EP0204219B1 - Machine à coudre à points invisibles - Google Patents

Machine à coudre à points invisibles Download PDF

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Publication number
EP0204219B1
EP0204219B1 EP86106953A EP86106953A EP0204219B1 EP 0204219 B1 EP0204219 B1 EP 0204219B1 EP 86106953 A EP86106953 A EP 86106953A EP 86106953 A EP86106953 A EP 86106953A EP 0204219 B1 EP0204219 B1 EP 0204219B1
Authority
EP
European Patent Office
Prior art keywords
sewing
fabric
control circuit
stitch
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86106953A
Other languages
German (de)
English (en)
Other versions
EP0204219A1 (fr
Inventor
Georg Hauser
Rolf Höggenstaller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
J Strobel & Sohne & Co GmbH
J Strobel and Sohne GmbH and Co
Original Assignee
J Strobel & Sohne & Co GmbH
J Strobel and Sohne GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by J Strobel & Sohne & Co GmbH, J Strobel and Sohne GmbH and Co filed Critical J Strobel & Sohne & Co GmbH
Priority to AT86106953T priority Critical patent/ATE37570T1/de
Publication of EP0204219A1 publication Critical patent/EP0204219A1/fr
Application granted granted Critical
Publication of EP0204219B1 publication Critical patent/EP0204219B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/24—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making blind-stitch seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B85/00—Needles
    • D05B85/06—Curved needles
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2205/00—Interface between the operator and the machine
    • D05D2205/02—Operator to the machine
    • D05D2205/08—Buttons, e.g. for pattern selection; Keyboards
    • D05D2205/085—Buttons, e.g. for pattern selection; Keyboards combined with a display arrangement, e.g. touch sensitive control panel

Definitions

  • the invention relates to a blind stitch sewing machine of the type specified in the preamble of claim 1.
  • Such chainstitch blind stitch sewing machines for point-wise sewing of the material to be sewn by means of a predetermined number of stitches which form a so-called point bar are known (DE-A 21 20 558).
  • the adjustable stop for the swivel shaft for actuating the fabric flexor is formed by a screw which can be screwed by hand in the forearm of the blind stitch sewing machine by means of an outer rotary knob in order to adjust the distance of the fabric flexor in the sewing position from the path of movement of the curved needle so that The desired depth of penetration of the curved needle into the sewing material to be sewn results, which depends not only on the sewing position of the fabric flexor or its distance then present on the path of movement of the curved needle, but also on the sewing material, in particular the number and / or the thickness of each sewing layers of sewing material, and with the same sewing position of the fabric flexor is different for different sewing material.
  • blind stitch sewing machines for sewing the sewing material along a seam with automatic adjustment of the penetration depth of the curved needle into the stepwise transported sewing material according to the respective thickness of the sewing material at the sewing point by means of a sewing material scanner which is arranged in the area of the sewing point and is connected to the oscillating driven fabric flexor, around the same
  • a sewing material scanner which is arranged in the area of the sewing point and is connected to the oscillating driven fabric flexor, around the same
  • blindstitch sewing machine to provide a slide which is adjustable to the distance between the sewing material scanner and the throat plate and thus the shortest distance up to which the fabric flexor can approach the path of movement of the bow needle during each interval between Chen to enlarge two consecutive deeper stitches and to achieve a correspondingly smaller penetration depth of the bow needle.
  • the slide can be driven by means of an electric rotary magnet, which is controlled by an electric control circuit depending on the rotation of the
  • the invention has for its object to provide a blind stitch sewing machine of the type specified in the preamble of claim 1, in which the operating personnel can set the penetration depth of the curved needle more easily, quickly and precisely, so that work is facilitated, dead times are shortened and a better sewing result is achieved.
  • the general state of the art includes electric stepper motors, which are used for many purposes, whereby a gear can be connected downstream and worked with feedback (brochure «phytron •, 1970). It is also known to use microprocessors in electrical control circuits, including those for sewing machines, and to provide acoustic signal transmitters in sewing machines (“DNZ”, No. 9/1980, page 32). Also known are opto-electrical pulse generators for sewing machine drives, which have light emitters and receivers and a cover plate for the light beams between the emitters and the receivers (DE-C 28 48 612).
  • the prior art also includes electronically controlled sewing machines in which various stitch patterns can be selected, which are then carried out automatically.
  • the needle bar is displaced accordingly and the movement of the fabric slide is changed accordingly, which is done in each case by means of an associated actuator which is connected to an electrical control circuit.
  • the latter has a read-only memory (ROM) in which the information for the stitch patterns is stored, which can be called up using a keyboard (DE-B 24 30 845).
  • ROM read-only memory
  • RAM read / write memory
  • a sewing machine in which the data essential for the respective sewing process can be entered in order to bring about displays which indicate the respectively required equipment and the respectively required settings, and it is also provided that at least some of these settings are carried out automatically, specifically by means of an electric stepper motor, which can be followed by a reduction gear.
  • the various possible settings of the respective adjustable organ of the sewing machine are stored in a programmable memory, from which they can be called up, for example, by means of a keyboard, in order to adjust the organ accordingly by means of the electric stepping motor, a certain zero position being assumed, which is assumed by means of a Position sensor is determined and from which the electric stepper motor turns out by such a number of steps, how the respective retrieved setting corresponds.
  • a feedback system can be provided which causes an optical display when the organ has reached the specified setting.
  • the known sewing machine is not a blind stitch sewing machine. There is no fabric flexor, nor is there any adjustment mechanism for the same with adjustable elements to ensure a certain distance of the fabric flexor in the sewing position from the path of movement of the curved needle (DE-A 30 18886).
  • the invention can be implemented both in those blind stitch sewing machines in which the fabric flexor on the fixed forearm can be moved back and forth between the sewing position and the material release position, as well as in those in which the fabric flexor is pivoted between the sewing position and the material release position by pivoting the forearm of the blind stitch sewing machine can be moved back and forth and the adjustable stop does not interact with a swivel shaft for actuating the fabric flexor, but with a swivel shaft for actuating the forearm or with the forearm itself.
  • the invention can also be implemented in blind stitch sewing machines with two juxtaposed arms, each of which carries the curved needle and the gripper interacting therewith or the fabric flexor.
  • a chain stitch blind stitch sewing machine for sewing the sewing material point by point using a predetermined number of stitches, which form a so-called point bartack.
  • the blind stitch sewing machine has a needle plate 1, a curved needle 2, a gripper 3, a presser 4 and a presser 5, furthermore a housing 6, which forms an upper arm 7, a stand 8 and a lower arm 9.
  • the needle plate 1 extends horizontally on the upper arm 7, which is further provided with a needle lever 11, which bears about an axis 10 parallel to the needle plate 1 and carries the curved needle 2, and the gripper 3, which is rotatably mounted about an axis 12.
  • a main shaft 13 rotatably mounted in the upper arm 7 with a handwheel 14 and a pulley 15 is used for the synchronous drive of the needle lever 11 and the gripper 3.
  • the main shaft 13 is wrapped by an endless V-belt 17 together with a second pulley 16.
  • the second pulley 16 is rotatable by means of an electric drive motor which is accommodated in a housing box 18 which is fastened to the underside of a table top 19 which supports the housing 6.
  • the fabric flexor 5 can be adjusted together with the fabric presser 4 perpendicular to the throat plate 1 from the effective position when sewing according to FIG. 1 into an inactive position for material release and vice versa and has a shaft 20 which is axially displaceably mounted in the forearm 9 and which one The presser 4 is displaceable between an adjusting ring 21 fastened on the shaft 20 and an outer annular shoulder 22 of the shaft 20. Between the presser 4 and the adjusting ring 21, a helical compression spring 23 is clamped, which presses the presser 4 in the sewing position according to FIG. 1 against the needle plate 1 and in the sewing material release position against the annular shoulder 22 of the shaft 20.
  • a pivot shaft 24 rotatably mounted in the forearm 9 is used, which is connected via a cardan shaft 25 to an electric rotary magnet 26 and has a radial arm 27, at the free end of which the adjacent free end of the shaft 20 is articulated by means of a connecting strap 28.
  • the electric rotary magnet 26 is first excited in order to adjust the presser 4 and the presser 5 into the sewing position in which the presser 4 presses the material against the side of the needle plate 1 facing away from the curved needle 2 and the gripper 3 and the presser 5 the The material bulges through an opening 34 in the needle plate 1 into the path of movement of the bow needle 2. Then the electric drive motor of the main shaft 13 is switched on in order to set the curved needle 2 and the gripper 3 in motion.
  • the bow needle 2 attached to the free end of the needle lever 11 swings with each swing cycle Klus of the needle lever 11 parallel to the plane of FIG. 1 back and forth along a circular arc, concentric to the needle lifting pivot axis 10, namely towards the gripper 3 and then away from it, which rotates in synchronism with the curved needle vibrations about the axis 11 to im Interaction with the bow needle 2 to devour the sewing thread running through its eyelet like a chain stitch.
  • the curved needle 2 swings laterally, alternately at two points parallel to the needle lever pivot axis 10 at a distance from one another to pierce the bulging material by the fabric flexor 5, for which purpose the needle lever 11 is adjusted accordingly by means of a suitable mechanism which is driven by the main shaft 13.
  • the electric drive motor of the main shaft 13 is first switched off, around the curved needle 2 and to stop the gripper 3 in such a way that the curved needle 2 remains in the position withdrawn from the material to be sewn.
  • the sewing thread is then drawn up and cut off, specifically by means of a lever or a knife, which are actuated by means of an electrical rotary magnet each, which is controlled by the electrical control circuit in the housing box 18.
  • the distance between the fabric flexor 5 in the sewing position and the circular arc-shaped movement path of the curved needle 2, which defines its penetration depth into the sewing material to be sewn, is determined by a stop 40 for the swivel shaft 24, which limits its pivoting when the electric rotary magnet 26 is excited.
  • the stop 40 can be adjusted to adjust the penetration depth of the curved needle 2 in accordance with the sewing material to be sewn in each case, in particular the number and / or the thickness of the sewing material layers to be sewn, by means of a stepping drive 41 with an electrical control circuit 42 which is connected to a penetration depth selector 43 and an analog insertion depth indicator 44 and a digital insertion depth indicator 45 are connected.
  • the stop 40 interacts with a second radial arm 46 of the pivot shaft 24 and is designed as a rotatable cam disk 47, the spiral shape of which forms a stop surface 48 for the arm 46, as can be seen particularly clearly from FIG. 4.
  • the cam disk 47 is fastened on a shaft 49 which extends parallel to the swivel shaft 24 in the forearm 9, is rotatably mounted in a U-shaped carrier 50 fastened thereon and is connected at one end to the stepper drive 41 .
  • the latter is fastened to an arm 51 attached to the carrier 50 and consists of an electric stepping motor 52 and a reduction gear 53 connected downstream thereof, on the output shaft 54 of which the shaft 49 is fastened.
  • the cam disk 47 can be rotated back and forth by means of the stepper drive 41 between the two rotational positions shown in solid or dashed lines in FIG. 4, each of which shows the highest or lowest sewing position of the fabric flexor 5 shown in solid or dashed lines in FIG.
  • the cam disc has 47 at an angle a of 309 0 in the counterclockwise direction or in the Turn clockwise, to which 1000 steps of the step drive 41 are assigned.
  • the cam disk 47 can thus be rotated step by step within the rotation range illustrated in FIG. 4 by an angle of 0.309 ° in each case, namely counterclockwise or clockwise, depending on the direction of rotation of the step drive 41.
  • the cam disk 47 is rotated into a corresponding rotational position, specifically Starting from a middle rotational position between the two rotational positions illustrated in FIG.
  • the middle rotational position of the cam disk 47 is determined by means of an optical position transmitter 56, which according to FIG. 2 comprises an optical sensor 57 arranged in the forearm 9 with a light transmitter and a light receiver and a cover disk 58 provided on the shaft 49 of the cam disk 47 for interrupting the light beam 59 exists between the light transmitter and the light receiver of the optical sensor 57.
  • an optical position transmitter 56 which according to FIG. 2 comprises an optical sensor 57 arranged in the forearm 9 with a light transmitter and a light receiver and a cover disk 58 provided on the shaft 49 of the cam disk 47 for interrupting the light beam 59 exists between the light transmitter and the light receiver of the optical sensor 57.
  • the semicircular cover disk 58 in each case takes the rotary position shown in FIG. 5 with solid lines or dashed lines with respect to the optical sensor 57 and its light beam 59.
  • the cover disk 58 also rotates from the rotary position shown in solid lines in FIG. 5 5 by the angle ⁇ of 309 °, indicated by dashed lines in FIG. 5, whereby after the first half of this rotary movement it interrupts the light beam 59 of the optical sensor 57, so that its electrical output signal changes from a value corresponding to one changes logical «1 to a value corresponding to a logical « 0 .
  • the output signal of the optical sensor 57 is applied to the electrical control circuit 42, that is to say in all of the rotary divisions of the cover disk 58, in which the radial control edge 60 in FIG. 5 is to the right of the light beam 59 of the optical sensor 57 and the cam disk 47 is in a rotational position between 4 and the middle rotational position shown in solid lines, the output signal "1" and in all rotational positions of the cover disk 58, in which the radial control edge 60 of FIG. 5 is to the left of the light beam 59 of the optical sensor 57 and the cam disk 47 assumes a rotational position between the rotational position indicated by broken lines in FIG. 4 and the middle rotational position, receives the output signal “0.
  • the electrical control circuit 42 is accommodated in a housing box 61 with a front plate 62, on which the insertion depth selector 43, the analog insertion depth indicator 44 and the digital insertion depth indicator 45 are provided, as can be seen particularly clearly from FIG. 6.
  • the puncture depth selector 43 consists of eight buttons 63, each of which is assigned a certain distance of the fabric flexor 5 in the sewing position from the path of movement of the bow needle 2, which is stored in the electrical control circuit 42 and can be called up by actuating the relevant button 63 in order to provide the stepping drive 41 or its electric stepper motor 52 with a corresponding switch-on signal.
  • the analog insertion depth indicator 44 and the digital insertion depth indicator 45 indicate the respectively called up distance and a light-emitting diode 64 assigned to the actuated key 63 lights up in order to indicate the actuation of the key.
  • the eight LEDs 64 for the buttons 63 are connected to the electrical control circuit 42 and arranged on the front plate 62 of the housing box 61 in a row each above the associated button 63, which is movably arranged on the housing 6 of the blind stitch sewing machine, so that the operating personnel remove the housing box 61 in the most favorable position for the actuation of the keys 63 and three further keys 65, 66 and 67 on the front plate 62 and the observation of the analog insertion depth indicator 44, the digital insertion depth indicator 45 and the light-emitting diodes 64 on the front plate 62.
  • the analog puncture depth indicator 44 has a light-emitting diode line 68 which lights up in the direction of arrow 69 according to FIG. 6, the greater the distance between the fabric flexor 5 in the sewing position and the path of the curved needle 2 that is called up from the electrical control circuit 42.
  • the digital penetration depth indicator 45 has 21 light-emitting diodes 70 for the seven-segment display of each digit of a three-digit decimal number and can therefore display all decimal numbers from 0 to 999. The displayed decimal number is greater, the greater the distance between the fabric flexor 5 in the sewing position and the path of movement of the curved needle 2 that is called up from the electrical control circuit 42.
  • the distances, stored in the electrical control circuit 42, of the fabric flexor 5 in the sewing position from the path of movement of the bow needle 2 can each be changed, with the aid of the further buttons 65 to 67 on the front plate 62 of the housing box 61.
  • the relevant button 63 actuated, the associated light-emitting diode 64 lights up, likewise the light-emitting diode line 68 of the analog insertion depth indicator 44 is of the appropriate length and the light-emitting diodes 70 of the digital insertion depth indicator 45 in order to display the corresponding decimal number.
  • the Key 65 or key 66 reduces or increases the stored distance, the displays of the analog insertion depth indicator 44 and the digital insertion depth indicator 45 changing accordingly.
  • the button 67 is then actuated in order to finally save the new distance of the fabric flexor 5 in the sewing position from the path of movement of the bow needle 2 for the actuated button 63 in the electrical control circuit 42.
  • the electrical control circuit 42 operates digitally and, according to FIG. 7, has a read / write memory 71, a microprocessor 72, a program memory 73, a child center module 74 and an address decoder 75.
  • the read / write memory 71 serves to record the eight different distances of the fabric flexor 5 in the sewing position from the path of movement of the curved needle 2, which are assigned to the eight buttons 63 of the puncture depth selector 43.
  • the microprocessor 72 controls the processes in the electrical control circuit 42 in time with a clock generator in accordance with the program contained in the program memory 73.
  • the interface module 74 links the step drive 41 or two decoding and driver units 76 for its electric stepper motor 52, the insertion depth selector 43 or its keys 63 and the further three keys 65, 66 and 67, the analog insertion depth indicator 44 or a shift register 77 for whose LED line 68, the digital penetration depth indicator 45 or a shift register 78 for its LEDs 70, the optical position transmitter 56 or its optical sensor 57, the LEDs 64 or a shift register 79 for the same, a monitoring device 80 for the fabric flexor 5 and an associated one Acoustic warning device 81 or a driver 82 for the same with the other components of the electrical control circuit 42.
  • the read / write memory 71, the microprocessor 72, the program memory 73 and the interface module 74 are connected to a data bus D and an address bus A, as shown in FIG. 7.
  • the address decoder 75 is only connected to the address bus A and can be acted upon by an activation signal via a line 83 from the microprocessor 72 in order to deliver chip select signals to the read / write memory 71, the program memory 73 and the interface module 74 via lines 84.
  • the read / write memory 71 and the interface module 74 can also be supplied with read and write signals by the microprocessor 72 via a line 85. In the event of a fault, the interface module 74 sends a corresponding signal to the microprocessor 72 via a line 86.
  • the microprocessor 72, the interface module 74 and the three shift registers 77, 78 and 79 are acted upon and reset via a line 87 with a reset signal.
  • the three shift registers 78, 79 and 77 of the digital insertion depth indicator 45 and the light emitting diodes 64 of the keys 63 of the insertion depth selector 43 and the analog insertion depth indicator 44 are acted upon serially by the interface module 74 via a line 88, the driver 82 the acoustic warning device 81 and the two decoding and driver units 76 of the electric stepping motor 52 of the stepping drive 41, in contrast, in parallel via a line 89 or two lines 90.
  • Optical sensor 57 of the optical position transmitter 56 and the monitoring device 80 for the fabric flexor 5 act on the interface module 74 in parallel via a line 91 or 92 or 93.
  • the stepper drive 41 or its electric stepper motor 52 is started to rotate the cam disk 47, then the second arm 46 of the pivot shaft 24 should not rest against the stop surface 48 of the cam disk 47 so that the rotation of the cam disk 47 is not hindered and can be done as accurately as possible.
  • the monitoring device 80 for the fabric flexor 5 then sends a signal to the interface module 74 via the line 93 when the fabric flexor 5 is in the sewing position, that is to say the arm 46 rests on the stop surface 48 and the electric rotary magnet 26 is excited.
  • the monitoring device 80 can therefore also be designed and arranged to monitor the excitation of the electrical rotary magnet 26 in order to apply an appropriate signal to the interface module 74 via the line 93 as long as the electrical rotary magnet 26 is excited.
  • the interface module 74 supplies a signal to the driver 82 via the line 89, so that the acoustic warning device 81 emits an alarm signal.
  • provision can be made for the digital penetration depth indicator 45 to flash in this state.
  • the operating personnel In order to set a specific insertion depth of the curved needle 2 into the sewing material to be sewn, the operating personnel only need to press the button 63 of the insertion depth selector 43 on the front plate 62 of the housing box 61 of the device for selecting and displaying the insertion depth according to FIG. 6, which is the corresponding distance of the fabric flexor 5 is assigned to the path of movement of the bow needle 2 when it has been moved into the sewing position by the electrical rotary magnet 26, the LED 64 assigned to the button 63 lighting up. Then the memory content assigned to the key 63 is called up from the read / write memory 71 of the electrical control circuit 42 for the insertion depth selection, setting and display according to FIG.
  • stepper drive 41 first rotates the cam disk 47 step by step in the middle rotational position in the shortest possible way, since it is set in motion by the electrical control circuit 42 by a corresponding switch-on signal in the relevant direction, which "knows whether the cam disk 47 is currently on the one or is on the other side of its middle rotational position because the electrical control circuit 42 is then acted upon by the optical position transmitter 56 with the output signal “1 or“ 0.
  • the stepper drive 41 rotates the cam disk 47 from the central rotational position in accordance with the switch-on signal received from the electrical control circuit 42 in that direction of rotation by the number of steps as specified by the memory content called up, so that the cam disk 47 reaches the rotational position corresponding to the memory content in the shortest possible way .
  • the fabric flexor 5 can only approach the arcuate movement path of the arc needle 2 to such a distance as corresponds to the set rotary position of the cam disk 47, since the movement of the fabric flexor 5 is only possible until the radial arm 46 of the pivot shaft 24 abuts the spiral stop surface 48 of the cam disk 47.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (7)

1. Machine à coudre à points invisibles dont le plongeur (5) peut se déplacer entre une position de couture, dans laquelle il pousse l'ouvrage à coudre pour former une bosse placée sur la trajectoire en arc de cercle de l'aiguille courbe (2), et une position de libération de l'ouvrage qui permet de mettre l'ouvrage en place et de le retirer, au moyen d'un arbre oscillant (24) qui coopère avec une butée (40) servant à définir la position de couture du plongeur (5), butée qui peut elle-même être déplacée pour le réglage de la profondeur d'enfoncement de l'aiguille courbe (2) dans l'ouvrage à coudre, pour garantir que le plongeur (5) placé dans la position de couture sera situé à une distance appropriée de la trajectoire de l'aiguille courbe (2), caractérisée en ce que la butée réglable (40) est constituée par une came (47) que l'on peut faire tourner, au moyen d'un moteur électrique pas-à-pas (52) connecté à un circuit de commande électrique (42) comportant lui-même une mémoire (71) pouvant mémoriser plusieurs distances différentes entre le plongeur (5) placé dans sa position de couture et la trajectoire de l'aiguille courbe (2), en fonction de la distance qui a été appelée dans la mémoire (71) lorsqu'on a actionné un sélecteur manuel de profondeur d'enfoncement (43) connecté au circuit de commande électrique (42).
2. Machine à coudre à points invisibles selon la revendication 1, caractérisée en ce que la came (47) est prévue sur un arbre (49) parallèle à l'arbre oscillant (24) et présente une périphérie spiraloïde qui forme une surface de butée (48) pour un bras radial (46) de l'arbre oscillant (24).
3. Machine à coudre à points invisibles selon la revendication 1 ou 2, caractérisée en ce que, à chaque modification de la distance entre le plongeur (5) placé dans la position de couture et la trajectoire de l'aiguille courbe (2), la came (47) est tournée au moyen du moteur électrique pas-à-pas (52) tout d'abord dans une position située au centre de son intervalle de rotation total et, ensuite, dans l'un sens ou dans l'autre, à partir de cette position centrale, dans la nouvelle position, un capteur de position (56) étant prévu pour transmettre un premier signal de sortie ou un deuxième signal de sortie au circuit de commande électrique (42) lorsque la came (47) tourne dans l'un sens ou dans l'autre en partant de sa position centrale.
4. Machine à coudre à points invisibles selon la revendication 1, 2 ou 3, caractérisée par un afficheur de profondeur d'enfoncement analogique et/ou un afficheur de profondeur d'enfoncement numérique (44 ou 45 respectivement) qui sont connectés au circuit de commande électrique (42) et comprennent l'un une ligne de diodes électroluminescentes (68) et l'autre des diodes électroluminescentes (70) servant à donner un affichage multisegments des chiffres d'un nombre décimal.
5. Machine à coudre à points invisibles selon une des revendications précédentes, caractérisée en ce que le sélecteur de profondeur d'enfoncement (43) est composé de plusieurs touches (63) à chacune desquelles correspond une distance donnée entre le plongeur (5) placé dans la position de couture et la trajectoire de l'aiguille courbe (2).
6. Machine à coudre à points invisibles selon la revendication 5, en combinaison avec la revendication 4, caractérisée en ce que les touches (63) peuvent être actionnées pour faire varier la distance correspondante, mémorisée dans la mémoire (71), entre le plongeur (5) placé dans la position de couture et la trajectoire de l'aiguille courbe (2) et qu'il est prévu trois autres touches (65, 66, 67) qui sont connectées au circuit de commande électrique (42) et peuvent être actionnées respectivement pour réduire la distance ou agrandir la distance, avec modification correspondante de l'indication de l'afficheur de profondeur d'enfoncement analogique ou numérique (44 ou 45 respectivement), et pour entrer la nouvelle distance dans la mémoire (71
EP86106953A 1985-06-03 1986-05-23 Machine à coudre à points invisibles Expired EP0204219B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106953T ATE37570T1 (de) 1985-06-03 1986-05-23 Blindstichnaehmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3519849A DE3519849C1 (de) 1985-06-03 1985-06-03 Blindstichnaehmaschine
DE3519849 1985-06-03

Publications (2)

Publication Number Publication Date
EP0204219A1 EP0204219A1 (fr) 1986-12-10
EP0204219B1 true EP0204219B1 (fr) 1988-09-28

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EP86106953A Expired EP0204219B1 (fr) 1985-06-03 1986-05-23 Machine à coudre à points invisibles

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Country Link
US (1) US4718365A (fr)
EP (1) EP0204219B1 (fr)
JP (1) JPS6221853A (fr)
AT (1) ATE37570T1 (fr)
DE (1) DE3519849C1 (fr)

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DE3819017C1 (fr) * 1988-06-03 1989-04-13 J. Strobel & Soehne - Gmbh & Co, 8000 Muenchen, De
JPH0783797B2 (ja) * 1989-01-20 1995-09-13 ブラザー工業株式会社 柄合わせミシン
JPH0349068U (fr) * 1989-09-06 1991-05-13
DE4015465C1 (fr) * 1990-05-14 1991-06-27 J. Strobel & Soehne - Gmbh & Co, 8000 Muenchen, De
IT232383Y1 (it) * 1994-04-28 1999-12-17 Rosso Ind Spa Rimagliatrice con convogliatore munito di mezzi per la regolazione facile dell'ampiezza della distanza tra i bordi affacciati delle

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DE2736780C2 (de) * 1977-08-16 1981-11-12 Maier-Unitas GmbH, 7316 Köngen Blindstichnähmaschine
DE2848612C2 (de) * 1978-11-09 1981-05-27 Pfaff Haushaltsmaschinen GmbH, 7500 Karlsruhe Impulsgeber eines Nähmaschinenantriebes
CH650040A5 (de) * 1979-06-06 1985-06-28 Gegauf Fritz Ag Einrichtung zur einfacheren einstellung und ausruestung einer naehmaschine.
DE2937733A1 (de) * 1979-09-18 1981-04-02 J. Strobel & Söhne - GmbH Co, 8000 München Blindstichnaehmaschine
JPS58138478A (ja) * 1982-02-12 1983-08-17 ヤマトミシン製造株式会社 掬縫ミシンの掬縫深度調節方法並びに其の装置

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EP0204219A1 (fr) 1986-12-10
DE3519849C1 (de) 1986-10-30
JPS6221853A (ja) 1987-01-30
US4718365A (en) 1988-01-12
ATE37570T1 (de) 1988-10-15

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