US1867607A

US1867607A - Webbing support

Info

Publication number: US1867607A
Application number: US442016A
Authority: US
Inventors: Simon L Warren
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-04-05
Filing date: 1930-04-05
Publication date: 1932-07-19
Anticipated expiration: 1949-07-19

Description

Filed April 5, 1930 Izvenion gr 0 WW1 Patented July 19, 1932 UNF'TE SIMON L. WARREN, 0F QUINCY, MASSACHUSETTS wnniiuc surronr Application filed April 5,

This invention relates to certain improvements in devices employed to support, or retain in position, the spring supporting webbing usually employed in upholstered furniture, devices of this character being disclosed in the patents to Krause, No. 1,678,474, dated JulyQer, 1928 and No. 1,700,939 dated Feb ruary 5th, 1929 and in my Patent No. 1,7 37,- 815, dated December 3,1929.

While the several types of devices disclosed in said prior patents satisfactorily perform their intended function, they are all primarily adapted for use in new construction, or when the seat bottom has been entirely removed, so that they may be applied from the top side of the frame, as itis at least very difficult, if not practically impossible, to apply these devices when working from the bottom side of the frame, for the reason that they must be secured to the frame above the webbing and must be applied after the webbing has been tightly stretched and secured to the frame, and the spaces between the edges of the adjacentstrips of webbing are usually too narrow to permit the use of a tool therebetween in attaching these devices to the frame. Moreover, it is difficult, or practically impossible to apply the U-form, or stirrup type of these devices in the corner of the frame where corner blocks, and certain types of leg construction are employed. Also, none of these devices can be employed where a single fabric sheet is employed over the entire bottom of the frame, in lieu of the separate strips.

The objects of my invention are to provide a form of support which may be readily tap: plied, either to separate strips, or complete fabric sheets, from the bottom side of the frame, so that it may be effectively employed in repair work, as well as in new construction, and the application of which will not be interfered with by corner blocks and leg constructions, and which may be applied at a low labor cost and may be manufactured at a cost which will not substantially increase the expense incident to the use of such devices,

I accomplish these objects by providing a strap device, or plate of rigid metal which is adapted to be secured to the frame beneath the 1930. Serial No. 442,016".

spring supporting fabric in position to draw the fabric about the inner lower edge of the frame, from'the point where it is attached to the under side thereof, and upwardly against the inner side of the frame, said device being provided with a supporting face which engages the under side of the fabric, as it eX- tends from said inner side, and is connected to the frame by fasteners which extend outwardly through said device beneath said face and into the frame from its inner side and, preferably, also by fasteners which extend upwardly through said device into the frame fromits under side. 1

For a more complete disclosure of the invention, reference is made to the following specification, in connection with the accompanying drawing, in which I Fig. 1 is a sectional view, at line- 1-1 of Fig. 2, of a portion of an upholstery frame provided with a preferred embodiment of the invention.

Fig. 2 is a bottom plan view of a portion of the frame.

Fig.3 is a detail perspectiveviewof a supporting device, which I preferably employ.

Fig. 4: is an elevation, partly broken away, of a somewhat modified form of the invention.

Fig. 5 is a sectional view of the construction shown in Fig. 4:.

In the drawing a indicates an ordinarywood upholstery frame, to the normally under side of which a series of webbing strips 1) are attached in the usual manner, by tacks 0, which are driven through each end portion of each strip and upwardly into the frame, the webbing being tightly stretched crosswise of the frame in the usual manner and having the usual spiral seat-supporting springs d mounted thereon. In practice the strips are preferably doubled back to form end portions Z), which are of suiiicientlength to eXtendfor a short distance within the frame, the tacks c then being driven through a doubled portion of the strip.

A preferable embodiment of my present invention comprises a flat plate a of stiff sheet metal which is of a length approximating to the width of the webbing strips 6, and is of and then will extend right a width approximating to, or slightly less than the thickness of the material of which the frame is formed, said plate being provided with several tack holes f, which may be variously arranged, and preferably having one longitudinal edge portion provided with a series of notches g, for a purpose to be explained.

The opposite longitudinal edge-portion of the plate is bent nearly right angularly to form a flange h, the extreme edge portion of which is bent reversely to form a rounded, or rolled edge 2', the several bends being curved to avoid sharp angles and the flange portion it being provided withseveral nail holes 7' close to said rolled edge, which will be ar;

ranged in such positions with relation to the holes f that nails or tacks driven through these holes into the frame will not encounter each other.

When applying the above described plate 6 to an upholstery frame to which the webbing strips have been attached and stretched tightly across the same, as indicated, the frame will usually, for convenience, be held in an inverted position. In applying the plate, the rolled edge portion 2' will be pressed against the under side of the strip close to the inner edge of the frame, and usually against the doubled back end portion 6 of thestrip, to prevent wearing or cutting action on the strip portion which receives the strain in use. The plate is then pressed against the strip until the flat portion thereof bears firmly on the strip portion which is directly on the frame, or on the heads of the tacks c which secure it thereto, thereby causing the adjacent strip portion to be drawn about the lower inner edge of the frame and against the adjacent portion of its inner side, and, while held in this position, nails are driven outwardly of the frame through each hole 7', through the strip and into the frame from its inner side, and tacks, or nails m are driven upwardly of the frame through holes f, through the strip, and into the frame from its under side. The nails 7c are driven somewhat upwardly, as they are driven outwardly, so that they extend obliquely to the inner side of the frame, and thus extend divergently with relation to its under side, as shown in dotted lines in Fig. 1, to avoid danger of splitting the wood of the frame, not only when the nail is driven, but when it is later subjected to the downward pressure to which it will be subjected by the webbing strips. In practice, nails of uniform diameter are employed for this purpose in preference to tacks, as they are more likely to be retained by the wood, in case it shrinks.

As a result each strip to which a plate 6 is applied, will be drawn upward about the inner lower corner of the frame, so that it will be held against the inner side thereof, angularly over the rounded face of the rolled edge 2', so that all the strain on the tacks 0, which attach the strips to the frame before the plate is secured in position, will be applied at right angles thereto, while the downward force on the strips applied by the springs d, will be almost wholly resisted by the nails 70, to which this force is applied transversely and nearly perpendicularly. The action of the nails k, in resisting this force, will also be somewhat supplemented by that of the tacks m, the heads of which engage the under side of the plate. The net result is that the webbing will be supported as securely and in practically the same manner as with the prior devices, the difference being in the means by Which this result is effected. It will be noted that the nails, tacks or other form of fastener, which secure the plate 6 in position. pass thru the strip and thus act directly as an additional attaching means therefor, while the plate, by being supported in engagement with the heads of the tacks 0, will act to hold these tacks in position, in case the wood should shrink so that they became loosened therein.

In practice, it is considered preferable to secure all the webbing strips at both ends while tightly stretched, before the plates e are applied, so that, when said plates are applied the strips will be further tightened.

The notches 9 formed in the outer edge portion of the plate e permit the usual cover 0 for the under side of the upholstery, to be attached by tacks, as n, which may be driven through the notches 9 into the frame in sufiiciently close proximity to enclose the space tightly.

While the action on a single strip of webbing has been described in connection with a support or strap device which extends for only the width of the strip, and while this arrangement is preferable, it will be apparent that the device will have the same action when employed in connection with a single textile web, or sheet which extends over the entire bottom of the frame, in which case the supporting devices will either be applied in sections, or will be made in lengths suflicient to extend the entire length of the different sides of the frame.

It will also be apparent that the supporting device may be made to extend continuously from one strip to the next, as indicated by the strap h in Fig. 4, and that the plate part which extends beneath the frame may be entirely omitted, as indicated in Fig. 5, in which case the nails k which pass obliquely thru the strap and outward and upward in the frame, will be wholly relied on to support the webbing.

The above described webbing supporting device may also be advantageously employed where the webbing cannot be secured to the bottom side of the frame, but must, of necessity, be secured to its inner side close to its bottom by tacks which are driven thru the webbing into the frame from its inner side, as indicated in one of the modifications shown in my said prior Patent No. 1,737,815. Under crosswise of the frame from its under side and having fasteners securing the same thereto, a strap of rigid material arranged to engage the under side of the webbing within the frame and to hold the same against the inner side of the frame adjacent the lower inner edge thereof, said strap having a top face with which the webbing is engaged as it extends inward from said inner side and fasteners engaged with the strap and extending obliquely outwardly and upwardly thru the strap and webbing and into the frame from its inner side.

2. In an upholstery construction of the character described, a frame, a webbing stretched crosswise of the frame and secured to its under side, a rigid plate disposed on the under side of the webbing directly beneath the frame and having a flange at its inner edge extending upward within the frame in proximity to its inner side and engaged with the under side of the webbing in position to support the same above the inner lower edge of the frame and fasteners engaged with said flange and extending into said frame at its inner side.

3. In an upholstery construction of the character described, a frame having a webbing stretched crosswise thereof and secured to its under side, a rigid plate disposed flatwise on the under side of the webbing directly beneath the frame and having an upturned flange arranged to engage the under side of the webbing within the frame and adjacent its inner side and to support the webbing above the bottom side of the frame, and fasteners extending upwardly through the plate into the frame and outwardly thru said flange into the frame from its inner side.

4. I11 an upholstery construction of the character described, a frame having a webbing stretched crosswise thereof and secured to its under side, a rigid plate disposed flatwise on the under side of the webbing direct- 1y beneath the frame and having a flange formed rigidly therewith and extending upwardly therefrom thruout the length of its inner portion, said flange having its edge in proximity to the inner side thereof, and fasteners engaged with said flange and extending thru the webbing into the frame from its inner side;

In testimony whereof, I have signed my name to this specification.

' SIMON L. WARREN.

rolled reversely tov provide a curved face arranged to engage the under side of the webbing and to support it within the frame