Vibration attenuating device for a weighing scale
AssigneeMettler-Toledo AG
InventorChristiaan Neeleman
Life of this patent
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Abstract
A vibration attenuation device serves to damp in a two-stage manner with a non-linear spring characteristic a pair of relatively movable components, such as the weighing pan and the weighing pan carrier of a scale. First and second stage resilient compressible means extend different distances from one side of a base member for successive activation by the components as they are displaced together, thereby to produce a vibration behavior that approximates the inherent frequency of the weighing scale.
Claims12
A vibration attenuating device for dampening the vibrations between a pair of components of a weighing scale, comprising:
- (a) a body member (2;
- 12;
- 22;
- 32;
- 42) adapted for arrangement between said components, said body member including a base portion (2a;
- 12a;
- 22a;
- 32a;
- 42a) spaced from one of said components;
- (b) at least one first resilient compressible attenuating portion (2c;
- 12c;
- 22c;
- 32c;
- 42c) integral with said base portion and extending toward said one component;
- and
- (c) at least one second resilient compressible attenuating portion (2d;
- 12c;
- 22d;
- 32d;
- 42d) integral with said base portion and extending toward said one component;
- (d) said first attenuating portion having a greater effective dimension in the direction of said one component relative to said base portion than said second attenuating portion, whereby upon progressive displacement of said components toward each other, only said first attenuating portion is compressed, and upon further displacement of said components toward each other, both of said first and second attenuating portions are compressed, thereby to afford a nonlinear spring characteristic for dampening the vibrations between said components.
Vibration attenuating means for dampening the vibrational forces between a pair of relatively movable scale components, comprising:
- (a) a body member (2;
- 12;
- 22;
- 32;
- 42) adapted for arrangement between said components, said body member including a base portion (2a, 12a;
- 22a;
- 32a;
- 42a) having a first face (2b;
- 12b;
- 22b;
- 32b;
- 42b) spaced from and generally parallel with the adjacent face of one of said components;
- (b) at least one resilient compressible first-stage attenuating portion (2c;
- 12c;
- 22c;
- 32c;
- 42c) integral with said base portion and extending from said first face toward said one component;
- (c) at least one resilient compressible second-stage attenuating portion (2d;
- 12d;
- 22d;
- 32d;
- 42d) integral with said base portion and extending from said first face toward said component;
- (d) the effective length of said first attenuating portion relative to said first face being greater than the effective length of said second attenuating portion, thereby to define a first pair of compressible attenuating portions operable to afford a two-stage attenuating effect with a non-linear spring characteristic as said scale components are progressively displaced toward each other.
Dependencies are inferred from the claim text.