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Chain guide

A technology for chains and guides, which is applied to chain elements, belts/chains/gears, engine elements, etc., and can solve problems such as the decline in chain lubrication characteristics

Pending Publication Date: 2021-09-10
TSUBAKIMOTO CHAIN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Since the lubrication of the chain in the chain drive system is not performed by supplying oil directly to the chain, it may cause a decrease in the lubricating properties of the chain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as Figure 1 to Figure 4 As shown, the chain guide 100 according to the first embodiment of the present invention is configured to be swingably mounted to an engine block (not shown) with the mounting screw 140 as a swing shaft, A movable guide that applies appropriate tension to the chain while being linked by a device (not shown).

[0048] The chain guide 100 includes a guide block 110 that slides and guides a moving chain, and a base member 115 that supports the guide block 110 along the longitudinal direction of the guide (chain moving direction). The guide block 110 and the base member 115 are formed of a synthetic resin material or the like.

[0049] The guide block 110 has a chain running surface (sliding surface) 111 extending in the guide length direction, and guide portions 112 protruding upward are vertically provided on both end edges of the chain running surface 111 in the guide width direction.

[0050] The base member 115 is bent along the longitud...

Embodiment 2

[0061] The chain guide according to the second embodiment of the present invention has substantially the same configuration as the chain guide 100 according to the above-mentioned first embodiment except for the configuration of the fuel injection passage. The chain guide according to the present embodiment is configured as a movable guide that is swingably mounted on the engine block by mounting screws, and is coupled with a hydraulic tensioner to apply an appropriate tension to the chain. Such as Figure 6 to Figure 9 As shown, the chain guide 200 includes a guide block 110 that slides and guides a moving chain, and a base member 215 that supports the guide block 110 along the longitudinal direction of the guide (chain moving direction).

[0062] The base member 215 is bent along the longitudinal direction of the guide, has a mounting portion 220 near one end in the longitudinal direction of the guide for mounting to the engine block, and has a hydraulic tensioner near the o...

Embodiment 3

[0067] The chain guide according to the third embodiment of the present invention has substantially the same configuration as the chain guide 100 according to the above-mentioned first embodiment except for the configuration of the fuel injection passage. The chain guide according to the present embodiment is configured as a movable guide which is swingably mounted on the engine block by mounting screws, and is coupled with a hydraulic tensioner to apply an appropriate tension to the chain. Such as Figure 11 and Figure 12 As shown, the chain guide 300 includes a guide block 110 that slides and guides a moving chain, and a base member 315 that supports the guide block 110 along the longitudinal direction of the guide (chain moving direction).

[0068] The base member 315 is formed by bending along the longitudinal direction of the guide, has a mounting portion 320 near one end in the longitudinal direction of the guide for mounting to the engine block, and has a hydraulic te...

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PUM

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Abstract

The invention provides a chain guide capable of improving the functionality of a chain transmission system. Specifically, the chain guide (100) according to the present invention is attached to an engine block (150) by an attachment screw (140) and slidably guides a moving chain, and is configured so as to be provided with an attachment part (120) provided with a shaft hole (121) through which the attachment screw (140) passes, and to have an oil injection passage (130) for injecting lubricating oil supplied to the shaft hole (121) at a predetermined pressure toward the chain.

Description

technical field [0001] The present invention relates to, for example, a chain guide provided in a chain drive system incorporated in a timing system for an automobile engine and guiding a moving chain. Background technique [0002] Conventionally, in order to stabilize and properly maintain the tension of the chain moving between the sprockets, a chain guide having a guide surface for slidingly guiding the moving chain and a main body supporting the guide surface along the chain moving direction is generally used. [0003] For example, if Figure 19 As shown, there is a known chain transmission system. The chain CH is wound without joints between the driving sprocket S1 of the crankshaft installed in the engine compartment and a pair of driven sprockets S2 installed on the camshaft, and is guided by the chain. The components guide the chain CH. [0004] In this known chain transmission system, on the outside of the slack side of the chain CH, a sliding contact with the cycl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H7/06F16H7/18F16H57/028F16H57/04
CPCF16H7/18F16H7/06F16H57/0456F16H57/028F16H57/05F16N2210/33F16N7/14F16N7/24F01M9/10F02B67/06F01M1/08F02F2007/0041F01M11/02F01L1/022F16H57/042
Inventor 下坂晃一
Owner TSUBAKIMOTO CHAIN CO
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