EP3336298B1 - Roller capsule set for a winding shaft - Google Patents

Description

The invention relates to a roller capsule for connecting a winding shaft to a stationary bearing in a roller shutter box according to the preamble of claim 1.

Roller capsules are known in many copies. They are inserted into the free end of a winding shaft and hold a bearing body with which the winding shaft is rotatably supported on the stationary bearing in the roller shutter box.

The assembly and disassembly of a winding shaft in the roller shutter box is difficult not only because of the limited space; the threading and fixing of the bearing body at the respective stationary bearing is time-consuming, since the structural dimension of the winding shaft with the bearing bodies and the center distance of the stationary bearings overlap each other.

From the EP 1 746 244 A2 a roller capsule is known which comprises a formed on the base body bearing portion which protrudes to be arranged on the stationary bearing of the main body. The bearing portion is formed as axially movable in the body slide, wherein a force acting between the base body and the sliding bearing portion locking element is provided which blocks the axial displacement of the bearing portion in a blocking position and defines the bearing portion on the base body.

The locking element consists of a locking clip, which is aufzustecken for blocking the Axialverschieblichkeit the bearing portion on this. For this purpose, the clip overlaps the bearing portion and engages with detents in corresponding recesses in the outer periphery of the bearing portion.

The use of a locking clip is impractical because it can easily be lost as a separate element. In addition, the locking clip must be positioned by the user in the narrow roller shutter box to ensure a secure engagement in the locking grooves of the bearing section. If the clip is mounted incorrectly or only partially engaged, the bearing section is unsecured and may shift during operation of the winding shaft and release from the associated bearing.

The invention has the object of developing a generic roller capsule such that in a simple manner easy assembly and disassembly of a winding shaft is possible, wherein the winding shaft is securely held in the mounted position in the bearings of the roller shutter box.

The object is achieved in a generic roller body according to the features of claim 1.

According to the invention, the locking element is arranged in the bearing portion and thus captively connected thereto. The locking element is to move together with the bearing portion relative to the base body. In a blocking position, the locking element protrudes with at least one locking portion over the outer circumference of the bearing portion, so that an axial displacement of the bearing portion is blocked in the body. In a release position of the locking element of the locking portion is recessed in the bearing portion; The bearing portion is free for axial displacement, so that an axial insertion of the bearing portion in the body is possible.

To cancel the blocking of the Axialbeweglichkeit the bearing portion, thus only a depression of the locking element is necessary. The locking element itself remains in the bearing section and is moved axially with this. If the winding shaft is aligned with the stationary bearings, the bearing section is pulled out and positioned in the stationary bearing of the roller shutter box. In this case, the locking portion moves automatically back into its blocking position and blocks the bearing portion against axial displacement in the body.

Advantageously, the locking portion of the locking element against a spring force to sink radially into the bearing portion. When released, the locking portion is automatically returned under the action of the spring force in the locked position.

In an advantageous embodiment of the invention, the locking element has two locking portions which are diametrically opposed to the axis of rotation of the bearing portion. The use of two diametrically opposed locking sections increases the reliability of the lock.

In order to ensure an increased ease of operation for the user simple operation of the locking element with two locking portions, it is provided that the diametrically opposed locking portions of the locking element are coupled to each other motion. Advantageously, the locking portions are to move synchronously with each other.

By the movement coupling of the locking sections ensures that by applying a user force on only one of the locking portions due to a kinematics according to the invention also acts on the other locking portion coupled Versenkkraft. In order to adjust the locking element from the blocking position to the release position, the user thus only has to depress a locking portion of the locking element; Due to the movement coupling according to the invention also follows the other locking portion of the movement of the first locking portion in the release order. Thus, regardless of the rotational position of the winding shaft in a simple manner, the blocking of the Axialverschieblichkeit the bearing portion can be repealed.

In a particular embodiment of the invention, the locking element is composed of two locking plates. The locking plates are designed in particular as identical parts. The locking plates have expediently same thickness and form, superimposed, the locking element.

A locking plate consists of a central lever portion with a arranged on a flat side of the lever portion journals. The lever portion further includes an arm end for supporting the locking portion at an outer end of the lever.

In order to generate a restoring force for the locking portion, it is provided that the locking portion is supported by at least one spring arm on the central lever portion. The spring arm bridges the distance between the locking portion and the lever portion.

In a further development of the invention, the central lever portion of a locking plate on a curved guide pin on the guide pin. On the side facing away from the bearing pin flat side of the lever portion, a guide pin is formed, which cooperates with the curved guide groove of an opposite locking plate.

The locking plate preferably has a rectangular contour, wherein on the narrow sides of the rectangular contour, the diametrically opposed locking portions are arranged.

To form a locking element, the locking plates are joined together with their guide pins having flat sides lying on one another, wherein a guide pin of a first locking plate engages in the guide groove of a second locking plate. The journals form a common bearing pin, with which the locking element is held in a shaft of the axially displaceable bearing portion.

In particular, the central lever portions of the locking plates rotate upon application of a countersinking force on a locking portion in opposite directions of rotation about their journals. In this case, slide the lever portions of the superimposed locking plates to each other, wherein the flat sides engage with their guide pins in each case a guide groove of the overlying lever portion. As a result, the lever portions of superimposed locking plates are fixed relative to each other and can not move in their position to the axis of rotation.

A locking portion of the locking element is composed of locking halves of the superimposed locking plates. It is thereby achieved that a locking portion of a locking element is supported via a support arm with the central holding portion of a locking plate and another support arm with the central lever portion of the other locking plate.

Fig. 1

eine schematische Darstellung einer in einem Rollladenkasten montierten Wickelwelle mit einem Rollladenpanzer,

Fig. 2

eine Seitenansicht auf eine erfindungsgemäße Walzenkapsel in Sperrstellung,

Fig. 3

eine Seitenansicht der um 90° gedrehten Walzenkapsel nach Fig. 2,

Fig. 4

einen Schnitt längs der Linie IV-IV nach Fig. 3,

Fig. 5

einen Teilschnitt durch die Walzenkapsel nach Fig. 3,

Fig. 6

einen Schnitt längs der Linie VI-VI in Fig. 5,

Fig. 7

ein im axial verschiebbaren Lagerabschnitt angeordnetes Verriegelungselement in Seitenansicht,

Fig. 8

eine um 90° gedrehte Ansicht des Verriegelungselements nach Fig. 7,

Fig. 9

eine Stirnansicht des Verriegelungselementes nach Fig. 7,

Fig. 10

in Seitenansicht eine Verriegelungsplatte des Verriegelungselementes nach Fig. 7,

Fig. 11

eine um 90° gedrehte Seitenansicht der Verriegelungsplatte nach Fig. 10,

Fig. 12

eine Stirnansicht der Verriegelungsplatte nach Fig. 10,

Fig. 13

in perspektivischer Ansicht einen als Schieber ausgebildeten Lagerabschnitt der Walzenkapsel,

Fig. 14

einen Längsschnitt durch den Lagerabschnitt nach Fig. 13,

Fig. 15

eine Stirnansicht auf den Lagerabschnitt der Walzenkapsel nach Fig. 13,

Fig. 16

eine perspektivische Ansicht des Grundkörpers der Walzenkapsel,

Fig. 17

eine Stirnansicht der Walzenkapsel nach Fig. 16.

Further features of the invention will become apparent from the other claims, the description and the drawing, in which an embodiment of the invention described in detail below is shown. The features and advantages of the individual figures are not limited to the respective figure, but are transferable to all figures and can also be combined with one another. Show it:

Fig. 1

a schematic representation of a mounted in a roller shutter box winding shaft with a roller shutter,

Fig. 2

a side view of a roller capsule according to the invention in the locked position,

Fig. 3

a side view of rotated by 90 ° roll capsule after Fig. 2 .

Fig. 4

a section along the line IV-IV after Fig. 3 .

Fig. 5

a partial section through the roller capsule after Fig. 3 .

Fig. 6

a section along the line VI-VI in Fig. 5 .

Fig. 7

a arranged in the axially displaceable bearing portion locking element in side view,

Fig. 8

a rotated by 90 ° view of the locking element after Fig. 7 .

Fig. 9

an end view of the locking element according to Fig. 7 .

Fig. 10

in side view a locking plate of the locking element according to Fig. 7 .

Fig. 11

a rotated by 90 ° side view of the locking plate after Fig. 10 .

Fig. 12

an end view of the locking plate after Fig. 10 .

Fig. 13

in a perspective view designed as a slide bearing portion of the roller capsule,

Fig. 14

a longitudinal section through the bearing section after Fig. 13 .

Fig. 15

an end view of the bearing portion of the roll cap after Fig. 13 .

Fig. 16

a perspective view of the main body of the roller capsule,

Fig. 17

an end view of the roller capsule after Fig. 16 ,

In Fig. 1 schematically a shutter box 1 is shown, in which a wound on a winding shaft 3 curtain 2 is mounted. In the exemplary embodiment, the curtain is designed as a roller shutter 4; other hangings can be advantageous.

At the ends 5 and 7 of the winding shaft 3 is in the shutter box 1 each have a bearing 6, 8 are provided. In the ends 5, 7 of the preferably made of steel cylindrical winding shaft 3 roller capsules 9, 10 are inserted. The roller capsules 9, 10 each have a bearing portion 11, 12 projecting from the inserted into the end 5, 7 of the winding shaft 3 main body 13, 14 of the roller capsule. The bearing portion 11, 12 has at its free end to a bearing body 15, 16, not shown, over which the winding shaft 3 is rotatably supported on the stationary bearing 6, 8 in the shutter box 1.

If the bearing bodies 15, 16 are formed as axle pins, they must be threaded into corresponding bearing receptacles of the bearings 6, 8.

At least one of the roller capsules 9, 10 is according to the representations of Fig. 2 to 17 educated; In the illustrated embodiment, the roller capsule 10 is shown with its bearing portion 12 in its structural design in the following figures.

As Fig. 2 shows, the roller capsule 10 consists of a base body 14 which is to be inserted axially into the end 7 of the winding shaft 3. For the rotationally fixed connection of the base body 14 with the winding shaft 3, the base body 14 has at least one axial form-fitting groove 17, as in FIG Fig. 2 indicated and in FIGS. 16 and 17 is physically represented. The winding shaft 3 engages with a corresponding indentation in the circumferential direction in the form-fitting groove 17 in order to rotate in the direction of rotation 18 (FIG. Fig. 1 ) to produce about the axis of rotation 19 positive connection between the winding shaft 3 and the main body 14 of the roller capsule 10. In order to limit the axial insertion depth of the main body 14 into the end 7 of the winding shaft 3, a protruding peripheral edge 22 is formed on one of its end faces 21 ( Fig. 2 ).

The bearing portion 12 of the roller capsule 10 is formed as an axial slide 20. Trained as a slide 20 bearing portion 12 is rotatably held in the base body 14 but axially displaceable in the direction of the double arrow 23. In this case, the bearing portion 12 is guided in the base body 14 and held captive in particular.

In the bearing portion 12, a locking element 30 is arranged, wherein the locking element 30 is held stationary in the slider 20. The locking element 30 lies in a receiving shaft 70 (FIG. Fig. 3 ) of the bearing portion 12 and is to be moved together with the trained as a slide 20 bearing portion 12 in the direction of the double arrow 23.

In the in Fig. 2 shown blocking position protrudes the locking member 30 with locking portions 31 and 32 with a projection z on the outer periphery 24 of the bearing portion 12 from the receiving shaft 70 (FIG. Fig. 3 ) out. The projection z of the locking portions 31 and 32 is selected so that the locking portions 31, 32 protrude beyond the opening edge 25 of the opening 27 in the base body 14. The opening edge 25 has an inner diameter I, which is adapted to the maximum outer diameter A of the slider 20 such that an axial insertion of the slider 20 formed as a bearing portion 12 in the base body 14 is largely easily possible without play.

As the 3 and 4 show, the opening edge 25 forms a stop 26 for the locking portions 31 and 32 of the locking element 30. The slider 20 is rotatably guided in the opening 27. For this purpose, the base body 14, in particular Fig. 17 shows, engaging portions 28 which in corresponding guide grooves 29 (FIG. Fig. 13 ) of the slider 20 engage.

Between the main body 14 and the slider 20 acts - as Fig. 4 shows - a spring 33 which urges the slider 20 in the direction of arrow 34. Against pushing out of the bearing portion 12 from the base body 14 latching hooks 35 are provided on the base body, which cooperate with a latching nose of the slider 20.

In the in the Fig. 2 to 4 shown locking position of the trained as a slider 20 bearing portion 12 is prevented from being axially displaced into the base body 14. The bearing portion 12 is in its extended position to the Fig. 2 to 4 blocked.

In a release order after the FIGS. 5 and 6 the locking element 30 is displaced by depression in the bearing portion 12, so that the bearing portion 12 in the in FIGS. 5 and 6 shown inserted position by a distance u ( Fig. 1 . 4 ) can be moved axially. In this release position, the locking portions 31, 32 sunk into the bearing portion 12 and an axial insertion of the bearing portion 12 is released into the body 14.

As Fig. 5 shows, the locking element 30 is held with bearing pins 36, 46 in the receiving shaft 70 of the bearing portion 12.

The locking element 30 and its function is based on the Fig. 7 to 12 described in detail.

The locking element 30 according to Fig. 7 consists of two superimposed locking plates 37, 47. The locking plates 37 and 47 are advantageously formed as a common part. The locking plates 37 and 47 have a same thickness e (FIG. Fig. 8 ). In Fig. 10 is a locking plate 47 reproduced in isolation. The statements made on the locking plate 47 apply identically also to the locking plate 37. The locking plates 37 and 47 are identical parts.

As with the example of the locking plate in Fig. 10 shown, this has a substantially rectangular outer contour, wherein the locking portions 31 and 32 are arranged on the narrow sides of the rectangular outer contour.

The blocking portion 31 consists of two locking halves 31.1 and 31.2; Accordingly, the locking portion 32 consists of the locking halves 32.1 and 32.2 ( Fig. 7, 9th ).

Each locking plate 37, 47 has a central lever portion 38, 48. On only one flat side 41 of the lever portion 48, a bearing pin 46 is centrally provided. As Fig. 5 shows, the other locking plate 36 also has a bearing pin 36 on a flat side of the lever portion 38.

On the other flat side 42 of the lever portion 48, a guide pin 40 is provided. Further, a curved around the bearing pin 46 guide groove 44 is formed in the lever portion 48. The lever portion 48 mechanically forms a two-armed pivoting lever 43 which extends through a central axis of rotation 45 of the bearing pin 46. At the one end 43.1 of the pivot lever 43, a support arm 49.1 is connected, which carries the locking half 32.1 of the locking portion 32. The support arm 49.1 forms in the in Fig. 10 shown unloaded position a part of the long side edge of the rectangular outer contour of the locking plate 47th

The locking half 32.1 is held at only one end of the support arm 49.1; the support arm 49.1 and the locking half 32.1 form an L.

Accordingly, a support arm 49.2 is provided at the other end 43.2 of the pivot lever 43, which carries the other locking half 31.1 of the locking portion 31. Also, the support arm 49.2 forms together with the lock half 31.1 the shape of an L.

Between the locking halves 31.1 and 32.1 and the central lever portion 48 springs 50 are arranged, which are formed in the embodiment shown as leaf springs 51 and spring arms 56 form.

For the function of the locking plates 37, 47 according to the invention:
If the locking plate 47 according to Fig. 10 held with the bearing pin 46 in a pivot bearing, the lever portion 48 can pivot about the axis of rotation 45.

If the locking plate 47 is held pivotably about the axis of rotation 45 with the bearing pin 46, an actuating force F applied by the user in the direction of the arrow will cause the carrier arm 49.2 to be displaced in the direction of the arrow 52 and the pivot lever 43 to be pivoted about the axis of rotation 45 in the direction of the arrow 58. As a result, the other end 43.1 of the pivoting lever 43 is moved in the direction of the arrow 53, so that the support arm 49.1 is moved together with the locking half 32.1 in the direction of the arrows 54. The movement is advantageously supported by a guide 55, which experiences the locking plate 47 within the receiving shaft 70 in the slider 20, such as. In Fig. 6 is shown.

An actuating force F on the locking half 31.1 thus leads to a rotation of the central lever portion 48 in the direction of rotation 58, which - without the user would have to exert a force on the locking half 32.1 - the locking half 32.1 in the direction of arrows 54 is moved into the guide 55. In this case, the leaf springs 51 come to the central lever portion 48 to the system, so that the locking halves 31.1 and 32.1 are to be moved against a spring force. In this case, the lock half 31.1 is based on the Rotary axis 45 of the locking half 32.1 diametrically opposite. Due to the kinematics shown, the locking halves 31.1 and 32.1 are coupled to each other in a manner of movement, wherein the locking halves 31.1 and 32.1 move synchronously with each other. The application of a user force F on only one of the locking halves 31.1, 32.1 leads to a synchronous displacement of the other locking half 32.1, 31.1.

The locking plate 47 also has in one locking half 32.1 a mounting groove 60 and on the other locking half 31.1 mounting pin 61. As Fig. 12 shows, two mounting pins 61 are provided over the width of a locking half 31.1.

The locking element 30 after Fig. 7 is composed of the two locking plates 37, 47. In this case, the mounting pins 61 of the locking plate 37 engage in the mounting groove 60 of the locking plate 47; correspondingly engage mounting pin 61 of the locking plate 47 in a corresponding mounting groove 60 of the locking plate 37 a. By the engagement of the mounting pins 61 in the mounting grooves 60, the locking halves 31.1 and 31.2 are firmly connected to the locking portion 31 and the locking halves 32.1 and 32.2 of the locking plates 37 and 47 fixedly connected to a locking portion 32. By placing the locking plates 37 and 47 on one another, the support arms 39.1 and 49.2 or 49.1 and 39.2 form the longitudinal sides of the rectangular outer contour of the locking element 30.

The locking portion 31 of the locking element 30 is connected via the support arms 39.2 and 49.2 with the lever portions 38 and 48 of the locking plates 37 and 47; the locking portion 32 is connected via the lever arms 39.1 and 49.1 with the lever portions 38 and 48 of the locking plates 37 and 47. Each locking portion 31, 32 is supported via the arcuately arranged spring arms 56 against the central lever portions 38 and 48, wherein the spring arms 56 are symmetrical to a longitudinal central axis 57 of the locking element 30.

In Fig. 7 It is shown how the guide pin 40 of the lever portion 38 of the locking plate 37 engages in the guide groove 44 of the lever portion 48 of the locking plate 47. Accordingly, the guide pin 40 of the central lever portion 48 of the lock plate 47 engages in a corresponding guide groove of the lever portion 38 of the lock plate 37. Guide pin 40 and guide 44 are used in applying an operating force F on one of the locking portions 31 and 32 of the guided rotational movement of the lever portions 37, 48 relative to each other.

If z. B. as shown in FIG Fig. 7 on the locking portion 31 of the locking element 30, the actuating force applied F, it is introduced according to the arrows shown on the one hand on the support arm 49.2 in the central lever portion 48 of the locking plate 47 and on the other hand introduced via the support arm 39.2 in the central lever portion 38 of the locking plate 37. As a result, the central lever portion 48 is pivoted in the direction of rotation 58 about the axis of rotation 45, while the central lever portion 38 of the locking plate 37 is pivoted in the direction of rotation 68. The central lever portions 38, 48 of the locking plates 37, 47 thus rotate in opposite directions of rotation 58, 68. Due to the design of the locking plates 37 and 47 and the bearing of the central lever portion 38, 48 by bearing pins 36, 46 in the slide 20 kinematic is achieved the unlocking of the diametrically opposed locking portions 31 and 32 by applying a user force F on only one locking portion 31 or 32 to a simultaneous unlocking of both locking portions 31 and 32 leads. The locking portions 31 and 32 are sunk against the spring force of the spring arms 56 radially in the bearing portion 12 ( Fig. 5, 6 ) and thus transferred to a release position. This is ensured by the movement-coupled connection of the locking portions 31 and 32 with each other. The locking portions 31 and 32 move synchronously with each other. If the one locking portion 31 sunk, this also leads to a sinking of the other locking portion 32. The locking portions 31 and 32 can be sunk radially synchronously in the slider 20 designed as bearing portion 12, whereby the user is ensured easy operation.

Claims (15)

1. Roller capsule for connecting a winding shaft (3) to a stationary bearing (8), consisting of a base body (14) for insertion into one end (7) of the winding shaft (3), which base body(4) is held non-rotatably in the winding shaft (3), and of a bearing section (12), which is formed on the base body (14) and projects from the base body (14) for location at the stationary bearing (8), wherein the bearing section (12) is designed as a slide (20) which is axially movable into the base body (14), and wherein, between the base body (14) and the axially displaceable bearing section (12), there is provided a locking element (30), which releases the bearing section (12) for axial displacement in a release position and immovably locates the bearing section (12) on the base body (14) in a locking position,
   characterised in that the locking element (30) is located in the bearing section (12), in that the locking element (30) together with the bearing section (12) is displaceable relative to the base body (14), wherein the locking element (30) projects in the locking position beyond the outer circumference (24) of the bearing section (12) with a locking section (31, 32) and blocks an axial displacement of the bearing section (12) into the base body (14) and the locking section (31, 32) is recessed into the bearing section (12) in the release position, thereby enabling an axial insertion of the bearing section (12) into the base body (14).
2. Roller capsule according to claim 1,
   characterised in that the locking section (31, 32) can be recessed into the bearing section (12) against a spring force.
3. Roller capsule according to claim 1,
   characterised in that the locking element (30) has two locking sections (31, 32), which are situated diametrically opposite each other relative to an axis of rotation (19) of the bearing section (12).
4. Roller capsule according to claim 4,
   characterised in that the locking sections (31, 32) of the locking element (30) are motion-coupled to each other, moving in particular radially synchronously to each other.
5. Roller capsule according to claim 4,
   characterised in that a coupled recessing force acts, by applying a radial user force (F) on only one of the locking sections (31, 32), on the other locking section (32,31).
6. Roller capsule according to claim 1,
   characterised in that the locking element (30) is composed of two locking plates (37, 47).
7. Roller capsule according to claim 6,
   characterised in that the locking plates (37, 47) are identical parts.
8. Roller capsule according to claim 6,
   characterised in that a locking plate (37, 47) consists of a central lever section (38, 48) with a bearing journal (36, 46) on a flat side (41) and the lever section (38, 48) has a supporting arm (39.1, 39.2, 49.1, 49.2) at an outer lever end (43.1, 43.2) for holding the locking section (31, 32).
9. Roller capsule according to claim 8,
   characterised in that the locking section (31, 32) is supported on the central lever section (38, 48) by way of at least one spring arm (56).
10. Roller capsule according to claim 8,
    characterised in that the central lever section (38, 48) has a guide groove (44) curved around the bearing journal (36, 46).
11. Roller capsule according to claim 8,
    characterised in that a guide pin (40) is formed on the flat side (42) of the lever section (38, 48) remote from the bearing journal (36, 46).
12. Roller capsule according to claim 8,
    characterised in that the locking plate (37, 47) has a rectangular contour and the diametrically opposite locking sections (31, 32) are located on its narrow sides.
13. Roller capsule according to claim 8,
    characterised in that the locking plates (37, 47) are joined with their flat sides (42) having a guide pin (40) lying on top of each other, wherein a guide pin (40) of a first locking plate (37, 47) engages with a guide groove (44) of a second locking plate (47, 37) and the bearing journals (36, 46) form a common bearing bolt which holds the locking element (30) in the axially displaceable bearing section (12).
14. Roller capsule according to claim 8,
    characterised in that the central lever sections (38, 48) of the locking plates (37, 47) rotate about the bearing journals (36, 46) in opposite directions of rotation (58, 68).
15. Roller capsule according to claim 1,
    characterised in that a locking section (31, 32) of the locking element (30) is composed of locking halves (31.1, 31.2, 32.1, 32.2) of locking plates (37, 47) lying on top of each other.

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