EP3676470A1 - Linear drive with rigid-spined chain - Google Patents
Linear drive with rigid-spined chainInfo
- Publication number
- EP3676470A1 EP3676470A1 EP18746127.2A EP18746127A EP3676470A1 EP 3676470 A1 EP3676470 A1 EP 3676470A1 EP 18746127 A EP18746127 A EP 18746127A EP 3676470 A1 EP3676470 A1 EP 3676470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- linear drive
- drive motor
- depot
- drive
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 13
- 239000003351 stiffener Substances 0.000 description 44
- 230000009467 reduction Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 6
- 238000011109 contamination Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000005192 partition Methods 0.000 description 5
- 241000309551 Arthraxon hispidus Species 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000008186 active pharmaceutical agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 241000256251 Spodoptera frugiperda Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- -1 brass Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
- E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
- E05F11/06—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables in guide-channels
-
- 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
- E05F11/34—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with screw mechanisms
-
- 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
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/619—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using flexible or rigid rack-and-pinion arrangements
-
- 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
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
- E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
-
- 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
- E05Y2201/10—Covers; Housings
-
- 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
- E05Y2201/644—Flexible elongated pulling elements
- E05Y2201/656—Chains
-
- 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
- E05Y2201/696—Screw mechanisms
- E05Y2201/702—Spindles; Worms
-
- 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
- E05Y2800/72—Sets of mutually exchangeable elements, e.g. modular
-
- 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
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
-
- 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
- E05Y2900/13—Type of wing
- E05Y2900/148—Windows
Definitions
- the present invention relates to a linear drive comprising a drive motor, a first engagement means drivable by the drive motor and a backstep chain, the backstay chain having second engagement means engaged with the first engagement means to drive the backstop chain.
- an actuating element in which a back-rigid chain is moved by means of a spindle driven by a motor.
- These actuators are used when opening and closing window sashes.
- the electric motor used is provided with a gear and drives an arranged in extension of the engine spindle.
- the back-rigid chain is arranged in the actuating element mainly in extension of the electric motor along the spindle, with which the chain is engaged.
- the lifting movement of this actuating element takes place substantially perpendicular to the spindle axis, wherein the back-rigid chain is deflected by the electric motor and guided to the outside, where the chain is then connected to the element to be actuated.
- This configuration results in a very slim shape of the actuator at a considerable length.
- JP 201 1/137514 A and JP 201 1/144874 A Another type of linearly acting lifting drive is shown in JP 201 1/137514 A and JP 201 1/144874 A, wherein two chain strands are brought together in the manner of a zipper principle and are wedged rigidly into one another.
- the chains are driven by a sprocket, which can intervene differently in the chain strands depending on the positioning of the motor. In this case, the sprocket on a réelle Vietnamese bemesser, which is greater than the width or the height of the associated motor.
- a sub-strand of the chain is deflected into a chain depot, which runs meandering on the side of the engine.
- the engagement in the chains takes place by means of a directly engaging in corresponding openings between the side plates sprocket or engaging in laterally projecting pin Triebstockrad.
- an actuating mechanism for a sun visor is known, which is moved by means of two chain strands.
- the chain strands are attached to two sides of the panel and are each driven by a worm. Since the two worms are driven by a motor, the helices of the worm are formed in opposite directions, whereby the two chain strands are deflected only after the engagement of the respective worm.
- the linear drive according to the invention comprises a drive motor, a first engagement means which can be driven by the drive motor and a back-rigid chain.
- a back stiff chain in the sense of this document is a chain whose curvature is limited to one direction. This restriction may e.g. take place by components on the chain links themselves, for example by stiffening tabs. Also possible is an external arrangement of guide elements, which are mounted along the stroke of the backrest chain.
- the back-rigid chain has a second engagement means which is engaged with the first engagement means in the engagement area.
- the linear drive according to the invention is designed such that the linear drive is suitable to perform a stroke of a length with at least 1.5 times the length of the drive motor.
- the linear drive according to the invention additionally has a chain depot, which is suitable for receiving a part of the backstacked chain. A storage of the backstep chain in the chain depot prevents contamination of the backstep chain. In addition, the chain depot prevents the backless chain from uncontrollably damaging nearby components.
- a chain depot in the context of this invention is any device that is capable of einhausen the unstressed part of the back stiff chain, restrict their free mobility, for example by the use of guides or rails and / or controlled in another way to keep.
- a back-stiff chain in the sense of this invention is a chain whose mobility in the chain links is limited by movement-inhibiting elements in at least one direction. These may be, for example, specially shaped chain links, such as those used in a conventional backstacked chain. However, it is also possible to use guide elements in combination with the chain, which restrict free mobility in the chain links in at least one direction.
- the second backstay chain engagement means may be any backstay chain element. This includes in particular the roles of a roller chain, the bolts, outer or inner plates, reinforcements or additional attachments of the backrest chain.
- the chain depot is adapted to receive the unloaded part of the backstacked chain.
- the chain depot refers to the region of the linear drive according to the invention, in which the back-rigid chain is unloaded directly from the engagement region.
- the chain depot is adapted to receive a portion of the backstiffened chain with a length of at least the stroke.
- the back-rigid chain is completely stored in the chain depot with minimal stroke of the linear drive.
- the stroke of the linear drive corresponds to at least 2 times the length of the drive motor, preferably at least 2.5 times the drive motor.
- the chain depot is arranged next to the drive motor. Due to this design, the linear drive is designed to be particularly compact and takes up little space in the installation of the linear drive.
- the chain depot and the drive motor are arranged in a structural unit. Due to this design of the linear drive, the linear drive can be installed as a stand-alone unit for many applications and can be exchanged quickly and inexpensively as needed.
- the assembly is arranged in a housing which protects the components and the electrical connections against contamination, in particular moisture.
- the drive motor on a transmission.
- the transmission increases the torque and reduces the speed of the drive motor, which thus exerts large forces on the back stiff chain even with low power.
- the transmission couples the drive motor with the drivable first engagement means.
- the transmission is disposed between the drive motor and the first engagement means and increases the torque while reducing the speed of the first engagement means.
- the linear drive has a first component.
- the first component has the drive motor, the transmission and / or the first engagement means drivable by the drive motor.
- the first component has a Height, width and depth, as well as the chain depot.
- the length values are dimensioned such that the height of the first component is greater than or equal to the height of the chain depot and / or the width of the first component is greater than or equal to the width of the chain depot and / or the depth of the first component is greater than or equal to the depth of the Chain depots amounts.
- the dimensions of the chain depot do not exceed the dimensions predetermined by the first component and / or only in one dimension and / or only in two dimensions.
- the drive motor has a height, width and depth, as well as the chain depot.
- the drive motor has a height, width and depth, as well as the chain depot.
- the length values are dimensioned such that the height of the drive motor is greater than or equal to the height of the chain depot and / or the width of the drive motor is greater than or equal to the width of the chain depot and / or the depth of the drive motor is greater than or equal to the depth of the chain depot.
- the dimensions of the chain depot do not exceed the dimensions given by the drive motor and / or only in one dimension and / or in two dimensions.
- the back-stiff chain is guided along in a plane on the drive motor, which is arranged parallel to the geometric axis of the motor.
- the transmission between the drive motor and engagement means thus changes the axis of rotation of the engagement means by a right angle to the geometric axis of the motor, that the back-rigid chain is guided parallel to the geometric axis of the motor.
- the back-rigid chain can be guided past the drive motor over a length which corresponds to at least 50% of the length, preferably at least 80%, of the length of the drive motor.
- a deflection of the back-rigid chain takes place in the unloaded section of the back-rigid chain in the region of the chain depot.
- a deflection of the back-rigid chain is particularly space-saving, so that a large area of the unloaded part of the back-rigid chain can be accommodated in the chain depot.
- a portion of the back-rigid chain in the chain depot, a portion of the back-rigid chain can be accommodated, whose length corresponds to at least 1.5 times the length of the structural unit.
- the assembly comprises a drive motor, a transmission and / or a first engagement means. To reduce the length of the linear drive, it makes sense to accommodate the largest possible portion of the length of the back-rigid chain in the chain depot. The total length of the linear drive in the retracted state of the backride chain is considerably reduced at maximum retracted stroke of the actuator.
- the back-stiff chain in the chain depot is deflectable storable in two parallel chain strands.
- a deflection of the back-rigid chain in two parallel chain sections is particularly space-saving.
- the back-rigid chain in the chain depot is worm-shaped storable.
- a deflection of the back stiff chain in snail shape is particularly space-saving.
- the remote from the back end chain is fixed in the region of the chain depot. If the stroke movement of the linear drive is at a maximum, the end remote from the backrest chain remote from the actuation can be fastened in the chain depot, for example via position elements attached to the backstacked chain, which can be detected by means of sensors. The sensor then ensures a corresponding control of the drive motor when reaching the maximum Stroke length of the linear drive turns off the drive motor. Due to the positioning of the remote end of the back-end chain in the area of the chain depot, it is not necessary to guide the back-end chain into the chain depot during the reduction of the stroke length.
- the engagement means is a worm or sprocket.
- the chain depot is arranged between a base plate and a hood.
- a back-stiff chain usually has a lubricant, in addition, dirt can still occur during operation.
- the chain depot is separated by this embodiment of the invention from the drive motor so that the electrical system of the drive motor is not damaged by the back-warp chain.
- the drive motor itself can be housed, a built-partition between chain depot and drive motor is also possible.
- the chain depot has a substantially rectangular shape with flat side surfaces. One of the side surfaces is arranged adjacent to an outer side of the drive motor. In a preferred embodiment, the largest side surface of the chain depot is arranged adjacent to the outside of the drive motor.
- the stroke takes place during extension of the back-rigid chain in one direction pointing away from the drive motor and or gear of the linear actuator.
- This has the advantage that the path of the chain is minimized by the engagement means to their area of use, since the chain does not first have to be passed to components of the linear actuator.
- the length of the chain can be chosen correspondingly shorter. This in turn leads to lower costs and a more compact design, since less chain must be stowed in the chain depot.
- the inventive method of a linear drive for storing a back-rigid chain has two process steps: In the first step, a back-rigid chain with a drive motor over a length of at least 1.5 times the length of the drive motor is driven.
- the back-rigid chain is moved away during the enlargement of the stroke in the extension direction from the engagement area of the drive motor, ie, the distance of each under load chain link of the back stiffener chain to the drive motor is increased. Conversely, the distance of each loaded chain link of the backstep chain to the drive motor is reduced when the backstop chain is retracted as the stroke is reduced.
- the back-stiff chain is guided into a chain depot.
- the warp depot is designed such that it is capable of accommodating at least 30% of the unloaded portion of the backstacked warp.
- the back-stiff chain itself has a great length.
- the largest possible area of the unloaded part of the back-rigid chain is stored in the chain depot according to the invention.
- the unloaded part of the backstacked chain is inserted and / or executed in the chain depot.
- the chain depot refers to the region of the linear drive according to the invention, in which the back-rigid chain is unloaded directly from the engagement region.
- the unloaded part of the backstacked chain is inserted and / or executed with a length of the stroke length into the chain depot.
- the back-rigid chain is completely stored in the chain depot with minimal stroke of the linear drive.
- the stroke length of the linear actuator corresponds to at least 2 times the length of the drive motor, preferably at least 2.5 times the length of the drive motor.
- the back stiff chain is guided along in a plane on the drive motor, which is arranged parallel to the geometric axis of the motor.
- the transmission between the drive motor and engagement means thus changes the axis of rotation of the engagement means by a right angle to the geometric axis of the motor, that the back-rigid chain is guided parallel to the geometric axis of the motor.
- the back-rigid chain is deflected in the chain depot.
- a deflection of the back-rigid chain is particularly space-saving, so that a large area of the unloaded part of the back-rigid chain can be accommodated in the chain depot.
- the back stiff chain is deflected in the chain depot and stored in two mutually parallel chain strands.
- a deflection of the back-rigid chain in two parallel chain sections is particularly space-saving.
- the back-rigid chain is deflected in the chain depot and stored in a spiral shape.
- a deflection of the back stiff chain in snail shape is particularly space-saving.
- a portion of the back-rigid chain is housed in the chain depot, the length of which corresponds at least to 1, 5 times the length of the assembly.
- the assembly comprises a drive motor, a transmission and / or a first engagement means. To reduce the length of the linear drive, it makes sense to accommodate the largest possible portion of the length of the back-rigid chain in the chain depot. The total length of the linear drive in the retracted Condition of the backstep chain is considerably reduced at maximum retracted stroke of the actuator.
- a second back stiffener chain is provided, the second back stiffener chain having engagement means which also engage the helical groove of the auger to drive the second back stiffener chain in synchronism with the first back stiffener chain.
- the paired arrangement of two back-stiff chains in a linear drive standardized, rigid push chains can be used and absorb the transverse forces acting in the linear drive.
- the engagement of the first and second back stiffener chain with corresponding engagement means in the helical groove of the same screw allows a synchronous drive, wherein the linear drive further manages with a single drive motor and a single driven screw.
- the limitation of the drive unit to a drive motor and a drivable screw for the first and second back stiff chain also reduces the space required for a linear drive according to the invention.
- the first and second spine chains in engagement with the helical groove of the screw and other back stiffener chains can be brought via corresponding engagement means in engagement with the helical groove of the screw and in the linear drive according to the invention in synchronism with the first and second back-stiffened chain to be driven.
- the first back stiffener chain and the second back stiffener chain have alternating inner chain links and outer chain links interconnected by means of link pins, the stud axes of the link pins of the first backstep chain and the second backstep chain being guided in a common plane extending along or parallel to the geometric axis of the screw.
- the two back-rigid chains are no longer deflected out of this plane, starting from the region of engagement with the worm drivable by the drive motor until they are connected to the actuated element, so that it is possible to travel along this path Level directly above the helical groove of the screw to apply a thrust.
- the guidance of the first and second spider chain in this common plane is also suitable for achieving a compact design the back stiff chains can move very close along the drive motor and screw drive unit.
- the rigid rear side of the first backstay chain and the rigid back side of the second backstop chain can be arranged on different sides of the plane.
- a rigid connecting element is provided, wherein the ends of the first back-rigid chain and the second back-rigid chain are connected to the connecting element.
- the paired arrangement of the first and second spine chains on the connecting element not only enables the secure absorption of transverse forces, but also a bias of the first and second spine chains to each other, wherein the bias acting in the two back stiffener chains can be adjusted individually.
- the provision of such a rigid connecting element facilitates the use of such a linear drive for stage or lifting devices, in which an unintentional occurrence of high shear forces is possible.
- a particular embodiment of the linear drive according to the invention provides that the first back stiffener chain and the second back stiffener chain are guided outside of the screw and with their engagement means at least partially along the drive motor, wherein the core diameter of the screw is greater than twice the distance of the motor axis the motor outer sides, where the first back stiffener chain and the second back stiffener chain are guided along.
- the wear of the linear drive can be kept low.
- Such a linear drive according to the invention enables the replacement of hydraulic or pneumatic cylinders by an electrically actuated drive motor.
- Under the core diameter of the screw is in this context, the base or base diameter of the introduced helical groove to understand.
- the back stiff chains can come into engagement with their engagement means with the screw.
- the joint axes of the back-rigid chains can be aligned exactly perpendicular to the screw axis or at a distance offset from this axis.
- the first and second back stiffener chain over a length of the drive motor can be guided, which corresponds to at least 50% of the length, preferably at least 80% of the length of the drive motor.
- a considerable reduction in length occurs in particular when the thrust force is applied away from the drive motor, because then the non-pressurized length of the back-rigid chains can extend along the drive motor and does not lead to an overall extension of the linear drive.
- a chain depot for the first spine chain and the second spine chain can be provided laterally along the drive motor, the chain depots each having at least two adjacent, preferably parallel sections of the first spine chain or the second back-stiffened chain are formed.
- These chain depots can each be designed as a total depot or as an intermediate depot for the first and second spine chains.
- the remote end of the back-rigid chains is preferably fastened in the region of the chain depots.
- this design may lead to a slightly wider configuration of the linear drive, but the overall length can be considerably shortened when retracted chains of the back stiff chains.
- sections of the first and second spine chains may be accommodated in the chain depots, the lengths of which correspond at least to 1.5 times the length of the drive motor.
- the back-stiff chains are therefore in the chain depots meandering back and forth, which can also be done multiple times.
- the geometric axis of the worm can be arranged coaxially to the motor axis, wherein the worm has an outer diameter which is greater than twice the distance of the motor axis to the motor outside, on one of the two backrest chains is guided along.
- the drive motor may be provided with a gear which is coupled to the worm.
- the transmission leads to a reduction of the rotational movement and an increase in the torque, with common ratios of 3: 1, 4: 1 or 6: 1.
- the worm drivable by the drive motor transmits by means of the helical groove, the force of the drive motor on the first and second back-rigid chain. So that the back-rigid chains are exposed to as little wear as possible, a reduction in friction can be achieved by a suitable choice of material of the screw.
- the worm may have a sleeve-shaped worm body and a non-rotatable drive shaft connected thereto.
- the screw body can thereby be made of a low-cost, easily machined material, such as a plastic, wherein the friction properties of the screw body can be selected according to the engagement means of the two back-rigid chains. Further, the screw body can be easily replaced with a problematic wear by a new screw body, which in turn is rotatably connected to the drive shaft.
- first back stiffener chain and the second back stiffener chain at least at predetermined intervals and at least laterally projecting laterally projecting chain pins as engaging means such that a protruding part of the chain pin with the screw in engagement is or can be brought.
- back-stiff chains can be used, in which only at least some of the chain pins are made longer. All other components of such conventional back stiffener chains can be maintained in a similar manner and require no adjustment.
- the engagement means comprise elements for reducing friction in the form of at least one rotatable roller or a sliding shoe, which engage in the helical groove of the worm.
- Sliding shoes may for example have the shape of a key or the cross-sectional shape of an ellipse. Also, a height-convex feather key shape or elliptical shape can be used. All side surfaces can be made spherical.
- the rollers can be ball bearings or even ball bearings. The use of sintered rollers, which may be soaked in a lubricant, is also possible.
- the engagement means comprise elements for slip compensation in the form of a plurality of rotatable rollers arranged side by side on a projecting chain pin and / or a conically shaped roller and a helical groove adapted thereto. Due to speed differences over the worm radius, a slip on the Contact points between roller and worm. If several shorter rollers are attached to an extended bolt, each roller will have a different speed. The slip is significantly reduced. With the aid of conicity on the rollers and the worm speed differences are compensated.
- first back stiffener chain and the second back stiffener chain are guided in the region of the screw in each case by means of a guide rail which has in each case one rear side facing away from the engagement sides of the chain and two outwardly facing sides.
- a guide rail which has in each case one rear side facing away from the engagement sides of the chain and two outwardly facing sides.
- low-friction materials can be used and the guide rail itself be formed interchangeable.
- These guide rails offer the possibility of a targeted guidance and support of the first and second back-rigid chain, for example in a chain depot.
- the guide rails may also have rollers or wheels to reduce friction or be formed by rollers or wheels.
- the linear drive is a compact unit and designed as a self-supporting construction, which can be used independently of the corresponding application conditions as a modular module ,
- a support structure with a base body and a first back stiffening chain and the second back stiffener chain bridging, arranged on the base body bearing plate is configured, wherein on one side of the bearing plate, the screw is mounted.
- the main body further allows the arrangement of the linear drive in various installation situations.
- the support structure may include a back plate bridging face plate at the front end of the base body and an end plate at the rear end of the base body, which are arranged substantially parallel to the bearing plate, and corresponding side parts, wherein the front plate, the bearing plate and the end plate are interconnected by means of the guided on the worm and the drive motor side parts of the base body.
- the front panel forms, possibly together with corresponding guide rails, an outlet for the actuating ends of the first and second backstatte chains, while all other components of the linear drive according to the invention within the support structure and are arranged protected. As a result, the possibly occurring by the Anbringsituation the linear drive forces can be absorbed and passed to the drive motor and the screw.
- the front panel can also be used as a second bearing plate for the screw.
- a cover may be provided which covers the open longitudinal sides of the support structure, wherein the worm, the drive motor and possibly the chain depots or the laterally guided on the worm and the drive motor sections of the first and second back-rigid chain between Base and cover are arranged.
- the bushings of the two back-rigid chains can be provided from the housing with specially shaped brushes. These brushes could also relubricate the back stiff chains including the friction reducing elements.
- position elements which can be detected by means of one or more sensors can be attached to the first and second backstep chain, wherein the position elements are, for example, clipped into the backstacked chains.
- Such position elements can be used as reference points of the linear drive according to the invention, with the aid of which a subdivision of the entire drive path and an electronic control can be made possible.
- the worm drivable by the drive motor with helical groove is designed as a hollow screw, wherein the first and second rigid back chain are passed through the hollow screw parallel to each other and driven by the inner helical groove.
- a hollow screw in addition to the Other embodiments of the linear drive according to the invention a very narrow design.
- the first back stiffener chain can be connected to a first drive unit with drivable screw and the second back stiffener chain to a second drive unit with drivable screw, the first back stiffener chain and second back stiffener chain are driven synchronously and a rigid Connecting element are interconnected.
- the platform could serve a lifting system at the corners of which at least the first and second back-rigid chain are fastened torsionally stiff to each other.
- Fig. 1 a side view of the linear drive according to the invention with minimal lift
- Fig. 1 b side view of the linear drive according to the invention at maximum stroke
- Fig. 2 a side view of the linear drive according to the invention, back rigid chain mounted in a helical shape, sprocket as engaging means
- Fig. 2 b top view of the linear drive according to the invention, back rigid chain helically mounted, sprocket as engaging means
- Fig. 2 c plan view of the linear drive according to the invention, back rigid chain mounted helically, sprocket as engaging means, width of the back stiff chain enlarged
- Fig. 3 a side view of the linear drive according to the invention, back rigid chain stored in mutually parallel sections, hollow screw as engaging means, chain depot separated by hood
- Fig. 3b Top view of the linear drive according to the invention, back rigid chain stored in mutually parallel sections, hollow screw as engagement means, chain depot separated by hood
- Fig. 4 a side view of the linear drive according to the invention, back rigid chain mounted helically, sprocket as engaging means, chain depot separated by a partition
- 4 b top view of the linear drive according to the invention, back-rigid chain mounted in mutually parallel sections, hollow screw as engaging means,
- FIG. 6 shows a perspective side view of the linear drive from FIG. 5, wherein a lateral cover has been omitted
- FIG. 7 shows the side view of the linear drive from FIG. 5 without cover
- FIG. 8 is a sectional side view of the linear drive of FIG. 5,
- FIG. 10 is an enlarged view of the functional components corresponding to FIG. 8,
- Fig. 1 1 is a sectional side view of the screw and the two back stiffeners
- Fig. 13 is a sectional side view of another embodiment of
- the linear drive 1 shows a view of the linear drive 1 according to the invention with a minimal stroke (FIG. 1 a) and maximum stroke (FIG. 1 b) of the linear drive 1.
- the linear drive 1 has a drive motor 15 and the first engagement means 19, which is formed in this embodiment as a sprocket, which engages in the formed by the chain pin 27 of the back-rigid chain 3 spaces.
- the sprocket 19 By rotation of the sprocket 19 perpendicular to the motor axis AM, the back-rigid chain 3 is moved along the motor axis AM.
- the engagement means 19 engages in the engagement region 28 in a back-rigid chain 3, which is designed here as an outer link chain.
- the back-rigid chain 3 has inner chain links 24 connected via outer chain links 25.
- Chain pin 27 connect an outer chain link 25 with an inner chain link 24.
- Chain depot 29, drive motor 15, gear 16 and first engagement means 19 are housed in a housing 2 for protection against contamination.
- the housing 2 has a window opening 31, as well as the chain depot 29 has a window opening 29.1.
- the drive motor 15 drives via gear 16 and engagement means 19, the back-rigid chain 3 at. If the stroke length is reduced, the back-stiff chain 3 is guided along the drive motor 15 into the chain depot 29 and the unloaded part 3u of the back-stiff chain 3 is stored in the chain depot 29.
- the back-rigid chain 3 is deflected in the chain depot 29 and stored in two mutually parallel chain sections (Fig. 1 a). Due to the formation of the engagement means 19 as a sprocket, the back-rigid chain 3 is guided laterally along the drive motor 15.
- the chain depot 19 is arranged laterally offset parallel to the motor axis AM next to the drive motor 15.
- the stroke H of the linear drive 1 is greater than the length of the drive motor La (FIG. 1 b).
- the maximum stroke H of the linear drive 1 is at least 1, 5 times, preferably at least 2.5 times the length of the drive motor La.
- the remote from the back end chain 3 can be secured in the chain depot 29, for example via attached to the back-rigid chain 3 position elements that are detectable by sensors. The sensor then ensures a corresponding control of the drive motor 15, which turns off the drive motor 15 when the maximum stroke length of the linear drive 1 is reached. Due to the positioning of the remote from the actuator back end of the back-rigid chain 3 in the chain depot 29 is a guide the back-rigid chain 3 in the chain depot 29 during the reduction of the stroke length is not necessary.
- the unloaded part 3u of the back-stiffened chain 3 moves conditionally into the chain depot 29 due to its inherent rigidity.
- the linear drive 1 has a drive motor 15 and the first engagement means 19, which is formed in this embodiment as a sprocket, in the through the chain pins 27 of the back-rigid chain 3 intervening spaces formed.
- the sprocket 19 perpendicular to the motor axis AM, the back-rigid chain 3 is moved along the motor axis AM.
- the drive motor 15 couples by means of the motor shaft 23 to the transmission 16, which in turn couples via the drive shaft 21 with the first engagement means 19.
- the engagement means 19 engages in the engagement region 28 in a back-rigid chain 3, which is designed here as an outer link chain.
- the back-rigid chain 3 has inner chain links 24 connected via outer chain links 25.
- Chain pin 27 connect an outer chain link 25 with an inner chain link 24.
- Kettendepot 29, drive motor 15, motor shaft 23, drive shaft 21, gear 16 and first engagement means 19 together with the chain depot 29, a first component, which is protected by the housing 2 from contamination.
- the housing 2 has a window opening 31, as well as the chain depot 29 has a window opening 29.1.
- the drive motor 15 drives the back-end chain 3 via the motor shaft 23, the transmission 16, the drive shaft 21 and the engagement means 19. If the stroke length is reduced, the back-stiff chain 3 is guided along the drive motor 15 into the chain depot 29 and the unloaded part 3u of the back-stiff chain 3 is stored in the chain depot 29.
- the back-rigid chain 3 is deflected in the chain depot 29 and mounted helically (Fig. 2 a). Due to the formation of the engagement means 19 as a sprocket, the back-rigid chain 3 is guided laterally along the drive motor 15.
- the chain depot 19 is arranged laterally offset parallel to the motor axis AM next to the drive motor 15.
- the height Hb of the first component is greater than the height Hk of the chain depot (FIG. 2 a), the width Bb of the first component is greater than the width Bk of the chain depot.
- the depth Tk of the warp deposit is less than the depth Tb of the first component ( Figure 2 b).
- the depth Tk of the chain depot is increased, but the depth Tk of the chain depot is less than the depth Tb of the first component.
- the height Hk and width Bb of the warp deposit do not change, the size of the warp deposit 29 is changed only in one dimension.
- the unloaded part 3u of the back-stiffened warp 3 is deflected in such a way that the back-stiff warp 3 is mounted in a helical form.
- the unloaded part 3u of the back-rigid chain 3 have a greater length and thus increase the stroke length of the linear drive.
- FIG. 3 shows an exemplary embodiment of the linear drive 1 according to the invention, in which the chain depot 29 is separated from the first component 42 by a hood.
- the linear drive 1 has a drive motor 15 and the first engagement means 19, which is formed in this embodiment as a sprocket, which engages in the formed by the chain pin 27 of the back-rigid chain 3 spaces.
- the sprocket 19 perpendicular to the motor axis AM, the back-rigid chain 3 is moved along the motor axis AM.
- the drive motor 15 couples by means of the motor shaft 23 to the transmission 16, which in turn couples via the drive shaft 21 with the first engagement means 19.
- the engagement means 19 engages in the engagement region 28 in a back-rigid chain 3, which is designed here as an outer link chain.
- the back-rigid chain 3 has inner chain links 24 connected via outer chain links 25.
- Chain pin 27 connect an outer chain link 25 with an inner chain link 24.
- Kettendepot 29, drive motor 15, motor shaft 23, drive shaft 21, gear 16 and first engagement means 19 are protected by the housing 2 from contamination.
- the housing 2 has a window opening 31, as well as the chain depot 29 has a window opening 29.1.
- the chain depot 29 is structurally separated from the drive motor 15 by a hood. To operate the linear drive 1, the drive motor 15 drives the back-end chain 3 via the motor shaft 23, the transmission 16, the drive shaft 21 and the engagement means 19.
- the back-stiff chain 3 is guided along the drive motor 15 into the chain depot 29 and the unloaded part 3u of the back-stiff chain 3 is stored in the chain depot 29.
- the back-rigid chain 3 is deflected in the chain depot 29 and stored in two mutually parallel chain sections ( Figure 3 a). Due to the formation of the engagement means 19 as a sprocket, the back-rigid chain 3 is guided laterally along the drive motor 15.
- the chain depot 19 is arranged laterally offset parallel to the motor axis AM next to the drive motor 15.
- the height Ha of the drive motor is less than the height Hk of the warp deposit (FIG. 3a)
- the width Bk of the warp deposit is less than the width Ba of the drive motor.
- the depth Tk of the warp deposit is also less than the depth Ta of the drive motor ( Figure 3b). Due to these dimensions of the warp depot 29, the unloaded part 3u of the back-stiffened warp 3 is deflected in such a way that the back-stiff warp 3 is mounted in two chain sections running essentially parallel to one another.
- the linear drive 1 has a drive motor 15 and the first engagement means 19, which is formed in this embodiment as a sprocket which engages in the formed by the chain pin 27 of the back-rigid chain 3 spaces.
- the sprocket 19 By rotation of the sprocket 19 perpendicular to the motor axis AM, the back-rigid chain 3 is moved along the motor axis AM.
- the drive motor 15 coupled by means of motor shaft 23 to the transmission 16, which in turn via the drive shaft 21 to the first Engagement means 19 couples.
- the engagement means 19 engages in the engagement region 28 in a back-rigid chain 3, which is designed here as an outer link chain.
- the back-rigid chain 3 has inner chain links 24 connected via outer chain links 25.
- Chain pin 27 connect an outer chain link 25 with an inner chain link 24.
- the housing 2 has a window opening 31, as well as the chain depot 29 has a window opening 29.1.
- the chain depot 29 is structurally separated from the first component 42 by a partition wall, the other sides of the chain depot 29 are delimited by the housing 2.
- the drive motor 15 drives the back-end chain 3 via the motor shaft 23, the transmission 16, the drive shaft 21 and the engagement means 19. If the stroke length is reduced, the back-stiff chain 3 is guided along the drive motor 15 into the chain depot 29 and the unloaded part 3u of the back-stiff chain 3 is stored in the chain depot 29.
- the back-rigid chain 3 is deflected in the chain depot 29 and stored in two mutually parallel chain sections ( Figure 4a). Due to the formation of the engagement means 19 as a sprocket, the back-rigid chain 3 is guided laterally along the drive motor 15.
- the chain depot 19 is arranged laterally offset parallel to the motor axis AM next to the drive motor 15.
- the height Ha of the drive motor is less than the height Hk of the warp deposit (FIG. 4 a), the width Bk of the warp deposit is less than the width Ba of the drive motor.
- the depth Tk of the warp deposit is also less than the depth Ta of the drive motor ( Figure 4b). Due to these dimensions of the warp depot 29, the unloaded part 3u of the back-stiffened warp 3 is deflected in such a way that the back-stiff warp 3 is mounted in two chain sections running essentially parallel to one another.
- This embodiment shows a comparatively simple structure of the linear drive according to the invention, in which the back-rigid chain 3 is still securely guided in the chain depot 29.
- linear drive 1 comprises an elongated, cuboid housing 2, and a first back-rigid chain 3.1 and a second back-rigid chain 3.2, which are stiffened in opposite pivot directions.
- a joint head 4 is provided with ball joint for pivotally mounting the linear drive 1.
- numerous other mounting options for the linear drive 1 can be provided on the bottom 6 of the housing 2, wherein in addition to a pivotal mounting and a rigid attachment is possible.
- An immediate attachment to the housing 2 is conceivable.
- the back stiffening chains 3.1 and 3.2 move at the front end, ie the front side 5 of the housing 2, on and off.
- the housing 2 comprises, in addition to the front plate 8 on the front 5 and an end plate 9 on the bottom 6, a cover 10 which is screwed to a base body 1 1 of the housing 2.
- the housing 2 comprises a support structure to which, in addition to the front plate 8 and the end plate 9 arranged parallel thereto, the base body 1 1 belongs. This can be clearly seen in the perspective side view of the linear drive 1 in FIG. 6.
- the supporting structure of the linear drive 1 also includes a bearing plate 12 arranged between the front plate 8 and the end plate 9 and extending parallel to and spaced from the front plate 8 and end plate 9 between the two side parts 13 and 14 of the main body 11.
- the side parts 13, 14 are frontally screwed to the front plate 8 and the end plate 9 and laterally with the bearing plate 12.
- the side parts 1 3, 14 extend over the entire length between the front plate 8 and the end plate 9.
- the cover 10 therefore only serves to protect the components of the linear drive 1 arranged inside the support structure and described in more detail below. Also on the back of the support structure, a corresponding cover 10 may be arranged.
- an electric drive motor 15 and a connected to the drive motor 15 gear 16 are arranged in the housing 2.
- the drive unit of drive motor 15 and gear 16 is disposed between the bearing plate 12 and the end plate 9.
- drive motor 15 and gear 16 are fastened together by means of a flange 17 on the bearing plate 12.
- the attachment of the drive motor 15 together with the gear 16 is therefore only one side of the bearing plate 12, for example by means of screws.
- the drive motor 15 is connected via corresponding electrical connections and electrical lines (not shown) to the electrical connection socket 7 on the end plate 9.
- the gear 16 has in the present case a reduction of 4: 1, but other reductions are possible, for. Eg 6: 1 or 10: 1.
- the back-end chains 3.1 and 3.2 emerging from the front panel 8 are connected at their projecting ends to a rigid connecting element 18. Since the first back stiffener chain 3.1 and the second back stiffener chain 3.2 are stiffened in opposite pivot directions, the connection via the rigidly attached to the two back stiffener chains 3.1 and 3.2 connecting element 18 in addition to the axial stiffness necessary for a linear drive 1 also allows the absorption of lateral forces.
- a worm 19 is arranged between the front plate 8 and the bearing plate 12, which is driven via the gear 16 and the drive motor 15.
- the worm 19 is rotatably mounted, wherein both in the bearing plate 12 and in the front plate 8 each have a ball bearing for supporting the worm 19 is provided.
- the worm 19 is constructed in two parts and comprises a worm body 20 and a drive shaft 21 which extends through the sleeve-shaped worm body 20 and is non-rotatably connected thereto, see also FIGS. 9 and 13.
- the worm body 20 is made of a softer material as the drive shaft 21, wherein both plastic with good sliding properties and softer metals, such as brass, can be used.
- the worm 19 has on its lateral surface or its outer periphery a circumferential helical groove 22 with a predetermined Climb up.
- the helical groove 22 has a substantially rectangular cross-section.
- the drive shaft 21 is rotatably connected to the transmission shaft 23.
- the motor axis AM including the transmission axis AG is arranged coaxially with the worm axis AS.
- An offset arrangement is possible, but must meet the space requirements of the linear actuator 1.
- the diameter DS of the screw 19 is relatively large, so that the outer circumference of the screw 19 projects beyond the outer circumference of the drive motor 15, see also FIG. 10. This must be the case at least on the sides of the drive motor 15, the first back stiffener chain 3.1 and the second back-stiffened chain 3.2 are facing.
- the screw 19, or the screw body 20 has a core diameter DK, which is also greater than the corresponding dimension of the drive motor 15 with gear 16 on the two back-rigid chains 3.1 and 3.2 facing sides.
- the two back-stiff chains 3.1 and 3.2 are roller chains, which are constructed of alternating inner chain links 24 and outer chain links 25.
- stiffening tabs 26 are arranged, which are arranged in the two spine chains 3.1 and 3.2 respectively in different pivot directions and ensure that at a substantially straight alignment of the back stiffened chains 3.1 and 3.2 a thrust safely is transferable.
- the inner chain links 24 and the outer chain links 25 are pivotable relative to one another.
- the outer chain links 25 each include the chain pins 27.1 and 27.2.
- each second chain pin 27.1 is made so extended.
- the pitch of the helical groove 22 corresponds approximately to the pitch of the back-rigid chains 3.1 and 3.2. For a good engagement between the worm 19 and the back-rigid chains 3.1 and 3.2, it is sufficient if every second chain pin 27.1 is extended.
- the back-rigid chains 3.1 and 3.2 are aligned such that they are edgewise in the two side parts 13, 14 of the main body 1 1 along. In the present embodiment, therefore, the chain longitudinal axes KL of the first back stiffener chain 3.1 and the second back stiffener chain 3.2 are aligned parallel to the motor axis AM, gear axis AG and screw axis AS. In the engagement region 28 between the two spine chains 3.1, 3.2 and the screw 19 are the pin axes B1 of the chain pin 27.1 substantially exactly perpendicular to the screw axis AS.
- the back-rigid chains 3.1 and 3.2 are deflected once within the housing 2, see also Fig.
- each a chain depot 29 is formed in the region of the two side parts 13 and 14 of the main body 1 1 .
- the chain depots 29 each consist of two mutually parallel chain strands and the associated deflection region. In the retracted state of the linear drive 1 is therefore in the warehouses 29 each have a chain length of the backstreaked chain 3.1 and 3.2, which is greater than 1.5 times the total length of the drive unit of the drive motor 15 and gear 16th
- the deflection of the back-rigid chains 3.1 and 3.2 naturally takes place about the axes of the chain pins in the respective pivoting direction of the back-rigid chains 3.1 and 3.2, so that the back-rigid chains 3.1 and 3.2 substantially in a plane (a plane perpendicular to the plane of FIG. 9 runs on the chain longitudinal axes KL and there is aligned parallel to the motor axis AM, the transmission axis AG and the screw axis AS).
- the two backstay chains 3.1 and 3.2 can also have a backlash in the chain links so that the above illustration is an idealized view.
- the front panel 8 has two window openings 31, through which the two back-rigid chains 3.1, 3.2 can move in and out.
- the side parts 1 3 and 14 of the base body 1 1 have a recessed groove structure from the inside, so that the back-rigid chains 3.1, 3.2 can move within this groove structure.
- the useful structure at the lower end of the housing 2 is designed such that the chain depots 29 form in this recessed groove structure.
- guide rails 32 (see Fig. 8) can be introduced with a low coefficient of friction both at the bottom and on the side walls, which come to rest with the respective underside and the front and rear sides of the back stiffener chains 3.1 and 3.2.
- These guide rails 32 can be configured interchangeable.
- the chain sensor 34 may be connected to the receptacle 7 via a corresponding electrical lead (not shown) to communicate the respective signals.
- an inner chain link 24 is shown in which a positioning element 36 is embedded between the rollers 35 of the inner chain link.
- the positioning element 36 has a plastic holder 37 and a cylindrical permanent magnet 38.
- the plastic holder 37 is adapted to the space between the rollers 35 and resiliently clipped into this space.
- the positioning element 36 is located on an inner chain link 24, which is both a End position and / or an intermediate position of the linear drive 1 can specify.
- the chain sensor 34 detects the permanent magnet 38 and optionally switches off the drive motor 15.
- the linear drive 1 has such a configuration and performance, which make it possible to use the linear drive 1 according to the invention for certain applications as an alternative to hydraulic and pneumatic cylinders.
- the two back-rigid chains 3.1, 3.2 are firmly connected to each other at their on the front plate 8 protruding ends via the connecting element 18, wherein the connecting element 18 is fixed by appropriate securing bolts 30 with the at the end of the backrest chains 3.1, 3.2 protruding inner chain links 24 twisting.
- the connecting element 18 causes a rigid connection of the two back stiffener chains 3.1, 3.2, whereby not only a linear movement of interconnected first and second spine chains 3.1 and 3.2 in the direction of the motor axis AM, the transmission axis AG and the screw axis AS is ensured, but also the absorption of lateral forces and an increase of the movable means of the linear drive 1 according to the invention load is possible.
- Next allows the fixation of the connecting element 18 by means of the securing bolts 30 to the first back stiffener chain 3.1 and the second back stiffener chain 3.2, the application of a bias in the back stiffened chains 3.1, 3.2.
- the linear drive 1 allows, as an alternative to hydraulic or pneumatic cylinders, the application of a thrust force to an element to be moved.
- the connecting element 18 is connected to a correspondingly actuated element, for example stage and lifting devices, but also windows, doors or gates, etc.
- FIGS. 5 to 8 show a substantially retracted position of the linear drive 1.
- the lower end of the linear drive 1 is fastened by means of the joint head 4 with ball joint on an axis provided therefor.
- the joint head 4 with ball joint allows pivoting in two axes, similar to what is known in the arrangement of hydraulic and pneumatic cylinders. Instead of elaborate hydraulic or pneumatic circuits, this electrically operated linear drive 1 only needs to be connected to the power supply and possibly control electronics.
- the drive motor 15 drives with its motor shaft via the reduction of the gear 16, the screw 19 at.
- the back-rigid chains 3.1 and 3.2 are moved out of the housing 2 by means of the engagement of the longer chain pins 27. 1 into the helical groove 22. Accordingly, the element connected to the connecting element 18 is actuated.
- the operation of the drive motor 15 is carried out until the corresponding desired length of the back-rigid chains 3.1, 3.2 is extended. Due to the self-locking of the worm 19, a braking mechanism is not absolutely necessary for the linear drive 1 according to the invention.
- the arrangement of the back stiff chains are not absolutely necessary for the linear drive 1 according to the invention.
- the two spine chains 3.1 and 3.2 can extend in the thrust region in a single plane, so that it is possible to dispense with the thrust region, in particular a deflection and an offset of the spine-resistant chains 3.1, 3.2.
- a deflection takes place rather in the unloaded sections of the back-rigid chains 3.1, 3.2 in the range of the chain depots 29, ie the side of the drive motor 15 and the transmission 16th
- the worm 19 shown in FIG. 11 has a somewhat deeper helical groove 22 in comparison with the embodiment shown in FIGS. 5 to 10.
- the chain pins 27.1 of the first and second spine chains 3.1 and 3.2, which engage with this lower helical groove 22, are designed to be correspondingly longer.
- On the opposite to the outer chain links 25 projecting portion of the chain pin 27.1 three rotatably arranged rollers 39 are positioned and secured by a lock washer 40 respectively.
- the rollers 39 are in contact with the driven flank of the helical groove 22 and act as frictional reduction elements.
- Rollers 39 made of correspondingly low-friction materials, for example plastic or lubricant-impregnated porous materials (eg sintered rollers) are used. As shown in FIGS.
- FIGS. 11 and 12 a subdivision into a plurality of rollers 39 is preferably carried out, so that they also simultaneously serve as an element for slip compensation in order to at least partially compensate for the different speeds within the helical groove 22 as a function of the diameter. As a result, the wear on the rollers 39 can be reduced accordingly.
- the variant shown in FIGS. 11 and 12 can be used as an alternative to the back-rigid chains 3.1 and 3.2 as well as the worm 19 from the preceding embodiment.
- a further alternative of friction and slip engagement of the actuating region of the backstay chains 3.1 and 3.2 with respect to the embodiment of FIGS. 11 and 12 is shown with reference to FIG.
- a single roller 41 is used in this embodiment, which is rotatably mounted on the protruding chain pin 27.1.
- the roller 41 is conical and engages in a corresponding trapezoidal helical groove 22 a.
- the conical roller 41 serves as an element for reducing friction. Due to the conical shape of the roller 41 and the adapted shape of the helical groove 22, this construction also serves as an element for slip compensation, since the speed differences within the helical groove 22 can be compensated via the conical roller 41.
- Fig. 15 an inventive linear actuator 1 is described, in which the first engagement means 19 is a hollow screw and both gear and motor are designed so that the back-rigid chain 3 are passed centrally through the drive motor 15 and the gear 16.
- the axis AH of the hollow screw 19 are designed substantially coaxially to the motor axis AM of the drive motor 15.
- the drive shaft 21 of the drive motor 15 is designed as a hollow shaft.
- the gear 16 is configured so that the back-rigid chain 3 can be passed centrally through the gear 16.
- a central transmission hollow shaft offers.
- the driving gear shaft 23 is configured as a hollow shaft and coupled to the hollow screw 19. In such an embodiment, it is not absolutely necessary to redirect the back-stiff chain 3.
- an operating length of the back-rigid chain 3 is available, which substantially corresponds to the length of the drive motor 15 including the length of the transmission 16 with gear shaft 23. Nevertheless, behind or next to the drive motor 15, a chain depot 29 can still be connected, in which a deflection of the back-rigid chain 3 can take place. Also in this embodiment, it is possible that the back-rigid chain 3 transmits a thrust in both directions. Preferably, however, the thrust force is applied away from the drive motor 15, because in this direction usually the largest operating length is available (s. Thrust direction S in Fig. 6). A suitable guide for the back-rigid chain 3 can then not extend through the hollow screw 19, but also through the gear 16 and the drive motor 15.
- the linear actuator 1 is preferably driven electrically and can replace the concept hydraulic cylinder or pneumatic cylinder. Therefore, slim designs with a thrust force application in the longitudinal direction along the axis AH of the hollow screw 19 and the motor axis AM of the drive motor 15 are to be preferred.
- the drive motor 15 together with the gear 16 and the hollow screw 19 can be accommodated in a common housing 2, at the front end of the actuating region of the back-rigid chain 3 emerges.
- a chain depot 29 can be accommodated within this housing 2, so that there is a structural unit, similar to a hydraulic cylinder or a pneumatic cylinder.
- the housing 2 may at a the actuating region of the back-rigid chain 3 opposite end with a corresponding attachment means, for. B.
- First intervention means e.g. Worm, hollow worm, sprocket etc.
- Second means of engagement eg chain pin, roller, etc.
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017116435.9A DE102017116435A1 (en) | 2017-07-20 | 2017-07-20 | Linear drive with back rigid chain |
PCT/EP2018/069689 WO2019016340A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with rigid-spined chain |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3676470A1 true EP3676470A1 (en) | 2020-07-08 |
Family
ID=63014513
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18746127.2A Pending EP3676470A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with rigid-spined chain |
EP18789562.8A Pending EP3685000A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with anti-back-bend chain |
EP18745869.0A Withdrawn EP3673132A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with rigid-spined chain |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18789562.8A Pending EP3685000A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with anti-back-bend chain |
EP18745869.0A Withdrawn EP3673132A1 (en) | 2017-07-20 | 2018-07-19 | Linear drive with rigid-spined chain |
Country Status (3)
Country | Link |
---|---|
EP (3) | EP3676470A1 (en) |
DE (1) | DE102017116435A1 (en) |
WO (3) | WO2019016333A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020113726A1 (en) | 2020-05-20 | 2021-11-25 | Brose Schließsysteme GmbH & Co. Kommanditgesellschaft | Door opener with push chain |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK135995A (en) * | 1995-12-01 | 1997-06-02 | Rasmussen Kann Ind As | Operator with at least two display elements for opening and closing swivel windows |
DE20221581U1 (en) | 2002-04-09 | 2006-06-08 | Vkr Holding A/S | Actuator for moving object from one position to another has linear drive mechanism, and movable exit guide adjacent chain exit aperture and provided with chain guide surface extending in the exit direction of chain |
ITMI20061026A1 (en) | 2006-05-25 | 2007-11-26 | Autotek Srl | GROUP FOR THE HANDLING OF TENDONS AND SIMILAR PARTICULARLY ON VEHICLES |
JP2011137514A (en) | 2009-12-28 | 2011-07-14 | Tsubakimoto Chain Co | Meshing chain type advancing/retreating operation device |
JP2011144874A (en) | 2010-01-14 | 2011-07-28 | Tsubakimoto Chain Co | Meshing chain type advance/retreat operating device |
DE102014101583A1 (en) * | 2013-09-19 | 2015-03-19 | Hörmann KG Antriebstechnik | DOOR DRIVE DEVICE AND TURNING DOOR THEREWITH |
DE202015100189U1 (en) * | 2015-01-16 | 2015-03-04 | SCHÜCO International KG | Drive device for the rotatable and tiltable arranged on a window frame wings of a window or a door |
-
2017
- 2017-07-20 DE DE102017116435.9A patent/DE102017116435A1/en not_active Withdrawn
-
2018
- 2018-07-19 WO PCT/EP2018/069681 patent/WO2019016333A1/en unknown
- 2018-07-19 WO PCT/EP2018/069686 patent/WO2019016337A1/en unknown
- 2018-07-19 EP EP18746127.2A patent/EP3676470A1/en active Pending
- 2018-07-19 EP EP18789562.8A patent/EP3685000A1/en active Pending
- 2018-07-19 WO PCT/EP2018/069689 patent/WO2019016340A1/en unknown
- 2018-07-19 EP EP18745869.0A patent/EP3673132A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE102017116435A1 (en) | 2019-01-24 |
EP3685000A1 (en) | 2020-07-29 |
WO2019016333A1 (en) | 2019-01-24 |
EP3673132A1 (en) | 2020-07-01 |
WO2019016337A1 (en) | 2019-01-24 |
WO2019016340A1 (en) | 2019-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3405699B1 (en) | Actuator with a rigid-spined chain | |
EP1098423A1 (en) | Electrically powered drive for furniture | |
DE102017205721B4 (en) | Transmission unit for a motor vehicle | |
DE202012001762U1 (en) | Chain drive for an actuator for automatic opening and closing of a ventilation device | |
DE102009004506B4 (en) | Swivel wing blocking device | |
DE10048224A1 (en) | Lock for extendable crane boom has actuator mounted on base tube to operate locking pin drive | |
EP3676470A1 (en) | Linear drive with rigid-spined chain | |
DE1303844C2 (en) | ELECTRIC DRIVE DEVICE FOR ROLLER SHUTTERS, BLINDS OD. DGL | |
DE19853989C1 (en) | Sliding door mechanism for automobile | |
EP3405698B1 (en) | Actuator with hollow worm | |
EP2061677A1 (en) | Lifting loading platform | |
EP3348764B1 (en) | Device for at least partially automatic actuation of a door wing | |
WO2009000240A1 (en) | Activation device for a sliding door | |
EP0887508A1 (en) | Venetian blind with lowerable head assembly | |
DE19755942C2 (en) | Vehicle door | |
EP0989006A1 (en) | Electromechanically controlled window roller blind, particularly for vehicles | |
DE202017102027U1 (en) | Transmission unit for a motor vehicle | |
DE20013658U1 (en) | Radiation protection slat curtain | |
DE19861278C5 (en) | Spindle or worm drive for adjusting devices in motor vehicles | |
EP1094247B1 (en) | Worm drive | |
DE102018205781A1 (en) | driving means | |
DE29808916U1 (en) | Partition wall element with its own drive device | |
DE102005040837B4 (en) | Drive device for at least one movable vehicle part | |
DE10337480B4 (en) | Scissors arrangement, suitable for motorized adjusting, exhibiting or holding wings | |
DE102008032422B4 (en) | Vehicle roof with a drive device for a movable roof part |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200316 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20220117 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230724 |