US1880696A - Header strip - Google Patents

Description

R. BEYNON HEADER STRIP Oct. 4,4 1932.

Filed AprilV 25, 1929 Patented Oct. 4, 1932 UNITED STATES PAT-EN T ,risica BEES IBEYIN'ON',` OF CHICAGO,y ILLINOIS, .ASSIGNOR TO DRYDEN RUBBER COMPANY, ef;

' CHICAGO, ILLINOIS, A CORPORATION `OF ILLINOIS HEADER STRIP Application filed April 25,

This invention relates to improvements in cushioning means and also to animproved method for making the same, the invention being highly'desirable when made inthe form of a channel strip for use as a vehicle window bumper, although the invention may have other and varied uses and purposes as will be apparent to one skilled in the art. -A

As set forth more particularly in my col0 pending application for Letters Patent on channel strip and method of making vthe same, filed April 25, 1929, Serial No. 358,023, which also discloses the broad featuresof this invention, many and various types of channel strips have been developed inthe past but have, in most instances, proven objectionablev due to pecularities in structure. Under certain circumstances it is desirable to provide a very resilient channel strip equipped with a metallic backing to reinforce the stripas a whole and render the same more rigid. In

channel strips heretofore known and equipped with metallic backing means, the backing means was depended upon in most instances .25 to furnish the necessary body for the structure as a whole so that the same might be mounted upon a desired object by the driving of securing means, nails for example, therethrough. However, in these formerly known devices great difficulty was experienced in mounting the same due to the fact that the apertures in the backing element were entirely hidden by the cushioning material. Moreover, these formerly known channel strips were not as sufficiently durable as is desirable, they tending to become prematurely loosel and *misshapen. y

The presentinvention has been designed to overcome the above notedv as well as other de-V 40 fects 'and objections in the provision of'a cushioning element having a metallic back, and through which securing means may be readily and easily driven. y y

' The invention also seeks the provision'of a cushioning device equipped withl armetal or other rigid backing. member, but which doesnot depend'upo'n the aforesaid backingmember for providing the necessarybody for the strip as a whole.

A further object of the present invention is 192e. seriai No. 358,022.

to provide a new and improved method of making a cushioning device of the character described herein.

While some of the more salient features, characteristics, and advantages of a device, means, `or method embodying this invention have been above pointed out, others will become apparent from the following disclosures.

e The invention includes these and other features of construction and combinations of parts hereinafter described, and shown in a preferred form' inthe drawing, as more par ticularly indicated by the claims.

On the drawing:

Figure, l is a fragmentary top plan view of a channel strip embodying principles of the-present invention. y Y

Figure 2 1s a fragmentary bottom plan v view'of the structureshown in Figure l.

Figure 3 is a vertical sectional View, 4enlarged, and taken substantially as indicatedby line III- HI of Figure l. n y,

Figure 4 is an enlarged perspective View of a portion of the structure shown in Figure l, and illustrating an early step in the making of the structure.

Figure 5 is a perspective viewsimilar toy Figure 4t showing a later stage in the makingV of the structure.

Figure 6 is a perspective view similar to Figures i and 5, showing the structure as completed. V

Figure 7 is a vertical sectional View similar t-o Figure 3 showing a slightly different form of construction of the device.

As shown on the drawing: p

'In the structure selected to illustrate an embodiment of the present invention there is shown a channel stripincluding a base plate or rear covering'member l made of any suitablev material, but preferably ofmetal. Thisbase plate l is provided with ay series of centrally located and longitudinally extending slots 2, the slots being rather long cent slots relatively short. The vvmargins 3 and the distances between the endsr of adjal of the base plate l' areinwardly turned so as to embrace and hold the edges of a back l" member 4 of which the rear face'is vcovered Aing front portion 5 is provided, this portion being madeof anysuitable niaterial,but preferably of a highly compressible elastic substance such as sponge rubber. In the present instance, the top portion 5 is inthe form `of two spaced parallel strips of the proper con-` figuration to define therebetween a channel 6 and adjacent the bottom of this channel a groove v7, which is preferably narrower at the top than at the bottom thereof. The strips forming the top portion 5 are secured to the back member 4 in any desired manner, for example by a suitable adhesive or by ,vulcanization, and the outer portions of the strips overlie the inwardly turned flanges 3 of the base plate 1 so that the structure as a whole is outwardly symmetrical.

It is therefore apparent that the resulting channel strip isV sufficiently rigid to permit the expeditious handlingof the same, and at the same time is provided with a highly compressible elastic front portion to act as a cushioning member. Vhen it is desired to mount the strip in position in a window. rframe or 1n any other desired location, 1t 1s simply necessary to place the strip in the desired position and drive securing means through the back member 4, the securing means being lirst inserted in the groove 7. No particular attention need be given the taslr of finding an aperture in the back plate l since the relatively long slots 2 therein permit the passage of the securingv means at substantially any point along the strip. Vith reference to Figure 3, it will be noted also that the top ofthe groove 7 is narrower than the slots 2 and disposed directlyfthereabove, so that if securing means are merely inserted in the groove 7 they are in alignment with one of the slots 2.

The channel strip of my invention is best adapted for use as a header strip for automobile windows, windshields and the like; In operation the window glass, yupon being raised or lowered, is urged into the channel 6. The edge of the glass exerts a pressure agai'nstthe bottom portion of the channel 6 which compresses it,'thereby distorting the top portion 5 in such a manner that the sides thereof are bent in toygrip the glass. In thisY f manner a sealis perfected which not only acts as a weather strip but also is'useful in preventing rattling of the glass. l

lThe present invention also includes a new and novel method for economically and eX-' peditiously making the above described strip, the method being somewhat similar to that set forth in my aforementioned copending application. At the outset, the back member 4 is covered on its rear surface by the base plate l and the margins 3 of the base plate are bent around the lateral edges of the member 4to hold the same. Of course, if so desired, the base plate l may be previously formed with the inturnedzmargins 3 and the back member 4molded into the formed base plate.

After the forming of the lower structure, a mass or block 8, preferably of rubber or a caoutchouc compound previously treated with a rising ingredient of the nature of baking soda or the like, is placed upon the back member 4. The block or mass may bev of any desiredshape and preferably of a size insuiiicient to lfill a moldof a proper size to form the desired completed article. After themold is placed in position over the base structure and block 8, the entire structure is subjected to heat which causes theblock 8 tov expandA and conform itself to the interior of the mold thereby forming a highly elastic front portion for the channel strip composed of sponge rubber or similar substance. Simultaneously withthe e'zpanding and form ingpof the front portion, this'same portion is eifectively vulcanized to the back member 4 to form substantially an integral part thereof. The margins of the front portion closely embrace and follow the contour of the inturned margins 3 of the base plate 1,and may be secured thereto by impregnating or coating the inturned margins 8 with a suitable ad.- hesive if so desired. Withthis method itl is obvious that a channel strip of great durability is obtained, in Aview of the fact that the relatively stiff back member 4 and the front portion 5 are in effect one single piece and the base plate 1 is so imbeddedv in thesemembers as to render it quite unlikely that the parts would tend to separate even after long usage.

In Figure 7 I have shown Ia slightly different form of construction of channel strip,

wherein the same back member 4, andl theY same base plate l with the same inwardly turned margins 3 are used.' I-Ioweventhe front portion of the channel strip in this inf stance, is one single piece devoid of the groove 7, although this front portion 5w ismolded to form a longitudinal channell 6ay therein. This form of the device is lconstructed in the Same manner as that Vpreviously described herein, with the single exception thatv a mold of different contour is employed whereby ythe 4rubber or caoutchouc compound may also be madejof any desirableor suitable material,

and which may be formed by'an expeditious and novel method. Moreover, the structure formed after the principles of the present invention is provided with a metallic or similarly stili base plate, and notwithstanding this fact affords substantially no impedance to the driving of securing means therethrough, nor does it require any searching for a passage through the base plate for the securing means.` In addition, the resulting structure whether made in the form of a channel strip or otherwise, is exceedingly durable, easy to handle and install, and may be economically manufactured.

I am aware that many changes may be made and numerous details of construction or method may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon otherwise than necessitated by thev prior art.

I claim as my invention:

l. As an article of manufacture, a cushioning device including a hard rubber back member, a stiff covering for the rear part of said member, and a sponge rubber front portion of equal width and overlying said back member.

2. As an article of manufacture, a channel strip including a back member of caoutchouc material, a relatively stiiil covering for the rear part of said member, and a sponge rubber front portion vulcanized to said back member, said front portion having a channel therein.

3. As an article of manufacture, a cushioning strip including a back member of caoutchouc material, a-.metallic member engaging the rear face of said back member and having inwardly turned margins embracing the edges of said back member, said metallic member having a series of elongated slots therein, and a front portion of caoutchouc material more elastic than said back portion and secured thereto.

4. As an article of manufacture, a cushioning element including a base plate, a back member on said base plate, inwardly turned margins on said base plate embracing the edges of said back member, and a springy front portion secured to said back member and overlying said margins.

5. As an article of manufacture, a cushioning element comprising a spongerubber member having a channel therein, a relatively hard rubber backing vulcanized to said member and a metal reinforcing member secured to said backing.

6. As an article of manufacture, `a cushioning element comprising a sponge rubber member having la channel therein, a relatively hard rubber backing vulcanized to said member and a metal reinforcing member having lnturned flanges enveloping said backmg. f

In testimony whereof I have hereunto subscribed my name at Chicago, Cook County, Illinois.

BEES BEYNON.

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