US 12,296,433 B2
Sander clamping mechanism
Yuan Fang Cheng, Syosset, NY (US)
Assigned to ALLWAY TOOLS, INC., West Babylon, NY (US)
Filed by Allway Tools, Inc., West Babylon, NY (US)
Filed on Feb. 16, 2022, as Appl. No. 17/651,385.
Claims priority of provisional application 63/200,137, filed on Feb. 16, 2021.
Prior Publication US 2022/0258307 A1, Aug. 18, 2022
Int. Cl. B24D 15/02 (2006.01)
CPC B24D 15/023 (2013.01) 16 Claims
OG exemplary drawing
 
1. 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.