Abstract:
A door has a door leaf (10) which may be moved overhead between an open and closed position and which is connected by means of a traction cable system to a weight-balancing device, driving motor or another similar power source. The traction cable system has at least one cable unit (21) secured at one end to the door leaf and fixed at the other end. In order to dispense with catching means and ensure a longer service life, at least one of the cable units (21) has two cables (21', 21'') loaded approximately in parallel and combined by their associated ends each to a building element. At least one of said building elements is designed as a cable tension compensating device.
Abstract:
A door has a door leaf (10) which can be moved overhead between a closed and an open position and a weight-balancing device connected at one end to the door leaf and fixed at the other end. The weight-balancing device has one or several helical spring units space-savingly designed in such a way that the helical spring unit or units (16) are made of at least two driven helical springs loaded in parallel, of which the inner one has a helix with an outer diameter which is smaller than the inner diameter of the helix of the outer spring. The helical springs are coaxially arranged or nested one inside the other. Seen in the same longitudinal axial direction, one spring is wound clockwise and the adjacent spring is wound anti-clockwise, so that the helices of adjacent springs cross each other.
Abstract:
The present invention provides for apparatus and methods for operating a garage door. An embodiment of an operating assembly for a door includes a shaft, a graduated drum, and an energy storing member. The shaft is coupled to the door such that the shaft rotates in a first direction as the door is opened and rotates in a second direction as the door is closed. The coupling of the shaft to the door is typically accomplished by a cable. The graduated drum is coupled to the shaft and the energy storing member is coupled to the graduated drum by another cable. The energy storing member is arranged such that the energy storing member stores energy as the door is closed and releases stored energy as the door is opened to assist in the raising and lowering of the door.
Abstract:
A system (1) is disclosed for detecting and signalling in air a failure of balancing systems for closing members comprising at least one local system (3) for detecting a failure of at least one of the balancing systems, equipped with means for transmitting in air at least one failure signal (4) representing the failure of the balancing system; and at least one remote system (5) for receiving the failure signals (4) equipped with means for displaying an alarm indication of such balancing system failure. A remote signalling process which uses the system (1) is further disclosed.
Abstract:
A mechanism and method for operating a track-mounted door is disclosed. The mechanism includes a pair of side drums that are connected by first cables to the bottom of the door. The side drums are coaxially mounted on a shaft for simultaneous rotation with a pair of cable drums. The cable drums are connected to high pressure gas struts by second cables. Each second cable is carried around a shiv wheel that slides along a guide track as the second cable moves. Each shiv wheel is operatively connected to one of the gas struts. As the shiv wheel moves along the guide track toward the cable drum, the gas strut is charged. As the shiv wheel moves away from the cable drum, the gas strut is discharged. A standard electric motor and screw driven lift-arm is used to initiate the opening and closing of the door. The charged gas strut stores sufficient energy to overcome friction and gravity to assist the electric motor and lift-arm to open the door.
Abstract:
A garage door safety bracket (26) utilizes a fixed member (42) and a sliding member (44) to inhibit removal of the bracket (26) while there is tension in a cable (40) which is attached to the sliding member (44). The sliding member (44) includes three access apertures (68) and moves between tensioned and untensioned positions. Tension in the cable (40) forces the sliding member (44) into the tensioned position in which the access apertures (68) are offset from the panel fasteners (48) which attach the bracket (26) to a lower panel (30L) of a garage door (22). When the tension on the cable (40) is released, the sliding member (44) slides into the untensioned position in which the access apertures (68) are aligned with the panel fasteners (48) permitting access to the panel fasteners (48). A roller mount (46) is separately attached to the sliding member (44) by roller mount fasteners (74) which permit a lower roller (32L) to be serviced without releasing the tension on the cable (40).
Abstract:
A sectional overhead door is disclosed with a door leaf comprising several consecutive hinging panels (10, 10', 10'') which are guided in the known way by rollers (11) in horizontal tracks and in tracks (12, 12', 12") joined to them to form a bow and are provided with a balancing device (15) in the form of approximately horizontal helical tension springs. The latter are designed to be space-saving, in particular with low drop heights, underneath the horizontal track sections extending into the building, such that on each of the outer side regions (27) of the horizontal track sections (12, 14) facing away from one another one or more helical tension spring units (16) are arranged approximately parallel to one another and one below the other. At least some of the helical tension spring units (16) consist of at least two coaxial helical springs (17, 18), the turns of which are mutually opposing and intersecting.
Abstract:
An extension spring overhead door system (10) in which the spring (22) may be quickly and easily placed in tension with the door (21) in a closed position. A spring tensioning device (30, 140) is provided which eliminates the need for multiple installers to lift the full weight of the door (21) and then clamp or otherwise prop the door (21) in an open position. An extension spring containment tube (84) is also provided which surrounds the entire periphery of the spring (22) to fully contain the entire length of the extension spring (22). A second embodiment of the spring tensioning device (140) allows mounting of device (140) on either side of the door (21) while retaining easy access.
Abstract:
Данная полезная модель относится к области строительства, в частности к устройствам для открывания/закрывания раздвижных дверей, и может быть применена для раздвижных дверей офисных и производственных помещений, ими часто снабжены межкомнатные и офисные перегородки и двери, а также различные шкафы и гардеробы. Открывающий/закрывающий механизм для перемещения раздвижных дверей содержит, по меньшей мере, один направляющий профиль, в котором, по меньшей мере, две направляющие дорожки, профиль закреплен на потолке и/или в верхней части дверного проема и/или выполнен с ним/ней как одно целое, по меньшей мере, две каретки, расположенные в профиле с возможностью горизонтального перемещения по нему, таким образом, что каретки способствуют перемещению внешней и внутренней двери и соединены с ними, дверную ручку необходимую для создания точки приложения механической силы, подвижные блоки, закрепленные на внутренней двери и расположеные в верхней ее части, соединенные с неподвижными блоками, которые расположены на концах направляющего профиля, посредством тросика или веревки образуя тросо-блочную систему, связанную с полотном внешней и внутренней двери, через крепления неподвижных блоков/роликов, и крепления тросика/веревки к двери, таким образом, что при перемещении раздвижных дверей в горизонтальном положении скорость перемещения внешней двери будет больше скорости перемещения внутренней двери. Технический результат заключается в снижении шума при работе устройства, устранении ударов и деформаций.