公开(公告)号：US20240229902A9

公开(公告)日：2024-07-11

申请号：US18379910

申请日：2023-10-13

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuichiro Ishikawa

IPC: F16H7/08

CPC classification number: F16H7/08 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0872 ,  F16H2007/0893 ,  F16H2007/0897

Abstract: An object of the present invention is to provide a tensioner with a simple structure that effectively maintains the oil pressure inside an oil pressure chamber at a correct level, while also making the machining and assembling processes less demanding. The tensioner includes a relief mechanism, which includes an orifice member that has an oil passage designed to form an orifice structure. The orifice member has a flat circular end wall part and a circumferential wall part that extends rearwards from the peripheral edge of the end wall part. The circumferential wall part includes a bulged portion that extends rearwards and is curved radially outwards. The bulged portion is designed such that the diameter of the circumscribed circle of the orifice member is greater than the inside diameter of the plunger as viewed in plan from an axial direction before the orifice member is press-fit into the plunger.

公开(公告)号：US09523413B2

公开(公告)日：2016-12-20

申请号：US14309036

申请日：2014-06-19

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuji Kurematsu ,  Yuichiro Ishikawa

IPC: F16H7/08 ,  F16H7/18

CPC classification number: F16H7/08 ,  F16H2007/0842 ,  F16H2007/0872 ,  F16H2007/0878 ,  F16H2007/0893 ,  F16H2007/185

Abstract: To provide a simple design chain tensioner that enables formation with fewer components and simplifies assembling process, and is capable of driving a chain stably, thereby reducing wear or occurrence of breakage and improve durability. The chain tensioner 100 includes a chain-drive guide shoe 130 pivotally supported on an arm 120 provided to a tensioner body 110. A bushing part 140 of the chain-drive guide shoe 130 includes a mating hole 141 to mate with a first pin portion 122 that extends from the distal end of the arm 120 to one lateral side, and a guide part 142 guided by a part of a second pin portion 123 that extends to the other lateral side, and a slit 143 wider than a portion of the arm 120 facing the chain-drive guide shoe 130 is provided between the mating hole 141 and the guide part 142.

Abstract translation: 提供一种简单的设计链张紧器，能够以更少的部件形成并简化组装过程，并且能够稳定地驱动链，从而减少磨损或发生断裂并提高耐久性。 链条张紧器100包括枢转地支撑在设置在张紧器主体110上的臂120上的链条驱动导向靴130.链条驱动导向靴130的衬套部分140包括与第一销部分122配合的配合孔141 从臂120的远端延伸到一个侧面，以及由延伸到另一侧面的第二销部123的一部分引导的引导部142以及比臂120的一部分宽的狭缝143 链条驱动导向板130设置在配合孔141与引导部142之间。

公开(公告)号：US12196334B2

公开(公告)日：2025-01-14

申请号：US18213357

申请日：2023-06-23

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuichiro Ishikawa ,  Shogo Matsushita

IPC: F16K27/02 ,  F16K15/04

Abstract: To provide a simple-structured check valve unit that allows for retention of a seat relief in an attachment part of a plunger bore, facilitates production without increasing components, and prevents deformation of the plunger. The check valve unit includes the seat relief and a cap member. The plunger has an outlet relief hole in the attachment part for communication between the inside and outside of the plunger. The cap member includes a cap top, an oil flow portion, and a skirt wall. The skirt wall includes a plurality of outwardly raised contact surfaces and a plurality of inwardly raised contact surfaces. The circumscribed circle of the outwardly raised contact surfaces has a larger radius than the inside radius of the attachment part, and the inscribed circle of the inwardly raised contact surfaces has a smaller radius than the outside radius of an engaging part of the seat relief.

公开(公告)号：US11708881B2

公开(公告)日：2023-07-25

申请号：US17501469

申请日：2021-10-14

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Haruhisa Ohta ,  Osamu Yoshida ,  Yuichiro Ishikawa

IPC: F16H7/08

CPC classification number: F16H7/0848 ,  F16H7/08 ,  F16H2007/0802 ,  F16H2007/0806 ,  F16H2007/0812 ,  F16H2007/0853 ,  F16H2007/0859

Abstract: To provide a tensioner capable of preventing slipping between a rack portion and ratchet pawls and securing a large backlash with a simple structure. The tensioner includes a ratchet rotatably mounted on a housing and having a front pawl and a rear pawl spaced apart in a front and rear direction on a side face positioned opposite the rack portion. The ratchet includes an additional pawl formed between the front pawl and the rear pawl in the front and rear direction on the side face positioned opposite the rack portion.

公开(公告)号：US20150024889A1

公开(公告)日：2015-01-22

申请号：US14320950

申请日：2014-07-01

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Masahiko Konno ,  Yuichiro Ishikawa ,  Yuji Kurematsu

IPC: F16H7/08 ,  F16H7/18

CPC classification number: F16H7/08 ,  F16H7/18 ,  F16H2007/0872 ,  F16H2007/0893 ,  F16H2007/185

Abstract: The present invention provides a highly durable chain guide which is simply configured, easy to assemble, and low in material cost, and in which vibration and tilting are suppressed, enabling reductions in noise, wear, breakage, and so on. A guide shoe includes a plate housing portion which is formed on a rear surface side of a travel guiding portion, and into which a plate can be inserted from below, and in at least one location of an attachment portion or a tensioner contact portion, the plate housing portion constitutes a plate end holding portion formed to be capable of supporting an end portion of the plate from below such that the plate can be inserted therein from a direction other than from below.

Abstract translation: 本发明提供一种结构简单，易于组装，材料成本低，抑制振动和倾斜的高度耐用的链条引导件，能够降低噪音，磨损，破损等。 引导靴包括形成在行进引导部分的后表面侧的板容纳部分，并且板可以从下方插入其中，并且在附接部分或张紧器接触部分的至少一个位置中， 板壳体部分构成板端保持部分，其形成为能够从下方支撑板的端部，使得板可以从除了从下方的方向插入其中。

公开(公告)号：US20140274513A1

公开(公告)日：2014-09-18

申请号：US14183607

申请日：2014-02-19

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuichiro Ishikawa ,  Masahiko Konno

IPC: F16H7/18

CPC classification number: F16H7/18

Abstract: A chain guide is provided which has a simple configuration, decreases the occupation space inside an engine room, while maintaining the necessary strength, rigidity, and durability, reduces the number of production steps and material waste, reduces the production cost, prevents vibrations and breaks during the use, and has high utility. A chain guide includes a guide shoe and a base member supporting the guide shoe along the chain running direction. A first insertion groove for receiving insertion of one end portion of the base member to fix the same and a second insertion groove for receiving insertion of the other end portion to fix the same are provided below the running guide portion 111 of the guide shoe.

Abstract translation: 提供了一种具有简单结构的链条引导件，减少了发动机室内的占用空间，同时保持了所需的强度，刚性和耐久性，减少了生产步骤和材料浪费，降低了生产成本，防止振动和断裂 在使用过程中，具有很高的实用性。 链条引导件包括导靴和沿着链条运行方向支撑导靴的底座部件。 在导靴的行进导向部111的下方设置有用于接收基部构件的一个端部插入以将其固定的第一插入槽和用于接收另一端部的固定的第二插入槽。

公开(公告)号：US20140213401A1

公开(公告)日：2014-07-31

申请号：US14147979

申请日：2014-01-06

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Masahiko Konno ,  Kaori Mori ,  Yuichiro Ishikawa ,  Yudai Takagi

IPC: F16H7/18

CPC classification number: F16H7/18 ,  F16H2007/0872

Abstract: By employing a simple configuration, a space required for engine room can be minimized while securing enough strength, rigidity, and durability, and a reduction in a material waste, manufacturing processes, and manufacturing cost can be accomplished while occurrence of a crack or breakage during use is prevented. A chain guide includes a guide shoe, a base member configured to reinforce the guide shoe, and attaching sections. The base member is formed by a bar made of a metal material.

Abstract translation: 通过采用简单的构造，可以在确保足够的强度，刚性和耐久性的同时最小化发动机室所需的空间，并且可以在发生裂纹或破裂期间实现材料浪费，制造工艺和制造成本的减少 防止使用。 链条导轨包括导靴，构造成加强导靴的基座构件和连接部分。 基部构件由金属材料制成的棒形成。

公开(公告)号：US12140227B2

公开(公告)日：2024-11-12

申请号：US18378340

申请日：2023-10-10

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuichiro Ishikawa

IPC: F16H7/08

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.

公开(公告)号：US20220196122A1

公开(公告)日：2022-06-23

申请号：US17501469

申请日：2021-10-14

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Haruhisa Ohta ,  Osamu Yoshida ,  Yuichiro Ishikawa

IPC: F16H7/08

Abstract: To provide a tensioner capable of preventing slipping between a rack portion and ratchet pawls and securing a large backlash with a simple structure. The tensioner includes a ratchet rotatably mounted on a housing and having a front pawl and a rear pawl spaced apart in a front and rear direction on a side face positioned opposite the rack portion. The ratchet includes an additional pawl formed between the front pawl and the rear pawl in the front and rear direction on the side face positioned opposite the rack portion.

公开(公告)号：US10077824B2

公开(公告)日：2018-09-18

申请号：US15167008

申请日：2016-05-27

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yuichiro Ishikawa ,  Kohei Kunimatsu

IPC: F16H7/22 ,  F16H7/08

CPC classification number: F16H7/08 ,  F16H7/0836 ,  F16H2007/0814 ,  F16H2007/0859 ,  F16H2007/0878 ,  F16H2007/0893

Abstract: To provide a simple-structured tensioner that can maintain good sliding properties of and hydraulic pressure for the plunger. The tensioner 10 includes a sleeve 30 inserted into a cylindrical body hole 21, a plunger 40 inserted in the sleeve 30 such as to be able to advance and retract along an axial direction of the sleeve 30, and biasing unit 60 for biasing the plunger 40 toward a front side. The sleeve 30 has, at a front end of a sleeve body 31 thereof, a flange part 33 extending radially outward.