A replacement door hinge that facilitates the repair of a damaged door slab is provided. The replacement hinge includes a jamb side that is essentially the same as a conventional hinge to allow traditional mounting into the recess provided in the jamb for hinges. The slab side of the hinge is formed by a pair of opposing hinge leaves that are received on opposing sides of the door slab and include inwardly facing spikes and at least one or more countersunk screw holes to allow fastening therethrough to use screws in combination with the spikes to firmly engage the door slab. The leaves include a ratcheting retention system that engage at the edge of the door slab to allow installation onto door slabs having varying thicknesses while holding the front a back leaves together to form one unit that wraps and reinforces the door slab.

A supporting member includes: a rotatable spindle supported in a first housing; a cylindrical first guide fixed in a second housing, and guiding a relative movement of the spindle in an axial direction; a second guide fixed in the first housing, having an inner diameter larger than a first guide's outer diameter, and relatively movable in the direction to the first guide; and a nut being a stepped shaft-like member including an insertion portion inserted into the first guide, a protruding portion protruded from the first guide, and a narrow portion provided therebetween. The first guide includes a caulking portion to the nut at an opening end. The caulking portion includes a portion extending to intersect in the direction along a step between the insertion portion and the narrow portion, and another portion parallel to the direction along an outer circumferential surface of the narrow portion.

A spindle drive for a closure element of a motor vehicle, wherein a drive unit and a spindle/spindle nut transmission with the spindle/spindle nut transmission comprising a spindle and a spindle nut drivingly connected downstream of the drive unit and having a geometrical axis running in the axial direction for generating linear drive motions between a drive connection to the spindle and a drive connection to the nut. A tubular casing part may be provided that extends along the spindle axis and forms a receptacle for at least one of a plurality of components of the spindle drive axially mounted on the spindle drive connection and arranged in a row in the axial direction. When the spindle drive is mounted, the at least one component is interlockingly inset into the tubular casing part relative to the circumferential direction.

A cylinder-piston unit with load-dependent damping includes a piston longitudinally displaceable in a cylinder. The piston has a first piston channel and a second piston channel, which each connect a compensation space on one side of the piston to a displacement space side on an opposite side of the piston. On the displacement space side a throttle channel connects one first piston channel to the piston lateral surface. On its displacement space side the piston has a piston journal, which carries a resiliently deformable piston disc. The piston disc is displaceable and covers the throttle channel at least partially. The displacement space side has at least one relief portion deviating from a piston end face plane. The relief portion is delimited on a number of sides by a plurality of boundary lines running concentrically with respect to the central axis. Each of these boundary lines can be differentiated continuously.

A cam type door closer includes a housing, a first piston set mounted in one side of the housing, a second piston set mounted in the other side of the housing, which includes a second piston movably mounted in a shaft hole of a first piston of the first piston set, a gap compensation device mounted in the second piston, a second spring having one end thereof stopped against the second piston and a security and sealing cap mounted in the housing to stop the other end of the second spring, and a drive shaft assembly rotatably mounted in a longitudinal passage of housing, which includes a shaft and an eccentric cam mounted on the shaft with one side thereof stopped against a roller of the first piston set and an opposite side thereof stopped against the second piston.

A door operating system for moving a door about a vertical pivot axis between a closed position and an open position. The door operating system includes a driver including a free-ended output shaft and linkage for operably connecting to the output shaft of the driver with door. An adjustable and selectively operable coupling is disposed between the free-end of the output shaft of the driver and the linkage. The adjustable coupling has a pair of coaxially spaced and adjustable interfaces. A first adjustable interface is defined between the free-end of the output shaft and the coupling while a second adjustable interface is defined between the coupling and the linkage whereby allowing for a high resolution, angular adjustment of the position of the door.

A cam type door closer includes a housing, a first piston set mounted in one side of the housing, a second piston set mounted in the other side of the housing, which includes a second piston movably mounted in a shaft hole of a first piston of the first piston set, a gap compensation device mounted in the second piston, a second spring having one end thereof stopped against the second piston and a security and sealing cap mounted in the housing to stop the other end of the second spring, and a drive shaft assembly rotatably mounted in a longitudinal passage of housing, which includes a shaft and an eccentric cam mounted on the shaft with one side thereof stopped against a roller of the first piston set and an opposite side thereof stopped against the second piston.

A hold-open latch structure for opposite sliding doors for a vehicle includes a roller swing arm which rotates about a rotating shaft formed in a roller at the time of opening or closing the door, and moves the door toward the inside and outside of the vehicle and in a longitudinal direction of the vehicle. A locking unit enables the door to be opened or closed and maintains an opened state of the door. The locking unit further includes a catch pivotably mounted on the rotating shaft and coupled to the roller swing arm so as to rotate together with the roller swing arm at the time of opening or closing the door. A lever is mounted so that one side of the lever is in contact with the catch.

A hinged system includes a preassembled hinge module for pivotally coupling a first component to a second component. The preassembled hinge module includes a shaft, a torque element frictionally engaging the shaft, and a housing. The housing includes a cover, a side wall, and a rear wall that define an interior space enclosed within the housing. The interior space receives the torque element inside the housing. The cover defines a first aperture, and the rear wall defines a second aperture, the first aperture and the second aperture aligned with a pivot axis of the shaft. The shaft extends through at least the first aperture, the interior space, and the second aperture. The shaft is separate from, and configured to be mounted to, the first component. The housing is separate from, and configured to be mounted to, the second component.

A folding shutter system is provided including a first leaf to be hingedly connected to a building structure, the first leaf being hingedly connected to a second leaf; a driving hinge mechanism having a tubular body longitudinally arranged between the two leaves, the two leaves being rotatably displaceable relative to each other about a longitudinal axis of the tubular body, defining at least a folded position and an expanded position of the leaves; the leaves having a cross-sectional outline having a beveled edge, the beveled edges being arranged to define a cavity for housing at least partially the cross-sectional outline of the tubular body.