Orienting system for the inclination of a sun blind

Abstract: This invention is particularly related to the technological field of external solar protections. Existing extendible sun blinds are provided with an adjusting system allowing an inclination of max. 45°. This operation is to be performed separately for each of the two arms. The novelty consists in making the square bar (1) acting as a support for the arms (2) (with no adjusting system) no longer a static element, but a support capable of rotating around its own axis, thus allowing an inclination of up to 90°. This result is obtained through a rotating device which directly operates the square bar (1) allowing the blind to be orientated. This innovation helps the final user of this product, who can obtain the best shielding depending on his/her own requirements, the seasonal period, or else according to the amount of solar irradiation.

Description: This invention regards an extendible sun blind having two opposite folding arms, said folding arms being supported by a couple of side wall supports, one of said wall supports having means for extending-unrolling and retracting-rerolling of the sun blind. The building technique of the existing sun blinds with a so-called arm-structure can be described as follows: Two or more brackets fixed to the wall or to the ceiling support a square section, the length of which is the same as the breadth of the front of the blind. On this section, two or more double-jointed arms are fixed at specific distances with suitable connections for the square section. On the joint which is linked to the square bar the arms are provided with a system allowing the adjusting of the inclination, usually on a range of max. 45°. However, this operation is to be performed only by the installer according to the Customer's needs, e.g. LU-A-70 837 (RAU), and DE-A-29 08 899 (FA JOSEF PRADLER). In fact, it is not possible for the average user to make these adjustments on his own, and this is made even more complicated in that the operation must be carried out separately for each arm, in order to align the blind. Scope of this invention is to realize a reliable extendible and inclinable sun blind. CH-A-542 337 (FREGO OTTENBACH AG) discloses an extendible and inclinable sun blind. Orientation is realized by a central mechanism able to rotate a single tubular rotating bar. This mechanism is not associated to a mechanism enabling the extension or retraction of the sun blind and furthermore this solution provides the foldable arms directly mounted on the single tubular rotating bar. This feature does not make a reliable support structure of the foldable arms, e.g. it is known that when there is a strong wind the awning can be lifted up and dropped down, thus breaking the support of the foldable arms. The problem is solved by the combination of features of claim 1. An example of the invention is disclosed in the enclosed drawings where: Fig.1 discloses in perspective the central third support. Fig.2 discloses one support with respective revolving bush and said connecting bar. Fig.3 discloses two side views of the same sun blind in two operative positions, rotated-down and rotated-up respectively. Fig. 4 shows the sun blind in perspective view and in rotated-up position. Making reference to the figures and as claimed: The new concept consists in making the square bar (1) to which the arms (2) are fixed not only on a static support, but also with an element capable of rotating around its own axis. Said static wall supports are in the form of special brackets (3) four in total : 2 side supports, 2 central supports provided with self-lubricating revolving bushes (4). The square bar (1) goes through two central brackets and through a square-holed hub connected to a couple of levers (5). At the end of these levers a bolt is inserted which has a transverse thread (6) and a threaded stem (7) axially inserted in-between the said central brackets (3), the bottom of which is provided with an eye allowing one to adjust the rotation in a range of 90°. In this way one can perform the adjustment of the system by moving both arms (2) at the same time - and therefore moving the whole blind, by means of an ordinary hooked rod. This new device allows an easy adjustment of the blind inclination by simplifying the articulated connection of the arms (2) to the square bar (1), thus, eliminating the present inclination-adjusting device which operates on each folding arm (2). As stated above, Tthe scope of this invention is to allow the final user to easily adjust the blind inclination according to his/her own requirements and to the time or the season, without being obliged to call for the installer. The field to which this invention relates is the field of solar protections.

Claims: Extendible sun blind having two opposite folding arms (2) being supported by a couple of side supports (3) to be fixed to a wall, wherein a connecting bar (1) rotatably mounted is inserted between said side supports (3), a central third support (3) to be fixed to a wall is mounted on said bar (1) and between said side supports (3), said arms (2) are fixed to said bar (1), said central third support (3) has a mechanism able to rotate said bar (1) and said mechanism consists of a couple the top of of levers (5) and a threaded-holed pin (6) screwed to the top of an operating screw (7), wherein the one end of said levers (5) is connected to said bar (1) and the other end is connected to said pin (6) and the bottom of said operating screw (7) is provided with a hooking system, i.e. a simple eye for a hooked rod or another type of hooking for electric or manual operations, characterized in that said connecting bar (1) has a square section, said central support consists in two supports between which said levers (5) are inserted and said side supports (3) support a separate parallel rolling axis with a mechanism to rotate said axis to independently wind and unwind said blind. Extendible sun blind as claimed in Claim 1, characterized in that said connecting bar (1), on one of said side supports (3), is inserted in a hub with rotating lever to rotatably wind and unwind said sun blind, and, on the central and opposite supports, is inserted in revolving bushes (4), and in that the said lever (5) of said central support ends with a threaded-holed pin (6) screwed to an operating screw (7) in order to allow rotation of said square connecting bar (1) on a range of 90°. Extendible sun blind as claimed in Claim 1, characterized in that said bushes (4) are self-lubricating bushes.

Inventors: CADORIN SERGIO, CADORIN, SERGIO
Applicants: ELIOS SNC DI CADORIN SERGIO &, ELIOS SNC DI CADORIN SERGIO & C.
Application year: 1995
Main classification: E04F10
IPC codes: E04F10