公开(公告)号：US5284219A

公开(公告)日：1994-02-08

申请号：US826043

申请日：1992-01-27

申请人： Yasuo Shimizu ,  Toshitake Kawai ,  Junji Yuzuriha

发明人： Yasuo Shimizu ,  Toshitake Kawai ,  Junji Yuzuriha

IPC分类号： B62D1/16 ,  B62D3/08 ,  B62D5/22 ,  B62D6/02 ,  B62D9/00

CPC分类号： B62D1/166

摘要： A steering apparatus steers a steerable road wheel in response to turning movement of a steering wheel with a variable steering angle ratio therebetween. The steering apparatus includes a first member operatively coupled to either one of the steerable road wheel and the steering wheel, and a second member operatively coupled to the other of the steerable road wheel and the steering wheel. The first member has a portion engaging the second member at a variable engaging position that is movable on a predetermined path. The steering angle ratio varies when the engaging position varies. When the steering angle ratio varies with the first and second members in their respective neutral positions, the first and second members remain completely still, and their neutral positions are kept in alignment with each other.

摘要翻译： 转向装置响应于其间具有可变转向角比的方向盘的转动运动而引导可转向的车轮。 转向装置包括可操作地联接到可操纵的车轮和方向盘之一的第一构件以及可操作地联接到可转向的车轮和方向盘的另一个的第二构件。 第一构件具有在可在预定路径上移动的可变接合位置处接合第二构件的部分。 当接合位置变化时，转向角比变化。 当转向角比随着第一和第二构件在其各自的中立位置变化时，第一和第二构件保持完全静止，并且它们的中立位置保持彼此对齐。

公开(公告)号：US5267625A

公开(公告)日：1993-12-07

申请号：US968068

申请日：1992-10-30

申请人： Yasuo Shimizu

发明人： Yasuo Shimizu

IPC分类号： B62D1/16 ,  B62D3/08 ,  B62D5/04 ,  B62D5/087 ,  B62D6/02 ,  B62D9/00 ,  B62D6/00

CPC分类号： B62D1/166 ,  B62D5/0421 ,  B62D5/087

摘要： A steering apparatus has a sector shaft rotatable in response to rotation of a steering wheel for steering road wheels through a pitman arm coupled to the sector shaft. A torque sensor for detecting a steering torque applied to the steering wheel is positioned closer to the steering wheel than the sector shaft in a path of the steering torque from the steering wheel to the sector shaft. An electric motor is operatively coupled to the sector shaft for applying an assistive force to the sector shaft. The electric motor is controlled by a controller based on an output signal from the torque sensor. A steering angle ratio varying mechanism is disposed between the sector shaft and the torque sensor for varying the ratio of an angle through which the road wheels are turned to an angle through which the steering wheel is turned.

摘要翻译： 转向装置具有能够响应于用于转向路车轮的方向盘的旋转而旋转的扇形轴，所述方向盘通过联接到所述扇形轴的垂直杆臂。 在从方向盘到扇形轴的转向转矩的路径中，用于检测施加到方向盘的转向转矩的转矩传感器位于比扇形轴更靠近方向盘的位置。 电动机可操作地联接到扇形轴以向扇形轴施加辅助力。 电动机由控制器根据来自转矩传感器的输出信号控制。 转向角比变化机构设置在扇形轴和转矩传感器之间，用于改变转向车轮转动的角度与方向盘转动的角度之比。

公开(公告)号：US5213879A

公开(公告)日：1993-05-25

申请号：US871309

申请日：1992-04-20

申请人： Takahiro Niwa ,  Yasuo Shimizu

发明人： Takahiro Niwa ,  Yasuo Shimizu

IPC分类号： B32B7/02 ,  B32B7/12 ,  B32B15/06 ,  B32B25/04 ,  F16F9/30 ,  F16F15/02 ,  G10K11/168

CPC分类号： G10K11/168 ,  B32B7/02 ,  F16F9/306 ,  Y10T428/2495 ,  Y10T428/31696 ,  Y10T428/31826 ,  Y10T428/3183

摘要： A plurality of viscoelastic layers in the form of rubber films are sandwiched between two constraint plates in the form of iron plates via polyamide adhesive films to form an alternatingly laminated structure. Materials of the respective elements are selected so that their degrees of elasticity satisfy the relationship: constraint plate>adhesive layer>viscoelastic layer. The thickness of each rubber film is limited below a predetermined value to maintain its thermal and pressure resistance, and the rubber films are laminated up to a total thickness required for obtain a desired vibration damping property. The vibration damper, thus obtained, is excellent in vibration property, thermal and pressure resistance, and resistance against oils and solvents, and effective even under a severe environment.

公开(公告)号：US5195074A

公开(公告)日：1993-03-16

申请号：US740379

申请日：1991-08-05

申请人： Katsushide Tanoshima ,  Minoru Ohtsuka ,  Shizuo Nagata ,  Masahiro Takahashi ,  Yasuo Shimizu

发明人： Katsushide Tanoshima ,  Minoru Ohtsuka ,  Shizuo Nagata ,  Masahiro Takahashi ,  Yasuo Shimizu

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/12

CPC分类号： G11B7/12 ,  G11B7/08582 ,  G11B7/09

摘要： In an optical head apparatus for recording or reproducing information onto or from an optical disc, a carriage is movable along a guide shaft extending in a direction parallel with the radial direction of the optical disc, and an armature is mounted on the carriage so that it can rotate about a pivotal axis perpendicular to the surface of the optical disc. An objective lens is fixed to the armature and positioned to traverse the tracks on the optical disc when the armature rotates. Guide yokes extend in parallel with the guide shaft. Tracking and carriage-servo coils are fixed to the armature and have a hollow through which the guide yokes loosely extend. A magnetic field means creates magnetic lines of force perpendicular to the longitudinal direction of the guide yokes and parallel with the surface of the optical disc. A drive circuit supplies currents to the tracking and carriage-servo coils in such directions as to produce electromagnetic forces in parallel with each other thereby driving the armature along the guide yokes or in such directions as to produce electromagnetic forces in antiparallel with each other to rotate the armature about the pivotal axis.

摘要翻译： 在用于在光盘上记录或再现信息的光学头装置中，滑架可沿着与光盘的径向平行的方向延伸的引导轴移动，并且电枢安装在滑架上，使得它 可围绕垂直于光盘表面的枢转轴旋转。 当电枢旋转时，物镜固定到电枢并定位成横过光盘上的轨道。 引导轭与引导轴平行延伸。 跟踪和托架伺服线圈固定在电枢上，并具有中空的引导线松动地延伸通过该中空。 磁场意味着产生垂直于引导轭的纵向方向的磁力线并与光盘的表面平行。 驱动电路将电流提供给跟踪和托架伺服线圈，以便产生彼此平行的电磁力，从而沿着引导轭驱动电枢，或沿着这样的方向驱动电枢，以产生彼此反平行的电磁力，以使其旋转 电枢围绕枢转轴线。

公开(公告)号：US5063098A

公开(公告)日：1991-11-05

申请号：US326611

申请日：1989-03-21

申请人： Takahiro Niwa ,  Yasuo Shimizu

发明人： Takahiro Niwa ,  Yasuo Shimizu

IPC分类号： F16F15/02 ,  B32B15/06 ,  B32B15/08 ,  E04B1/84 ,  E04B1/86 ,  F16F9/30 ,  G10K11/16

CPC分类号： E04B9/045 ,  B32B15/06 ,  E04B1/86 ,  F16F9/306 ,  E04B2001/8461 ,  Y10T428/239 ,  Y10T428/3154 ,  Y10T428/31681 ,  Y10T428/31692 ,  Y10T428/31696 ,  Y10T428/31699 ,  Y10T428/31826

摘要： A vibration damper includes two materials, each being formed of a metal sheet having a rubber- or synthetic resin-base viscoelastic polymeric layer or layers formed on one or both sides, which are arranged in opposition to each other through said viscoelastic layers and bonded together with the use of a hot-melt-adhesive synthetic resin layer having a high melting point. Alternatively, one of said materials is arranged in opposition to another metal sheet through said vicoelastic layer or layers and bonded thereto with the use of said hot-melt-adhesive synthetic resin layer. A soundproofing structure using such a vibration damper is also provided.

公开(公告)号：US4932221A

公开(公告)日：1990-06-12

申请号：US293884

申请日：1989-01-06

申请人： Yasuo Shimizu ,  Nobuyoshi Terada

发明人： Yasuo Shimizu ,  Nobuyoshi Terada

IPC分类号： F25D11/00 ,  F24F5/00 ,  F25B7/00 ,  F25B49/02 ,  F25D16/00 ,  F25D17/02 ,  F25D17/00

CPC分类号： F25D16/00 ,  F25B7/00 ,  F25D17/02 ,  F25B2500/31 ,  F25B2700/21172 ,  F25B49/027 ,  F25D2700/14

摘要： An air-cooled cooling apparatus for cooling a cooling liquid within a cooling pipe of a refrigeration machine comprising a cooling cycle including a coolant compressor, an air-cooled condenser, an expansion valve, and a cooler, thereby cooling liquid of the refrigeration machine. The apparatus also comprises an air-cooled heat exchanger, outdoor-temperature sensors and three-way valves for controlling the flow of the cooling liquid to be cooled. When the outdoor temperature is high, the cooling liquid is supplied to the cooler, and when the outdoor temperature is low, the compressor is shut down and the cooling liquid is isolated from the cooler and supplied to the heat exchanger to be cooled by cold outdoor air.

摘要翻译： 一种用于冷却制冷机冷却管内的冷却液的冷却冷却装置，其特征在于，具有包括冷却剂压缩机，风冷冷凝器，膨胀阀和冷却器的冷却循环，从而冷却制冷机的液体。 该装置还包括风冷式热交换器，室外温度传感器和用于控制要冷却的冷却液体的流动的三通阀。 当室外温度高时，向冷却器供给冷却液，当室外温度低时，关闭压缩机，将冷却液从冷却器隔离并供给至热交换器，以冷却室外 空气。

公开(公告)号：US4837692A

公开(公告)日：1989-06-06

申请号：US30323

申请日：1987-03-26

申请人： Yasuo Shimizu

发明人： Yasuo Shimizu

IPC分类号： B62D5/04

CPC分类号： B62D5/0463 ,  B62D5/0466

摘要： An electric power steering system (20) comprises a control device (32) which controls a direct-current motor (49) for operatively providing auxiliary torque to a steering shaft (26) in dependence on steering torque (Ts) acting on the steering shaft. The control device (32) includes a control signal generating circuit (70) which generates a PWM signal (t3, T4, T5) for controlling the motor in dependence on the steering torque, and a motor drive circuit (80) which receives the PWM signal and impresses an on-off voltage to the motor, the drive circuit (80) having a close circuit (49-86-80a, 49-83-80d) in which an electric current (Ia) due to an inductance of the motor flows while the on-off voltage is off. The steering system (20) further comprises a mechanism (76) for detecting a steering speed (Ns) of a steering wheel. The control signal generating circuit (70) generates the PWM signal in dependence, in a positive steering state in which the rotating direction of the steering wheel is coincident with the acting direction of the steering torque, on a first function (125, 126) and, in a steering wheel returning state in which the rotating direction of the steering wheel is not coincident with the acting direction of the steering torque, on a second function (127, 128), having the steering torque and the steering speed as parameters thereof.

摘要翻译： 电动助力转向系统（20）包括控制装置（32），控制装置（32）根据作用在转向轴上的转向转矩（Ts）控制直流电动机（49），用于向转向轴（26）可操作地提供辅助转矩 。 控制装置（32）包括：控制信号生成电路（70），其根据转向转矩产生用于控制电动机的PWM信号（t3，T4，T5）;以及接收PWM的电动机驱动电路（80） 信号并向电动机施加开关电压，驱动电路（80）具有闭合电路（49-86-80a，49-83-80d），其中由电动机的电感引起的电流（Ia） 在开关电压关闭时流动。 转向系统（20）还包括用于检测方向盘的转向速度（Ns）的机构（76）。 在第一功能（125,126）和第二功能（125,126）中，控制信号生成电路（70）依次生成所述PWM信号，所述PWM信号处于所述方向盘的旋转方向与所述转向转矩的作用方向一致的正转向状态，以及 在具有转向转矩和转向速度作为其参数的第二功能（127,128）上的方向盘的旋转方向与转向转矩的作用方向不一致的方向盘返回状态。

公开(公告)号：US4766970A

公开(公告)日：1988-08-30

申请号：US105556

申请日：1987-10-06

申请人： Yasuo Shimizu

发明人： Yasuo Shimizu

IPC分类号： F16J15/18 ,  B62D3/12 ,  B62D5/04 ,  B62D5/22

CPC分类号： B62D5/0427 ,  B62D5/0448

摘要： A motor-operated power steering apparatus includes a pinion shaft having a pinion, a rack shaft having a rack meshing with the pinion, a gear casing having first and second spaces therein, the pinion shaft being rotatably supported in the gear casing, the rack shaft being axially movably supported in the gear casing, an electric motor for generating assistive power, an assistive-power transmitting mechanism disposed in the gear casing for transmitting power of the electric motor to the rack shaft, and a partition member disposed between the first space in which the rack is disposed and the second space in which the assistive-power transmitting mechanism is disposed, and isolating the first and second spaces from each other for preventing dust and water from entering the assistive-power transmitting mechanism from outside. The rack shaft and the gear casing are of reduced lengths to make the power steering apparatus small in size and lightweight.

摘要翻译： 一种电动助力转向装置，包括具有小齿轮的小齿轮轴，具有与小齿轮啮合的齿条的齿条轴，齿轮箱，其中具有第一和第二空间，小齿轮轴可旋转地支撑在齿轮箱中，齿条轴 被轴向移动地支撑在齿轮箱中，用于产生辅助动力的电动机，设置在齿轮箱中的辅助动力传递机构，用于将电动机的动力传递到齿条轴;以及分隔构件，其布置在第一空间之间 齿条配置的第二空间和设置有辅助动力传递机构的第二空间，并且隔离第一和第二空间，以防止灰尘和水从外部进入辅助动力传递机构。 机架轴和齿轮箱的长度减小，使动力转向装置的尺寸和重量轻。

公开(公告)号：US4715461A

公开(公告)日：1987-12-29

申请号：US820347

申请日：1986-01-21

申请人： Yasuo Shimizu

发明人： Yasuo Shimizu

IPC分类号： B62D5/04

CPC分类号： B62D5/0463

摘要： An electric power steering system for vehicles including a driving control circuit (76, 100, 108) for feeding, in consideration of an output signal (S.sub.1, S.sub.2) from a steering torque dectection mechanism (77) for detecting steering torque (Ts) acting on an input shaft (4), a drive signal (Va) to an electric motor (33) for producing auxiliary torque to be supplied to an output shaft (7). The steering system further comprises a detection mechanism (82) for detecting the steering speed (Ns) of the input shaft (4), and the driving control circuit (76, 100, 108) is adapted to feed the drive signal (Va) to the electric motor (33) in consideration of an output signal (S.sub.4, S.sub.5) from the steering speed detection mechanism (82) as well as of the output signal (S.sub.1, S.sub.2) from the steering torque detection mechanism (77). The driving control circuit (76, 100, 108) includes a micro-computer unit (76) for determining by address designation a control signal (T.sub.3, T.sub.4 , T.sub.5) as basis of the drive signal (Va) to the elecric motor (33), depending on the output signal (S.sub.1, S.sub.2) from the steering torque detection mechanism (77) and the output signal (S.sub.4, S.sub.5) from the steering speed detection mechanism (82).

摘要翻译： 一种用于车辆的电动助力转向系统，包括驱动控制电路（76,100,108），用于考虑来自转向转矩检测机构（77）的输出信号（S1，S2），用于检测作用的转向转矩（Ts） 在输入轴（4）上的驱动信号（Va）到用于产生供给输出轴（7）的辅助转矩的电动机（33）。 转向系统还包括用于检测输入轴（4）的转向速度（Ns）的检测机构（82），并且驱动控制电路（76,100,108）适于将驱动信号（Va） 考虑来自转向速度检测机构（82）的输出信号（S4，S5）以及来自转向转矩检测机构（77）的输出信号（S1，S2）的电动机（33）。 驱动控制电路（76,100,108）包括微电脑单元（76），用于通过地址指定来控制信号（T3，T4，T5）作为到电动马达（33）的驱动信号（Va）的基础 ），取决于来自转向转矩检测机构（77）的输出信号（S1，S2）和来自转向速度检测机构（82）的输出信号（S4，S5）。

公开(公告)号：US4671371A

公开(公告)日：1987-06-09

申请号：US786040

申请日：1985-10-10

申请人： Yasuo Shimizu

发明人： Yasuo Shimizu

IPC分类号： B62D5/04 ,  B62D5/18

CPC分类号： B62D5/0418 ,  B62D5/04 ,  B62D5/0421

摘要： A motor-driven power steering system in a motor vehicle having a body, a steering wheel, and steerable wheels. The power steering system includes a linkage mechanism including tie rods coupled to the steerable wheels and an arm coupled to the tie rods and operatively connecting the steering wheel and the steerable wheels to each other. A torque detector is disposed in the linkage mechanism for detecting the torque applied to the steering wheel and generating a signal indicative of the detected torque. A motor is fixedly mounted on the body and has an output shaft, and the arm is fixed to the output shaft of the motor. The power steering system also has a power supply for energizing the motor and a control circuit responsive to the signal from the torque detector for controlling the torque generated by the motor. Noise and vibration produced by the motor is effectively prevented from being transmitted to the passenger compartment and the steering wheel.

摘要翻译： 一种机动车辆中的电动助力转向系统，其具有主体，方向盘和可转向轮。 动力转向系统包括联动机构，其包括联接到可转向轮的拉杆和联接到拉杆的臂，并将方向盘和可转向轮彼此可操作地连接。 扭矩检测器设置在联动机构中，用于检测施加到方向盘的扭矩并产生指示检测到的扭矩的信号。 电机固定安装在主体上，并具有输出轴，臂固定在电动机的输出轴上。 动力转向系统还具有用于使电动机通电的电源和响应于来自转矩检测器的信号的控制电路，用于控制由电动机产生的转矩。 有效地防止由电动机产生的噪声和振动传递到乘客室和方向盘。