EP2924216A1 - Door closer - Google Patents
Door closer Download PDFInfo
- Publication number
- EP2924216A1 EP2924216A1 EP14161299.4A EP14161299A EP2924216A1 EP 2924216 A1 EP2924216 A1 EP 2924216A1 EP 14161299 A EP14161299 A EP 14161299A EP 2924216 A1 EP2924216 A1 EP 2924216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- end position
- spring
- spring abutment
- side end
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/10—Closers 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/10—Closers 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
- E05F3/102—Closers 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 rack-and-pinion transmission between driving shaft and piston within the closer housing
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
- E05F3/10—Closers 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
- E05F3/104—Closers 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
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING 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
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
- E05Y2201/47—Springs; Spring tensioners
- E05Y2201/492—Spring tensioners, tension sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING 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
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/60—Suspension or transmission members; Accessories therefore
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/696—Screw mechanisms
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING 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
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/10—Adjustable or movable
- E05Y2600/20—Adjustable or movable characterised by the movement transmission
Definitions
- a closer shaft is rotatably mounted on a door closer housing about a shaft axis and passes through a cylindrical interior of the door closer housing.
- a closing piston is arranged in the interior of the door closer housing on one side of the closer shaft and movably guided along a housing axis, which is formed by the cylinder axis of the cylindrical interior of the door closer housing.
- a helical spring is arranged in the cylindrical interior of the door closer housing, which is supported on the one hand on the closing piston and on the other hand on a front-side housing cover of the door closer housing.
- rotational movements of the closer shaft are converted to the shaft axis in linear movements of the closing piston along the housing axis or linear movements of the closing piston along the housing axis in rotational movements of the closer shaft about the shaft axis. If the door leaf provided with the door closer is opened in rotation, then the closer shaft is rotated about the shaft axis, for example, by means of a linkage provided between the door leaf and a stationary door frame. Due to the rotational movement, the closer shaft drives the closing piston under bias of the coil spring arranged between the closing piston and the front-side housing cover with a movement along the housing axis of the door closer housing.
- the previously preloaded coil spring lengthens and thereby drives the closing piston with a movement directed against the closer shaft along the housing axis of the door closer housing.
- the closer shaft is rotated about the shaft axis and the rotational movement of the closer shaft causes via the linkage an automatic closing movement of the door leaf.
- the bias of the coil spring and thus the force exerted to automatically close the open door leaf closing force and to be overcome when opening the door panel counterforce is adjustable.
- the coil spring is not supported on the side remote from the closing piston side directly on the front-side housing cover of the door closer housing but rather on a spring abutment which rests on an adjusting spindle.
- the adjusting spindle extends with a spindle axis along the housing axis of the door closer housing and is rotatably mounted on the front-side cover of the door closer housing about the spindle axis but in the direction of the spindle axis.
- An external thread of the adjusting spindle meshes with an internal thread of the spring abutment.
- the displacement of the spring abutment is limited to the lying towards the closing piston end of the adjusting spindle by a spring ring which is inserted into a circumferential groove of the adjusting spindle and forms an end stop for the spring abutment.
- the spring abutment can be moved until it abuts against the frontal housing cover of the door closer housing. In its end positions, the spring abutment bears against the respective end stop. If, after reaching the end position, the adjusting spindle continues to be acted upon in the relevant direction of rotation, the spring abutment is braced against the respective end stop. If the bias of the coil spring to be changed starting from these ratios, the spring abutment is first to be released from the respective end stop.
- the adjusting spindle is to be rotated in a direction of rotation which is opposite to the direction of rotation of the adjusting spindle when approaching the end stop by the spring abutment.
- a rotational movement of the adjusting spindle relative to the spring abutment is a rotational movement of the adjusting spindle relative to the spring abutment.
- the spring abutment on its outer circumference with radial projections and the door closer housing on its inner wall with longitudinal the housing axis of the door closer housing extending guide grooves provided, in which engage the radial projections of the spring abutment.
- the object of the present invention is to provide a door closer, on which the bias of the shutter spring can be adjusted with respect to the prior art simplified means.
- the spring abutment is designed as concentric with the spindle axis of the threaded actuator drive and with the interior of the door closer housing abutment circular disc whose diameter corresponds to the maximum diameter of the interior of the door closer housing.
- the abutment circular disk of the type according to the invention can with a low manufacturing technology and be provided at a low financial cost.
- a structurally complex longitudinal guide of the abutment circular disc along the spindle axis of the screw drive or the housing axis of the door closer housing is not provided in the case of the invention.
- the closing spring and thus an already existing door closer component are provided according to the invention. Due to the application of force by the closing spring, the spring abutment is prevented from being able to follow rotational movements of the adjusting spindle of the screw drive in the clamping direction of rotation and / or in the direction of unclamping.
- the application of force to the spring abutment by the closing spring ensures that after the movement of the spring abutment into the closing piston-side end position and / or into the housing-side end position and the associated "caking" of the spring abutment at the respective end stop, an action is taken on the adjusting spindle in the corresponding direction of rotation Rotary movement of the adjusting spindle relative to the spring abutment has the consequence and thus the spring abutment is released from the previously approached end stop.
- Claim 2 relates to a Erfindungsbauart with an overload protection for the device for adjusting the bias of the shutter spring.
- the rotational movement of the adjusting spindle should end in the clamping direction of rotation and in the direction of relaxation as soon as the spring abutment has reached the closing piston-side end position or the housing-side end position.
- the adjusting spindle after reaching the Schreteerkolben salen end position by the spring abutment further in the clamping direction of rotation or after reaching the housing-side end position by the spring abutment further in the relaxation direction of rotation is subjected to force.
- the invention supported on the spring abutment Closing spring to that the adjusting spindle is jointly rotated with the spring abutment acting on the respective end stop in the clamping direction of rotation or in the relaxation direction of rotation.
- the support of the closing spring on the spring abutment assumes the function of a slip clutch. Due to its geometry and its concentric arrangement with the housing axis of the door closer, the spring abutment entrained by the adjusting spindle in the respective direction of rotation can follow the rotational movement of the adjusting spindle without colliding with the inner wall of the door closer housing.
- a stop plate is provided as Schconvergeerkolben industrialer end stop and / or as a housing-side end stop for the spring abutment in a further preferred embodiment of the invention.
- the plate-like end stop provides a relatively large-scale system for moving in the respective end position spring abutment and ensures in this way for defined conditions at the respective end stop.
- the claims 5 to 12 relate to the invention preferred measures to ensure a functionally reliable adjustment of the bias of the shutter spring.
- the claimed measures may be provided individually or in combination with each other.
- the amount of force with which the closing spring acts on the spring abutment selected appropriately.
- the radial distance from the spindle axis, with which the closing spring is supported on the spring abutment taken into account as the decisive criterion.
- claim 7 is placed on the radial distance from the spindle axis with which the spring abutment in the Schriceerkolben intentionen end position the Sch manipulateerkolben intenden end stop and / or applied in the housing-side end position the housing-side end stop.
- the radial distance from the spindle axis, with which the spring abutment in the Schröerkolben salen end position and / or in the housing-side end position applied to the respective end stop and the radial distance from the spindle axis, with which the closing spring is supported on the spring abutment, each other are coordinated.
- the thread pitch of the screw drive according to the invention is such that for adjusting the bias of the shutter spring, the adjusting spindle can be rotated relative to the spring abutment and that at the same time excluded from the application of force to the spring abutment by the closing spring rotational movement of the spring abutment relative to the adjusting spindle is.
- a threaded actuator 1 for a door closer comprises an adjusting spindle 2 with a spindle axis 3.
- the adjusting spindle 2 is provided with an adjusting external thread 5.
- the adjusting spindle 2 meshes with an adjusting internal thread 6 on a spring abutment 7 designed as spring plate. Both the adjusting spindle 2 and the spring plate 7 are made of steel.
- a circular stop disc 8 is provided, which is riveted to the shaft 4 of the adjusting spindle 2.
- a likewise disc-like housing-side end stop for the spring plate 7 is formed in the form of an outer collar 9 at a distance from the stop disc 8 to the shaft 4 of the adjusting spindle 2.
- the adjusting spindle 2 has a sealing groove 10 and an actuating end 11 with a hexagon socket 12 ( FIG. 2 ).
- FIG. 1 shows the screw drive 1 in a functional state in which the spring plate 7 rests against the stop plate 8.
- the screw drive is 1 in FIG. 2 shown in installation position on a door closer housing 13.
- the adjusting spindle 2 is rotatably mounted on a front-side housing cover 14 of the door closer housing 13 about a housing axis 15 and fixed in the direction of the spindle axis 3.
- the housing axis 15 of the door closer housing 13 coincides with the spindle axis 3.
- the spring plate 7 is designed as a concentric with the spindle axis 3 of the adjusting spindle 2 and the housing axis 15 of the door closer housing 13 abutment circular disc.
- the adjusting spindle 2 by means of an inserted into the hexagon socket 12 hexagon in a clamping direction of rotation (arrow 16 in FIG. 2 ) and in a relaxation direction of rotation (arrow 17 in FIG. 2 ) to be turned around.
- the spring plate 7 is acted upon on the side remote from the housing cover 14 side by a closing spring designed as a helical spring 18.
- the closing spring 18 is supported directly on the spring plate 7.
- the closing spring 18 has a coincident with the spindle axis 3 of the adjusting spindle 2 and the housing axis 15 of the door closer housing 13 spring axis 19 and is biased along the spring axis 19 between the spring plate 7 and a conventional closer piston not shown in the figures of the door closer. Due to its bias, the closing spring 18 acts on the spring plate 7 along the spring axis 19 with an in FIG. 2 rightward force. Under the action of this force, the adjusting spindle 2 is supported with the rear side of the outer collar 9 via a sliding ring on the housing cover 14. An inserted into the seal groove 10 of the adjusting spindle 2 sealing ring 20th seals a cylindrical interior 21 of the door closer housing 13 from the environment. The cylinder axis of the cylindrical interior 21 forms the housing axis 15 of the door closer housing 13. The diameter of the cylindrical interior 21 is greater than the diameter of the concentric with the interior 21 spring plate. 7
- r 1 , r 2 and r 3 radial distances r 1 , r 2 and r 3 .
- r 1 is the radial distance from the spindle axis 3, with which the closing spring 18 is supported on the spring plate 7.
- r 2 the radial distance from the spindle axis 3 is designated, with which the spring plate 7 in the position according to the Figures 1 and 2 the stopper disc 8 and in the position according to FIG. 4 the outer collar 9 is acted upon along the spindle axis 3.
- r 3 is the radial distance from the spindle axis 3, with which the adjusting external thread 5 of the adjusting spindle 2 and the adjusting internal thread 6 of the spring plate 7 supported along the spindle axis 3 to each other.
- the closer spring 18 is biased by means of the screw drive maximum 1.
- the spring plate 7 is in its Sch Strukturerkolben folken end position. In this position, the spring plate 7 has been moved by a rotational actuation of the adjusting spindle 2 in the clamping direction of rotation 16. Due to the rotational actuation of the adjusting spindle 2 in the clamping direction of rotation 16, the spring plate 7 has performed a clamping feed movement in the direction of an arrow 22. In the course of the clamping feed movement of the spring plate 7 came to the stop plate 8 to the plant. As a result of a corresponding rotational actuation of the adjusting spindle 2, the spring plate 7 was braced axially against the stop plate 8 to a small extent. Accordingly, in the functional state according to FIG. 2 the stopper plate 8 by the spring plate 7 in the direction 22 of the clamping feed movement of the spring plate 7 subjected to force.
- the adjusting spindle 2 is acted upon by a sufficiently large force in the clamping direction of rotation 16, the adjusting spindle 2 rotates together with the spring plate 7 sitting thereon relative to the closing spring 18 in the clamping direction of rotation 16.
- the friction resistance is thereby to overcome, which is opposed due to the application of the spring plate 7 by the closing spring 18 of the rotational movement of the spring plate 7 in the clamping direction of rotation. Due to a corresponding dimensioning of the force exerted by the closing spring 18 along the housing axis 15 on the spring plate 7 force the spring plate 7 non-destructive slip on him acting on the end face of the closing spring 18 along.
- the adjusting spindle 2 is in the relaxation direction of rotation 17 to rotate about the spindle axis 13.
- an axial displacement of the spring plate 7 from the position according to FIG. 2 can cause to the right, the adjusting spindle 2 must rotate in the relaxation direction of rotation 17 relative to the spring plate 7. This is in the case of the arrangement according to FIG. 2 This ensures that the spring plate 7 due to the application of force by the closing spring 18 regardless of the rotational actuation of the adjusting spindle 2 in the relaxation direction of rotation 17 retains its rotational position relative to the door closer housing 13.
- the rotation of the adjusting spindle 2 in the relaxation direction of rotation 17 rotationally fixed arrangement of the spring plate 7 is achieved by the interaction of various factors.
- the friction torque between the closer spring 18 and the spring plate 7 is greater than the sum of the friction torque between the adjusting external thread 5 and the adjusting internal thread 6 and the "Anbackmoment" between the spring plate 7 and the stop plate 8.
- the thread pitch of the threaded actuator 1 is relatively large.
- the upper limit of the thread pitch of the screw drive 1 in turn depends on the coefficient of friction between the adjusting external thread 5 on the adjusting spindle 2 and the adjusting internal thread 6 on the spring plate. 7
- the adjusting spindle 2 is acted upon by a large force in the relaxation direction of rotation 17, then the adjusting spindle 2 rotates in the relaxation direction of rotation 17 and takes the spring plate 7 in the direction of rotation.
- the turntable 7 slips non-destructive at the end face of the closing spring 18 acting on it and also on the housing cover 14 acted upon by it.
Abstract
Ein Türschließer weist ein Türschließergehäuse (13), einen in einem Innenraum (21) des Türschließergehäuses (13) längs einer Gehäuseachse (15) bewegliche geführten Schließerkolben sowie eine als Schraubenfeder ausgebildete Schließerfeder (18) auf, die in dem Innenraum (21) des Türschließergehäuses (13) zwischen dem Schließerkolben und einem Federwiderlager (7) angeordnet ist. Ein Gewindestellantrieb (1) mit einer um eine Spindelachse (3) drehbaren Stellspindel (2) dient dazu, das Federwiderlager (7) unter Veränderung der Vorspannung der Schließerfeder (18) relativ zu dem Schließerkolben zuzustellen. Dabei ist das Federwiderlager (7) als mit der Spindelachse (3) und mit dem Innenraum (21) des Türschließergehäuses (13) konzentrische Widerlager-Kreisscheibe ausgebildet, deren Durchmesser maximal dem Durchmesser des Innenraums (21) des Türschließergehäuses (13) entspricht. Aufgrund der Kraftbeaufschlagung des Federwiderlagers (7) durch die Schließerfeder (18) ist die Stellspindel (2) relativ zu dem Federwiderlager (7) in einer Spann-Drehrichtung (16) und in einer Entspannungs-Drehrichtung (17) um die Spindelachse (3) drehbar. In Folge einer entsprechenden Drehung der Stellspindel (2) um die Spindelachse (3) bewegt sich das Federwiderlager (7) mit einer Spann-Vorschubbewegung in Richtung auf eine schließerkolbenseitige Endstellung und mit einer Entspannungs-Vorschubbewegung aus der schließerkolbenseitigen Endstellung in Richtung auf eine gehäuseseitige Endstellung sowie mit einer Entspannungs-Vorschubbewegung in Richtung auf die gehäuseseitige Endstellung und mit einer Spannungs-Vorschubbewegung aus der gehäuseseitigen Endstellung in Richtung auf die schließerkolbenseitige Endstellung.A door closer has a door closer housing (13), a guided closing piston which is movable in an interior (21) of the door closer housing (13) along a housing axis (15) and a closing spring (18) designed as a helical spring, which is located in the interior (21) of the door closer housing (13) between the closing piston and a spring abutment (7) is arranged. A screw drive (1) with an adjusting spindle (2) rotatable about a spindle axis (3) serves to deliver the spring abutment (7) while changing the pretensioning of the closing spring (18) relative to the closing piston. In this case, the spring abutment (7) as with the spindle axis (3) and the interior (21) of the door closer housing (13) concentric abutment circular disc whose diameter corresponds to a maximum of the diameter of the interior (21) of the door closer housing (13). Due to the application of force to the spring abutment (7) by the closing spring (18), the adjusting spindle (2) is fixed relative to the spring abutment (7) in a clamping direction of rotation (16) and in an unwinding direction of rotation (17) about the spindle axis (3). rotatable. As a result of a corresponding rotation of the adjusting spindle (2) about the spindle axis (3) moves the spring abutment (7) with a clamping feed movement in the direction of a Schließerkolbenseitige end position and with a relaxation feed movement from the Schließerkolbenseitigen end position in the direction of a housing-side end position and with a relaxation feed movement in the direction of the housing-side end position and with a voltage feed movement from the housing-side end position in the direction of the closing piston side end position.
Description
Die Erfindung betrifft einen Türschließer
- mit einem Türschließergehäuse, das einen zylindrischen Innenraum aufweist, dessen Zylinderachse eine Gehäuseachse des Türschließergehäuses bildet und der von einer parallel zu der Zylinderachse verlaufenden Innen-wand des Türschließergehäuses begrenzt ist,
- mit einem Schließerkolben, der in dem Innenraum des Türschließergehäuses längs der Gehäuseachse beweglich geführt ist,
- mit einer als Schraubenfeder mit einer Federachse ausgebildeten Schließerfeder, die im Innenraum des Türschließergehäuses zwischen dem Schließerkolben und einem längs der Gehäuseachse von dem Schließerkolben beabstandeten Federwiderlager mit längs der Gehäuseachse verlaufender Federachse angeordnet ist und die einerseits federkolbenseitig und andererseits unter Kraftbeaufschlagung des Federwiderlagers in Richtung der Federachse unmittelbar an dem Federwiderlager abgestützt ist sowie
- mit einem Gewindestellantrieb, mittels dessen das Federwiderlager unter Veränderung der Vorspannung der Schließerfeder längs der Gehäuseachse relativ zu dem Schließerkolben zustellbar ist und der eine Stellspindel umfasst, auf welcher das Federwiderlager aufsitzt und die eine längs der Gehäuseachse verlaufende Spindelachse aufweist und mit einem Stell-Außengewinde versehen ist, das mit einem Stell-Innengewinde des Federwiderlagers kämmt,
- wobei die Stellspindel an dem Türschließergehäuse um die Spindelachse drehbar gelagert und relativ zu dem Federwiderlager in einer Spann-Drehrichtung sowie in einer zu der Spann-Drehrichtung gegenläufigen Entspannungs-Drehrichtung um die Spindelachse drehbar ist und wobei das Federwiderlager aufgrund einer relativ zu dem Federwiderlager ausgeführten Drehung der Stellspindel in der Spann-Drehrichtung längs der Spindelachse mit einer Spann-Vorschubbewegung in Richtung auf eine schließerkolbenseitige Endstellung bewegbar ist und in der schließerkolbenseitigen Endstellung einen schließerkolbenseitigen Endanschlag in Richtung der Spann-Vorschubbewegung beaufschlagt und wobei das Federwiderlager aufgrund einer relativ zu dem Federwiderlager ausgeführten Drehung der Stellspindel in der Entspannungs-Drehrichtung längs der Spindelachse mit einer zu der Spann-Vorschubbewegung gegenläufigen Entspannungs-Vorschubbewegung in Richtung auf eine gehäuseseitige Endstellung bewegbar ist und in der gehäuseseitigen Endstellung einen von dem schließerkolbenseitigen Endanschlag längs der Gehäuseachse beabstandeten gehäuseseitigen Endanschlag in Richtung der Entspannungs-Vorschubbewegung beaufschlagt.
- with a door closer housing, which has a cylindrical interior, whose cylinder axis forms a housing axis of the door closer housing and which is delimited by an inner wall of the door closer housing running parallel to the cylinder axis,
- with a closing piston, which is movably guided in the interior of the door closer housing along the housing axis,
- with a designed as a helical spring with a spring axis closing spring, which is arranged in the interior of the door closer housing between the closing piston and along the housing axis spaced from the closing piston spring abutment extending along the housing axis spring axis and the one hand spring piston side and on the other hand under force of the spring abutment in the direction of the spring axis is supported directly on the spring abutment and
- with a threaded actuator, by means of which the spring abutment under change of the bias of the shutter spring along the housing axis relative to the Schließerkolben is undeliverable and comprising an adjusting spindle, on which the spring abutment is seated and having a spindle axis extending along the housing axis and having a control external thread is provided, which meshes with an adjusting internal thread of the spring abutment,
- wherein the adjusting spindle is rotatably mounted on the door closer housing about the spindle axis and is rotatable relative to the spring abutment in a clamping direction of rotation and in a direction opposite to the clamping direction of rotation relaxation direction of rotation about the spindle axis and wherein the spring abutment running due to a relative to the spring abutment rotation the adjusting spindle in the clamping direction of rotation along the spindle axis with a clamping feed movement in the direction of a Schließerkolbenseitige end position is movable and acted in Schließerkolbenseitigen end position a Schließerkolbenseitigen stop in the direction of the clamping feed movement and wherein the spring abutment executed due to a relative to the spring abutment rotation the adjusting spindle in the relaxation direction of rotation along the spindle axis with a counter to the clamping feed movement relaxation feed movement in the direction of a housing-side end position is movable and acted in the housing-side end position spaced from the Schließerkolbenseitigen end stop along the housing axis housing-side end stop in the direction of the relaxation feed movement.
Türschließer der vorstehenden Art sind bereits seit langem bekannt. Eine Schließerwelle ist dabei an einem Türschließergehäuse um eine Wellenachse drehbar gelagert und durchsetzt einen zylindrischen Innenraum des Türschließergehäuses. Ein Schließerkolben ist in dem Innenraum des Türschließergehäuses an einer Seite der Schließerwelle angeordnet und längs einer Gehäuseachse, die von der Zylinderachse des zylindrischen Innenraums des Türschließergehäuses gebildet wird, beweglich geführt. An der von der Schließerwelle abliegenden Seite des Schließerkolbens ist in dem zylindrischen Innenraum des Türschließergehäuses eine Schraubenfeder angeordnet, die einerseits an dem Schließerkolben und andererseits an einem stirnseitigen Gehäusedeckel des Türschließergehäuses abgestützt ist. Über eine Verzahnung der Schließerwelle und eine damit kämmende Gegenverzahnung an dem Schließerkolben oder über eine an der Schließerwelle vorgesehene Nockenscheibe, an welcher der Schließerkolben abgestützt ist, werden Drehbewegungen der Schließerwelle um die Wellenachse in lineare Bewegungen des Schließerkolbens längs der Gehäuseachse bzw. lineare Bewegungen des Schließerkolbens längs der Gehäuseachse in Drehbewegungen der Schließerwelle um die Wellenachse umgesetzt. Wird der mit dem Türschließer versehene Türflügel drehgeöffnet, so wird die Schließerwelle beispielsweise mittels eines zwischen dem Türflügel und einem feststehenden Türrahmen vorgesehenen Gestänges um die Wellenachse gedreht. Aufgrund der Drehbewegung treibt die Schließerwelle den Schließerkolben unter Vorspannung der zwischen dem Schließerkolben und dem stirnseitigen Gehäusedeckel angeordneten Schraubenfeder mit einer Bewegung längs der Gehäuseachse des Türschließergehäuses an. Wird der Türflügel nach dem Drehöffnen freigegeben, so längt sich die zuvor vorgespannte Schraubenfeder und treibt dabei den Schließerkolben mit einer gegen die Schließerwelle gerichteten Bewegung längs der Gehäuseachse des Türschließergehäuses an. Infolgedessen wird die Schließerwelle um die Wellenachse gedreht und die Drehbewegung der Schließerwelle bewirkt über das Gestänge eine selbsttätige Schließbewegung des Türflügels. Die Vorspannung der Schraubenfeder und somit die zum selbsttätigen Schließen des geöffneten Türflügels ausgeübte Schließkraft und die beim Öffnen des Türflügels zu überwindende Gegenkraft ist einstellbar. Zu diesem Zweck ist die Schraubenfeder an der von dem Schließerkolben abliegenden Seite nicht unmittelbar an dem stirnseitigen Gehäusedeckel des Türschließergehäuses sondern vielmehr an einem Federwiderlager abgestützt, das auf einer Stellspindel aufsitzt. Die Stellspindel erstreckt sich mit einer Spindelachse längs der Gehäuseachse des Türschließergehäuses und ist an dem stirnseitigen Deckel des Türschließergehäuses um die Spindelachse drehbar aber in Richtung der Spindelachse ortsunveränderlich gelagert. Ein Außengewinde der Stellspindel kämmt mit einem Innengewinde des Federwiderlagers. Durch Drehen der Stellspindel wird das Federwiderlager längs der Stellspindel in unterschiedliche Positionen bewegt und dadurch die Vorspannung der an dem Federwiderlager abgestützten Schraubenfeder variiert. Der Verstellweg des Federwiderlagers wird an dem zu dem Schließerkolben hin liegenden Ende der Stellspindel durch einen Federring begrenzt, der in eine Umfangsnut der Stellspindel eingelegt ist und einen Endanschlag für das Federwiderlager bildet. In der entgegengesetzten Richtung kann das Federwiderlager bewegt werden, bis es an dem stirnseitigen Gehäusedeckel des Türschließergehäuses anschlägt. In seinen Endstellungen liegt das Federwiderlager an dem jeweiligen Endanschlag an. Wird nach Erreichen der Endstellung die Stellspindel weiterhin in der betreffenden Drehrichtung beaufschlagt, so wird das Federwiderlager gegen den jeweiligen Endanschlag verspannt. Soll die Vorspannung der Schraubenfeder ausgehend von diesen Verhältnissen verändert werden, so ist das Federwiderlager zunächst von dem betreffenden Endanschlag zu lösen. Zu diesem Zweck ist die Stellspindel in einer Drehrichtung zu drehen, welche der Drehrichtung der Stellspindel beim Anfahren des Endanschlags durch das Federwiderlager entgegengesetzt ist. Voraussetzung sowohl für die Bewegung des Federwiderlagers bis zum Erreichen einer Endstellung als auch für das Lösen des Federwiderlagers von dem jeweiligen Endanschlag ist eine Drehbewegung der Stellspindel relativ zu dem Federwiderlager. Um eine derartige Relativbewegung zu gewährleisten und um zu vermeiden, dass die Stellspindel bei ihrer Drehbewegung das auf der Stellspindel aufsitzende Federwiderlager in Drehrichtung mitnimmt, ist im Falle des Standes der Technik das Federwiderlager an seinem Außenumfang mit radialen Vorsprüngen und das Türschließergehäuse an seiner Innenwand mit längs der Gehäuseachse des Türschließergehäuses verlaufenden Führungsnuten versehen, in welche die radialen Vorsprünge des Federwiderlagers eingreifen.Door closers of the above type have long been known. A closer shaft is rotatably mounted on a door closer housing about a shaft axis and passes through a cylindrical interior of the door closer housing. A closing piston is arranged in the interior of the door closer housing on one side of the closer shaft and movably guided along a housing axis, which is formed by the cylinder axis of the cylindrical interior of the door closer housing. At the side remote from the closer shaft of the closer piston, a helical spring is arranged in the cylindrical interior of the door closer housing, which is supported on the one hand on the closing piston and on the other hand on a front-side housing cover of the door closer housing. About a toothing of the closer shaft and a meshing counter teeth on the closing piston or one on the closer shaft provided cam disk on which the closing piston is supported, rotational movements of the closer shaft are converted to the shaft axis in linear movements of the closing piston along the housing axis or linear movements of the closing piston along the housing axis in rotational movements of the closer shaft about the shaft axis. If the door leaf provided with the door closer is opened in rotation, then the closer shaft is rotated about the shaft axis, for example, by means of a linkage provided between the door leaf and a stationary door frame. Due to the rotational movement, the closer shaft drives the closing piston under bias of the coil spring arranged between the closing piston and the front-side housing cover with a movement along the housing axis of the door closer housing. If the door leaf is released after the rotary opening, the previously preloaded coil spring lengthens and thereby drives the closing piston with a movement directed against the closer shaft along the housing axis of the door closer housing. As a result, the closer shaft is rotated about the shaft axis and the rotational movement of the closer shaft causes via the linkage an automatic closing movement of the door leaf. The bias of the coil spring and thus the force exerted to automatically close the open door leaf closing force and to be overcome when opening the door panel counterforce is adjustable. For this purpose, the coil spring is not supported on the side remote from the closing piston side directly on the front-side housing cover of the door closer housing but rather on a spring abutment which rests on an adjusting spindle. The adjusting spindle extends with a spindle axis along the housing axis of the door closer housing and is rotatably mounted on the front-side cover of the door closer housing about the spindle axis but in the direction of the spindle axis. An external thread of the adjusting spindle meshes with an internal thread of the spring abutment. By turning the adjusting spindle, the spring abutment is moved along the adjusting spindle in different positions and thereby varies the bias of the supported on the spring abutment coil spring. The displacement of the spring abutment is limited to the lying towards the closing piston end of the adjusting spindle by a spring ring which is inserted into a circumferential groove of the adjusting spindle and forms an end stop for the spring abutment. In the opposite Direction, the spring abutment can be moved until it abuts against the frontal housing cover of the door closer housing. In its end positions, the spring abutment bears against the respective end stop. If, after reaching the end position, the adjusting spindle continues to be acted upon in the relevant direction of rotation, the spring abutment is braced against the respective end stop. If the bias of the coil spring to be changed starting from these ratios, the spring abutment is first to be released from the respective end stop. For this purpose, the adjusting spindle is to be rotated in a direction of rotation which is opposite to the direction of rotation of the adjusting spindle when approaching the end stop by the spring abutment. Prerequisite for both the movement of the spring abutment until reaching an end position and for releasing the spring abutment of the respective end stop is a rotational movement of the adjusting spindle relative to the spring abutment. In order to ensure such relative movement and to avoid that the adjusting spindle entrains in its rotational movement seated on the adjusting spindle spring abutment in the direction of rotation, in the case of the prior art, the spring abutment on its outer circumference with radial projections and the door closer housing on its inner wall with longitudinal the housing axis of the door closer housing extending guide grooves provided, in which engage the radial projections of the spring abutment.
Die Aufgabe der vorliegenden Erfindung besteht darin, einen Türschließer bereitzustellen, an welchem die Vorspannung der Schließerfeder mit gegenüber dem Stand der Technik vereinfachten Mitteln eingestellt werden kann.The object of the present invention is to provide a door closer, on which the bias of the shutter spring can be adjusted with respect to the prior art simplified means.
Erfindungsgemäß gelöst wird diese Aufgabe durch den Türschließer gemäß Anspruch 1.This object is achieved according to the invention by the door closer according to
Im Falle der Erfindung ist das Federwiderlager als mit der Spindelachse des Gewindestellantriebs und mit dem Innenraum des Türschließergehäuses konzentrische Widerlager-Kreisscheibe ausgebildet, deren Durchmesser maximal dem Durchmesser des Innenraums des Türschließergehäuses entspricht. Die Widerlager-Kreisscheibe der erfindungsgemäßen Art kann mit einem geringen fertigungstechnischen und mit einem geringen finanziellen Aufwand bereitgestellt werden. Eine konstruktiv aufwändige Längsführung der Widerlager-Kreis-scheibe längs der Spindelachse des Gewindestellantriebs bzw. der Gehäuseachse des Türschließergehäuses ist im Falle der Erfindung nicht vorgesehen. Für die zur Erzeugung einer Spann-Vorschubbewegung und/oder einer Entspannungs-Vorschubbewegung des Federwiderlagers erforderliche Relativbewegung zwischen der Stellspindel des Gewindestellantriebs und dem Federwiderlager sorgt erfindungsgemäß die Schließerfeder und somit eine ohnehin vorhandene Türschließerkomponente. Aufgrund der Kraftbeaufschlagung durch die Schließerfeder ist das Federwiderlager daran gehindert, Drehbewegungen der Stellspindel des Gewindestellantriebs in der Spann-Drehrichtung und/oder in der Entspannungs-Drehrichtung mitzuvollziehen. Insbesondere sorgt die Kraftbeaufschlagung des Federwiderlagers durch die Schließerfeder dafür, dass nach der Bewegung des Federwiderlagers in die schließerkolbenseitige Endstellung und/oder in die gehäuseseitige Endstellung und dem damit verbundenen "Anbacken" des Federwiderlagers an dem jeweiligen Endanschlag eine Beaufschlagung der Stellspindel in der entsprechenden Drehrichtung eine Drehbewegung der Stellspindel relativ zu dem Federwiderlager zur Folge hat und das Federwiderlager folglich von dem zuvor angefahrenen Endanschlag freikommt.In the case of the invention, the spring abutment is designed as concentric with the spindle axis of the threaded actuator drive and with the interior of the door closer housing abutment circular disc whose diameter corresponds to the maximum diameter of the interior of the door closer housing. The abutment circular disk of the type according to the invention can with a low manufacturing technology and be provided at a low financial cost. A structurally complex longitudinal guide of the abutment circular disc along the spindle axis of the screw drive or the housing axis of the door closer housing is not provided in the case of the invention. For the relative movement between the adjusting spindle of the screw drive and the spring abutment required for producing a clamping feed movement and / or a relaxation advancing movement of the spring abutment, the closing spring and thus an already existing door closer component are provided according to the invention. Due to the application of force by the closing spring, the spring abutment is prevented from being able to follow rotational movements of the adjusting spindle of the screw drive in the clamping direction of rotation and / or in the direction of unclamping. In particular, the application of force to the spring abutment by the closing spring ensures that after the movement of the spring abutment into the closing piston-side end position and / or into the housing-side end position and the associated "caking" of the spring abutment at the respective end stop, an action is taken on the adjusting spindle in the corresponding direction of rotation Rotary movement of the adjusting spindle relative to the spring abutment has the consequence and thus the spring abutment is released from the previously approached end stop.
Besondere Ausführungsarten des Türschließers nach dem unabhängigen Anspruch 1 ergeben sich aus den abhängigen Ansprüchen 2 bis 12.Particular embodiments of the door closer according to the
Anspruch 2 betrifft eine Erfindungsbauart mit einer Überlastsicherung für die Vorrichtung zur Verstellung der Vorspannung der Schließerfeder. An sich sollte die Drehbewegung der Stellspindel in der Spann-Drehrichtung und in der Entspannungs-Drehrichtung enden, sobald das Federwiderlager die schließerkolbenseitige Endstellung oder die gehäuseseitige Endstellung erreicht hat. In der Praxis ist aber nicht auszuschließen, dass die Stellspindel nach Erreichen der schließerkolbenseitigen Endstellung durch das Federwiderlager weiter in der Spann-Drehrichtung oder nach Erreichen der gehäuseseitigen Endstellung durch das Federwiderlager weiter in der Entspannungs-Drehrichtung kraftbeaufschlagt wird. In derartigen Fällen lässt erfindungsgemäß die an dem Federwiderlager abgestützte Schließerfeder zu, dass die Stellspindel gemeinschaftlich mit dem den jeweiligen Endanschlag beaufschlagenden Federwiderlager weiter in der Spann-Drehrichtung oder in der Entspannungs-Drehrichtung gedreht wird. Die Abstützung der Schließerfeder an dem Federwiderlager übernimmt dabei die Funktion einer Rutschkupplung. Das von der Stellspindel in der jeweiligen Drehrichtung mitgenommene Federwiderlager kann aufgrund seiner Geometrie und seiner mit der Gehäuseachse des Türschließers konzentrischen Anordnung die Drehbewegung der Stellspindel mitvollziehen, ohne mit der Innenwand des Türschließergehäuses zu kollidieren.
Ausweislich Anspruch 3 ist in weiterer bevorzugter Ausgestaltung der Erfindung eine Anschlagplatte als schließerkolbenseitiger Endanschlag und/oder als gehäuseseitiger Endanschlag für das Federwiderlager vorgesehen. Der plattenartige Endanschlag bietet eine verhältnismäßig großflächige Anlage für das in die jeweilige Endstellung bewegte Federwiderlager und sorgt auf diese Art und Weise für definierte Verhältnisse an dem jeweiligen Endanschlag. Infolgedessen ist es möglich, die Beaufschlagung des Federwiderlagers durch die Schließerfeder derart zu gestalten und generell die Parameter, die für einen funktionssicheren Betrieb des Gewindestellantriebs maßgebend sind, derart zu definieren, dass eine funktionssichere Einstellung der Vorspannung der Schließerfeder gewährleistet ist.As shown in claim 3, a stop plate is provided as Schließerkolbenseitiger end stop and / or as a housing-side end stop for the spring abutment in a further preferred embodiment of the invention. The plate-like end stop provides a relatively large-scale system for moving in the respective end position spring abutment and ensures in this way for defined conditions at the respective end stop. As a result, it is possible to make the loading of the spring abutment by the closing spring in such a way and generally the parameters that are decisive for a functionally reliable operation of the screw drive, to define such that a functionally reliable adjustment of the bias of the shutter spring is ensured.
Im Interesse einer möglichst einfachen und kostengünstigen Fertigung des schließerkolbenseitigen Endanschlags und/oder des gehäuseseitigen Endanschlags für das Federwiderlager ist ausweislich Anspruch 4 als Anschlagplatte eine mit der Stellspindel konzentrische Anschlag-Kreisscheibe vorgesehen.In the interest of the simplest possible and cost-effective production of Schließerkolbenseitigen end stop and / or the housing-side end stop for the spring abutment is shown in
Die Ansprüche 5 bis 12 betreffen erfindungsgemäß bevorzugte Maßnahmen zur Gewährleistung einer funktionssicheren Einstellung der Vorspannung der Schließerfeder. Die anspruchsgemäßen Maßnahmen können einzeln oder in Kombination miteinander vorgesehen sein.The
Gemäß Anspruch 5 ist der Betrag der Kraft, mit welcher die Schließerfeder das Federwiderlager beaufschlagt, zweckentsprechend gewählt.According to
Gemäß Anspruch 6 wird der radiale Abstand von der Spindelachse, mit welchem die Schließerfeder an dem Federwiderlager abgestützt ist, als maßgebendes Kriterium berücksichtigt. Ausweislich Anspruch 7 wird auf den radialen Abstand von der Spindelachse abgestellt, mit welchem das Federwiderlager in der schließerkolbenseitigen Endstellung den schließerkolbenseitigen Endanschlag und/oder in der gehäuseseitigen Endstellung den gehäuseseitigen Endanschlag beaufschlagt.According to
Insbesondere ist vorgesehen, dass der radiale Abstand von der Spindelachse, mit welchem das Federwiderlager in der schließerkolbenseitigen Endstellung und/oder in der gehäuseseitigen Endstellung den jeweiligen Endanschlag beaufschlagt und der radiale Abstand von der Spindelachse, mit welchem die Schließerfeder an dem Federwiderlager abgestützt ist, aufeinander abgestimmt sind.In particular, it is provided that the radial distance from the spindle axis, with which the spring abutment in the Schließerkolbenseitigen end position and / or in the housing-side end position applied to the respective end stop and the radial distance from the spindle axis, with which the closing spring is supported on the spring abutment, each other are coordinated.
An dem Türschließer nach Anspruch 8 ist der radiale Abstand von der Spindelachse, mit welchem das Stell-Außengewinde der Stellspindel und das Stell-Innengewinde des Federwiderlagers längs der Spindelachse aneinander abgestützt sind, derart gewählt, dass die Stellspindel die für die Einstellung der Vorspannung der Schließerfeder erforderlichen Drehbewegungen relativ zu dem Federwiderlager ausführen kann.At the door closer according to
Ausweislich Anspruch 9 ist die Gewindesteigung an dem erfindungsgemäßen Gewindestellantrieb derart bemessen, dass zur Verstellung der Vorspannung der Schließerfeder die Stellspindel relativ zu dem Federwiderlager gedreht werden kann und dass gleichzeitig eine aus der Kraftbeaufschlagung des Federwiderlagers durch die Schließerfeder resultierende Drehbewegung des Federwiderlagers relativ zu der Stellspindel ausgeschlossen ist.As shown in
Im Falle der Erfindungsbauart nach den Ansprüchen 10 bis 12 sind die Reibungskoeffizienten zwischen unterschiedlichen Türschließerkomponenten zweckentsprechend gewählt. Dabei betrifft Anspruch 10 den Reibungskoeffizienten zwischen dem Federwiderlager und der an dem Federwiderlager abgestützten Schließerfeder, Anspruch 11 den Reibungskoeffizienten zwischen dem Stell-Außengewinde der Stellspindel und dem Stell-Innengewinde des Federwiderlagers und Anspruch 12 den Reibungskoeffizienten zwischen dem schließerkolbenseitigen Endanschlag und/oder dem gehäuseseitigen Endanschlag einerseits und dem in der schließerkolbenseitigen Endstellung bzw. der gehäuseseitigen Endstellung an dem jeweiligen Endanschlag abgestützten Federwiderlager andererseits. Eine Einflussnahme auf die maßgebenden Reibungskoeffizienten ist insbesondere durch eine entsprechende Materialwahl möglich. Etwa für die mit dem Stell-Außengewinde versehene Stellspindel und das mit dem Stell-Innengewinde versehene Federwiderlager wird erfindungsgemäß Stahl als Werkstoff bevorzugt.In the case of Erfindungsbauart according to
Nachfolgend wird die Erfindung anhand beispielhafter schematischer Darstellungen näher erläutert. Es zeigen:
Figur 1- einen Gewindestellantrieb zum Einstellen der Vorspannung einer Schließerfeder eines Türschließers,
Figur 2- den
Gewindestellantrieb gemäß Figur 1 in Einbaulage an einem Türschließergehäuse und - Figuren 3 und 4
- die
Anordnung gemäß Figur 2 mit von Figur 2 abweichenden Funktionszuständen des Gewindestellantriebs.
- FIG. 1
- a threaded actuator for adjusting the bias of a closing spring of a door closer,
- FIG. 2
- the threaded actuator according to
FIG. 1 in installation position on a door closer housing and - FIGS. 3 and 4
- the arrangement according to
FIG. 2 WithFIG. 2 deviating functional states of the threaded actuator.
Gemäß
Als schließerkolbenseitiger Endanschlag für den Federteller 7 ist an dem in
Ein gleichfalls scheibenartiger gehäuseseitiger Endanschlag für den Federteller 7 ist in Form eines Außenbundes 9 mit Abstand von der Anschlagscheibe 8 an den Schaft 4 der Stellspindel 2 angeformt. An der von dem Federteller 7 abliegenden Seite des Außenbundes 9 weist die Stellspindel 2 eine Dichtungsnut 10 sowie ein Betätigungsende 11 mit einem Innensechskant 12 auf (
Der Federteller 7 wird an der von dem Gehäusedeckel 14 abliegenden Seite von einer als Schraubenfeder ausgeführten Schließerfeder 18 beaufschlagt. Dabei ist die Schließerfeder 18 unmittelbar an dem Federteller 7 abgestützt.The
Die Schließerfeder 18 besitzt eine mit der Spindelachse 3 der Stellspindel 2 und der Gehäuseachse 15 des Türschließergehäuses 13 zusammenfallende Federachse 19 und ist längs der Federachse 19 zwischen dem Federteller 7 und einem in den Abbildungen nicht gezeigten herkömmlichen Schließerkolben des Türschließers vorgespannt. Aufgrund ihrer Vorspannung beaufschlagt die Schließerfeder 18 den Federteller 7 längs der Federachse 19 mit einer in
In
In dem Funktionszustand gemäß
Wird bei den Verhältnissen gemäß
Soll die Vorspannung der Schließerfeder 18 ausgehend von den Verhältnissen gemäß
Zweckentsprechend gewählt sind im Einzelnen
- der Betrag der
von der Schließerfeder 18 längs der Federachse 19 aufden Federteller 7 ausgeübten Kraft, - die radialen Abstände r1, r2, r3,
- der Reibungskoeffizient zwischen der Schließerfeder 18
und dem Federteller 7, - der Reibungskoeffizient zwischen
dem Federteller 7 und derAnschlagscheibe 8, - der Reibungskoeffizient zwischen dem Stell-
Außengewinde 5der Stellspindel 2 und dem Stell-Innengewinde 6 desFedertellers 7 sowie - die Gewindesteigung des Stell-
Außengewindes 5der Stellspindel 2 und des Stell-Innengewindes 6 desFedertellers 7.
- the amount of force exerted by the closing
spring 18 along the spring axis 19 on thespring plate 7, - the radial distances r 1 , r 2 , r 3 ,
- the friction coefficient between the closing
spring 18 and thespring plate 7, - the friction coefficient between the
spring plate 7 and thestop plate 8, - the friction coefficient between the adjusting
external thread 5 of the adjustingspindle 2 and the adjustinginternal thread 6 of thespring plate 7 and - the thread pitch of the adjusting
external thread 5 of the adjustingspindle 2 and the adjustinginternal thread 6 of the spring plate. 7
Das Reibmoment zwischen der Schließerfeder 18 und dem Federteller 7 ist größer als die Summe aus dem Reibmoment zwischen dem Stell-Außengewinde 5 und dem Stell-Innengewinde 6 und dem "Anbackmoment" zwischen dem Federteller 7 und der Anschlagscheibe 8. Um das "Anbackmoment" klein zu halten, ist die Gewindesteigung des Gewindestellantriebs 1 verhältnismäßig groß gewählt. Bei der Wahl der Gewindesteigung wurde beachtet, dass der Gewindestellantrieb 1 selbsthemmend sein muss und die Gewindesteigung des Gewindestellantriebs 1 daher eine bestimmte Obergrenze nicht übersteigen darf. Die Obergrenze der Gewindesteigung des Gewindestellantriebs 1 wiederum ist abhängig von dem Reibungskoeffizienten zwischen dem Stell-Außengewinde 5 an der Stellspindel 2 und dem Stell-Innengewinde 6 an dem Federteller 7.The friction torque between the
Aufgrund der in dem dargestellten Beispielsfall getroffenen Maßnahmen behält der Federteller 7 bei einer Drehung der Stellspindel 2 in der Entspannungs-Drehrichtung 17 seine Drehstellung um die Spindelachse 3 sowohl zu Beginn als auch im weiteren Verlauf der Drehbetätigung der Stellspindel 2 beibehält. Zu Beginn der Drehbetätigung der Stellspindel 2 wird das "Anbackmoment" überwunden, das aufgrund der Haftreibung zwischen dem Federteller 7 an der Anschlagscheibe 8 wirksam ist. Im weiteren Verlauf der Drehbetätigung der Stellspindel 2 wird zur Beibehaltung der Drehstellung des Federtellers 7 die zwischen der Stellspindel 2 und dem Federteller 7 auftretende Gleitreibung kompensiert.Due to the measures taken in the illustrated example case retains the
Alles in allem bewegt sich der aufgrund der Beaufschlagung durch die Schließerfeder 18 relativ zu dem Türschließergehäuse 13 drehfeste Federteller 7 infolge der Drehung der Stellspindel 2 in der Entspannungs-Drehrichtung 17 mit einer Entspannungs-Vorschubbewegung in Richtung eines Pfeils 23 aus der schließerkolbenseitigen Endstellung gemäß
In der gehäuseseitigen Endstellung gemäß
Wird bei den Verhältnissen gemäß
Soll der Federteller 7 aus der gehäuseseitigen Endstellung gemäß
Claims (12)
dadurch gekennzeichnet,
characterized,
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CN116101790A (en) * | 2023-04-07 | 2023-05-12 | 合肥百川自动化科技有限公司 | Pneumatic pipeline conveyor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9203870U1 (en) * | 1992-03-23 | 1992-09-10 | Schmid, Paul, Rothrist, Ch | |
US20030093872A1 (en) * | 2001-10-10 | 2003-05-22 | Jebron Limited | Door closer |
EP1672156A1 (en) * | 2004-12-17 | 2006-06-21 | Dorma Gmbh & Co. Kg | Swinging door drive |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2535244C3 (en) | 1975-08-07 | 1985-01-24 | Geze Gmbh, 7250 Leonberg | Universal door closer |
DE8218608U1 (en) | 1982-06-29 | 1985-06-20 | Geze Gmbh, 7250 Leonberg | Door closer with adjustable closing force |
DE8801898U1 (en) | 1988-02-13 | 1988-03-24 | Gretsch-Unitas Gmbh Baubeschlaege, 7257 Ditzingen, De | |
DE19513433A1 (en) | 1995-04-08 | 1996-10-10 | Geze Gmbh & Co | Door closer for preferably revolving door, with energy accumulator |
DE19524777B4 (en) | 1995-07-07 | 2004-04-15 | Geze Gmbh | Door closer with adjustable preload of a closer spring |
US6282750B1 (en) | 1999-10-15 | 2001-09-04 | Ingersoll-Rand Architectural Hardware Group Limited | Power adjustment size indicator for a door closer |
DE102010030914B4 (en) | 2010-07-05 | 2016-04-28 | Geze Gmbh | Drive for a wing of a door, a window or the like and a method for mounting a device for changing the closing force of the drive |
DE102010017787A1 (en) | 2010-07-07 | 2012-01-12 | Dorma Gmbh + Co. Kg | Door closer or door drive |
-
2014
- 2014-03-24 EP EP14161299.4A patent/EP2924216B1/en not_active Revoked
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9203870U1 (en) * | 1992-03-23 | 1992-09-10 | Schmid, Paul, Rothrist, Ch | |
US20030093872A1 (en) * | 2001-10-10 | 2003-05-22 | Jebron Limited | Door closer |
EP1672156A1 (en) * | 2004-12-17 | 2006-06-21 | Dorma Gmbh & Co. Kg | Swinging door drive |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116101790A (en) * | 2023-04-07 | 2023-05-12 | 合肥百川自动化科技有限公司 | Pneumatic pipeline conveyor |
Also Published As
Publication number | Publication date |
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EP2924216B1 (en) | 2017-05-03 |
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