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Tension rod with improved maintenance

一种张紧杆、维护性的技术，应用在阀细节、皮带/链条/齿轮、机械设备等方向，达到提高作业性的效果

Inactive Publication Date: 2009-07-15
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is the following problem: when removing the chain 25, the engine must be temporarily removed from the vehicle body and the tensioner 26 must be removed, or the plunger 26a and the tension rod 27 must be continuously pushed by hand to make the chain 25 slack, to remove the chain 25

Method used

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  • Tension rod with improved maintenance
  • Tension rod with improved maintenance
  • Tension rod with improved maintenance

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] refer to Figure 1 ~ Figure 4 Examples of the present invention will be described. figure 1 It is an explanatory diagram of the timing chain drive system, figure 2 is the side view of the tension rod, image 3 yes figure 2 X-X direction sectional view, Figure 4 It is a perspective view of the front cover of the chain room.

[0030] like figure 1 As shown, in the case of a DOHC engine, the timing chain drive system is provided in a timing chain chamber, ie, a chain chamber 2, formed by a chain cover 1 constituting a part of the engine body. The timing chain drive system includes: cam sprockets (drive side sprocket) 3, 3 fixed on the camshaft, crank sprocket (driven side sprocket) 4 fixed on the crankshaft, and The chain 5 on the wheels 3, 3, 4 and circularly moves.

[0031] In order to give appropriate tension to the circulating chain 5, on the rear inner wall of the chain cover 1 forming the chain chamber 2 or on the engine main body, a tension member is swi...

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PUM

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Abstract

In an internal combustion engine having a timing transmission, tension in the timing chain is released for removal of the chain by pushing a tensioner-urged movable guide away from the chain and holding the guide in a tension-releasing position by a fixing jig inserted through a hole in the timing chain cover while the timing chain cover is still connected to the engine block by partially loosened fasteners.

Description

technical field [0001] The present invention relates to a tension rod used in a transmission that transmits power from a driving side to a driven side through a driving side sprocket, a driven side sprocket, and a chain that is wound around these sprockets and circulates. In particular, it relates to a tension rod with improved maintainability, which can stop the swing of the tension rod at the position reversed to the maximum against the force of the urging mechanism, so that the chain can be slackened during maintenance. And easy to remove. Background technique [0002] Internal combustion engines, such as those of automobiles, in the case of SOHC (Single Overhead Camshaft) engines, DOHC (Double Overhead Camshaft) engines, etc., have a timing chain drive system that drives the crankshaft and camshaft synchronously. A timing chain transmission system, which is a kind of transmission device that transmits power from the driving side to the driven side, in the case of, for e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/08
CPCF01L1/053F16H2007/0842F01L2103/01F01L1/02F01L1/024F01L2303/01
Inventor 横山正则
Owner TSUBAKIMOTO CHAIN CO