EP0729542A1 - Spanneinrichtung für die gewichtsausgleichs-torsionsfedereinrichtung eines torblattes - Google Patents
Spanneinrichtung für die gewichtsausgleichs-torsionsfedereinrichtung eines torblattesInfo
- Publication number
- EP0729542A1 EP0729542A1 EP95900626A EP95900626A EP0729542A1 EP 0729542 A1 EP0729542 A1 EP 0729542A1 EP 95900626 A EP95900626 A EP 95900626A EP 95900626 A EP95900626 A EP 95900626A EP 0729542 A1 EP0729542 A1 EP 0729542A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- chuck
- clamping device
- clamping
- worm wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- E06B9/60—Spring drums operated only by closure members
-
- 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
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
- E05Y2201/499—Spring tensioners; Tension sensors
-
- 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
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/69—Permanence of use
- E05Y2800/692—Temporary use, e.g. removable tools
-
- 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 tensioning device for at least one torsion spring device, which is assigned to a shaft, the latter of which is connected to a door leaf - preferably a one-part or multi-part door that can be moved overhead, for example overhead link gates - and implements its movement process accompanied in a rotational movement, the torsion spring device having an end face, preferably facing the associated shaft bearing, held stationary against twisting movements and the end end thereof being connected to a chuck which is rotatable about the shaft and - after tensioning the spring by twisting the Chuck on the shaft can be locked against rotation.
- Tensioning torsion springs for the weight compensation of, in particular, sectional doors has hitherto been carried out by hand, for example by the usual design of a clamping part or chuck which is movable in relation to the shaft receiving the torsion spring device and has four radial bores distributed uniformly over the circumference, following the receiving cone. in which you can use tension levers.
- This work must be carried out on site with the spring shaft preassembled, that is to say generally at a relatively great height.
- the forces to be applied become extraordinarily high towards the end of the tensioning process, so that, taking into account the location of the fitter on a ladder, there are considerable risk of accidents and corresponding forces must be applied.
- the invention is based on the object of providing a tensioning device of the type mentioned at the outset, which allows the torsion spring device to be tensioned more safely and with less manual actuation force for the installer.
- the chuck is provided with a coaxial output member of a high-speed transmission, the drive member for a geared connection to the output member being mounted in a clamping housing which can be placed on the shaft or the chuck for the purpose of torsion spring tension and can be connected to a conventional, motorized - in particular electric motor - driven hand tool with rotary output, such as a hand drill.
- the inventive design of the clamping device enables the cone of the associated torsion spring end to be twisted onto the chuck or during the clamping process an output member of a transmission gear acting thereon, which is driven by a motor tool - for example in the manner of an electric handheld drilling machine or hand screwdriver - is driven, an actuation of only one hand requiring only the operation of this hand tool and without having to apply the torque for tensioning the spring only by manual actuation.
- the high-ratio transmission is designed to be self-locking, ie when the hand tool is decoupled from the transmission, the tensioned spring cannot move the transmission up to the drive member. This also simplifies handling for the tensioning process, or interrupting the tensioning process, either intentionally or by the tool slipping, does not lead to a return of the spring tension.
- a preferred transmission gear of this type consists of a worm gear with a worm wheel connected to the chuck or the receiving cone of the worm wheel, which is non-rotatably connected for the spring end to be twisted relative to the shaft, and a worm engaging in this as a drive member, which is rotatably held in a clamping housing for the clamping device can be connected to the hand tools at one of their two shaft ends.
- the tensioning housing is part of the tensioning device, which can only be placed on the shaft or the chuck for the tensioning process in such a way that the gear connection between the drive member and the driven member is established and ensured.
- the clamping housing is circumferentially formed at least in two parts, preferably in the form of a U-shaped main part in the case of mounting on the shaft, through the legs of which are drilled holes which receive a locking pin in the mounting state such that the in the U-shaped main shaft inserted is locked in this position such that the gear connection between the Clamping housing and the chuck, in particular between the worm as the drive member and the worm wheel as the output member, is ensured.
- the main part of the clamping housing and thus the whole of the clamping housing can be removed from the shaft or the chuck with the gear connection disconnected.
- the clamping housing For the absorption of the reaction torque on the clamping housing placed on the shaft or chuck by the clamping force contained in the spring, the clamping housing is preferably supported in a stationary manner against rotational movements with respect to the shaft, so that the reaction moment is not caused by the one to be connected to the drive member motor tools must be included.
- the tensioning housing is provided with a cantilever extending in the mounting state, which, in particular with its end facing away from the tensioning housing, engages the lintel area of the gate opening to be closed with the door leaf, in particular by means of an arrangement arranged in this cantilever end area Rolling body, preferably spherical, because the torsion spring shaft undergoes an extension in the course of tensioning in the axial direction of the shaft, which the clamping housing and thus the cantilever follows through a movement in the longitudinal direction of the shaft.
- the boom is preferably variable in length in adaptation to spatially different conditions, in particular simply by means of supports positioned differently on the tensioning housing.
- the output member of the reduction gear in particular worm gear
- the driven member in particular worm wheel
- the output member of the reduction gear is flanged to the chuck.
- the driven member in particular worm wheel
- the driven member is formed in one piece with the chuck. This latter embodiment is particularly suitable for the initial equipment of a shaft of the type in question.
- the chuck and the output member then preferably form a casting.
- this can be done particularly preferably by using the radial bores provided in the chuck for the use of clamping levers by a two-part, ie divided in the axial longitudinal center plane, Formation of a connecting body Chen, which is provided with pins projecting perpendicularly to the center plane, engaging in diametrically opposed radial bores in the assembled state, and having the output member of the transmission, in particular the worm wheel, after the two half-shells have been joined together.
- the tensioning housing together with the, in particular, approximately quarter-circle-shaped, hollow-groove toothing formation of the worm wheel in the state applied to the shaft, has a lock that secures the gear engagement between the worm and worm gear against axial relative movements, in particular by means of a projection provided on the tensioning housing engages on a shoulder or in a groove which is located in the region of the worm wheel or the unit consisting of chuck and worm wheel or of the connecting body, which is axially facing away from the quarter-round toothing of the worm wheel.
- the at least one torsion spring device mentioned here which is used to balance the weight of a door leaf moved with a vertical component, is formed in a conventional manner by a correspondingly strong torsion spring encompassing the shaft with its spirals.
- a correspondingly strong torsion spring encompassing the shaft with its spirals.
- these individual torsion springs can also be formed by bundles of parallel torsion springs, each of which is weaker in each case, which are coupled via a planetary gear.
- actuation of the drive member, in particular worm with shaft sections provided on both end faces, from both axial directions of the drive member may be desirable, which is why access from both sides is preferred for the connection of the hand tool.
- FIG. 1 shows a side view, cut with respect to the torsion spring, of a tensioning device of a first embodiment with the associated shaft section;
- FIG. 2 is rotated by 90 ° for illustration in accordance with FIG. 1
- FIG. 3 shows an axial view only of the clamping housing with the shaft cut along the line ⁇ i-IQ in FIG. 1;
- Figure 4 is a sectional view taken along the line IV-IV in Figure 1;
- FIG. 5 shows a side view similar to that according to FIG. 1 - but without a drive member - after a second embodiment
- FIG. 6 shows a side view of the second embodiment rotated by 90 ° like FIG. 2;
- FIG. 7 shows a side view of the connection body according to the second embodiment, facing away from the torsion spring, with a partial section in the area of one of the screw connections.
- the figures all show a section of a shaft 1, as is used in a known manner for weight compensation and / or for driving door leaves with a vertical movement component, that is to say for single-leaf overhead doors, lifting doors and in particular overhead link or sectional doors; basically Such a shaft also comes into consideration in the area of a winding shaft for roller shutters.
- cable drums are provided at both ends of the shaft, the ends of which, on these cables that can be wound and unwound, are fastened to the door leaf and thus create a gear connection that convert the movement of the door leaf into an accompanying rotational movement of the shaft; these facilities are generally known.
- a torsion spring 2 is shown, preferably of several distributed on the shaft 1, specifically restricted to the connection area to a chuck 5, the torsion spring 2 serving to balance the weight of the door leaf being in the area of its other , not shown, is held stationary, engages around a connecting cone 3 and is held non-rotatably at 4 relative to the cone 3.
- this type of tensioning operation is tedious and dangerous, especially since considerable forces occur in the final state of the spring tension.
- a tensioning housing 11 which can be placed on the shaft and into which a drive member of a high-speed transmission 8 is incorporated, which is connected in a geared manner to an output member connected to the chuck 5.
- this high-ratio gear 8 is designed as a self-locking, single-stage worm gear, so that the drive member of the worm 10 and the output member correspond to the worm wheel 9, which is arranged coaxially to the chuck and connected to it in a rotationally secure manner.
- a motor-driven hand tool for example an electric hand drill
- the chuck 5 is formed in one piece with the worm wheel 9 arranged on the side axially facing away from the torsion spring 2, specifically under a groove 19 formed therebetween.
- the worm wheel 9 has an approximately quarter circle Toothing which runs parallel to the axis of the shaft 1 in the area axially facing away from the chuck 5 and is formed at the other end approximately radially outwards on an annular bead 18, the circumferential groove 19 between the and the chuck 5 is trained.
- the clamping housing 11 has a main part 12 and a locking pin 13.
- the main part is U-shaped in the axial direction of the shaft 1 and houses the worm 10 in its web. In the state applied to the shaft 1, this is located in the base region between the legs 15 and the web and is taken up by overlapped the locking pin 13 which is guided for this purpose through bores 17 arranged in alignment in the free end regions of the legs.
- the shaft is enclosed with such little play that the worm 10 engages in the groove-shaped toothing of the worm wheel 9 in a technically correct manner.
- connection formations 25 for the optional connection to a hand drill from one of the two shaft ends.
- the connection designs are preferably designed in the manner of a screw head.
- locking screws 22 are provided on their end facing away from the head with cutting edges which ensure this torsional strength even under the maximum tension force of the spring.
- the locking screws are preferably located in the area of the hub of the chuck 5 between the radial bores 6.
- bores 29, 30 and 31 are made, as shown in FIG.
- These blind bores which run perpendicular to the longitudinal direction of the shaft in the mounted state of the tensioning housing 11, serve to receive a bracket 32 which serves to support the tensioning housing 11 and thus to initiate a reaction torque from the torsion spring. Since the torsion spring extends axially in the course of the splining process, the end of the rod-shaped arm 32 facing away from the sapnn housing 11 is provided with a rolling element 33, here spherical, which can be rotated about an axis 34 running perpendicular to the shaft axis.
- the cantilever lies against the lintel of the door opening during the tensioning process of the torsion spring and rolls on it.
- the blind bores are introduced into the web 14 from both directions, and at different depths, so that the boom 32 can be inserted at different depths from both sides, thereby a corresponding "change in length" of the boom, ie can set a different distance between the web 14 and the roller body 33.
- a deep blind bore 31 is axially opposite a correspondingly short blind bore 29 '. This applies accordingly to the other two holes provided.
- the locking pin 13 is provided at one end with a handpiece and secured against loss at 23 on the tensioning housing.
- the leg ends receiving the aligned bores 17 are provided with bevels 16 on the outside.
- the further exemplary embodiment according to FIGS. 5 and 7 works with the same clamping housing 11, as described in connection with the first exemplary embodiment according to FIGS. 1 to 4.
- the second exemplary embodiment is characterized by a retrofit for an existing chuck 5 with radial bores 6 in that a connecting body 35 having the worm wheel 9 is provided separately in two parts in the central axis plane.
- this connecting body 35 engages with pins 36, which extend radially inward perpendicular to the parting plane, into two diametrically opposed radial bores of the chuck 5.
- the two halves of the connecting body 35 are joined by means of two screw connections 37, which each pass through a sleeve 38, which are inserted into correspondingly aligned holes in the two parts of the connecting body 35 in the respective screw connection area.
- the alignment and spacing of the two parts is precisely determined by the adapter sleeves 38, so that the design of the worm wheel 9 is produced in a technically perfect manner.
- both the pins 36 and the fitting sleeves 38 and thus screw connections 37 are each located in axially projecting regions 39 of the connecting body 35.
- the toothing 40 of the worm wheel 9 is shaped like a hollow as in the first exemplary embodiment, which is why they are used in each case zenden tension housing 11 can match.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Springs (AREA)
- Vehicle Body Suspensions (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Elevator Door Apparatuses (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4339202 | 1993-11-16 | ||
| DE4339202 | 1993-11-16 | ||
| DE4341309A DE4341309C1 (de) | 1993-11-16 | 1993-12-03 | Spanneinrichtung für die Gewichtsausgleichs-Torsionsfeder eines Torblattes |
| DE4341309 | 1993-12-03 | ||
| PCT/DE1994/001345 WO1995014150A1 (de) | 1993-11-16 | 1994-11-15 | Spanneinrichtung für die gewichtsausgleichs-torsionsfedereinrichtung eines torblattes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0729542A1 true EP0729542A1 (de) | 1996-09-04 |
| EP0729542B1 EP0729542B1 (de) | 1998-10-21 |
Family
ID=25931287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95900626A Expired - Lifetime EP0729542B1 (de) | 1993-11-16 | 1994-11-15 | Spanneinrichtung für die gewichtsausgleichs-torsionsfedereinrichtung eines torblattes |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0729542B1 (de) |
| AT (1) | ATE172515T1 (de) |
| DK (1) | DK0729542T3 (de) |
| ES (1) | ES2122507T3 (de) |
| FI (1) | FI104912B (de) |
| NO (1) | NO309160B1 (de) |
| WO (1) | WO1995014150A1 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921761A (en) * | 1974-04-12 | 1975-11-25 | Univ Iowa State Res Found Inc | Method and means of winding torsion spring |
| US4981165A (en) * | 1989-04-11 | 1991-01-01 | Millco Products, Inc. | Spring adjustment device for overhead doors |
-
1994
- 1994-11-15 WO PCT/DE1994/001345 patent/WO1995014150A1/de not_active Ceased
- 1994-11-15 DK DK95900626T patent/DK0729542T3/da active
- 1994-11-15 EP EP95900626A patent/EP0729542B1/de not_active Expired - Lifetime
- 1994-11-15 ES ES95900626T patent/ES2122507T3/es not_active Expired - Lifetime
- 1994-11-15 AT AT95900626T patent/ATE172515T1/de not_active IP Right Cessation
-
1996
- 1996-05-15 FI FI962082A patent/FI104912B/fi active
- 1996-05-15 NO NO961985A patent/NO309160B1/no not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9514150A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2122507T3 (es) | 1998-12-16 |
| FI962082L (fi) | 1996-07-15 |
| FI962082A0 (fi) | 1996-05-15 |
| WO1995014150A1 (de) | 1995-05-26 |
| EP0729542B1 (de) | 1998-10-21 |
| FI104912B (fi) | 2000-04-28 |
| NO961985D0 (no) | 1996-05-15 |
| ATE172515T1 (de) | 1998-11-15 |
| NO309160B1 (no) | 2000-12-18 |
| NO961985L (no) | 1996-07-09 |
| DK0729542T3 (da) | 1999-06-28 |
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