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公开(公告)号：US20240309945A1
公开(公告)日：2024-09-19
申请号：US18576392
申请日：2021-09-21
发明人： Masaru KOBAYASHI
CPC分类号： F16H49/001 , F16H57/02 , G01L5/12 , F16H2049/003
摘要： In the interior of a device housing of a strain wave gearing, a detection mechanism is incorporated at a site on the outer peripheral side of a hub of a wave generator. The hub of the wave generator is linked to a motor shaft so that axial force does not act thereon. The detection mechanism detects minute displacements in the axial direction that occur in the hub of the wave generator due to thrust acting on the wave generator. Thrust acting on the wave generator is obtained on the basis of the detected minute displacements. With this strain wave gearing in which the detection mechanism is incorporated, operation control that is responsive to sensed thrust is possible through the use of thrust information during operation.
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公开(公告)号：US20240301944A1
公开(公告)日：2024-09-12
申请号：US18574880
申请日：2021-08-31
发明人： Masaru KOBAYASHI
CPC分类号： F16H49/001 , F16D55/02 , F16D57/002 , F16D65/005 , F16H2049/003
摘要： A strain wave gearing is provided with: a rigid internally toothed gear; a flexible externally toothed gear that is arranged coaxially on the inside of the internally toothed gear; and a wave generator that is arranged coaxially on the inside of the externally toothed gear, and, on the inside of the externally toothed gear, in addition to the wave generator, a brake mechanism that constrains or prevents the rotation of the wave generator is installed. Since the empty space on the inside of the external gear is used as a space for installing the brake mechanism, the strain wave gearing with a brake can be realized without increasing the axial length thereof. Accordingly, by using the strain wave gearing, an axially short, flat actuator with a brake can be realized.
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公开(公告)号：US20240255050A1
公开(公告)日：2024-08-01
申请号：US18560761
申请日：2021-07-20
发明人： Yoshihide KIYOSAWA
IPC分类号： F16H57/04 , C10M103/02 , C10M103/06 , C10M107/38 , C10N20/06 , C10N50/08 , F16H49/00
CPC分类号： F16H57/041 , C10M103/02 , C10M103/06 , C10M107/38 , F16H49/001 , F16H57/0434 , F16H57/048 , C10M2201/0413 , C10M2201/0613 , C10M2201/0653 , C10M2201/0663 , C10M2213/0623 , C10N2020/06 , C10N2050/08
摘要： A lubrication mechanism of a strain wave gearing is disposed in an interior space of an externally toothed gear and comprises a powder-accommodating bag that stores solid lubricant powder. A diaphragm of the externally toothed gear is repeatedly deflected during the driving of the strain wave gearing. Vibration or deflection is repeatedly imparted to the powder-accommodating bag and the solid lubricant powder is discharged from a powder discharge hole formed in the powder-accommodating bag into the interior space. A site to be lubricated is lubricated with the solid lubricant powder discharged into the interior space. Harmful effects due to a large amount of the solid lubricant powder being supplied to the site to be lubricated at one time can be resolved, and a necessary amount of the solid lubricant powder can be continuously supplied to the site to be lubricated.
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公开(公告)号：US20240255045A1
公开(公告)日：2024-08-01
申请号：US18560780
申请日：2021-07-21
发明人： Yoshihide KIYOSAWA
CPC分类号： F16H49/001 , F16C33/6696 , F16H57/041 , F16H57/045 , F16H57/0471 , F16H57/048 , F16C2361/61 , F16H2049/003
摘要： A wave bearing of a space strain wave gearing device comprises an inner ring formed from a bearing steel, an outer ring formed from a martensitic stainless steel, and balls formed from ceramics. On the inner ring formed from a bearing steel, a ceramic coating formed by an AD method is formed as a rust-preventive coating. In the space strain wave gearing device that adopts solid lubrication (powder lubrication), it is possible to reliably prevent rust from developing on the inner ring formed from a bearing steel of the wave bearing. In a space environment where the temperature greatly changes, appropriate setting of the linear expansion coefficients of the inner ring, the outer ring, and the balls enables a change in the radial gap of the wave bearing to be suppressed to a range that does not interfere with practical use.
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公开(公告)号：US20240218926A1
公开(公告)日：2024-07-04
申请号：US17921215
申请日：2021-08-04
发明人： Masaru KOBAYASHI
CPC分类号： F16H57/048 , F16H49/001 , F16H57/041
摘要： A strain wave gearing is lubricated by a non-hydrophobized powder enclosed in an internal space until the strain wave gearing is fully broken in, and the non-hydrophobized powder is transferred to contact surfaces of contact parts to form a lubricating film. During operation under load, the strain wave gearing is lubricated by a hydrophobized powder enclosed in the internal space instead of the non-hydrophobized powder. Each of the powders used is a powder of an ionic crystalline compound (MoS2, WS2, etc.) having a layered crystal structure. By lubricating the strain wave gearing with the hydrophobized powder during operation under load, any temporary decrease in efficiency at the start of operation is minimized and stable operation of the strain wave gearing can be maintained.
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公开(公告)号：US11874143B2
公开(公告)日：2024-01-16
申请号：US17838922
申请日：2022-06-13
发明人： Brian Coyne , Yuki Katoh
CPC分类号： G01D5/2497 , G01B7/003 , G01B7/30 , G01D5/145
摘要： An exemplary encoder assembly includes a substrate, a first encoder, and a second encoder. The substrate has two or more position sensors, each position sensor being configured for detecting a rotary position of a shaft or other rotating element of a machine. The first encoder includes at least one first position sensor of the two or more position sensors. The at least one first position sensor is disposed on the substrate for off-axis alignment with the shaft or other rotating element of the machine. The second encoder includes a second position sensor of the two or more position sensors, the second position sensor being disposed on the substrate for on-axis or off-axis alignment with the shaft or other rotating element of the machine. Each position sensor is configured to detect different or common signal types, and a signal type of the second position sensor excludes optical signals.
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公开(公告)号：US11841071B2
公开(公告)日：2023-12-12
申请号：US17630351
申请日：2019-09-27
发明人： Masaru Kobayashi
CPC分类号： F16H49/001 , F16H55/0833
摘要： The flat strain wave gearing is provided with an axially arranged rigid gear, flexible gear and wave generator. The flexible gear forms a flat truncated cone shape, has a tooth formation portion connected via a bellows-shaped cross-sectional diaphragm to a rigid boss which is an output shaft linking part. The flat strain wave gearing can ensure axial flexibility of the tooth formation portion, and can enable teeth of the flexible gear to mesh favorably with teeth of the rigid gear in the axial direction in each position in the tooth trace direction. Local bias of the load torque in the meshing portion in the tooth formation portion can also be suppressed.
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公开(公告)号：US11788581B2
公开(公告)日：2023-10-17
申请号：US17419950
申请日：2020-04-27
发明人： Yuki Kato , Douglas Olson , Brian Coyne
CPC分类号： F16C41/007 , F16C33/581 , F16C33/60 , F16H1/32 , F16H49/001 , F16C2361/61 , F16C2361/65 , F16C2380/27
摘要： A bearing unit is provided with a strain element for torque detection. The strain element is provided with a first annular part attached to a rotation-side member, a second annular part attached to a load-side member, and a plurality of ribs serving as strained parts linking the first annular part and the second annular part together. One of an inner race and an outer race is integrally formed on the first annular part of the strain element. Deformation, which occurs in the ribs of the strain element due to torque exerted on the rotation-side member from the load-side member, is detected by a strain gauge, etc., and converted to torque. The strain element for torque detection can be incorporated into a motor, a reducer, or another rotary propulsion unit without the need for a dedicated installation space and without the need for fastening fittings, etc.
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公开(公告)号：US20230048463A1
公开(公告)日：2023-02-16
申请号：US17758245
申请日：2020-04-24
发明人： Shintaro UENO , Yuki KATO , Yoshinori SHIBAHARA
摘要： A rotary encoder is incorporated in an annular space formed between a hollow rotating shaft and an encoder case. The rotary encoder has an annular printed wiring substrate, a plurality of mounting substrates that are outward from the printed wiring substrate in the radial direction and are arranged in the circumferential direction, and inter-substrate wiring cables bridged between the printed wiring substrate and each of the mounting substrates in the radial direction. Power supply to the mounting substrates and signal transmission and reception between the mounting substrates can be accomplished without routing around the wiring cables. It is possible to achieve a rotary encoder that is suitable for being incorporated in a narrow annular space.
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公开(公告)号：US20220375670A1
公开(公告)日：2022-11-24
申请号：US17619497
申请日：2019-08-28
发明人： Masaru KOBAYASHI
摘要： A push-pull solenoid is provided with a cylindrical guide member that is fixed to a case. A circular outer peripheral surface of a plunger is in contact with a friction guide surface formed on a circular inner peripheral surface of the guide member, and slides along the friction guide surface. Frictional force due to contact with the friction guide surface is always acting on the plunger, so it is possible to suppress impact-like contact of the plunger with an object to be manipulated during suctioning, and vibration and noise caused thereby. Moreover, over-recovery and falling-out of the plunger after suction is released can also be prevented.
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