US3773310A

US3773310A - Spring construction

Info

Publication number: US3773310A
Application number: US00185196A
Authority: US
Inventors: L Crosby
Original assignee: MORLEY FURNITURE CO
Current assignee: Hartco Co
Priority date: 1971-09-30
Filing date: 1971-09-30
Publication date: 1973-11-20
Anticipated expiration: 1990-11-20
Also published as: AU6270273A; FR2251987A5; DE2357827A1; AU484374B2; GB1430438A

Abstract

Rail attachment arrangements for attaching the ends of a sinuous spring band to the rails of a furniture seat frame. The attachment arrangements include clips which facilitate rapid and accurate positioning on a frame rail. The clips can be fastened with little or no stapling or nailing, yet will not pull out. The clips provide rail top and ''''drop rail'''' spring band connections.

Description

United States Patent 1191 Crosby Nov. 20, 1973 SPRING CONSTRUCTION 3,288,503 11/1966 Slominski 267 110 5] Inventor: Lawton by, L e uff 3,525,514 8/1970 Crosby et a1 267/l 10 Assigneei f y Furniture p y, Primary Examiner-James B. Marbert Chlcago, Attorney-Clement, Hume & Lee [22] Filed: Sept. 30, 1971 [21 Appl. No.2 185,196 1 ABSTRACT Rail attachment arrangements for attaching the ends 52 US. Cl. 267/110 of a sinuous Spring band the rails of a furniture Seat [51] Int. Cl F16f 3/02 frame- The attachment arrangements include clips [58] Field of Search 267/110 v which facilitate rapid and accurate Positioning on a frame rail. The clips can be fastened with little or no [56] References Cited stapling or nailing, yet will not pull out. The clips pro- UNITED STATES PATENTS vide rail top and drop rail spring band connections.

3,276,801 10/1966 Jones 267/110 30 Claims, 18 Drawing Figures SPRING CONSTRUCTION BACKGROUND OF THE INVENTION require two staples or four nails. Where it has been I found desirable to attach the front or back end of a band, or both ends of the band, to acorresponding rail below its top edge, an anchor link arrangement of the type illustrated in applicants co-pending application, Ser. No. 137,563, filed Apr. 26, 197 1 and entitled Spring Construction, has been employed.

In the former instance, positioning and nailing or stapling of the clips on the rails both accurately and rapidly required trained, expensive labor. The labor operation necessary is frequently awkward and timeconsuming where stapling on the vertical outer surface of a rail is required or stapling on top of the rail with no provision for instantly obtaining accurate placement of the clip on the rail is afforded. Furthermore, some clip constructions presently in use have necessitated the inventorying of two separate clip-sizes, one for standard 5/4 (1 A; inch rails) and one for standard 4/4 (7/8 inch rails), with consequent additional expense involved. In addition, the conventional clip constructions of the open" type, while generally requiring only one staple or two nails, are plagued with spring ends popping out of the clips when in use.

Although a very desirable attachment arrangement is achieved with the anchor link constructions illustrated in applicants aforementioned co-pending application, it is obvious that for this attachment arrangement link attachment apertures must be drilled through the rails to receive the anchor links. Conventional clips of the drop hook type permitting attachment of the spring band below the rail top are known but they are quite costly and cumbersome to install, requiring two staples or four nails. Furthermore, their constructions are such that they often actually pull out of the inner surface of the rail.

SUMMARY OF THE INVENTION An object of the present invention is to provide new and improved rail attachment arrangements for attaching the ends of a sinuous spring band to the rails of a seat frame, for example. It is another object to provide rail attachment arrangements including attachment clips which facilitate rapid and unerring positioning of the clips on the top edge of the rail. It is still another object to provide rail attachment arrangements including attachment clips with which no stapling or nailing, or only minimal such, is required to secure a clip to the corresponding rail top edge; of the eight forms of new clips presented herein, three require no staples or nails whatever, five require only one staple or onenail, and a modification of one of the eight forms requires two nails only when nails are chosen instead of a staple. It is yet another object to provide improved rail attachment arrangements having a drop hook connection to the end of the sinuous spring band; i.e., a connection below the top edge of the rail.

It is a further object to provide new and improved attachment clips which can interchangeably be used with rails of varying thickness, i.e., either 5/4 or 4/4 rails, for example. It is still a further object to provide attachment clips wherein the band ends are positively prevented from poppin'g'out of a clip, regardless of the shock load to which the attachment arrangement might be subjected. Yet a further object is to provide attachment clips which afford noise-free'operation of the attachment arrangement without the use of noise depressing adhesive paper on the clips.

The foregoing and other objects are realized in accord with the invention by providing attachment arrangements including a family of attachment clips which are secured to a rail top edge without the use of staples or nails. In one aspect of the invention, a plurality of strategically placed tangs on a vertically depending anchor leg of the clip are readily embedded in the outer surface of the rail immediately below the top edge. This plurality of tangs differ among themselves both in depth and in vertical dispersion, thereby abso- =lutely preventing rail splitting along the grain, and increasing holding power. At the same time, the depending ahcor leg being seated against the upper surface of the rail properly positions the horizontally extending attachment leg of the clip for receipt of the sinuous spring band or a link of one type or another. An antipopout snap prevents the spring band or link from popping out of the clip when the spring assembly is subjected to shock loads, for example.

In another aspect of the invention, the attachment arrangements include clip constructions which permit attachment of the ends of the sinuous spring bands below the top edge of the rail. Several of these attachment clips utilize only a single staple or nail, combined with a tang or lip, to secure them solidly to the rail once they have been properly positioned. One form of this clip construction does function without any clip or staple, however.

BRIEF DESCRIPTION OF THE DRAWINGS The invention, including its construction and method of operation, taken with other objects and advantages thereof, is illustrated more or less diagrammatically in the drawings, in which:

FIG. 1 is a sectional view taken through a portion of a furniture spring assembly, illustrating an attachment arrangement embodying features of the first form of the invention;

FIG. 2 is a top plan view of that portion of the fumiture spring assembly, including the attachment arrangement, illustrated in FIG. 1;

FIG. 3 is a back elevational view of the attachment arrangement shown in FIGS. 1 and 2, particularly illustrating the attachment clip with the spring band removed;

FIG. 4 is a sectional view, similar to FIG. 1, illustrating a second fonn of the attachment arrangement embodying features of the invention, with parts removed;

FIG. 5 is a top plan view of the attachment arrangement illustrated in FIG. 4;

FIG. 6 is a sectional view illustrating a third form of attachment arrangement with parts removed;

band shown;

FIG. is a top plan view of theattachment arrangement illustrated in FIG. 9; V 7

FIG. 1 1 is a sectional view illustrating a fifth form of attachment arrangement embodying features of the invention, with thespring band removed;

FIG. 12 is a sectional view taken along line l2-l2 of FIG. 11; e V I FIG. 13 is a sectional view illustrating a sixth form of attachment arrangement embodying features of the invention',

FIG. 14 is a front elevational view of the attachment arrangement of FIG. 13;

FIG. 15 is a sectional view illustrating a seventh form of attachment arrangement embodying features of the invention;

FIG. 16 is a sectional view illustrating an eighth form of attachment arrangement embodying features of the invention;

FIG. 17 is a sectional view illustrating a ninth form of attachment arrangement embodying features of the invention; and

FIG. 18 is a front elevational view of the attachment arrangement illustrated in FIG. 17.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, and particularly to FIGS. 1 3, a portion of a furniture spring assembly is illustrated generally at 10. The portion of the spring assembly 10 illustrated comprises the vertical front or back rail of a furniture seat frame and one end of a conventional sinuous spring band 12. The sinuous spring band 12 is attached to the rail 11 by an attachment arrangement 15 embodying features of the invention.

The attachment arrangement 15 includes an attachment clip 20 formed from a strip of steel. The clip 20 comprises a horizontal attachment leg 21 seated flush against the top edge 23 of the rail 11 and a vertically depending anchor leg25 seated flush against the back surface 27 of the rail.

The free end of the attachment leg 21 is bent back upon itself to form a hook 30 for seating the end linear segment 12a of the band 12. The linear segment 12a is inserted into the hook 30 through its mouth 31, which opens toward the back surface 27 of the rail 11.

Formed upwardly from the clip attachment leg 21 by a die-punching operation is a locking tab 34. The locking tab 34 closes the mouth 31 to the extent that the linear segment 12a of the band 12 cannot inadvertantly pop out of the hook 30 once it is seated.

The clip 20 is normally fastened securely to the rail 11 by a series of nine tangs 40 formed inwardly of the anchor leg 25, perpendicular to it and parallel to the attachment leg 21 of the clip. The two

lower tangs

40a and 40b extend from the'two lowermost corners of the anchor leg 25. They are relatively short, only oneeighth inch in length. The remaining tangs 40 include a two horizontally spaced tangs 40c and 40d positioned above the tangs 40a but in the lower, half of the anchor leg 25, a single tang 40a in the approximate center of the leg 25, and two more horizontally spaced tangs 40f and 40g positioned above the center tang 40e in the upper half of the leg 25. The tangs Mic-40g are longer than the tangs and 40b, being three-sixteenths inches in length. Each of the tangs .40a-40g-is vertically displaced from all other tangs so that no two tangs are in alignment-inspoint of entryto the wood rail 11.

- The anchor leg .25 is'then forced, with a hammer, either manual or pneumatic; for example, toward the rail 11 and the tangs 40a-40f embed themselves in the wood of the rail.;When the anchor leg 25 has seated flush against theback surface-27 of the rail, the sinuous spring band 12 is stretched out and its last linear segment 12a seated in the hook 30 through its mouth 31, locking the clip 20 on the rail 11. The front surface 28 V of the rail virtually underlies the point on clip attachrail 11 will not be split. Tangs 40a and 40barejn near siti oning leg =1 26 seated flush against the front .128 .of the. rail.

horizontal alignment with each otherbut are quite short, and have sufficient vertical displacement to prevent splitting. The tangs 40c and 40d are longer and, according to the invention, are vertically displaced on the anchor leg 25 by a slightamount. Tang 40d is slightly above tang 40c. Thus, they do not penetrate the rail on the same horizontal grain. To the same end, tang 40g is vertically displacedsllightly above tang 40f.

No staples are requiredsto hold the clip 20 securely on the rail 11 as long as the attachment leg 21 of the clip is in substantial alignment with the longitudinal axis of the spring band 12. If the rail 11 is curved, for example, the band 12 might well extend from the clip at an angle, however. In such case, it is desirable to prevent twisting of the clip out of its seated position by nailing a staple 45 (or, in the alternative, nails) down through the attachment link 21 of the clip in the manner illustrated. To facilitate stapling the clip 20 in the manner illustrated, transversely spaced apertures 46 aredie-punched in the attachment leg 21 of the clip immediately adjacent the anchor leg 25.

Turning now to FIGS. 4 and 5, the vertical front or back rail 111 of another furniture seat frame is illustrated generally with an attachment arrangement 115 embodying features of a second form of the present invention mounted upon it. The attachment arrangement 115 includes an attachment clip'l20 formed from a strip of steel. The clip comprises a horizontal at tachment anchor leg 121 seated flush against the top edge 123 of -the rail 111 and a vertically depending posurface operation is a locking tab 134. The locking tab 134 closes the mouth 131 to the extent that the linear segment of the band cannot inadvertently pop out once it is seated.

The positioning leg 126 of the clip 120 actually comprises two downwardly extending ears die-punched from the longitudinally extending sides of the leg 121 and bent down perpendicular to the attachment section from a point virtually tangent to the curved hook 130. To properly seat the clip 120 on the rail 111, the leg 121 is rested flush on the top edge 123 of the rail in alignment with a spring band. The positioning leg 126 is then pressed flush against the front surface 128 of the rail 1 l 1 to precisely position the clip on the rail. At this point, a single staple 145 is driven down through two of the five apertures 146 die-punched through the leg 121 of the clip, or a single nail is driven through the center hole. The five apertures 146 are arranged in an X-shaped pattern so that the staple 145 or nails can be hammered in one of several orientations, in order to avoid imperfections in the rail wood, for example, and secure the clip to the rail.

Referring now to FIGS. 6-8, a portion of another furniture spring arrangement is illustrated generally at 210. The portion of the spring assembly 210 illustrated comprises the vertical back rail 211 of a furniture seat frame and one end of a conventional Z-hook end sinuous spring band, helical, or other articulate link, 212. The sinuous spring band 212 is attached to the rail 211 by an attachment arrangement 215 embodying features of a third form of the present invention.

The attachment arrangement 215 includes an attachment clip 220 formed from a strip of steel. The clip 220 comprises a horizontal attachment leg 221 seated flush against the top edge 223 of the rail 211 and a vertically depending anchor leg 225 seated flush against the back surface 227 of the rail. In the present illustration, the rail 211 is curved (for use in curved back furniture), as

- illustrated in FIG. 7, and the attachment arrangement 215 is particularly suited for use with a curved back rail 211.

The free end of the attachment leg 221 of the clip 220 has a centered aperture 230 extending therethrough for seating the Z-hook, helical or other link, 212a on the end of the band 212. The attachment leg 221 of the clip 220 is relatively narrow along its length, being only seven-sixteeths inches in width in the present illustration. Adjacent its juncture with the depending anchor leg 225, however, the attachment leg 221 widens to its full seven-eights inch width, leaving corner ears 234 on the widened sections of the attachment leg. In the clip 220 forming operation, these cars 234 are bent downwardly like plow blades at an angle of approximately 20 about axes 235 extending diagonal to the attachment leg 221 of the clip 220. As a result, these teeth 234 are orientated in the direction of the attachment leg 221 but off-set at angles of approximately 45 to the longitudinal axis of the attachment leg, as illustrated by the dotted line axes A of the teeth seen in FIG. 7.

The clip 220 is particularly suited for use on curved rails 211 and, accordingly, attachment to the Z-hook 2124 of a sinuous spring band, helical or other link, 212 which extends at an angle to the longitudinal axis of the clips attachment leg 221. To seat the clip 220 on the rail 211, the downwardly inclined teeth 234 on the attachment leg 221 are rested on the rail top edge 223 in proper alignment with the anchor leg 225 slightly spaced from the back surface 227 of the rail. The clip 220 is then hammered downwardly into the top edge 223 of the rail and inwardly toward the back surface 227 thereof. The angled teeth 234 dig into the wood of the rail top edge 223 until the attachment leg 221 rests flush against the top edge and the anchor leg 225 rests substantially against the back surface (curved) 227 of the rail.

With the clip 220 seated in this fashion on the rail 211, a single staple 245 is driven down through apertures 246 die-punched in the widest section of the attachment leg 221 on the clip. This can'be followed, if desired, by the sinking of another staple 247 into the back surface 227 of the rail 211 through apertures 248 die-punched in the anchor leg 225 of the clip.

With the clip 220 anchored in the aforedescribed manner, the Z-hook 212a of a stretched spring band, helical or other link, 212 is seated in the aperture 230 on the attachment leg 221 of the clip 220. If the clip 220 is seated on one of the more curved areas of the rail 2.11, the band might extend at a substantial angle to the longitudinal axis of the attachment leg 221, as illustrated in FIG. 7. This puts a substantial lateral stress component on the attachment arrangement 215. By virtue of the fact that the angled teeth 234 are dug deeply into the wood rail, however, regardless of which sideways direction the clip 220 is located, it merely becomes more firmly set as the stress is increased.

Referring now to FIGS. 9 and 10, a portion of another furniture spring assembly is illustrated generally at 310. The spring assembly 310 comprises a vertical back rail 311 and one end of a conventional sinuous spring band 312 with a Z-hook, helical or other link 312a at its terminus. The band 312 is attached to the rail 31 l by an attachment arrangement 315 embodying features of a fourth form of the invention.

The attachment arrangement 315 includes an attachment clip 320. The clip 320 comprises a horizontal attachment leg 321 seated flush against the top edge 323 of the rail 311 and a vertically depending anchor leg 325 seated flush against the back surface 327 of the rail.

The free end of the attachment leg 321 has an enlarged aperture 330 formed therethrough for seating the Z-hook, helical or other link 312a at the end of the spring band 312. At the opposite end of the attachment leg 321, adjacent its juncture with the depending anchor leg 325, the attachment leg widens from a sevensixteeths inch width to a short section 336 which is three-fourths inch in width. Inclined shoulders 337 are formed between the section 336 and the remainder of the attachment leg 321.

The clip 320 is normally fastened securely to the rail 311 by a series of three tangs 340 formed inwardly of the anchor leg section 325, perpendicular to it and parallel to the attachment leg 321. The two lower tangs 340a extend from the lowermost comers of the anchor leg. A single tang 340b extends from the anchor leg 325 above the lower tangs 340a, and centered substantially between the side edges of the anchor leg.

To seat the clip on the top edge 323 of the rail 311, the attachment leg 321 is rested flush on this top edge in alignment with the spring band 312 location and with the anchor leg 325 spaced from the back surface 327 of the rail 311 by the length of the tangs 340. In this light, note that the tangs 340a are slightly longer than the tangs 340b. To prevent rail-splitting along the grain, note that the tangs differ both as to length and placement. The anchor leg 325 is then hammered toward the rail and the tangs 340 embed in'the rail.

No staples are required if the longitudinal axis of the attachment leg 321 is substantially in alignment with the longitudinal axis of the spring band 312. If, however, the clip 320 is seated on a curved rail, in a manner hereinbefore discussed, it is desirable to use a single staple 345 seated through apertures 346 formed in the rearmost section 336 of the attachment leg 321.

FIGS. 11 and 12 illustrate a variation of the attachment arrangement 315 illustrated in FIGS. 9 and 10. The attachment arrangements 415 illustrated in FIGS. 11 and 12 employ a clip 420 identical to the clip 320 described above. In the attachment arrangement 415, however, the clip is secured to the rail 411 below the top edge 423 of the rail by forcing it from the back surface 425 of the rail through a bore 439 drilled horizontally through the rail at an attachment level desired.

The bore 439 is drilled with a diameter slightly less than the width of the widened section 436 of the attachment leg 421. Accordingly, when the clip 420 is forced through the bore 439 from the back of the rail 41 1, the inclined shoulders 437 slice through the wood of the rail and solidly stablize the end of the attachment leg 421. No staples are required in this form 415 of the attachment arrangement.

,The attachment arrangement 415 is particularly designed for drop hook attachments to a sinuous spring band, as has been pointed out. To serve this same purpose, while eliminating the requirement for drilling through the rail, an attachment arrangement for attaching the end of a sinuous spring band (not shown) to a rail 511 in drop hook relationship is illustrated generally at 515 in FIGS. 13 and 14. This fifth form of the attachment arrangement 515 includes an attachment clip 520 having a vertical attachment leg 521 seated flush against the front surface 528 of the rail. 511 and a horizontally extending anchor leg 525 is flush against the top edge 523 of the rail.

The lower, free end of the attachment leg 521 is diecut along spaced, vertically extending lines, to form two side strips 530. The side strips 530 are folded upwardly, in the manner illustrated in FIG. 13, to collectively form a hook 530 for seating the end linear segment of a spring band or link (not shown). The end linear segment is inserted through the mouth 531 of the hook 530, which opens toward the rail 511. The hooks 530 can be formed at any desired predetermined amount of drop, one-half inch, one inch, or greater.

A series of three tangs 540 are formed on the free end of the anchor leg 525, perpendicular to it and parallel to the attachment leg 521 of the clip. The tangs 540 are staggered, the two outermost tangs 540a extending from the corners of the anchor leg 525 while a third tang 5411b is disposed intermediate the tangs 540a and spaced one-fourth inch inwardly of the tangs 540a toward the attachment leg 521 of the clip 520.

To seat the clip 520 on the rail 511, the attachment leg 521 is rested flush on the rail front surface 528 in alignment with the spring band location, with the anchor leg 525 spaced from the top edge 523 by the length of the tangs 540. The anchor leg 525 is then hammered downwardly toward the rail edge523 and the tangs 540 are embedded in the rail until the anchor leg seats flush against ,the top edge 523.

At this point, an anchor nail or staple 545 is driven through an aperture 546 die-cut in the lower end of the attachment leg 521. The nail 545 secures the lower end of the attachment leg to the rail, and, when the last linear segment (not shown) of a spring band is seated in the hook 530, the clip 520 remains solidly seated on the rail.

FIGS. 15 and 16 illustrate variations of the attachment arrangement 515 illustrated in FIGS. 13 and 14. In FIG. 15, for example, a clip 620 which is identical to the clip 520 discussed above, in all respects but one, is shown seated on a rail 611. In this variation of the attachment arrangement, identified as 615, the tangs on the anchor leg 623 are replaced by a locking leg 640 formed perpendicular to the anchor leg 623. The distance between the locking legs 640 and the attachment leg 621 corresponds generally to the thickness of the rail 611 so that the clip need merely be slipped down over the top of the rail, as illustrated, and then anchored at the lower end to the rail by the single nail or staple 645 extending through a corresponding aperture 646, in the manner hereinbefore described. As the locking leg 640 absolutely prevents forward motion past its limit, the 5/4 rail size of this clip can also be used on 4/4 rails.

The attachment arrangement 715 illustrated in FIG. 16 is also similar to the attachment arrangement 515 hereinbefore discussed. The clip 720 and the manner in which it is secured to the rail 711 is identical to that of the attachment arrangement 515 except that the nail is eliminated and its function supplanted by making an inclined saw-cut 745 in the rail surface 728 and bending the lower end 746 of the attachment leg 721 so that it seats in the cut. With the tangs 740 pressed into the rail, the attachment leg 721 cannot pull out horizontally.

Referring finally to FIGS. 17 and 18, a portion of another furniture spring assembly is illustrated generally at 810. The portion of the spring assembly 810 illustrated comprises the horizontal front or back rail 811 of a Danish or modern style furniture seat frame on which an attachment arrangement 815 for securing the end of a sinuous spring band to the rail in drop hook relationship is mounted.

The attachment arrangement 815 includes an attachment clip 820, again formed from a strip of steel. The clip 820 comprises a vertical attachment leg 821 seated flush against the front surface 82 of the rail and horizontally extending anchor legs 825U (upper) and 825L (lower) seated against the top edge 823 and the bottom edge 824 of the rail, respectively.

Formed by die-cutting side sections of the attachment leg 821 and the lower anchor leg 825L and folding them upwardly in the manner illustrated is a collective hook 830. The hook 830 is bent to the extent that it leaves a mouth 831 into which the last linear segment (not shown) of a sinuous spring band or link is inserted and seated. With the hook 830 formed in the aforedescribed manner, it will be seen that the lower portion of the attachment leg 821 and the entire lower anchor leg 825L are relatively narrow, being only seven-sixteenths inches wide, in fact.

On the free end of the lower anchor leg 8251., an upwardly extending leg 840 is formed. Keeping in mind that the distance between the upper and lower anchor legs 825U and 825L is equal to or only slightly greater than the thickness of the rail 811 from top to bottom (dimensions of commercial lumber vary slightly), the clip 820 is seated on the rail by first positioning the clip partially under the bottom edge 824 of the rail and partially in front of the front surface 827 of it, and initially embedding the point of the tang 840 in its proper position relative to the rail. While forcing the tang 840 upwardly into the rail, then, the entire clip is rotated in a counterclockwise direction, as seen in FIG. 17, until the vertical attachment leg 821 is seated flush against the surface 827 and the upper anchor leg 825U overlies the top edge 823 of the rail 811 along its length.

At this point, a single staple or nail 845 is driven downwardly through suitably formed apertures 846 in the upper anchor leg 825U, securing this anchor leg to the rail. The clip 820 is thus securely anchored to the rail and a sinuous spring band or link (not shown) can be secured to it by seating its last linear segment in the hook 830.

While several embodiments described herein are at present considered to be preferred, it is understood that various modifications and improvements may be made therein, and it is intended to cover in the appended claims all such modifications and improvements as fall within the true spirit and scope of the invention.

What is desired to be claimed and secured by Letters Patent of the United States is:

I claim:

1. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

c. said attachment clip including attachment leg means seated on said top edge and anchor leg means seated on said back surface,

d. said attachment leg means having hook means formed thereon and a linear wire segment for connecting the end of said band to said clip being seated in said hook means,

e. said hook means being positioned on said top edge so that said linear wire segment is disposed on or in back of the plane of said front surface, and

f. tang means formed on said anchor leg means and extending generally perpendicular thereto,

g. said tank means being embedded in said back surface of said rail.

2. The rail attachment arrangement of claim 1 further characterized in that:

a. said tang means includes a plurality of tangs,

b. no two of said tangs being disposed in horizontal alignment with each other whereby they are embedded in the rail at different elevations on its back surface.

3. The attachment arrangement of claim 2 further characterized in that:

a. said tangs include at least three tangs disposed in vertically displaced relationship on said anchor leg means.

4. The rail attachment arrangement of claim 1 further characterized in that:

a. said tang means includes at least five tangs arranged in vertically displaced relationship on said anchor leg means.

5. The rail attachment arrangement of claim 1 further characterized in that:

a. said tang means includes seven tangs arranged in vertically displaced relationship on said anchor leg means.

6. The rail attachment arrangement of claim 1 further characterized in that:

a. said hook means includes a mouth opening toward said anchor leg means,

5 -b. retainer tab means formed upwardly out of said attachment leg means adjacent said mouth for preventing connecting means seated in said hook means from inadvertently popping out of said mouth.

7. The rail attachment arrangement of claim 6 further characterized in that:

a. said attachment leg means has aperture means extending therethrough adjacent its juncture with said anchor leg means for receiving fastening means forced into said top edge of said rail.

8. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

c. said attachment clip including attachment leg means seated on said top edge and achor leg means seated on said back surface,

e. said hook means including a mouth opening towards said anchor leg means,

f. retainer tab means formed upwardly out of said attachment leg means adjacent said mouth for preventing said linear segment seated in said hook means from inadvertantly popping out of said mouth,

g. tang means formed on said anchor leg means and extending generally perpendicular thereto,

h. said tang means being embedded in said back surface of said rail.

9. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

d. said attachment leg means having hook means formed thereon and said band being connected to said hook means,

e. tang means formed on said anchor leg means and extending generally perpendicular thereto,

f. said tang means being embedded in said back surface of said rail,

g. said tang means including a plurality of individual tangs,

h. no two of said tangs being disposed in horizontal alignment with each other whereby they are embedded in the rail at different elevations on its back surface.

10. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom surfaces,

c. said attachment clip including leg means seated on said top edge,

(1. said leg means having hook means fonned thereon and a linear wire segment for connecting the end of said band to said clip being seated in said hook means,

c. said clip means further including positioning means seated against said front surface for positioning said hook means relative to said front surface,

f. said positioning means including a member formed out of said leg and bent downwardly at right angles to said leg, and

g. means fastening said leg means to said top edge.

1 1. The rail attachment arrangement of claim further characterized in that:

a. said hook means includes a mouth opening toward said back surface,

b. retainer tab means formed upwardly out of said leg means adjacent said mouth for preventing connecting means seated in said mouth from inadvertently popping out of said mouth.

12. The rail attachment arrangement of claim 10 further characterized in that:

a. said fastening means includes a plurality of apertures formed in said leg, and

b. a fastening member extending through said aperture means into said top edge of said rail.

, 13. The rail attachment arrangement of claim 12 further characterized in that:

a. said aperture means comprises a series of five apertures arranged in an X-pattern whereby a staple can be seated in the top edge of said rail through said apertures on a line perpendicular to the longitudinal axis of said clip, on a line parallel to said longitudinal axis, or on a line diagonal to said longitudinal axis.

14. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprisa. an attachment clip,

b. said rail having front and back surfaces and top and bottom edges,

0. said attachment clip including attachment leg means seated on said top edge and anchor leg means seated on said back surface,

d. said attachment means having hook means formed thereon and said band being connected to said vhook means, and g Y e. ear means depending from said attachment means and embedded in said top edge for preventing movement of said clip laterally of its longitudinal axis.

15. The rail attachment arrangement of claim 14 further characterized in that:

a. said ear means are inclined downwardly from said attachment leg means at an acute angle to the plane of said attachment leg means.

16. The rail attachment arrangement of claim 15 further characterized in that:

a. said ear means includes a single car on each side of the longitudinal axis of said attachment leg means, each of said ears facing in a direction disposed at an acute angle to the axis of said attachment leg means.

17. The rail attachment arrangement of claim 16 further characterized in that:

a. said attachment leg means has aperture means extending therethrough adjacent its juncture with said anchor leg means for receiving fastening means forced into said top edge of said rail. 18. The rail attachment arrangement of claim 16 further characterized in that:

5 a. said anchor leg means has aperture means extending therethrough adjacent its juncture with said attachment means for receiving fastening means forced into said back surface of said rail.

19. A rail attachment arrangement for attaching an 10 end of a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

c. a horizontally disposed hole extending through said rail below said top edge between said front and back surfaces,

(1. said attachment clip including attachment leg means extending through said hole and anchor leg means seated on said back surface,

e. said attachment leg means having hook .means formed thereon and said band being connected to said hook means, and

g. said tang means being embedded into said back surfaces of said rail.

20. The rail attachment arrangement of claim 19 further characterized in that:

a. said attachment leg means includes an outer section adjacent its free end of predetermined width and an inner section of greater width adjacent its juncture with said anchor leg means,

b. shoulders formed on the edges of said attachment leg means between said inner section and said outer section,

c. said hole having diameter greater than the width of said outer section but less than the width of said inner section whereby said shoulders embed in the walls of said hole when said attachment leg means is passed through said hole from the back surface of said rail to seat said anchor leg means against said back surface.

21. The rail attachment arrangement of claim 20 further characterized in that:

a. said shoulders are inclined at an angle to the axis of said attachment leg means.

' 22. A rail attachment arrangement for attaching an 50 end of a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

c. said attachment clip including attachment leg means seated on said front surface and anchor leg means seated on said top edge, and

d. said attachment leg means having hook means formed thereon and said band being connected to said hook means.

23. The rail attachment arrangement of claim 22 further characterized in that:

a. said anchor leg means has tang means formed thereon and extending generally perpendicular thereto,

b. said tang means being embedded in said top edge Of said rail.

24. The rail attachment arrangement of claim 23 further characterized in that:

a. said attachment leg means has aperture means extending therethrough, and

b. fastening means extending through said aperture and embedded in said front surface of said rail.

25. The rail attachment arrangement of claim 24 further characterized in that:

a. said hook means comprises side sections of said attachment leg means formed outwardly of said attachment leg means and bent back upon themselves.

26. The rail attachment arrangement of claim 22 further characterized in that:

a. said anchor leg means includes an anchor foot depending therefrom,

b. said anchor foot lying flush against the back surface of said rail.

27. The rail attachment arrangement of claim 22 further characterized in that:

a. said attachment leg means includes a free end section thereof which is bent at an angle to said attachment leg means toward said rail, and

b. slot means formed in the front surface of said rail at an angle corresponding to the angle of inclination of said attachment leg end section,

c. said attachment leg end section being seated in said slot means to anchor the lower end of said attachment leg means to said rail.

28. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprising:

a. an attachment clip,

b. said rail having front and back surfaces, and top and bottom edges,

c. said attachment clip including attachment leg means seated on said front surface and anchor leg means seated on said top and bottom edges,

e. tang means formed on one of said anchor leg means and extending generally perpendicular thereto,

f. said tang means being embedded in one of said top and bottom edges of said rail.

29. The rail attachment arrangement of claim 28 further characterized in that:

a. the other of said anchor leg means has aperture means extending therethrough for receiving fastening means forced into one of said top and bottom edges of said rail.

30. The rail attachment arrangement of claim 29 further characterized in that:

a. said hook means comprises edge sections of said attachment leg means formed outwardly of said attachment leg means and bent back upon themselves.

Claims

1. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. said attachment clip including attachment leg means seated on said top edge and anchor leg means seated on said back surface, d. said attachment leg means having hook means formed thereon and a linear wire segment for connecting the end of said band to said clip being seated in said hook means, e. said hook means being positioned on said top edge so that said linear wire segment is disposed on or in back of the plane of said front surface, and f. tang means formed on said anchor leg means and extending generally perpendicular thereto, g. said tank means being embedded in said back surface of said rail.

2. The rail attachment arrangement of claim 1 further characterized in that: a. said tang means includes a plurality of tangs, b. no two of said tangs being disposed in horizontal alignment with each other whereby they are embedded in the rail at different elevations on its back surface.

3. The attachment arrangement of claim 2 further characterized in that: a. said tangs include at least three tangs disposed in vertically displaced relationship on said anchor leg means.

4. The rail attachment arrangement of claim 1 further characterized in that: a. said tang means includes at least five tangs arranged in vertically displaced relationship on said anchor leg means.

5. The rail attachment arrangement of claim 1 further characterized in that: a. said tang means includes seven tangs arranged in vertically displaced relationship on said anchor leg means.

6. The rail attachment arrangement of claim 1 further characterized in that: a. said hook means includes a mouth opening toward said anchor leg means, b. retainer tab means formed upwardly out of said attachment leg means adjacent said mouth for preventing connecting means seated in said hook means from inadvertently popping out of said mouth.

7. The rail attachment arranGement of claim 6 further characterized in that: a. said attachment leg means has aperture means extending therethrough adjacent its juncture with said anchor leg means for receiving fastening means forced into said top edge of said rail.

8. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. said attachment clip including attachment leg means seated on said top edge and achor leg means seated on said back surface, d. said attachment leg means having hook means formed thereon and a linear wire segment for connecting the end of said band to said clip being seated in said hook means, e. said hook means including a mouth opening towards said anchor leg means, f. retainer tab means formed upwardly out of said attachment leg means adjacent said mouth for preventing said linear segment seated in said hook means from inadvertantly popping out of said mouth, g. tang means formed on said anchor leg means and extending generally perpendicular thereto, h. said tang means being embedded in said back surface of said rail.

9. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. said attachment clip including attachment leg means seated on said top edge and anchor leg means seated on said back surface, d. said attachment leg means having hook means formed thereon and said band being connected to said hook means, e. tang means formed on said anchor leg means and extending generally perpendicular thereto, f. said tang means being embedded in said back surface of said rail, g. said tang means including a plurality of individual tangs, h. no two of said tangs being disposed in horizontal alignment with each other whereby they are embedded in the rail at different elevations on its back surface.

10. A rail attachment arrangement for attaching a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom surfaces, c. said attachment clip including leg means seated on said top edge, d. said leg means having hook means formed thereon and a linear wire segment for connecting the end of said band to said clip being seated in said hook means, e. said clip means further including positioning means seated against said front surface for positioning said hook means relative to said front surface, f. said positioning means including a member formed out of said leg and bent downwardly at right angles to said leg, and g. means fastening said leg means to said top edge.

11. The rail attachment arrangement of claim 10 further characterized in that: a. said hook means includes a mouth opening toward said back surface, b. retainer tab means formed upwardly out of said leg means adjacent said mouth for preventing connecting means seated in said mouth from inadvertently popping out of said mouth.

12. The rail attachment arrangement of claim 10 further characterized in that: a. said fastening means includes a plurality of apertures formed in said leg, and b. a fastening member extending through said aperture means into said top edge of said rail.

13. The rail attachment arrangement of claim 12 further characterized in that: a. said aperture means comprises a series of five apertures arranged in an X-pattern whereby a staple can be seated in the top edge of said rail through said apertures on a line perpendicular to the longitudinal axis of said clip, on a line parallel to said longitudinal axis, or on a line diagonal to said longitudinal axis.

14. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces and top and bottom edges, c. said attachment clip including attachment leg means seated on said top edge and anchor leg means seated on said back surface, d. said attachment means having hook means formed thereon and said band being connected to said hook means, and e. ear means depending from said attachment means and embedded in said top edge for preventing movement of said clip laterally of its longitudinal axis.

15. The rail attachment arrangement of claim 14 further characterized in that: a. said ear means are inclined downwardly from said attachment leg means at an acute angle to the plane of said attachment leg means.

16. The rail attachment arrangement of claim 15 further characterized in that: a. said ear means includes a single ear on each side of the longitudinal axis of said attachment leg means, each of said ears facing in a direction disposed at an acute angle to the axis of said attachment leg means.

17. The rail attachment arrangement of claim 16 further characterized in that: a. said attachment leg means has aperture means extending therethrough adjacent its juncture with said anchor leg means for receiving fastening means forced into said top edge of said rail.

18. The rail attachment arrangement of claim 16 further characterized in that: a. said anchor leg means has aperture means extending therethrough adjacent its juncture with said attachment means for receiving fastening means forced into said back surface of said rail.

19. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. a horizontally disposed hole extending through said rail below said top edge between said front and back surfaces, d. said attachment clip including attachment leg means extending through said hole and anchor leg means seated on said back surface, e. said attachment leg means having hook means formed thereon and said band being connected to said hook means, and f. tang means formed on said anchor leg means and extending generally perpendicular thereto, g. said tang means being embedded into said back surfaces of said rail.

20. The rail attachment arrangement of claim 19 further characterized in that: a. said attachment leg means includes an outer section adjacent its free end of predetermined width and an inner section of greater width adjacent its juncture with said anchor leg means, b. shoulders formed on the edges of said attachment leg means between said inner section and said outer section, c. said hole having diameter greater than the width of said outer section but less than the width of said inner section whereby said shoulders embed in the walls of said hole when said attachment leg means is passed through said hole from the back surface of said rail to seat said anchor leg means against said back surface.

21. The rail attachment arrangement of claim 20 further characterized in that: a. said shoulders are inclined at an angle to the axis of said attachment leg means.

22. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. said attachment clip including attachment leg means seated on said front surface and anchor leg means seated on said top edge, and d. said attachment leg means having hook means formed thereon and said band being connected to said hook means.

23. The rail attachment arrangement of claim 22 further characterized in that: a. said anchor leg means has tang means formed thereon and extending generally perpendicular thereto, b. said tang means being embedded in said top edge of said rail.

24. The rail attachment arrangement of claim 23 further characterized in that: a. said attachment leg means has aperture means extending therethrough, and b. fastening means extending through said aperture and embedded in said front surface of said rail.

25. The rail attachment arrangement of claim 24 further characterized in that: a. said hook means comprises side sections of said attachment leg means formed outwardly of said attachment leg means and bent back upon themselves.

26. The rail attachment arrangement of claim 22 further characterized in that: a. said anchor leg means includes an anchor foot depending therefrom, b. said anchor foot lying flush against the back surface of said rail.

27. The rail attachment arrangement of claim 22 further characterized in that: a. said attachment leg means includes a free end section thereof which is bent at an angle to said attachment leg means toward said rail, and b. slot means formed in the front surface of said rail at an angle corresponding to the angle of inclination of said attachment leg end section, c. said attachment leg end section being seated in said slot means to anchor the lower end of said attachment leg means to said rail.

28. A rail attachment arrangement for attaching an end of a sinuous spring band to a frame rail, comprising: a. an attachment clip, b. said rail having front and back surfaces, and top and bottom edges, c. said attachment clip including attachment leg means seated on said front surface and anchor leg means seated on said top and bottom edges, d. said attachment leg means having hook means formed thereon and said band being connected to said hook means, e. tang means formed on one of said anchor leg means and extending generally perpendicular thereto, f. said tang means being embedded in one of said top and bottom edges of said rail.

29. The rail attachment arrangement of claim 28 further characterized in that: a. the other of said anchor leg means has aperture means extending therethrough for receiving fastening means forced into one of said top and bottom edges of said rail.

30. The rail attachment arrangement of claim 29 further characterized in that: a. said hook means comprises edge sections of said attachment leg means formed outwardly of said attachment leg means and bent back upon themselves.