Classifications

• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
  • E05D13/10—Counterbalance devices
  • E05D13/12—Counterbalance devices with springs
  • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
  • E05D13/1269—Spring safety devices
• • E—FIXED CONSTRUCTIONS
  • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
  • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
  • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
  • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
  • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
  • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
  • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
  • E05D13/003—Anti-dropping devices
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
  • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
  • E05D13/10—Counterbalance devices
  • E05D13/12—Counterbalance devices with springs
  • E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
  • E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
• • E—FIXED CONSTRUCTIONS
  • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
  • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
  • E05Y2900/00—Application of doors, windows, wings or fittings thereof
  • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
  • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

• the invention relates to a spring monitoring device for a prestressed spring of a door, a door or the like, in particular for a torsion spring provided as a weight compensation spring for a single or multi-element door leaf or a roller door curtain, for preventing the door or door leaf from slamming or falling or the like, with a blocking element rotatable about an axis of rotation in the course of the opening and closing movement of the door leaf or the like together with a torque transmission element acted upon by the unbroken spring - in particular a cable or chain pull shaft or the like torsion shaft - which is used to block this rotary movement and thereby the Movement of the door leaf or the like can be detected and blocked, preferably in a form-fitting manner, by means of a detection device which has, in particular, a toothing, a catch element which can be moved from an operating position in which it is detected by the operator Solution device is released, is movable into a catch position, in which it detects the detection device for blocking the
• the known spring monitoring device is used in a practical application mainly to break a shaft for a traction means such as e.g. a torsion spring attacking a cable to prevent the door leaf from falling.
• a traction means such as e.g. a torsion spring attacking a cable to prevent the door leaf from falling.
• significant torques can be absorbed.
• some spring monitoring devices have to be designed to withstand torques of over 800 Nm and to reliably block the cable pull shaft from rotating, which these torques can attack due to the gravity of the door.
• a ratchet wheel is provided on the shaft with ratchet teeth, into which a pawl can snap as a catch.
• the pawl In the operating position, the pawl is held against a spring bias acting in the direction of the ratchet wheel by a bolt.
• the bolt is part of a tension sensing and triggering device that monitors the tension of the torsion spring to be monitored and releases the bolt in the event of spring breakage for movement from the detection with the pawl and thus triggers it.
• the bolt is preferably connected directly to a spring seat for the torsion spring - usually in the form of a spring cone - and is pressed into the catch with the pawl by the pretension of the torsion spring.
• the spring cone can be pivoted in a small angular range about a pivot axis parallel to the axis of rotation, so that the bolt can perform a pivoting movement that differs from the circumferential direction about the axis of rotation and thus more easily from the area of influence of the pawl is movable to trigger the same.
• the voltage sensing and triggering device for example electrical, electropneumatic or pneumatic, in which the voltage sensor can be designed as a strain gauge or pressure sensor or the like instead of as a mechanical link.
• the previously known spring monitoring devices have the disadvantage that they take up a relatively large amount of space and material, especially when a large radius for the ratchet wheel or the like blocking element is desirable because of the high torques that occur, and accordingly a correspondingly more complex catch element is necessary. If access from the outside is to be excluded, a housing for enclosing the known blocking devices (catch element and blocking element) is also necessary.
• the object of the invention is to develop a spring monitoring device of the type mentioned at the outset in such a way that it takes up less space and preferably also less material and nevertheless enables blocking of high torques occurring in the event of spring breaks.
• a spring monitoring device of the type mentioned at the outset is developed in such a way that the blocking element has a wall which is essentially radially inward with respect to the axis and on which the detection device is formed, and that the catch element is arranged radially within the inward-facing wall or can be arranged, in the course of the movement into the catching position radially outward into the detection with the detection device catching section.
• the blocking element according to the invention is provided in its interior with the detection device into which the catch member engages with an outward movement in the event of a spring break. With the same detection radius it can the catch member are formed much smaller and less material than in the prior art.
• a low-mass catch member also has the advantage of lower inertia, so that faster blocking is possible.
• the blocking device formed from the blocking element and catch member is relatively well protected in the inner region of the blocking element against access or external influences, so that no separate housing needs to be provided for this purpose.
• the blocking element is designed as a ring section, as a cup-shaped hollow housing, preferably accessible from the outside, or as a drum.
• a particularly preferred embodiment of the invention is one in which the blocking element is part of a traction means drum, on which another end with the door leaf or the like, preferably on the traction means connected in the lower position in the closed position, can be wound, and is preferably formed in one piece with the same.
• the blocking element is therefore no longer a separate component, but rather can be integrated into an already existing traction roller.
• the spring monitoring device according to the invention can, for example, also be fully integrated in the interior of the traction roller, ie can be completely enclosed by it.
• the traction means drum or roller itself is designed or usable, for example, in the form of a type of ratchet ring gear as a blocking element.
• the catch member is designed mechanically, the catch section being resiliently pretensioned on a radially outward with respect to the axis of rotation, in particular spring-loaded, pawl for grasping on the radially inward wall Form the detection device protruding ratchet teeth is formed.
• the catch element is provided with a support surface which, in the operating position, is supported on a retaining element which can be moved out of the movement path of the catch element in the event of spring breakage by the tension sensing and triggering device serves and is inclined in such a way with respect to the direction of movement of the retaining element that the latter is pressed out of the movement path when released after spring break by moving the catch member into the catch position.
• a pivotally mounted pawl serving as a torque transmission element pawl is used, which is held in the operating position by a bolt used as a retaining element on the spring cone also pivotally mounted outside the shaft, so that only a transverse component of the pretensioning force of the pawl is held, as in the prior art applied to this bolt, in such a way that the pawl rests on the bolt via the support surface which is not perpendicular to the pivot pivot point. If the spring breaks and the spring cone moves with the bolt through the intended angular range around its swivel axis into the final locking position, this movement is supported by the pawl pretension.
• the catch member is designed as a lever element which can be pivoted about a lever axis offset parallel to the axis of rotation and is resiliently biased into the catch position and has a first lever arm which has the catch section and in particular forms the pawl.
• the lever element has a second lever arm which interacts with the triggering mechanism of the voltage sensing and Tripping device is used, in particular has the support surface, the available space is better usable, and usable movements can be redirected to trigger the blocking device.
• the second lever arm serves to query, for example, a spring cone movement in the event of a spring break, preferably as described in such a way that a small component of the pawl preload spring force acts on the cone bolt via an inclined plane (the support surface).
• the release mechanism for example the bolt fastened to the spring cone or another holding device or the other holding element, is not only acted upon in its or its release position but also in a retracting or rebounding manner. So that such a rebounding trigger mechanism cannot reach the second lever arm once it has been released, it is preferably designed in such a way that when the lever element moves into the catch position, it swings out of the sphere of influence of the trigger mechanism, in particular out of the movement path of the retaining element.
• the lever element is mounted in such a way that the first lever arm can be subjected to pressure in the catch position by the movement of the door leaf or the like to be blocked.
• a lever arm loaded under pressure offers further advantages in terms of material savings compared to a ratchet lever loaded under tension, since a barb element as would be necessary with a ratchet lever loaded under tension is avoided.
• the free end of the lever arm can simply be designed as an engagement area for gripping the pawls.
• the first lever arm which is designed as a pawl, has a locking lug for gripping one of the ratchet teeth, the locking lug being provided with a bevel which, when the lever element is pivoted after a spring break, has a complementary bevel the ratchet tooth slides whereby the lever element can be guided into the final catch position before a significant torque is transmitted.
• the free end of the first lever arm forming the catch section itself can act as a locking lug, or this free end can have such a locking lug, for example, in the form of a bent part.
• the design with the complementary bevels is particularly advantageous in view of the fact that the traction means drums are often made from die-cast, a material that is more prone to breakage than, for example, sheet metal. Therefore, it is advantageous if the forces that are really to be absorbed are only introduced when there is a large-area engagement between the locking nose and the corresponding ratchet tooth flank. Therefore, in the latter advantageous embodiment of the invention, the detection device first pulls the correspondingly obliquely designed locking lug radially outward to the ratchet tooth base via its oblique ratchet tooth flank, so that a large contact surface between the locking lug and ratchet tooth flank is achieved by appropriate sliding insertion.
• the wall carrying (or forming) the radially inward-facing wall does not have to be present throughout, it can be provided with openings or it can also be provided only on a partial area of the circumference of the blocking element.
• the wall also does not have to be oriented radially inwards in an exact geometric sense. For example, it can be provided with pawl areas everywhere so that it does not have a single surface piece directed perpendicular to the radial. It is important that it is essentially directed inwards or in its entirety in such a way that the detection device formed thereon is accessible from the radial inside.
• a catch section can also be provided, the rest position of which in normal operation is, for example, axially offset outside the area encompassed by the wall, but can be arranged in this area at least in the course of the triggering movement, i.e. in the course of the triggering movement into this area and moved radially outward with respect to the rotational movement axis into the detection position.
• Fig. 1 is a Prinzipdarsteliung, a cut along the line A-B-C-D-E-F of Fig. 2 shown view of a side
• Fig. 2 is a schematic diagram of the device of FIG. 1 in a
• Fig. 3 is a plan view of a in the device of FIG. 1 as
• FIG. 4 shows a front view of the lever element from FIG. 3.
• FIG. 1 shows the one lateral end region of a torsion spring door leaf weight compensation device, as is used, for example, with a roller door or a sectional ceiling door. Shown are a prestressed torsion spring 1 used to compensate for the door leaf weight, the torque of which is transmitted to a cable drum 3 via a torsion shaft 2. The weight of the door leaf (not shown) depends on a rope 4 which is held on the rope drum 3 so that it can be wound up. To support the torsion shaft 2 is a Welienhalter 5 provided. The torsion spring 1, which is connected to the torsion shaft 2 at its end (not shown), sits, as shown, with its other end facing the cable drum 3 on a cone 6.
• the cone 6 is pivotally mounted by means of a first bolt 7 about a pivot axis Ak parallel to the axis of rotation A and offset.
• a second bolt 8 is fastened to the cone 6 and guided in a curved slot 9 (see FIG. 2) in the shaft holder 5 such that the cone 6 is a small Angular range can pivot about the pivot axis Ak.
• the torsion spring 1 prestresses the cone 6 in such a way that the second bolt 8 abuts a first end 10 of the elongated hole 9, as shown in FIG. 2.
• the cable drum 3 is connected to the torsion shaft 2 for common rotation, e.g. it is flying or as in the manner explained in more detail below.
• a lever element 15 is provided as a catching element.
• the lever element 15 is pivotally mounted by means of a third pin 16 about a lever axis Ah, which is also offset and runs parallel to the axis of rotation A.
• a spring element 17 prestresses the lever element 15 into a catch position (not shown) in which it detects the detection device 12 provided on the cable drum 3 by blocking the cable drum 3, ie the lever element 15 is opposed in the pivoting direction in the illustration of FIG. 2 biased clockwise.
• the lever element 15 has - as best seen from its separate representation in FIGS. 3 and 4 - a first Lever arm 18 and a second lever arm 19 running at an angle thereto.
• the first lever arm 18 has (see FIG. 4 in connection with FIG. 1) a free end 20 which acts as a catching section and projects into the interior of the cable drum 3 with a locking lug 20.
• the end 20 is bent over so that only the bent part forming the locking lug 26 extends into the cable drum 3, but the rest of the lever element 15 is arranged axially outside the cable drum 3.
• An edge of the free end 20 (the locking lug 26) pointing in the direction opposite to the unwinding direction Ra is provided with a bevel 21 which is complementary to the ratchet tooth flank 14.
• the second lever arm 19 is designed such that in the operating position shown in the figures (in which the cable drum 3 can be freely rotated without being detected by the lever element 15), it is at the first by the torsion spring 1
• Torsion spring 1 directed axial direction.
• a support surface 24 for supporting the second lever arm 19 and thus the entire lever element 15
• Bias is formed by the spring element 17 on the second bolt 8.
• support surface 24, as shown, does not exactly point to the lever axis Ah, but rather is designed to run obliquely, so that it is supported on the bolt 8 like an inclined plane and the same with a transverse component of the
• Spring force of the spring element 17 acts against its abutment at the first end 10 of the elongated hole 9.
• the lever element 15 also has a third lever arm 25, which projects between the shaft holder 5 and the cable drum 3 for handling the lever element 15.
• a third lever arm 25 which projects between the shaft holder 5 and the cable drum 3 for handling the lever element 15.
• groove areas 27 and 28 are formed on both of these elements 2, 3, into which a closure element in the form of a stop wedge 29 or the like is driven.
• the wedge design of the closure element 29 also ensures that the elements 2, 3 are jammed in such a way that relative displacements are prevented.
• the cable drum 3 is provided with a clamping screw 30 to prevent the torsion shaft 2 from shifting.
• the shaft holder 5 is provided with a pressed-in ball bearing 31 for mounting the torsion shaft.
• the torsion spring 1 transmits its supporting force to the shaft holder 5 via the bolt 7 and the bolt 8 resting on the end 20 of the elongated hole 9.
• the cable drum 3 is biased against the unwinding direction Ra; the weight of the door leaf on the rope 4 is compensated. That the latter can be easily moved between the open and closed positions, the cable 4 being wound up or unwound accordingly by rotating the cable drum 3.
• the lever element 15 is held in the operating position by the second bolt 8 as a holding element.
• the lever element 15 and the detection device 12 comprising blocking device and a spring monitoring device formed the cone 6 in connection with the elongated hole 9, 10 and the bolts 7 and 8 having tension sensing and triggering device.
• the tension sensing and triggering device 6- 10 immediately feels a spring tension drop due to its constant contact with the torsion spring 1 and triggers the blocking device 15, 12 for blocking an unwinding movement of the cable drum 3 and a falling movement of the door leaf.
• the cone 6 If the torsion spring 1 breaks, the cone 6 is released for this purpose, it moves jerkily within the angular range predetermined by the elongated hole 9 about its pivot axis Ak. As a result, the second bolt 8 comes out of its detection with the first end 10 of the elongated hole 9 and moves in the elongated hole 9 away from this end 10. This movement is further supported by the abutment of the lever element 15 via the support surface 24 acting as an inclined plane for the bolt 8 and the prestressing of the spring element 17 until the support surface 24 comes out of contact with the bolt 8. The lever element 15 then moves, driven by the spring element 17, into its catch position.
• the second lever arm 19 swings completely out of the area of the elongated hole 9 and thus the area of influence of the release mechanism having the bolt 8 for releasing the blocking, so that even a rebounding of the release mechanism does not disturb the once triggered movement of the lever element 15.
• the bevel 21 at the free end 20 of the first lever arm 18 comes into contact with one of the ratchet tooth flanks 14 designed as a complementary bevel.
• the free end 20 of the first lever arm 18 is supported over the bevel 21 on the ratchet tooth flank and over the edge bearing the bevel 21 on the ratchet tooth base over a large area on the detection device 12, ie on the inwardly directed wall 11 of the cable drum 3, and blocks it the latter, the torque load then occurring directly being transmitted directly from the cable drum 3 and its toothing to the shaft holder 5 via the first lever arm 18 and the third bolt 16 loaded under pressure.
• the path of the flow of force in the catching situation is therefore very short.
• the force to be dissipated does not go through the torsion shaft 2.
• the short force flow path also contributes to a quick, undelayed response.
• fewer parts are loaded, so that the spring monitoring device works more reliably than previous systems.
• some things work together in order to be able to work in a particularly small, yet relatively large latch lever arm and with regard to the force to be introduced, safely and over a large area, without rebounding movements of the breaking torsion spring being able to hinder the locking engagement once triggered.
• a spring monitoring device in which a catch section (18) of a catch member (15) which is movable radially outwards in the event of the spring (1) breaking into a on a radially inwardly facing wall (11) of a blocking element (3) formed with the opening and closing movement of the door leaf or the like, blocking device (12) engages in a blocking manner.
• an already existing traction device drum (13) is used as the blocking element, in which the detection device (12) on one preferably a radially inner wall (11) is accessible from the outside.

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• Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Mechanical Engineering (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Analysing Materials By The Use Of Radiation (AREA)
• Crushing And Grinding (AREA)
• Push-Button Switches (AREA)
• Power-Operated Mechanisms For Wings (AREA)
• Springs (AREA)

Applications Claiming Priority (5)

Publications (2)

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• 1999
  • 1999-07-23 WO PCT/DE1999/002272 patent/WO2000006861A1/fr active IP Right Grant
  • 1999-07-23 AT AT99948675T patent/ATE216023T1/de not_active IP Right Cessation
  • 1999-07-23 DK DK99948675T patent/DK1102910T3/da active
  • 1999-07-23 ES ES99948675T patent/ES2172352T3/es not_active Expired - Lifetime
  • 1999-07-23 EP EP99948675A patent/EP1102910B1/fr not_active Expired - Lifetime
  • 1999-07-23 PT PT99948675T patent/PT1102910E/pt unknown
  • 1999-07-23 US US09/744,755 patent/US6655088B1/en not_active Expired - Fee Related

Non-Patent Citations (1)

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