US2049494A - Resilient weather strip - Google Patents

Description

-Aug. 4, 1936. .1. F. FAUNER RESILIENT WEATHER STRIP Filed Aug. 27, 1955 INVENTOR. ejose zk Ffuuzer BY ATTORNEY.

Patented Aug. 4, 1936 UNITED STATES PATENT. OFFICE 2,049,494 RESILIENT WEATHER STRIP Joseph F. Fauner, Irvington, N. J. Application August 27, 1935, Serial No. 38,051 Y 5 Claims.

This invention relates to resilient weather strips similar to the kind for which Patent No. 1,052,576 was issued to me February 11th, 1913.

The object of the present invention is to provide a resilient weather strip, provided with the usual rib, which latter is designed to operate within the corresponding groove provided in the sash, or the like, in the direction substantially coinciding with the longitudinal center plane of said rib.

Another object of this invention is to provide in connection with the rib formation of the weather strip means for urging the rib outwards, substantially in the direction corresponding to the longitudinal center plane of said rib.

The foregoing and still further objects and advantages of this invention will become more fully apparent fromthe ensuing description and the-accompanying drawing, forming part of my invention, and in which Fig. 1 indicates a typical cross-sectional vie through one design of my invention;

Fig. 2 is a similar cross-sectional View. through a modified form of my invention;

Fig, 3 is still another modified form of my invention, shown in cross-section;

Fig. 4 is a corrugated resilient member adapted to be inserted between the rib formation and the back portion of a weather strip;

Fig. 5 illustrates a cross-sectional view through a weather strip provided with an end bead, and having the general characteristics and functions of the weather strips of Figs. 1, 2 and 3;

Fig. 6 isa modified form from that shown in Fig. 5;

Fig. 7 is a cross-sectional view through a similar construction of my device, as shown in Fig. 5, but without a side flange, and shown in its free, normal position;

Fig. 8 illustrates the same construction as shown in Fig. '7 in its compressed position, or a position under tension, and

Fig. 9 is a cross-sectional illustration of a composite modification, combining a construction similar to that of Fig. 8 with an additional resilient member.

. Referring now specifically to Fig. 1, numeral It] indicates in broken lines a part of the window frame provided with separating bead I I, and an attaching bead l2, while numeral I3 indicates a portion of a sash provided with the usual groove for accommodating the rib formation I4 of a resilient weather strip. This rib formation constitutes a portion of the weather strip directed against the sash,,and terminates at [5 into an overlap, while the left-hand end is looped at It and continues into a back member H, which is shaped so as to form a raised portion IB exactly behind rib formation I4.

The highest portion or the highest part of curved portion l8 meets with the lower edges of the rib formation, and is intended to push the latter outwards in the direction indicated by the arrow. Continuing from the raised portion 18, the back member extends to the right and is preferably provided with parallelly arranged ribs, indicatedat l9, and which ribs are forming a reinforcement of the free leg of back member ii. The end of the back member is overlapped by attaching bead l2, secured to the window frame. g

In Fig. 2, a similar window structure is shown,

to that illustrated in Fig. 1, which is equipped with a modified form of a resilient weather strip, which again consists of a rib formation 20, extending centrally from a facing member into the sash frame, and which terminates at'its right end into an overlap'2l. The opposite end of the facing member is looped at 22, and continues in a substantially straight line in the form of a back member 23.

The right-hand end of the back member is usually attached to framework Ill and is covered by attachingbead l2. Between the facing portion of the weather strip and the back member 23, there is shown a corrugated, curved spring member 24, which is so arranged that its highest point engages the lower corners of the rib formation 20, while its edges bear against back member 23. This spring member 24 takes the place of the raised portion [8 of backmember ll, shown in Fig. 1. The spring member is illustrated in perspective view in Fig. 4, and constitutes a continuous strip, which'is inserted behind the rib formation 20, prior to the attaching of the weather strip.

Spring member'24 is intended toforce rib 20 outwards in the direction indicated by the arrow, which corresponds to the longitudinal center plane of the rib.

In Fig. 3 is illustrated a modified form of Fig. 2, in which the rib portion 20 and back member 23 is identical, whereas the position of spring member 24 is reversed in that the highest portion thereof bears against back member 23, while its edges bear against the side flanges of rib 20. Also this constructionis intended to operate the rib in the direction indicated by arrows.

The modification shown in Fig. 5 consistsof a back'member 25, which terminates at its left end into a bead '26,adapted to overlap the edge of the window frame when the device is in its operative position. From flange 26 extends substantially at right angles to the sash engaging structure of the device, which consists of the left engaging or sash-contacting portion 21, the right engaging or sash-contacting portion 28, and the rib formation 29, formed substantially centrally between these engaging portions. Engaging portion 28 terminates in an underslung, resilient, preferably corrugated member 39, which bears with its roundedfedge against the inner face of back member 25.

From this construction, it will be seen that the tendency of the combined action of the resilient back member 25, and the underslung portion 30, results in urging rib formation 29 outwards in the direction of the arrow indicated, which corresponds to the direction of the longitudinal center plane of the rib formation.

A similar construction to that described in connection with 'Fig. 5 is illustrated in Fig. 6, in which againaback member 25' is shown, terminating at the left end into an overlapping bead 2B, which is intended to engage the sash corner of the structure, and which continues into a left hand face portion 21', a rib formation 29', and

the right hand face portion 28, which latter again terminates into an underslung, corrugated,

35, terminating in resilient,junderslung, corru gated portion 36. In its free position, the rib formation 34 is elevated above the'back member 3|, as illustrated in Fig. 7, while when compressed, the 'rib formation is caused to descend towards the back member. During each of the movements, however, the rib formation 34 is maintained ma vertical-plane tothe back memher, which is the prime requirement of the present invention. 1 v f In Fig. 9 there'is illustrated a composite modi-. fication consisting substantially of the structure shown in Figs. 7 and 8,"provided with a feature of reinforcement andcorrugation, as shown at l9 in Fig. 1, and including anadditional resilient member, such as 'shown in detail in Fig. 4, and illustrated in connection with the rib formations disclosed in Figs. 2 and 3. This structure consists of a rib formation consisting of rib 31 from which extend sidewise, at the bottom thereof, legs 38 and 39, which terminate into rounded ends and 4|, respectively. 7

Continuing from rounded end 40 is the resilient back member 42, whichis preferably provided with corrugated reinforcements 43. From rounded end 4| there extends a corrugated and reinforced resilient element 44, which bears against resilient back member 42- It will be observed that the rounded ends of theribformation provide a spacing between the rib formation and the back member connection, and the rib formation and the connection of the resilient element 44. I

Within the spaces of the rounded ends are lodged the side edges of an additional resilient member 45, so arranged as to permit its edges to extend into the rounded ends of the rib formation, when pressure is applied against the latter.

All of the modifications described in the foregoing specification are primarily designed for assuring a uniform, even and simultaneous bodily movement of the entire rib formation, that is to say, of the portions including the rib and the sash-contacting side legs, in which the latter move in a direction substantially parallel to the attaching face of the back member, while the rib operates in the direction of its longitudinal center plane. Both sash-contacting portions are designed to engage the sash with their entire faces.

I have found during my many years of practical experimentation that in order to assure continuous and faultless operation of weather-stripping'in connection with window sashes, or like instrumentalities, it is essential that both the rib itself, as well asits legs, engage suchin'strumentality fully, that'is to say, they all have to form a continuous contact-with the entire surfaces with which they are to cooperate. I also found it essential that theback member should be made atleast twice as wide as the combined width of the sash-contacting portions of the rib formation; inasmuch as an extensive contact between the back member and the window frame renders the weather strip practically weather-proof.

I have found that'if such uniform, even cooperation does not takeplace, the weather strip will have the tendency of, what may be called cantering, whereby only portions of the rib formation and of the legs engage the sash, or like instrumentality, and cause excessive wear and tear of certain portions of the contacting surfaces, which not only results in faulty operation, but also causes partial or no weather protection.

These disadvantages I have found in connection with my invention covered by patent pre-- viously alluded to, which has proved, after years of usage, that thesashes wore -out, as well as the strips themselves, and eventually precluded the operation of the sashes withinthe-window frames.

The present invention completely overcomes these disadvantages in that it forms an intimate, uniform contact of all portions of the rib formation against the instrumentality engaged thereby, whereby the wear and tear is distributed over a broad surface and is comparatively imperceptible. At the same time, the present device assures continuous and complete silence in operation for the life of the weather strip.

IIn constructing my device, I preferably use metal, such as zinc, aluminum, tin, copper, brass, or rust-proof steel, and for the auxiliary spring member I employ in some of the structures shown, I prefer to use steel members, plated with cadmium or aluminum coating, preferably if the latter forms an alloy with the-steel. I may also use spring bronze for making the auxiliary resilient member. Obviously, of course, I shall not be limited to anyparticular material mentioned above. While I have shown-specific forms of my invention, be it understood that changes and improvements'may be made therein, and I therefore reserve for myself the right to make such changes, allwithin the broad scope of my invention, as set forth in the annexed claims.

I claim:

'1. The combination with a window frame and a grooved sash, of a resilient'weather strip,'se-

cured to said frame and'in operative engagement with said sash, adapted to exert with its entire sash-engaging portion a uniform pressure against the sash, said weather strip comprising a rib formation and a back member integral therewith,

said rib formation consisting of a rib arranged substantially at the centre of two straight-faced, adjacent sash-abutting portions arranged in alignment in respect to one another and adapted to contact the sash with their entire faces; said back member forming a resilient continuation of one'of the sash-abutting portions and being substantially twice as wide as the combined width of both sashabutting portions and being secured with its free end to said frame, a resilient member forming an integral continuation of the other sash-abutting portion and bearing against the inner face of said back member, said back member and said resilient member being constructed and arranged for yieldingly urging said rib formation against the sash so that the contacting faces of 'both sash-abutting portions uniformly bear against said sash with their entire surfaces, preventing tipping or partial disengagement of the weather strip from said sash.

2. In a resilient weather strip, adapted to bear with its entire engaging surfaces against the commodity for which it is intended, said strip comprising a rib formation and a resilient back member, said rib formation consisting of two adjacent abutting portions in alignment with one another, and a rib extending substantially centrally from, and forming an integral part of said abutting portions, the latter portions and said rib constituting in their entirety the contacting surface of the strip; said resilient back member forming an integral part of said rib formation and a continuation of one of said abutting portions, a resilient element forming an integral part of said rib formation and a continuation of the other abutting portion, said resilient element bearing against the inner face of said resilient back member and adapted, together with the latter, to urge the entire engaging surface of the strip uniformly in the direction from said back member so that the abutting portions will bear evenly with their entire surfaces against a commodity with which they are designed to contact.

3. In a resilient weather strip, a rib formation and a resilient back member, forming an integral part of the former, said rib formation comprising a pair of aligned, adjacent, straight-faced contacting portions and a rib extending substantially centrally in respect to, and formed from the material of said contacting portions, said resilient back member forming a continuation of one of said contacting portions and disposed beneath both contacting portions and extending beyond them for a distance substantially equal or longer than the combined width of said contacting portions, and a resilient element extending from the other contacting portion and bearing against the inner face of said back member.

4. In a resilient weather strip, as set forth in claim 3, said resilient element being corrugated and adapted to balance the resiliency of said back member so as to urge said contacting portions evenly away from said back member without permitting them to tilt.

5. In a resilient Weather strip, as set forth in claim 3, the connection between said rib formation and said resilient back member being in the form of a bead wherein the strip material is folded upon itself and disposed at substantially right angles to the straight contacting faces of said rib formation.

JOSEPH F. FAUNER.

Images