US2899249A

US2899249A - Sewing machine supporting stand

Info

Publication number: US2899249A
Authority: US
Priority date: 1958-05-21
Publication date: 1959-08-11
Anticipated expiration: 1976-08-11
Also published as: DE1132782B; GB856237A

Description

c. o. KISHIBAYI 2,899,249

SEWING MACHINE SUPPORTING STAND Aug. 11, 1959 Filed May 2 1, 1958 4 Sheets-Sheet 1 INVENTOR. I3 Charles 0. Kishibay C.'O. KISHIBAY -SEWING MACHINE SUPPORTING STAND Aug. 11, 1959 4 Sheets-Sheet 2 Filed May 21, 1958 mm I 1i i on W w m .2 M Q QT. W. m. v T m7 9 8 2 P Q INVENTOR. Charles 0. Kishibay L v-aw ATTORNEY C. O. KISHIBAY SEWING MACHINE SUPPORTING STAND Aug. 11, 1959 4 Sheets-"Sheet 4 Filed May 21. 1958 INVENTOR. Char/es 0 Kishibay ATTORNEY Fig. 6.

2,899,249 snwnsc MACE SUPPORTING STAND Charles 0. Kishibay, Trumbull, Conm, assignor to The Singer Manufacturing (Iompany, Elizabeth, N .J., a corporation of New Jersey Application May 21, 1958, Serial No. 736,790

11 Claims. c1. ail-=12 This invention relates to a supporting stand for a sewing machine. a a I It is an object of this invention to provide an improved individual supporting stand upen which a sewing machine, a power transmitter, and a work supporting table top are carried independently one from the other.

It is also an object of this invention to provide a supporting stand of the above character with means for damping transmission of vibration between the sewing machine, power transmitter and the table rep. 7

Another object of this invention is to provide an iiidi: vidual supporting stand for a sewing machine which may be readily and conveniently modified to accommodate different combinations of sewing machines, power transmitters and table tops. p

Still another object of this invention is to provide a novel structure for hingedly supportingas'ewing machine on a supporting stand independently of a table topprovided with a cutout within which the sewing machine is arranged. I

With .the above and additional objects and advantages in view as will hereinafter appear invention comprises the devices, combinations and arrangements of parts hereinafter described and illustrated in the accompanying drawings of a preferred embodiment in which: Fig. 1 represents a side elevational view ofthe sup porting stand of this invention having a sewing machine, power transmitter and table top applied thereto, I N Fig. 2 represents a top plan view of the installation of Fig. 1' with the table top removed and indicated onlyin dot dash outline, n i v Fig. 3 is a front elevational view of the supporting States Patent stand with a portion illustrated in vertical cross sectiofi I 1 taken substantially along. line 3 -3 of Fig. 1, I a

Fig; 4 is a cross sectional view taken substantially along line 4-4 of Fig. 3 andillustrating thetable top;

the drip pan, and the knee shift presser lifiting device carried thereby, 1

Fig. 5 is an enlarged cross sectional view taken g ibstantially along line 5-5 of Fig. 2 showing the sewing machine supporting hinge, and I v Fig. 6 is an enlarged cross sectional view takensubstantially along line 66 of Fig. 2 showing the sewing machine supporting block. H v

Referring to the drawings, the supporting stand of this invention comprises a pair of upright leg members 11 preferably in the form oftubular columns. Each leg member is carried atthe bottom in a socket-12 of'a transverse foot member 13 and secured in the socketby set screws 14. Atthe upper extremity, each-leg member enters a socket 115 of a transverse arm 16 and the socket is secured on the leg member by set screws-17. The forward portions 16 of the transverse arms 16, iLe., those portions which extend toward the left in Fig. 1, prefer ably extend substantially horizontally and are joinedat the free extremities by across bar 18 which may be of relatively wide and flat shape. 7 16 ofthe transverse arms 16 are bent downwardly at;

The rearward portions a-sharp angle and formed each with a pair of apertured bosses 19. The rearward portions 16" of the transverse arms 16 are joined by a pair of

cross bars

20, 21, preferably of cylindrical tubular shape, which are secured in the apertured bosses 19.

The

cross bars

18, 20 and 21 provide a rigid bracing for the top portion of the supporting stand. For bracing the bottom portion of the supporting stand, each foot member 13 is formed adjacent the socket 12 with an inward projecting lug 22, said lugs being apertured to accommodate the extremities of a generally U-shaped rod 23 upon which a transmitter control treadle 24 is pivotally supported. Set screws 25 threaded into the lugs 22 fasten the ends of the rod 23 securely in place in the foot members 13.

Drilled and tapped into the transverse arms 16 are holes 30 into which fastening bolts 31 are threaded to secure a table top 32 on the supporting stand. As illustrated in Fig. 3, the table top is preferably counterbored to receive the fastening bolts, and a pair of shouldered yieldable cushioning members 33 are arranged on the fastening bolt [in order to isolate or minimize the transmission of vibration from the supporting stand to the table top. The table top is formed with an aperture 34 large enough to accommodate, with clearance on sides, the bedof a sewing machine, indicated generally as 35 in the drawings. The aperture 34 also accommo: dates a sewing machine driving belt- 36. Secured in the aperture 34, as by screws 37, is a drip pan 38 to the front of which is secured an angle bracket 39 to which a knee shifter device 40' is secured. The knee shifter device may be of any conventional type, such as that illustrated in the drawings in which a headed plunger member 41 is shiftable'through an opening 42 in the drip pan into operative engagement witha presser foot lifting push-rod 43 of the sewing machine. 7

. As best illustrated in Fig. 2, in which the table top has been removed and only the outline illustrated the sewing machine 35 is sustainedon the supporting-stand independently ofthe table top; Carried on the cross bar 18 by screws 50 are a pair of angle brackets 51 to. which are secured by screws 52 sewing machine support: ing blocks 53' disposed beneath the sewing machine bed: The supporting blocks 53' may be of the type usually" secured directly to the tabletop, and preferably take'the forni of corner cushions which cradle thefr'ont corners of the sewing machine bed on the cross bar 18 ofthe supporting s'tand. Secured along the rear edge of the sewing machine bed are a' pair of hinge pintles. 54 of the type disclosed in the United States patent ofKishibay No. 2,829,396, April 8, 1958. In the present construction, the hinge pintles are rubber covered and are securedto the sewing machine bed by means of holding pins 55 which are accommodated in horizontal bores 56 formed in the bed,- as illustrated in Fig. 5. Cooperating with thehinge pintles in providing a hinged support for the sewing machine are a-pair of hinge bracket members, indicated generally as 57. As illustrated in Figs. 1, 2 and 5, the hinge bracket members are formed with

sleeve portions

58 and 59 adapted to embrace the

cross bars

20 and 21; respectively. Since the cross bars 20 and zl are subs't'an tially' parallel, the hinge bracket members may he slid-' ably adjusted along the cross bars and fixed to thebars; as by a Set screw 60, Wlieri' in selected position thereo A cantilever arm 61 extending nom

tne sleeve portions

58 and 59 on each bracket member 5 7 t erminates in an upturned free extremity formed with an upwardly open socket 62 shaped to aceommodate'the' hinge pin tle 54; I

The flexibility of the corinerlcushions' covering of the hinge pintle 54 provides for isolating 3 or minimizing transmission of vibrations from the sewing machine to the supporting stand. Since both the sewing machine and the table top are independently supported with respect to the supporting stand on flexible cushioning means, vibration transmission between the machine and the table top will be eifectively damped.

Indicated at 70 in the drawings is the power trans mitter which serves, by way of the driving belt 36, to drive the sewing machine. The power transmitter may be of any conventional type preferably of a variety having a clutch brake lever 71 operably connected by means of a two part rod 72 to an arm 73 on the transmitter treadle 24.

V The power transmitter is secured by fastening bolts 74 fitted with washers 75 of rubber or other flexible cushioning material to a transmitter mounting plate 76 which is slidably pivoted on the cross bar 21 by means of a pair of straps 77. The transmitter mounting plate 76 is secured in fixed position in the supporting stand with the driving belt 36 in proper tension by means of a transmitter positioning strut 78 which is slidably pivoted on the cross bar 20 by means of a strap 79. The transmitter positioning strut passes through a clearance aperture in a block 80 pivoted beneath the transmitter mounting plate by a pair of bracket clips 81. A pair of lock nuts 82 threaded on the strut 78 one at each side of the block 80 serve to adjust the relative angular position of the transmitter mounting plate.

By means of the cushioning washers 75, transmission of vibration from the transmitter to the supporting stand is damped and, therefore, it will be apparent that with the supporting stand of this invention, vibration is effectively isolated as to the sewing machine, the table top, and the power transmitter, each of which is separately supported on the supporting stand and isolated from the others by flexible vibration damping means.

An advantage of the supporting stand of this invention is the ease with which it can be modified to accommodate sewing machines of different dimensions. In the preferred embodiment illustrated in the drawings in which a one piece table top is used, substitution of a ditferent type sewing machine would require substitution of a table top with a correspondingly diiferent shaped cutout or aperture. It is conventional in the art, however, to provide a table top with a replaceable insert so that different sewing machines may be accommodated simply by changing inserts, and it will be understood that this conventional type of table top may also be used with the supporting structure of this invention. Aside from the table top or a table top insert, no other substitution of parts are necessary to adapt the supporting stand to a different sewing machine. The hinge bracket members 57 may be shifted along the cross bars 20 and 21 by loosening the set screws 60 to align the hinge sockets 62 to suit any desired spacings of hinge pintles 54 that may be required. Similarly, the corner cushions 53 may be moved along the cross bar 18 by simple relocation of the fastening screws 50 of the angle brackets upon which the corner cushions are carried.

The power transmitter 70 may be shifted along the cross bars 20 and 21 into proper alignment with any sewing machine by loosening of the straps 77 of the transmitter mounting plate and the strap 79 of the transmitter positioning strut. Tension in the driving belt 36 may be adjusted in each case by adjustment of the. lock nuts 82 on the transmitter positioning strut.

Having thus described the nature of the invention, what I claim herein is:

1. A supporting stand for a sewing machine, comprising a pair of upright leg members, a plurality of parallel substantially horizontal cross bars carried by said upright leg members and extending therebetween, a plurality of bracket means carried on said cross bars for supporting a sewing machine, a table top, and means carried on said supporting stand in spaced relation to said bracket means for supporting said table top independently of said sewing machine.

2. A supporting stand for a sewing machine, comprising a pair of upright leg members, a transverse arm secured on the upper extremity of each of said leg members, a pair of substantially parallel cross bars secured to said transverse arms to extend therebetween, a table top, means carried on said transverse arms for supporting said table top, and bracket means carried on said pair of cross bars for supporting a sewing machine in spaced relation to said table top.

3. A supporting stand for a sewing machine, comprising a pair of upright leg members, a transverse arm secured on the upper extremity of each of said leg members, a pair of substantially parallel cross bars secured to said transverse arms to extend therebetween, a table top,.means carried on said transverse arms for supporting said table top, said table top being formed with a sewing machine accommodatingv clearance aperture, bracket means supported on said pair of cross bars and disposed beneath said table top aperture, and means carried on said bracket means for supporting a sewing machine within said table top aperture.

4. A supporting stand for a sewing machine, comprising a pair of upright leg members, a transverse arm secured to the upper extremity of each of said leg members, a pair of substantially parallel cross bars secured to said transverse arms to extend therebetween, a table top, means securing said table top to said transverse arms, said table top being formed with a sewing machine accommodating aperture, bracket means slidably embracing said pair of cross bars for selective positioning of said bracket means lengthwise along said cross bars, means for securing said bracket means in selected position along said cross bars, and means carried on said bracket means for supporting a sewing machine within said table top aperture.

5. A supporting stand for a sewing machine, comprising a pair of upright leg members, a transverse arm secured to the upper extremity of each of said leg members, a table top formed with a sewing machine accommodating aperture, means securing said table top to said transverse arms, a pair of substantially parallel cross bars disposed beneath said table top at one side of said sewing machine accommodating aperture therein and secured to said transverse arms to extend therebetween, bracket means comprising a pair of bracket members slidably embracing said pair of cross bars for selective positioning of each bracket member individually lengthwise along said cross bars, means for securing each of said, bracket members in selected position along said cross bars, a cantilever arm formed on each of said bracket members and extending within said table top aperture, and means carried on said cantilever arms for supporting a sewing machine within said table top aperture. 6. A supporting stand for a sewing machine, comprising a pair of leg members, a transverse arm secured on the upper extremity of each of said leg members, a plurality of substantially horizontal cross bars secured to said transverse arms to extend therebetween, a table top, means carried onsaid transverse arms for supporting said table top, resilient vibration isolating means interposed between said table top and said table top supporting means, means carried on said cross bars for supporting a sewing machine in spaced relation to said table top, and resilient vibration isolating means interposed between said sewing machine and said sewing machine supporting means.

7. A supporting stand for a sewing machine, comprising a pair of upright leg members, a transverse arm secured onthe upper extremity of each of said leg members, a pair of substantially parallel cross bars secured to said transverse arms to extend therebetween, a table top, means carried by said transverse arms for supporting said table top, bracket means carried on said pair of cross bars for supporting a sewing machine in spaced relation to said table top, a power transmitter mounting plate pivoted on one of said cross bars, a transmitter positioning strut pivoted on the other of said cross bars, and an operative connection between said transmitter positioning strut and said transmitter mounting plate.

8. A supporting stand for a sewing machine, comprising a pair of upright leg members, a plurality of parallel substantially horizontal cross bars carried by said upright leg members and extending therebetween, bracket means carried on at least two of said cross bars, hinge means carried by said bracket means and adapted to be secured to a sewing machine, a table top formed with a sewing machine accommodating aperture, and means in spaced relation to said bracket means on said supporting stand for supporting said table top with said aperture disposed loosely to accommodate a sewing machine supported on said hinge means.

9. A supporting stand for a sewing machine having a bed, comprising, a pair of upright leg members, a plurality of parallel substantially horizontal cross bars carried by said leg members and extending therebetween, a pair of hinge brackets slidably embracing a pair of said cross bars, each of said hinge brackets being formed with an upwardly open socket, a pair of hinge pintles rotatable in said upwardly open sockets, means for securing said hinge pintles to one side of said sewing machine bed, a pair of sewing machine supporting blocks carried by one of said cross bars and disposed beneath said sewing machine bed at the opposite side of said sewing machine from said hinge pintles, a table top having a cut-out formed loosely to accommodate said sewing machine bed, and means for supporting said table top on said supporting stand in spaced relation to said sewing machine, said hinge brackets and said supporting blocks.

10. A supporting stand for a sewing machine having a bed, comprising, a pair of upright leg members, a plurality of parallel substantially horizontal cross bars carried by said leg members and extending therebetween, a pair of binge brackets slidably embracing a pair of said cross bars, each of said hinge brackets being formed with an upwardly open socket, a pair of rubber covered hinge pintles rotatable in said upwardly open socket, means for securing said hinge pintles to one side of said sewing machine bed, a pair of resilient sewing machine cushioning blocks carried by one of said cross bars and disposed beneath said sewing machine bed at the opposite side of said sewing machine from said hinge pintles, a table top having a cut-out formed loosely to accommodate said sewing machine bed, means for supporting said table top on said supporting stand in spaced relation to said sewing machine, said hinge brackets and said supporting blocks, and resilient vibration isolating cushioning members interposed between said supporting stand and said table top.

11. A supporting stand for a sewing machine having a bed, comprising, a pair of upright leg members, a transverse arm secured to the upper extremity of each of said leg members, a table top having an aperture formed therein, means carried on said transverse arms for supporting said table top, a plurality of substantially parallel cross bars secured to said transverse arms to extend therebetween beneath said table top and to the side of the vertical projection of the aperture in said table top, a pair of hinge brackets slidably embracing a pair of said cross bars, an arm formed on each of said hinge brackets and extending upwardly into said table top aperture, said arms each being formed with an upwardly open socket, a pair of hinge pintles rotatable in said upwardly open sockets, means for securing said hinge pintles to one side of said sewing machine bed, a pair of sewing machine supporting blocks disposed in said table top aperture beneath said sewing machine bed at the opposite side of said sewing machine from said hinge pintles, and means carried by one of said cross bars for supporting said sewing machine supporting blocks.

References Cited in the file of this patent UNITED STATES PATENTS 1,681,896 Eames et al Aug. 21, 1928 2,183,366 Chason et al. Dec. 12, 1939 2,192,170 Adams Mar. 5, 1940 2,253,935 Hooh Aug. 26, 1941 2,829,396 Kishibay Apr. 8, 1958 2,830,356 Slaughter Apr. 15, 1958