EP3938308A1 - Fangbremseinrichtung und fangbremsverfahren - Google Patents
Fangbremseinrichtung und fangbremsverfahrenInfo
- Publication number
- EP3938308A1 EP3938308A1 EP20714491.6A EP20714491A EP3938308A1 EP 3938308 A1 EP3938308 A1 EP 3938308A1 EP 20714491 A EP20714491 A EP 20714491A EP 3938308 A1 EP3938308 A1 EP 3938308A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- safety brake
- guide rail
- actuator
- brake device
- braking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
- B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Definitions
- the invention relates to a safety brake device and a safety brake method for an elevator with the features in the preamble of the independent claims.
- Such a safety brake device is from
- WO 2005/044709 A1 known.
- the tensionable and lockable actuating device when released, executes a feed movement and feed force directed along the longitudinal axis of the guide rail, which the
- Safety brake device the actuating device must be brought back by an additional reset device with a motor and a spindle and in response to a separate control signal.
- EP 1 902 993 A1 shows a safety brake device with a single roller-shaped braking element which is arranged only on one side of the guide rail and runs with its roller axis on a pivotable link guide into a wedge gap, the one on one side
- a safety brake device with a one-sided arrangement of a safety restraint and a movable braking element on the guide rail is also from WO 2015/071188 A1
- the movable, wedge-shaped braking element is driven into the restraint by a pivot lever with a force and feed movement directed along the longitudinal axis of the guide rail.
- EP 1 930 282 A1 teaches a special holding and
- Floor stop emergency stop braking and free fall braking is designed.
- it has two separate, structurally identical brake circuits which are arranged on both sides of the guide rail and which depend on the direction of travel
- the identical components and wedge directions of one and the other brake circuit are dimensioned differently and are also arranged in mirror image to one another.
- the invention solves this problem with the features in the main claim.
- the claimed safety brake technology i.e. the
- the safety brake device and the safety brake method have various advantages. They offer greater operational and accident safety and develop a stronger, better and, if necessary, gentle braking effect.
- the braking elements entering the safety restraint can move the actuating device back into its starting position and tension it, in which case they
- the starting position can be the
- the claimed safety brake device can be released from the safety catch position again in a simple manner after the trapping situation has occurred by moving, in particular lifting, the cabin.
- An additional reset device as in WO 2005/044709 A1 is unnecessary.
- the claimed safety brake device has a small footprint due to its compact design and a simple design that is advantageous for safety aspects.
- the claimed safety brake device can also be controlled in a simple manner and, if necessary, can also be automatically actuated and reset in the event of a power failure of the elevator.
- the safety brake device advantageously has a housing with brake elements, preferably wedge-shaped brake shoes, arranged on both sides of the guide rail and movable along the guide rail, as well as a
- the constraint can be rigid or resilient.
- the safety brake device also has a tensionable and lockable actuation device for the braking elements, the actuation device on a
- a trigger event can e.g. a detected excessive speed and / or
- the braking elements Due to the resulting frictional contact on the guide rail, the braking elements are carried along and enter the restraint. They move the
- Actuating device back into its original position and tension it, the actuating device can be locked again in this starting position.
- the brake elements can be moved back by friction on the guide rail and their own weight and into their
- the actuating device can develop a feed force and feed movement directed exclusively or predominantly transversely to the longitudinal axis of the guide rail.
- An additional feed force and feed movement directed along the guide rail can be
- the actuating device can be a tensionable
- the locking device can be connected to a trigger of the safety brake device.
- the tensionable feed device moves the braking elements on both sides in the aforementioned manner transversely to the longitudinal axis of the guide rail and presses them against the guide rail with a likewise directed tensioning force.
- the locking device can lock or block the delivery device in the tensioned starting position.
- the braking elements are out of engagement with the
- the locking device In response to a triggering event, the locking device releases the delivery device, which presses the braking elements against the guide rail in the aforementioned manner and the safety brake operation is carried out.
- the triggering event can be of any nature. It can be an electrical or mechanical control signal, a power failure of the elevator or the like. be.
- the locking device can
- the safety brake device can have a guide device for the braking elements.
- Acting by the feed device in a predetermined manner can be brought up to the guide rail and along the guide rail into the restraint.
- the guide device can be designed and arranged differently.
- the guide device can be arranged on the delivery device.
- the braking elements are at the
- the guide device can also be arranged between the housing and the braking elements. This can, for example, a link guide, a pivot guide or the like. be.
- the guide device can be connected directly or indirectly to the housing.
- the constraint can be done in different ways
- Training as a wedge wedge offers particular advantages.
- the constraint is on both sides of the
- the housing can also be floating to a limited extent transversely to the guide rail
- the restraint can be between the braking elements and one or more support means arranged on the housing
- the one or more support means can be rigidly arranged and attached to the housing. They can be made massive and highly resilient.
- the one or more support means can be rigidly arranged and attached to the housing. They can be made massive and highly resilient.
- Support means and a connecting housing part can form a stable wedge yoke.
- a possibly one-piece and e.g. Yoke-like support means can also form the housing.
- the one or more support means can alternatively be movably arranged on the housing.
- the mobility can exist in particular in the direction transverse to the longitudinal axis of the guide rail. That or the moving ones Proppants can be of a particularly stiff type
- the spring arrangement allows the supporting means (s) to move slightly when the braking elements enter the restraint. This has the advantage of being gradual
- the spring arrangement which is tensioned when moving into the catch position, develops a high tension force, which ensures the braking and frictional connection.
- the one or more proppants can also be used as
- Be formed spring arrangement This can be held and guided on the housing, possibly in a floating position.
- the spring arrangement can be designed differently. You can e.g. are formed by individual springs which each act on a support means and are supported on the housing.
- the spring arrangement can also be a
- clip-like or ring-like spring shape e.g. as a C-spring. It is open on one side and can
- One embodiment of a wedge constraint can have interacting wedge surfaces on a braking element on the one hand and on a support means of the housing or on the infeed device on the other hand.
- the feed device can have an actuator that can be brought into contact with a braking element and a clamping means.
- each of the movable braking elements can be assigned its own actuator and its own clamping means.
- a common actuator and a common clamping device for the braking elements on both sides are possible.
- the clamping device acts on the actuator.
- the tensioning means and the actuator may be separate parts, the Z usammenwort. However, they can also be combined with one another to form an integral part and a structural and functional unit.
- the structural and functional unit is
- the clamping means or its energy storage of such a structural and functional unit can e.g. as a torsion spring, as a clamped leaf spring or the like. be trained.
- the actuator can be formed by a protruding arm of the clamping device.
- the clamping device can also guide the actuator.
- the actuator can be an action point for the
- Locking device in particular the actuator e.g. Magnet.
- the support point of e.g. prestressed
- the clamping device is distanced from the point of action.
- the clamping means can be changeable or adjustable.
- the actuator can be movably arranged on the housing transversely to the longitudinal axis of the guide rail. He can do one
- the delivery device can have a corresponding guide for the actuator. This can for example be formed and arranged between the actuator and the housing. In the case of the structural and functional unit, the clamping device can guide the actuator. A separate tour not necessary.
- the actuator can be arranged on the rear side of the braking element facing away from the guide rail. He can choose between an associated braking element and the
- the actuator is forced back into its own
- the actuator can be loose or rigid
- a parallel-walled actuator design is favorable
- the actuator is e.g. clamped between the wedge-shaped support means and the back of the braking element and transmits the clamping forces for the safety braking without loss.
- the infeed device can have the wedge surface.
- the actuator can e.g. be designed as a wedge body on which the with the braking element
- a rigid support means can be an adapted recess with support elements
- a movable support means can be used as
- the braking element can slide in the longitudinal direction of the rail along the guide rail and the actuator and into the
- the actuator can have a suitable lubricant for this purpose.
- the braking element can also be guided on the actuator.
- the delivery device can have said guide for the actuator. This can be designed in different ways. It can be a linear guide, for example. Alternatively, a rotary guide or a combination of rotary and linear guides is also possible.
- the guide can be arranged on the housing. It can also be arranged on a rigid or movable support means.
- the clamping means of the feed device has a
- the energy store can e.g. be designed as a spring, in particular a linear compression spring or torsion spring.
- the energy store can also potential energy of the actuator, in particular its wedge body, or a
- the energy store can be activated as a
- Drive element e.g. as a fluidic or motorized drive element, as a piezo element or the like. be trained.
- Such an activatable energy store can be any activatable energy store.
- the locking device can hold the tensionable delivery device in the starting position. You can do this
- the collapsed safety brake device can be released again by a simple movement of the car thanks to the locking device.
- the locking device can have an actuator acting on the delivery device.
- the actuator can be used directly or indirectly, e.g. act on the delivery device via a locking means. With a direct
- the actuator can act e.g. be advantageously designed as an electromagnet.
- the actuator can be on
- an intermediate locking means e.g. a locking mechanism
- the holding and locking force can be provided by the locking means e.g. be applied by form fit.
- the attacking actuator be small.
- the actuator can have a significantly reduced energy consumption.
- the locking device can be one or more
- Components of the delivery device act directly or indirectly.
- a blocking effect is e.g. on the
- the actuator can be used with the trigger
- Be connected safety brake device It can be controlled by this trigger.
- the actuator can on the other hand, carry out an emergency release in the event of a power failure in the elevator. This happens automatically if the elevator is designed as an electromagnet if there is a power failure.
- the actuator can on the other hand also with a
- Figure 1 a schematic representation of a
- FIG. 1 to 4 the safety brake device of Figure 1 in different operating positions
- Figure 5 two variants of the safety brake device of Figure 1 with a construction
- the invention relates to a safety brake device (4) for an elevator (1) and a safety brake method. It also concerns one with a safety brake device (4)
- the elevator (1) has a car (2), at least one guide rail (3) and a safety brake device (4).
- the elevator (1) also has a drive for the car (2) and possibly a counterweight.
- the elevator (1) and the car (2) are only indicated in FIG.
- the guide rail (3) is shown in Figure 1 in a front view and below in a cross section.
- the safety brake device (4) is arranged individually or several times on the car (2). It can be arranged in any suitable position, for example on the car roof, on a side of the car facing the guide rail (3) or on or below the car floor and on the roller guide or the like. with which the cabin (2) is guided on the guide rail (3). Additionally or
- the guide rail (3) has an upright, preferably vertical, orientation and has a longitudinal axis (15).
- the guide rail (3) can e.g. the T-shape shown in cross section with a web (13) and one for
- Figure 1 and 5 to 10 show different embodiments of the safety brake device (4).
- the safety brake device (4) of Figure 1 is shown in different operating positions.
- the safety brake device (4) is used to automatically brake the car (2) in special operating situations, in particular emergencies, and bring it to a standstill, especially when it is moving downwards in the direction of travel (32). Such a special operating situation occurs for example, if the car (2) is moving at a greater speed and / or acceleration than intended, if the energy supply,
- the safety brake device (4) can be acted upon and controlled by a trigger (12) shown schematically in FIG.
- the trigger can, if necessary, detect the said special operating situation.
- the safety brake device (4) shown in Figure 1 has a housing (5) which is connected in a suitable manner to the car (2) or the counterweight in a load-bearing manner.
- the housing (2) can be rigid or relative to
- Guide rail (3) be arranged floating. A swimming movement is particularly transverse to
- Two or more brake elements (6, 7) are arranged in the housing (5) and are arranged on both sides of the guide rail (3), in particular on both sides of its web (13).
- the braking elements (6,7) can be transverse to
- a guide device (18) can be present between the housing (5) and the braking elements (6, 7). This can have a curved shape with a guide section directed transversely to the longitudinal axis (15) of the guide rail (3) and an adjoining guide section directed along the longitudinal axis (15).
- Guide device (18) is e.g. from one
- a braking element (6,7) is located on both sides of the guide rail (3) or the web (13).
- the number of braking elements (6, 7) arranged on both sides can also be higher.
- the braking elements (6,7) are shown in FIG.
- the brake shoes (19) can have a wedge shape and can be designed as wedge shoes. They each have a wedge surface (20) on their rear side facing away from the guide rail (3) or the web (13). This is inclined towards the guide rail (3), wherein the braking element (6,7) tapers upwards.
- Braking elements (6,7) is aligned parallel to the guide rail (13) or to the web (13) and its side surfaces. It forms a friction-active pressure surface (21) and braking surface.
- the safety brake device (4) has a two-sided
- the constraint (8) is as
- FIGS. 1 to 6 it is formed by one or more support means (16) which are arranged and supported in the housing (5) on both sides of the guide rail (3) or the web (13).
- the one or more support means (16) which are arranged and supported in the housing (5) on both sides of the guide rail (3) or the web (13).
- Support means (16) are rigid and fixed to the housing. They are rigidly arranged and attached to the housing (5) or can be formed by the housing (5).
- the catch (8) is rigid. If necessary, it can float with the housing (5). That or the support means (16) point at their the
- the front side facing the guide rail (3) has a wedge surface (17) which extends upwards and is inclined in the direction of the guide rail (3).
- the two wedge surfaces (17) on both sides form a funnel-shaped wedge opening into which the braking elements (6, 7) can dip.
- the wedge surfaces (17, 20) on the support means (s) (16) and the braking elements (6, 7) are matched to one another in terms of their size and angular inclination and work together in such a way that the ones that plunge in when triggered
- Brake elements (6,7) are pressed laterally against the guide rail (3) or the web (13) through the narrowing of the wedge and high braking forces in the
- the immersion depth of the braking elements (6, 7) in the housing (5) can be set and limited by means of adjustable stops (not shown).
- one-piece deformation-resistant yoke connected, which laterally encompasses the guide rail (3).
- they can be fastened and supported individually and in a suitable manner in the housing (5).
- the safety brake device (4) has a tensionable or lockable actuating device (9) for the braking elements (6, 7).
- the actuating device (9) is connected to the trigger (12) and can be controlled by it.
- the actuator (9) is of this type
- the actuating device (9) is of the in the
- the actuating device (9) can be locked again immediately or with a time delay.
- the aforementioned alignment transverse to the longitudinal axis (15) of the guide rail (3) includes a vertical and an oblique alignment.
- the oblique alignment preferably has a predominant directional component perpendicular to the longitudinal axis (15).
- the braking elements (6, 7) come free from the restraint (8) and can be moved downwards by friction and their own weight. Here they can be guided through the guide device (18) and in their downward movement by a stop or the like be limited.
- Actuating device (9) directed exclusively or predominantly transversely to the longitudinal axis (15)
- the actuating device (9) has a tensionable
- the locking device (11) is connected to the trigger (12).
- Locking devices (11) can each be designed in different ways.
- Figures 1 and 5 show different embodiments for this. Other modifications are also possible.
- the delivery device (10) has a with a
- Brake element (6,7) which can be brought into contact with an actuator (23) and a clamping means (27).
- the delivery device (10) can e.g. the multiple arrangement shown of actuators (23) and arranged on both sides of the guide rail (3)
- Guide rail (3) acts and the two-sided
- the actuator (23) and the clamping means (27) are each arranged separately from one another.
- the tensioning means (27) acts on the actuator (23) preferably on its rear side.
- the actuator (23) in turn acts on an associated one, and preferably on its front side
- the infeed device (10) has at least one actuator (23) and at least one tensioning means (27) on both sides of the guide rail (3).
- the clamping means (27) has at least one
- Guide rail (3) directed alignment and is arranged and guided horizontally in the housing (5).
- Clamping means (27) can also have an adjusting means (29) for the energy store (28), with which the clamping force can be adjusted.
- the actuator (23) is arranged on the rear side of the at least one associated braking element (6, 7) facing away from the guide rail (3). It is located between the brake element or elements (6,7) and the
- the actuator (23) is shown in Figure 1 e.g. as a flat transfer plate (24)
- the actuator (23) is e.g. parallel to the wedge surfaces
- the braking elements (6, 7) are then moved along the longitudinal axis (15) in the direction of the restraint (8), with their rear side sliding along the actuator (23).
- the front of the actuator (23) can have a lubricant (25) for the associated brake element (s) (6, 7)
- This can e.g. be a low friction coating, a roll pad or the like.
- the delivery device (10) can have a guide (26) for the actuator (23). This is shown in Figure 1 e.g. as
- Linear guide formed, which is oriented transversely to the longitudinal axis (15) and the actuator (23) in said
- the guide (26) can be designed and arranged between the actuator (23) and the housing (5) or the support means (16).
- the locking device (11) has in the variant of
- Infeed device (10) acts. He acts e.g. on the actuator (23) or the transmission plate (24).
- the action on the actuator (23) or the transmission plate (24) can be direct.
- the locking device (11) can e.g. the multiple arrangement shown from both sides of the
- Feed device (10) acted upon on both sides.
- the two-sided actuators (30) are in
- the actuators (23) or transmission plates (24) are angled at the upper end and here have a vertical orientation that is parallel to the active side of the respective associated actuator (30).
- the actuators (30) are in the variant of Figure 1 as
- the actuators (30) are connected to the trigger (12).
- Figure 2 to 4 illustrate a safety brake process
- Figure 2 shows an initial position in which the
- Actuators (23) are powered by the locking device (11) and its actuators (30), in particular the
- the braking elements on both sides (6,7) are in the
- Infeed device (10) and its actuators (23) are free, these under the action of the energy storage device (28) in
- Guide rail (3) are moved up and into the catch (8). During this movement they are also guided by the guide device (18). In the catch position, the braking elements (6, 7) are pressed against the guide rail (3) with great wedge force and brake them
- Cabin movement preferably to a standstill.
- the two-sided braking elements (6, 7) In the catching position, the two-sided braking elements (6, 7) have the delivery device (10) and their actuators (23) back into those shown in FIG. 2 due to their wedge shape
- Clamping device (27) has been tightened again.
- the locking device (11) can lock the delivery device (10) again, the actuators (30) acting directly on the actuators (23) and these with magnetic force in the
- the guide rail (3) is free again and can slide along the actuators (23) and the guide rail (3) down into their starting position according to FIG. If the safety brake device (4) is arranged on the counterweight, the above explanations apply with appropriate adaptation.
- FIG. 5 shows two variants of the safety brake device (4), one of which is shown in the left half of the picture and the other in the right half of the picture.
- the second variant in the right half of Figure 5 shows a modification compared to Figure 1 with respect to the design of the locking device (11).
- the locking device (11) in this case has a locking means (31) which interacts with the delivery device (10), in particular with the associated actuator (23), and holds it in place.
- the locking means (31) is designed, for example, as a movable, in particular pivotable, catch hook which encompasses and holds the upper end of the actuator (23) or the transmission plate (24) in a form-fitting manner.
- a different training e.g. as vertical and
- movable e.g. bolt-shaped, latch or the like. possible.
- the actuator (30) acts indirectly on the delivery device (10), in particular its associated actuator (23).
- the actuator (30) acts on the locking means (31) together with a spring or some other triggering means.
- the actuator (30) acts against the triggering means and holds the locking means (31) in the locking division.
- the actuator (30) When triggered, the actuator (30) releases the locking means (31), which in turn releases the delivery device (10) under the action of the release.
- the actuator (30) can be attached to the housing (5) or to a e.g. stare
- Support means (16) may be arranged.
- the actuator (30) can also be designed as an electromagnet.
- Locking means (31), the actuator (30) can be weaker than the directly acting actuator (30) of Figure 1 and requires less electrical energy for its
- the actuator (30) can be arranged further away from the adjacent braking element (6, 7) and has one
- Locking means (31) can also be used with the other
- Embodiments are used.
- the actuator (23) and the tensioning means (27) are connected to form a structural and functional unit (37).
- the energy storage device (28) is a torsion spring
- the actuator (23) being formed by an upwardly projecting arm of e.g. arranged lying down
- Torsion spring is formed.
- the torsion spring which is suitably rotatably held or mounted on the housing (5) and supported on a support point (38), also guides the actuator (23).
- Embodiments of existing and e.g. linear guide (26) can be omitted.
- the torsion spring is e.g. arranged below the associated braking element (6,7), the actuator (30) being arranged above said braking element (6,7) as in the other embodiment variants and on the free end of the actuator (23) on a
- Action point (39) acts directly or indirectly.
- the tensioning means (27) is pre-tensioned and tries to press the actuator (23) and the braking element (6,7) against the guide rail (3).
- FIG. 11 shows a variant of the structural and functional unit (37) comprising the actuator (23) and
- the structural and functional unit (37) is arranged here as one in the housing (5) and in the
- Initial position biased leaf spring formed.
- the preferred curved leaf spring forms both that
- the leaf spring can be clamped and fixed in the lower housing area at a support point (38).
- the point of action (39) for the locking device (11), in particular the magnet, is located at the upper end of the flat spring or the actuator (23).
- the actuator (23) is designed as a transmission plate (24) in the manner described above.
- Figure 6 shows a further variant with an actuator (23) which has a wedge body (24 ') with an eccentric
- the guide (26) has pivot bearing which forms the guide (26) in the form of a pivot guide.
- the guide (26) is arranged between the housing (5) and the wedge body (24 ').
- the wedge body (24 ') has on its front side facing the guide rail (3) a wedge surface (24 ") which, together with the wedge surface (20) of the respectively associated braking element (6, 7), forms the said catch (8)
- Guide (18) can be designed in the manner described above.
- the lubricant (25) can be applied to the wedge surface (24 ")
- the wedge body (24 ') tapers downwards. It can have planar surfaces or walls aligned at right angles to one another on the back and the top.
- the support element (16) has a recess (17 ') instead of the wedge surface (17), which receives and supports the actuator (23) and its wedge body (24') in the rest or starting position and in the catching position.
- FIG. 6 shows both positions, the catch position being shown in dashed lines.
- the e.g. Step-like deepened recess (17 ') can have support elements, in particular flat support surfaces and / or support projections. She can in her
- the actuators (30) can, for example, each be arranged at the lower end of the wedge body (24 ') and the recess (17').
- the actuators (30) at the wedge end are for
- the energy store (28) can store the potential energy of the actuator (23), in particular its wedge body (24 '). If necessary, it can also have a spring.
- the asymmetrical suspension of the wedge body (24 ') supports the infeed movement by gravity when it is triggered.
- Figure 6 shows this in the left half of the picture.
- the guide (26) can be formed by a linear guide on the top and, if necessary, the bottom of the wedge body (24 ').
- the linear guide can be directed transversely to the guide rail (3) or its longitudinal axis (15).
- the guide (26) is arranged at the lower end of the actuator (23) and in the housing (5). It is a swivel guide
- the actuator (23) has a side
- angled arm on which the clamping means (27) engages This can e.g. have a spring as an energy store (28).
- the spring presses the pivotable actuator (23) in the direction of the guide rail (3).
- the locking device (11) acts on the upper end of the actuator (23) or the transmission plate (24).
- Locking device (11) has e.g. the above
- Locking means (31) an actuator (30), in particular a magnet, can act directly.
- Pivot bearings are at the opposite ends of the actuator (23) arranged and spaced relatively far apart.
- the locking device (11) has a larger lever than the clamping means (27) and can be adjusted accordingly
- FIGS. 7 and 8 show a further variant of the
- FIG. 8 shows a plan view according to arrow VIII of FIG.
- Changes relate in particular to the design of the one or more support means (16), the locking device (11), the feed device (10), in particular its one or more actuators (23) as well as the clamping means (17), and the guide device (18).
- the one or more actuators (23) are in a similar manner as in Figure 6 as a wedge body (24 ') with a for
- the guide (26) can e.g. be designed as a linear guide with transverse alignment to the longitudinal axis (15). You can e.g. be formed and arranged between the top and bottom of the wedge body (24 ') and the housing (5).
- the guide (18) for the braking elements (6,7), in particular wedge-shaped brake shoes (19), can be between the
- Infeed device (10) and the respective braking element (6,7) can be arranged. In FIGS. 7 and 8, it is arranged and designed between the wedge surfaces (20, 24 ").
- Guide device (18) can, for example, according to the plan view of Figure 8 be designed as an undercut groove guide.
- the guide (18) allows the respective braking element (6, 7) to slide along the wedge surface (24 ′′) of the associated wedge body (24 ') and prevents it from becoming detached in the transverse direction ) held on the respective wedge body (24 ') and taken along during its feed and return movement.
- the one or more support means (16) are at the
- Variant of Figure 7 and 8 movably arranged on the housing (5). You can move transversely to the longitudinal axis (15) of the guide rail (3). In particular, you can evade in this direction. The movement path can be very small.
- the one or more support means (16) are acted upon by a spring arrangement (33) transversely to the longitudinal axis (15) of the guide rail (3).
- Support means (16) designed as a spring arrangement (33), here in the form of a C-spring.
- the spring arrangement (33) is arranged horizontally and, according to FIG. 8, engages laterally around the guide rail (3).
- At the free spring ends e.g. arranged block-like contact elements, on which the respective wedge body (24 ') in the starting and
- the spring arrangement (33) can e.g. be designed as a lamellar spring or in some other way. The one shown
- Lamellar spring has a package of several flat and curved, resilient C-lamellae stacked on top of one another, each with high spring stiffness.
- Slats can be arranged and connected on a curved beam.
- the spring arrangement (33) can be used to form a resilient catch (8) that dampens the braking pressure.
- the spring arrangement (33) is initially widened or spread apart from its starting position. The resulting
- the safety brake device (4) and the braking elements (6, 7) return the spring arrangement (33) to its starting position.
- the spring arrangement (33) is attached to the housing (5) in a suitable manner, e.g. floating, held and supported. This can be done by means of one or more holders (36), e.g. Are designed like bolts. They make that possible
- the tensioning device (17) has also been changed compared to the exemplary embodiments described above.
- it has an energy store (28) in the form of a spring.
- This can for example also be designed as a lamellar spring and can also have a C-shape. It can also be connected to the holders (36).
- the spring (28) engages with its free spring ends on the respectively assigned wedge body (24 '). It can be firmly or loosely connected to the respective wedge body (24 ').
- the spring (28) and the spring arrangement (33) can have the same direction of action.
- the spring (28) has a lower spring stiffness than the spring arrangement (33). She presses like in the
- the spring (28) can also be used as a lamellar spring
- the spring (28) can e.g. be arranged on the spring arrangement (33) or integrated into it.
- the locking device (11) can also be designed in a different manner. In the illustration of FIGS. 7 and 8, the locking device (11) has one or more
- Actuators (30) which act directly or indirectly via a locking means (31) on the respectively assigned actuator (23) or wedge body (24 ').
- the locking device (11) can have a certain amount of play and can accommodate the evasive movements of the spring arrangement (33) when the braking elements (6, 7) are moved in and out of the
- the locking device (11) can act on the tensioning means (27) and lock and block it in the tensioned starting position.
- the actuator (30) and possibly a locking means (31) can be positioned between the tensioning means (27), in particular the spring accumulator (8), and the housing (5) or the spring arrangement (33).
- the actuator or actuators (30) can follow the aforementioned spring movements of the spring arrangement (33). At the same time, this can also
- Clamping means (27) follow these spring movements. This applies in particular to the spring movement between the catch position and the starting position. With such an assignment of the locking device (11) to the housing (5) or the spring arrangement (33), the actuators (23) or
- Tensioning means (27) in the starting position also hold the actuators (23) or wedge bodies (24 ') in the starting position.
- Safety brake device which differ in several features from the embodiments described above.
- the one or more support means (16) are each movably arranged on the housing or frame (5). They are each acted upon by a spring arrangement (33), which has a high level of spring stiffness and allows the support means (16) to yield slightly when the braking element (6, 7) moves into the restraint (8).
- the support means (16) can give way in the transverse direction to the longitudinal axis (15) of the guide rail (3), whereby the respective spring arrangement (33) is tensioned and a high tension and spring force that maintains the braking and holding effect of the safety brake device (4) developed.
- Guide rail (3) movable support means (16) with a wedge surface ((17) are arranged, each of which is movably guided transversely to the axis (15) by means of a linear guide (35) on the housing (5), for example each acted upon by a spring arrangement (33) and pressed against the guide rail (3).
- (33) can e.g. are formed by strong compression springs.
- the spring arrangements (33) are supported on the housing (5). Arrows indicate the direction of movement of the support means (16).
- Figure 9 shows in the right half of the picture
- Wedge surface (17) is shown in dashed lines. In the left half of Figure 7 is the after triggering the
- Actuator (30) assumed delivery position with the e.g. linearly displaced actuator (23) and the contact of the
- Brake element (6) shown with the guide rail (3).
- the actuator (23) of the delivery device (10) is guided on the respective support means (16) by means of a guide device (26).
- the actuator (23) has a transmission profile (34) for this purpose, which e.g. the associated support means (16) and its front edge can laterally encompass.
- the guide (26) can be positioned between the actuator (23) or transmission profile
- the support means (16) have said wedge surface (17) on their front side facing the guide rail (3).
- the respective actuator (23) can lie flat against this wedge surface (17) in the rest position and the catch position.
- the actuator (23) or the transmission profile (34) has a correspondingly designed front side which is arranged parallel to the wedge surface (17). Arrows illustrate the movement between the actuator (23) and the associated one
- the tensioning means (27) is arranged between the respective support means (16) and the actuator (23), in particular its transmission profile (34).
- the energy store (28) is formed here, for example, by a spring.
- the energy store (28) can be arranged in or on the respective support means (16).
- the guide device (18) can e.g. be designed as an undercut groove guide.
- a friction-reducing lubricant (25) can be arranged between the transmission profile (34) and the respective braking element (6, 7).
- the braking elements (6,7) are as in the previous ones
- the locking device (11) comprises actuators (30), e.g.
- Electromagnets or the like to the immediate or
- the actuators (30) are arranged on the support means (16).
- the spring arrangement (33) can, for example, as
- Outer sides of the support means (16) be connected. This can be a fixed connection, the spring arrangement (33) holding the support means (16) floating in the housing (5).
- the spring arrangement (33) can be guided and held on the housing (5) in a suitable manner, e.g. in the apex of their arch shape.
- the spring arrangement (33) can e.g. be designed as a lamellar spring or in some other way.
- the guide (35) present in FIG. 9 can be omitted.
- Support means (16) arranged to be movable.
- the guide (26) is between the actuators (23), in particular
- Housing plates be arranged.
- the tensioning device (27) is also designed differently in the variant of FIG.
- the energy store (28) is e.g. of a bracket-like or
- the energy store (28) can be separated from the
- Spring arrangement (33) be arranged. Alternatively, it can be integrated there.
- the locking device (11) and its actuators (30) are also arranged on the support means (16) in the variant of FIG. As in FIG. 9, they can act directly on the respective rear side of the transmission profiles (34) and hold them against the clamping means (27) in the rest position. Alternatively, indirect action is possible via a locking means (31).
- the catching device (4) can be connected in a suitable manner to the cabin (2) and / or the counterweight, rigidly or possibly floatingly. It is also connected to a trigger (12), not shown.
- the one or more actuators (30) can be arranged below the braking elements (6, 7) and inside or outside the housing (5).
- the third variant in the left half of FIG. 5 can be reversed accordingly.
- the actuators (30) can instead of the ones shown
- Electromagnets can be designed in a different way. It can e.g. to electrically energized and thereby expanding actuators, e.g. Piezo elements or the like. , act. In the event of a power failure in the elevator (1), these can be in
- the energy stores (28) of the clamping means (27) can be designed as drive elements that are activated in the event of a trigger and only then develop a feed force (F) and feed movement and drive the actuator (23).
- the energy stores (28) can be equipped with an emergency supply device (not shown),
- an emergency power device which shows e.g. a battery or an accumulator and monitors the energy supply of the elevator (1) with a detection and control device. If excessive speed or excessive acceleration is detected, the is used as the drive element via the battery or accumulator
- the drive element can also be driven by the trigger (12) with its power supply can be performed by the power supply of the elevator (1) or possibly, also the emergency P ower supply.
- This design would have the advantage that a power failure does not lead directly to an undesired application of the safety brake.
- the guide (26) can instead of the straight guide or pivot guide shown as a combined pivot and
- the actuator (23) can e.g. be held and guided rotatably on the underside or elsewhere.
- the guide (26) does not have to be either
- a lifting means can be provided which additionally acts on the braking elements (6, 7) and moves them along the guide rail (3) in the direction of the safety restraint (8), possibly only with a short pulse.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202019101479.2U DE202019101479U1 (de) | 2019-03-15 | 2019-03-15 | Fangbremseinrichtung |
| PCT/EP2020/056899 WO2020187757A1 (de) | 2019-03-15 | 2020-03-13 | Fangbremseinrichtung und fangbremsverfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3938308A1 true EP3938308A1 (de) | 2022-01-19 |
| EP3938308B1 EP3938308B1 (de) | 2023-05-03 |
Family
ID=70008463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20714491.6A Active EP3938308B1 (de) | 2019-03-15 | 2020-03-13 | Fangbremseinrichtung und fangbremsverfahren |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11884514B2 (de) |
| EP (1) | EP3938308B1 (de) |
| CN (1) | CN113574001B (de) |
| AU (1) | AU2020242986B2 (de) |
| DE (1) | DE202019101479U1 (de) |
| WO (1) | WO2020187757A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3674248B1 (de) * | 2018-12-31 | 2022-09-07 | KONE Corporation | Aufzugkabinenfeststellbremse |
| EP3736238B1 (de) * | 2019-05-08 | 2023-01-11 | Otis Elevator Company | Montagevorrichtung für sicherheitsbremse |
| US11891275B2 (en) * | 2019-12-12 | 2024-02-06 | Inventio Ag | Brake device, e.g. with a wedge-shaped brake element, for braking a travelling body that can be moved in a guided manner along a guide rail in a movement direction |
| EP3932844A1 (de) * | 2020-07-01 | 2022-01-05 | KONE Corporation | Fangbremse, aufzugsanlage und verfahren zum betreiben eines sicherheitsgetriebes einer aufzugsanlage |
| EP4512760A1 (de) * | 2021-11-04 | 2025-02-26 | Otis Elevator Company | Reibungsloser elektronischer sicherheitsaktuator |
| EP4574731A1 (de) * | 2023-12-21 | 2025-06-25 | Otis Elevator Company | Aufzugssicherheitsvorrichtung |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2716467A (en) | 1952-10-07 | 1955-08-30 | Watson Elevator Company Inc | Elevator car flexible guide clamp safety |
| PT1294631E (pt) | 2000-05-25 | 2004-11-30 | Inventio Ag | Dispositivo de frenagem para um ascensor |
| ATE273915T1 (de) | 2000-06-22 | 2004-09-15 | Inventio Ag | Bremsfangvorrichtung mit anpassung der bremskraft für aufzug |
| DE60335421D1 (de) * | 2003-10-07 | 2011-01-27 | Otis Elevator Co | Fernrückstellbare seillose not-stopp-vorrichtung für einen aufzug |
| DE102006043890A1 (de) * | 2006-09-19 | 2008-03-27 | Wittur Ag | Selbstrückstellmechanismus für eine Bremsfangeinrichtung Typ BSG |
| EP2084095B1 (de) * | 2006-11-08 | 2011-04-06 | Otis Elevator Company | Aufzugbremsvorrichtung |
| MY143851A (en) * | 2006-12-05 | 2011-07-15 | Inventio Ag | Braking device for holding and braking a lift cabin in a lift facility |
| BR112012023034A8 (pt) | 2010-03-18 | 2017-10-17 | Inventio Ag | atuador para dispositivo de frenagem e sistema de elevador |
| CN102092617B (zh) * | 2011-01-11 | 2012-11-28 | 西安交通大学苏州研究院 | 一种垂直升降设备的防坠装置 |
| JP5345183B2 (ja) | 2011-07-14 | 2013-11-20 | 株式会社日立製作所 | エレベータの非常止め装置 |
| US9856112B1 (en) * | 2011-10-20 | 2018-01-02 | Anthony J. Cirone | Fall arresting system for vertically oriented belt driven linear actuators |
| WO2013070234A1 (en) | 2011-11-11 | 2013-05-16 | Otis Elevator Company | Elevator braking device with automatic reset feature |
| CN102602772B (zh) * | 2012-03-27 | 2014-04-16 | 中国矿业大学 | 一种矿用高速电梯防坠制动缓冲系统 |
| AU2013351430B2 (en) * | 2012-11-27 | 2016-12-22 | Inventio Ag | Catching device for a traveling body of an elevator system |
| PL3068719T3 (pl) | 2013-11-15 | 2019-07-31 | Inventio Ag | Chwytacz dla dźwigu |
| WO2015126863A2 (en) | 2014-02-21 | 2015-08-27 | Wurtec Elevator Products & Services | False car device |
| DE102014004356A1 (de) * | 2014-03-27 | 2015-10-01 | Thyssenkrupp Elevator Ag | Bremseinrichtung für einen Fahrkorb einer Aufzuganlage |
| DE102016200593A1 (de) | 2016-01-19 | 2017-07-20 | Thyssenkrupp Ag | Bremseinrichtung für einen Fahrkorb eines Aufzugsystems |
| CN109019239B (zh) | 2017-06-12 | 2020-09-22 | 上海三菱电梯有限公司 | 电梯制动控制装置 |
| CN109019229B (zh) | 2017-06-12 | 2020-09-22 | 上海三菱电梯有限公司 | 电梯制动控制装置及电梯 |
| CN109384118B (zh) | 2017-08-08 | 2021-03-16 | 上海三菱电梯有限公司 | 用于电梯制动控制装置的故障检测方法 |
| WO2021099562A1 (de) * | 2019-11-21 | 2021-05-27 | Inventio Ag | Einfach rückstellbare elektronische fangvorrichtung |
| US11891275B2 (en) * | 2019-12-12 | 2024-02-06 | Inventio Ag | Brake device, e.g. with a wedge-shaped brake element, for braking a travelling body that can be moved in a guided manner along a guide rail in a movement direction |
-
2019
- 2019-03-15 DE DE202019101479.2U patent/DE202019101479U1/de active Active
-
2020
- 2020-03-13 AU AU2020242986A patent/AU2020242986B2/en active Active
- 2020-03-13 WO PCT/EP2020/056899 patent/WO2020187757A1/de not_active Ceased
- 2020-03-13 CN CN202080021248.XA patent/CN113574001B/zh active Active
- 2020-03-13 EP EP20714491.6A patent/EP3938308B1/de active Active
- 2020-03-13 US US17/593,211 patent/US11884514B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020187757A1 (de) | 2020-09-24 |
| AU2020242986A1 (en) | 2021-10-07 |
| US20220177272A1 (en) | 2022-06-09 |
| AU2020242986B2 (en) | 2023-07-27 |
| CN113574001B (zh) | 2023-01-20 |
| CN113574001A (zh) | 2021-10-29 |
| US11884514B2 (en) | 2024-01-30 |
| DE202019101479U1 (de) | 2020-06-18 |
| BR112021015242A2 (pt) | 2021-10-05 |
| EP3938308B1 (de) | 2023-05-03 |
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