Suspension subassembly of a roller shutter screen, and roller shutter installation comprising such a subassembly
Patent Information
- Application Number
- FR2022009345
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-12-15
- Filing Date
- 2022-09-16
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2042-09-16
Smart Images
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Abstract
Claims
Claims
1. Suspension subassembly (300) of a roller shutter apron (36), the suspension subassembly (300) comprising a tube (100) for winding the apron (36) and at least one connecting lock (200) between the tube (100) and the apron (36), in which: • the tube (100) has a cylindrical shape, which extends along a longitudinal axis (A 100) and which has a cross section defining a contour (101) of the tube, • each lock (200) comprises: • a front link (202), which is configured to be attached to the tube (100), in a mounted configuration of the lock (200) on the tube (100), • a second link, which is articulated in rotation with the front link (202) around a front hinge (212), the front hinge having a front axis (A212) parallel to the longitudinal axis (A100) when the lock (200) is in the configuration mounted on the tube (100), • the second link has: • an inner surface (208B), which faces the tube (100) when the suspension subassembly (300) is in a wound configuration, in which the lock is in a mounted configuration and is wound around the tube (100), and • an external surface (208A), opposite the internal surface (208B), in which: • the tube (100) comprises a first groove (104), which extends along the tube (100) parallel to the longitudinal axis (A 100) and which is set back from the contour (101), • when the suspension subassembly (300) is in the wound configuration, the internal surface (208B) of the second link defines an internal envelope (212B) of the lock, • the front hinge (212) includes a reinforcement (216), which protrudes from the inner casing (212B) in the direction of the longitudinal axis (A100) when the suspension subassembly (300) is in the wound configuration, • the first groove (104) is arranged to receive a portion of the reinforcement (216) of the front hinge (212) when the lock (200) is in the mounted configuration and is wound around the tube (100), so that the inner surface (208B) of the second link bears against the tube (100), characterized in that: • a depth (P 104) of each first groove (104) is dimensioned so that the front hinge (212) does not touch the bottom of the corresponding first groove (104) when the suspension subassembly (300) is in the wound configuration.
2. Suspension subassembly (300) according to the preceding claim, in which: • in the wound configuration of the lock (200), the internal surface (208B) of the second link is in surface support against the tube (100), preferably in continuous support.
3. Suspension subassembly (300) according to any one of the preceding claims, wherein: • in the wound configuration of the lock (200), the external surface (208A) of the second link defines an external envelope (212A) of the lock, • the external envelope (212A) is a cylinder of circular section centered on the longitudinal axis (A100).
4. A suspension subassembly (300) according to any one of claims 1 to 3, wherein: the second link is a rear link (204), which is configured to be attached to an upper blade (40) of the apron (36), in an attached configuration of the lock (200) to the apron (36).
5. A suspension subassembly (300) according to any one of claims 1 to 3, wherein: • the second link is a first intermediate link (203) of the lock (200), while the lock (200) also comprises a rear link (204), • the intermediate link is interposed between the front link (202) and the rear link (204), while the rear link is configured to be attached to an upper blade (40) of the apron (36), in an attached configuration of the lock (200) to the apron (36), • the intermediate link (203) is articulated in rotation with the rear link (204) around a rear hinge (210), having a rear axis (A210) parallel to the front axis (A212), • the rear link (204) has • an internal surface (208B) which, when the lock (200) is in the mounted configuration and wrapped around the tube (100), is oriented towards the tube (100) and is carried by the internal envelope (212B), and • an external surface (208A), opposite the internal surface (208B), • the rear hinge (210) comprises a reinforcement (216), which protrudes from the internal casing (212B) in the direction of the longitudinal axis (A100) when the suspension subassembly (300) is in the rolled configuration, • the tube (300) comprises a second groove (108), which extends along the tube parallel to the longitudinal axis (A 100) and which is set back from the contour (102), • the second groove (108) is arranged to receive a portion of the reinforcement (216) of the rear hinge (210) when the lock (200) is in the mounted configuration and is wrapped around the tube (100), so that the internal surface (208B) of the rear link (204) bears against the tube (100).
6. Suspension subassembly (300) according to the preceding claim, in which: • the intermediate link (203) has, between its internal surface (208B) and its external surface (208A), a thickness (E208) less than 12 mm, preferably less than 10 mm, preferably less than 8 mm.
7. Suspension subassembly (300) according to any one of claims 5 or 6, in which: • the intermediate link (203) has, between its internal surface (208B) and its external surface (208A), a thickness (E208) greater than 3 mm, preferably greater than 5 mm, more preferably greater than 6 mm.
8. Suspension subassembly (300) according to any one of claims 5 to 7, in which: • the body (208) of the intermediate link (203) has, between its internal surface (208B) and its external surface (208A), a thickness (E208), • the reinforcement (216) of the rear hinge (210) has a thickness (E216), • the thickness (E216) of the reinforcement is greater than the thickness (E208) of the body.
9. Suspension subassembly (300) according to any one of claims 5 to 8, in which: • the lock (200) comprises, in addition to the first intermediate link (203), at least one other intermediate link, called additional link, • the additional link(s) are interposed between the intermediate link (203) and the rear link (204), two consecutive intermediate links being articulated together in rotation around a specific intermediate hinge, having an intermediate axis parallel to the front axis (A212), • each additional link has: • an internal surface (208B) which, when the lock (200) is in the mounted configuration and wound around the tube (100), is oriented towards the tube (100) and is carried by the internal casing (212B), and • an external surface (208A), opposite the internal surface (208B), • each intermediate hinge comprises a reinforcement (216), which protrudes from the internal casing (212B) in the direction of the longitudinal axis (A100) when the suspension subassembly (300) is in the wound configuration, • for each intermediate hinge, the tube comprises a second respective groove (108), called an additional groove, • each additional groove is arranged so as to receive a part of the reinforcement (216) of the corresponding intermediate hinge when the lock (200) is in the mounted configuration and is wound around the tube (100),so that the internal surface (208B) of the intermediate links associated with this intermediate hinge bear against the tube (100).,
10. Suspension subassembly (300) according to any one of the preceding claims, in which: • in the wound configuration of the suspension subassembly, the reinforcement (216) of each front (212) and / or rear (210) and / or intermediate hinge is not in contact with a bottom (109) of the first groove (104) and / or second groove (108) arranged opposite.
11. Roller shutter installation (10), comprising: • a box (20), which is fixed to a wall (12) above an opening (14) made in this wall, • a suspension subassembly (300) according to any one of the preceding claims, and • a roller shutter apron (36), wherein the winding tube (100) is received in the trunk (20) and is pivotally mounted relative to the trunk, while the apron (36) is connected to the winding tube (100) via the lock (200).