JP2015169014A5 - - Google Patents

Description

Since the conventional excitation shaft cover 42 shown in FIG. 7 is attached to the housing 2 a of the oscillator 2, it vibrates with the vibration of the oscillator 2. For this reason, the excitation shaft cover 42 is required to have high rigidity and must be firmly fixed to the housing 2a. The excitation shaft cover 42 is worn by contact with the inner cover 21 of the belt cover 20 and needs to be replaced periodically. As described above, the excitation shaft cover 42 has high rigidity and the housing 2a. Therefore, there is a problem that replacement is not easy. In order to prevent the opening 21b of the inner cover 21 from being exposed even if the vibrating body 2 vibrates, the excitation shaft cover 42 has a width in the radial direction in consideration of vibration from the opening 21b of the inner cover 21. There is a problem that a large diameter must be ensured by tx, and the excitation shaft cover 42 becomes large.

In this configuration, when the belt 13 needs to be replaced, the outer cover 22 is removed from the inner cover 21 and the engine base 3 by removing the bolts 28 and 30. Then, put the rolling the front end portion of the pressure plate 1 on the ground, depressing the handle 16 in a state where the float rear, by anti-vibration rubber 7 flexes attached between the rolling pressure plate 1 and the engine base 3, The distance between the driving pulley 11 and the driven pulley 12 is shortened, the belt 13 is slackened, and the belt can be removed from the pulleys 11 and 12. Also, when a new belt 13 is attached, it is hung around the pulleys 11 and 12 in a posture in which the rear portion of the rolling plate 1 is floated as described above. As described above, when the belt 13 is replaced, the belt 13 can be replaced simply by attaching and detaching the outer cover 22 while the inner cover 21 is attached to the engine base 3.