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EP2050912A2 - Elément de rail et entraînement de portail - Google Patents

Elément de rail et entraînement de portail Download PDF

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Publication number
EP2050912A2
EP2050912A2 EP08016837A EP08016837A EP2050912A2 EP 2050912 A2 EP2050912 A2 EP 2050912A2 EP 08016837 A EP08016837 A EP 08016837A EP 08016837 A EP08016837 A EP 08016837A EP 2050912 A2 EP2050912 A2 EP 2050912A2
Authority
EP
European Patent Office
Prior art keywords
rail
drive
deflection
drive means
strands
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.)
Withdrawn
Application number
EP08016837A
Other languages
German (de)
English (en)
Inventor
Michael Hörmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marantec Antriebs und Steuerungstechnik GmbH and Co KG
Original Assignee
Marantec Antriebs und Steuerungstechnik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marantec Antriebs und Steuerungstechnik GmbH and Co KG filed Critical Marantec Antriebs und Steuerungstechnik GmbH and Co KG
Publication of EP2050912A2 publication Critical patent/EP2050912A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
    • E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • E05F15/643—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
    • 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
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/684—Rails; Tracks
    • 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
    • E05Y2800/20—Combinations of elements
    • E05Y2800/205—Combinations of elements forming a unit
    • 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
    • E05Y2800/20—Combinations of elements
    • E05Y2800/21—Combinations of elements of identical elements, e.g. of identical compression springs
    • 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
    • E05Y2800/20—Combinations of elements
    • E05Y2800/244—Combinations of elements arranged in serial relationship
    • 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
    • E05Y2800/696—Permanence of use during transport or storage
    • 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
    • E05Y2800/74—Specific positions
    • E05Y2800/742—Specific positions abnormal
    • 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 present invention relates to a rail element for a door drive, in particular a garage door, with a rail and a drive means, in particular a chain or a toothed belt, wherein at a deflection end of the rail element, a guide roller and at a drive end of the rail element, a drive wheel are provided, via which the Drive means is guided circumferentially, so that the drive means extends in two opposing strands within the rail.
  • the rail of the rail element is arranged for this purpose between the deflecting end of the rail element and the drive end of the rail element.
  • the present invention relates to a door drive with such a rail element.
  • Such rail elements are usually used to open a gate, in particular a garage door, through the door drive and close.
  • a carriage is provided, which is displaceable in the usually C-shaped rail and connected to one of the two parallel strands of the drive means is such that the carriage is moved during a movement of the drive means along the rail.
  • a driver On the carriage is usually further arranged a driver, which is in communication with the gate and so the door opens and closes.
  • a drive motor is connected, which moves the drive wheel, wherein by a rotation of the drive wheel, the drive means in the rail is moved circumferentially, so that the two parallel strands of the drive means in the rail move in opposite directions.
  • Such a rail element for a door drive, in which a toothed belt is used as drive means, is for example out DE 780 17 016 U1 known.
  • the two strands of the drive means run in the rail parallel to an imaginary connecting line between the axis of rotation of drive wheel and pulley, with a distance to the imaginary connecting line, which corresponds to the deflection of the drive means to drive wheel or pulley.
  • Drive means such.
  • the width of the rail is determined by the minimum radius of the drive means, since the distance between the two strands within the rail corresponds to the diameter of the drive wheel or pulley.
  • the drive wheel regardless of the minimum radius of the drive means can not be made arbitrarily small in order to ensure a reliable power transmission from the drive wheel to the drive means.
  • Object of the present invention is to enable a narrower profile of the rail.
  • a rail element for a door drive, in particular a garage door, in this case has a rail and a drive means, in particular a chain or a toothed belt, wherein at a deflection end of the rail element, a guide roller and at a drive end of the rail element, a drive wheel are provided, via which the Drive means is guided circumferentially, so that the drive means extends in two opposing strands within the rail.
  • such a rail element is now provided that one of the strands of the drive means is guided by the drive wheel via a deflecting element in the rail, so that the distance between the two opposing strands of the drive means within the rail is smaller than the diameter of the drive wheel.
  • the rear side of the drive means touches the deflecting element in a region whose distance from the imaginary connecting line between the axis of rotation of the drive wheel and deflection roller is smaller than the radius of rotation of the rear side of the deflecting means about the drive wheel.
  • a very narrow rail can be used, since the two parallel strands of the drive means extending within the rail no longer spaced apart as in the prior art must have, which is determined by the radius of rotation about the drive wheel, but are guided by the deflection closer to each other.
  • the narrow rail ensures compact drives and packaging for easy transport and trouble-free installation.
  • the compact design allows the drive system, consisting of the rail element and the drive motor, to be pre-assembled and used as a component for various door drives.
  • the other strand of the drive means without a deflecting element extends directly from the drive wheel into the rail.
  • the one strand within the rail extends along a straight line which is a distance from the axis of rotation of the drive wheel, which is less than the radius of rotation of the drive means to the drive wheel, so that between the end of the rail and the drive wheel by the deflection must be deflected while the other strand runs on a straight line which tangentially meets the drive wheel and whose distance from the axis of rotation of the drive wheel thus corresponds exactly to the radius of rotation of the drive means.
  • a separating element between the two counter-rotating strands is provided in an area adjoining the deflecting element. Since the two strands are guided closer together in this area by the deflecting element, without the separating element would result here an increased risk of mutual contact, and a resulting entanglement of the two strands of the drive means.
  • the separating element which z. B. can be formed by a partition between the load strand and the slack side, the two strands closer to each other, however, can not touch.
  • the teeth of a toothed belt used as a drive means interlock with each other. It is sufficient if the separating element is provided only in a certain range following the deflecting element, since within the rail, the two strands are parallel and thus less likely to catch.
  • the drive wheel, the deflecting element and optionally the separating element are arranged in a common housing.
  • the housing advantageously also has a receptacle for receiving a rail end.
  • the rail end can be advantageously inserted into the receptacle or attached to the receptacle to easily attach the housing to the rail. This allows the rail element easily mount by connecting the rail with the assembly of drive wheel and deflector and optionally separating element.
  • the deflection side is constructed in analogy to the drive side.
  • one of the strands of the drive means is guided by the deflection roller over a deflection-side deflection in the rail, so that the distance between the two opposing strands of the drive means within the rail is smaller than the diameter of the guide roller. If the minimum radius of the drive means is greater than half the desired distance of the two strands of the drive means within the rail, such an arrangement is necessary in order not to fall below this minimum radius on the deflection side.
  • Deflection pulley and drive wheel can, for example, have the same, given by the minimum radius of the drive means radius. But it is also possible that pulley and drive wheel have different Radii. By the deflection then the two strands are tapered on the drive side and on the deflection side to the same distance from each other.
  • the other strand of the drive means without a deflecting element is guided directly from the deflection roller in the rail on the deflection side.
  • the drive side there is again a considerable reduction in the friction losses, since only one strand is deflected while the other strand runs directly onto the deflection roller.
  • a deflection-side separating element between the two opposing strands is further provided in an adjoining the deflection-side deflection element area. This, in turn, also prevents the two strands from becoming caught in the area in which they are guided closer to one another.
  • the deflection roller, the deflection-side deflecting element and optionally the deflection-side separating element are arranged in a common housing. Again, this results in a simple construction and easy installation, and here again advantageously a receptacle for the rail is provided.
  • the deflection roller for tensioning the drive means is adjustable, in particular via an eccentric. This makes it possible, after assembly by adjusting the pulley to increase the distance between the drive wheel and pulley and so to tension the drive means.
  • guide pulley and deflection-side deflection element thereby form a structural unit which is displaceable relative to the housing to which the rail is fastened.
  • the rail element according to the invention has drive-side connecting elements for connection to a drive motor and deflection-side fastening elements for mounting the rail element.
  • Drive side so the drive motor z. B. are attached to the housing, in which the drive wheel is located, which is then driven by the drive motor.
  • the rail of the rail element according to the invention has a plurality of rail segments which can be continuously mounted in the longitudinal direction.
  • the pack size of the rail element can be reduced, wherein the individual rail segments are then connected to each other in place by connecting elements and form a continuous rail.
  • the present invention comprises a preassembled assembly of a rail element as described above and a drive motor.
  • a drive system can be used by the compact design of the rail element as a component for various door drives.
  • the present invention further comprises a door drive with a rail element, as described above, in particular a garage door drive.
  • a door drive has the same advantages as have already been described with respect to the rail element.
  • FIGS. 1 and 2 the rail element according to the invention is shown in a transport position in which the individual rail segments of the rail 1 are not yet connected to each other, so that the drive side 4 connected to a first rail segment, a middle rail segment and the deflecting side 3 connected to a third rail segment are folded next to each other ,
  • the rail segments of the rail 1 of the invention Rail element thereby have a C-shaped profile.
  • On the drive side 4 is then fastened via connecting elements 34, a drive unit of a motor 10 and a transmission 11 from below, as shown in FIG FIG. 3 is shown.
  • the rail element according to the invention is usually horizontal way above the gate on the ceiling z.
  • the rail 1 then usually runs parallel to the horizontal guide rails, in which the door leaf or the door leaf elements are guided.
  • the drive wheel is rotated by a drive motor 10, whereby the drive means 2 carries out a circumferential movement within the rail, so that the two strands of the drive means 2 running parallel within the rail 1 are moved in opposite directions. With one of the two strands while a carriage is connected, which is thereby moved in the rail. The carriage is in turn connected via a driver with the door leaf, so that the door is opened by a movement of the drive wheel in one direction and the door is closed by a movement in the other direction.
  • drive side 4 is now based on the FIGS. 4 to 7 shown in more detail.
  • the corresponding executed deflection 3 is then based on the FIGS. 8 to 13 described in more detail.
  • drive side and deflection side are designed so that the distance between the two strands within the rail can be smaller than the diameter of the drive wheel or the deflection roller, which are determined by the minimum bending radius of the toothed belt used as a drive means, which allows the narrow profile of the rail 1.
  • FIG. 4 now shows the drive side of the embodiment of the rail element according to the invention in an exploded view obliquely from below, FIG. 5 from diagonally above.
  • the drive means 2 in the form of a toothed belt runs around the drive wheel 6, which is rotatably mounted in a housing of a lower shell 12 and an upper shell 13.
  • the diameter of the drive wheel 6 is greater than the distance between the two opposing strands of the drive means within the rail 1.
  • a deflecting element 7 is provided on one side of the drive wheel 6, through which the course of the drive means tapers.
  • the region of the deflecting element which is in contact with the rear side of the drive means, is at a distance from the imaginary connecting line between the axis of rotation of the drive wheel and the axis of rotation of the deflecting roller, which is smaller than the rotational radius of the rear side of the drive means about the drive wheel.
  • a deflecting element is provided only for one of the two strands, while the other strand runs directly on the drive wheel 6 and is not influenced by a deflecting element in its path in the region of the drive wheel.
  • the deflecting element 7 has a plurality of sliding pins on which the rear side of the drive means slides and which deflect the drive means in such a way that the two strands are guided toward one another.
  • a roller or a roller arrangement may be used, on which the rear side of the drive means runs.
  • separating elements 8 are provided, which separate the two strands of the drive means from each other in the region of the deflecting element and in the adjoining region.
  • a first portion of the separating element 8 is arranged on the upper shell 13, and a second region on the lower shell 12. In this way, load strand and slack side are separated, so that the teeth of the toothed belt can not catch each other.
  • the drive end 3 of the rail element comprises a housing which is constructed from a lower shell 12 and an upper shell 13, which are connected to one another via connecting bolts 14 and to the drive unit comprising drive motor 10 and transmission 11.
  • both the drive wheel 6 are mounted, as well as the deflecting element 7 and the separating elements 8 integrated.
  • the housing has a receptacle 15, in which the profile of the rail 1 is inserted.
  • FIG. 6 is again easy to see how the toothed belt 2 rotates with a strand directly on the drive wheel 6, while the other drive train is deflected by the deflecting element 7 in the direction of the first strand, so that the resulting distance between the two strands is smaller than that Diameter of the drive wheel 6. Furthermore, the separator 8 between the two strands can be seen, which prevents a hooking of the two strands with each other in the deflection.
  • FIG. 7 are now the lower shell 12 and the upper shell 13 of the housing screwed together and the drive unit of drive motor 10 and gear 11 connected to the rail element.
  • the rail 1 was inserted into the receptacle 15 and fastened there.
  • the mounted rail element can be installed as a unit with the drive unit in different door drives.
  • FIGS. 8 and 9 now show the deflecting 3 of the rail element in a partial exploded view in which a cover member 23 has been removed from the deflection.
  • the drive means runs around the deflection roller 5, wherein in turn on one side a deflecting element 17 is provided in the form of two sliding pins, on which runs the back of the toothed belt and is deflected so.
  • the diameter of the deflection roller 5 is greater than the distance between the two strands of the drive means 2 within the rail.
  • one strand without deflection elements runs directly on the deflection roller, while the other strand is deflected inwards. Again, this results in only low friction losses and yet the narrow design of the rail 1 according to the invention.
  • a separating element 18 is also provided on the deflection side 3 between the two strands, so that the teeth of the toothed belt 2 can not catch each other when they are guided closer to each other in the deflection.
  • a housing 22 which has a receptacle 30 on one side, in which the rail 1 can be inserted. Opposite, the housing has a fastening element 31, with which it can be connected via an axis with a wall mount 25. The wall bracket 25 is then mounted on the fall side above the gate.
  • the deflection roller 5 In order to tension the drive means 2 after assembly of the rail element, the deflection roller 5 is displaceable within the housing 22.
  • the deflection roller 5, the deflection element 17 and the separating element 18 form a structural unit 19, which is displaceable in the housing 22.
  • FIG. 10 this unit is shifted maximum in the direction of rail 1, so that the drive means 2 is loosely located in the housing 22. In this position, the rail element can be easily transported.
  • FIG. 11 show the Assembly 19, however, in its mounted position, in which the drive means, although applied to the deflection roller, but is still free of stress.
  • the assembly with the guide roller 5 runs by means of a screw 27 in a slot 28 in the housing 22, which extends parallel to the longitudinal direction of the rail 1.
  • an eccentric 26 is rotatably mounted in the housing 22, which can move the assembly 19 with the guide roller in the longitudinal direction, if he, as in FIG. 13 is shown, rotated.
  • an Allen key 29 is required in the embodiment, by means of which the eccentric is rotated.
  • a turning handle arranged permanently on the deflection side would also be conceivable here.
  • the extremely narrow design of the rail 1 is possible, the asymmetric design ensures an extremely low-friction construction.
  • the rail element according to the invention is reliable and low-wear and yet allows due to the narrow rail compact drives and compact packaging.
  • the compact design of the rail means that the drive system consisting of the rail element and the drive unit can be preassembled and used as a component for various door drives.

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  • Power-Operated Mechanisms For Wings (AREA)
EP08016837A 2007-10-19 2008-09-24 Elément de rail et entraînement de portail Withdrawn EP2050912A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007014675U DE202007014675U1 (de) 2007-10-19 2007-10-19 Schienenelement und Torantrieb

Publications (1)

Publication Number Publication Date
EP2050912A2 true EP2050912A2 (fr) 2009-04-22

Family

ID=40193604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08016837A Withdrawn EP2050912A2 (fr) 2007-10-19 2008-09-24 Elément de rail et entraînement de portail

Country Status (4)

Country Link
US (1) US20100031574A1 (fr)
EP (1) EP2050912A2 (fr)
CN (1) CN101413371A (fr)
DE (1) DE202007014675U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644123B (zh) * 2009-08-19 2012-07-18 瞿德阳 一种绳索牵引机构及应用有该绳索牵引机构的推拉窗

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042120B4 (de) * 2010-10-07 2013-01-03 Geze Gmbh Spannvorrichtung
US9388621B2 (en) * 2011-05-24 2016-07-12 Overhead Door Corporation Decryption of access codes of diverse protocols in barrier operator systems
US8689486B2 (en) 2012-07-24 2014-04-08 The Chamberlain Group, Inc. Barrier operator and chassis
FR3010123B1 (fr) * 2013-08-27 2016-03-11 Sogal Fabrication Ets Systeme pour faire coulisser une porte
JP2015132104A (ja) * 2014-01-14 2015-07-23 アイシン精機株式会社 開閉体開閉装置
JP2016086881A (ja) * 2014-10-30 2016-05-23 株式会社ハイレックスコーポレーション 張力付与機構

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE7801714U1 (de) 1978-01-21 1978-05-24 Vereinigte Baubeschlagfabriken Gretsch & Co Gmbh, 7250 Leonberg Scharnier

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US2084733A (en) * 1936-03-05 1937-06-22 William T Kahliff Garage door opener
US2337591A (en) * 1941-09-02 1943-12-28 Renold & Coventry Chain Co Automatic chain tensioning device
US4414778A (en) * 1981-04-13 1983-11-15 The Alliance Manufacturing Company, Inc. Tape drive door operator
US4520684A (en) * 1983-02-03 1985-06-04 The Alliance Manufacturing Company, Inc. Tape drive closure operator
US4643701A (en) * 1985-09-04 1987-02-17 Phillips Home Products Sprocket and tape combination
US6374543B1 (en) * 2000-06-06 2002-04-23 Magdy N. Bishai Door opener apparatus with power transfer mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7801714U1 (de) 1978-01-21 1978-05-24 Vereinigte Baubeschlagfabriken Gretsch & Co Gmbh, 7250 Leonberg Scharnier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644123B (zh) * 2009-08-19 2012-07-18 瞿德阳 一种绳索牵引机构及应用有该绳索牵引机构的推拉窗

Also Published As

Publication number Publication date
US20100031574A1 (en) 2010-02-11
CN101413371A (zh) 2009-04-22
DE202007014675U1 (de) 2009-02-26

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