专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5657828A Motor-driven cart 失效
标题翻译：电动推车
公开(公告)号：US5657828A
公开(公告)日：1997-08-19
申请号：US507910
申请日：1995-07-27
申请人： Sakae Nagamachi
发明人： Sakae Nagamachi
IPC分类号： B62D1/12 , B60K1/00 , B60L11/18 , B62B3/00 , B62B5/00 , B62D1/28 , B62D11/04 , G05D1/02 , B62D51/04 , B62D1/24
CPC分类号： B60L11/1805 , B60L2200/30 , B62B5/0073 , Y02T10/646 , Y02T10/648 , Y02T10/7005
摘要： A motor-driven cart includes a manned/unmanned operation change-over switch, first and second electric motors for driving the cart, a handle lever provided to a main body of the cart to be swung to a predetermined angle with respect to a left, right, forward or backward direction, and a device for generating electric signal for steering and for speed control in response to a swing operation of the handle lever. When an operator changes the manned/unmanned operation change-over switch to its manned operation side and the handle lever is placed in its neutral zone, the motors are put in their stopped state. When the operator manipulates the handle lever in the left, right, forward or backward direction to a position outside the neutral zone, the forward or reverse rotational speeds of the first and second motors are increased in proportion to the extent of the swing operation to turn the cart to the left or right direction or to perform the forward or backward speed control. When the operator's hand is released from the handle lever, this causes the lever to be automatically returned to the neutral zone nearly in the middle of pivotal center by a restoring force of four spring members.
摘要翻译：电动推车包括载人/无人操作切换开关，用于驱动车的第一和第二电动马达，设置在相对于左摆动到预定角度的推车主体上的手柄杆，右转，前进或后退方向，以及用于响应于手柄的摆动操作产生用于转向和用于速度控制的电信号的装置。当操作者将载人/无人操作切换开关切换到其载人操作侧并且手柄杆被置于其中立区域时，马达处于停止状态。当操作者将把手杆左右方向，前后方向操作到中性区域外的位置时，第一和第二电动机的正转或反转速度与摆动操作的程度成正比地增大推车向左或向右方向或执行前进或后退速度控制。当操作者的手从把手杆释放时，这使得杠杆通过四个弹簧构件的恢复力自动地返回到位于枢转中心的中间区域。

2. 发明授权

US5391975A Constant-frequency electric power source 失效
标题翻译：恒频电源
公开(公告)号：US5391975A
公开(公告)日：1995-02-21
申请号：US51309
申请日：1993-04-23
申请人： Kazuo Okubo
发明人： Kazuo Okubo
IPC分类号： H02K19/34 , H02P9/14 , H02P9/30 , H02P9/48
CPC分类号： H02K19/34 , H02P9/30 , H02P2101/30
摘要： A constant-frequency electric power source including an A.C. generator having a field coil, to be driven by an engine and a converter unit which includes a rectifying circuit and an inverter. A controller controls the A.C. generator, and the A.C. generator has at least two groups of multi-phase output coils, one group of the at least two groups of multi-phase output coils being connected to the converter unit for providing an A.C. electric power with a constant-voltage and a constant frequency to be supplied to a first load, and the remaining groups of the at least two pairs of multi-phase output coils being connected to other loads respectively. The output of the remaining groups is supplied to the A.C. generator controller thereby controlling the input of the field coil of the A.C. generator. The A.C. electric power used for the first load is different from the A.C. electric power used for the other loads.
摘要翻译：一种恒频电源，包括具有励磁线圈的交流发电机，由发动机驱动，以及包括整流电路和逆变器的转换器单元。控制器控制交流发电机，并且交流发电机具有至少两组多相输出线圈，所述至少两组多相输出线圈中的一组连接到转换器单元，以提供交流电源，将恒定电压和恒定频率提供给第一负载，并且所述至少两对多相输出线圈中的剩余组分别连接到其他负载。其余组的输出被提供给交流发电机控制器，从而控制交流发电机的励磁线圈的输入。用于第一负载的交流电功率与用于其他负载的交流电功率不同。

3. 发明授权

US4972207A Thermal printing device for feeding tightly stretched paper 失效
标题翻译：热敏打印装置用于送纸紧张纸
公开(公告)号：US4972207A
公开(公告)日：1990-11-20
申请号：US369400
申请日：1989-06-21
申请人： Kiyoshige Ishiyama , Hiromitsu Ogita
发明人： Kiyoshige Ishiyama , Hiromitsu Ogita
IPC分类号： B41J13/02 , B41J13/036 , B41J13/10
CPC分类号： B41J13/036 , B41J13/103
摘要： A thermal printing system of this type is able to obviate loosening of the paper sheet stock during its feeding step prior to printing, and thereby to prevent crumpling of the paper and information of misaligned print from occuring. A thermal printing system capable of performing aforesaid function can be achieved by making the printing system as such one comprising, a platen, a pair of pinch rollers one end of each of which is rotaably supported by each one of a pair of pinch roller levers and is resiliently biased by a pinch roller lever tensioning spring so that each pinch roller can be brought into tight contact with aforesaid platen, and a paper stock holding cassette case attached with a paper feed roller for feeding paper stock for printing, in which the peripheral speed of the platen is set higher than that of the paper feed roller of the paper holding cassette. By virtue of this improved construction, the feed roller attached to the paper holding cassette is utilized as a type of brake means for imparting back tension for the purpose of stretching the sheet of paper being fed.

4. 发明授权

US5819888A Friction plates for friction type coupling device 失效
标题翻译：摩擦式联轴器摩擦片
公开(公告)号：US5819888A
公开(公告)日：1998-10-13
申请号：US731486
申请日：1996-10-16
申请人： Hideki Tamura , Satoru Hiro
发明人： Hideki Tamura , Satoru Hiro
IPC分类号： F16D69/00 , F16D59/02 , F16D65/12 , F16D65/14 , F16D65/10
CPC分类号： F16D65/125 , F16D59/02 , F16D65/127 , F16D2069/004 , F16D2121/22
摘要： Friction plates for a friction type coupling device for displaying a function of braking, holding, accelerating or decelerating by depressing and contacting one friction member against the other friction member of a friction type coupling device composed of two friction plates one fabricated of metals or non-metallic materials or inorganic material. One friction plate has a friction portion which is selectively depressed against the other friction plate and a remaining non-contacting portion. The friction portion is formed as a plurality of protrusions by cutting away, by engraving a plurality of grooves, by cutting away non-contacting portions or by positively forming a plurality of protrusions on the surface of the friction plate. The area ratio of the friction potion to the whole area of the friction plate, namely the total of the contacting portion plus non-contacting portion is rendered less than 60%, preferably, less than 10%, whereby the variation of the generated friction force is made minimum and is able to keep stable friction performance.
摘要翻译：用于通过将一个摩擦构件压靠并接触摩擦式联接装置的另一个摩擦构件来显示制动，保持，加速或减速的功能的摩擦式联接装置的摩擦板，其由由金属或非金属制成的两个摩擦板组成，金属材料或无机材料。一个摩擦片具有摩擦部分，该摩擦部分被选择性地压靠在另一个摩擦片和剩余的非接触部分上。通过切割多个凹槽，通过切除非接触部分或通过在摩擦片的表面上积极地形成多个突起来将摩擦部分形成为多个突起。摩擦片与摩擦片的整个面积的面积比，即接触部分和非接触部分的总和小于60％，优选小于10％，由此产生的摩擦力的变化是最小的，能够保持稳定的摩擦性能。

5. 发明授权

US5148902A Electromagnetic coupling device 失效
标题翻译：电磁耦合器件
公开(公告)号：US5148902A
公开(公告)日：1992-09-22
申请号：US614599
申请日：1990-11-15
申请人： Hiroaki Nakamura
发明人： Hiroaki Nakamura
IPC分类号： F16D27/10 , F16D27/112 , F16D27/14
CPC分类号： F16D27/14 , F16D27/112 , F16D2027/008 , Y10T403/7061
摘要： An electromagnetic coupling device is proposed to obviate several drawbacks in the conventional devices, namely, to prevent loose fixing in axial direction which gives rise to undesirable rotation of the rotary shaft following the rotor, to reduce the production cost due to the use of magnetic pole in the rotor, to reduce lengthy lengthy assembly work brought about by many fixing rings and to prevent slipping out of the hub and the rotary shaft encountered in the conventional coupling devices.In order to obviate the drawbacks encountered in the conventional coupling device, a rotor retainer is placed around the rotary shaft to urge a rotor against a hub, in addition, the rotary shaft is provided with fixing portions of a minimum number, such as axially extending legs at least one of which is attached with a claw, stepped portions, a groove and so forth for preventing slipping out of the rotary shaft, hub and driven shaft.By virtue of such simplified structure, assembly of the related parts and components has remarkably reduced together with reduced production cost.

6. 发明授权

US4955736A Method and apparatus for energizing thermal head in accordance with dot pattern coincidence tables 失效
标题翻译：根据点图案符合表激励热敏头的方法和装置
公开(公告)号：US4955736A
公开(公告)日：1990-09-11
申请号：US310157
申请日：1989-02-14
申请人： Satoshi Iwata , Akikazu Toida , Fumio Takahashi
发明人： Satoshi Iwata , Akikazu Toida , Fumio Takahashi
IPC分类号： B41J2/365 , B41J2/38
CPC分类号： B41J2/365 , B41J2/38
摘要： The image data including a grid pattern to be printed by a thermal printer line by line is stored for three lines of dots in a plural line buffer, and the image data is scanned by a window frame of an inverted T-shape which covers the three lines. When a dot arrangement extracted by the window frame including an object dot and its surrounding dots coincides with a predetermined window frame pattern defined in an intermediate table, an address representing the dot arrangement is convertred into an intermediate code by the intermediate table. The intermediate code indicates the amount of heating energy to be supplied to a heating element corresponding to the object dot in order to preheat when the area of the object dot is a non-printing area, or to heat additionally when this area is a printing area, thereby to prevent a thin or broken portion from appearing in the printed pattern line.

7. 发明授权

US5283805A Segmented cold-wall induction melting crucible 失效
标题翻译：分段冷壁感应熔化坩埚
公开(公告)号：US5283805A
公开(公告)日：1994-02-01
申请号：US961362
申请日：1992-10-15
申请人： Hitoshi Kawano , Masanori Tsuda , Yasuhiro Nakai
发明人： Hitoshi Kawano , Masanori Tsuda , Yasuhiro Nakai
IPC分类号： F27B14/06 , F27B14/10 , H05B5/16 , H05B11/00
CPC分类号： F27B14/10
摘要： In a segmented water-cooled induction melting crucible mainly used for melting special metals such as reactive metals or alloys, two adjacent segments are coupled as a segment having two legs, one leg having an inlet water passage and the other leg having an outlet water passage, so that these water passages form a one-way water flow path when they are connected. When the two legs are connected at their top portion to form a shorted portion, the lower end of the legs are insulated from each other and from a base forming a bottom of the crucible. Alternatively the two legs can be entirely separated by elongating the slit and the water passage formed in each leg can be connected throgh an insulative, connecting member. In either case, the water pasage in each leg can be reduced to the same size as the inner tube in each segment of a conventional crucible, and by virtue of this construction, both the radial thickness and the width of each segment can be reduced which enables an increase the number of segments in a crucible with the same inner space.
摘要翻译：在主要用于熔化诸如反应性金属或合金的特殊金属的分段水冷感应熔炼坩埚中，两个相邻的段联接为具有两个腿的段，一个腿具有入口水通道，另一个腿具有出口水通道使得这些水通道在连接时形成单向水流路径。当两个腿在其顶部连接以形成短路部分时，腿部的下端彼此绝缘并形成坩埚底部的底座。或者，两条腿可以通过延长狭缝而完全分开，并且每条腿中形成的水通道可以连接在绝缘的连接构件上。在任一情况下，每个腿中的水管可以缩小成与常规坩埚的每个区段中的内管相同的尺寸，并且由于这种结构，可以减小每个区段的径向厚度和宽度，能够增加具有相同内部空间的坩埚中的段的数量。

8. 发明授权

US5234177A Magnetic braking apparatus and tension control system using the magnetic braking apparatus 失效
标题翻译：使用磁力制动装置的磁力制动装置和张力控制系统
公开(公告)号：US5234177A
公开(公告)日：1993-08-10
申请号：US691150
申请日：1991-04-25
申请人： Hiroshi Maji , Hajime Nakamura , Hikaru Okuno
发明人： Hiroshi Maji , Hajime Nakamura , Hikaru Okuno
IPC分类号： B65H23/06
CPC分类号： B65H23/066
摘要： A magnetic braking apparatus is integrally attached with a load detector such as an arm-like load cell through an attachment member, an outer fin, or a rotary joint between a yoke body and a stationary portion of an outside construction or facility thereby to form a magnetic braking apparatus having a function of load detection. A tension control system incorporates the magnetic braking apparatus with the load detector attached thereto to apply a braking force to a let-off reel. A controller in the tension control system calculates a roll diameter of the let-off reel based on a number of rotations detected by a rotation detector and a number of pulses generated in one rotation of the let-off reel, and generates a control signal representative of a desired braking torque which corresponds to the calculated roll diameter. The controller further receives from the load detector of the magnetic braking apparatus, a feedback signal representative of an actual braking force applied to the let-off reel, and the controller calculates an error signal between the desired braking torque signal and the feedback signal. The error signal is applied to the magnetic braking apparatus to excite the same. Thus, the accuracy of tension control is improved.

9. 发明授权

US5515953A Frictional force transmitting device used in vacuum 失效
标题翻译：在真空中使用的摩擦力传递装置
公开(公告)号：US5515953A
公开(公告)日：1996-05-14
申请号：US902862
申请日：1992-06-23
申请人： Hideki Tamura , Satoru Hiro
发明人： Hideki Tamura , Satoru Hiro
IPC分类号： F16D55/00 , F16D55/28 , F16D59/02 , F16D65/12 , F16D65/14 , F16D69/00 , F16D69/02
CPC分类号： F16D55/28 , F16D59/02 , F16D65/127 , F16D69/00 , F16D2055/0058 , F16D2069/004 , F16D2121/22
摘要： In a conventional frictional force transmitting device used in a vacuum, a problem has arisen when the device performs a sliding action over a certain distance, that is, its frictional force suddenly drops, which makes it impossible for the device to fulfill a desired function of braking. The above-mentioned problem in the frictional force transmitting device used in a vacuum for performing the function of braking, transmitting a frictional force, and effecting acceleration or deceleration, can be solved by improving the device, that is, by means of making its two opposing frictional elements so as to be selectively pressed against each other, in which one of the frictional elements is made of metal or of non-metallic materials and the other made of organic frictional materials, wherein the one of the frictional element made of metal or nonmetallic materials has surface roughness coarser than 3 microns in maximum height(Rmax) and is coarser than the other made of organic frictional materials.
摘要翻译：在真空中使用的传统的摩擦力传递装置中，当装置在一定距离上执行滑动动作时，即其摩擦力突然下降，产生了问题，这使得装置不可能实现所需的功能制动。用于执行制动功能，传递摩擦力并实现加速或减速的真空中的摩擦力传递装置中的上述问题可以通过改进装置，即通过使其两个相对的摩擦元件以选择性地彼此压靠，其中一个摩擦元件由金属或非金属材料制成，另一个摩擦元件由有机摩擦材料制成，其中摩擦元件由金属或非金属材料的表面粗糙度比最大高度（Rmax）大3微米，比其它由有机摩擦材料制成的粗糙度粗糙。

10. 发明授权

US5178582A Electromagnetic powder coupling device 失效
标题翻译：电磁粉末耦合器件
公开(公告)号：US5178582A
公开(公告)日：1993-01-12
申请号：US706335
申请日：1991-05-28
申请人： Hiroshi Maji , Hiroyoshi Yamaji , Hidehisa Tuji
发明人： Hiroshi Maji , Hiroyoshi Yamaji , Hidehisa Tuji
IPC分类号： F16D37/02 , F16D63/00
CPC分类号： F16D57/002 , F16D37/02 , F16D2037/002 , Y10T464/10 , Y10T464/30
摘要： An electromagnetic powder coupling device which can be used either as a brake or a clutch. In order to remove undesirable heat in the device, one attributable to Joule heat mainly emanated by field member, a rotor and a cylinder, and to other to frictional heat, especially inevitable for this kind of electromagnetic powder coupling device which is emanated by the friction between the rotor, cylinder and the magnetic powder filled in the space between the cylinder and the rotor, the coupling device incorporates a forced air draft cooling system. Two variations of cooling systems are disclosed, both of which have, in common with, at least a blower and a plurality of passages for forced draft air cooling not only to the external part but also to the inner part of the field member and the cylinder.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式