned on opposing sides of an axial centerline of the deadbolt. The deadbolt may include chamfers or tapered surfaces extending from side surfaces of the deadbolt toward a face of the deadbolt. The rollers may extend beyond the face, one of the side surfaces, and/or one of the tapered surfaces. As the bolt moves from a retracted position to an extended position, one of the rollers may engage an edge of an opening in a strike plate, for example when the deadbolt is misaligned with the strike plate opening. As the rollers engage the edge, the deadbolt may be urged to a more aligned position.