Abstract:
The invention concerns a tensioning device (7) for at least one torsion spring (2) fitted round a shaft (1) which is operatively linked to a door leaf with which it moves, executing a rotary motion as it moves. One end of the torsion spring (2) is fixed to a tensioning ring which can be rotated about the shaft (1) and, following tensioning of the spring by rotation of the tensioning ring (5), can be locked to the shaft (1) so that it can no longer rotate. The spring (2) can be tensioned manually, without the need for any great force and without danger for the fitter, by virtue of the fact that the tensioning ring (5) is fitted coaxially to the power-output element (9) of a high-ratio gear (8) whose power-input element (10) is operatively connected to the power-output element (9), and hence to the spring, by mounting the power-input element (10) in a housing (11) fitted to the shaft (1) or to the tensioning ring (5), the power-input element (10) being designed so that it can be connected to an ordinary hand-held rotary power tool.
Abstract:
A coupling device (1) for transmitting a torque between two shaft parts (3, 15) consists of interconnectable holders, for example a hub (2) and a flange (13), in which the shaft parts (3, 15) are held against rotation. Both holders may move with respect to each other, for example by means of teeth (8, 23), at least within a small angle (30).
Abstract:
The present invention concerns an insulation device for gate members or panels (8, 9) of single wall sectional gates (1). On the inner side of each panel is arranged an insulation element (2) which by means of a fastening device is affixed to the panel. The insulation device consists of panel-shaped poystyrene units (2), which are arranged on the inner side of the single walled sectional gate. The fastening device consists of strips (6, 7) which are mounted and run horizontally along the upper and lower edges of the panel. The strips clamp the insulation elements (2) tightly to the panel. With this insulation device a sectional gate (1) is both thermally and acoustically insulated. Any sectional gate (1) which has not yet been insulated can easily be subsequently insulated with the present insulating device.
Abstract:
A door has a door leaf (1) which is movable parallel to the door opening plane over at least part of its displacement path. The door has at least one handle (2) for transmitting opening and closing forces which is placed with both its end areas (4, 5) connected to a holding bar (3) on a large side (6) of the door leaf. In order to reduce as much as possible the space required, the holding bar (3) extends almost to the large surface (6) of the door leaf, so that the holding bar (3) cannot be held from behind and the handle (2) is correspondingly flat. The cross-section (7) of the holding bar (3) is approximately T-shaped.
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:
Described is a door unit with a door which can be raised overhead, such as a jointed pull-up door, and with vertical frame spars fixed round the edge of the doorway and with a guide-rail system in whose rails the door is fitted so that it can be displaced along the rails and with ropes which hold the door, the ropes passing over pulleys and being attached to a fixed shaft. In order to prevent unauthorized opening of the door, the door has a latch assembly which is attached to at least one side of the door and which acts on the rope on this side of the door, the latch assembly having a latch which engages, when the door is raised, with a catch in the vicinity of at least one of the spars if this rope becomes slack.
Abstract:
The invention relates to a seal for fitting in the frame region of a door or gate, especially between a frame (2) and a sectional door, consisting of an essentially U-shaped securing component (11) to be fitted to the frame (2) and a one-piece sealing lip (12) bearing on the door or gate, especially on the individual panels of the sectional gate. To obtain a seal, especially for sectional gates or the like which is easy to fit while permitting both secure insertion in the securing component of the frame (2) and a good seal for the door or gate wing, according to the invention the securing component (11) and the sealing lip (12) consist of plastic of different hardness, in which the sealing lip (12) consists of a softer plastic than that of the securing component (11) and the securing component (11) consists of two substantially parallel strip-like sections (13, 14), both of which are arranged on both sides of a substantially plate-like component of the frame (2) and at least one section (13) of which has engagement projections (16) on its surface facing the plate-like component of the frame (2) arranged at an angle of less than 90 DEG to the surface of the section (13) and consisting of a softer plastic than the securing component (11).
Abstract:
A private door consists of several superimposed individual elements (3) enclosed in a frame. The individual elements (3) have an outer side (4), preferably provided with decorations or the like, and an inner side that faces the inside of a building, preferably a garage. In order to create a private door (2) the appearance of which coincides with that of a door leaf in such a way that the individual elements (3) of the door leaf and the door, in particular the beads, are horizontally aligned, so that when the door and the private door (2) are closed they present a uniform appearance, the private door (2) being simple and thus economic to produce, the frame consists of substantially U-shaped profiled strips (11) that are secured at least to both vertical side edges of the individual elements (3). The U-shaped profiled strips (11) have two substantially parallel legs (12, 14) and a crossbar (15) that is substantially perpendicular to the legs (12, 14). The leg (14) that lies on the outer side (4) of the individual elements (3) is shorter than the leg (12) that lies on the inner side (14) of the individual elements (3).
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.