DE1716618U - SEWING MACHINE WITH A HANDWHEEL AND A HANDWHEEL CLUTCH. - Google Patents

Description

DR. E. WIEGAND

MÖNCHEN HAMBURG 1

DIPL-ING. W. NIEMANN

_HAMBURG \ * ti / Ji Ik «WJhiihti TELEPHONE: 330475

PATENT LAWYERS

? ». 1,6θθβ / 55

Oiager Manttfaoturing Company » Elisabeth »Hew Jersey (V * 3t» A ·}

Sewing machine ait a handwheel and. one Handwheel coupling.

The utility model "refers to sewing machines and in particular to an improved Klearaaeheibe,

as a sale of the wheel coupling of a JfähnKiscliine will,

Tielön iialirjen are HSfeaasehinen with handwheel clutches been stranded, durcii cEi # die Ilauptantriefe «- shaft of the machine connected to the handwheel or from can be separated from him ·? / when the clutch is released » can be driven without the main drive shaft to drive the Haemochine 'So I can Winder from the handwheel or from the handwheel drive belt are driven, while other 2 «& 1 * of the Höhaaecliine stay still »

Handwheel clutches have largely proven to be » Proven satisfactory, however, it has been found that

The M8her used clamping washers, in some cases problems caused _t when the coupling parts were in single engagement or loosened *

Hence, one of the main purposes of the utility model is in it to create a reinforced clamping disc, which is particularly suitable for use with a handwheel clutch iiähmaachine is suitable «

Another 2w "ek dee brewing pattern consists of" To create an improved clamping disc that bends when the handwheel clutch of the Näluaaeehlne is switched on «Crd.

There is another purpose of the utility model in creating a clamp that can be used on any type of single sewing machine of a special kind Klaöoe can be used »making the necessity No need to choose a constraint »the one for them respective HSbjaaeeMne works best

In the attached drawing are embodiments dee utility model exampleBweiae for illustration brought·

ilg »1 eats a vertical cut, which one for a UähmaBchine and especially one Handwheel coupling reproduces »which means an improved clamping disc in accordance with the utility model is used.

· * 3

2 is a bent apart, soaring view * which further! 'Eile geaäsa 3? Ig "represents 1"
. 3 is «in · side view of the la dea figures

xaoA 2 shown Klenmscheifce. 4 iet «in« view similar to i ^? ie # 1 * gives $ e ~ but one type changes an «ad bucket
template
flg «5 iet a

View, welöhö weiter felle geaäö »reproduces»
FIG. 6 is a side view of the FIGS. 4 and 5

different types of Hähmaschinon can be auegerüetet ait a handradkupplung _f which a KXeaascheiiae the heschriebenin here kind snthält · Daa Gehrauefeeaueter is jjedoeh in Figures 1,2 and 3, as applied to a motor driven by einom Hähma "sohlnen aggregate dargeotellt"

The sewing machine as such is of a known design and contains a ^ asehinenani 16, which is provided with an electrical cylindrical gland 17 "in which a main drive shaft 18 is rotatably mounted" the near-end 17 is surrounded by an open ring-shaped surface "which is formed on the machine axis 16 iet «

Another part of the sewing machine contains "" a shell-shaped cast piece 21 of the motor housing, a worm 22, a motor shaft 23 * carrying the worm 22, a beech tree "24ι" in lkmüv && 26 # "in sap wheel 27" an annular spring 28 # a "thin" metal wheel 29 and a Buna 3o * Be iet it can be seen that the motor shaft 23 the tendons 2? drives »which in turn drives aas iäahnrad 2T, Dae gear 2? is vermittele of the disc 29 and the • "'© disposed so} that the% ndrad drives 26' and now mi descriptive means 26 trtiht the handwheel either the sleeve 24, or is separated from it, in turn, the liauptantriehswelle 18 drives. Uie bushing 24 $ which is mounted on the main drive shaft t8 Tenaittele a lconiecben pin 31 "at one end" it a flange 32 ireraehen "deosen a RingXläche with the Beaugsaeichen 35 is named" The other © ade of the sleeve 24 has an end surface 34 and an internally threaded bore 36} the surface 34 is interrupted by a pair of diametrically opposed locking grooves 37. The handwheel 26, which has an inner bore 38 to accommodate the bushing 24, has an outer edge and a boss 41, the boss 41 being in its size is reduced or it becomes a reduced elongation * Within the reduced elongation 44 there is a "handwheel 26" with an annular shoulder 46 which rests against the aforementioned hanging surface 33 "

~ 5 ~ ^f /

The "outer surface of the% ndrade3 26" is a concentric lerüis-shaped recess 4? Understand which tine ring-shaped coupling surface or a seat 48 * the recess 47 k & wa accommodate a Klerame disk 49 now to be described. A coupling screw 51t which has an external K & t thread shank 52 and an attachment 53 with an inwardly protruding ring * · fdrjsigen coupling surface 54 has "iat screwed into the internal threaded bore 36 4-way socket 24" The screw 51 also has a removable socket 56 and The screw 51 is knurled in the hand to enable easy handling * So that the Kleacischeibe 49t has the ring shape "is caused" with the Beech ZVf, turn "iet <3the Kleaamecheisk 49" with one! oar from diametrically opposite aich inwards erßtreckenden TerriegelungeZungen 58 provided »which in the Verriegelunge · grooves 37 of the sleeve 24 enter · the front" or Aüe "nflache 59 of the pinching disc 49 has three outwardly directed lugs 61, and 5 'of the approach has a 62" which according to auesen directed Hache with the coupling surface 54 of the screw 51 can come into engagement * Furthermore, the outer surface 59 of the clamping disc 49 3rei rises at the same distance spaced-Ansehlageapfen $ 3 in front of "and this pin engages under certain tfiaatänden in a known ^ else the stop Stapfen 56. The inner surface 69 · ä ^ T clamping disc 49 has three worked out

Essence 711 which forms an inner surface 72 which are arranged in such a way that they can interlock with the ring-shaped coupling 48 of the recess 47 that each anaate 71 is equally spaced between a pair of lugs 61 and that each lug 61 is equidistant between. a pair of iron lugs 71 is arranged. In other words, lugs 61 and 7t are arranged alternately or at a distance from one another on the circumference around clamping disk 49, so that aneätie 61 at a distance of 60 ° iron the lugs 71 are arranged "and" since the anaatz 61 is arranged at a distance of 12o ° from each of the other approaches 61, and furthermore the 3tdtr of the aneätst 71 is arranged from other approaches "71 in the afcetand tone 12o °. Ss is eraiohtlich (Fig # 2) _t that the lugs 61 and the areas near the inner circumference of the clamping disc located on them are arranged 49 »while the Ansät" * 71 WTAE the lsefindliohen thereon surfaces 72 calibratable iron the inner periphery mm Auasenumfang the clamping plate 49 extend When the coupling screw 51 is tightened in the rewinding bore 36 of the bushing 24, the coupling surface 54 of the screw engages the equally spaced surfaces 62 on one side of the clamping chuck 49, during end the three K surfaces on the opposite side of the clamping disc mn on the annular coupling side 48 on the. Attack Ifandrad 26 .

Since the plates 62 on the tfiafawg are arranged at a distance from one another on the clamping disk relative to the surface 72, the disk bends somewhat when the coupling is tightened “very carefully”. Oiling the clamping disk enables the coupling screw 51 to be effective and _f can throw easily attracted to the handwheel with the Hauptan * trlebewelle to lock and enaöglieh * at the same time _f ftafi the Kupplntngaschrautje hei applying only a small force to be solved by the Bedienungsperaon icannt Ee further iet visible * öa3 di # lläohen 62 and 12 effective Create three-point contact between the coupling flange on the handwheel and the coupling surface on the IQeiamechrauise "with the obvious gate part" that regardless of this, "MBsItZ " between the threaded shaft 52 and the thread shaft 52 and the eyelet hole 36 is loose, the clamping disc is calibrated correctly touches the coupling surface 48 on the handwheel and consequently runs properly with the handwheel #

Figures 4, 5 and 6 have a modified execution horn of the utility model in application to a hook-and-eye chain driven by a cord or a Siemens which, among other parts, has a machine arm 116 with. a bearing bush 11? provided iet * in which a main drive shaft 118 is rotatably mounted. Other parts of the machine contain a belt 125 for "drive elneß ifendrades 126" an aylindric beech tree "124i

8th -

which is attached to the main drive shaft 118 by a "bolt 131 provided with a screw head" is provided on a second with an Iianaeh 132, one of which is designated by a "bolt" symbol 133. The other end of the socket 124 has a drinking surface 134 and a male thread bore 136j the -nuflache 134 is through a pair of diametrically opposed locking grooves 13? interrupted * The hand wheel 126 is 146 stranding "which is backed by an annular end face against the aforementioned suction surface 133 · The Aussenf laugh of the handwheel 1 £ 6 is provided with a collar 147 'having an annular Kupplimgsflache 148, and with the surface 148 3cann A part of an idemnacie disc 149 to be described now comes into contact with a coupling tube 151 which has an externally threaded shaft 152 and an inwardly projecting annular coupling surface 154 is screwed into the threaded bore 136. The screw 151 has a removable itaschlag pin 156 and a knurled hand 157 known design *

Dnjait the clamping disc 149 can rotate with the sleeve * is the lileiaascieibe 149 »it a pair of diametrically opposed" inwardly erstreikenden t curved intersections 158 provided "is that enter di · hats 137 * Per Aueeenrand the Kleioinecheibe substantially Hing shape except the fact »

that this volume has three outward approaches, with which ito points out. In a known manner, the stop pin 156 can engage, "the outer surface 159 <outer small disc 149 has three lugs 161 extending outwards" and each attachment has an outwardly directed surface 162 _f which can engage the outer curvature surface 154 The inner surface 169 of the Velcro clip 149 has three protruding lugs 171 but creates an inwardly directed surface 172 which can interlock with the ring-shaped coupling surface 148 "Which is seen as corrugated" can "2Ue approaches 161 and 171 camouflage the clamping disc 149 in the same way as the approaches € 1 and 71 at a distance around the disc 161 and 1? 1 both extend from the inner circumference to the outer circumference of the disk 149. The clamping disk 149 works in the same way as was described above with reference to the disk 49 »

Claims (5)

Eye protection requirements 1.) Mower with a main drive shaft on which there is a handwheel "that can be driven" and with a clergy joit fine front and an inner surface "glued in that": "And that a binvichtun ^ zxm optionally Vea> · bindea des Hüitöradec ait the Ilauptantriebswelle uad" to drive the handwheel of it contains a device for applying pressure to the lugs when the handwheel is connected to the Veil · 2 ") A sewing machine according to claim 1, 'characterized in that a plurality of lugs provides the rear face of the Kleaußcheibe and that zvaa selectively connecting the hand wheel old the main drive T / elle and mm, burn of ilandraäeß of their means for ilnlcgen a pressure on the approaches on both surfaces of the Klencaöcheibe vorgeßc & en iet, ν. # ηη that the handwheel is old connected to the main drive shaft » 3 #) Milling machine according to claim 2, dadux ^% ch gekennselehnet * that the attachments are arranged alternately on opposite sides of the Kiev disk in a ring around the disk. 4 ·) Mähaaachino also one of the sprays 1 Ms 3 »caused by the fact that a" wind cheek: errte "which old anoits come into engagement on the front surface of the clamping disc, the purpose of which is the use on the rear surface ICIe! ^ Washer on a lateral surface and press the handwheel in 2In ^ rIJTf 5.) Hähraaochine after oineia der Aneprtlehe 1 Mb 4 »it einor τοπ Ίβτ ¹ ? Elloertrncemon Buchoe, y / oduroh a combination of" Volle and Uuchöe is formed, and one end of this combination of v »" elle and bush ait a ^ ewindetoil and Terrdogalungsnuteii is reraehen, and that »handwheel on des? V.'ella-Buohse-Xoabination is arranged, thereby gclceimiaeiclinet » äaO s \ xn » ahX'.veiaen connecting the handwheel: ait ä ^ r combination of all and socket and to the ^Γ ! Ϊ02ΐηα ^ν ι the handwheel of it aine ring-shaped Klenaechcibe dißttt _t which an indoor and an Ausaenumfang and front and Hinterfläohan * »owie a plurality of Verrio ^ eluassaungeii liat by said Innenum-: 5mg introduce the JCleiuiöalioibe nit and the Verriegelungnuten the combination of v / slle and occur in Buchae Singriff , whereby ttio with "ev / inde provided Kleiameini'icht" with ti em rait thread on the combination of ■ ffelle and Buohöe aov / ohl as well as the approaches on the front surface of the Klenmecieibe come into engagement.