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公开(公告)号：US20180216703A1
公开(公告)日：2018-08-02
申请号：US15743007
申请日：2017-02-14
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Takeshi Etori
Abstract: An engagement chain has two chain members. Each of the chain members includes link plates, each of which has two pin holes, and coupling pins. The two pin holes are aligned in the advancing/retreating direction and are sized differently from each other. Each of the coupling pins of each chain member is tightly received in the smaller pin hole of the two pin holes of one of any adjacent two of the link plates in the advancing/retreating direction and is loosely received in the larger pin hole of the two pin holes of the other one of the two adjacent link plates. In a state in which the chain members are integrated with each other, any two of the coupling pins that are opposed to each other are in the same received states in the corresponding pin holes.
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公开(公告)号：US20200260636A1
公开(公告)日：2020-08-20
申请号：US15781559
申请日：2016-11-28
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Go Ito , Satoshi Tohda
Abstract: A transplanting device separates a seedling bed piece with a seedling from a seedling bed along slits and transplants the separated seedling bed piece to a permanent planting panel. The transplanting device includes a separating mechanism and a transplanting mechanism. The separating mechanism includes a holding member and is capable of separating the seedling bed piece from the seedling bed. The transplanting mechanism is capable of transplanting the separated seedling bed piece to the permanent planting panel. The separating mechanism includes an engagement bar capable of hampering movement of an adjacent seedling bed piece adjacent to a holding-target seedling bed piece held by the holding member by becoming engaged with the adjacent seedling bed piece from a side that is different from a first side, on which the stalk of the seedling grows.
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公开(公告)号：US20250137501A1
公开(公告)日：2025-05-01
申请号：US18917626
申请日：2024-10-16
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Yoshihito Shimanaka
IPC: F16D41/12
Abstract: To provide a simple-structured selectable clutch that can be switched between operating modes, has high responsiveness, allows a desired torque capacity to be secured, causes less rattling and noise, and allows for switching with a small force even when transmitting a large torque. The clutch includes a first clutch mechanism configured to transmit rotation at any rotation angle via movable and/or rotatable locking members disposed between a first rotating element and a second rotating element, a second clutch mechanism configured to transmit rotation at a predetermined angle by engagement between a first engaging element and a second engaging element, and an operating mechanism for switching the actions of at least the first clutch mechanism and/or second clutch mechanism. The clutch is configured to allow switching between transmission and interruption of torque between relatively rotatable first and second shafts.
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公开(公告)号：US12253119B2
公开(公告)日：2025-03-18
申请号：US18388717
申请日：2023-11-10
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Akira Morita , Tadashi Murakami , Hirokazu Tsuneda
Abstract: A cam clutch unit which can receive an axial load in a small space without increasing rigidity of a cage ring or disposing another member is provided.
The cam clutch unit includes a plurality of cams 130 and a plurality of rollers 140 disposed so as to be aligned in a circumferential direction between an inner ring and an outer ring, a cage ring 150 having a plurality of pocket portions 151, 152 which regulate relative movement in a circumferential direction of the cam 130 and the roller 140, and an annular spring 160 which urges the cam 130, in which the roller 140 has a part protruding in an axial direction more than the cage ring 150 when being held by the cage ring 150.-
公开(公告)号：US12196276B2
公开(公告)日：2025-01-14
申请号：US18629186
申请日：2024-04-08
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Yuji Kurematsu
IPC: F16D41/067
Abstract: A selectable clutch with a selector is provided, in which support grooves are formed to one of an inner race and an outer race, while pocket parts are formed to the other. A resilient member is provided to bias rollers disposed between the inner race and outer race toward the pocket parts. A roller-holding surface of the support groove and a roller-holding surface of the pocket part are formed with an inclination angle such that, when the rollers are held therebetween, a force acts on the rollers in a direction to move the rollers toward the pocket parts. In the lock mode, the rollers are each held by the support groove, pocket part, and selector.
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Patent Agency Ranking
公开(公告)号：US20240309940A1
公开(公告)日：2024-09-19
申请号：US18431096
申请日：2024-02-02
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Ryosuke Nanri , Kosuke Yabuki
IPC: F16G13/04
CPC classification number: F16G13/04
Abstract: To provide a high-strength silent chain and a chain drive system. The silent chain is made up of a plurality of link plates pivotably coupled together with connecting pins. The plurality of link plates include two or more types of link plates having different shapes. The link plates of different shapes are designed to have pitch lines at the same height when the link plates sit on a sprocket. The chain drive system includes this silent chain.
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公开(公告)号：US20240288069A1
公开(公告)日：2024-08-29
申请号：US18420878
申请日：2024-01-24
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Masahiko Yamauchi
CPC classification number: F16H63/3416 , F16H59/44 , F16H59/50 , F16H59/66 , F16H61/20 , F16H59/18 , F16H2059/443 , F16H2059/446 , F16H2059/663 , F16H2061/205 , F16H2312/04 , F16H2312/12
Abstract: An object of the present invention is to provide a vehicle parking lock system that realizes a parking lock with a positive user perception, and enables energy and cost reductions without complex control and with a simple configuration. The object is achieved by a selectable clutch configured to be switchable between four operating modes and provided to one of an input shaft, an output shaft, and an intermediate shaft of a transmission. The operating mode of the selectable clutch is controlled based on detection signals of a plurality of sensors to prevent an unintended movement of the vehicle when the vehicle is stationary.
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公开(公告)号：US20240209903A1
公开(公告)日：2024-06-27
申请号：US18599989
申请日：2024-03-08
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Eiichi Nakagawa
CPC classification number: F16D41/084 , F16D41/07
Abstract: An object of the present invention is to provide a cam and a one-way cam clutch that realize a reduction in weight and production cost, provide more design freedom in setting the center of gravity of the cam, and achieve high responsiveness. The above object is achieved by a cam configured to make contact with an inner race and an outer race by a rotational moment applied in an engaged direction by an annular spring, in which a plurality of cam plates having an identical outer contour and arranged in parallel along a direction of the pivot axis are coupled together and united by a connecting pin extending in the direction of the pivot axis, and the annular spring is configured to be mountable between adjacent cam plates and/or on an outer side of the plurality of cam plates in the direction of the pivot axis.
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公开(公告)号：US20240200618A1
公开(公告)日：2024-06-20
申请号：US18500548
申请日：2023-11-02
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Akira Morita , Riku Kato , Hirokazu Tsuneda
IPC: F16D41/063 , F16D41/067
CPC classification number: F16D41/063 , F16D41/067
Abstract: A cam clutch unit includes a plurality of cams and a plurality of rollers disposed so as to be aligned in a circumferential direction between an inner ring and an outer ring, a cage ring having a plurality of pocket portions which regulate relative movement in a circumferential direction of the cam and the roller, and an annular spring which urges the cam, in which the cam has an engagement stepped portion capable of engagement with the spring, the cage ring has an end-part circumferential annular portion continuing in the circumferential direction on an end surface in the axial direction, the pocket portion regulates movement of the roller to the outer ring side and the inner ring side and has a claw portion capable of insertion of the roller from the outer ring side or the inner ring side by elastic deformation.
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公开(公告)号：US20240191782A1
公开(公告)日：2024-06-13
申请号：US18378340
申请日：2023-10-10
Applicant: TSUBAKIMOTO CHAIN CO.
Inventor： Yuichiro Ishikawa
IPC: F16H7/08
CPC classification number: F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0891
Abstract: Provided is a tensioner which has a small total number of components and no risk of incorrect assembly, allows easy load change, is easy to assemble, and excellently stabilizes an oil pressure in a pressure oil chamber. The tensioner 100 includes a relief mechanism that relieves oil to the outside of a plunger 110 when the oil pressure in the pressure oil chamber formed between the plunger 110 and a plunger containing hole 121 in a housing 120 increases, relief holes 141 extending through the plunger 120 from the inside of a plunger inner space 111 to an outer circumferential side thereof, and a hole closing member 142 that is pressed into an opening of each of the relief holes 141 on the outer circumferential side.
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