US1767632A - Upholstery-frame attachment - Google Patents

Description

'June 24, 1930. s, L. WARREN 1,767,632

UPHOLSTERY FRAME ATTACHMENT Filed June 22, 1929 y-Patentefl June 24, 1930 UNITED STATES' SIMON L. WARREN', 0F QUINCY, MASSACHUSETTS 'UPHOLSTERY-FRAME ATTACHMENT Application led .Tune 22,

This invention relates to upholstery constructions in which coiled or helical springs are mounted within a frame on a support, usually on stri s of webbing secured to the l bottom thereo and-more particularly to means for holding such springs in position and under tension.

`In constructions of this character it is customary to employ cords which are connected to the frame and to the upper coils ofthe springs, to hold the springs under partial compression and to hold the top coils thereof in suitably spaced relation, as illustrated in mv Patent No. 1,754,921, dated l5 April l5, 19EO, in which an improved means for connecting the cords to the frame 1s disclosed. Whi this means is eective and entirely satisfactory in constructions which are usually emplo ed, in high grade constructions, in whic the springs are of extra length, 0r where the frames are shallow as compared with the height of the springs diiliculty has been encountered in preventing the coils of the springs from being forced out of the central axial (position in which they are designed to be hel For example, the pressure on the top coil of a spring is likely to be oblique to, or at one side of its axis, or center line, so that the coil will be tilted forward as it pressed downward. This action tends to force the middle coils of the spring to one side of its center line, so that the spring vthus becomes distorted and fails to function as intended. Continued distortion of a spring in this manner often results in its more or less permanent distortion, l, and also causes a strongtendency to displace its bottom coils from the support on which it `is mounted. v

The primary object of the present invention is to provide 4means for so connecting the cords to the frame that the spring coils may be effectively held against ob]ectionable move; men-t out of axial relation, and from becoming distorted by use, also to provide a device of simple construction for the above purpose which may be used inlieu of, or supplemental to the devices shown in said pending application, and which will provide an attaching means for the cordsso arranged that the 1929. Serial No. 372,969.

coils to which the cords are connected will be permitted to move vertically between the desired limits without placing undue strain on the cords when the limit yof depression desired is reached. p c

, I accomplish these objects by the means hereinafter described and as illustrated in the accompanying drawings in which:

Fig. 1 is a plan view of a portion of an upholstery frame to which an attachment embodying the invention has been applied.

Fig. 2 is a vertical sectional view of a portion of the frame, on a larger scale.

Fig'. 3 is a detail view showing the action of the attachment.

Fig. 4 is a perspective view of the attachment before application. l

Fig. 5 is a perspectiveview of a modified form of attachment.

In the drawing a common form of u holstery frame l, is indicated, havin we bing strips 2 secured by tacks to its ottom side, and on which helical springs 3 are mounted. A form of attachment 4 of the character illustrated in m pending applica- 7 tion, Serial No. 364,405, led May 20, 1929, is preferably employed on the frame directly over the spaces between the webbing strips, such attachments each comprising an attaching ring for the cords and a hook for holding the webbing supporting frame.

The type of attachment to which the present invention more articularl relates is adapted to be forme from a single length of wire, which is bent to rovide a main portion 5, corresponding in ength to the depth of the frame 1, and two end portions 6 and 7 which extend at right angles thereto and in which eyes 8 and 9, respectively, are formed, v thru which tacks may be driven to secure said 9 portions to the top and bottom sides, respectively, of the frame. A loop or eye 10 is formed in the wire at the point where the end portion extends from the main portion 5, the end portions of the loop being twisted together to giveit stability and the loop being made in somewhat elongated form to provide a nearlyv straight side portion 10', which extends approximately parallel to the'main portion 5. A second loop 11 is similarly 10 formed in or adjacent the middle of 'the por tion 5, the loop 11 likewise having a side portion 11 which is approximately parallel to said portion 5. The wire is also bent to form tack receiving oyes 12 and 13 at each side of, and closely adjacent the loop 11. A third loop 14 is also formed in the main portion 5 adjacent the end portion 7 and may likewise be provided with a similar side portion 14', although at this point a circular form of loop may be employed with practically equal advantage.

The attachment thus-constructed is connected to the frame by placing the middle portion 5 against its inner side, so that its end portions 6 and 7 engage the top and bottom sides respectively of the frame and thendriving tacks into the frame through the eyes 8, 9, 12 and 13, to secure it in position, as shown in Fig. 2.

If webbing supports are to be employed, of the character disclosed in my said pending application Serial No. 364,405, the above described attachments will be secured to the frame directly over the webbing strips, so that, in practice, they will be secured in position on the frame before the webbing strips are attached, andthe latter, when attached, will be secured to the frame over the end portions 7 of the attachments, as shown in v igs'. 1 and 2.

The manner in which springs are connected by cords to the loops of the attachments will be varied according to conditions, but, in a general way, will usually be similar to that indicated in Fig. 2, the upper loops 10 being connected' by one or more cords 15 to the upper coils of adjacent springs, the middle loops 11 being connected by several cords 16 to the middle coils of adjacent springs and the lower loops 14 being connected by cords 17 to one or more of the lower coils Vof the springs. In many instances the cords will be connected at one end, to a loop and then will be extended across the frame to an opposite loop and connected at intermediate points to various spring coils. This arrangement not only permits depression of the coils from positions above the level of the points at which the respective restrainin cords thereof are attached to corresponding positions below such points, but, by reason of the elongated forma tionvertically of the loops and their arrangement in vertical planes at right angles to the the extent to which the coi s may frames to which they are attached, the cords will be permitted to slide down on the loops to an `extent and corres ondin ly increase v be depressed without having further depression prevented by the cords, as indicated in Fig. 3.

Moreover, by providing means at, or adjacent the middle of the inner side of the frame, for the attachment of the coils at, or adjacent the middle of the springs to the frame, lateral, or transverse axial movement of the middle coils, to an extent which Awould be likely to be detrimental or objectionable, will be prevented, without restricting the extent to which the coils may be depressed by the cords which hold them in place. The cords which are attached to the middle loops 11 are principally eifective in holding the middle coils in'axial relation, although cords may be extended from the bottom loops 14 to the middle coils with satisfactory results.

In Fig. 5, a form of attachment 20 is shown which may be employed between the Webbino strips for the purposes disclosed in my sai application, Serial No. 364,405, the construe tion shown being similar to that disclosed therein, except that themain portion thereof, which engages the inner side of the frame', is provided with cord receiving rings 21 and 22, similarly located to the loops 11 and 14, and which may be employed for holding the coils in position in a similar manner to that already described.

I claim: Y

1. In an upholstery construction including a frame havmg a support at its bottom side and a series of coiled springs mounted on said support within the frame, a series of cordattaching devices, each consisting of a metal strip secured to the inner side of the frame and extending downwardly from top thereof and having a plurality of cord-receiving` loops arranged to project within the frame at different elevations between the top and bottom thereof, and cords connecting said loops and the correspondingly located coils of the springs adjacent thereto.

2. In an upholstery construction including a frame having a support at its bottom side and a series of coiled springs mounted on said support within the frame, a series of cordattaching devices, each consisting of a metal strip secured to the inner side of the frame and extending from top to bottom thereof and having a plurality of cord-receiving loops formed therein at intervals between the top- SIMON L. WARREN.

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