US993657A - Upholstery-machine. - Google Patents

Description

R. DBIMBL.

UPHOLSTERY LOHIBE.

nruonxol nun un. 1a. nos.

Patented May 30, 1911.

V @MH Inventor ttorn sys.

nuem. ilumina. A e4 witnesses 3l /1 ,24 ,8 Inventor:

B. DEIMEL.

UPHOLSTERY IAUHIHE.

APPLIOATIOI IILED IBPT. 13,1909. Patented May 30' 2 SHEETS-SHEET 2.

i tive RUDOLPH DEIMEL, F CHICAGO, ILLINOIS.

UPHOLSTERY-MACHINE.

Speeltloation of Letters Patent.

Patented May 30, 1911.

Application 11nd September 13, 1909. Serial No. 517,356.

To all whom it may concern:

Be it known that I, RUDOLPH DEIMEL, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Upholstery- Machines, of which the following is a speciiication.

The main objects of this invention are to provide an improved machine for binding or securing the edges of upholstery coverings; to provide a machine of this kind which is of simple construction, which ma be easily operated, and which, besides facilitating the operation of securing the covers, will permit the edges of the upholstery to be separately pad ed so that an unskilled workman may form a substantiall square top edge along the sides of the cus ion, the resulting edge being more perfect than that which can be made by even a skilled workman employing the usual methods.

A specific embodiment of this invention is shown in the accompanying drawings, in which:

Figure 1 is an end elevation, away, of a machine constructe according to this invention. the upholstery bein shown in section on the machine with al of the padding material in ilace. Fig. 2 is a partial side elevation o the machine, showing the fastener holders in their different relaositions. Fig. 3 is an enlarged sectiona elevation of one of the fastener-holders with fastener in osition. 1i 4 is a section taken on the ine A-A olf Fig. 3. Fig. 5 is a partial plan view of the machine with the fasteners in the holders. Fig. 6 is a fragmentary sectional detail showing the covers secured together, prior to the release of the fasteners from the holders. Fig. 7 is a fragmentary sectional detail showing the manner in which the upholstery is afterward secured to the frame of an article of furniture. Fig. 8 is a side elevation, partly broken away, of the same.

The device shown is particularly designed to be used on upholstery which has a rutile extending along the edges, but it could also artly broken be used on upholstery which had no rullle, as other means mi ht be provided for hiding the fastening evices.

In the construction shown in the drawings, a table or platform 1 is rigidly mounted on a supporting frame 2 provided with legls 3. Figs. 1 and 2 show but one end of the ta le, the other end being similar. Bars 4 are mounted below and extend along the edges of the table 1. The bars 4 are slidablo vertically between the frame 2 and the table 1, fixed guides 5 preventing longitudinal movement of the bars 4. Cams 7 nvotcd on the frame 2 bear against the un( er side of the bars 4. The cams 7 serve to elevate the bars 4 and retain them in their elevated position, but as soon as the cams 7 arc retracted, the bars drop of their own weight. Levers 8 are pivoted at the ends of the frame 2, and links 9 connect the levers 8 with the cams 7. Stops 8^ limit the movement ofthe levers 8. Each of the bars 4 carries a plurality of fastener-holders 10, each of which comprises a plunger 11 slidably mounted in a casing 12. The casing 12 has a slot 13 into which a pin 14 on the plunger extends to limit the movement of the plunger. (Sco Fig. 2). The plunger 11 has a head 11^ at the top sup orted by a contracted {lat-sided neck 11. aws 16 are fastened to opposite. sides of the neck 11n near its lower end h v means of the rivet 16. The jaws 115 are, normall urged apart by the spring 17 located in t e aperture 18 near the upper end ot the lunger 11. The jaws extend above the ead 11^ of the )lun er 11 and have in- ,wardly projecting s oul ers 19 which grip the head of the fastener 2O when the plunger 11 is pushed downward into the casing.

he table is provided with recesses 2'1 located to receive the holders 10 when the bars 4 are raised. The length of the holder:-` is such as to bring the heads of the clips 2() substantially fiush with the upper surface of the table 1 when the bars 4 are raised. Prongs 22 are provided on the edges of the table to engage the lower cover of the upholstery and hold the same securely in place on the table.

The operation of the device shown is as follows: Assume that all of the plungers 11 are at the upper limit of theii movement within the casinfs 12. The levei 8 is first turned to the position shown by dotted lines in Fig. 1 so as to raise the bars 4 to their elevated position. This causes the jaws 15 to project above the table 1, and stand apart as illustrated at the extreme right of Fig. 2. A fastener 20 is now placed head downward u )on the head 11^ cf each plunger 11, as il ustrated in the second position from the right of Fig. 2. A downward pressure upon the fastener 20 causes the plunger to be retracted within the casi 10 and closes the jaws 15 over the head o the fastener, as in the third position from the right of Fig. 2. After fasteners 2O have been secured in each of the holders in this manner, the lever 8 is turned to the )osition of the full lines in Fig. 1 so as to lower the bars 4 and withdraw all of the fasteners 20 to a position below the upper surface of the table 1. A partly finished piece of upholstery which is to have the edges of its covering fastened is now placed upon the table.

The main part of this piece of upholstery is made in the. usual manner either by hand or by machine, as may be desired. In the form shown the piece of upholstery is of the type which is used for the seats and backs of sofa beds, and comprises an u per covering 2{" a bottom covering 24, an a la er of padding material 25 which is held in position by the usual tufting cords or devices 26. After the cushion is in position u on the table 1 the lower cover 24 is stretc ed tightly across the table and its edges are fastened by ressing them down upon the prongs 22. This lower covering is usually of canvas.

After the cushion or piece of upholstei is fastened in this manner, additional pad,-Y ding material is laced between the covers 23 and 24 aroun the edges of the cushion so as to build up a firm and approximately square upper cornered edge for the cushion. After the o eration of building up the edge of the pad ing is completed, the lever 8 is turned down against the stop 8^. This raises the bars 4 and the holders 10 so that the )rongs of the fasteners 20 project upward above the top of the table. The upper cover, which is usually of leather, is rovided with perforations 28 along its e ges for receiving the prongs of the fasteners 20. These perforiitions are usually made on the coveriii before it is placed in position upon the tab e. In the form shown, the u per cover 23 is provided with a rutile 27, an the apparatus which is herein shown is particularly designed foi fastening u holstery provided with such a rutile or ot er means for hiding the fasteners after the upholstery is in position upon the article of furnitu. which it forms a part.. The edges of tnt, upper cover 23 are forced down so as to cause the prongs of the fasteners to extend through the perforatioiis 28, and the prongs are then bent down for securing the two covers together as shown in Figs. (l and b. After the prongs of all of the fasteners are bent down, the lever 8 is swung upward to the position shown by full lines of Fig. l, thereby retracting the canis 7 and permitting the bars 4 to drop. The descent of the bars 4 causes the plungers 11 to be pulled upwardly and thereby causes the jaws of the holders to o en and release the fasteners 2O from the lio ders. This leaves the jaws open, ready for receiving another set of fasteners.

The edge flaps of the lower cover 24 are now removed from the prongs 22, and the cushion is ready to be ap lied` to the article of furniture for which it was made. In attacliin the. cushion to the article of furniture, tie cushion is first placed over theI spring frame 29, the cushion being of such size and shape that its edges tit.

around the border wire 30 of the spring structure. The edge fia s of the bottoni cover 24 are now pulled downward and stretched taut and then tacked to the frame 34 as in Fig. 7. This operation causes the edge of the cushion to assume approximately the shape shown in Fig. 7, with an approximately square u per corner edge 32. he rutile 27 is now tac ed to the frame 31 so as to hide the fasteners 20 and the edge lla s of the lower cover 24.

he use of this machine insures perfectly straight edges to the cushion, and the operation of fastening the edges is now reduced by this apparatus to such simplicity that it may be performed by a comparatively un skilled workman when thc covers are sewcd together b hand in the usual manner.

Altlioug but one specific embodiment of this invention is herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted, within the scope of the follmv ing claim, without departing from the spiritl of this invention.

I claim:-

A device of the class described comprising a stationary table, means arranged along the edge of the table below the top thereof for securing the edge of a sheet of fabric stretched over said table, said table havingr a series of openings arranged along the edge thereof, bars disposed foi` vertical movement beneath the tab e, holders carried by said bars and arranged in spaced relation on the outer faces thereof, each of said holders adapted to support a headed fastening pin with the point upward, and means for forceosw a .ng seid bars upwardly to osition the hold- Signed at Chicago this 11th day of Sepels '1n tllie openngsd in sai htablehandhsimuli tember, 1909.

mneo'us us sai ins t rou a s eet o nmteiiulysretched agross the sijacent part RUDOLPH DLIMEL of the table, each of said holders being Witnesses:

adapted to release its fastener when re- WM. R. RUMMLER,

trusted downward away from such fastener. MARY M. DILLMAN.

0091 ot this patent may be obtained tot ave een elch, by addi-suing the Commissioner of Patents, Washington, D. 0.

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