Chain guide

Abstract

The invention provides a chain guide capable of reducing a space the guide occupies in an engine room while maintaining necessary strength, rigidity, and durability with a simple configuration, reducing manufacturing man-hour and a waste of a material, preventing an increase in vibration and noise during use without necessity of forming a structure for allowing an error, and reducing a maintenance work load. A chain guide includes a guide shoe and a base member configured to support the guide shoe. The base member includes a base attaching section extending perpendicularly to a chain traveling direction. The guide shoe includes a guide shoe attaching section extending perpendicularly to the chain traveling direction in a position spaced apart from the base attaching section in the chain traveling direction.

Description

technical field [0001] The invention relates to a chain guide, which comprises: a guide block, which slides and guides a moving chain; and a base component, which supports the guide block along the moving direction of the chain. Background technique [0002] Conventionally, in order to stabilize and properly maintain the tension of the chain moving between the sprockets, a chain guide provided with a guide block for slidingly guiding the moving chain is generally used. [0003] For example, if Figure 5 As shown, the following timing system is known, which is a transmission chain CH such as a roller chain that performs seamless rotation between sprockets S1 and S2 of a crankshaft and a camshaft respectively provided in an engine room. The timing system of the moving engine, the timing chain CH rotates seamlessly between the driving sprocket S1 of the crankshaft installed in the engine room E and a pair of driven sprockets S2 installed on the camshaft, and the swing guide G ...

AI Technical Summary

Problems solved by technology

[0018] When fixing by passing bolts or the like through long holes that allow slight errors, the difference in expansion and contraction between the chain guide and the engine block due to temperature changes during use, or changes in the tension of the chain, and vibrations in the chain The slight deformation of the guide and the small movement of the fixing parts such as bolts in the long hole, so when used for a long time, it becomes the main cause of the loosening of the fixing and the increase of vibration and noise. In the worst case, there is a chain guide. The problem of parts falling off in the engine compartment, in order to alleviate this problem, the frequency of maintenance work needs to be increased

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