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  Connection device for a tilting windowUSPTO Application #: 20070227431Title: Connection device for a tilting window Abstract: A device for connecting two portions of a cremone-bolt mechanism related to parts having a different diameter of the leaf of a tilting window of the porthole type, comprising: a flat guide applied astride the two parts with a different diameter of the frame of the leaf, a longitudinal lamina slidable within the flat guide astride the two parts, a connection for the longitudinal lamina to the two mechanism portions of the two parts of the leaf. The flat guide is formed by at least three separate portions, of which a first portion to be fixed to a first one of the two parts, a second portion to be fixed to the second of the two parts, and a third inclined portion for connecting together the first and second portions. (end of abstract)
Agent: Modiano & Associati - Milan, om Inventor: Antonio Alban USPTO Applicaton #: 20070227431 - Class: 114178 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070227431. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001]The present invention relates to a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type. [0002]The present invention also relates to a cremone-bolt mechanism for tilting windows of the porthole type. BACKGROUND OF THE INVENTION [0003]As is known, tilting windows are constituted by a casing and by a leaf, which is pivoted to the casing by means of a pair of hinges having a horizontal axis which are arranged at the horizontal centerline of the leaf. [0004]The leaf is closed and opened by means of a handle which is connected to the closure elements by means of a so-called cremone-bolt mechanism. [0005]In particular, the leaves of tilting windows of the porthole type have a frame which is constituted by an upper part, which is contoured like a circular arc which spans 180.degree., and a lower part, which is also shaped like a circular arc which spans 180.degree. and is connected to the upper part. [0006]The upper part has a larger diameter than the lower part and therefore, at the horizontal centerline of the leaf there is a step which constitutes the diameter variation. [0007]Currently, cremone-bolt mechanisms used on the leaves of tilting windows of the porthole type are constituted by two separate circular arc-like portions, which are mutually connected and are arranged in circular arc-like slots formed on the side of the frame of the leaf. [0008]Each portion of the mechanism is constituted by a base which is elongated and shaped substantially like a circular arc and is fixed with respect to the corresponding part of the leaf; such elongated base acts as a guide for a longitudinally elongated body which is arranged between the frame of the leaf and the base. [0009]The corresponding ends of the longitudinally elongated bodies of the two portions of the mechanism are connected by a pawl, so that the movement of the lower longitudinal body (operated by means of the handle) is matched by a movement of the upper longitudinal body, with a movement of the opening and closure elements. [0010]In particular, the slot in which the mechanism portion related to the lower part of the leaf is arranged lies beyond the region of diameter variation between the upper and lower part of the leaf and in practice enters the upper part of the leaf. [0011]This is needed to "skip" the region related to the diameter variation in which the hinge for connecting the leaf to the frame is provided. [0012]The part of the slot related to the lower mechanism portion which enters the upper leaf portion follows the circular arc-like curvature of the slot formed in the lower part. [0013]This type of connection between the lower portion and the upper portion of the mechanism is mechanically simple but has problems in terms of construction. [0014]It is in fact not easy to provide, with current methods for manufacturing leaf frames, the part of the slot for accommodating the lower portion of the mechanism which enters the first part of the frame of the leaf; in particular, it is complicated to provide the curvature of said slot portion, which as mentioned follows with the same radius of curvature the slot formed in the lower part of the leaf. SUMMARY OF THE INVENTION [0015]The aim of the present invention is to provide a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type, which solves the drawback noted in the production of known types of tilting window of the porthole type. [0016]Within this aim, an object of the present invention is to provide a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type which allows to avoid complicated machining processes on the leaf for its application. [0017]Another object of the present invention is to provide a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type which is constructively simple and can be adapted easily to leaves having different dimensions. [0018]Another object of the present invention is to provide a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type which can be manufactured with known systems and technologies. [0019]This aim and these and other objects, which will become better apparent hereinafter, are achieved by a device for connecting two portions of a cremone-bolt mechanism related to parts having different diameters of the leaf of a tilting window of the porthole type, characterized in that it comprises: [0020]a flat guide to be applied astride the two parts having a different diameter of the frame of the leaf, [0021]a longitudinal lamina, which can slide within said guide and also runs substantially astride the two parts having a different diameter of the frame of the leaf, [0022]two elements which are fixed to said lamina and are adapted to connect said lamina to the two mechanism portions of said two parts having a different diameter of the frame of the leaf, [0023]said flat guide being formed by three separate portions, respectively a first portion to be fixed to a first one of said parts having a different diameter of the frame of the leaf, a second portion to be fixed to the second of said parts having a different diameter of the frame of the leaf, and a third inclined portion for connecting said first and second portions. BRIEF DESCRIPTION OF THE DRAWINGS [0024]Further characteristics and advantages of the invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment thereof, illustrated by way of non-limiting example in the accompanying drawings, wherein: [0025]FIG. 1 is a schematic front view of the leaf of a tilting window of the porthole type, with a device according to the invention applied thereto; Continue reading... Full patent description for Connection device for a tilting window Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Connection device for a tilting window patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. 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