US3461608A

US3461608A - Tilt window assembly with balance guides

Info

Publication number: US3461608A
Application number: US684232A
Authority: US
Inventors: Waldo O Johnson
Original assignee: Georgia Pacific LLC
Current assignee: Georgia Pacific LLC
Priority date: 1967-11-20
Filing date: 1967-11-20
Publication date: 1969-08-19
Anticipated expiration: 1986-08-19
Also published as: DE1809712A1; GB1198200A

Description

7 Aug- 1 1969 w. o. JOHN-SON 3,

TILT wmnow ASSEMBLY WITH BALANCE GUIDES Filed Nov. 20, 1967 Q wQQQQ 2 Sheets-Sheet l INVE'NTOR. WALDO O.JOHNSON /A ATTORNEYS.

g- 1969 w. o. JOHNSON TILT WlNUOW ASSEMBLY WITH BALANCE (EU [DES 2 Shcets-3heet 2 Filed Nov. 20, 1967 N m may WWW ATTORNEYS.

United States Patent 3,461,608 TILT WINDOW ASSEMBLY WITH BALANCE GUIDES Waldo 0. Johnson, Wooster, Ohio, assignor, by mesne assignments, to Georgia-Pacific Corporation, Portland, Oreg., a corporation of Georgia Filed Nov. 20, 1967, Ser. No. 684,232 Int. Cl. Ed 15/22 US. Cl. 49-161 8 Claims ABSTRACT OF THE DISCLOSiURE The novel window assembly of the invention includes a pair of vertically extending jamb liners and an upper and a lower sash slidably operably engaging the jamb liners. A balance guide of substantially the length of each of the sashes engages each vertical rail of the sashes and extends laterally outwardly therefrom to engage the jamb liners, and slide spring means are operably carried by the balance guides and engage the jamb liners for resiliently supporting the sashes. The assembly normally includes pivotal means that secure the balance guides to the sashes adjacent the lower ends thereof and the jamb liners are laterally inwardly offset in the portions thereof engaging the upper sash to facilitate inward tilting of the window sashes.

This invention relates to window sash assemblies and particularly to novel and improved means for slidably mounting window sashes in window assemblies, especially where window sashes are to tilt inwardly of a building structure.

Heretofore there have been many different types of sash positioning means provided, and in various types of prior window assemblies, including tilt windows, it has been conventional practice to provide a jamb liner that is resiliently urged laterally inwardly in the window assembly for engaging the window sashes to operatively position the same. In these prior constructions, insofar as I am aware, the side jamb liner has been adapted to receive only windows of equal sizes therein and it is diflicult to tilt windows in assemblies of this type inwardly for cleaning action, repair, or for other purposes.

The general object of the present invention is to provide a novel and improved window assembly wherein a balance guide engages each vertical rail of slidably positioned Window sashes and novel slide spring means are carried by the balance guides and engage the jamb liners in which this sash is positioned to urge such balance guides laterally inwardly for resilient engagement with a positioned window sash.

Other objects of the invention are to use leaf springs as the slide spring means in slidably positioned windows; to have leaf springs position window sashes and extend generally vertically of the sashes; to provide novel balance guides secured to a window sash for movement therewith to aid in positioning them for slide and/or tilt action; to secure balance guides to window sashes by pivotal means at the lower edges of the window sashes to facilitate tilting the sashes inwardly; to offset a jamb liner in a window assembly laterally inwardly in the portions thereof that engage the upper sash of a pair of double hung window sashes; to provide a laterally inwardly extending parting strip portion in a unitary window jamb liner; to utilize balance guides attached to window sashes for engaging a parting strip means in a jamb liner for window sash positioning; to position leaf spring means in window sash assemblies by special plastic block means carried by the window sashes or means operatively positioned thereon; to provide special plastic closure means in double hung window assemblies utilizing balance guides therein carried by the sashes to close or sea] the vertical space provided between the balance guide and associated jamb liner; and to provide a special closure or seal means in a double hung window assembly of the tilt type and wherein the upper window sash is laterally narrower than the lower window sash and which seal means are operatively positioned at the parting line zone of the jamb liner formed by the top rail of the lower sash and the bottom rail of the upper sash to seal the space therebetween.

The foregoing and other objects and advantages of the invention will be made more apparent as the specification proceeds.

For a better understanding of the invention, reference should be had to the accompanying drawings, wherein:

FIG. 1 is an enlarged, partially broken away, horizontal section of a window assembly embodying the principles of the invention;

FIG. .2 is a vertical section, with portions broken away and removed, of the window assembly of FIG. 1;

FIG. 3 is an end elevation detail of the window sash positioning means shown in FIG. 1;

FIG. 4 is a front elevation of the upper end of the window sash positioning, or balance guide means shown in FIG. 3;

FIG. 5 is a fragmentary vertical section taken on line 55 of FIG. 4; and

FIG. 6 is a fragmentary elevation detail of a jamb liner means embodying a feature of the present invention.

When referring to corresponding members shown in the drawings and referred to in the specification, corresponding numerals are used to facilitate comparison therebetween.

Attention now is particularly directed to the details of the structure shown in the accompanying drawings, and a window assembly is indicated as a whole by the numeral 10. This window assembly 10 includes a lower sash 11 and an upper sash 12 which are slidably double hung in a building 13. Thiswindow assembly 10 includes window jambs which include metallic, contoured outer sections 14 which have channeled foot portions 15 which engage, as by a slidably interlocked joint, with window jambs 16, usually made from wood or equivalent material. A jamb filler strip 17 is also shown associated with the outer portion of the jambs 16 to compensate for a reduction in width of the upper sash 12 in this particular window assembly. For purposes to be described hereinafter in more detail, the upper sash 12 is narrower in a lateral width than the lower sash 11 to facilitate tilting the windows inwardly of the window assembly for cleaning or repair purposes, as desired.

Such window jamb outer section 14 may also include an attachment foot or extension 18' that is of a substantial conventional design and is adapted to bear against the building 13 to be secured thereto in a conventional manner. However, at the same time, the particular construction of the window jamb of the window assembly is such that it prevents heat flow from the outside of the building 13 to the inside thereof and substantially eliminates sweating or heat flow through the window jamb.

One important feature of the present invention is that a balance guide, or slide rail 19 is operably associated with and suitably attached to each of the vertically extending window sash rails 11a and 11b, and 12m and 12b of the lower and upper sashes, respectively, and protrude laterally outwardly therefrom. These balance guides may be of any suitable construction, and preferably are of substantially channel-shape in horizontal section with the open end of the channel facing laterally outwardly of the window sash. The balance guides can be formed from extruded vinyl resin plastic material, for example, or it may be made from other known materials. Usually, the

balance guides 19 are removably interlocked with the sash rails with which they are associated by means of a laterally inwardly protruding base rib 20 formed on each balance guide which is received in a generally complementary contoured recess 21 formed in the laterally outer surface or edge of each of the sash rails 11a, 11b, 12a and 12b. The balance guides 19 are slidably interlocked with individual receptive .portions of the jamb liners 22, one of which is operatively associated with each of the window jambs and suitably secured thereto. Each of these jamb liners 22 is shown as provided with an upper sash receiving section 23 and a lower sash receiving section 24 and each of these sections 23 and 24 is of generally channel shape in horizontal section and they are connected by a parting strip or blind stop 25 that usually is formed as a unit with the remaining sections of the jamb liners. These jamb liners can be made from extruded plastic material or other suitable means, as desired, and the use of a relatively hard vinyl resin jamb liner is preferred in the practice of the invention. These balance guides 19 preferably extend substantially the length (height) of each of the sashes to which they are secured, and the balance guides 19 are secured to the window sash with which they are operatively assembled by suitable means, for example, such as metal pins or studs 26 that extend through suitable apertures in the balance guides 19 and are secured to lower portions or the lower rails in the window sashes whereby the window sashes can be pivoted or swung inwardly, normally, of the window assembly with relation to the balance guides because of their releasable pressure engagement with such guides. These balance guides are retained in slidable, interlocked connection with the jamb liners by pairs of opposed ledges or

shelves

27 and 28 provided in the upper window section 23 and by similar shelves 29 and 30 normally formed as a unit with the lower sash engaging section 24 of the jamb liner. These shelves 27 through 30 engage with opposed outwardly facing, inwardly offset, short channel members or

sections

31 and 32 formed on the laterally outer marginal edges of each of the balance guides 19 whereby one of the shelves is received between or in the

channel sections

31 and 32 to retain the jamb liner in operative slidable engagement with the balance guides at all times.

Yet another feature of the present invention is that each of the balance guides 19 preferably positions a plurality of slidable spring means, such as leaf springs 33 therein. These leaf springs 33 are so carried by the balance guides 19 as to resiliently engage with the associated jamb liner 22 and urge the window sash with which such springs are associated laterally inwardly of the window assembly at all times for slidable but relatively tight engagement with associated portions of the window assembly 10.

Further details of the leaf springs 33 and the means used to secure them in the individual balance guides are best shown in FIGS. 3, 4 and of the drawings. Preferably these balance guides 19 are of generally channel shape in section, but they include the pair of opposed inwardly extending

offset sections

31 and 32 therein. A molded or preformed nylon or other plastic block means 36 is formed of such shape as to be telescopically engageable with each of the

offset sections

31 and 32 of the balance guides 19, and in general, such plastic blocks 36 are shaped to the internal contour of the balance guides 19. Normally, a pair of plastic blocks 36 are engaged with opposed end portions of each of the balance guides 19 and are suitably secured thereto in any desired manner, as by pins, screw means, or offset parts of the material forming the balance guides 19 extending into recesses provided in the plastic blocks whereby they are fixedly associated with relation to their carrier balance guides. These plastic blocks 36 preferably are provided with suitable recesses 37 therein which recesses or apertures are designed to receive end portions of the leaf springs 33 therein and with the leaf springs then being retained in the recesses 37 by any suitable means, such as epoxy adhesive means 38 which set up to a relatively hard binder mass. In general, the leaf springs 33 extend in a vertical direction, and a pair of the leaf springs are shown associated with each of the plastic blocks 36 and are so shaped as to extend in a gradual curve to lie laterally offset from the balance guides and be protruding laterally outwardly therefrom whereby the leaf springs must be resiliently deflected when a balance guide 19 is slidably engaged with its associated jamb liner 22 to compress the leaf spring and provide a resilient, flexible mount for sliding action of the window sashes in the window assembly.

In order to provide a sealing member or means to prevent air flow through the window assembly 10 in the space provided between the balance guides 19 and jamb liners 22, a flexible sealing strip 39 is suitably secured to each of the plastic blocks 36. These sealing strips 39 lie in a plane that is perpendicular to the longitudinal axis of the balance guide with which it is associated and such sealing strip is of such a length as to engage, resiliently, the associated laterally inner face of its positioning liner 22. Hence, the air space in the window assembly at the laterally outer margins of the window sashes are closed so that air cannot flow vertically of the window assembly.

Another feature of the invention resides in a sealing or insulation means 50 positioned on the jamb liner 22 and extending inwardly therefrom. FIG. 6 shows such sealing means 50 that includes a plurality of fibrous strips 51 the base portions of which are secured to a carrier plate 52. The carrier plate 52 is suitably secured to the jamb liner at the meeting zone of the sashes 11 and 12 when in closed position. FIG. 1 indicates that such sealing means closes the space between adjacent horizontal rails of the sashes, which space results from the different widths of the upper and lower sashes.

Conventional balances 40 are suitably positioned in the window assemblies and are operatively attached to the sashes 11 and 12 to aid in the sliding movement thereof in a conventional manner. The balances 40 have portions positioned within the balance guides 19 and attached thereto.

In view of the foregoing, it is believed that a novel, effective and improved sliding and pivotal window assembly has been provided by the invention.

While one complete embodiment of the invention has been disclosed herein, it will be appreciated that modification of this particular embodiment of the invention may be resorted to without departing from the scope of the invention.

What is claimed is:

1. In an assembly of a sash slidably positioned in a window jamb, including a pair of vertically extending jamb liners, and an upper and a lower sash slidably operably engaging said jamb liners, the combination which is characterized by a balance guide of substantially the length of said sashes engaging each vertical rail of said sashes and extending laterally outwardly therefrom to engage said jamb liners,

slide leaf spring means operably carried by said balance guides and engaging said jamb liners,

one end of each of said leaf spring means being operatively attached to a said balance guide and the other ends of which resiliently and slidably bear on said jamb liner, said leaf springs extending generally vertically of said sashes,

said sash balance guides being of laterally outwardly open channel shape in horizontal section,

plastic block means secured to said sash balance guides at spaced portions thereof, and

said leaf springs being attached to said plastic block means.

2. The combination according to claim 1 wherein flexible plastic sealing strips are operatively carried by said balance guides and each strip lies in a plane perpendicular to the longitudinal axis of its said balance guide, said sealing strips resiliently engaging a said jamb liner.

3. The combination as in claim 1 wherein each said plastic block means is contoured complementary to the inner contour of said balance guides, and has recesses therein for receiving an end of a said leaf spring.

4. The combination according to claim 1 wherein pivotal means secure said balance guides to said sashes adjacent the lower edges thereof to enable said sashes to be tilted inwardly, and

said jamb liners are laterally inwardly offset in the portions thereof engaging said upper sash in relation to the portions of said jamb liners engaging said lower sash.

5. The combination according to claim 4 wherein said jamb liners have sealing means secured thereto and extending laterally inwardly therefrom at the meeting area of said top and bottom sashes to close the space therebetween.

6. In an assembly of a sash slidably positioned in a window jamb, including a pair of vertically extending jamb liners, and an upper and a lower sash slidably operably engaging said jamb liners, the combination of a balance guide of substantially the length of said sashes engaging each vertical rail of said sashes and extending laterally outwardly therefrom to engage said jamb liners,

balance means operatively engaging said sashes and having portions positioned within said balance guides,

leaf showing means operably carried by said balance guides and engaging said jamb liners,

pivotal means securing said balance guides to said sashes adjacent the lower edges thereof to secure said balance guides thereto for movement therewith and to enable said sashes to be tilted inwardly at any partly open position of said sashes, and

said jarnb liners being laterally inwardly offset in the portions thereof engaging said upper sash in relation to the portions thereof engaging said lower sash.

7. The combination according to claim 6 wherein said jamb liners have laterally inwardly extending parting strip portions therein, and said lower sash engages said parting strip portions to limit inward pivotal movement thereof.

8. The combination according to claim 6 wherein said sash balance guides are of laterally outwardly open channel shape in horizontal section,

plastic block means are secured to said sash balance guides at spaced portions thereof, and

said leaf spring means are attached to said plastic block means.

References Cited UNITED STATES PATENTS 1,288,732 12/1918 Starck 49--l72 1,896,023 1/1933 Tresouthick 49172 1,896,559 2/1933 Ruchin 49-172 X 2,500,849 3/1950 Menns 4 9-181 2,752,642 7/1956 Starck et al. 4918l 3,105,576 10/ 1963 Jones et al. 49-472 3,135,014 6/1964 Martin 49l8l X 3,349,518 10/1967 Johnson 49-181 X DENNIS L. TAYLOR, Primary Examiner US. Cl. X.R. 49-174, 414

mg UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,461,608 Dated August 9, 9 9

Inventofle) Waldo hnson It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 5, line 34, "showing" should be spring SIGNED AND SEALED .Attest:

Edward M. match, In wmlm E. acuum, Altesting Qfficer comissioner Patents