ANTIVIBRATION BODY, VIBRATION PROOFED SUPPORTING DEVICE, AND COMPRESSOR USING THE SAME

摘要

PROBLEM TO BE SOLVED: To solve the problem in a conventional vibration proofed supporting device mounted on a supporting rod in which a rubber cushion isolator of a hollow anti- vibration body is projected from a supporting platform, wherein since the contact part of the supporting rod and the rubber vibration isolator is close to the part where the leg part of the compressor of the vibration generator is fixed to the rubber vibration isolator, vibrations transmitted from the leg part is apt to propagate to the supporting platform through the supporting rod from the contact part. SOLUTION: An outer peripheral groove 3b in which a leg part 1a of a compressor 1 is fitted, is provided to the upper end 3a of the rubber vibration isolator 3. The upper end 3a of the rubber vibration isolator 3 has an inner diameter in which sufficient clearance to the outer diameter of supporting rod 2a is secured so as not to come in contact with the supporting rod 2a by deformation of the rubber vibration isolator 3. By providing an attenuation characteristic to the midsection 3e and a projection 3d brought into intimate contact with the supporting rod 2a at the lower end 3c of the rubber vibration isolator 3 disposed sufficiently apart from the outer peripheral groove 3b, a vibration proofed supporting device can alleviate the propagation of vibrations of the compressor 1 to the supporting platform 2.