EP3388610A1 - Shaft assembly, closure or protection device and assembly set - Google Patents

Abstract

The disclosure relates to a shaft assembly (74) for a protective or locking device (10), in particular for a roller shutter, a roller shutter or an awning, wherein the shaft assembly (74) comprises a hollow shaped hollow profile body (80) about its longitudinal axis (86). rotatable and adapted for receiving a tank (26) or a web, and a drive unit (90) which is at least partially disposed in the hollow profile body (80), wherein the shaft assembly (74) between a first support (76) and a second Support (78) is receivable, wherein the drive unit (90) has an output (98) for rotational drive of the hollow profile body (80), wherein the hollow profile body (80) has a first end (82) and a second end (84) and between the first support (76) and the second support (78) extends, wherein at least at the first end (82) or at the second end (84) of the hollow profile body (80) with the hollow profile body (80) coupled Verbi ment sleeve (126, 128) is provided, wherein between the hollow profile body (80) and the connecting sleeve (126, 128), a biasing member (138, 140) is arranged, and wherein the connecting sleeve (126, 128) against a by the biasing member (138 , 140) applied force relative to the hollow profile body (80) is axially displaceable.

Description

The present disclosure relates to a shaft assembly for a closure or protection device, in particular for a roller shutter, a roller shutter or an awning, wherein the shaft assembly has a hollow shaped hollow profile body which is rotatable about its longitudinal axis and adapted to receive a tank or a track, and a Drive unit which is at least partially disposed in the hollow profile body, wherein the shaft assembly between a first support and a second support is receivable, wherein the drive unit has an output for rotational drive of the hollow profile body, wherein the hollow profile body between the first support and the second support extends and a first end facing the first support and having a second end facing the second support, wherein at least at the first end or at the second end of the hollow profile body provided with the hollow profile body coupling sleeve is, where between the hollow profile body and the connecting sleeve, a biasing element is arranged, and wherein the connecting sleeve is axially displaceable against a force applied by the biasing member relative to the hollow profile body.

Such a shaft assembly is from the DE 10 2014 003 494 A1 and the DE 10 2005 034 063 B3 relating to roller shutter shaft assemblies. Furthermore, the show DE 199 33 124 A1 and the DE 39 20 200 A1 similar designs for roller shutters, but which are provided with belt drives and not with integrated tubular motors.

Another similar assembly is from the EP 0 479 719 B1 known, which discloses a retractor for roller blinds, shutters or the like, which has a roll-up tube and an output which is rotatably coupled to the roll-up tube, wherein inside the roll-up tube, a motor is provided, which is supported on one side on a wall. In particular, the engine is designed as a tubular motor.

Shaft assemblies of the type described herein may also be generically referred to as a retractor and are typically designed to controllably wind or unwind a closure unit in the form of a so-called armor having various members to cover or release an opening.

The construction described above according to the EP 0 479 719 B1 has the advantage that the drive unit is hardly or not visible from the outside, and that the drive unit requires almost no additional space. On the one hand, this simplifies the retrofitting of older locking devices (roller shutters, blinds, segment gates or roller shutters), since no major structural changes are required.

However, it has been found that the assembly of such a shaft assembly is still very expensive. This applies to new installations as well as conversions and repairs. A mounting dimension for the shaft assembly is usually through the existing opening (window, door or the like) and by appropriate Recesses in the wall and / or specified by given dimensions of a box. Usually, just in an axial direction (along the longitudinal axis of the hollow profile body) only little space provided, already due to the fact that, for example, the tank of a roller shutter must be so wide that in cooperation with corresponding lateral guide rails, a complete closure of the opening is possible.

In the case of a conversion or new installation, the shaft assembly can be mounted in a partially or completely unwound state, so that about the hollow profile body is at least partially (radially) accessible. However, repair failure often involves a condition where the shaft assembly is completely or nearly completely wound up. Thus, the tank is wound around the hollow profile body. Thus, the hollow profile body is not accessible.

In the operation of the protection or closure device is to be expected considerable temperature fluctuations (day / night or summer / winter). This can lead to not inconsiderable temperature expansions in the components used, which can have a negative effect on the operating behavior. Furthermore, it has been observed that, for example, due to the setting of structures and / or other external influences, the ease of movement of the device can be impaired. It is conceivable, for example, that the device is mounted or adjusted very precisely and smoothly during an initial assembly. However, if changes due to external influences occur, the ease is no longer given. This can be reflected in increased wear, increased energy consumption and reduced life.

Against this background, the disclosure has the object of specifying a shaft assembly for a closure or protection device, in particular for a roller shutter, a roller shutter or an awning, which is easy to assemble and reduces the risk of incorrect installation and incorrect settings. In particular, it is preferred if the assembly of the shaft assembly can take place more quickly, for example by the elimination of additional work steps. Finally, a safe, low-fault installation should be ensured, which preferably prevents an automatic release.

In addition, the shaft assembly should be suitable both for new installations as well as retrofits / conversions. Accordingly, the shaft assembly should be designed such that an adaptation to given space, especially at given widths is readily possible. In addition, the shaft assembly should be designed so that even with poor accessibility, such as in a roller shutter box or a window recess, a simple assembly and disassembly is possible.

In addition, the shaft assembly should be as self-adjusting as possible, especially with regard to their axial position. This should further contribute to the fact that the assembly and in particular adjustment work can be simplified or at least partially superfluous.

Finally, the present disclosure has for its object to provide a closure or protection device, in particular a roller shutter, a roller shutter or an awning, which is provided with such a shaft assembly. In addition, a mounting kit for flexible mounting of a shaft assembly is specified, which is particularly suitable for retrofitting and / or for repair purposes.

This object is achieved with a shaft assembly according to the aforementioned type in that on the hollow profile body, a pressure piece is supported on which the biasing element is supported, wherein the pressure piece can be coupled to a pipe section of the connecting sleeve, and that the biasing element is designed as a spring, concentric with Pipe section of the connecting sleeve and is arranged outside the pipe section, and that the pipe section provides a guide for the pressure piece and the biasing member.

The object of the invention is completely solved in this way.

Namely, it is proposed according to the invention to make the connecting sleeve, which is arranged between the hollow profile body and the support, displaceable against a biasing force, so that the connecting sleeve for the purpose of Assembly or disassembly is at least partially inserted into the hollow profile body. This has the advantage that after relieving an engagement or engagement of the shaft assembly (outward) in a given (axial) space is easily possible. This applies in principle in a fully wound state of the hollow profile body and also in a completely or partially unwound state of the hollow profile body. In particular, the design with the sliding against the force of the biasing element connecting sleeve allows assembly or disassembly without it being absolutely necessary to make the hollow profile body radially accessible, for example, to fasten screws, mounting pins or the like radially. This is basically no longer necessary.

On the hollow profile body, a pressure piece is receivable, on which the biasing element is supported, wherein the pressure piece can be coupled to a pipe section of the connecting sleeve. Thus, the biasing member can be supported axially on the one hand on the collar of the connecting sleeve and on the other hand on the pressure piece. The pressure piece increases the axial end face of the hollow profile body, so that sufficient axial engagement surface is available for the biasing element. This has the advantage that the hollow profile body can continue to be thin-walled and designed as an endless profile.

The biasing member is configured as a spring, concentric with the tube portion of the coupling sleeve and disposed outside the tube portion, wherein the tube portion provides a guide for the pressure piece and the biasing member. In this way, the biasing element can be easily and inexpensively designed as a compression spring. The biasing member does not penetrate according to this embodiment in the interior of the hollow profile body when the connecting sleeve is at least partially inserted into the interior of the hollow profile body. Further, this design prevents kinking or other evasion of the biasing member.

Another advantage of the above design is that the shaft assembly is self-aligning. Since a biasing element is arranged between the hollow profile body and the connecting sleeve, which applies an axial biasing force, the shaft assembly - axially considered - automatically adapts to given Installation conditions, if the fitter or worker no longer applied axially acting force.

For the purposes of the present disclosure, the shaft assembly may also be generally referred to as a retractor or winder. For the purposes of the present disclosure, the term assembly includes both assembly and disassembly. Furthermore, repairs, maintenance and the like are included.

In the context of the present disclosure, embodiments and designs of the shaft assembly are illustrated by means of shutters. This is not meant to be limiting and, in particular, does not preclude use in awnings or similar sunscreen, rain cover, privacy and the like.

The connection sleeve can also be generally referred to as a bearing sleeve or telescopic sleeve. The connecting sleeve and the hollow profile body are at least partially telescopic. In this way, the connection sleeve serves as an assembly aid, since in a simple manner, an axial "upsetting" of the shaft assembly is made possible, so that a positive reception can be generated by engagement with the first support and the second support.

The hollow profile body is not necessarily designed rotationally symmetric or even cylindrical. Instead, the hollow profile body is regularly designed as a polygonal profile, such as square profile, hexagonal profile, or octagonal profile. Alternatively, the hollow profile body may have a round profile or a round profile provided with a groove. Other profile shapes of other types are conceivable.

The above-described design allows a kind of self-balancing or even floating recording of the hollow profile body between the first support and the second support. This applies in particular to the case that both at the first end and at the second end of the hollow profile body such Connecting sleeve is provided which can be inserted against a biasing force in the hollow profile body.

The first end and / or the second end of the hollow profile body can be supported indirectly or directly on the first support or on the second support. For example, the first support serves as a pivot bearing for the hollow profile body. Accordingly, the second support may be designed as a rotary armature for the drive unit. According to this embodiment, for example, the second end of the hollow profile body is coupled via the connecting sleeve with the drive unit, wherein the drive unit is fixed to the second support. At least the first support, which is for example provided with a pivot bearing or can be coupled, can be referred to as a bearing plate.

It is understood that the use of ordinal numbers, such as first end, second end, first support, second support, etc. is for illustrative purposes only and for purposes of distinction. Terms such as "first," "second," and the like are not intended to imply mandatory order, rating, or weight. The subject matter of the disclosure encompasses designs of the shaft assembly which have two connecting sleeves in the sense of the above configuration, as well as embodiments which have only a single connecting sleeve which is coupled to a corresponding biasing member which is interposed between the connecting sleeve and the hollow profile body. Accordingly, designs of the shaft assembly are conceivable, which have only a second connection sleeve at the second end of the hollow profile body.

In this respect, the terms "first" and "second" are arbitrary and, above all, chosen for the purpose of differentiation. Accordingly, for purposes of distinction, instead of "first element" and "second element", the term "right element" and "left element" could also be chosen, although this is not to be understood as limiting.

For the purposes of the present disclosure, the term "first end" designates the end of the hollow profile body associated with the first support which designed as a pivot bearing for the hollow profile body. Accordingly, the term "second end" refers to that end of the hollow profile body which is assigned to the motor-side or drive-side second support. Exemplary designs in the sense of the present disclosure describe elements which can be provided both at the first end and at the second end. In this respect, the concrete designation "first" or "second" should not be understood as limiting.

In the drive unit is a so-called tubular motor, which in addition to an electric motor in principle may also have a reduction gear. Furthermore, the drive unit may comprise a control module. Furthermore, the drive unit may comprise sensors. On the drive unit, in particular on a drive housing, a bearing for the second end of the hollow profile body may be formed.

According to an exemplary embodiment of the shaft assembly, the connection sleeve has a collar on which the biasing element is supported at its end facing away from the hollow profile body end. The waistband can also be called a collar. The collar usually extends radially outward.

According to a further embodiment of the shaft assembly of the pipe section of the connecting sleeve immersed with increasing compression of the biasing member axially into the hollow profile body. In this way, the entire shaft assembly can be axially compressed or telescoped to allow for assembly.

In the assembled or preassembled state, the biasing member is seated on the pipe section of the connecting sleeve between the collar of the connecting sleeve and the pressure piece, which is also receivable on the connecting sleeve.

According to a further embodiment of the shaft assembly, the pressure piece is non-rotatably connectable to the hollow profile body, wherein the pressure piece is further rotatably coupled to the connection sleeve. For example, the pressure piece a Profile, which is adapted to an inner profile of the hollow profile body to allow a rotational drive. Between the pressure piece and the hollow profile body Drehitnahmeelemente may be formed, which are designed as webs and corresponding grooves. This has the advantage that during rotation of the hollow profile body when winding or unwinding of the tank also takes place directionally and in terms of magnitude substantially the same rotation of the connecting sleeve. Thus, there is no (substantial) relative rotation between the connecting sleeve, the pressure piece and the hollow profile body.

The exact rotational coupling or rotational position coupling is important for limit switches and similar safety devices, which serve as anti-pinch protection. In this way, further unfavorable friction can be avoided, which could occur in a partial twisting of the biasing member about the longitudinal axis. The hollow profile body is further defined stored between the first support and the second support added.

According to a further embodiment of the shaft assembly, a snap connection is provided between the pressure piece and the connecting sleeve to couple the pressure piece axially displaceable and captive with the connecting sleeve. This is preferably done with the interposition of the biasing element. Thus, a pre-assembly of such a mounting unit can be carried out, which comprises the connecting sleeve, the pressure piece and the biasing member in an advantageous manner. Preferably, the snap connection is designed such that the biasing force of the biasing member can not cause unintentional release of the snap connection.

The subassembly assembly unit described is particularly suitable for retrofitting already existing facilities, since ideally no or only insignificant changes are required at the outer interfaces, ie at the first support, second support, the hollow profile body and / or the drive unit.

According to a further exemplary embodiment of the shaft assembly corresponding rotary driving elements are provided on the pipe section and on the pressure piece. The rotational drive elements can in particular have the form of grooves and webs.

According to a further exemplary design of the shaft assembly, the connection sleeve, the biasing element and the pressure piece do not protrude, or only insignificantly, beyond an outer circumference or an envelope of the hollow profile body. In other words, the ability of the hollow profile body for receiving the tank or other winding is not affected. An envelope around the hollow profile body can be understood as a circle or cylinder, the outer points of the hollow profile body, which is usually designed as a polygonal profile, interconnected. Preferably, the connection sleeve, the biasing element and the pressure piece do not protrude or at least not substantially radially outwardly beyond this enveloping circle or jacket. The tubular design of the shaft assembly is retained. Furthermore, the ability to overwind / wrap the hollow profile body with the tank and / or the track is maintained.

According to a further exemplary embodiment of the shaft assembly, the hollow profile body is supported at its first end via a first connection sleeve on the first support, wherein the connection sleeve has a receptacle in the form of a bearing seat or an axle socket. Preferably, the connection sleeve has a combined receptacle which provides both a bearing seat and an axle socket.

This connection sleeve is referred to for distinction purposes as the first connection sleeve. In principle, two variants are conceivable for coupling the first connection sleeve to the first support. On the one hand, the connecting sleeve may itself have a bearing seat in which a bearing, such as a roller bearing (ball bearings, roller bearings or the like.) Can be received. Thus, for example, a bolt would be formed on the first support, on which the connecting sleeve can be inserted with the recorded in the bearing seat bearing.

According to an alternative embodiment, the bearing or rolling bearing is received via its outer circumference directly on the first support. Accordingly, an axle is provided, which is inserted into the axle socket of the connecting sleeve. Then, the connection sleeve can be inserted via the axis in the bearing on the bearing seat.

Preferably, the end face of the connecting sleeve facing the first support is designed both as a bearing seat and as an axle mount. This reduces the variety of parts, the manufacturing costs and logistics costs. The combination sleeve provided with the combined receptacle provides a two-in-one solution for receiving on the first support.

Accordingly, by way of example, the bearing seat is offset axially from the axle socket, wherein a seat diameter of the bearing seat is greater than a receiving recess of the axle socket. With regard to the end of the first connection sleeve, which faces the first support, the bearing seat is initially provided, wherein the axle mount is axially offset behind it.

According to a further exemplary embodiment of the shaft assembly, the hollow profile body is supported at its second end via a second connecting sleeve on the drive unit and via the drive unit on the second support. In other words, the second connection sleeve is interposed between the hollow profile body and the drive unit. Here, too, the design is advantageous, at least in some embodiments, in that nothing essential changes at the established and known interfaces of the drive unit and the hollow profile body. It is understood that these embodiments do not preclude deviating embodiments in which a different geometry is deliberately chosen.

According to a further exemplary embodiment of the shaft assembly, the drive unit has a rotary driver, which is coupled to the movement entrainment with the hollow profile body, wherein the drive unit is coupled to a Drehlagensensoreinheit. Preferably, the rotational position sensor unit detects a rotational position of the rotational driver and compares this with a rotational position of the output.

In other words, the drive unit thus serves on the one hand as a (second) bearing for the hollow profile body, since the hollow profile body can rotate about the connecting sleeve about the drive unit (or about a housing of the drive unit). Furthermore, in this way, a blocking detection or a pinch protection can be realized when the rotational position is compared at the output with the rotational position of the rotary driver. Rotary position differences can be detected via the rotary position sensor unit. Significant differences in the rotary position of the rotary driver and the output are indicators of an imbalance of the tank.

According to a further embodiment of the shaft assembly, the rotary driver has at least one rotational drive element, which can be coupled for rotational drive with the connecting sleeve. Also, according to this configuration, the rotational movement of the hollow profile body is transmitted via the pressure piece on the connecting sleeve, so that the rotary driving element is substantially non-rotatably connected to the hollow profile body, although the Drehmitnahmeelement and the hollow profile body, the connecting sleeve and the pressure piece are interposed.

Also at the second end, so for coupling the hollow profile body with the drive unit, a mounting unit is provided, which is referred to for discriminating purposes as a second mounting unit. The second mounting unit comprises a connecting sleeve, a pressure piece and a biasing member which is arranged therebetween, wherein preferably the pressure piece is received via a snap connection to a pipe section of the connecting sleeve.

According to a further exemplary embodiment of the shaft assembly, the first end is supported on the first support, wherein the second end is supported on the drive unit, wherein the drive unit is supported on the second support, wherein the output of the drive unit coupled via an adapter piece for rotational driving with the hollow profile body is, and wherein the adapter piece is arranged in the interior of the hollow profile body. The force application for transmitting the drive torque to the hollow profile body can take place in a central region between the first end and the second end. Both at the first end and at the second end of the hollow profile body can take place a compensating movement and a telescopic movement, to simplify the assembly. It is not necessary to fix the adapter piece axially relative to the hollow profile body.

The drive unit preferably has a motor and a transmission, which are arranged in a drive housing. The drive housing also serves as a housing for the rotary driver of the drive unit, which provides a rotary bearing for the hollow profile body, wherein the coupling takes place with the interposition of a connecting sleeve and a pressure piece. About the rotary driver, the rotational movement of the hollow profile body can be tapped.

• eine erste Verbindungshülse, die einem ersten Auflager und einem ersten Ende eines Hohlprofilkörpers zugeordnet ist, und/oder eine zweite Verbindungshülse, die einer Antriebseinheit und einem zweiten Ende des Hohlprofilkörpers zugeordnet ist,
• zumindest ein Druckstück, das sowohl zwischen der ersten Verbindungshülse und dem Hohlprofilkörper als auch zwischen der zweiten Verbindungshülse und dem Hohlprofilkörper einsetzbar ist, wobei das Druckstück eine Drehmitnahme zwischen dem Hohlprofilkörper und der jeweiligen Verbindungshülse erlaubt, und
• zumindest ein Vorspannelement, insbesondere ein als Schraubenfeder ausgeführtes Vorspannelement, das sowohl zwischen einem Bund der ersten Verbindungshülse und dem zugeordneten Druckstück als auch zwischen einem Bund der zweiten Verbindungshülse und dem zugeordneten Druckstück aufnehmbar ist,
  wobei die erste Verbindungshülse und die zweite Verbindungshülse zu Montagezwecken gegen die Kraft des Vorspannelements in den Hohlprofilkörper einführbar sind,
  wobei das Vorspannelement als Feder gestaltet ist, konzentrisch zum Rohrabschnitt der Verbindungshülse und außerhalb des Rohrabschnitts angeordnet ist, und wobei der Rohrabschnitt eine gemeinsame Führung für das Druckstück und das Vorspannelement bereitstellt.

In another aspect, the present disclosure relates to a mounting kit for flexibly mounting a shaft assembly, in particular a retractor for a closure or guard, comprising:

• a first connection sleeve, which is assigned to a first support and a first end of a hollow profile body, and / or a second connection sleeve, which is assigned to a drive unit and a second end of the hollow profile body,
• at least one pressure piece, which is insertable both between the first connection sleeve and the hollow profile body and between the second connection sleeve and the hollow profile body, wherein the pressure piece allows a rotational drive between the hollow profile body and the respective connection sleeve, and
• at least one biasing element, in particular a biasing element designed as a helical spring, which can be received both between a collar of the first connection sleeve and the associated pressure piece and between a collar of the second connection sleeve and the associated pressure piece,
  wherein the first connection sleeve and the second connection sleeve are insertable for assembly purposes against the force of the biasing member in the hollow profile body,
  wherein the biasing element is configured as a spring, is arranged concentrically to the pipe section of the connection sleeve and outside the pipe section, and wherein the pipe section provides a common guide for the pressure piece and the biasing member.

In this way, a simple assembly and disassembly with little tooling is possible.

In this embodiment, a connecting sleeve, a pressure piece and a biasing member each form a mounting unit. Overall, a first mounting unit and a second mounting unit are possible, wherein the first mounting unit is associated with the first end and the second mounting unit is associated with the second end of the hollow profile body.

Embodiments of the mounting kit are conceivable which have only the first mounting unit or the second mounting unit. The advantages of the present disclosure are already apparent when using only a telescoping connection sleeve, either at the first end or at the second end. If two connecting sleeves, so two mounting units, are provided, even larger axial movements are possible to simplify assembly or disassembly. Furthermore, when using two such mounting units results in a "floating" self-compensating axial bearing of the shaft assembly. The biasing forces of the two biasing element counteract each other.

By way of example, one and the same spring can be used both in the first assembly unit and in the second assembly unit. Preferably, one and the same pressure piece is usable both at the first end and at the second end of the hollow profile body.

By way of example, at least the collar and the pipe section of the connecting sleeves are designed identically. In other words, at least one radial outer contour of the connecting sleeves is similar, for example, so that the use of tools with interchangeable inserts for the production is conceivable.

The pressure piece, the first connection sleeve and the second connection sleeve are manufactured, for example, by means of injection molding. However, an additive manufacturing or additive manufacturing is conceivable, for example by means of 3D printing process. This can especially affect spare parts, retrofit solutions and other batches with small production sizes.

With regard to the first connection sleeve which can be coupled to the first end of the hollow profile body, the design of the hollow profile body facing away from the end, which faces the first support, there advantageous, that there on the one hand a bearing seat and at the same time an axle mount or axle is provided. Thus, an adaptation to different types of supports (end shields) can be ensured there with one and the same design.

• ein erstes Auflager,
• ein zweites Auflager, und
• eine Wellenbaugruppe gemäß einem der hier beschriebenen Ausführungsbeispiele, die zwischen dem ersten Auflager und dem zweiten Auflager aufgenommen ist, wobei die Wellenbaugruppe zum Zwecke der Montage gegen eine Vorspannkraft axial teleskopierbar ist.

According to a further aspect, the present disclosure relates to a closure or protection device, in particular a roller shutter or a roller shutter, which has the following:

• a first support,
• a second support, and
• a shaft assembly according to one of the embodiments described herein, which is received between the first support and the second support, wherein the shaft assembly is axially telescopically for the purpose of mounting against a biasing force.

It is understood that the features of the invention mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the present invention.

Fig. 1

einen Längsschnitt durch eine allgemeine Ausführungsform einer als Rollladen ausgeführten Verschlusseinrichtung im Bereich einer Wellenbaugruppe;

Fig. 2

eine gebrochene Darstellung einer Ausführungsform einer Wellenbaugruppe gemäß der vorliegenden Offenbarung;

Fig. 3

eine perspektivische gebrochene Teildarstellung eines Randbereichs einer Wellenbaugruppe gemäß der in Fig. 2 gezeigten Ausgestaltung;

Fig. 4

eine seitliche Teildarstellung einer Montageeinheit für einen Hohlprofilkörper einer Wellenbaugruppe in einem ersten, ausgerückten Zustand;

Fig. 5

eine weitere Darstellung der Anordnung gemäß Fig. 4 in einem zweiten, eingerückten Zustand der Montageeinheit;

Fig. 6

einen seitlichen Schnitt durch eine Ausführungsform einer Verbindungshülse;

Fig. 7

eine perspektivische Darstellung der Verbindungshülse gemäß Fig. 6 in einer ersten Orientierung;

Fig. 8

eine perspektivische Darstellung der Verbindungshülse gemäß Fig. 6 in einer zweiten Orientierung;

Fig. 9

einen seitlichen Schnitt durch eine weitere Ausführungsform einer Verbindungshülse;

Fig. 10

eine perspektivische Darstellung der Verbindungshülse gemäß Fig. 9 in einer ersten Orientierung;

Fig. 11

eine perspektivische Darstellung der Verbindungshülse gemäß Fig. 9 in einer zweiten Orientierung;

Fig. 12

eine Seitenansicht einer Ausführungsform eines Druckstücks;

Fig. 13

eine frontale Ansicht des Druckstücks gemäß Fig. 12;

Fig. 14

eine perspektivische Ansicht des Druckstücks gemäß Fig. 12 in einer ersten Orientierung; und

Fig. 15

eine perspektivische Ansicht des Druckstücks gemäß Fig. 12 in einer zweiten Orientierung.

Further features and advantages of the disclosure will become apparent from the following description of several exemplary embodiments with reference to the drawings. Show it:

Fig. 1

a longitudinal section through a general embodiment of a designed as a roller shutter closure device in the range of a shaft assembly;

Fig. 2

a broken view of an embodiment of a shaft assembly according to the present disclosure;

Fig. 3

a perspective broken fragmentary view of a peripheral region of a shaft assembly according to the in Fig. 2 embodiment shown;

Fig. 4

a partial side view of a mounting unit for a hollow profile body of a shaft assembly in a first, disengaged state;

Fig. 5

a further illustration of the arrangement according to Fig. 4 in a second, engaged state of the mounting unit;

Fig. 6

a lateral section through an embodiment of a connecting sleeve;

Fig. 7

a perspective view of the connecting sleeve according to Fig. 6 in a first orientation;

Fig. 8

a perspective view of the connecting sleeve according to Fig. 6 in a second orientation;

Fig. 9

a lateral section through a further embodiment of a connecting sleeve;

Fig. 10

a perspective view of the connecting sleeve according to Fig. 9 in a first orientation;

Fig. 11

a perspective view of the connecting sleeve according to Fig. 9 in a second orientation;

Fig. 12

a side view of an embodiment of a pressure piece;

Fig. 13

a frontal view of the pressure piece according to Fig. 12 ;

Fig. 14

a perspective view of the pressure piece according to Fig. 12 in a first orientation; and

Fig. 15

a perspective view of the pressure piece according to Fig. 12 in a second orientation.

Fig. 1 illustrated by a longitudinal section of an exemplary embodiment of a closure device 10. The closure device 10 is designed as a roller shutter, roller shutter, blind or segment gate / gate. The closure device 10 is housed fixed to a wall 12. It is understood that the inclusion of the closure device 10 can also be done on the ceiling, on boxes and in a similar manner.

Fig. 1 FIG. 1 illustrates a conventional embodiment of the closure device 10, which may be used, for example, in the EP 0 479 719 B1 is described.

Embodiments of shaft assemblies according to the present disclosure will be described with reference to FIGS Fig. 2 to 15 detailed and described, wherein each of the in Fig. 1 illustrated exemplary installation situation is turned off.

In Fig. 1 the closure device 10 comprises a first support 14 and a second support 16, which are received in each case on opposite walls 12 in the embodiment. In the first bearing 14, a rolling bearing 18 is provided, which supports an axle 20.

The closure device 10 includes a shaft assembly 24 received between the first support 14 and the second support 16. The shaft assembly 24 is supported via the axis 20 on the roller bearing 18 on the first support 14. The shaft assembly 24 is for receiving, winding and handling a tank 26. The tank 26 includes a plurality of members 28 which are hinged together. Accordingly, the tank 26 can be wound around a hollow profile body 30 of the shaft assembly 24, or be unwound from this. Alternative embodiments of the device 10 include the design as a protective device, in particular as awning for sun protection, privacy, rain, or the like. Accordingly, it is basically conceivable, instead of the tank 26, a web, such as a fabric or film web, up and unwind.

The hollow profile body 30 comprises a first end 32 and a second end 34. The first end 32 faces the first support 14. The second end 34 faces the second support 16.

Furthermore, a drive unit 40 is provided which comprises a drive housing 42. The drive housing 42 is rotatably received on the second support 16. In other words, the second support 16 serves as a torque support for a motor 44 of the drive unit 40. The motor 44 is accommodated in the drive housing 42. Furthermore, the drive unit 40 comprises a gear 46. The motor 44 is coupled via the gear 46 with an output 48, which is also referred to as sprouting. The output 48 is coupled to a driver 50, which is connected for rotational drive with the hollow profile body 30 about its longitudinal axis. For this purpose, a fastening means is provided, here for example in the form of a screw 52, which couples the driver 50 with the hollow profile body 30. It is understood that the attachment with the screw 52 or a similar fastener is required only occasionally.

The drive unit 40 is supported on the second support 16. When the engine 44 is active, an output motion of the engine is transmitted via the gear 46 to the output 48 and via the driver 50 to the hollow profile body 30. Then, the tank 26 can be wound or unwound, depending on the direction of rotation of the motor 44th

The hollow profile body 30 is further supported at its second end 34 via a bush 56 on the drive unit 40. On the drive housing 42, a rotary driver 58 is formed, which provides a bearing for the bushing 56 and thus for the hollow profile body 30.

In other words, 30 two pivot bearings are provided for the hollow profile body, on the one hand at the first end 32, the rolling bearing 18 which is coupled to the first support 14. In addition, the rotary driver 58 is provided in the drive unit 40, with which the hollow profile body 30 is rotatably mounted on the sleeve 56. Thus, the second end 34 is supported via the rotary driver 58 and the drive housing 42 on the second support 16.

In at least some example embodiments, the drive unit 40 further includes a rotational position sensor unit 60 configured to engage a rotational position sensor unit 60 To detect rotational position of the output 48 and a rotational position of the rotary driver 58 and monitor. This has the advantage that blocking cases, unequal loads and other unusual operating conditions can be detected. Namely, if the rotational position of the rotary driver 58 and the output 48 does not change synchronously and rotational position differences are detected, this indicates a potentially faulty operating state. Then can be switched off via a controller about the motor 44.

The motor 44, the gear 46, and the rotary bearing sensor unit 60 are in Fig. 1 for illustrative purposes only symbolically represented by dashed blocks in the drive housing 42.

The assembly of the shaft assembly 24 according to Fig. 1 is relatively expensive, since there is little space between the walls 12 to set the shaft assembly 24, possibly even in the fully wound state, the first support 14 and the second support 16 or to solve it. Thus, a very complex and possibly cumbersome assembly / disassembly may be required. Often boxes, such as shutter boxes, awning boxes and the like. Used as a housing for the shaft assembly 24. Assembly openings of the boxes are regularly even shorter in the longitudinal direction than the longitudinal extension of the shaft assembly 24 required in the operational state.

Hereinafter, with reference to FIGS Fig. 2 to 15 explained with reference to various embodiments measures to simplify assembly. According to at least some embodiments, a retrofit or conversion of the in Fig. 1 Locking device 10 shown done.

Fig. 2 illustrates a shaft assembly 74 for a closure device 10, compare here Fig. 1 , The shaft assembly 74 is receivable between a first support 76 and a second support 78. The shaft assembly 74 includes a hollow profile body 80 having a first end 82 facing the first support 76. Furthermore, the hollow profile body 80 has a second end 84, which faces the second support 78. The first end 82 and the second end 84 of the Hollow profile body 80 are facing away from each other. The hollow profile body 80 is rotatable about its longitudinal axis 86 to a tank 26 (see again Fig. 1 ) and unwind. In this way, a roller shutter, a roller shutter or the like can be realized.

The shaft assembly 74 further comprises a drive unit 90, which is designed as a so-called tubular motor unit. The drive unit 90 has a drive housing 92 in which a motor 94 is arranged. The engine 94 is coupled via a transmission 96 with an output 98. The output 98 cooperates with a driver 100 to form a rotary drive for the hollow profile body 80.

The drive unit 90 is non-rotatably coupled to the second support 78 via a connecting piece 104. The hollow profile body 80 is (indirectly) coupled to the first support 76 at its first end 82. The first support 76 defines a first pivot bearing for the hollow profile body 80. The hollow profile body 80 is received via its second end 84 (indirectly) to a rotational driver 108. The rotational driver 108 provides a second pivot bearing for the hollow profile body 80. Thus, the first end 82 is associated with a first pivot bearing and the second end 84, a second pivot bearing. Between the first end 82 and the second end 84 is a rotational drive via the driver 100th

Also in the drive unit 90, a rotary slide sensor 110 is provided which is adapted to detect a rotational position of the output 98 and a rotational position of the rotary driver 108 in order to determine any deviations. In this way, a safety shutdown can be realized. It is understood that exemplary designs of the shaft assembly 74 can be realized without such a rotational position detection.

Also in Fig. 2 For reasons of illustration, the motor 94, the gear 96 and the rotary-gear sensor unit 110 are indicated only by dashed blocks in the drive housing 92. It is understood that the drive unit 90 also has a Control unit, interfaces, supply lines, control lines and the like may include.

With regard to the elements described above, the in Fig. 2 illustrated shaft assembly of in Fig. 1 illustrated shaft assembly 24 designed very similar. This allows easy interchangeability and / or upgradeability. Unlike in Fig. 1 shown type of recording between the first support 14 and the second support 16 is the inclusion of the shaft assembly 74 between the first support 76 and the second support 78 in Fig. 2 using additional elements that greatly simplify assembly and disassembly.

The first end 82 of the hollow profile body 80 is associated with a first mounting unit 120. The second end 84 of the hollow profile body 80 is associated with a second mounting unit 122. The first mounting unit 120 includes a coupling sleeve 126, a thrust piece 132, and a biasing member 138. Accordingly, the elements may be referred to as the first coupling sleeve 126, the first pressure piece 132, and the first biasing member 138.

The second mounting 122 includes a coupling sleeve 126, a thrust piece 134, and a biasing member 140. Accordingly, the elements may be referred to as the second coupling sleeve 128, the second pressure piece 134, and the second biasing member 140.

The first mounting unit 120 extends between the first end 82 and the first support 76. The second mounting unit 122 extends between the second end 84 and the rotary driver 108, which is received on the second support 78 via the drive housing 92 and the connecting piece 104.

The connecting sleeve 126 protrudes at least in sections at the first end 82 into an interior of the hollow profile body 80. The connection sleeve 126 comprises a collar 144 at its end facing the first support 76. In the direction of the hollow profile body 80, a pipe section 150 connects. Between the Collar 144 and the pressure piece 132 extends the biasing member 138, which is designed approximately as a helical spring (compression spring).

Further, a snap connection between the connecting sleeve 126 and the pressure piece 132 is formed, which is formed for example by snap hooks 156, which are provided on the pipe section 150. Thus, a positive position assurance for the pressure piece 132 is given to the first connection sleeve 126. The pressure piece 132 is coupled to an end face of the hollow profile body 80. The biasing member 138 urges the pressure piece 132 and the collar 144 apart.

In the joined state according to Fig. 2 urges the biasing member 138, the pressure member 132 in the direction of the hollow profile body 80. However, the connection sleeve 126, if a suitable force is applied, at least partially deeper into the hollow profile body 80 are guided. In other words, the connection between the hollow profile body 80 and the connection sleeve 126 can be telescoped at least in sections. The biasing member 138 ensures that the connecting sleeve 126 is pushed out again when no corresponding force is applied from the outside.

Similarly, the connection sleeve 128 cooperates with the second end 84 of the hollow profile body 80. The connection sleeve 128 is at least partially inserted into the hollow profile body 80. The pressure piece 134 is supported on an end face of the hollow profile body 80, which faces the second support 78. The connection sleeve 128 has a collar 146, which faces the second support 78. Starting from the collar 146, a pipe section 152 extends in the direction of the hollow profile body 80 and at least partially into it.

Between the collar 146 and the pressure piece 134, the biasing member 140 extends. The biasing member 140 is in turn designed as a helical spring (compression spring), for example. The biasing member 140 urges the collar 146 away from the hollow profile body 80. However, a snap connection is also provided between the pressure piece 134 and the connecting sleeve 128, which, for example, by Snap hook 158 is formed, which are provided on the pipe section 152. Thus, a positive position assurance for the pressure piece 134 is given on the pipe section 152.

Also, the connecting sleeve 128 can be moved against the applied force by the biasing member 140 further into the hollow profile body 80 into it. Thus, the connection between the hollow profile body 80 and the connecting sleeve 128 is at least partially telescopic, provided that a corresponding force is applied. In assembled state according to Fig. 2 urges the biasing member 140 the collar 146 and thus the connecting sleeve 128 in the direction of the second support 78th

As already mentioned in connection with Fig. 1 also described is the drive unit 90 of in Fig. 2 shown embodiment on the connecting piece 104 rotatably received on the second support 78. The rotational driver 108 acts (indirectly) as a pivot bearing for the second end 84 of the hollow profile body 80.

The first end 82 of the hollow profile body 80 is (indirectly) received on the first support 76. For this purpose, the connecting sleeve 126 has a bearing seat 162 on its end face facing the first support 76. The bearing seat 162 is adjoined by an axle mount 164, which may also be referred to as an axle mount. Primarily for manufacturing reasons, recesses 166 are also provided. In the bearing seat 162, a bearing 168 is received, which is supported on a bolt 170 which is formed as an integral part of the first support 76.

According to an exemplary embodiment, the connection sleeve 126 is formed both for supporting a bearing, via the bearing seat 162, as well as for receiving an axis, via the axle socket 164. Accordingly, the connection sleeve 126, as in FIG Fig. 2 shown coupled with a support 76 with a fixed bolt 170. Alternatively, however, it is also possible, the connection sleeve with a support 14 according to the in Fig. 1 Coupling shown design having an integrated roller bearing 18. In other words, an axis 20 could compare again Fig. 1 , in the axle socket 164 (cf. Fig. 2 ) of the connection sleeve 126. Thus, a mounting would also be possible. One and the same part is suitable for two different types of fastening.

The basis of the in Fig. 2 illustrated embodiment of the shaft assembly 74 will be with reference to the Fig. 3 . 4 and 5 illustrated in more detail. It is emphasized once again that each of the two assembly units 120, 122 taken alone can be used. Already when only one of the two ends 82, 84 of the hollow profile body 80 is coupled to a corresponding mounting unit 120, 122, significant simplifications can be achieved during assembly and disassembly.

Fig. 3 13 illustrates an exploded fragmentary broken view of the shaft assembly 74, particularly relating to an area at the second end 84 of the hollow profile body 80 and the associated mounting unit 122. 4 and FIG. 5 illustrate side views in a pre-filled condition with the connection sleeve 128 in FIG Fig. 5 in comparison to the illustration in Fig. 4 is inserted deeper into the hollow profile body 80. The state in Fig. 5 can be generated by applying a correspondingly high force on the collar 146. In this state, about a coupling with the second support 78 (see Fig. 2 ) respectively.

Out Fig. 3 It can be seen that the drive unit 90 is inserted through the mounting unit 122 into the hollow profile body 80. As described above, it is advantageous if the rotational driver 108 is rotated simultaneously with the rotational movement of the hollow profile body 80. When using monitoring devices for anti-trap protection (blocking protection) or for end position detection, this is even necessary.

For this purpose, the pressure piece 134, which is partially inserted into the second end 84 of the hollow profile body 80, provided with a profile which is adapted to the profile of the hollow profile body 80. On the rotary driver 108, a rotary driving element 174 is formed, which is designed approximately as a web. At the connection sleeve 128 a corresponding rotational drive element 176 is provided (not shown in FIG Fig. 3 ), which is designed approximately as a groove. Thus, the connecting sleeve 128 can be coupled approximately in the region of the collar 146 with the rotational driver 108 for rotational driving, wherein the rotary driving elements 176, 174 engage with each other.

In the region of the pipe section 152, the connecting sleeve 128 is provided with a rotary driving element 178, which is designed approximately as a groove. At the pressure piece 134, a corresponding rotational drive element 180 is provided, which is designed as a web. The rotary driving elements 178, 180 engage each other when the pressure piece 134 is joined to the connecting sleeve 128, in particular to the tubular portion 152 of the connecting sleeve 128.

The longitudinal extent of the groove-shaped rotational drive element 178 is significantly greater than the longitudinal extension of the web-like rotational drive element 180. This takes into account the fact that an axial relative movement between the pressure piece 134 and the connecting sleeve 128 takes place when the biasing element 140 is compressed.

The rotational drive elements 174, 176, 178, 180 extend in a longitudinal direction which runs parallel to the longitudinal axis 86. In this way, the rotational drive or the defined rotational position between the elements involved is secured.

This in Fig. 3 embodiment shown has no snap hook 158 in the connection sleeve 128. However, this is not meant to be limiting. Nevertheless, it is conceivable that the connecting sleeve 128 and the pressure piece 134 to add together without snap connection with each other, since at least in the mounted state (see Fig. 2 ) the connecting sleeve 128 can not disengage so far that a loosening of the pressure piece 134 threatens.

At its end, which faces the second support 78, the drive unit 90 is provided at the connecting piece 104 with a receiving piece 184, which can engage approximately in a suitable recess in the second support 78.

In Fig. 4 FIG. 14 illustrates a compensating movement / telescopic movement of the connecting sleeve 128 relative to the hollow profile body 80, indicated by 184. FIG Fig. 5 is the connection sleeve 128 and thus also the drive unit 90 pushed by a measure in the hollow profile body 80, which allows, for example, a simple assembly or disassembly without tools.

It is understood that the assembly unit 120 (FIG. Fig. 2 ) for the first end 82 of the hollow profile body 80, which is associated with the first support 76, can be used to simplify the assembly and disassembly of the shaft assembly 74.

The mounting units 120, 122 are suitable both for the new installation as well as for the upgrade or conversion of existing shaft assemblies. The mounting units 120, 122 are characterized by a modular concept, which i.a. reduces the variety of parts and variant diversity.

With reference to the FIGS. 6, 7 and 8 FIG. 2 illustrates an exemplary embodiment of a connection sleeve 128 suitable for use with the second mounting unit 122.

The connection sleeve 128 is in Fig. 6 shown cut. FIGS. 7 and 8 show perspective views. Fig. 7 shows the hollow profile body 80 facing the end. Fig. 8 shows the second support 78 facing the end of the connecting sleeve 128th

As already stated above, the connecting sleeve 128 has a collar 146 and a tubular section 152. On the pipe section 152 snap hooks 158 are formed. At the end at which the collar 144 is formed, the connecting sleeve 128 has rotational engagement elements 176 in the form of grooves which are designed to cooperate with rotary driving elements 174 at the rotational driver 108 of the drive unit 90, cf. Fig. 3 ,

Further, 152 rotational drive elements in the form of grooves 178 are formed on the pipe section, which cooperate with corresponding rotational drive elements 180 of the pressure piece 134, in turn, compare Fig. 3 , The rotary driving elements 176 are provided on the inner periphery of the connecting sleeve 128. The rotary driving elements 178 are provided on the outer circumference of the connecting sleeve 128.

With reference to FIGS. 9, 10 and 11 an exemplary embodiment of a connecting sleeve 126 is illustrated, which is useful in the first mounting unit 120 which is coupled to the first end 82 of the hollow profile body 80, see Fig. 2 ,

Fig. 9 shows a longitudinal section of the connecting sleeve 126th Fig. 10 shows a perspective view of the hollow profile body 80 facing the end of the connecting sleeve 126th Fig. 11 shows a perspective view of the first support 76 facing the end of the connecting sleeve 126th

The connecting sleeve 126 has analogous to already in Fig. 2 shown design the collar 144 and the pipe section 150, wherein the pipe section 150 snap hook 156 are formed. At its end facing the support 76, the connection sleeve 126 is provided with an interface. The connecting sleeve 126 has on this end face a bearing seat 162, in which a bearing 168 (see also Fig. 2 ) can be pressed or pressed in. Furthermore, the connection sleeve 126 has an axle socket 164, which can also be referred to as an axle receptacle. The axle holder 164 is executed by way of example as a blind hole, at least provided with a depth stop.

The bearing seat 162 and the axle socket 164 are aligned concentrically with each other. The bearing seat 162 and the axle socket 164 are axially offset from one another. Starting from the bearing 76 facing the end of the collar 144, the bearing seat 162 is initially provided. This is followed by the axle socket 164. The bearing seat 162 has a larger nominal size than the axle socket 164. Depending on the desired application or according to the given boundary conditions can thus Connection sleeve 126 are coupled to a bearing 168 or with an axis 172. In Fig. 9 For reasons of illustration, the bearing 168 and the axis 172 are each indicated by dashed lines. Thus, the connection sleeve 126 is suitable for both in Fig. 1 and Fig. 2 shown fastening types at the first support 14, 76th

Further show FIGS. 9 and 11 in that various recesses 176 are provided. This ensures, for example during injection molding, that there are no excessive accumulations of material.

With regard to its radial outer contour, the connecting sleeve 126 of the connecting sleeve 128 is designed very similar. In the pipe section 150, rotary drive elements 188 are provided in the form of longitudinal grooves which correspond to the rotational drive elements 178 in the connection sleeve 128.

Embodiments are conceivable in which the connecting sleeves 126, 128 are designed identically in the region of their outer circumference or their lateral surface. This may allow, for example, the multiple use of mold halves in injection molding. This reduces the tooling. The snap hooks 156, 158 for the snap connection with the pressure pieces 132, 134 may accordingly be unified.

The design of the respective collar 144, 146 associated frontal end can be generated for example by various interchangeable inserts. Thus, the tooling can be minimized.

As already stated above, it is advantageous to make the pretensioning elements 138, 140 and the pressure pieces 132, 134 for the two assembly units 120, 122 identical or even identical. Such a unified design simplifies manufacturing, reduces logistics costs and generally increases the availability of the required components.

With reference to FIGS. 12, 13, 14 and 15 An exemplary embodiment of a pressure piece 134 is illustrated. It is understood that the pressure piece 132 can basically be designed identically. The pressure piece 134 can be used both in the assembly unit 120 and in the assembly unit 122.

Fig. 12 shows a side view of the pressure piece 134th Fig. 13 shows a frontal view of the pressure piece 134th Fig. 14 shows a perspective view of the end of the pressure piece 134, which is inserted in the joined state in the hollow profile body 80. Fig. 15 shows a perspective view of the end of the pressure piece 134, which faces the respective support 76, 78 in the joined state.

The pressure piece 134 includes a collar 194, which may also be referred to as a collar. At its end, which faces away from the collar 194, the pressure piece 134 has an insertion bevel 196. In this way, the insertion into the respective edge region of the hollow profile body 80 is simplified. Furthermore, the show Fig. 12 to 15 in summary that the axial extent of the pressure piece 134 is formed by a driving body 198 which extends from the collar 194 in the direction of the insertion bevel 196. The driving body 198 has a contour that is adapted to an inner profile of the hollow profile body 80.

The FIGS. 13, 14 and 15 can also be seen that the pressure piece 134 has rotational drive elements 180 in the form of webs. The entrainment elements 180 can be coupled to the entrainment elements 178 in the connection sleeve 128 and the entrainment elements 188 in the connection sleeve 126 in order to enable a rotational drive.

From the elements 126, 128, 132, 134, 138, 140, a mounting kit can be easily formed to mount the shaft assembly 74. Such a mounting kit is generally suitable as a repair solution or upgrade solution for existing shaft assemblies, compare the shaft assembly 24 in Fig. 1 ,

The mounting kit can comprise both mounting units 120, 122, ie provide a displaceable connecting sleeve 126, 128 both at the first end 82 and at the second end 84 of the hollow profile body 80. However, as already stated above, it is also possible to provide only one of the two mounting units 120, 122 in the mounting kit. This too can already contribute significantly to a simplification of assembly.

Claims (15)

Shaft assembly (74) for a closure or protection device (10), in particular for a roller shutter, a roller shutter or an awning, wherein the shaft assembly (74) has a hollow shaped hollow profile body (80) rotatable about its longitudinal axis (86) and for receiving a tank (26) or a track is formed, and a drive unit (90) which is at least partially disposed in the hollow profile body (80), wherein the shaft assembly (74) between a first support (76) and a second support (78) wherein the drive unit (90) has an output (98) for rotational drive of the hollow profile body (80), wherein the hollow profile body (80) between the first support (76) and the second support (78) and a first end ( 82) facing the first abutment (76) and a second end (84) facing the second abutment (78), wherein at least the first end (82) or the second end (84) of the hollow profile body a coupling sleeve (126, 128) which can be coupled to the hollow profile body (80) is provided, wherein a biasing element (138, 140) is arranged between the hollow profile body (80) and the connecting sleeve (126, 128), and wherein the connecting sleeve (126, 128) against a by the biasing member (138, 140) applied force against the hollow profile body (80) is axially displaceable, characterized in that on the hollow profile body (80) a pressure piece (132, 134) is receivable, on which the Biasing member (138, 140) is supported, wherein the pressure piece (132, 134) with a pipe section (150, 152) of the connecting sleeve (126, 128) is coupled, that the biasing member (138, 140) is designed as a spring, concentric with the pipe section (150, 152) of the connecting sleeve (126, 128) and outside the tube section (150, 152) is arranged, and that the tube section (150, 152) a guide for the pressure piece (132, 134) and the biasing member (138, 140 ). Shaft assembly (74) according to claim 1, characterized in that the biasing member (138, 140) does not penetrate into the interior of the hollow profile body (80) when the connecting sleeve (126, 128) is at least partially inserted into the interior of the hollow profile body (80) , Shaft assembly (74) according to claim 1 or 2, characterized in that the connecting sleeve (126, 128) has a collar (144, 146) on which the biasing element (138, 140) is supported at its end remote from the hollow profile body (80) , Shaft assembly (74) according to one of claims 1 to 3, characterized in that the pressure piece (132, 134) rotatably connected to the hollow profile body (80) is connectable, wherein the pressure piece (132, 134) further rotatably with the connecting sleeve (126, 128 ) can be coupled. Shaft assembly (74) according to any one of claims 1 to 4, characterized in that between the pressure piece and the connecting sleeve (126, 128) is provided a snap connection to the pressure piece (132, 134) axially displaceable and captive with the connecting sleeve (126, 128). Shaft assembly (74) according to one of claims 1 to 5, characterized in that on the pipe section (150, 152) and on the pressure piece (132, 134) corresponding rotary driving elements (178, 180, 188) are provided, in particular in the form of grooves and webs , Shaft assembly (74) according to one of claims 1 to 6, wherein the connecting sleeve (126, 128), the biasing member (138, 140) and the pressure piece (132, 134) not or only slightly over an outer circumference or an envelope of the hollow profile body (80 ) protrude. Shaft assembly (74) according to one of claims 1 to 7, characterized in that the hollow profile body (80) at its first end (82) via a first connecting sleeve (126) on the first support (76) is supported, wherein the connecting sleeve (126). a receptacle in the form of a bearing seat (162), a Achsfassung (164) or both as a bearing seat (162) and as Achsfassung (164) usable combined receptacle. Shaft assembly (74) according to any one of claims 1 to 8, characterized in that the hollow profile body (80) at its second end (84) via a second connecting sleeve (128) on the drive unit (90) and the drive unit (90) on second support (78) is supported. Shaft assembly (74) according to claim 9, characterized in that the drive unit (90) has a rotary driver (108) which is coupled to the movement entrainment with the hollow profile body (80). Shaft assembly (74) according to claim 10, characterized in that the drive unit (90) is coupled to a Drehlagensensoreinheit (110) which detects a rotational position of the rotary driver (108) and compares with a rotational position of the output (98). Shaft assembly (74) according to claim 10 or 11, characterized in that the rotary driver (108) has at least one rotational drive element (174) which can be coupled to the rotational drive with the connecting sleeve (128). Shaft assembly (74) according to claim 12, characterized in that the first end (82) on the first support (76) is supported and that the second end (84) on the drive unit (90) is supported, wherein the drive unit (90) supported on the second support (78), wherein the output (98) of the drive unit (90) via an adapter piece (100) for rotational driving with the hollow profile body (80) is coupled, and wherein the adapter piece (100) in the interior of the hollow profile body (80). is arranged. A mounting kit for flexibly mounting a shaft assembly (74), in particular a retractor for a closure or guard (10), comprising: - A first connecting sleeve (126) which is associated with a first support (76) and a first end (82) of a hollow profile body (80), and / or a second Connecting sleeve (128) which is associated with a drive unit (90) and a second end (84) of the hollow profile body (80), - At least one pressure piece (132, 134) which is insertable both between the first connecting sleeve (126) and the hollow profile body (80) and between the second connecting sleeve (128) and the hollow profile body (80), wherein the pressure piece (132, 134 ) a rotational drive between the hollow profile body (80) and the respective connecting sleeve (126, 128) allowed, and - At least one biasing member (138, 140), both between a collar (144, 146) of the first connecting sleeve (126) and the associated pressure piece (132) and between a collar (144, 146) of the second connecting sleeve (128) and the associated pressure piece (134) is receivable,
wherein the first connection sleeve (126) and the second connection sleeve (128) can be inserted into the hollow profile body (80) for assembly purposes against the force of the biasing element (138, 140),
wherein the biasing member (138, 140) is designed as a spring, concentric with the pipe section (150, 152) of the connecting sleeve (126, 128) and outside of the pipe section (150, 152) is arranged, and
wherein the pipe section (150, 152) provides a common guide for the pressure piece (132, 134) and the biasing element (138, 140). Closing or protection device (10), in particular roller shutter, roller shutter or awning, which has the following: a first support (76), - a second support (78), and - A shaft assembly (74) according to any one of claims 1 to 13, which is received between the first support (76) and the second support (78), wherein the shaft assembly (74) for the purpose of mounting against a biasing force is axially telescoping.

Images