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公开(公告)号：EP0067649A2
公开(公告)日：1982-12-22
申请号：EP82302950.9
申请日：1982-06-08
发明人： Neki, Shigeo , Shinozaki, Nozomu , Dohi, Takashi
CPC分类号： H02P29/0016 , Y10S388/912
摘要： A sewing machine comprises a pedal position detector (50) for detecting the position of a manually operated foot pedal (51) and generating therefrom a pedal position indicating signal. A predetermined position of the armshaft of the sewing machine is detected for generating an armshaft position signal. A soft-start speed setting circuit (53, 55, 60) is provided for successively generating a soft-start speed setting signal of an increasing value as a function of time in response to the occurrence of the armshaft position signal. The soft-start speed setting signal is enabled by a circuit (59) when it is smaller in magnitude than the pedal position indicating signal and conversely the pedal position indicating signal is enabled when the latter is smaller than the soft-start speed setting signal. The enabled signal is used to control the speed of the sewing machine.
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公开(公告)号：EP0055075A2
公开(公告)日：1982-06-30
申请号：EP81305909.4
申请日：1981-12-16
发明人： Shinozaki, Nozomu , Dohi, Takashi , Neki, Shigeo
IPC分类号： D05B69/22
CPC分类号： D05B69/24
摘要： A needle position detector for a sewing machine includes a pair of disk-like members (15, 15A, 20, 16, 16A, 21) axially mounted on a rotary shaft (1) coupled to the armshaft of the sewing machine. Each of the disk-like members is provided with an optically nonreflective portion (20, 21) occupying a greater area of its circumference and an optically reflective portion (15A, 16A) occupying a smaller area of the circumference. The disk-like members are adjusted so that the angular positions of the respective light reflective portions correspond to the upper and lower needle positions. A light emitting element (17A, 18A) is associated with each of the disk-like members to emit light in a radial direction thereto. A light sensitive element (17B, 18B) is also associated with each disk-like member to receive light reflected from the reflective portion of the associated disk-like member to generate a needle position signal.
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公开(公告)号：EP0028138A1
公开(公告)日：1981-05-06
申请号：EP80303767.0
申请日：1980-10-23
发明人： Neki, Shigeo , Shinozaki, Nozomu , Dohi, Takashi
CPC分类号： H02P29/0016 , G01D5/34792 , H02P23/22 , Y10S388/912 , Y10S388/921
摘要： A digital speed control system for a sewing machine comprises a digital speed setting device (5) which responds to manual depression of a foot pedal by generating a digital position signal. A variable frequency divider (4) divides the frequency of speed related pulses so that its output frequency is an integral submultiple of the input frequency, which is variable as a function of the digital position signal. A period detector (6) senses the interval between pulses that occur successively at the output of the frequency divider and generates a binary data representing the sensed interval. The interval representing data is translated into a second period data in an arithmetic unit (8) according to a predetermined transfer function. A pulse generator (9) translates the second period data into a pulse for activating a magnetic clutch (11 a) or a magnetic brake (11b) depending on a sign of the second period data to accelerate or decelerate the sewing machine (1).
摘要翻译： 一种用于缝纫机的数字速度控制系统包括数字速度设定装置（5），其响应于通过产生数字位置信号来手动踩下脚踏板。 可变分频器（4）对速度相关脉冲的频率进行分频，使其输出频率为输入频率的整数分之一，该输入频率随数字位置信号而变化。 周期检测器（6）检测在分频器的输出处连续出现的脉冲之间的间隔，并产生表示感测到的间隔的二进制数据。 根据预定的传递函数，代表数据的间隔在算术单元（8）中被转换为第二时段数据。 脉冲发生器（9）根据第二周期数据的符号将第二周期数据转换成用于激活磁性离合器（11a）或磁性制动器（11b）的脉冲以加速或减速缝纫机（1）。
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14.发明授权Sewing machine with reference speed correction by dimensional ratio between motor- and armshaft-pulleys 失效缝纫机具有电机和磨刀机之间的尺寸比例参考速度校正
公开(公告)号：EP0201902B1
公开(公告)日：1990-01-31
申请号：EP86106430.1
申请日：1986-05-12
发明人： Neki, Shigeo , Ohara, Kenichi , Shibata, Nobuho , Dohi, Takashi
IPC分类号： G05B19/405
CPC分类号： G05B19/416 , G05B2219/41358
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公开(公告)号：EP0067649B1
公开(公告)日：1987-03-04
申请号：EP82302950.9
申请日：1982-06-08
发明人： Neki, Shigeo , Shinozaki, Nozomu , Dohi, Takashi
CPC分类号： H02P29/0016 , Y10S388/912
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公开(公告)号：EP0045484B1
公开(公告)日：1985-02-20
申请号：EP81105973.2
申请日：1981-07-29
发明人： Shinozaki, Nozomu , Neki, Shigeo , Dohi, Takashi
IPC分类号： D05B69/22
CPC分类号： D05B69/26
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公开(公告)号：EP0053938B1
公开(公告)日：1984-07-04
申请号：EP81305773.4
申请日：1981-12-07
发明人： Neki, Shigeo , Shinozaki, Nozomu , Dohi, Takeshi
IPC分类号： D05B69/18
CPC分类号： D05B69/18 , Y10S388/934
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公开(公告)号：EP0068667A1
公开(公告)日：1983-01-05
申请号：EP82302923.6
申请日：1982-06-07
IPC分类号： D05B69/18
CPC分类号： D05B69/18
摘要： Disclosed is a speed setting device for an industrial sewing machine. The device comprises a lever (5) pivotally mounted at one end thereof on a stationary wall (3) and adapted to be pivotally moved in response to the foot pedal of the sewing machine. An arm (13) is pivotally mounted at one end to the stationary wall and operatively engaged with the lever so that they rotate in unison about their respective pivot points. The pivot point (21) of the second member is located intermediate the pivot point (11) of the lever and the point (12) of engagement between the lever and the arm. With this arrangement, the arm (13) is rotated through an angle greater than the angle through which the lever is rotated in response to the angular displacement of the foot pedal. An angular displacement sensor (14, 15) detects the angular displacement of the arm to generate a speed setting signal.
摘要翻译： 公开了一种用于工业缝纫机的速度设定装置。 该装置包括一个杠杆（5），该杆（5）的一端枢转地安装在固定壁（3）上，并且适于响应于缝纫机的脚踏板而枢转地移动。 臂（13）在一端可枢转地安装到固定壁上，与所述杠杆可操作地接合，使得它们围绕它们各自的枢转点一致地旋转。 第二构件的枢转点（21）位于杠杆的枢转点（11）的中间和杠杆和臂之间的接合点（12）之间。 利用这种布置，臂（13）旋转大于响应于脚踏板的角位移而使杆旋转的角度。 角位移传感器（14,15）检测臂的角位移以产生速度设定信号。
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19.发明公开Solenoid clutch motor having axially adjustable elements 失效Axial einstellbare Elemente aufweisender Motor mit Solenoidkupplung。
公开(公告)号：EP0067662A1
公开(公告)日：1982-12-22
申请号：EP82302990.5
申请日：1982-06-09
发明人： Dohi, Takashi , Shinozaki, Nozomu , Neki, Shigeo
CPC分类号： H02K7/1125 , F16D67/06 , F16D2121/20
摘要： A solenoid clutch motor includes a rotor shaft (28), a flywheel (26) secured thereto, an output shaft (29), first and second cores (21a, 22a), and clutch and brake coils (21, 22) mounted in the first and second cores (21a, 22a) respectively. A rotary member (37) having a pair of axially spaced apart oppositely facing first and second surfaces (52, 53) is mounted on the output shaft. A clutch disc (27) is axially but not rotatably slidably secured to the flywheel and axially spaced from the first core for engaging with the first surface (52) of the rotary member in response to energization of the clutch coil. An axially slidable but not rotatable brake disc (23) is provided in an axially spaced location from the second core (22a) for engaging with the second surface (53) of the rotary member in response to energization of the brake coil (22). Means (41, 43; 39, 45) is provided for axially adjusting the position of either one of the rotary member (37) and the first core (21).
摘要翻译： 电磁离合器电动机包括转子轴（28），固定在其上的飞轮（26），输出轴（29），第一和第二磁芯（21a，22a），以及安装在所述电机中的离合器和制动线圈 第一和第二芯（21a，22a）。 具有一对轴向间隔开的相对面对的第一和第二表面（52,53）的旋转构件（37）安装在输出端上。 离合器盘（27）轴向但不可旋转地滑动地固定到飞轮并且与第一芯轴向间隔开，以响应于离合器线圈的通电而与旋转构件的第一表面（52）接合。 轴向可滑动但不可旋转的制动盘（23）设置在与第二芯（22a）轴向间隔的位置，用于响应于制动线圈（22）的通电而与旋转构件的第二表面（53）接合。 提供装置（41,43; 39,45）用于轴向调节旋转构件（37）和第一芯体（21）中的任一个的位置。
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公开(公告)号：EP0045649A3
公开(公告)日：1982-07-07
申请号：EP81303532
申请日：1981-07-31
发明人： Shinozaki, Nozomu , Neki, Shigeo , Dohi, Takashi
IPC分类号： D05B69/00 , G01P03/488
摘要： A speed detector comprises a rotary shaft (1) for rotation' with a sewing machine, a ring-shaped permanent magnet (9) uniformly magnetized in a direction parallel to the axis of the rotary shaft, at least one ring-shaped, internally toothed ferromagnetic member or stator (5) and an externally toothed ferromagnetic circular member or rotor (6) which is secured to the rotary shaft inside the stator to form a varying air gap between the opposing teeth. The permanent magnet and the two ferromagnetic members are disposed to form a closed loop magnetic circuit in which a ring-shaped coil (10) is disposed. The air gap and hence the reluctance of the magnetic circuit changes periodically with the revolution of the rotary shaft so that a voltage is generated in the coil which varies at a frequency proportional to the operational speed of the sewing machine.
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