Background and Summary of the Invention
The present invention relates to a sash window blind frame and sash constructions for sash windows, sliding doors, and the like made of profile members preferably of a synthetic resin. Although the following description refers to sash windows, it is to be understood that the present invention also contemplates sliding doors, etc., constructions having a blind frame and sash. Preferred embodiments of the present invention are particularly related to sash windows of the type wherein profile members having respective identical cross sections are utilized for all frame sides of the blind frame and sash. Preferred contemplated sash window constructions of the present invention also include provisions for metallic profile members inserted in the synthetic resin profile member and/or slide in corners (angles).
A number of profile members for the production of sash windows, sliding doors, or the like have been contemplated which start with respectively identical profile members for all sides of a blind frame or sash. The blind frames are formed in each case in pairs with fixed projections to guide the sash and form a running surface or track for the rollers. The cross sections of such profiles are fashioned so that they withstand high and maximum stresses. This is true not only for the construction of the blind frame, but also the sash, the cross section of which is selected to be so large that it can, for example, also accommodate double glazings (windows).
The present invention contemplates providing a sash window and/or sliding door construction made up of profile members, which window is distinguished over previously contemplated profile structures not only by a low weight of the profile members, thus being suitable especially for smaller units, but also by a simple manufacture and economical assembly.
The present invention further contemplates producing the connection of blind frame and sash along three sides by means of a resiliently constructed mounting profile snapped into an undercut groove at the blind frame profile member with a projecting, approximately V-shaped central section of this mounting profile being guided between projections of the sash profile member.
In contrast to the heretofore customary rigid guides of the blind frame for the sash, the present invention provides a resilient, elastic guide so that the sash profile member can be easily hung and/or detached into and from the blind frame, which is possible by the snap connection due to the resiliency of the inserted mounting profile. The present invention also contemplates arrangements with the mounting profile glued (cemented) to the blind frame. Due to the resiliency of the mounting profile, the sash profile member can accordingly be dimensioned in its size and inserted with only a minor clearance with respect to the blind frame profile member. The resilient, elastic mounting profile is preferably extruded, for example, of a thermoplastic synthetic resin, e.g., PVC.
In a further development of this invention, the blind frame is formed with two continuous undercut grooves arranged side-by-side, preferably in a dovetail shape for accommodating a T-shaped track (guide) rail. This T-shaped track rail is preferably of metal such as aluminum. The blind frame profile member is furthermore formed, in an extension of one side of the profile, with a blind (facing) fillet projecting beyond the grooves.
The present invention further contemplates providing a particularly simple way of mounting the glazing in the sash profile member, wherein a groove of the sash profile member, formed beyond the horizontally extending glazing flange serving as the contact surface for a glazing (glass is it utilized to receive a fastening means for the glazing. As the fastening means, a novel, acute-angled profile element is provided, with legs of unequal lengths and made of an elastic material, e.g., chloroprene. With its short leg, this acute-angled profile element engages into the groove of the sash profile member and, with its long leg, the element rests on the glazing. In preferred embodiments this long leg is equipped with additional sealing lips. In order to affix the fastening means to the sash profile, the fastening (acute-angled) profile element is profiled with lugs and/or recesses which engage corresponding and/or projections at the sash profile member. By a simple pressing of this acute-angled fastening profile element along the continuous groove at the sash, so that it engages the groove, the glazing is mounted with one manipulation, any unevennesses or the like being compensated for by the elastic profile. In preferred embodiments, a further groove on the other side of the glazing flange of the sash profile member is provided which serves to receive a sealing profile for the glazing on the side contacting the sash profile member.
The present invention further contemplates a novel construction of a grip molding (handle rail) to handle a sash on a window or sliding door. According to the invention, an angular profile element having a closed leg and an open leg and forming a grip molding is clamped to the projections of the sash profile member. The open leg of the grip molding is formed by two sides of unequal lengths, wherein the inner, shorter side engages, hook-like, the groove formed on the inside of the projection of the sash, and the outer projecting side contacts the sash profile member on the outside and, with a mounting extension, the end of the projection of the sash profile member. This construction of the grip molding makes it possible to effect a resilient suspension at the sash. A reinforcing iron in flat or angular construction can be inserted in the hollow grip molding in accordance with preferred embodiments where the additional reinforcement is desired or required. The grip molding is preferably also constructed so that it can receive gaskets. For receiving gaskets, the projecting side (longer side) of the grip molding is formed with a groove on the side facing away from the sash profile member. The grip molding is preferably fashioned as an extruded profile element, for example of PVC.
A sash window constructed with the above-mentioned novel features is distinguished by the cooperation of the individual components which are advantageously constructed with functional efficiency and which result, in their entirety, in a readily manipulatable (operable) sash window economical in its manufacture and work-saving in its installation. This sash window can be equipped with simple glazing and also with commercial fittings. The window can also be utilized in case of higher mechanical stresses by the insertion of reinforcing profile elements of metal into the hollow blind frames or sashes.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a single embodiment in accordance with the present invention.
Description of the Drawings
FIG. 1, is a side view which shows a closed horizontal sash window constructed in accordance with the present invention;
FIG. 2 is a vertical sectional view along line A--A of FIG. 1;
FIG. 3 is an enlarged cross-sectional view through a mounting profile member of FIG. 2; and
FIG. 4 is a horizontal sectional view along line B--B of FIG. 1.
The invention is explained with reference to the horizontal sash window according to FIG. 1; however, the invention is likewise applicable to vertical sash windows as well. The blind frame 1 and the sash 2 are composed of profile members of, preferably, a thermoplastic synthetic resin produced by the extrusion molding method. The structure of these profile members can be seen in detail from the sectional views shown in FIGS. 2 and 4.
The vertical sectional view of FIG. 2 shows the guidance of the sash in the blind frame. The blind frame is constructed from the blind frame profile members 1, produced as a multiple-chamber, extruded hollow profile of a synthetic resin. The configuration of the blind frame profile member 1 is such that anchoring projections are provided on the side facing the masonry in order to anchor the blind frame therein. Commonly assigned copending U.S. patent application Ser. No. 285,113, filed Aug. 31, 1972 discloses details of blind frame anchoring projections that could be used in conjunction with the present invention. To the extent necessary for a full understanding of the present invention the disclosure of said copending application is hereby incorporated by reference herein. The side of the blind frame profile member 1 opposite the anchoring projections is formed with two undercut grooves 11 which are arranged side-by-side and have a dovetail configuration.
T-shaped guide rails 7 of aluminum are inserted in these grooves 11 to form the track for the sash, corresponding profiled rollers 25 attached to the sash profile member 2, travel on these guide rails. The blind frame profile member 1 is furthermore formed, along one profile side in an extension thereof, as a blind fillet 12 projecting beyond the grooves 11.
The sash is guided along the remaining three sides of the sash window by means of an elastic mounting profile 6 snapped into the grooves 11 of the blind frame profile member 1. The resiliently constructed and elastic mounting profile 6 has an approximately V-shape in the central zone and is provided with horizontal tongues 63 to engage in the groove 11. These tongues 63 are adapted in their end zones to the dovetail-shaped configuration of the grooves 11. One end of each tongue 63 continues in the manner of a U-shaped arc in a further tongue 62, which tongue 62 has a thickened section 64 at its end and which also serves as an auxiliary guide means for the sash profile member 2. To insert into the groove 11, the mounting profile 6 is compressed (angle of the V is decreased) in its central V-shaped zone and is simply inserted by a snap connection. The V-shaped central zone 61 serves as a guide means for the sash profile member 2 which, with an open groove formed by the projections 22, wherein brush (whisker) seals 24 are inserted in additional lateral grooves 23, contacts this zone 61, seals the latter, and is guided therealong. Due to the elasticity of the mounting profile 6, an especially easy installation and detachment of the sash are likewise made possible, wherein only minor oblique positions of the sash to be removed and/or hung are required.
In other preferred embodiments, the mounting profile 6 is also entirely or partially cemented into the grooves 11 of the blind frame profile member 1.
The mounting of the glazing 30 in the sash is illustrated only in the lower portion of FIG. 2, whereas this mounting is omitted in the upper portion, so that the configuration of the sash profile member 2 in this region can be clearly seen. The horizontally extending glazing flange 31 is formed at the sash profile member 2, so that the open mounting groove 32 is formed between the main chamber of the profile member 2 and the glazing flange 31. The glazing 30 is seated on the glazing flange 31 optionally with the interposition of the wedge 35.
The glazing 30 is fastened by means of the acute-angled elastic fastening profile element 5 which engages the groove 32 of the sash profile member 2 with its short leg and rests against the glazing 30 with its long leg. By the acute-angled form of the profile element 5, a compressive pressure is exerted on the glazing 30 to accomplish final mounting and holding of the glazing.
In order to avoid with certainty a disengagement of the fastening profile element 5 from the groove 32, a lug 52 and a recess 53 are provided at the profile element, which engage a corresponding notch 33 in the glazing flange 31 and a mounting web 34 at the sash profile member 2. The glazing 30 is in contact with the other side of sash profile member 2 under interposition of a gasket (sealing means) 29 which is placed on the projection 27 of the sash profile member 2. The profile member 2 is fashioned in this zone of projection 27 so that an abutment strip 26 is formed along one side with the glazing flange 31 branching off from strip 26 such that two grooves 32 and 28 are formed between the thickened end (projection) 27 of the abutment strip and the main chamber 21. The outer zone of the sash profile member 2 is formed with the two mutually parallel projections 22 forming the groove to receive the guide elements 7, 24. Main chamber 21 of the sash profile member 2 accommodates insertion of rollers, fittings, or the like, numbered 25. Only a portion of roller 25 is illustrated, it being understood that the same will straddle and engage on guide element 7.
In FIG. 3, the elastic, resilient fastening profile element 5 for the glazing is once again illustrated, in a cross section, so that the details can readily be perceived. The short leg is formed so that it can be mounted in the groove 32 of the sash profile member and comprises the projecting lug 52 and the recess 53 in the outer zone of the acute-angled corner for anchoring of the profile member. This angular profile member 5 is fashioned with the angle 51, which is smaller than 90.degree., whereby a permanent compressive pressure is exerted on the glazing when the profile member is inserted. With its long leg, the fastening profile member 5 rests on the glazing; additional sealing lips 54 can furthermore be provided.
In the horizontal sectional view according to FIG. 4, showing the sash window, the configuration of the sash profile member 2 with a grip molding 4 is illustrated. This grip molding 4 has such a shape that it can be attached to the end or side of the sash profile member equipped with the projections 22. The basic configuration of the grip molding is an angular profile, one leg of which faces toward the outside wherein the open leg ends have differing lengths. The short, open leg 41 has a hook shape, so that it engages into the groove 23 of the projection 22, which normally would receive a sealing means but for molding 4. In order to affix this short leg to the projection 22, the mounting cam (lug) 48 is provided on the opposite side. Moreover, the short leg 41 is formed toward the inside with an extension web 49 which makes it possible to mount an angle iron 42 or also a flat iron within the grip molding for reinforcing purposes. The long open leg 43, encompassing the second projection 22 of the sash profile member 2 on the outside, has a fixing lug 47 which projects toward the inside. On the side facing away from the sash profile member 2, a groove 44 is provided to receive a sealing means 45. The end 46 of this projecting leg 43 is beveled in a wedge shape. The grip molding 4 serves, on the one hand, for handling the sash and, on the other hand, makes it possible to receive reinforcing irons and seals for the respective sashes.
The sash window of the present invention is distinguished by the use of frame profile members having a relatively simple structure, making it possible to realize a low weight for the profile members and thus an economical manufacture. By the utilization of elastic, resilient connecting parts, a low-noise, tightly sealed, and readily operable window is created.
Although the combination of novel features disclosed herein provide particularly useful preferred embodiments, it is also contemplated by the present invention to utilize individual novel features separate from one another in practicing the invention.
While I have shown and described several embodiments in accordance with the present invention, it is understood that the same is not limited thereto but also contemplates numerous changes and modifications as would be known to those skilled in the art given the present disclosure of the invention, and I therefore do not wish to be limited to the details shown and described herein only schematically, but intend to cover all such changes and modifications.