IP Library Granted Patent US 12,350,539
Granted Patent B2
US 12,350,539 · App. 18/325,513 · Granted Jul 8, 2025

Weight loading apparatus for foot and leg exercises

Inventor: Remy Sasano (Osaka, JP)
A63B21/065A63B21/0728A63B21/4013A63B21/4015A63B23/08A63B23/10A63B2225/09
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Quick Facts
Patent No.
US 12,350,539
App. No.
18/325,513
Granted
Jul 8, 2025
Kind
B2
Abstract

A weight loading apparatus is provided, comprising a base, a fastener unit, at least one rod, and a locking unit. The base is configured to be placed under a user's foot or footwear. The fastener unit is joined to the base and configured to secure the base to the foot. The at least one rod is joined to the base and configured to be traversed by a perforated weight plate. The locking unit is configured to removably lock the weight plate to the rod.

Claims (16)

1. A weight loading apparatus, comprising:

a base configured to be placed under a user's foot or footwear, the base having an upper surface and a lower surface, the upper surface being configured to face the foot of the user when the apparatus is worn by the user;

a pair of side extensions extending upward from the base, each extension having a first end joined to the base and a second end located above a foot rest of the base, such that when the apparatus is worn, the second ends are located at opposite sides of an ankle of the user, each of the second ends forming a respective hub;

a fastener unit joined to the base and configured to secure the base to the foot;

two separate rods, each of the separate rods being joined the second end of the respective hub and extending outward from the respective hub; and

two separate locking units configured to removably lock respective weight plates onto the separate rods.

2. The apparatus of claim 1 , wherein the fastener unit comprises a strap.

3. The apparatus of claim 2 , wherein the strap comprises a ratchet strap.

4. The apparatus of claim 1 , wherein the rods are fixedly joined to the respective hubs.

5. The apparatus of claim 1 , wherein the rods are removably joined to the respective hubs.

6. The apparatus of claim 1 , wherein:

the rods are hollow and have openings on hub sides thereof;

the apparatus comprises padded caps configured to be inserted into the openings, so that padding of the padded caps faces inwardly from the respective rod.

7. The apparatus of claim 1 , wherein:

each of the separate rods is hollow and has first threading in an inner surface thereof;

each of the locking units comprises a screw having second threading matching the first threading and a head larger than a perforation of a respective weight plate, such that the screw is configured to enter the hollow rod and lock the weight plate between the respective hub and the head of the screw.

Continuity (3)
Provisional Application 63346917 · May 30, 2022
Provisional Application 63389925 · Jul 17, 2022
Related Publication 20230381571A1 · Nov 30, 2023
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