EP3103950A1 - Door drive - Google Patents

Abstract

Described and illustrated is a door drive (1) with a housing (2) and at least one regulating valve (3) for adjustably regulating a fluid flow within the door drive (1).

A door drive (1) which is suitable and cost-effective for a plurality of mounting positions is realized according to the invention in that the door drive (1) for the one regulating valve (3) or at least one of the regulating valves (3) has an associated engagement element (4) and an associated engagement element Gear (5), wherein the engagement element (4) at least two attacks (6), in particular for a tool, the engagement element (4) extends through the housing (2) such that the attacks (6) from outside the Housing (2) are operable and the transmission (5) converts a movement of the engaging element (4) in an adjustment of the associated regulating valve (3).

Description

The invention relates to a door drive with a housing and at least one regulating valve for adjustably regulating a fluid flow within the door drive. The invention further relates to a method for producing a door drive. The invention further relates to a method for adjusting the regulation of a fluid flow within a door drive.

Door operators known from the prior art have at least one regulating valve for adjustably regulating a flow of fluid within the door drive. The fluid to be regulated is usually a hydraulic oil. The regulating valve in this case regulates the fluid flow, for example by the regulating valve influencing the cross-sectional area of a fluid channel at at least one section of the fluid channel. A typical field of application are damping functions for damping the movement of the door leaf operatively connected to the door drive.

The setting of the regulating valves of a door drive is usually in the final assembly position, d. H. when the door operator is operatively connected to the door. This is necessary because a presetting of the regulating valves is not useful due to the large number of different doors with correspondingly different properties. A factory adjustment of the door drive to a special door variant is undesirable from a production point of view, since it is much cheaper to produce as few variants of a door drive. Furthermore, it may be necessary to adjust the regulation of the fluid flow after some time. It follows that in the mounting position of the door drive, the regulating valves for adjusting the regulation must be accessible to an operator. In order to protect the regulating valves from damage due to improper operation, the attacks of the regulating valves are made of robust materials, such as metal.

Door operators from the group of overhead door closers can be mounted with their housing both on the door leaf and on the door frame, on the door frame or on the wall in which the door is embedded. Furthermore, a distinction is made between the mounting on the hinge side or the tape opposite side, as well as the mounting on DIN left doors or DIN right doors.

A group of known from the prior art door drives has the disadvantage that at least two variants of the door drive must be made to cover all possible combinations of the previously described installation variants, as is not guaranteed with only one variant that in each case the regulating valves for setting the regulation are accessible to an operator. Alternative door drives from the prior art come with a variant of the door drive to cover all possible combinations of the previously described mounting variants, but have limited functionality. In particular, these door drives are not functional over a door opening angle of at least 180 °, since these door drives must use a symmetrical Hubkurvenscheibe, instead of an asymmetric Hubkurvenscheibe to reduce the number of variants from two to one.

Another group of door operators known from the prior art circumvents the disadvantage of the forced variant variety in that two regulating valves are provided for each regulation of a fluid flow in these door drives, wherein in the mounting position at least one of the regulating valves for adjusting the regulation for an operator is accessible , This in turn has the disadvantage that increased by the Number of components increase the cost of the door drive and reduces the reliability of the door drive. Furthermore, additional space in the door drive for the additional regulating valves and the associated hydraulic channels is necessary. Further, before the assembly in the mounting position no longer accessible regulating valves must be completely closed to adjust in the mounting position with the accessible control valves, the regulation of the fluid flows within the door drive can. It is particularly problematic when it becomes apparent in the mounting position that a no longer accessible regulating valve is not closed. In this case, the regulation of the corresponding fluid flow is limited or not possible, unless the door drive disassembled from its mounting position and the non-closed regulating valve is closed later.

Thus, it is the object of the invention to provide a door drive, which is suitable for several mounting positions and inexpensive. Furthermore, it is the object of the invention to provide a method for producing a door drive, which enables the production of a door drive in a cost effective and simple manner. It is a further object of the invention to provide a method of adjusting the regulation of fluid flow within a door operator which allows the adjustment of the regulation of fluid flow within a door drive in a simple manner.

The previously derived and indicated object is achieved on the basis of the door drive described above in that the door drive for a regulating valve or at least one of the regulating valves has an associated attack element and an associated gear, wherein the attack element has at least two attacks, in particular for a tool in that the engagement element extends through the housing such that the attacks can be operated from outside the housing and the transmission converts a movement of the engagement element into an adjustment of the associated regulating valve. This ensures that even if an attack of an attack element is hidden, for example, due to the mounting position and thus not operable, at least one other attack for an operator is still accessible. Advantageous developments of the invention are specified in the dependent claims, the description and in the figures.

This also ensures that the regulating valve or the regulating valves are better protected against damage, since they are adjusted only indirectly via the respective associated attack element and the respective associated gear and not directly, manually or with tools adjusted. Thus, rather than being made of metal, the regulating valve or valves may also be made from less robust but less expensive materials, such as plastic or die-cast zinc.

This also ensures that the adjustment of the regulating valve for the operator is easier, since by means of the transmission, a translation can be done with an advantageous ratio. The transmission ratio can in particular be chosen so that a movement of the engaging element is converted into a relative to the movement of the engaging element smaller adjustment of the regulating valve. This is a relief to the operator, since in this case lower accuracy and / or lower force is required in the operation of the attack.

The door drive may in particular be arranged directly on or in the door leaf, on or in a wall, on or in a door frame or on or in the floor.

The door drive may in particular be selected from the group of overhead door closers, door closers mounted in the door, the frame door closers or the floor door closers.

The door drive can be designed as a mechanical door drive or as an auxiliary power operated door drive.

Mechanical door drives are often referred to as door closers or door closing means with controlled closing sequence. A door closer is capable of storing at least a portion of the energy used during opening of the door by the door opener. After the door has been released by the user, the door closer can use the stored energy to automatically close the door leaf again.

An auxiliary door drive may be, in particular, an electromechanical and / or electrohydraulic and / or pneumatic door drive, whereby the door leaf, ie by means of an electromechanically, electrohydraulically and / or pneumatically generated auxiliary power, can be closed and / or opened. The auxiliary power can in this case be dimensioned such that the auxiliary power acts as a support, d. H. that the user has to expend a reduced own power when opening and / or closing the door. The auxiliary power can also be dimensioned such that the door is automatically opened by the assistant, d. H. that no intrinsic force has to be expended by the user in addition to the assistant. Preferably, the auxiliary power, in particular as a function of the opening angle of the door leaf, adjustable.

In the case of a failure of the auxiliary power, auxiliary door drives preferably continue to fulfill the functions of a mechanical door drive, in particular the function of automatically closing the door.

Door drives preferably have at least one safety device. The safety device can in particular limit the opening force and / or the opening speed. In particular, the safety device can monitor the swiveling range of the door leaf and trigger a safety function when a person or an object gets into the swiveling range of the door leaf. A safety function may include, for example, stopping the door leaf.

Door drives preferably have at least one monitoring device. The monitoring device may in particular have sensors that can detect dangerous environmental conditions, such. As fires, smoke or dangerous concentration of gases (eg carbon monoxide). The monitoring device can trigger a safety function after the detection of dangerous environmental conditions. For example, a security feature may include overriding an automatic opening function of the door.

The monitoring device and the safety device can be designed separately or be formed by a common device.

Door drives preferably have at least one pulse generator. The pulse generator can in particular give the command to open and / or close the door. The command given by the pulser is processed by a controller, with the controller controlling the door leaf movement commanded by the pulser. Pulse encoders are differentiated into conscious pulse generators (eg switches, pushbuttons), through which the door leaf movement is intentionally introduced, and unconscious pulse generators (eg light barriers, radar, contact mats), over which the door leaf movement is unconsciously initiated upon entering an area monitored by the pulser.

Furthermore, door drives can control or regulate the closing movement of the door leaf in such a way that the closing process can be delayed for a, in particular adjustable, time. This damping function is also referred to as closing delay.

According to a preferred embodiment of the door drive, the housing is formed substantially cuboid. On the housing decorative elements may be arranged which cover parts of the housing or even the housing substantially completely. The housing is preferably made of a material. In particular, the housing may be made of a metallic material. It is further preferred that the housing is formed in one piece. The housing can be formed by several sections. The housing may be at least partially made of plastic.

Furthermore, it can be provided that the attacks of the attack element or the attack elements are arranged such that in each mounting position of the door drive at least one attack per attack element is accessible to an operator. This ensures that in any mounting position each regulating valve is adjustable.

Furthermore, it can be provided that the attacks of the engagement element or at least one of the engagement elements are arranged on at least two different sides of the housing. Furthermore, it can be provided that the attacks of the attack element or at least one of the engagement elements are arranged on two opposite sides of the housing. For example, in a parallelepiped housing and an attack element with two attacks, an attack on the top of the housing and an attack on the bottom of the housing may be arranged or an attack on the back of the housing and an attack on the front of the housing or an attack on one end face of the housing and an attack on the other end face of the housing may be arranged.

Furthermore, it can be provided that the one engagement element or at least one of the several engagement elements has a shaft. This ensures that the attack element or the attack elements are produced, for example, by milling from one piece.

Furthermore, it can be provided that the one engagement element or at least one of the plurality of engagement elements is designed in several parts, in particular in two parts. This ensures that the engagement element, for example, is easy to produce from different materials. In particular, the attacks of a robust material, such as metal and the remainder of the engagement element can be made of a different material. Furthermore, it can be provided in this case that the individual parts of a multi-part attack element are independently movable and the associated gear converts a movement of a portion of the multi-part engagement element regardless of the movement of another part of the multi-part attack element in an adjustment of the associated control valve.

Furthermore, it can be provided that the one engagement element or at least one of the plurality of engagement elements runs in a bearing or thread. This ensures that the one attacking element or at least one of the attacking elements is securely guided in the housing. Furthermore, this can be used to control the frictional forces acting on an engagement element. Furthermore, by a bearing or thread, the degrees of freedom of movement of the guided in the bearing or thread engagement element to be controlled. For example, is determined by the slope of such a thread, the offset of the guided in the thread engaging element per revolution of the engaging element.

Furthermore, it can be provided that the one transmission or at least one of the plurality of transmissions interacts with the associated engagement element in such a way that the associated regulating valve can not be moved further in the direction of the closed position when it reaches its closed position. This ensures that the regulating valve is safely protected against harmful overadjustment. Furthermore, this can be dispensed with a stop to limit the adjustment of the regulating. For example, the engagement element may have an end position which it reaches when reaching the closed position of the regulating and in this end position in a freewheel, wherein the engagement element in the freewheel can be moved by the operator continues, but the movement of the engagement element not in an adjustment of the regulating is implemented.

Furthermore, it can be provided that the one transmission or at least one of the plurality of transmissions has an eccentric arranged on the associated engagement element, wherein the eccentric is in operative connection with the associated regulating valve. This ensures that the movement of the engaging element is reliably transmitted to the associated regulating valve.

Furthermore, it can be provided that the one transmission or at least one of the plurality of transmissions has a worm and a worm wheel engaging in the worm. This ensures that the movement of the engaging element is reliably transmitted to the associated regulating valve.

Furthermore, it can be provided that the one transmission or at least one of the plurality of transmissions has a toothed rack and a toothed wheel engaging in the toothed rack. This ensures that the movement of the engaging element is reliably transmitted to the associated regulating valve.

Furthermore, it can be provided that the one transmission or at least one of the several transmissions has a lever mechanism, in particular a rocker. This ensures that the movement of the engaging element is reliably transmitted to the associated regulating valve.

Furthermore, it can be provided that the longitudinal axis of the one regulating valve or at least one of the several regulating valves runs essentially perpendicular to the longitudinal axis of the associated engaging element. This ensures that the movement of the engaging element is reliably transmitted to the associated regulating valve.

Furthermore, it can be provided that the longitudinal axis of the one regulating valve or at least one of the several regulating valves runs essentially parallel to the longitudinal axis of the door drive. This ensures that the space within the door drive is used optimally possible. The longitudinal axis of the door drive can in this case be defined by the longitudinal axis of an energy accumulator arranged in the door drive, wherein the energy accumulator can be formed in particular by a spring, preferably a helical compression spring.

Furthermore, it can be provided that at least two of the regulating valves are arranged in a common bore. This ensures that the number of holes to be provided in the door drive is reduced. As a result, the production cost is further reduced. The regulating valves arranged in the one hydraulic channel can in this case regulate two independent fluid flows. Furthermore, it can be provided that the housing has at least one regulation module, wherein in the regulation module or in each of the regulation modules the one engagement element or at least one of the engagement elements is arranged. This ensures that the Reguliermodul can be made separately from the rest of the housing.

Furthermore, it can be provided that the one regulating module or at least one of the plurality of regulating modules is fastened to the remaining housing in particular detachably. This ensures that the engagement element and / or the transmission can be easily mounted, replaced and maintained. Further, the Reguliermodul can be pre-assembled independently of the rest of the housing, whereby the production of the door drive according to the invention is simplified.

Furthermore, it can be provided that the one regulating module or at least one of the several regulating modules is made of a different material than the rest of the housing. In this way, the material of a Reguliermoduls be chosen such that it has the required properties for its function as Reguliermodul. In particular, the Reguliermodul can be made of a low-cost material, such as plastic or zinc die-cast.

Furthermore, it can be provided that the one regulating valve or the regulating valves are arranged in the remaining housing. This ensures that, in contrast to the arrangement of the regulating valve in Reguliermodul, can be dispensed with a fluid seal between Reguliermodul and housing. The Reguliermodul is thus substantially free of hydraulic fluid. This results in the material of the Reguliermoduls other, usually lower requirements than the material of the rest of the housing, which costs can be reduced by means of a suitable material selection.

Furthermore, it can be provided that a movement of the regulating valve or the regulating valves out of the housing is blocked by the regulation module fastened to the housing and / or by the associated engagement element. This ensures that the regulating valve or the regulating valves are protected in particular from falling out of the housing. Falling out of the regulating valve from the housing would otherwise cause leakage of hydraulic fluid and possibly the destruction of the door operator.

Furthermore, it can be provided that the one regulating valve or at least one of the several regulating valves has an adjustment control.

Furthermore, it can be provided that the door drive has a cover element for at least one of the attacks, wherein the attack can be covered by the cover element. This ensures that the attack by covering the attack with the cover, in particular temporarily, not visible and / or not accessible, to protect the attack from unauthorized operation and possibly damage.

• Bereitstellen eines Türantriebs mit einem Gehäuse und wenigstens einem Regulierventil zur verstellbaren Regulierung eines Fluidstroms innerhalb des Türantriebs,
• Herstellen eines zugeordneten Angriffselements und eines zugeordneten Getriebes für das eine Regulierventil oder wenigstens eines der Regulierventile, wobei das Angriffselement wenigstens zwei Angriffe, insbesondere für ein Werkzeug, aufweist,
• Einsetzen des einen Angriffselements und Getriebes oder der Angriffselemente und Getriebe in das Gehäuse, so dass das eine Angriffselement oder die Angriffselemente sich derart durch das Gehäuse erstrecken, dass die Angriffe von außerhalb des Gehäuses bedienbar sind und durch das jeweilige Getriebe eine Bewegung des Angriffselements oder der Angriffselemente in eine Verstellung des zugeordneten Regulierventils umgesetzt wird.

The previously derived and indicated object is further achieved on the basis of the above-described method for producing a door drive in that the method comprises the following steps:

• Providing a door drive with a housing and at least one regulating valve for adjustably regulating a fluid flow within the door drive,
• Producing an associated engagement element and an associated gearbox for the one regulating valve or at least one of the regulating valves, wherein the engagement element has at least two attacks, in particular for a tool,
• Insertion of an attack element and gear or the attack elements and gear in the housing so that the one attack element or the attack elements extend through the housing such that the attacks are operated from outside the housing and by the respective gear movement of the attack element or the Attack elements is converted into an adjustment of the associated regulating valve.

This ensures that a door drive is made, in which even if an attack of the door drive, for example, due to the mounting position hidden and thus can not be operated, at least one other attack for an operator is still accessible.

Advantageous developments of the invention are specified in the dependent claims, the description and in the figures.

• Montieren des Türantriebs nach einem der Ansprüche 1 bis 13 an einer Tür
• Bedienen einer der Angriffe, insbesondere mittels eines Werkzeugs.

The previously derived and indicated object is further achieved by the method described above for adjusting the regulation of a fluid flow within a door drive, in that the method comprises the following steps:

• Mounting the door drive according to one of claims 1 to 13 on a door
• Serve one of the attacks, in particular by means of a tool.

Advantageous developments of the invention are specified in the dependent claims, the description and in the figures.

Features and details which are described in connection with the door drive according to the invention, also apply in connection with the inventive method and vice versa. The features mentioned in the description and in the claims may each be essential to the invention individually or in combination. In particular, a method that can be carried out with a door drive according to one of claims 1 to 13, and a door drive with which a method according to any one of claims 14 to 15 can be performed, provided under protection.

• Fig. 1 zeigt schematisch einen erfindungsgemäßen Türantrieb gemäß einer Ausgestaltung der Erfindung,
• Fig. 2 schematisch drei Angriffselemente mit zugeordneten Getrieben und Regulierventilen und
• Fig. 3 schematisch den Türantrieb der Fig. 1 in einer teilweisen Explosionsdarstellung.

The invention will be explained in more detail with reference to embodiments. Technical features with the same function are provided in the figures with identical reference numerals. Show it:

• Fig. 1 shows schematically a door drive according to the invention according to an embodiment of the invention,
• Fig. 2 schematically three attack elements with associated gears and regulating valves and
• Fig. 3 schematically the door drive of Fig. 1 in a partial exploded view.

In the Fig. 1 a door drive 1 is shown with a housing 2. Furthermore, three attack elements 4 are shown. The attack elements 4 each have two attacks 6. The engagement elements 4 extend through the housing 2 and are in a Reguliermodul 15 arranged. The Reguliermodul 15 is releasably secured to the remaining housing 2 via fastening means 8. The door drive 1 has an output shaft 9. The output shaft 9 penetrates the housing 2 and can be coupled at its two ends with a power transmission element, not shown. The power transmission element is used for power transmission between the door drive 2 and a door leaf or a wall. The term wall can in this case designate any object that is stationary relative to the door leaf. In particular, here also the door frame or the fighter is included.

Fig. 2 shows the in the Fig. 1 only visible with their attacks 6 attack elements 4. The Reguliermodul 15 and the rest of the housing 2 are not shown for clarity. Furthermore, the control elements 3 assigned to the attack elements 4 are shown. The attack elements 4 each have a shaft 7. The attacks 6 are located at the two ends of the attack elements 4. Each attack element 4 is a gear 5 assigned. The gear 5 cooperate with the respective associated attack elements 4 and regulating valves 3 such that a movement of a engagement element 4 is converted by the associated gear 5 in an adjustment of the respective associated control valve 3.

The right in the Fig. 2 shown attack element 4 is associated with a gear 5, which has a rack 12 and a gear 13. The gear 13 meshingly engages the rack 12. The middle in the Fig. 2 shown attack element 4 is associated with a gear 5, which has a worm 10 and a worm wheel 11. The worm wheel 11 meshes with the worm 10. The left in the Fig. 2 shown attack element 4 is associated with a gear 5, which has a rocker 14. The rocker 14 acts as a lever mechanism for implementing the movement of the associated engagement element 4 in a movement of the associated regulating valve third

Fig. 3 shows the door drive 1 of Fig. 1 in a perspective view with an exploded view of the Reguliermoduls 15. The attack elements 4 are arranged in the Reguliermodul 15 and there are three of the attacks 6 of the attack elements 4 visible. The regulating valves 3 are arranged within the remaining housing 2. The gear 5 are not shown. The door drive 1 can be attached either with its top, or with its invisible bottom to the door or the wall. In both cases, an attack 6 per attack element 4 is always accessible to an operator.

LIST OF REFERENCE NUMBERS

1

door drive

2

casing

3

regulating

4

engaging member

5

transmission

6

attack

7

wave

8th

fastener

9

output shaft

10

slug

11

worm

12

rack

13

gear

14

seesaw

15

Reguliermodul

Claims (15)

Door drive (1) having a housing (2) and at least one regulating valve (3) for adjustably regulating a fluid flow within the door drive (1),
characterized in that
the door drive (1) for the one regulating valve (3) or at least one of the regulating valves (3) has an associated engagement element (4) and an associated transmission (5), wherein the attack element (4) at least two attacks (6), in particular for a tool comprising, the engagement element (4) extends through the housing (2) such that the attacks (6) from outside the housing (2) are operable and the transmission (5) movement of the engagement element (4) in one Adjustment of the associated regulating valve (3) converts. Door drive (1) according to one of the preceding claims, characterized in that the attacks (6) of the engaging element (4) or the engagement elements (4) are arranged such that in each mounting position of the door drive (1) at least one attack (6) each Attack element (4) is accessible to an operator. Door drive (1) according to one of the preceding claims, characterized in that the one attack element (4) or at least one of the plurality of engagement elements (4) extends in a bearing or thread. Door drive (1) according to one of the preceding claims, characterized in that the one gear (5) or at least one of the plurality of gear (5) with the associated engagement element (4) cooperates such that the associated regulating valve (3) upon reaching its closed position can not be adjusted further in the direction of the closed position. Door drive (1) according to one of the preceding claims, characterized in that the one gear (5) or at least one of the plurality of gear (5) has an eccentric arranged on the associated engagement element (4), wherein the eccentric with the associated regulating valve (3) is in active connection. Door drive (1) according to one of the preceding claims, characterized in that the one gearbox (5) or at least one of the plurality of gearboxes (5) has a worm (10) and a worm wheel (11) engaging in the worm (10). Door drive (1) according to one of the preceding claims, characterized in that the one gear (5) or at least one of the plurality of gear (5) has a rack (12) and a gear (13) engaging in the rack (12). Door drive (1) according to one of the preceding claims, characterized in that the one gear (5) or at least one of the plurality of gear (5) has a lever mechanism, in particular a rocker (14). Door drive (1) according to one of the preceding claims, characterized in that the longitudinal axis of the one regulating valve (3) or at least one of a plurality of regulating valves (3) substantially perpendicular to the longitudinal axis of the associated engagement element (4). Door drive (1) according to any one of the preceding claims, characterized in that the housing (2) has at least one Reguliermodul (15), wherein in the Reguliermodul (15) or in each of the Reguliermodule (15) the attack element (4) or at least one of the attack elements (4) is arranged. Door drive (1) according to one of the preceding claims, characterized in that the one Reguliermodul (15) or at least one of the plurality Reguliermodule (15) on the remaining housing (2) is in particular releasably secured. Door drive (1) according to one of the preceding claims, characterized in that the one regulating valve (3) or the regulating valves (3) in the remaining housing (2) are arranged. Door drive (1) according to one of the preceding claims, characterized in that a movement out of the regulating valve (3) or the regulating valves (3) from the housing (2) by the on the housing (2) mounted Reguliermodul (15) and / or by the associated attack element (4) is blocked. Method for producing a door drive (1), characterized in that the method comprises the following steps: - Providing a door drive (1) with a housing (2) and at least one regulating valve (3) for adjustably regulating a fluid flow within the door drive (1), - Making an associated attack element (4) and an associated transmission (5) for a regulating valve (3) or at least one of the regulating valves (3), wherein the engagement element (4) at least two attacks (6), in particular for a tool having . - Insertion of a attack element (4) and transmission (5) or the attack elements (4) and transmission (5) in the housing (2), so that the one attack element (4) or the engagement elements (4) so through the housing (2) extend that the attacks (6) from outside the housing (2) are operable and by the respective gear (5) a movement of the engaging element (4) or the engagement elements (4) in an adjustment of the associated regulating valve (3) is implemented. Method for adjusting the regulation of a fluid flow within a door drive (1), characterized in that the method comprises the following steps: - Mounting the door drive (1) according to one of claims 1 to 13 on a door - Operating one of the attacks (6), in particular by means of a tool.

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