Vibration-isolating apparatus for a centrifuge

• US 4,079,882 A
• Filed: 03/18/1977
• Issued: 03/21/1978
• Est. Priority Date: 03/18/1977
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Kubota Seisakusho
• Original Assignee: Kabushiki Kaisha Kubota Seisakusho
• Inventors: Hara, Minoru, Mizuyoshi, Ryutaro
• Primary Examiner(s): Krizmanich, George H.
• Application Number:
  US05/779,232
• Time in Patent Office: 368 Days
• Field of Search: 233/24, 233/1 C, 248/9, 248/15, 248/18, 248/21, 267/180, 267/166, 267/61-71, 267/148, 68/23.1, 68/23.3
• US Class Current: 494/60
• CPC Class Codes: B04B 5/0421 pivotably mounted
• CPC Class Codes: B04B 9/12 Suspending rotary bowls ; Bearings; Packings for bearings
• CPC Class Codes: F16F 15/06 with metal springs with rubber springs also F16F15/08
• CPC Class Codes: F16F 3/02 with springs made of steel or of other material having low internal friction

Abstract

A vibration-isolating apparatus for a centrifuge comprising a rotor mounted by means of at least one coil spring in a casing, wherein to dampen vibrations, a flexible belt is wound longitudinally on the coil spring around both ends thereof in a plurality of turns. The belt can be clamped to the ends of the coil spring.

Claims

1. A vibration-isolating apparatus for a centrifuge having a casing, a rotary body including a rotor and an electric motor for driving the rotor, and at least one coil spring dampingly supporting the rotary body in the casing, the improvement comprising a flexible belt wound longitudinally on the coil spring and around both ends thereof, said flexible belt being wound in a plurality of layers.

2. An apparatus as claimed in claim 1 wherein the layers are aligned on one another.

3. An apparatus as claimed in claim 1 wherein the layers are spirally wound.

4. An apparatus as claimed in claim 1 wherein said belt has at least one outer surface with a relatively high coefficient of friction for frictional contact between said layers.

5. An apparatus as claimed in claim 1 comprising seat members at the ends of the coil spring, said belt being wound on the outer surface of the seat members.

6. An apparatus as claimed in claim 5 comprising means clamping the belt against said seat members.

7. An apparatus as claimed in claim 1 wherein said layers of said belt extend across and over both end surfaces of said spring to completely surround the spring.