US 3168228 A
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Description (OCR text may contain errors)
Feb. 2, 1965 D. L. LEWIS UFHOLSTERING TOOL Filed Oct. 4
INVENTOR DELBERT L. LEWIS W FIG. I
AT TOR NEY United States Patent Filed Oct. 4, 1962, Ser. No. 228,465 3 Claims. (Cl. 223-102) This invention pertains to a tool primarily intended for extending a filament through an upholstered article for tying the unit together.
The device of this invention is particularly useful in the construction of upholstered furniture or mattresses. For example, in the manufacture of over-stuffed furniture, in many instances it is necessary to tie the seat back to the structure of the unit so that the back cover will be firmly anchored. When buttons are not used it has been the practice to thread an elongated needle with a cord, push the needle through the seat back at a place to be tied, disengage the cord on the back side, and then remove the needle. The other end of the length of cord then is threaded into the needle and the operation of pushing the cord through the seat back is repeated. In this manner, a loop of the cord is formed on the exterior side of the seat back, while the two ends are on the reverse side where they may be tied to the frame or base of the springs. The laborious and repeated threading of the needle for separately forcing two ends of the string used in tying the cover material has been extremely time-consuming. Consequently, this operation has become an unduly expensive one in furniture manufacture.
The arrangement of this invention provides a tool that is simple to use, but yet which reduces by at least onehalf the time for stringing the length of cord through the seat back. This is accomplished by means of a duality of elongated needles which are secured together near one end and mounted in a suitable handle. The two ends of the string are threaded through the eyes of the twin needles which then are forced through the cover material in a single operation. The needles are deflectable so that the spacing between the two sections of the string extending through the seat back may be varied appropriately to suit the conditions at hand.
It is an object of this invention to provide an improved means for securing the covers of upholstered articles.
Another object of this invention is to provide a device for tying a cover in reduced time and at less cost than normally required.
A further object of this invention is to provide a single tool that will extend both ends of a length of cord through a cover or similar article in one operation.
Yet another object of this invention is to provide a device which will permit varying of the spacing of the aper tures through which a cord used in tying a cover or the like extends.
These and other objects will become apparent from the following detailed description taken in connection with the accompanying drawing in which:
FIG. 1 is a perspective view of a seat back having a cover tied down by the device of this invention,
FIG. 2 is an enlarged fragmentary sectional view of the cover assembly,
FIG. 3 is an elevational view of the tool of this invention,
FIG. 4 is an enlarged fragmentary sectional view illustrating the manner in which the tool of this invention passes the string through the cover,
FIG. 5 is a view similar to FIG. 4 with the cover tied in place,
FIG. 6 is a sectional view taken along line 66 of FIG. 5, and
FIG. 7 is a fragmentary elevational view of a modified form of the invention in which the handle includes a stop to limit the travel of the needles and preclude damage to the goods.
With reference to the drawings, the arrangement of the invention is particularly suitable for securing the covers of seat backs, such as the seat back 1 seen in FIG. 1. As shown in the enlarged fragmentary sectional view of FIG. 2, the cover for the seat back may consist of a layer of flexible plastic sheet material 2 placed over a foam interlayer 3. The latter may be foam rubber or an open cell foam plastic material, generally around one andonehalf inches thick. A thin layer ofdenim cloth 4 lies along the inner surface of the foam 3.
For decorative purposes the cover may include a pattern such as that indicated by the lines 5 in FIG. 1. This is accomplished by sewing together the layers of the cover assembly along the lines 5 prior to associating the cover with the seat back. Hence, the layers 2, 3 and 4 are sewn together ona conventional sewing machine which compresses the foam 3 creating a crevice, as seen in FIGS. 4, 5 and 6, along the line of the articles.
In securing the cover to the seat back, a string will be passed through the cover at locations Within the crevices so that it will not be visible from the exterior when the articles of furniture is complete. This is because the deep narrow indentations where the cover assembly has been sewn hide the small exposed end of the string used for this purpose. Normally the cover will be tied down in two or more places depending upon the type of pattern formed in the cover. Usually it will be secured at some intersection of the crevices, such as at the points 7 and 8 in the arrangement of FIG. 1.
The tool 10 of this invention used in the attachment of the cord at the locations 7 and 8, or for securing other upholstered items, includes a pair of elongated needles 11 and 12. These members are provided with pointed ends 13 and 14, and have eyes 15 and 16 spaced inwardly therefrom an appropriate distance. In a typical example, this is around one and three-fourths inches.
The two needles are secured together at a location adjacent their opposite ends. This may be by means of a weld 17. Care should be taken in effecting the weld to assure that the temper of the needles is not lost. The attachment of the needles should be spaced a considerable distance from their tips 13 and 14, being preferably 1 around nine inches from the outer ends of the needles.
A handle 18, which may be of plastic or wood, carries the two needles adjacent the location where they are secured together.
In use of the device of this invention, a length of string 20 is threaded through the eyes 15 and 16 of the two needles. The ends 21 and 22 of the string, therefore, extend beyond the two needle eyes, while there is a loop 23 between the two needles. With the needle so threaded, it is introduced at its tips 13 and 14 into the crevice adjacent one of the locations where a tie is to be effected. Then as the looped portion 23 is held the needles are ad vanced axially. This causes them to pierce the cover at the crevice, bringing the ends 21 and 22 of the string through the cover to the back side. An intermediate position with this accomplished may be seen in FIG. 4. The needles are advanced through the back a suflicient distance so that as the loop 23 is held the ends 21 and 22 are disengaged from the needles by being pulled out through the eyes 15 and 16. Then by retracting the handle 18 the tool 10. is removed from the seat back and is ready for an additional threading operation. This leaves the loop of the string extending through the openings in the cover formed by the needles 11 and 12, with the free ends 21 and 22 disposed on the reverse side of the cover. This permits the string to be tied to the spring base or any convenient structure (see FIG. 5). The string Patented Feb. 2, 1965.
is drawn tight enough so that the cover is brought against the outer end of the coil spring 26, hence being held firmly in place.
It can be seen, therefore, that through the provisions of the securing of the needles together, such as by the weld 17, at a location well inwardly of the outer tips of the needles. This permits the tips 13 and 14 to .be spaced apart any desired distance'as they are forced through the cover assembly with the string. This greatly adds to the versatility of the tool of this invention, because the spacing at the loop end of the string should vary depending upon the particular cover material used. Where the cover material is heavy, the needle ends are spread farther apart so that the openings through the cover are separated by a relatively large distance. For thinner covers, on the other hand, the points 13 and 14 are kept close together with only a small loop section between the apertures through the cover. By being located aconsiderabl distance from the needle tips, the attachment of the needles does not be used advantageously regardless of the nature of the I a cover being attached.
The welded connection of the two needles also provides the unit with the strength needed for use in most upholstering jobs. The attachment assures that the needles cooperate as a column to permit them to be driven through an upholstered article of any nature. If the needles had no interconnection, however, they could move independently when under load, which would permit excessive bending and breakage in many instances.
In order to prevent the needles from being forced toofar into the item being sewn, the construction of FIG. 7'
. the needles. This makes it impossible to insert the needles to the point where the goods will be damaged. If desired,
5 the end portion 28 may be formed as a separate collar 7 rather than being integral with the handle as illustrated.
The foregoing detailed description is to be clearly understood as given by way of illustration and example only, the spirit and scope of this invention being limited solely by the appended claims.
I claim: 1. An upholstering tool for inserting a filament through an article of furniture comprising a pair of elongated needles,
each of said needles having a pointed distal end, an eye adjacent said distal end, and an elongated shank extending from said distal end, means attaching said needles together at a location remote from said distal ends so that said needles are in a side-by-side relationship,
said location being sufliciently spaced from said distal ends that said distal ends are movable toward and away from each other by deflecting said shanks of said needles intermediate said attaching means to said distal ends,
said shanks of said needles having portions extending beyond said attaching means on the the side thereof remote from 'said distal ends, and a handle,
said portions of said shanks beyond said attaching means extending into said'handle,
whereby said handle carries said needles for providing a means for forcing said needles through an upholstered article of furniture.
' 2. A device as recited in claim 1 in which said attaching means is provided by a welded connec References Cited by the Examiner UNITED STATES PATENTS Very l22222 Hill l1280 X Zofuass ll23 8/50 Hearst et a1. 223-10 2 8/52. Hoefle 223-102 8/55 Germany; 8/50 Great Britain.
JORDAN FRANKLIN, Primary Examiner.
THOMAS J. HICKEY, Examiner.