Portable power tool with vibration-proof member

Details Portable power tool with vibration-proof member Portable power tool with vibration-proof member

1998-03-13

1999-11-02

Freay, Charles G.

Pumps

Ambulant, body supported, or with carrying handle

417359, 417363, F04B 1709

Patent

active

059758627

ABSTRACT:
A power source and a human contacting portion of a portable power tool, with a vibration-proof member and a spacer placed between them, are tightened by fastening and connecting means in the direction approaching each other. The spacer serves to limit compressive power of the vibration proof member which acts between the power source and human contacting portion within effective vibration-proof range of the vibration-proof member by utilizing the fastening and connecting means, This does not cause the vibration absorbing effect of the vibration-proof member to be lost. In addition, there is no need to check the fastening degree achieved by the fastening and connecting means, thus allowing easy attachment of the vibration-proof member thereto. Alternatively, vibration-proof members may be placed between the power source side and the working member side without spacers if the vibration proof members support the power source apart from the working member. To facilitate this construction a universal power transmission, such as a flexible shaft or coupling, is used to transmit rotation power from the power source to the working member in spite of a change in the relative positional relation of the power source to the working member, caused by the vibration-proof member.

REFERENCES:
patent: 4223419 (1980-09-01), Sato et al.
patent: 4674146 (1987-06-01), Tuggle et al.
patent: 5035586 (1991-07-01), Sadler et al.
patent: 5221192 (1993-06-01), Heflin et al.
patent: 5269665 (1993-12-01), Sadler et al.

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