WO2010004467A2

WO2010004467A2 - Device for holding a winch or a motor of a roller shutter in a winding case, winch and case with such a device

Info

Publication number: WO2010004467A2
Application number: PCT/IB2009/052708
Authority: WO
Inventors: Damien Gouthiere
Original assignee: Zurfluh Feller
Priority date: 2008-06-26
Filing date: 2009-06-24
Publication date: 2010-01-14
Also published as: EP2304155A2; EP2304155B1; FR2933121A1; WO2010004467A3; FR2933121B1

Abstract

Device for holding a winch (6) or a motor of a roller shutter in a winding case closed at each end by an end plate, the winch being positioned inside the case near a first end plate comprising, in its central part, a support stud able to be fitted into a housing (12) in the winch casing (13); the casing (13) comprises an elastic means (E) of clamping the stud able to keep the winch (6) immobilized in terms of rotation relative to the end plate during carriage or after installation, particularly in order to absorb the torque resisting operation, while at the same time allowing an angular movement of the winch relative to the end plate for position adjustment purposes.

Description

DEVICE FOR MAINTAINING A WINCH OR A ROLLING SHUTTER MOTOR IN A WINDOW BOX, WINCH AND BOX WITH SUCH DEVICE.

The invention relates to a device for holding a drive means, winch or motor, of roulette wheel in a winding box closed at each end by a cheek, the winch or the engine being disposed inside the trunk in the vicinity of a first cheek, and a hoisting tube of an apron extending between the winch or engine and the other cheek, the first cheek having in its central part a clean support pin to be engaged in a housing of the winch housing or engine facing.

For projects in which the rolling stock has been prepared in the workshop and is delivered in a closed box containing the winch, the winch must be immobilized in rotation in order to prevent the winding tube to turn freely in the boot in the absence of a drive rod connected to a crank handle of the winch and, on the other hand, to cash the resistant maneuvering torque during the raising and lowering of the apron when the moving car is in place. Otherwise the stop effort in rotation of the winch is only taken up by the drive rod which generates excessive forces in the bearings of a winch input pinion, thus risking to damage the life of this winch.

For cases of assembly in renovation, that is to say in cases where a reservation for the shutter was not originally planned, and where we still want to install a roller shutter, the latter is reported with its hoard chest to hide the deck above the opening, including the window. This chest is positioned outside the opening, either under the lintel or in front of the îinteau. In this case, the drive rod and the operating member of the winch are installed after the manufacture of the trunk at the factory and after the installation of the trunk in the opening.

It appears that it is necessary to keep the winch locked in rotation in his trunk, especially during transport or waiting for the laying of the drive rod, once the trunk installed in the opening, to avoid an untimely descent of the apron. But the constraint of this type of installation is that we do not know in advance exactly the final orientation of the trunk outlet because, at the time of installation, it is necessary to drill in the dormant joinery surrounding the opening from the window or door, in order to bring back the control of the maneuvering organ inside the dwelling. In depending on the configuration of the joinery (thickness of the frame, for example), and the replacement tolerance of its drilling, the operator will slightly differently position the operating angle of maneuver of the drive rod relative to the initial position realized in workshop. It is therefore necessary that the winch (while being locked to immobilize the apron hoisted in the trunk during transport and during the installation phase of the shutter) can turn slightly relative to the cheek of the trunk to align with the definitive angulation of the attack rod.

When the roller shutter is driven by an electric motor, instead of a winch, it is advisable to ensure easy mounting of the engine on the adjacent cheek, with sufficient maintenance of the motor housing to prevent its rotation. It may also be necessary to slightly turn the motor head on the cheek, to change the orientation of the limit switches to give them easier access during the final adjustment phase on site. Indeed if the shutter is placed in inner or outer winding, we can change the orientation at the time of installation, in order to have a more convenient access.

The invention aims, above all, to provide a winch holding device that allows to ensure a simple and fast way setting up and fixing the winch or engine. In the case of a winch, the holding device must allow to adjust the angular position of the winch relative to the cheek next to the trunk for the alignment of the bore in the joinery and the drive rod. It is further desirable that the proposed solution is simple, economical, and easy to implement.

According to the invention, a device for holding a winch or roller shutter motor in a winding box closed at each end by a cheek, winch or motor being disposed inside the trunk at adjacent a first cheek, and a winding tube of an apron extending between the winch or engine and the other cheek, the first cheek having in its central portion a support pin clean to be engaged in a housing of the winch housing or engine facing, is characterized in that the housing of the winch or the motor comprises a resilient means for clamping the nipple clean to maintain the winch or engine immobilized in rotation relative to the cheek during transport or after implementation, in particular to cash the resisting torque of maneuver, while allowing an angular displacement of the winch or the engine relative to the cheek for a position adjustment.

In the case of a winch with manual drive with winch drive rod, the angular position of the winch in the trunk, before placement above the opening, is set back from the theoretical position so as to have to rotate it, relatively to the cheek, in the direction of the rise of the apron to put on the rod attack.

The elastic means is advantageously formed by a spiral spring disposed against the face of the casing facing the cheek, this spring comprising a central loop to surround the stud, a spring end of the spring being stopped on the face of the housing, the diameter the central loop of the spring in the free state being smaller than the diameter of the stud.

Advantageously, an attachment member is provided on the face of the housing to maintain the other end of the spiral spring in a spaced apart position for which the diameter of the central loop of the spring is greater than the diameter of the stud, the strand being able to then be released for tightening the nipple. This other end of the spring strand, preferably extends radially beyond the contour of the winch housing or the motor, and the attachment member is formed by a lug; the strand of the spring can be released from this pin for tightening the stud.

Preferably, the spring strand is wound in the direction of rotation of the winding tube at the descent of the deck. Depending on whether the spring is installed on the right cheek or on the left cheek of the trunk, its direction of winding will be different. The invention also relates to a drive means, winch or motor, for roller shutter characterized in that the housing of the winch or motor is provided to receive a resilient means of clamping the nipple of a roller shutter box cheek , adapted to keep the winch or the motor locked in rotation during transport or after installation, while allowing angular displacement of the winch or engine relative to the cheek for a position adjustment.

This elastic means is advantageously formed by a spiral spring disposed against the face of the casing of the winch or motor, coming opposite the cheek of the trunk, this spring comprising a central loop to surround the stud, a spring strand being fixed on the face of the housing, the diameter of the central loop of the spring in the free state being smaller than the diameter of the pin.

Advantageously, the face of the casing comprises a lug to maintain the other end of the spring in a spaced apart position for which the diameter of the central loop of the spring is greater than the diameter of the stud, this other extending spring strand radially beyond the contour of the housing to be hooked to the lug, which can be released for tightening the nipple.

The invention also relates to a winch for a roller shutter to be maintained in a trunk by a device as defined above, and characterized in that the winch housing comprises an elastic means for clamping the nipple of a rolling trunk cheek, adapted to keep the winch locked in rotation during transport or after implementation, while allowing an angular displacement of the winch relative to the cheek for a position adjustment.

The elastic means is advantageously formed by a spiral spring disposed against the face of the winch housing coming opposite the cheek of the trunk, a strand of the spring being fixed on the face of the housing, the diameter of the central loop of the spring to the free state being smaller than the diameter of the nipple.

The face of the winch housing may comprise a lug to maintain the other end of the spring in a spaced apart position for which the diameter of the spring is greater than the diameter of the pin, this other spring strand extending radially beyond the contour of the housing to be hooked to the lug, which can be released for clamping the nipple.

The invention also relates to a rolling shutter box comprising a drive means, winch or motor, for rolling shutter maintained by a holding device as defined above.

Advantageously, when the roller shutter box comprises a winch with manual drive with winch drive rod, the angular position of the winch in the trunk, before placement above the opening, is set back from the theoretical position in order to have it turn, relatively to the cheek, in the direction of the rise of the apron to put on the rod of attack. The invention consists, apart from the arrangements described above, of a certain number of other arrangements which will be more explicitly discussed hereinafter with reference to an embodiment described with reference to the appended drawings, but which is in no way limiting. In these drawings: 1 is a diagrammatic perspective exploded partial view of a rolling shutter box with winch and manual control member of the winch.

Fig.2 is a schematic section of a trunk in place, in a vertical plane orthogonal to the axis of hoarding.

Fig. 3 is a rear view of the winch with the elastic clamping means according to the invention.

Fig. 4 is an elevational view of the spiral spring seion three positions.

Fig. 5 is a perspective view of the winch set up in the cheek of the trunk. Fig. 6 shows, similarly to FIG. 5, the treui! and the cheek while the spring strand has been released.

Fig. 7 is a perspective view, from another angle, of the cheek and the winch, with the drive rod being engaged, and FIG. 8 is an elevational view, slightly in perspective, of the winch in place with the drive rod engaged in the winch.

Referring to Figs. 1 and 2, there can be seen a trunk 1 (FIG 2) of shutter winding V, schematically shown. The trunk 1 comprises a prismatic cover 2, formed by an upper wall, a front wall and a bottom wall, which surrounds the apron 3 of the shutter when it is wound on the tube 4.

The chest 1 is closed at each end by a cheek 5a, 5b whose contour is conjugated with the polygonal cross section of the lid 2.

A winch 6 is disposed inside the trunk 1 in the vicinity of a first cheek 5a. The winding tube 4 of the apron extends between the winch 6 and the other cheek 5b. The winding tube 4 has a generally cylindrical shape with ribs and longitudinal grooves which engage with ribs and conjugate grooves of end sleeves 7a, 7b which can engage the tube 4. The sleeve 7a comprises, at its end facing the winch 6, a housing in which the output shaft 8 of the winch 6 engages to rotate the tube 4. The other sleeve 7b has, at its end facing the cheek 5b, a axial extension 9, of smaller outer diameter, having an axial cylindrical housing in which is engaged a support pin provided on the inner face of the cheek 5b. Plates 10 having openings for passage of the tube 4 are provided to close the cheeks inwards.

5a, 5b and ensure the guidance of the deck.

The first cheek 5a comprises, in its central part, a support pin 11 (Figure 1) adapted to be engaged in a housing 12 (Figure 3) of the housing 13 of the winch 6, facing the cheek 5a. Fig. 2 illustrates the case of a rolling shutter assembly in renovation, according to which the winding box 1 is reported, making it possible to hide the wrapped deck 3, above a window W. According to FIG. 2, the chest 1 is placed in front of the lintel facade. In some cases, the trunk can be positioned under the lintel. The control of the winch is ensured by means of a drive rod 14, with polygonal section, which must be engaged in a housing 15 (FIG.7) traversing the winch diametrically. A rod 14a (Fig.2), provided with a crank 14b, is connected to the rod 14 by a joint 14c with single or double articulation. To fully engage the rod 14 in the housing 15, it The axis of the housing 15 and that of the rod 14 must be aligned, with the same angular orientation relative to the cheek 5a. The maneuvering rod 14 to pass through the frame 16 (Fig.2) of the joinery, the installer will drill 17 in this joinery to allow to bring the order inside the house. Depending on the configuration of the joinery, including the thickness of the frame 16 and the tolerance of the location, the bore may be positioned so that it defines a maneuvering angle of output of the rod 14 slightly different from the initial position of the housing 15 made in the workshop. It will therefore be necessary for the winch 6, while immobilized sufficiently in rotation to prevent the rolled apron from going down on its own, to be able to turn slightly in the cheek 5a by an angle α (FIG. alignment of the housing 15 and the drive rod 14.

To allow this flexibility, according to the invention, the housing of the winch comprises a resilient means E for clamping the pin 11, adapted to maintain the winch 6 immobilized in rotation relative to the cheek 5a during transport, or after installation, in particular to cash the resisting torque of maneuver. The tightening of the pin 11, however, allows an angular displacement of the winch 6 relative to the cheek 5a, when sufficient torque is exerted.

The clamping means E is advantageously constituted by a spiral spring 18 fixed on the face of the housing 13 facing the cheek 5a. The spring 18 comprises a central loop 18a, which surrounds the stud 11. The fixing of the spring 18 can be ensured by means of a groove provided in the face of the housing, surrounding the housing 12 and a radial groove 19 in which is housed an end strand 20 of the spring 18. The radial extent of the strand 20 is less than the outer radius of the casing 13. The maintenance of the strand 20 in the groove 19 is provided by the head of a screw 21 screwed into the wall of the casing 6. The other radial end strand 22 of the spring 18 has a length greater than that of the strand 20 so as to exceed the circular outer contour of the housing 13 of the winch A free state of the spring 18, its substantially circular central loop 18a has a diameter D1 (FIG 4) less than the diameter of the stud 11. Commonly, the diameter of the stud 11 is 12 mm. In Fig. 4, the position of the strand 22, when the spring is in the free state, is designated 22a.

To facilitate the engagement on the stud 11, the strand 22 is held on the casing 13 by a lug 23 (FIG 3) provided on the periphery of the casing, in a position 22b corresponding to a larger opening of the central loop. 18a of the spring and an inner diameter of this loop greater than the diameter of the stud 11. When the winch has been placed on the stud 11, and oriented in its provisional position, it is sufficient to unhook the free end 22 of the lug 23 so that the spring 18, by its central loop 18a, come tighten the nipple 11 to lock the winch rotationally. The clamping position taken by the free run 22 corresponds to the position 22c in FIG. 4 between positions 22a and 22b. The tightening exerted on the pin 11 remains slippery, which makes it possible to turn the winch 6 later on the pin 11 to engage the drive rod 14 in its final position.

The sliding torque of the spring 18 clamped on the pin 11 is not identical in both directions of rotation, and depends on the winding direction of the spring wire. The torque to be exerted to turn the winch relative to the pin 11 will be higher when the winch 6 rotates in the direction corresponding to the winding of the spring 18 on the stud; this torque will be lower when the winch 6 tends to unwind the spring 18 relative to the stud 11.

To ensure good support of the resistant torque exerted by the spring 18, opposing the weight of the deck 3, it is desirable that the spring 18 has a tendency to wind on the stud 11 under the effect of the weight of the deck .

Depending on the maneuvering side defined to install the winch 6, it will be necessary to choose either a wound spring clockwise or counterclockwise. Advantageously, two spring models are made, one with a spiral wound in a clockwise direction and the other wound in a counterclockwise direction. At the site, the installer when engaging the drive rod 14 in the housing 15 of the winch through the bore 17 that he made in the woodwork, will turn the winch slightly 6 by the engagement force of the rod 14 in the housing 15 of the winch, because all will seek to self-align.

It is desirable that the installer tends to rotate the winch 6 on the pin 11 in the direction that tends to unroll the spring 18 on the pin so that the handling is easier. This direction of rotation, regardless of the installation side of the winch, always corresponds to the direction of rotation of the tube 4 ensuring the rise of the apron 3. Thus the manufacturer of the trunk will always guide the winch 6 at an angle for which the l 15a (FIG 2) of the housing 15 is recessed at an angle α of the theoretical position so that the installer, by engaging the drive rod 14 in the housing 15, rotates the winch 6 in the direction of the rise of the apron. The installation of the winch against the cheek 5a immediately resulted from the foregoing explanations.

The winch is delivered with the strand 22 hooked on the pin 23 as shown in FIG. 3 and 5. It is then possible to easily engage the pin 11 in the housing 15 crankcase. When this installation has been carried out and the orientation of the winch 6 is suitable, the strand 22 of the lug 23 is released as illustrated in FIG. 6, which causes the pin 11 to be clamped by the central loop 18a of the spring 18. The drive rod 14 is then engaged in the housing 15, by aligning, if necessary, by rotation of the housing 13 around the pin 11 by overcoming the sliding torque exerted by the spring 18.

Maintaining the winch provided by the spring 18 on the stud 11 avoids a fastening screw, or equivalent means, the housing 13 on the cheek 5a.

The drawings and the description relate to a driving means of the winding tube 4 formed by a winch. However, the invention also applies to a drive means formed by an electric motor whose housing, or stator, comprises a housing for receiving the pin 11 and a spring fixed to the face of the housing clean to tighten the pin 11 cheek 5a. Such an electric motor assembly is particularly simple and fast and can allow a better choice of orientation of the limit switches of the limit switches at the time of installation on site.

Although the description was made about a rolling shutter box installed in renovation, this example is not limiting. The invention can very well apply to new boxes, provided that a central pin 11 is provided on the cheek adjacent to the winch housing.

Claims

1. Device for holding a drive means, winch or motor, rolling shutter in a winding box closed at each end by a cheek, the winch or the motor being disposed inside the trunk in the vicinity of a first cheek, and a winding tube of an apron extending between the winch or the engine and the other cheek, the first cheek having in its central part a clean support pin to be engaged in a housing of the housing treuii or engine facing, characterized in that the housing (13) of the winch (6) or the motor comprises an elastic clamping means (E) of the stud (11) adapted to maintain the winch (6), or the motor, immobilized in rotation relative to the cheek (5a) during transport or after installation, in particular to cash the resisting torque of maneuver, while allowing an angular displacement of the winch or engine relative to the cheek for a setting of position.

2. Device according to claim 1, characterized in that the elastic means (E) is formed by a spiral spring (18) disposed against the face of the housing (13) facing the cheek (5a), the spring having a loop central (18a) to surround the pin (11), a spring end (20) of the spring being stopped on the face of the housing, the diameter (D1) of the central loop (18a) of the spring in the free state being less than the diameter of the stud (11).

3. Device according to claim 2, characterized in that a hooking member (23) is provided on the face of the housing (13) to maintain the other end strand (22) of the spiral spring in a remote position for which the diameter of the central loop (18a) of the spring is greater than the diameter of the stud, the strand (22) can then be released for tightening the stud.

4. Device according to claim 3, characterized in that the other end strand (22) of the spring (18) extends radially beyond the contour of the housing

(13) winch or motor, the attachment member being formed by a lug (23), the strand (22) of the spring can be released from this lug for tightening the stud,

5. Device according to one of claims 2 to 4, characterized in that the strand (20) of the spring (18) is wound in the direction of rotation of the winding tube (4) at the descent of the deck.

6. Winch for roller shutter adapted to be held in a trunk by a device according to any one of claims 1 to 5, characterized in that the housing (13) of the winch comprises an elastic means (E) for clamping the stud ( 11) a roller shutter box cheek, adapted to keep the winch locked in rotation during transportation or after installation, while allowing an angular displacement of the winch relative to the cheek for a position adjustment.

7. Winch according to claim 6, characterized in that the elastic means (E) is formed by a spiral spring (18) disposed against the face of the casing (13) of the winch coming opposite the cheek of the trunk, this spring comprising a central loop (18a) for surrounding the pin (11), a strand (20) of the spring being fixed on the face of the housing, the diameter of the central loop (18a) of the spring in the free state being less than the diameter of the nipple.

8. Winch according to claim 7, characterized in that the face of the housing (13) comprises a lug (23) for holding the other end portion (22) of the spring in a spaced position for which the diameter of the loop spring center (18a) is greater than the diameter of the pin (11), this other spring strand (22) extending radially beyond the housing contour to be hooked to the pin (23), of which it may be cleared for tightening the nipple.

9. Shutter box comprising a drive means, winch or motor, held by a holding device according to any one of claims 1 to 5.

10. Shutter box according to claim 9, comprising a winch with manual drive with winch drive rod, characterized in that the angular position of the winch (6) in the trunk, before installation above an opening, is set back from the theoretical position so as to have it rotate relative to the cheek, in the direction of the rise of the apron to thread the drive rod (14).