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Tensioner

一种张紧装置、柱塞的技术，应用在传动装置、皮带/链条/齿轮、机器/发动机等方向，能够解决柱塞520结构复杂、组装复杂等问题，达到结构简单、简化结构、加长弹簧空间的效果

Active Publication Date: 2019-07-12
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In such a tensioner 510, there are problems that the structure of the plunger 520 is complicated, machining accuracy is required, and assembly is also complicated.

Method used

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Examples

Experimental program
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Embodiment Construction

[0060] Hereinafter, the tensioner according to the first embodiment of the present invention will be described based on the drawings.

[0061] First of all, the tensioning device 110 is a device mounted on a chain transmission device used in a timing system of an automobile engine, etc., and as Figure 20 As shown, in order to be mounted on the engine block (not shown), the slack side of the drive chain CH that is wound around the plurality of sprockets S1 to S3 is given an appropriate tension through the tension rod G, so as to suppress the occurrence of vibrating device.

[0062] like figure 1 As shown, the tensioner 110 includes: a plunger 120 having a plunger hole 122 opening to the rear side; a housing 130 having a plunger accommodating hole 131 that accommodates the plunger 120 and opening to the front side; a check valve 140, It is arranged on the bottom side of the casing 130; the overflow mechanism 150 makes the oil in the oil pressure chamber 111 overflow to the o...

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PUM

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Abstract

To provide a tensioner that has a simple structure and is easy to assemble, and is configured to smoothly relieve pressure during oil release with reduced flow resistance so that the oil pressure in an oil pressure chamber is kept stable in a favorable manner. A relief valve unit (151) includes a cap member that fits with a seat member (152) to retain a stopper member (155) inside the seat member.An external relief hole (122), which causes a relief-side space (126) in a plunger hole (122) to communicate with the outside of a plunger (120), opens radially in an outer circumferential surface ofthe plunger (120).

Description

technical field [0001] The present invention relates to tensioning devices that impart proper tension to moving chains, belts, and the like. Background technique [0002] Conventionally, a tensioning device is generally used to appropriately maintain the tension of a chain or the like. For example, in a chain guide mechanism for slidingly guiding a transmission chain such as a roller chain by a tensioning rod, the roller is known. A transmission chain such as a sub-chain is wound without joints between the sprockets of the crankshaft and the camshaft, which are installed in the engine compartment, respectively. In order to properly maintain the tension of the chain, etc., the tensioning rod is energized by a tensioning device. [0003] like Figure 18 As shown, as a well-known tensioner used for such a chain guide mechanism, there is known a tensioner 510 including a plunger 520 having a plunger hole 522 opening to the rear side, and a case 530 having a housing 530 A plunge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/08
CPCF16H7/08F16H2007/0814F16H7/0829F16H2007/0806F16H2007/0812F16H2007/0863F02B67/06
Inventor 岩崎良考渡边将成吉田修榑松勇二
Owner TSUBAKIMOTO CHAIN CO
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