Abstract:
A door closing arrangement includes a first door closer for closing a first door leaf, the first door closer being positioned on the opposite side of the first door leaf from the its hinge, and a second door closer for closing a second door leaf. The distal end of the pull arm of the first door closer moves along a guide member in a direction towards the second edge of the door frame during movement of the first door leaf from a fully open position to a partially closed position and moves along the guide member in a direction towards the first edge of the door frame during movement of the first door leaf from the partially closed position to a fully closed position. The distal end of the second pull arm move along the guide member during closing of the second door leaf at least initially in a direction towards the first edge of the door frame. A closure sequence control mechanism has a blocking condition in which it prevents movement of the distal end of the second pull arm towards the first edge of the door frame and thereby prevents closing of the second door leaf and has a releasing condition in which it permits movement of the distal end of the second pull arm towards the first edge of the door frame and thereby permits closing of the second door leaf. The closure sequence control mechanism changes from its blocking condition to its releasing position by application of a force directed from the first edge of the door frame towards the second edge of the door frame. A coupling mechanism is coupled to the distal end of the first pull arm when the first door leaf attains the partially closed position and converts movement of the distal end of the first pull arm towards the first edge of the door frame to a force directed towards the second edge of the door frame. A connection piece applies force from the coupling mechanism to the closure sequence control mechanism for changing the closure sequence control mechanism from its blocking condition to its releasing condition.
Abstract:
Drive system for moving a load along a curved path. The drive system includes a base for mounting the drive system, the base having a curved track for guiding the load along the curved path. There is a load engaging mechanism mounted on the base for movement relative to the base, the load engaging mechanism being for moving the load. The load engaging mechanism has a curved track engaging roller for engaging the curved track. A linear drive mechanism including a linearly driven member is mounted on the base. The linearly driven member includes a driving pivot. A drive link is attached to the driving pivot at a drive force receiving end of the drive link, the drive link including a driven pivot at a drive force communicating end of the drive link. The driven pivot is attached to the load engaging mechanism, whereby linear motion of the driving pivot causes motion of the load along the curved path.
Abstract:
The invention relates to a locking device and a door-drive device comprising a locking device for a door which can be secured against opening by unauthorized persons using force from the exterior. The locking device has a lever element consisting of two lever arms which pivot about a first pivoting shaft. A connecting element is hinged to the first lever arm for connecting the door and the second lever arm which has an engaging device.
Abstract:
A closure sequence control arrangement for a double door in which the double door is provided with a first door closer and a first pull arm for closing a first door leaf and with a second door closer and a second pull arm for closing a second door leaf. A guide rail guides the distal ends of the pull arms relative to the door closers. A closure sequence controller includes a connection piece for transmitting force from the distal end of the first pull arm to the closure sequence controller. The closure sequence controller prevents movement of the distal end of the second pull arm in the guide rail until the distal end of the first pull arm has exerted a pulling force on the closure sequence controller through the connection piece.
Abstract:
First and second door leaves are pivotable with respect to a door frame and each door leaf has a hinge edge at which it is hingedly attached to the door frame. Each door leaf is provided with a door closer and a pull arm for closing the door leaf. The door frame is provided with a guide rail mounted to the door frame for guiding movement of distal ends of the pull arms longitudinally of the guide member. During closing movement of the second door leaf, the distal end of the second pull arm moves along the guide rail initially in an allowing direction, away from the hinge edge of the second door leaf, and subsequently in a blocking direction, towards the hinge edge of the second door leaf. During closing movement of the second door leaf, a blocking device allows movement of the distal end of the second pull arm past the blocking device in the allowing direction and selectively prevents return movement of the distal end of the second pull arm past the blocking device in the blocking direction.
Abstract:
A garage door opener security system, for preventing the unauthorized opening of a garage door, mounted within a dwelling. The garage door opener has a track mounted to the dwelling, and a truck slidably mounted on the track which is operatively engaged with the door. A release lever extends downward from the truck to allow manual release and opening of the garage door. The security system prevents unauthorized operation of the release lever by providing a pair of security plates which extend downward from the truck on either side of the release lever. The security plates thereby prevent an unauthorized person from extending an object into the garage from outside in an attempt at operating the release lever.
Abstract:
A new and improved garage door opening and closing system comprising a lower bar pivotably connected to the upper extent of a garage door. An associated intermediate bar is coupled with respect to the lower bar. An upper bar has an upper end pivotably connected to a door actuator. A piston is mounted to the lower end of the upper bar. A cylindrical housing encompasses the piston. An apertured upper cap at the top end of the housing slidably receives the upper bar. An apertured lower cap is releasably secured to the upper end of the intermediate rod. An upper coil spring is mounted between the piston and the upper cap. A lower coil spring is located between the piston and the lower cap.
Abstract:
A safety cabinet for the storage of flammable or combustible materials that has doors and a closure mechanism designed to automatically close and latch the doors in the event of fire. The closing mechanism is fully automatic and eliminates mechanical timing features as well as provides an automatic positive method and structure of closing the doors of the cabinet to insure a complete seal and lock. Furthermore, the latching assembly is operated using a handle which may be rotated into a tucked position. In this position, the handle rests in a cavity formed within the doors of the cabinet for protectively shielding the latching assembly to prevent accidental or unauthorized opening and handle breakage.
Abstract:
A safety cabinet for the storage of flammable or combustible materials has doors designed to automatically close in a specified sequence. The door sequencing device has three components: a stop bracket mounted to one door, a cam bracket mounted to the other door and a slide bar with a roller on one end mounted to the inside surface of the top of the safety cabinet. The slide bar is operably associated with the two brackets such that it blocks the movement of the stop bracket on one door until the cam bracket of the other door engages the roller and removes the slide bar from the path of the stop bracket thereby allowing the second door to close.
Abstract:
Automatic slide door mechanism includes a slide rail secured to a slide door of a vehicle and which is extended in the fore-aft-direction of the vehicle, a slide rail guide holding the slide rail and held by an arm rotatably coupled to a main vehicle body, swing driving actuator for rotating the arm towards inside or outside of the vehicle, and slide driving actuator separate from the swing driving actuator, the slide driving actuator being held by the slide rail guide and adapted for actuating the slide door and the slide rail in the fore-and-aft direction of the vehicle. This assures smooth and prompt operation during movement of the slide door in the fore-and-aft direction of the vehicle and a sufficiently large torque during movement of the slide door towards inside or outside.