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Power transmission device

A transmission device and switching device technology, which is applied in the direction of transmission device, transmission device control, and components with teeth, etc., can solve problems such as interference operation and complex structure, and achieve the effect of improving reliability and reducing costs

Inactive Publication Date: 2012-04-04
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In addition, the structure of connecting the forward and backward switching lever and the two operation cables is complicated, and the cost involved requires a simplified structure
[0015] Furthermore, when the forward and backward switch lever is in the forward position or the reverse position, one of the operating cables is in a slack state, which may interfere with the operation

Method used

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Examples

Experimental program
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Embodiment Construction

[0051] exist figure 1 In the small snow blower 10 shown, the following units are installed on the chassis 11: engine 12; speed change device 13, which is used to transmit the power of the engine 12 and switch the forward and backward movement of the small snow blower 10; and the output side of the speed change device 13 Connected left crawler-type travel unit 14 and right crawler-type travel unit 16; left swing pipe 17 and right swing pipe 18, which are arranged on the chassis 11 so as to be able to swing; attached to the front ends of the swing pipes 17, 18 for snow removal and a left handle 22 and a right handle 23 attached to the rear ends of the swing pipes 17,18. Power from the engine 12 is transmitted to the left crawler unit 14 and the right crawler unit 16 via a transmission 25 . The transmission 13 is covered by a cover 26 .

[0052] The engine 12 is a vertical engine with a vertically oriented crankshaft 27 .

[0053] The left crawler type travel unit 14 has the d...

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PUM

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Abstract

A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft (121) from a drive source (12) via the power transmission device (25). To cause positive rotation of the drive shaft, only the positive rotation belt (52) is tensed by the belt switching means (90), and rotation fromthe positive rotation drive pulley (51a) is transmitted to the drive shaft (121) via the positive rotation shaft (61). To cause negative rotation of the drive shaft, only the negative rotation belt (53) is tensed by the belt switching means, and rotation from the negative rotation drive pulley (51b) is transmitted to the drive shaft (121) via the negative rotation shaft (62).

Description

technical field [0001] The present invention relates to a transmission in which the direction of rotation of a drive shaft is switched between forward rotation and reverse rotation when power is transmitted from an engine to the drive shaft. Background technique [0002] For example, a transmission is known from Japanese Patent Application Laid-Open No. 63-223207 (JP 63-223207 A) in which a transmission is coupled to an engine via a travel clutch. [0003] As disclosed in JP 63-223207 A, a driving pulley is attached to the output shaft of an engine installed in a small snow blower, a driven pulley is attached to an input shaft of a transmission, and an endless V-belt is hung on the driving pulley and around the driven pulley. [0004] A forward clutch is provided next to the V-belt to engage and disengage the power transmitted from the engine to the transmission. The travel clutch has rollers that can push against the V-belt. [0005] The endless V-belt hangs around the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/10F16H61/22
Inventor 小东贤太石川智明饭野启司木村友一广瀬信之
Owner HONDA MOTOR CO LTD