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1. 发明专利

JP2000014955A BOBBIN THREAD WINDING DEVICE 失效
公开(公告)号：JP2000014955A
公开(公告)日：2000-01-18
申请号：JP18647798
申请日：1998-07-01
申请人： JUKI KK
发明人： SHINOZUKA HISANOBU , KATAYAMA KAZUNORI
IPC分类号： D05B59/00
摘要： PROBLEM TO BE SOLVED: To provide a bobbin thread winding device for winding a bobbin thread around a bobbin, capable of automatically adjusting the amount of bobbin thread extended from the thread extending part of a bobbin case after the bobbin thread has been cut, whereby the desired amount of thread extension can be obtained even if the kind of thread changes. SOLUTION: A bobbin thread winding device includes a bobbin rotation means for rotating a bobbin in a bobbin case, a bobbin thread feeding part for feeding the bobbin thread to the bobbin, a bobbin thread cutting means for cutting a bobbin thread extending from the bobbin thread extending part of the bobbin case to the bobbin thread feeding part. The bobbin thread cutting position of the bobbin thread cutting means is set in a position where the distance from the bobbin thread extending part as seen along a bobbin thread path extending from the bobbin thread extending part is longer than the desired amount of bobbin thread extension required after installation of a shuttle, and a control means is equipped for adjusting the length of the bobbin thread extended from the bobbin thread extending part, by performing adjustments whereby the bobbin is rotated by the bobbin rotation means in the direction to catch the bobbin thread after the bobbin thread is cut by the bobbin thread cutting means (step S5-S7).

2. 发明专利

JPH08191977A BOBBIN EXCHANGER 失效
公开(公告)号：JPH08191977A
公开(公告)日：1996-07-30
申请号：JP2352695
申请日：1995-01-18
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI
IPC分类号： D05B57/26 , D05B59/04
摘要： PURPOSE: To improve the reliability of the device by preventing any following fault from being generated by detecting one of the clamping defect and opening defect of a bobbin case clamping means at least. CONSTITUTION: The opening state of a lock lever 2a at a bobbin case 2 is detected by a detecting means 57 and when it is necessary to clamp the bobbin case 2 but the opening state of the lock lever 2a is not detected, based on a detecting signal from the detecting means 57, the clamping defect of a bobbin case clamping means 50 is decided by an error detecting means but when it is necessary to open the bobbin case 2 and the opening state of the lock lever 2a is detected, the opening defect of the bobbin case clamping means 50 is decided so that at least one of these defects can be detected. When these defects are detected, the device is stopped, for example, and these defects are reported to a worker by an error reporting means, for example, so that the intervention of the worker can be performed.

3. 发明专利

JPH0476312B2 失效
公开(公告)号：JPH0476312B2
公开(公告)日：1992-12-03
申请号：JP20040387
申请日：1987-08-11
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI
IPC分类号： B41J13/00 , B41J29/48

4. 发明专利

JPH01249481A PAPER JAMMING PREVENTIVE DEVICE FOR SERIAL PRINTER 失效
公开(公告)号：JPH01249481A
公开(公告)日：1989-10-04
申请号：JP7960988
申请日：1988-03-31
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI
IPC分类号： B41J13/10
摘要： PURPOSE:To prevent paper jamming from occurring, by moving a carriage to move a paper guide at least from one side edge to the other of a paper when a leading end part of the paper reaches a discharging-side roller. CONSTITUTION:When a leading end part P1 of a paper P reaches a driven roller on the discharging side, a CPU stops driving of rollers 3, 4 on the supplying side, and a driving controller moves a carriage 2 to a left end and then to a right end. As a result, a paper guide 11 is moved over the entire with of the paper P, so that a curled part, if any, of the leading end part P1 of the paper P fed from a printing part 1 is entirely pressed in to the lower side of a driven roller 6 on the discharging side by a lower surface (guide surface) 11a2 of a flat part of the paper guide 11 extended to the vicinity of the roller 6. Thereafter, by a feeding operation subsequent to a printing operation, the paper P is guided securely between both rollers 5, 6 on the discharging side, and is sequentially discharged without causing paper jamming.

5. 发明专利

JP2000308782A BOBBIN EXCHANGE APPARATUS 失效
公开(公告)号：JP2000308782A
公开(公告)日：2000-11-07
申请号：JP11979299
申请日：1999-04-27
申请人： JUKI KK
发明人： OKUBO KEN , SHINOZUKA HISANOBU , KATAYAMA KAZUNORI , MATSUYAMA TAKESHI
IPC分类号： D05B59/04
摘要： PROBLEM TO BE SOLVED: To enable a bobbin case to be exchanged by maintaining the bobbin case even if a lever and a regulating member incline each other owing to a play in the rotary direction of the bobbin case. SOLUTION: This bobbin exchange apparatus comprises a lever 202 which is mounted on a bobbin case 200 so as to be able to raise, a bobbin finger piece which is provided with regulating members 56, 58 forming the almost same space y as the width x of the lever and maintains the bobbin case by making the lever to be raised and then guiding it to a gap, a carrier part for carrying the bobbin finger piece. In this case, on at least either a part of the control members 56 and 58 facing to the bobbin case or the end of the lever, tapers 208 and 210 are formed, thereby the lever can be smoothly led into the gap of the regulating members 56, 58.

6. 发明专利

JP2000300884A BOBBIN EXCHANGING APPARATUS 失效
公开(公告)号：JP2000300884A
公开(公告)日：2000-10-31
申请号：JP11455999
申请日：1999-04-22
申请人： JUKI KK
发明人： SHINOZUKA HISANOBU , KATAYAMA KAZUNORI , OKUBO KEN , MATSUYAMA TAKESHI
IPC分类号： D05B59/04 , D05B63/00
摘要： PROBLEM TO BE SOLVED: To solve a malfunction wherein a seam is not formed by a fact that a thread end pulled off from a thread guiding part is not hung in the opposite direction to a rotating hook bobbin case holder in a bobbin exchanging apparatus. SOLUTION: In a bobbin exchanging apparatus provided with a means 16 for holding a bobbin case 14 and a carrying means for moving the holding means to a rotating hook bobbin case holder, a bobbin thread pulling-off part 46 provided in a bobbin case so as to pull off a bobbin thread T from a bobbin and a bobbin thread hooking member 122 on a moving path of the bobbin thread pulling-off part 46 by moving the bobbin case to the rotating hook bobbin case holder or in the neighborhood thereof are provided.

7. 发明专利

JP2000288280A THREAD LOOSENING DEVICE, AND DEVICE AND METHOD FOR BOBBIN THREAD WINDING 失效
公开(公告)号：JP2000288280A
公开(公告)日：2000-10-17
申请号：JP12631299
申请日：1999-05-06
申请人： JUKI KK
发明人： SHINOZUKA HISANOBU , KATAYAMA KAZUNORI , OKUBO KEN , MATSUYAMA TAKESHI
IPC分类号： D05B59/00 , D01H15/00
摘要： PROBLEM TO BE SOLVED: To enable the reliable entanglement of thread to a bobbin, which is the initial process of thread winding, by treating thread with at least one property among properties of strong cores, easily slidable surfaces, rigid surfaces, and little twisting or no twisting into a loosened state such as a single- fiber state, a state close to a single fiber, or a fluffed state in a short single fiber, etc. SOLUTION: The bobbin thread winding device 30 provided with both a thread holding means 36 to hold bobbin thread L from a bobbin thread supply source and a thread winding means 20 to wind the bobbin thread L held by the bobbin thread holding means 36 on a bobbin shaft is provided with the thread loosening device 160 to loosen the tip part of the bobbin thread L. The thread loosening device 160 is a rotary-type thread loosening mechanism with a pair of thread loosening members 161 and 162 to sandwich the tip part of the bobbin thread L, to rub and loose the twisting of the tip part of the bobbin thread L by rotation.

8. 发明专利

JPH09192375A BOBBIN THREAD TAKEUP DEVICE 失效
公开(公告)号：JPH09192375A
公开(公告)日：1997-07-29
申请号：JP2319396
申请日：1996-01-17
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI , MATSUYAMA TAKESHI , SHINOZUKA HISANOBU
IPC分类号： D05B59/04
摘要： PROBLEM TO BE SOLVED: To use an alignment takeup process for taking up a bobbin thread around a bobbin shaft to prevent a defective stitch from occurring. SOLUTION: A bobbin 7 driven to rotate and a thread guide means for feeding a bobbin thread 150 to a bobbin shaft 7a from a bobbin feed source are caused to relatively transfer at least, in a parallel direction with the bobbin shaft 7a by a mans for forming a takeup array. In addition, this means for forming a takeup array is controlled by a means for controlling the formation of a takeup array, so that the bobbin thread 15 is allowed to become securely entangled around almost the center of the bobbin shaft 7a by setting almost the center of the bobbin 7a at an opposite position to the bobbin thread feed part 67a of the thread guise means, when the bobbin thread is entangled around the bobbin shaft 7a. When the bobbin thread 150 is entangled around almost the center of the bobbin shaft 7a as described, the end part 7aa side of the bobbin shaft 7a is opposed to the bobbin thread feed part 67a. Further, the bobbin shaft 7a and the bobbin thread feed part 67a are structurally opposed to each other so that the bobbin thread 150 from the bobbin thread feed part 67a can be taken up in alignment to the bobbin shaft 7a.

9. 发明专利

JPH01145175A CONTINUOUS PAPER FEEDING MECHANISM 失效
公开(公告)号：JPH01145175A
公开(公告)日：1989-06-07
申请号：JP30372487
申请日：1987-11-30
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI
IPC分类号： B41J15/04 , B41J13/03
摘要： PURPOSE:To enable a thick paper to be feed without catching of a perforation or a fold part and enable a thin paper to be fed without breakage of feed perforations or the like, by adjusting a spring pressure by rotating an eccentric shaft of a spring pressure adjusting mechanism by a motor. CONSTITUTION:A paper thickness detector 32 for a paper 31 to be printed, an external switch 33 depressed in conjunction with the paper supplied, a driver 34 for a motor 28, a photo-sensor 29 and a ROM 35 are connected to a CPU 30. The thickness of the paper 31 is detected by the paper thickness detector 32 provided at a printing part, and is compared with a set value previously inputted into the ROM 35, whereas the rotation of a gear 25 is detected by the photo-sensor 29, whereby an adjustment is conducted so that the thickness coincides with the set value. By the rotation of the gear 25, an eccentric shaft 24 is rotated, and the pressure between drawing-in rollers 14a, 14b is adjusted by the position of the shaft 24 through a spring 21, after which printing is started.

10. 发明专利

JPS6487385A RIBBON SHIFTING CONTROL DEVICE FOR DOT PRINTER 失效
公开(公告)号：JPS6487385A
公开(公告)日：1989-03-31
申请号：JP24666887
申请日：1987-09-30
申请人： JUKI KK
发明人： KATAYAMA KAZUNORI
IPC分类号： B41J25/304 , B41J25/308 , B41J35/14
摘要： PURPOSE:To obtain proper printing quality by retracting a printing head from a predetermined printing position so as to allow an ink ribbon to be shifted smoothly and completely when actuating a ribbon-shifting mechanism for transversely shifting an ink ribbon. CONSTITUTION:When ribbon shifting data are fed into a CPU 17 from a host computer during the operation of a printer, the CPU 17 first cuts off driving circuits 21-24 to thereby stop a printing operation. The CPU 17 then actuates a stepping motor 20 so as to retract a printing head 17 and a paper guide 15 together with a carrier 5. This serves to widen the gap between the printing head 7 and a platen 14, and the travelling path of an ink ribbon IL is thereby widened. Thus, any risk of the ink ribbon IL being caught by the printing head 7 and a ribbon mask 16 can be eliminated, whereby a smooth shifting operation is attained.

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