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US 12,296,433 B2Granted
Sander clamping mechanism
AssigneeAllway Tools, Inc.
InventorYuan Fang Cheng
Life of this patent
Estimating the term…
Abstract
A sanding device includes a base, a plurality of protrusions extending from the base, a plurality of fasteners, a first one of the fasteners extending through the base, a clamping mechanism having openings through which the protrusions and the first one of the fasteners extend, and a spring arranged over the first one of the fasteners, between the base and the clamping mechanism. The clamping mechanism is releasably fixed in contact with the base in a first state and the clamping mechanism is spaced from the base in a second state while retained with respect to the base by at least a pair of the plurality of protrusions extending from the base to substantially prevent axial rotation of the clamping mechanism.
Claims16
A sanding device, comprising:
- a base having a first surface and a second surface that is mirror opposite the first surface and is delimited by a first sidewall, a second sidewall that is spaced from the first sidewall, a third sidewall that extends between the first sidewall and the second sidewall and a fourth sidewall that is spaced from the third sidewall and extends between the first sidewall and the second sidewall, the third sidewall and the fourth sidewall having a length that is greater than the first sidewall and the second sidewall;
- at least one pair of protrusions extending directly from the base that are spaced from each other and spaced inward from one of the first sidewall and the second sidewall between a center of the base and the one of the first sidewall and the second sidewall, the at least one pair of protrusions each having a first leg extending from the base and a second leg, spaced from the base and extending from and perpendicular to the first leg and the base in a direction toward the one of the first sidewall and the second sidewall;
- a plurality of fasteners, including a first one of the plurality of fasteners extending through the base;
- a clamping mechanism having a first opening, a second opening and a third opening with a first one of the protrusions of the at least one pair of protrusions extending through the first opening, the first one of the plurality of fasteners extending through the second opening and a second one of the protrusions of the at least one pair of protrusions extending through the third opening;
- and
- a spring arranged over the first one of the plurality of fasteners, between the base and the first clamping mechanism;
- wherein, in a first state, the clamping mechanism is releasably fixed in contact with the base by a second one of the plurality of fasteners that is secured to the first one of the plurality of fasteners, the first one of the protrusions of the at least one pair of protrusions extends through the first opening of the clamping mechanism, the second one of the protrusions of the pair of protrusions extends through the third opening of the clamping mechanism with the second leg of each of the protrusions of the pair of protrusions extending over the clamping mechanism, beyond the first opening and the third opening of the clamping mechanism, respectively, and, in a second state, the clamping mechanism is spaced away from the base when the second one of the plurality of fasteners is moved in a direction away from the base causing the spring to lift the clamping mechanism away from the base while the clamping mechanism is retained with respect to the base by the second arm of each of the protrusions of the at least one pair protrusions to substantially prevent axial rotation of the clamping mechanism with each of the protrusions of the at least one pair of protrusions continuously extending through the first opening and the third opening, respectively, in the first clamping mechanism in both the first state and the second state.
4 more elements
A method of assembling a sanding device, comprising the following steps:
- providing a sanding device that includes a base having a first surface and a second surface that is mirror opposite the first surface and is delimited by a first sidewall, a second sidewall that is spaced from the first sidewall, a third sidewall that extends between the first sidewall and the second sidewall and a fourth sidewall that is spaced from the third sidewall and extends between the first sidewall and the second sidewall, the third sidewall and the fourth sidewall having a length that is greater than the first sidewall and the second sidewall, a pair of protrusions extending directly from the base that are spaced from each other and spaced inward from one of the first sidewall and the second sidewall between a center of the base and one of the first sidewall and the second sidewall, the pair of protrusions each having a first leg extending from the base and a second leg, spaced from the base and extending from and perpendicular to the first leg and the base in a direction toward one of the first sidewall and the second sidewall;
- a plurality of fasteners, including a first one of the plurality of fasteners extending through the base;
- a clamping mechanism having a first opening, a second opening and a third opening and a spring;
- arranging the first one of the plurality of fasteners through an opening in the base inward from one of the first sidewall and the second sidewall of the base such that the first one of the plurality fasteners extends above the base in a same direction the pair of protrusions;
- arranging the spring over the first one of the plurality of fasteners;
- orientating the clamping mechanism such a first one of the protrusions of the pair of protrusions extends through the first opening of the clamping mechanism, the first one of the plurality of fasteners extends through the second opening of the clamping mechanism, and a second one of the protrusions of the pair of protrusions extends through the third opening of the clamping mechanism;
- and releasably fixing the clamping mechanism in contact with the base in a first state with a second one of the plurality of fasteners interacting with the first one of the plurality of fasteners and the first leg and the second leg of each of the protrusions of the pair of protrusions extend through the clamping mechanism with the second arm of each of the protrusions spaced from the clamping mechanism and extend over the clamping mechanism, and, in a second state, the clamping mechanism being spaced away from the base while the clamping mechanism is retained with respect to the base by the second leg of the first one of protrusions of the pair of protrusions and the second leg of the second one of the protrusions of the pair of protrusions to substantially prevent axial rotation of the clamping mechanism with each of the first one of the protrusions and the second one of the protrusions of the pair of protrusions continuously extending through the first openings and the third one openings, respectively, in both the first state and the second state.
4 more elements
Dependencies are inferred from the claim text.