EP1764472B1 - Einstellung von Federspannung - Google Patents

Einstellung von Federspannung Download PDF

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Publication number
EP1764472B1
EP1764472B1 EP05108497A EP05108497A EP1764472B1 EP 1764472 B1 EP1764472 B1 EP 1764472B1 EP 05108497 A EP05108497 A EP 05108497A EP 05108497 A EP05108497 A EP 05108497A EP 1764472 B1 EP1764472 B1 EP 1764472B1
Authority
EP
European Patent Office
Prior art keywords
wrench assembly
wrench
latch
collar
engagement
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.)
Expired - Lifetime
Application number
EP05108497A
Other languages
English (en)
French (fr)
Other versions
EP1764472A1 (de
Inventor
Patrick Holmbom
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.)
Crawford Group AB
Original Assignee
Crawford Group AB
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
Priority to DK09175252.7T priority Critical patent/DK2172306T3/da
Priority to EP09175252A priority patent/EP2172306B1/de
Priority to EP05108497A priority patent/EP1764472B1/de
Priority to ES05108497T priority patent/ES2341969T3/es
Priority to AT09175252T priority patent/ATE485132T1/de
Priority to DE602005024327T priority patent/DE602005024327D1/de
Priority to DE602005019928T priority patent/DE602005019928D1/de
Priority to EP08157647A priority patent/EP2063062B1/de
Priority to AT08157647T priority patent/ATE460560T1/de
Priority to AT05108497T priority patent/ATE460559T1/de
Priority to DE602005019882T priority patent/DE602005019882D1/de
Application filed by Crawford Group AB filed Critical Crawford Group AB
Priority to CN2006800338083A priority patent/CN101268245B/zh
Priority to CN2010105761119A priority patent/CN102121348B/zh
Priority to RU2008114507/03A priority patent/RU2407874C2/ru
Priority to PCT/SE2006/001029 priority patent/WO2007032726A2/en
Publication of EP1764472A1 publication Critical patent/EP1764472A1/de
Application granted granted Critical
Publication of EP1764472B1 publication Critical patent/EP1764472B1/de
Priority to RU2010131818/03A priority patent/RU2532028C2/ru
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
    • 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
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/174—Bearings specially adapted therefor
    • 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
    • E06B9/62—Counterweighting arrangements
    • 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
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/624—Arms
    • 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
    • E05Y2201/676—Transmission of human force
    • 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
    • E05Y2201/706—Shafts
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/20—Adjustable with specific transmission movement
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/30—Adjustment motion
    • E05Y2600/32—Rotary motion
    • 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
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/10—Adjustable
    • E05Y2600/30—Adjustment motion
    • E05Y2600/33—Stepwise motion
    • 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 method for adjusting tension in springs mounted upon rotatable shafts. Furthermore, the invention relates to a wrench suitable for utilizing the method. Moreover, the invention relates to a collar system adapted for receiving said wrench.
  • Wrench assemblies are known from WO 2005/0658890 A , WO 2004/091946 A , DE 378127 C and US 3062079 A .
  • the installation of industrial, residential and in particular overhead doors usually involves installing guides that support each side of a moveable door structure and upon which the sides of the door structure are freely slideable.
  • some sort of counterbalancing device is usually provided so that the full weight of the moveable door structure is not encountered when the moveable door structure is transferred between an opened and closed condition or vice versa.
  • a counter balance device is provided so as to be able to reduce the horsepower requirements of the drive motor. For safety reasons the counter balancing device is also necessary in the event of failure of the door openers.
  • a prevailing type of counter balancing device in wide use with such door openers, especially ones that have power operated motors to assist the opening and closing of the doors, is a coiled spring mounted upon a rotatable shaft.
  • the shaft is usually located above the opening that is to be covered by the door and is transversely located across the path of the door.
  • a coiled spring in a somewhat concentric manner such that the longitudinal centerline of the spring approximately locates upon the longitudinal centerline of the shaft.
  • One end of the spring is fixedly attached to a structure upon which the shaft is rotatably mounted and the other end of the spring is held releasably attached to the rotatable shaft.
  • the tensioning for the door takes the form of adjusting the tension exerted by the coiled spring upon the rotatable shaft that also holds a wound drag element usually attached to the lowermost end of the door.
  • the tension exerted by the spring is supposed to just about counterbalance the weight of the door that is being transferred during opening and closing movement.
  • the counterbalancing effect of the weight of the door may origin from the mid of the door for some roller door arrangements or arranged such that it origins from a fully opened condition.
  • To adjust the tension of the spring it is necessary for one to loosen the releasably fixed end of the coil spring that is attached to the rotatable shaft and rotate the end of the spring relative to the shaft, either in a manner to lessen the tension or to tighten the tension.
  • a method for adjusting tension in springs mounted upon rotatable shafts comprises the steps of, applying a first and a second wrench for splined engagement with a collar of said shaft so as to hold the collar against movement in an undesired direction, said collar being mechanically connected to at least one spring, positioning of an axial locking device, said axial locking device being provided on at least one of said wrenches, to said collar thereby forming an axial locking engagement of said wrenches to said collar, adjusting tension in said at least one spring by winding said collar with at least one of said wrenches until an appropriate tension of the spring is achieved.
  • the collar comprises a locking device for fixing said collar to said shaft when the tension of the spring is properly adjusted.
  • each wrench may be held in the axial direction at all times. This enables secure working conditions and support for finding correct position and a thorough splined engagement during holding or working against the resilient force from the spring. In addition the splined engagement allows for service work and installation work even where there is little room for such operations.
  • the axial locking engagement is maintained during a whole spring tension adjusting cycle, involving splined disengagement during alternation of said wrenches.
  • the axial locking engagement is enabled by a tongue and groove engagement in which said tongue propagates circumferentially and in the transverse direction (B) in relation to the axial direction (A).
  • the axial locking device engagement comprises a tongue and groove locking relative to the axial direction (A) of the shaft.
  • the axial locking device comprises a U-shaped retractable plate for complementary engagement with a recess in said collar.
  • the collar comprises a U-shaped protruding portion for complementary engagement with a recess in said axial locking device.
  • the splined engagement of the wrench and collar is accomplished with a wrench spline angle less than 90 degrees and preferably between 80 and 90 degrees.
  • a complementary fit of the splines of the wrench and the splines of the collar reduces the risk for slipping. It has been discovered that an angle between the front edge of the wrench spline of slightly less than 90 degress measured between the inner near surface of the jaw and said front edge provides for improved grip.
  • the splined engagement involves engagement with splines propagating in the axial direction (A) of said shaft.
  • a further advantage is that the splined engagement is controllable by a latch function maneuverable from a latch operating handle of said wrench. Hence, the serviceman or installer do not have to change the grip of the wrench handle e.g when disengaging the splined engagement when adjusting tension.
  • the torque of said splined engagement is controllable and lockable by a torque locking mechanism being maneuverable from said wrench.
  • each wrench having an open ended jaw, with a close fit around a substantial portion of said collar and said opened ended jaw being provided for splined engagement with said collar.
  • the method of adjusting tension in springs is particularly well suited for a group consisting of overhead sliding doors, sliding doors and winding roller doors according to any one of the preceding claims.
  • the skilled person knowing of the invention may however find other areas of interest.
  • a wrench assembly which comprises, an elongate handle, an open ended jaw formation located on one end of said handle for closely surrounding and engaging a majority of the perimeter of a splined shaft, a spring loaded spline latch mechanism mounted on said handle and having a latch that, in a first position, protrudes into a jaw engagement area for splined engagement on said shaft and, in a second position is retracted from the jaw engagement area for splined disengagement, a latch operating device for moving said latch from one of said first position and said second position to the other of said first and second position, said open ended jaw formation being provided with a retractable tongue arranged on one side of the open ended jaw, said tongue being provided with a recess for closely surrounding at least part of a groove perimeter in proximity to said splined shaft.
  • the wrench spline angle is less than 90 degrees and preferably between 80 and 90 degrees.
  • the splined engagement is controllable by a latch maneuverable from a latch operating handle of said wrench assembly.
  • the disengagement of said splined engagement is prevented by a spring loaded spline latch mechanism as long as the latch is subject to an external loading resulting from the splined engagement.
  • the latch operating handle is operatively connected to the latch via a spring. If the loading on the latch exceeds the loading from the spring resulting from activating the latch operating handle the latch will remain in position for splined engagement, i.e. the force provided by the spring too the spring loaded latch mechanism is too low to disengage the splined engagement.
  • the installer or serviceman due to a mistake let go of both splined engagements at the same time at least one wrench when arranged properly will maintain the splined engagement.
  • the spring load in the spring loaded splined engagement is preferably provided by a push spring.
  • the push spring is connected to a rod of the latch.
  • the latch operating handle is operatively connected to the rod of the latch via a spring.
  • the spring characteristics of the push spring is low. Since the wrench spline angle is less than 90 degrees and preferably between 80 and 90 degrees the external loading does not have to be substantial in order to provide enough resistance to disengagement.
  • the latch operating handle is released the latch is pushed back in position for splined engagement in the jaw area by said push spring.
  • the torque of said splined engagement is controllable and lockable by a torque locking mechanism being maneuverable from said wrench assembly.
  • a torque locking mechanism being maneuverable from said wrench assembly.
  • the wrench assembly is provided with a hook for enabling hanging of said wrench assembly. It is realized that many doors requires such work on a substantial altitude and the hook facilitates for such situations.
  • the wrench assembly is provided with replaceable handle portions in order to enable a wrench assembly with different lengths.
  • the replaceable handle portion having the most suitable length may be screwed on to the elongate handle of the wrench assembly.
  • the handle is provided with a knob on the end portion in order to facilitate picking up of said wrench assembly.
  • the knob extends from the handle portion to an extent such that if there is a risk for an operator's fingers to become pinched between a structural element, such as a wall, and the handle portion the knob will provide enough room there between to avoid serious finger pinching.
  • a further object with the knob is to enable protection against slipping of the wrench in that it provides for support against loosing the grip during use in the axial direction of the elongate handle.
  • a collar system for being rotatably mounted upon a shaft and thus enabling tensioning of springs mounted upon rotatable shafts is presented, which collar system comprises, a secondary attachment portion adapted for mechanical connection to one end of said spring mounted upon said shaft, a primary attachment portion on said collar having longitudinally (C) extending splines formed on the outer periphery of said primary attachment portion, and said primary attachment portion is provided with at least one groove propagating transverse (D) to said splines.
  • the secondary attachment portion and the primary attachment portion may be mounted together on location.
  • the secondary attachment portion and the primary attachment portion form one unit.
  • the collar system comprises a locking device for fixing said collar to said shaft. During this step holding of one wrench against the spring tension is sufficient and allows for fixing the collar in relation to the shaft when the tension in the spring is properly adjusted.
  • said collar system comprises a body formed for attachment to at least said primary attachment portion, said body comprising complementary engagement means on its inside and holes propagating from the outside towards the inside of said body, said holes being arranged for receiving an alternative tension adjusting tool such as an iron bar.
  • This body enables the use of a currently conventional method of adjusting springs, using bars, e.g. in case wrenches of the preferred type is not available
  • said holes are arranged at given distances around a periphery of said body when following the periphery in the transverse (D) direction.
  • a coiled spring 57 is arranged around a shaft and fixed arranged to the surrounding structure of the door in one end (not shown). This represents a more typical type of spring tensioned shafts for doors that are designed for being wound up today.
  • a collar 50 is threaded onto the coiled spring 57 from the side such that a flange 55 follows the spiral path of the coiled spring 57.
  • a connecting element 59 is provided on the collar for connection with the end portion of the coiled spring, which is normally cranked. When the cranked end portion connects with the connecting element 59 the collar 50 is fixed in relation to the coiled spring 57 which is held between the flange 55 and connecting element 59.
  • the collar 50 is however rotatable in relation to said shaft.
  • the rotatable collar will have a set of screws 56 that may be positioned so as to engage the shaft member and hold the collar non-rotatable with the shaft.
  • the primary attachment portion 51 on said collar 50 has longitudinally (C) extending splines 52 formed on the outer periphery of said primary attachment portion 51, and said primary attachment portion (51) is provided with at least one groove 53 propagating transverse (D) to said splines 52.
  • the secondary attachment portion 54 and the primary attachment portion 51 form one unit.
  • a wrench assembly 1 having an elongate handle 2 an engagement section in the form of an open ended jaw 3 is disclosed.
  • the wrench is designed so that the area within the engagement section will form a close fit over the outer diameter of the splined section of the collar 50.
  • the spline latch mechanism 4 is protruding upwardly so that the engaging splines of the wrench 15 is in the area of the engagement section 3.
  • a lever arm 10 activates the recessed tongue 7 for axial locking of the wrench 1.
  • a pull of the latch operating device 5 towards the elongate handle 2 allows the plunger member to travel inwardly pulling the spline latch mechanism 4 in to the elongate handle 2.
  • the engagement section 3 may then be slid over the spline section of adapter.
  • two wrenches 1, 1' may engage the spline section of the collar 50.
  • the set screws 56 on the rotatable collar 50 may be loosened.
  • the rotatable collar 50 is loosened from its connection of the shaft wrenches 1, 1' may be used to hold collar 50 from rotating on the shaft.
  • the second wrench may have the latch operating device 5 activated so as to disengage its wrench splines 15 from the spline section of collar 50.
  • the second wrench 1' may then be advanced pivotal around the splined section of the collar 50.
  • the spline latch mechanism 4 may be released so that its wrench splines 15 engages the spline section of collar 50.
  • the latch operating device 5 of the first wrench 1 may be activated so that spline latch mechanism 15 is disengaged from the splines of the collar.
  • the second wrench 1' may now be rotated back until its elongated handle 2 is in alignment with the first wrench 1.
  • the spline latch mechanism 4 comprises a tensioned push spring 13 working against a rod 6 connecting said latch operating device 5 with said spline latch mechanism 4.
  • the disengagement of said splined engagement is prevented by a spring loaded spline latch mechanism 4 as long as the latch 15 is subject to an external loading resulting from the splined engagement.
  • the latch operating handle 5 is operatively connected to the spline latch mechanism 4 via a spring 13. If the loading on the latch 15 exceeds the loading from the spring 13 resulting from activating the latch operating handle 5 the latch 15 will remain in position for splined engagement, i.e. the force provided by the spring 13 to the spring loaded latch mechanism 4 is too low to disengage the splined engagement.
  • the installer or serviceman due to a mistake activate the latch operating handles 5 of bothe wrenches at the same time at least one wrench when arranged properly will maintain the splined engagement due to the external loading from the coiled spring.
  • the spring load in the spring loaded splined engagement is preferably provided by a push spring.
  • the push spring is connected to a rod of the latch.
  • the latch operating handle is operatively connected to the rod of the latch via a spring.
  • the spring characteristics of the push spring is low. Since the wrench spline angle is less than 90 degrees and preferably between 80 and 90 degrees the external loading does not have to be substantial in order to provide enough resistance to disengagement.
  • the latch operating handle is released the latch is pushed back in position for splined engagement in the jaw area by said push spring.
  • the torque resistance of said splined engagement is controllable and lockable by a torque locking mechanism 14 being maneuverable from said wrench assembly.
  • the torque locking mechanism 14 consist of a screw or similar attached through the wall of the elongated handle 2.
  • the screw may enter a pocket of the spline latch mechanism 4 from the side and support the bottom of the pocket. At the same time the pocket is stretched in the axial direction of the elongated handle 2 so as to allow for movement of the spline latch mechanism 4 if activated.
  • the wrench assembly 1 has an asymmetric opening of the open ended jaw 3.
  • the axial locking engagement is enabled by a tongue 7 and groove 53 engagement in which said tongue 7 propagates circumferentially and in the transverse direction (B) in relation to the axial direction (A). This is probably more clear in fig 2 .
  • the axial locking device 7 comprises a U-shaped retractable plate for complementary engagement with a recess 53 in said collar 50.
  • the collar may comprise a U-shaped protruding portion for complementary engagement with a recess in said axial locking device.
  • the wrench assembly 1 is provided with a hook 18 for enabling hanging of said wrench assembly 1. It is realized that many doors requires such work on a substantial altitude and the hook 18 facilitates for such situations since there is often not so much space for laying tools when not used.
  • the wrench assembly 1 is provided with replaceable handle portions 23 in order to enable a wrench assembly 1 with different lengths.
  • the replaceable handle portion 23 having the most suitable length may be screwed on to the elongate handle of the wrench assembly (not shown).
  • a further feature of the invention is that the handle 23 is provided with a knob 24 on the end portion in order to facilitate picking up said wrench assembly.
  • the knob extends from the handle portion to an extent such that if there is a risk for an operator's fingers to become pinched between a structural element, such as a wall, and the handle portion the knob will provide enough room there between to avoid serious finger pinching.
  • a further object with the knob is to enable protection against slipping of the wrench in that it provides for support against loosing the grip during use in the axial direction of the elongate handle.
  • Fig 6 discloses a further aspect of the invention in which said collar system 50 comprises a body 70 formed for attachment to at least said primary attachment portion 51.
  • the body 70 comprises complementary engagement means 73 on its inside and holes 72 propagating from the outside towards the inside of said body 70.
  • the holes 72 being arranged for receiving an alternative tension adjusting tool such as an iron bar.
  • the holes 72 are arranged at given distances around a periphery of said body 70 when following the periphery in the transverse (D) direction.
  • Axial locking in relation to the shaft is enabled by a pin which may be appied in a hole 78 for further engagement with the groove 53 in the collar.
  • fig 7 is depicted an alternative wrench for performing the claimed method.
  • the wrench comprises a closed jaw portion 128 for being arranged from the side to the shaft 158.
  • a resilient member 115 is provided for splined engagement with a radially splined collar.
  • a pivotal axial locking device 107 is provided for inner engagement with a hollow space of the collar extending circumferentially.
  • a second wrench (not shown) of similar type may be arranged next to said first wrench.
  • said first wrench is "pumped" back and forth while the second wrench is used for holding the collar in position during disengagement and so forth of said first wrench.
  • a second alternative wrench is disclosed for enabling the claimed method on doors.
  • the wrench comprises a closed jaw portion 228 for being arranged from the side to the shaft 258.
  • a resilient member 215 is provided for splined engagement with a longitudinally (A) extending splines 252 on the inner side of a collar.
  • a pivotal axial locking device 207 is provided for inner engagement with a hollow space 253 of the collar extending circumferentially.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Springs (AREA)

Claims (9)

  1. Schraubenschlüsselanordnung (1), die Folgendes umfasst:
    einen länglichen Handgriff (2);
    eine offen-endige Backenausbildung (3), die an einem Ende des Handgriffes (2) angeordnet ist, zum eng anliegenden Umfassen und Ineingriffnehmen eines Großteils des Umfangs einer Keilwelle;
    einen Keilprofilverriegelungsmechanismus (4), der an dem Handgriff (2) montiert ist und einen Riegel (15) aufweist, der - in einer ersten Position - in einen Backeneingriffnahmebereich hineinragt, um die Welle in einen verzahnten Eingriff zu nehmen, und der - in einer zweiten Position - aus dem Backeneingriffnahmebereich zurückgezogen ist, so dass der verzahnte Eingriff gelöst ist;
    eine Riegelbetätigungsvorrichtung (5) zum Bewegen des Riegels (15) aus der ersten Position und der zweiten Position in die zweite bzw. in die erste Position;
    dadurch gekennzeichnet, dass der Keilprofilverriegelungsmechanismus (4) federbelastet ist und die offen-endige Backenausbildung (3) mit einer zurückziehbaren Zunge (7) ausgestattet ist, die auf einer Seite des offen-endigen Backens angeordnet ist, wobei die Zunge (7) mit einer Vertiefung versehen ist, um mindestens einen Teil eines Nut (53)-Umfangs in der Nähe der Keilwelle eng zu umfassen.
  2. Schraubenschlüsselanordnung (1) nach Anspruch 1, wobei der Schraubenschlüssel-Keilprofilwinkel (16) kleiner als 90 Grad ist und bevorzugt zwischen 80 und 90 Grad beträgt.
  3. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-2, wobei die verzahnte Eingriffnahme durch eine Riegelfunktion (4) steuerbar ist, die über einen Riegelbedienhandgriff (5) der Schraubenschlüsselanordnung (1) betätigt werden kann.
  4. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-3, wobei das Lösen der verzahnten Eingriffnahme durch den federbelasteten Keilprofilverriegelungsmechanismus (4) verhindert wird, solange auf den Riegel (15) eine Belastungskraft von außen einwirkt.
  5. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-4, wobei das Drehmoment der verzahnten Eingriffnahme durch einen Drehmomentverriegelungsmechanismus (14) gesteuert und verriegelt werden kann, der über die Schraubenschlüsselanordnung (1) betätigt werden kann.
  6. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-5, wobei die Schraubenschlüsselanordnung (1) eine asymmetrische Öffnung des offen-endigen Backens (3) aufweist.
  7. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-6, wobei die Schraubenschlüsselanordnung (1) mit einem Haken (18) zum Aufhängen der Schraubenschlüsselanordnung (1) versehen ist.
  8. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-7, wobei die Schraubenschlüsselanordnung (1) mit austauschbaren Handgriffabschnitten (23) versehen ist, um eine Schraubenschlüsselanordnung (1) mit unterschiedlichen Längen zu ermöglichen.
  9. Schraubenschlüsselanordnung (1) nach einem der Ansprüche 1-8, wobei der Handgriff (2) mit einem Knauf (24) am Endabschnitt versehen ist, um das Aufnehmen der Schraubenschlüsselanordnung (1) zu erleichtern.
EP05108497A 1991-03-14 2005-09-15 Einstellung von Federspannung Expired - Lifetime EP1764472B1 (de)

Priority Applications (16)

Application Number Priority Date Filing Date Title
EP05108497A EP1764472B1 (de) 2005-09-15 2005-09-15 Einstellung von Federspannung
ES05108497T ES2341969T3 (es) 2005-09-15 2005-09-15 Ajuste de la tension de un muelle.
AT09175252T ATE485132T1 (de) 1991-03-14 2005-09-15 Einstellung einer federspannung
DE602005024327T DE602005024327D1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung
DE602005019928T DE602005019928D1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung
EP08157647A EP2063062B1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung
AT08157647T ATE460560T1 (de) 2005-09-15 2005-09-15 Einstellung einer federspannung
DE602005019882T DE602005019882D1 (de) 2005-09-15 2005-09-15 Einstellung von Federspannung
DK09175252.7T DK2172306T3 (da) 2005-09-15 2005-09-15 Justering af fjederspænding
EP09175252A EP2172306B1 (de) 1991-03-14 2005-09-15 Einstellung einer Federspannung
AT05108497T ATE460559T1 (de) 2005-09-15 2005-09-15 Einstellung von federspannung
CN2006800338083A CN101268245B (zh) 2005-09-15 2006-09-08 弹簧张力的调节
CN2010105761119A CN102121348B (zh) 2005-09-15 2006-09-08 弹簧张力的调节
RU2008114507/03A RU2407874C2 (ru) 2005-09-15 2006-09-08 Регулирование натяжения пружины
PCT/SE2006/001029 WO2007032726A2 (en) 2005-09-15 2006-09-08 Adjustment of spring tension
RU2010131818/03A RU2532028C2 (ru) 2005-09-15 2010-07-28 Регулирование натяжения пружины

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05108497A EP1764472B1 (de) 2005-09-15 2005-09-15 Einstellung von Federspannung

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP08157647A Division EP2063062B1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung
EP08157647.2 Division-Into 2008-06-05
EP09175252.7 Division-Into 2009-11-06

Publications (2)

Publication Number Publication Date
EP1764472A1 EP1764472A1 (de) 2007-03-21
EP1764472B1 true EP1764472B1 (de) 2010-03-10

Family

ID=35811776

Family Applications (3)

Application Number Title Priority Date Filing Date
EP08157647A Expired - Lifetime EP2063062B1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung
EP05108497A Expired - Lifetime EP1764472B1 (de) 1991-03-14 2005-09-15 Einstellung von Federspannung
EP09175252A Expired - Lifetime EP2172306B1 (de) 1991-03-14 2005-09-15 Einstellung einer Federspannung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP08157647A Expired - Lifetime EP2063062B1 (de) 2005-09-15 2005-09-15 Einstellung einer Federspannung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP09175252A Expired - Lifetime EP2172306B1 (de) 1991-03-14 2005-09-15 Einstellung einer Federspannung

Country Status (8)

Country Link
EP (3) EP2063062B1 (de)
CN (2) CN101268245B (de)
AT (3) ATE460559T1 (de)
DE (3) DE602005019928D1 (de)
DK (1) DK2172306T3 (de)
ES (1) ES2341969T3 (de)
RU (2) RU2407874C2 (de)
WO (1) WO2007032726A2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO2572106T3 (de) 2010-05-21 2018-04-14
US11235443B2 (en) 2013-03-26 2022-02-01 Milwaukee Electric Tool Corporation Pipe wrench
AU2015306723B2 (en) * 2014-08-27 2018-08-23 Milwaukee Electric Tool Corporation Pipe wrench
IT201600130739A1 (it) * 2016-12-23 2018-06-23 Masinara S P A Attrezzo e metodo per il precaricamento di una molla interna ad una scatola portamolla per serrande
JP7242808B2 (ja) * 2018-02-13 2023-03-20 文化シヤッター株式会社 開閉装置用戻しばねの伸長装置及びその伸長作業方法
JP6976188B2 (ja) * 2018-02-13 2021-12-08 文化シヤッター株式会社 開閉装置用戻しばねの伸長装置
CN109807779B (zh) * 2019-01-28 2020-09-15 上海瑞吉机械传动技术有限公司 弹性阻尼簧片联轴器中簧片的校准安装器械及联轴器
US11279011B1 (en) * 2020-10-15 2022-03-22 The Government of the United States of America, as represented by the Secretary of Homeland Security Negator spring tool for paratroop door

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DE378127C (de) * 1923-07-06 Wilhelm Loehr Schraubenschluessel mit zwei verschwenkbaren Backen
US1947070A (en) * 1932-07-29 1934-02-13 Higgin Mfg Co Device for controlling tension of spring rollers
US1977070A (en) * 1933-08-19 1934-10-16 Paper Patents Co Progressive paper machine drive
US2522428A (en) * 1946-12-10 1950-09-12 Julius M Brunstad Socket wrench
US3062079A (en) * 1960-02-23 1962-11-06 Wilbur A Davis End wrench with slidable jaw insert
US3661041A (en) * 1970-08-26 1972-05-09 Rudolf Welz Socket wrenches
CN2291263Y (zh) * 1997-01-28 1998-09-16 林晓燕 可快速拆换的棘轮扳手棘轮d头
DE19855697C2 (de) * 1998-07-27 2003-02-27 Hoermann Kg Federüberwachungsgerät
US6263541B1 (en) * 1999-01-21 2001-07-24 Windsor Door, Inc. Winding cone of an overhead door counterbalancing mechanism and torsion spring winding method therefor
US6735905B1 (en) * 2001-03-14 2004-05-18 Chi Overhead Doors, Inc. Ratcheting winding cone
US6527037B2 (en) * 2001-05-16 2003-03-04 Wayne-Dalton Corp. Rolling door tensioner
US20040020609A1 (en) * 2002-04-10 2004-02-05 Canimex Inc. Ratchet-like system for winding a rolling door assembly
US20040211298A1 (en) * 2003-04-10 2004-10-28 Williams Donald Edward Shock absorber system adjustment device
SE527594C2 (sv) * 2004-01-02 2006-04-18 Gunnar Kemppainen Spärrelement med ett griporgan och ett spärrorgan avsett för ett roterbart fästelement

Also Published As

Publication number Publication date
EP2172306B1 (de) 2010-10-20
RU2008114507A (ru) 2009-10-20
CN101268245A (zh) 2008-09-17
WO2007032726A2 (en) 2007-03-22
DE602005024327D1 (de) 2010-12-02
DE602005019882D1 (de) 2010-04-22
DE602005019928D1 (de) 2010-04-22
ATE485132T1 (de) 2010-11-15
CN102121348A (zh) 2011-07-13
EP2063062A1 (de) 2009-05-27
ATE460560T1 (de) 2010-03-15
ES2341969T3 (es) 2010-06-30
RU2532028C2 (ru) 2014-10-27
CN102121348B (zh) 2012-08-08
RU2010131818A (ru) 2012-02-10
DK2172306T3 (da) 2011-01-03
EP2063062B1 (de) 2010-03-10
ATE460559T1 (de) 2010-03-15
EP1764472A1 (de) 2007-03-21
RU2407874C2 (ru) 2010-12-27
EP2172306A1 (de) 2010-04-07
CN101268245B (zh) 2011-03-16
WO2007032726A3 (en) 2007-08-16

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