WO2010102979A1 - Restoring device for motor-driven door drives - Google Patents

Restoring device for motor-driven door drives

Info

Publication number
WO2010102979A1
WO2010102979A1 PCT/EP2010/052913 EP2010052913W WO2010102979A1 WO 2010102979 A1 WO2010102979 A1 WO 2010102979A1 EP 2010052913 W EP2010052913 W EP 2010052913W WO 2010102979 A1 WO2010102979 A1 WO 2010102979A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
cylinder
piston
gas
arranged
characterized
Prior art date
Application number
PCT/EP2010/052913
Other languages
German (de)
French (fr)
Inventor
Hans-Ruedi Bisang
Original Assignee
Kaba Gilgen Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E05F3/104Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction with cam-and-slide transmission between driving shaft and piston within the closer housing
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1091Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a gas spring
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/63Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by swinging arms
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/70Power-operated mechanisms for wings with automatic actuation
    • E05F15/72Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/223Hydraulic power-locks, e.g. with electrically operated hydraulic valves
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/41Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for closing
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00Constructional elements; Accessories therefore
    • E05Y2201/40Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/43Motors
    • E05Y2201/448Fluid motors; Details thereof
    • E05Y2201/454Cylinders
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2600/00Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50Mounting methods; Positioning
    • E05Y2600/52Toolless
    • E05Y2600/522Axial stacking
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/15Applicability
    • E05Y2800/17Universally applicable
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/15Applicability
    • E05Y2800/17Universally applicable
    • E05Y2800/172Universally applicable on different wing or frame locations
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20Combinations of elements
    • E05Y2800/22Combinations of elements of not identical elements of the same category, e.g. combinations of not identical springs
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20Combinations of elements
    • E05Y2800/23Combinations of elements of elements of different categories
    • E05Y2800/232Combinations of elements of elements of different categories of motors and transmissions
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26Form, shape
    • E05Y2800/264Form, shape compact
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/70Retrofitting of elements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/72Sets of mutually exchangeable elements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132Doors

Abstract

The invention describes a force store restoring unit for a door (20), in which the stored energy is provided by means of a pressure-exerting element. The restoring unit is characterized in that the pressure element is connected at least indirectly to a first piston (2,42) which is guided axially in a first cylinder (16), wherein said first piston (2,42) delimits, in the first cylinder (16), a first hydraulic chamber (36), and the first hydraulic chamber (36) is hydraulically coupled via at least one connecting duct (39) to a second hydraulic chamber (37) in which a second piston (3,42) is guided axially in a second cylinder (17), and in that the second cylinder (17) is connected, on the side facing away from the second hydraulic chamber (37), at least indirectly to a gas spring (38).

Description

TITLE

Reset device for motorized door operators

TECHNICAL FIELD

The present invention relates to a return device, in particular for motorized door operators. It relates to a return device in the sense of an energy store, in particular for the controlled closure of a door in an emergency or in case of power failure.

STATE OF THE ART

For example, from EP 0146693 Obenrürschliesser are known which comprise an actuatable by a spring arrangement in the Schliesssinne Schliesserwelle and associated with this damping piston as well as a coupled with the Schliesserwelle at one end, pivoting actuator arm which grips over a valve disposed at the other end sliding in a guide rail , In order to improve the ease of use of such, comprising only one actuating thought and engaging in a guide rail Obentürschliessers has the Schliesserwelle according to this document, a cam disc on which the opening direction of the door leaf acted associated cam track by a spring support member and of which the closing direction of the door leaf associated cam track by a damping piston is acted upon. The known from DE 100 01 950 Al door closer has a Schliesshülle on which two Hubkurvenscheiben are arranged offset to one another. In each case two spring piston with closing spring are on opposite sides of Schliesswelle height offset from one another, with one spring piston with a cam disc cooperates. Two damping piston are each arranged in the spring piston opposite, whereby they also cooperate with the Hubkurvenscheiben. An electromechanical rotary leaf drive for pivotal wing of doors or the like for example, is also known from EP 0565565 Bl known. This drive comprises a DC motor with an adjoining in the axial extension of the DC motor gear, wherein the gear is on the output side with an angle gear in operative connection. An output shaft arranged perpendicular to the longitudinal housing axis and coupled with a linkage for driving a rotary vane. Also, a return spring assembly is provided which is dimensioned in accordance with and in the axial inside to surround the electric motor and / or the transmission. Gearbox output side, the side of the housing supported at their other end the helical spring is supported on a carrier, which is rotationally fixedly connected to an output shaft of the transmission performing intermediate shaft.

With such an electromechanical drive, an automatic door opening and Schliessbetrieb can be performed. The corresponding mechanical spring arrangement is always mitgespannt and relaxed again. The return spring means is provided for the purpose, in order to guarantee a secure closing of the door in an emergency situation (for example in case of power failure or upon failure of control components). Swing Door Automatic systems need to be diverse and include suitable controlled independently in a control failure or power failure. The clamping forces have to meet the requirements ENI 154 and UL288. According to the structural conditions are different linkage types are used, which have very different kinematic properties. The so-called. Scissor or toggle linkage have the property that the door can be kept in the delivery with a very low torque of the drive. As an energy storage spring with a linear characteristic is generally used. In contrast, a slide or roller linkage requires an approximately 3 times higher Normally torque in the drive to the door zuzuhalten. Similar conditions are obtained in the open position when the door with motor power should be kept permanently open against the closing spring. For aesthetic reasons, but drives are now increasingly demanded by sliding lever or roller lever. for the drive system, this means that, up to three times higher output torque. With a linear electroless restoring principle (. Mech spring) caused thereby logically following disadvantages:

• The door can be opened completely only with great effort energized by hand.

• The total energy consumption in automatic mode is at least doubled.

• A permanent held under power open position can lead to overheating of the motor, that it takes an additional element to the engine to relieve.

(Eg an electromagnetic brake)

The electroless restoring principle with a cam disc can be partially greatly improve these disadvantages. The no-current clamping is no longer linear and can be optimally adapted to the required standards and lever types, ie the no-current manual mode is quite comfortable even with a sliding arm. This principle has the additional advantage that both directions of rotation can be used from a defined click. Nevertheless, also tends in this principle in a permanent open position of the motor overheating and the energy consumption remains at least when starting from the delivery of high continue.

SUMMARY OF THE INVENTION The invention has inter alia for its object, in particular relating to provide an improved resetting unit respectively, an energy accumulator provided with automatic electro-mechanical swing drives. This object is achieved by a force storage resetting unit is proposed for a door, in which the stored energy is available through a pressing. According to the invention this restoring unit is characterized in that the clamping element is at least indirectly connected to an axially guided in a first cylinder first piston. Here, this first piston delimits in the first cylinder has a first hydraulic chamber and the first hydraulic chamber is hydraulically coupled to a connecting channel having a second hydraulic chamber, in which a second piston is guided axially in a second cylinder via at least. Such a device is particularly now further characterized that the second cylinder is connected at least indirectly on the side remote from the second hydraulic chamber side with a gas spring. In other words, there is a certain extent in series behind the actual pressing element, first an interacting via a related with the pressing piston hydraulic stage, in which two hydraulic spaces connected by a controllable connection channel and correspondingly ensures a controlled movement, respectively, a delay-free control of the pressing member. In the direction of force behind a gas spring is arranged. Power storage alone in the form of a gas spring or a mechanical spring at a restoring device are detrimental fact that uncontrolled relaxations can occur. These disadvantages can now be solved according to the invention completely through the gas between the spring and the pressing member intermediary hydraulic stage. It can be completely lifted as it were, the disadvantages of the gas spring in connection with this use.

On the other hand however, there are the big advantages of using a gas spring anyway. The problem with such a reset means is namely the fact that enormous forces, for example, are required on a cam disc to make at all a sufficient return force on the memory available. Accordingly, the coil springs are in these applications also normally according to the prior art used by enormous thickness of the winding wire, and it must be employed a sufficient length coil springs, in order to ensure a fairly linear spring characteristic. On the other hand, such Rückstellvomchtungen should however take as little of space, which in view of the requirements of such coil springs but is virtually impossible, respectively, makes it necessary to provide complicated mechanisms for deflecting forces. Gas springs, however, since they can be realized by a plurality of interconnected chambers can be accommodated in a comparatively small volume, as, for example, without the requirement of a certain minimum axial extent, as is the case with a spiral spring.

Keeping in mind the need, every time you open the door at the same time the emergency locking mechanism are driven only so during a power failure or malfunction, the door can close again, it is of great advantage to simplify this process so that the locking mechanism once can be clamped held in the open position and is only at a night mode, a power failure or a fault occurs used. With the known power storage solutions, this can not be realized with a reasonable effort conventional linear or nonlinear oa with cam disc. For this purpose an additional lockable mechanical damping or braking element for the energy store would be present. In contrast, the proposed hydraulic level allowed by the appropriate arrangement of valves very easy such a regulation. The proposed concept offers an integrated self-contained compact, space-saving, short and slim solution, the coil spring is replaced by a space-saving gas spring system according to the prior art.

The resetting unit itself does not in this case has a motor or a hydraulic pump but is designed as a pure safe return. The restoring unit is therefore not driven and is intended to be coupled to a drive motor, respectively, to a corresponding transmission.

According to a first preferred embodiment in terms of a highly compact arrangement in the axial direction is characterized in that the two cylinders are solely hydraulically coupled to one another and have no rigid connection. When the two pistons are not rigidly connected together, leakage losses from the gas piston with the reserve volume of the first cylinder can be compensated, which in particular substantially increases the long-term stability of the mechanism. Another preferred embodiments is characterized in that, arranged in the sense of the largest possible space saving, the first cylinder and the second cylinder having substantially parallel axes next to one another (and typically accordingly exclusively hydraulically coupled to one another) are. Alternatively, it is also possible for the first and second cylinders to be arranged perpendicular to each other.

A further preferred embodiment is characterized in that a throttle valve is disposed in the connecting channel. This is preferably adjustable designed, which means it can preferably via an element which can be actuated from outside the housing can be adjusted. It is also possible to arrange a controllable valve in the connecting channel. Preferably, this controllable valve is designed in accordance with the above-mentioned emergency backup so that it opens up the possibility to tighten the return device once, and then to keep via the hydraulic stage, the gas spring in the tensioned state. This has the advantage that, in contrast to the state of the art, not everybody process of opening the door of the energy storage has to be refilled, respectively, the spring must be re-tensioned. Thus, considerable energy saving potentials and problems arise in connection with wear, etc. can be avoided. In order to perform the above-mentioned emergency function nevertheless, this controllable valve should be designed so that the connecting channel is released automatically at a power failure. This is for example possible when the controllable valve configured as a solenoid valve which releases the connecting channel in the currentless state. A further preferred embodiment is characterized in that the connecting channel has a controllable valve bridging bypass channel, in which is located a check valve. This check valve will cause the (oil) pressure in the first cylinder may not be much higher than the gas pressure of the gas spring. This check valve is for example activated when the door is opened by motor or by hand in the currentless state, and wherein the restoring device is stretched over the cam disc.

Preferably, a throttle valve is disposed in the connecting conduit in series with the controllable valve. A further preferred embodiment is characterized in that it is, is in a pressure roller pressing element in order, preferably for interaction with a cam disc on an output shaft or other element (eg rack, articulated lever, etc.) to interact with the output shaft. This pressure roller is mounted rotatably preferably in or on the first piston, it may for example be on the taken in the first hydraulic space from side facing in a recess in the piston.

With regard to the configuration of the gas spring is a further preferred embodiment is characterized in that the gas spring at least partially by a remote to the second hydraulic chamber and is formed by the second piston limited gas space. Preferably, the first cylinder and the second cylinder in a preferably one-piece block as a substantially cylindrical bores formed in a first block side open (parallel). Preferably, the first cylinder is open also to the second block side and the pressing member is then arranged on this second block side. In this case, a head plate is placed on the first block side to which the at least one connecting channel, and optionally other elements such as said throttle valve, respectively, the controllable valve and / or the check valve are arranged in or. For example, the connection channel designed as a bore and / or the block may facing open groove be formed (the groove is closed when attaching the end plate through the wall of the first block side to a channel, but production engineering and maintenance-technically connected with advantages).

A further preferred embodiment is therefore characterized in that the head plate is arranged on the side opposite the pressing member side of the block.

A particularly space-saving arrangement of the individual elements in the return device is possible when the gas spring at least two (or 3 or 4 or more) which are connected via gas connecting ducts gas spaces. Furthermore, it is preferably possible that the first cylinder and the second cylinder in a preferably one-piece block are formed as substantially cylindrical holes is that the gas spring at least partially facing away by a on the second hydraulic space and formed by the second piston limited headspace, which gas chamber is connected to gas connection channels with at least one gas space extension, said extensions are arranged in parallel or in series, and preferably wherein the gas space extensions as a plurality of preferably spatially arranged in parallel and interconnected empty holes are formed in the block. Preferred compositions such resetting unit is configured as a module and can optionally be coupled to a drive module with a motor. The unit can be preferably mounted on a gear of the drive module, preferably on the side facing the transmission side of the first cylinder (respectively its cylindrical outer boundary) in the form of a cylindrical projection (circumferential skirt) protrudes, and the pressing member in the first piston rotatable is embedded. Preferably, the cylindrical protrusion is adapted to engage a corresponding hole in the transmission housing, behind which a cam hole of the transmission is arranged to intervene.

The gas spring has advantageously over an externally accessible pressure gas port via which the gas spring tensioned or can be relaxed, preferably compressed air and / or carbon dioxide and / or nitrogen or other suitable gas is used for charging the gas spring.

A further preferred embodiment of such a resetting unit is characterized in that it (for example in the form of a pin) and / or has an optically verifiable in the assembled state gas pressure indication of an overpressure fuse.

An alternative embodiment of such a resetting unit is characterized in that the first cylinder and the second cylinder are arranged coaxially. It is possible that the first cylinder and the second cylinder are arranged coaxially, and the first piston and the second piston are realized by a combined hydraulic piston, whose first side bounds the first hydraulic chamber and whose second side bounds the second hydraulic chamber. Between these two chambers, the communication passage for the hydraulic coupling of the two spaces is in turn arranged. Here, the gas spring is preferably arranged by a coaxially with the first cylinder and the second cylinder cylinder, which is preferably integrally formed with the first and the second cylinder is formed, in which a gas piston is axially displaceably mounted, and wherein the combined hydraulic piston and the gas piston to a piston rod attached to the piston end facing away from the gas, the pressing member is arranged.

but in connection with the type of coaxially arranged first and second cylinders, it is preferable when an embodiment is chosen in which are the first cylinder and the second cylinder arranged coaxially and integrally formed, and the first piston and the second piston running in said cylinder (between these two spaces is in turn of the connecting channel for the hydraulic coupling of the two spaces arranged.), and in which the gas spring is arranged through a coaxially with the first cylinder and the second cylinder cylinder which is preferably integrally formed with the first and second cylinders is formed, in which a gas piston is mounted axially displaceably. the second piston and the piston thereby gas is preferably designed as a combined piston, so that this combined piston on one side of the second hydraulic chamber and bounded on the other side of the guest room. Moreover, the present invention relates to an automatic door drive, in particular for a rotary wing, a swing door, or an escape system with a return unit as described above, preferably comprising also a motor and a gear, wherein preferably the transmission along a main extension direction is arranged centrally and which is disposed one side of the motor, and the restoring unit is arranged on the other side, wherein the output shaft is arranged perpendicular to the main extension direction. Such a door operator may be further characterized in that it engages via a sliding arm, a toggle lever or a scissor linkage on the door leaf.

Further preferred Ausführungsförmen the invention are described in the dependent are aimed at. BRIEF DESCRIPTION OF THE DRAWINGS

Preferred Ausfiihrungsförmen the invention are described below with reference to the drawings, which are illustrative only and are not to be interpreted as limiting. In the drawings: Figure 1 is plan views from above of various uses of a drive unit with a restoring device according to the invention, wherein a) a swing door with guide rail (drawing) is shown, a swing door (in b) with the normal arm pushing) in c. ) is a swing door is shown with Noπnalgestänge with other pivot point and d) a swing door with two-piece sliding arm;

Fig. 2 a) is a front view of a drive unit, in which the

Cover has been removed, b) is a view from below of a

Drive unit, in which the cover has been removed, and c) is a perspective view obliquely from below (on a drive module with a long engine unit);

Figure 3 a) is a view from below (on a drive module with a short engine unit) with resetting unit. b) a bottom view of a drive module without

Safe return; c) a perspective view of a drive module without resetting unit with insight through the hole of the cam disc;

Fig. 4 is a schematic representation of the relative arrangement of the individual

Elements of the reset unit according to a first embodiment; Fig. 5 is a schematic representation of the relative arrangement of the individual

Elements of the reset unit according to a second exemplary embodiment (a) and according to a third embodiment (b); and

Fig. 6 a) is a perspective view of a reset unit to the second

Block side; b) a perspective view of a resetting unit of the first block side with attached end plate; c) is a perspective view of a resetting unit of the first block without side end plate, and d) a perspective view of a further other reset unit to the first block side without end plate.

DESCRIPTION OF PREFERRED EMBODIMENTS The present invention relates to a reset device resp. a reset module 10, as can be found in connection with motorized or possibly not motorized closing devices for swing doors, swing doors or emergency exits application.

1 shows possible fields of application of such a reset module are illustrated by means of different mechanisms of such door closers. The proposed restoring module can be applied to all these four ways. In Figure Ia, the possibility is shown in which a in a door frame 22 by a hinge 21 pivotally mounted door 20 is typically provided above the door opening with a drive housing 23rd The drive housing has an output shaft 13 on which a sliding arm is attached. This sliding arm 24 has at its end facing away from the drive 23 via a slider, which slides in a mounted at the upper edge of the door 20 slide 26th In such basically pulling and / or pushing ausgestaltbaren constructions relatively large forces are required to open a door, resp. and to close it again. Accordingly, such structures require particularly high restoring moments, which are made available through such a reset module. Especially in connection with such high restoring moments, the proposed design is used particularly advantageously.

In Figure Ib, a drive device 23 is illustrated in which the pivot point is further shifted slightly to the hinge 21 and in which both a slide arm and a scissors linkage or two-part sliding arms (Fig. Id) can be used as pulling oppressive. The very short reset module of only about 6.5 cm in length advantageously allows this type of construction.

In figure Ic a view analogous to Figure Ib construction is shown, but here on the opening direction side facing away from the door and with a further wegversetzten from the hinge 21 of rotation of the driven shaft 13. Also with such drives, the proposed return module 10 advantageously apply. Also, apply the proposed restoring module in conjunction with swing doors, as exemplified in Figure Id. Here, the slide arm 24 is bent and formed running in a guide rail 26 in such a way that both in a first and in a second opening direction, respectively, a motor drive. A provision is possible. Even in such Türschliessvonϊchtungen the proposed design can be applied.

Basically, are possible as a field of application for the proposed construction of these specific drives, as shown in Figure 1, but the proposed construction can also be applied to other built drives. Normally, these drives are motor-driven.

Such a drive is shown with the housing removed sheet in Figure 2 a from the front. Here it can be seen how the individual functional components of the drive are arranged in a row a certain extent parallel to the upper edge of the door in a very space-saving manner.

Along these, the longitudinal direction of the drive device defining direction follow from the left seen firstly a clamping Print 14 for the connection and ensuring the electrical connections and control connections, then follows the reset module which is formed in the extension direction exceptionally short (typically in the longitudinal direction of the drive unit 27 in the region 5-15 cm, in the illustrated construction, it has a length of ?? cm. Anschi eating follows the transmission unit 12, in which the output shaft 13 is mounted. Then follows on the right side of the motor 11, which is typically a DC motor is formed. Practically, behind the engine, that is to say directly on the mounting plate 29, a print 15 with the necessary control electronics which may be attached, for example, of sensors is disposed. in the bottom view shown in Figure 2b can be seen as Behind the clamp print, that is, between this and the mounting plate is typically a power supply element (rectifier) ​​is arranged which can be connected directly to the AC mains, such as a main switch 28 is disposed on the outside of the housing, and as the electronic control unit 15 is provided behind the motor 11 is. Furthermore, it is seen how the return module has a gas pressure indicator in the form of a gas pressure indicator pin 9, which can be easily read out in the gap between the reset module and terminal Print also when viewed from the front (see FIG. 2a), is arranged. Furthermore, the electromagnetic valve 6 can be seen disposed between the mounting plate and reset module 10th This electromagnetic valve is connected to the controller. The actual drive module 30 is shown in Figure 2c, in a perspective view obliquely from below. This is particularly well seen how this drive module, the reset module 10 to a certain extent as a modular expansion in the longitudinal direction set has, and as furthermore, the adjustment for the throttle 7 and the compressed gas connection are easily accessible from the front 8 is provided at this reset module 10 (these elements are further discussed in detail below). Furthermore, it can be seen how this drive module has mounting means 31 through which it is typically attached with the aid of screws on the mounting plate 29th In Figure 3 is such a drive module 30, shown here with a trained shorter in the axial direction of the motor 11 in a view from below. 3b shows the same driving module is illustrated, wherein the reset module is not arranged here now. These two figures are intended to document the modular design of this drive, the reset module 10 is to some extent an optional component of such a drive module 30 and can be replaced separately or retrofitted. In figure 3c is shown a perspective view on that side wall of the drive module 30 to which the reset module is coupled 10th The housing of the transmission 12 has, at this side through a circular hole 34, behind which the cam disc 1 of the transmission is arranged. Furthermore, mounting holes are typically provided with an internal thread 33, so that the return module, which generates enormous high forces relative to the transmission in the longitudinal direction can be well attached to the housing of transmission 12.

In Figure 4, the general operation of a first embodiment, which substantially corresponds to that which will then be discussed in connection with Figure 6, indicated diagrammatically. The eccentric cam disc 1, which is coupled rotationally fixed on an inner pinion to the output shaft 13 is contacted by the pressing roller 35th The pressure roller is rotatably mounted in a roller piston 12 and rolls on the outer surface of the cam disc 1. The reel spool 2 is mounted in a first cylinder 16 in the axial direction slidably and sufficiently sealed, first hydraulic volume that faces away on the pressing roller end of the roller cylinder 2 formed respectively , the first hydraulic chamber 36 is sealed so that the hydraulic fluid disposed therein (typically a hydraulic oil) can not escape. The rotation of the cam disc 1 about the axis arranged perpendicular to the paper roll axis of rotation of the pen 2 wherein the volume is reduced 36 moves successively further into the cylinder 16 into it.

This is possible, since this volume is hydraulically connected via a connecting channel 39 to a second hydraulic chamber 37th This second hydraulic chamber 37 is formed by a second cylinder 17 in which a separating piston 3 is arranged, which limits on one side of this second hydraulic volume 37th

The hydraulic connection 39 thus connects the first hydraulic chamber 36 hydraulically connected to the second hydraulic chamber 37 of the roller piston 2 displaces in Figure 4 to the left, shifts in the mass corresponding to the non-return valve 5 is in this case opened in the case of a closed valve 6 in dependence the cross-sections of the volumes 36 resp. 37, the separating piston 3 to the right.

The connecting channel 39 in this case has a valve disposed in the channel electromagnetic valve 6, and in series therewith via a choke respectively. a throttle valve. The throttle valve 7 is configured preferably adjustable extent, that is, the throttle effect can be adjusted adapted to the needs. The solenoid valve resp. the electromagnetic solenoid valve 6 is designed for safety reasons so that it releases the connecting channel at a power failure or a control malfunction. 39 For safety reasons also a bypass channel 41 is arranged which bridges the two elements 6 and 7. FIG. In this bypass passage 41, a check valve 5 is arranged. The bypass passage 41 which bypasses the controllable valve 6 in the connecting channel 39, thus has a non-return valve 5 causes This check valve 5, that the oil pressure in the hydraulic stage 16 can not be substantially higher than the gas pressure 38. If, in other words, the pressure difference between the space 36 and the space 37 exceeds a certain value and the pressure in the space 36 is substantially greater than the pressure in the chamber 37 thus allows this non-return valve 5, a flow of hydraulic fluid via the channel 41 from the space 36 into the space 37. this check valve 5 (bypass) is always activated when the door is opened by motor or by hand in the currentless state, and wherein the restoring device is stretched over the cam disc.

On the second hydraulic chamber 37 side facing away from the cylinder 17 of the separating piston 3, a gas space enclosed 38th This gas space to a certain extent forms a first volume element of the actual gas spring which is arranged in series with the hydraulic element. In order for this gas spring does not have a highly non-linear spring characteristic, it is via connecting channels (one or more) connected with the gas space extensions. 4 This gas space extensions 4 raise the overall standing for the resilience of available gas volume and thus lead to an increased linearity of the spring characteristic. These gas space extensions can be arranged at any location geometrically very space-saving and thus allow a in the axial direction (main extending direction of the drive housing, respectively. direction along double arrows in Figure 4) very compact and short design. In this case, in one of the gas chamber extensions, a pressure gas connection 8 is provided. Such a pressure gas connection, which can be used for initially infected with, or also to re-fill as part of maintenance work, but can be provided on the cylinder 17 directly. An alternative design of such Rückstellvomchtung is shown in Figure 5a, here the hydraulic element is to some extent formed by a combined hydraulic piston 42 which runs in a cylinder and is formed on one side of the first hydraulic chamber 36 and on the other side (the roller 35 away) the second hydraulic chamber 37. These two chambers are the right and left in each case of stationary walls bounded in the cylinder. The space between the two cylinder chambers 37 and 38 in this case has a ventilation opening 32, so that the volume contained therein remains variable and does not affect the mobility of the system. Between these two spaces 36 and 37 a connection line is then in turn placed 39 with the already discussed in connection with Figure 4 elements. The cylinder 42 runs on a piston rod 44, this piston rod 44 is on the roller 35 side facing away from nor extended, and has on this page via a gas piston, which is also running in this cylinder (but may also be in another cylinder run). On the left side of this gas piston 51 is then formed limited link each other by a further stationary wall of the gas chamber 38. This gas space can also in turn by appropriate extensions which more coaxially are not arranged with the arranged in Figure 5a specified cylinder then be arranged via respective connection channels 40 ,

Somewhat problematic in the solution according to Figure 5a is the fact that in such a solution the two pistons are connected together rigidly 2 and 3, respectively, and 51, and so, for example, leakage losses from the gas piston to the reserve volume in 37 can not be compensated. An improved design in this respect is represented according to a third exemplary embodiment in Figure 5b. Here, all of the pistons are even arranged in a single cylinder as shown in Figure 5a of the case, but the two pistons 2 and 3 are not rigidly connected together, respectively, formed as a combined hydraulic piston but the two pistons are hydraulically coupled exclusively, as well as in embodiment is the case according to FIG. 4 For this, in turn, the same piston is inserted on one side for the limitation of space 37 3 and 38 on the other side for the limitation of space in this way can now be compensated for leakage losses from the gas piston with the reserve volume in 37, which substantial has advantages.

A reset module with a function according to Figure 4 is shown in perspective in FIG. 6 In Figure 6a a perspective view of the first side of the block 50 is shown, so that to some extent comes to lie on the visible side in Figure 3c. The group consisting of solid material (e.g., aluminum or steel) formed block 37 of this unit, which is typically formed in one piece, has on this second side of the block 50 via an apron-like extension 46 which towards the cylinder shown in connection with Figure 4 by the reference numeral 16 for transmission extended. Recognizable is the role piston 2 is mounted in which the pressing roller 35 to rotate. The roller piston 2 is slidably mounted in the cylinder 16 and thus the cylindrical extension in the cylindrical extension 46 can in this case as in Figure 6 recognizable for the cam disc a recess having 52nd Also visible are the massive screws 45, which extend in the direction of the transmission and via which, by means of recognizable in Figure 6 the screw heads, the reset module by means of the bores 33 can be coupled firmly in Figure 3 at the transmission unit 12 are.

6b shows this restoring module is shown seen from the other side of the first block 49 here, the top plate 48 or end plate is disposed on the block 47th This head plate is screwed by screws 53 fixed to the block 47th Can also be seen here again, the gas pressure indicator pin and the solenoid valve 5. Also it can be seen how easily accessible from outside the adjustment possibility for the throttle valve 7 and the pressurized gas connection 8 are arranged, and all of these elements in the end plate are provided 48th In Figure 6c the return module is now shown with distant end plate. It can be seen how the individual cylinders, ie, the first cylinder 16, which constitutes the first hydraulic chamber 36 and the second cylinder 17, which forms the second hydraulic chamber 37, are formed as simple holes in the massive block 47th The bore of the cylinder 16 is a through hole and is aligned with the cylindrical extension 46 resp. is coaxial therewith. In this bore of the roller cylinder 2 is arranged axially displaceable. The cylinder 17 is formed as a blind hole, and only to the end plate open. In this cylinder 17, the separating piston runs 3. To the second hydraulic chamber 37 facing away from (and thus 6c in FIG not visible) side of the separating piston is the first section of the gas space 38 is arranged, this is arranged on the inside of the block channels connected with further bores 4.1 and 4.2, which are designed as a gas chamber extensions. These channels can be either carried out directly from the cylinder 17, but holes can be connected by means of corresponding channels endplate. In other words, the connecting channel 39 is arranged as a channel or groove in the end plate 48 and gleicheπnassen disposed therein functional elements. Thus, the major functional elements of the compounds can be placed in the end plate and the block 47 is actually only the recording of the holes and can be formed in accordance with a particularly robust material in one piece. In Figure 6d a reset module is provided according to a further embodiment, in a manner analogous to Figure 6c representation. In order to have the greatest possible gas chamber for the gas spring 47 within the block is available, the gas space extensions 4.1 and 4.2 are not cylindrical but is maximum with a cross section which is adapted precisely to the space within the block. Thus, the power storage spaces can be increased in general. It is therefore no longer a circle-cylindrical bores but by cylindrical bores having a cross sectional area which is defined optimally to the space conditions within the block. In addition, a further gas space enlargement is arranged 4.3 (in conjunction with the other gas chambers 4.1 and 4.2 respectively generally included in the volume of the gas spring) in a portion of the block 47, where otherwise no functional elements were arranged. It can be as much as possible the volume of the block 47 be designed hollow with other words and are included in the gas chamber of the gas spring so as to have the largest possible volume of gas within the block 47 and thus to make the characteristic of the gas spring as linear as possible. At the end again a summary of the essential elements: The elements 2-9 are in a separate module 10 in the sense of an assembly together, wherein the gas space extension 4 from a plurality of interconnected volumes (empty holes in the housing) may consist, on the one hand the space available is used optimally to the roller piston and on the other hand, this results in a nearly constant or slightly rising extending spring characteristic of the gas spring. The gas filling is done at the factory by means of compressed air or nitrogen to the maximum pressure for the highest class (EN6) and can be reduced based on the respective application. (EN6 -> EN5 -> EN4). If required, a refill / correction using commercially available CO 2 capsules can be made. Above, not shown gas pressure indicator pin 9, which can be designed simultaneously as excess pressure protection, showing the respective classes setting respectively in general the current gas pressure at. An automatic drive for swing doors is provided consisting, is firmly connected to a cam disc softer 1 of a drive motor 11 which drives via a transmission 12 has an output shaft. 13 Instead of a cam disc 1, a different coupling can be provided.

A Kraftspeicher- or restoring device 10 acts on an axially guided pressing roller 35 to the run-off surfaces of the cam disc 1, and generates a position-dependent, variable torque, which is usually required for an electroless closing of the door, and wherein the drive motor is optionally counteracts as regenerative brake 11 ,

For power storage, a compressed gas is used which hydraulically to the piston 2, which contains the pressure roller 35 respectively which is fixed to the pinch roller 35, acts via a separating piston. 3 This role piston 2 and the piston 3 are separator 10 in a short (short in the axial direction in an arrangement of the restoring unit, transmission, engine in a row) or slender housing block arranged to save space. The storage of the pressurized gas is also carried out in the same enclosure respectively in a plurality of block still possible so that the bores 4 having the spring characteristic due to the increased gas volume its flat spring characteristic.

The oil flow can be blocked in one direction with an electromagnetic valve 6, so that the roller piston 2 stops and no longer pressing on the cam disc 1, when the reset mechanism is again tensioned. If the oil flow released through the valve 6, then an adjustable throttle valve 7 provides for controlled slow reflux, whereby the pinch roller 35 is brought gently again in contact connection with the cam disc. 1 In other words, is prevented by the throttle valve 7 that the roller 35 with high power (large stored energy) shoots against the cam disc and these damaged respectively suddenly produced a large clamping force. If this resetting device effective not at each door opening in the automatic mode, but only once tensioned and only in a particular mode, in the event of a fault or a power failure, then, significant energy savings are possible. Known electromechanical swing door operators, which have a mechanical implementation of the power storage, use only the drive motor in a power failure as a regenerative brake. A failure of this device is possible in many ways and can have serious consequences. The here disclosed Innovation has two independent attenuators. This fact allows a simple and reliable way to apply such swing door operators for pendant and emergency exit doors. In summary, results in the following advantages of this new concept:

• Both directions of rotation of the cam disc 1 have a restoring torque that is attenuated adjustable by means of the throttle. 4 Thus can also swing door systems and Fluchwegsysteme with safe controlled

realize normally-provision.

• Optionally, in automatic operation, the reset means, until another mode is selected or a power failure or control failure can be kept 10 for the purpose of reduced energy consumption once stretched as long as by means of a small optional electromagnetic valve 6

Device to manual mode forces. For applications in the low-energy (low energy) the electromagnetic valve 6 may also be omitted.

• A DC motor 11 drives via a transmission 12, the output shaft 13 with the cam disc 1, acts in the no-current operating as a regenerative brake.

This is where the so-called. Endschlagfunktion to which shortly before the delivery of the door, the regenerative braking effect cancels (fire protection). Without a hydraulic damping the door could in case of error ie omission of the regenerative braking action, strike unabated. The new concept solves this dangerous state of affairs in a simple manner by means of redundancy.

saving by integrating all the elements necessary for the no-current provisions into a single compact space, short, slim module 10 is interchangeable, this module easily and retrofittable and can be used for simple applications when no Stromlosfunktion is required, be omitted.

LIST OF REFERENCE NUMBERS

1 cam disc 30 Antπebsmodul

2 Roller piston 31 attachment projection

3 separating piston 32 Entlüftungsöffhung

4 headspace extension 33 with mounting holes

4.1 first gas expansion chamber internal thread

4.2 second gas expansion chamber 34 in the housing hole 12

5 check valve 35 pressure roller

6 electromagnetic valve 36 first hydraulic chamber

7 orifice 37 second hydraulic chamber

8-pressure gas port 38 gas space

9 Gas pressure indicating pin 39 connecting channel between

10 reset module 36 and 37

11 (DC) motor 40 connection channel between

12 gear 38 and 4

13 output shaft 41 bypass channel

14 Terminal print 42 combined

15 control electronics hydraulic piston

16, first cylinder 43 gas pressure cylinder

17 second cylinder piston rod 44

45 fastening screw

20 door panel 46 cylindrical projection

21 hinges, door hinge 47 block

22 door frame 48 head plate

23 drive housing 49 first side of the block

24 Slide arm 50 second block side

25 toggle 51 gas piston

26 rail 52 recess for

27 cam disc drive unit

28 main switch 53 for fastening screws 48

29 mounting plate

Claims

1. stored energy reset unit connected to a door (20), wherein the stored energy is available via a pressure element, characterized in that the clamping element at least indirectly with a in a first cylinder (16) axially guided first piston (2.42) is, said first piston (2, 42) in the first cylinder (16) defines a first hydraulic chamber (36) and the first hydraulic chamber (36) via at least one connecting channel (39) with a second hydraulic chamber (37) in which a second piston (3,42) in a second cylinder (17) is axially guided, is hydraulically coupled, and that the second cylinder (17) on the second hydraulic chamber (37) opposite side at least indirectly to a gas spring (38) is ,
2. resetting unit according to claim 1, characterized in that the first cylinder (16) and the second cylinder (17) are exclusively hydraulically coupled to each other and jointing no rigid connection, and that they are preferably disposed in a manner with essentially parallel axes next to one another.
3. restoring unit according to any one of the preceding claims, characterized in that a throttle valve (7) is arranged in the connecting channel (39) which is preferably adjustable configured.
4. resetting unit according to any one of the preceding claims, characterized in that a controllable valve (6) is arranged in the connecting channel (39).
5. restoring unit according spoke 4, characterized in that the controllable valve (6) is a solenoid valve which releases the connecting channel (36) in the currentless state.
6. resetting unit according to any one of the preceding claims 4 or 5, characterized in that the connecting channel (39) via a controllable valve grouted bridging (6) bridging channel (41) in which a check valve is arranged (5).
7. resetting unit according to any one of the preceding claims 4-6, characterized in that in the connecting channel (39) in series with the controllable valve (6), a throttle valve (7) is arranged.
8. resetting unit according to any one of the preceding claims, characterized in that it is, is at the pressing member is a pressing roller (2), preferably for interaction with a cam disc (1) on an output shaft (13) which is preferably mounted in or on the first piston (2) is mounted.
9. resetting unit according to any one of the preceding claims, characterized in that the gas spring (38) at least partially faces away by a on the second hydraulic chamber (37) and by the second piston (3) limited gas space (38) is formed.
10. resetting unit according to any one of the preceding would appeal, characterized in that the first cylinder (16) and the second cylinder (17) in a preferably one-piece block (47) as a substantially cylindrical, with a first block side (49) open bores are formed and that on this first block side (49) has a head plate (48) is arranged, on which the at least one connecting channel (39) and optionally further elements (5-7) are arranged in or with the connecting channel (39) preferably designed as a bore and / or the block (47) facing open groove is formed.
11. resetting unit according to claim 10, characterized in that the head plate (48) on the pressing (35) the opposite side of the block (47) is arranged.
12. resetting unit according to any one of the preceding would appeal, characterized in that the gas spring (38) comprises at least two gas connecting ducts (40) connected to gas spaces (4,38).
13. resetting unit according to any one of the preceding claims, characterized in that the first cylinder (16) and the second cylinder (17) in a preferably one-piece block (47) as a substantially cylindrical bores are formed, that the gas spring (38) at least partially limited by on the second hydraulic chamber (37) from facing and by the second piston (3) gas space (38) is formed which via gas connecting ducts (40) with at least one gas space extension (4, 4.1,4.2) is connected, wherein the extensions are arranged in parallel or in series, and preferably wherein the gas space extensions as a plurality of preferably arranged in parallel and interconnected empty holes whose cross-sectional area is preferably circular or preferably further adapted by other cross-sectional area of ​​the space available, in block (47) formed are.
14. resetting unit according to any one of the preceding claims, characterized in that it is designed as an assembly, which to a transmission (12) can be attached, wherein on the transmission (12) side facing the first cylinder (16) in the form of a cylindrical protrusion (46) protrudes, and the pressing member (35) in the first piston (2) is rotatably disposed, and wherein the cylindrical projection (46) is adapted in a corresponding hole (34) in the gear housing, behind which hole (34 ) a cam (2) is arranged to intervene.
15. resetting unit according to any one of the preceding claims, characterized in that the gas spring (38) via an externally accessible compressed gas connection (8) has, over which the gas spring (38) can be tensioned or relaxed, preferably compressed air and / or carbon dioxide and / or nitrogen to the loading of the gas spring (38) is used.
16. resetting unit according to any one of the preceding claims, characterized in that it disposes a visually verifiable in the assembled state gas pressure gauge (9) and / or via an overpressure protection.
17. resetting unit according to any one of the preceding claims, characterized in that the first cylinder (16) and the second cylinder (17) are arranged coaxially, and the first piston (2) and the second piston (3) by a combined hydraulic piston (42 ) can be realized, whose first side bounds the first hydraulic chamber (36) and whose second side bounds the second hydraulic chamber (37), wherein the gas spring (38) preferably by a coaxially with the first cylinder (16) and second cylinder (17) arranged cylinder , which is preferably integrally formed with the first and the second cylinder is formed, in which a gas piston (51) is axially displaceably mounted, and wherein the combined hydraulic piston (42) and the gas pistons (51) to a piston rod (44) attached are, at the gas piston (51) from the end facing the pressing member (35) is arranged.
18. resetting unit according to any one of the preceding claims, characterized in that the first cylinder (16) and the second cylinder (17) coaxially arranged and are integrally formed, and the first piston (2) and the second piston (3) in this cylinder run, and that the gas spring (38) by a coaxially with the first cylinder (16) and second cylinder (17) arranged cylinder, which is preferably integrally formed with the first and the second cylinder is formed, in which a gas piston (51) is axially displaceably mounted, and wherein further preferably the second piston (3) and the gas pistons (51) are formed as a combined piston, so that this combined piston on one side of the second hydraulic chamber (37) and on the other side of the guest room ( 38) is limited.
19. Automatic door drive, in particular for a rotary wing, a swing door, or an escape system with a restoring unit according to one of the preceding claims, comprising also a motor (11) and a transmission (12), wherein preferably the transmission (12) along a main extension direction arranged centrally and is disposed on one side of the motor (11) and the restoring unit is arranged on the other side, wherein the output shaft (13) is arranged perpendicular to the main extension direction.
20. Door drive according to claim 19, characterized in that it engages via a sliding arm (24), a toggle lever (25) or a scissor linkage on the door leaf (20).
PCT/EP2010/052913 2009-03-11 2010-03-08 Restoring device for motor-driven door drives WO2010102979A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH00365/09 2009-03-11
CH3652009 2009-03-11

Publications (1)

Publication Number Publication Date
WO2010102979A1 true true WO2010102979A1 (en) 2010-09-16

Family

ID=41010011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/052913 WO2010102979A1 (en) 2009-03-11 2010-03-08 Restoring device for motor-driven door drives

Country Status (1)

Country Link
WO (1) WO2010102979A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3095939A1 (en) * 2015-05-22 2016-11-23 Vieler International GmbH & Co. KG Energy storage device for stroke support of the swing of a screen of a presentation counter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193757A (en) * 1986-07-22 1988-02-17 Newman Tonks Eng Door closer
DE10001950A1 (en) * 1999-01-18 2000-07-20 Geze Gmbh Seat-belt draw-in unit has base frame as mounting for belt-winder spool, shaft, motor, speed reducing mechanism, and power transmission elements
DE102005047339A1 (en) * 2005-07-05 2007-01-11 Dorma Gmbh + Co. Kg Door closing device for a fireproof door comprises a drive unit arranged in a housing and coupled with a door via an output shaft, an elastic force storage unit coupled with the drive unit and a hydraulic unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193757A (en) * 1986-07-22 1988-02-17 Newman Tonks Eng Door closer
DE10001950A1 (en) * 1999-01-18 2000-07-20 Geze Gmbh Seat-belt draw-in unit has base frame as mounting for belt-winder spool, shaft, motor, speed reducing mechanism, and power transmission elements
DE102005047339A1 (en) * 2005-07-05 2007-01-11 Dorma Gmbh + Co. Kg Door closing device for a fireproof door comprises a drive unit arranged in a housing and coupled with a door via an output shaft, an elastic force storage unit coupled with the drive unit and a hydraulic unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3095939A1 (en) * 2015-05-22 2016-11-23 Vieler International GmbH & Co. KG Energy storage device for stroke support of the swing of a screen of a presentation counter

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