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US 9,956,822 B1Granted
Wheel assembly for luggage
AssigneeOlympia International, Inc.
InventorChris Yu
Life of this patent
Estimating the term…
Abstract
A wheel assembly includes a first body having a first end portion and a second end portion; a second body having a third end portion and a fourth end portion, the third end portion of the second body rotatably coupled to the second end portion of the first body via a first pivot pin; a wheel rotatably coupled to the second body via a second pivot pin; a rod having a fifth end portion and a sixth end portion, the fifth end portion coupled with the first body via a third pivot pin; a first coiled spring having a first end contacting the first body and a second end contacting the third end portion; and a second coiled spring having a third end, the rod inserted into the second coiled spring via the third end, and a fourth end contacting the fourth end portion.
Claims16
A wheel assembly comprising:
- a first body having two separated lugs extending from a side of the first body, each of the lugs having a hole or through hole;
- a second body rotatably coupled with the first body such that an angle between the first body and the second body changes according to movement of the second body with respect to the first body;
- a wheel rotatably coupled to the second body;
- and
- a rod rotatably coupled with the first body, the rod having a through hole formed at a first end portion that is located between the lugs, two protrusions formed at or near the first end portion of the rod, and the rod further having a hole formed at a second end portion to receive a fastening means,
- wherein:
- the wheel is coupled to the second body via a first pivot pin;
- the second body is coupled with the first body via a second pivot pin;
- the rod is coupled with the first body via a third pivot pin that passes through the holes or through holes of the lugs and the through hole of the rod;
- the second body has a receiving portion formed at one end portion;
- a through hole is formed at the receiving portion;
- a first end of a first coiled spring is positioned at the receiving portion;
- the rod is inserted into a second end of the first coiled spring such that the second end of the first coiled spring contacts the two protrusions;
- the fastening means, passing through the through hole of the receiving portion of the second body and the first coiled spring, is inserted into the hole of the rod;
- and
- a portion of the fastening means, which is located within the first coiled spring, is exposed between the hole of the rod and the through hole of the receiving portion the second body, allowing the portion of the fastening means to move up and down through the through hole of the receiving portion of the second body.
13 more elements
A wheel assembly comprising:
- a first body having a first end portion and a second end portion;
- a second body having a third end portion and a fourth end portion at which a through hole is formed, the third end portion of the second body rotatably coupled to the second end portion of the first body via a first pivot pin;
- a wheel rotatably coupled to the second body via a second pivot pin;
- a rod having a fifth end portion and a sixth end portion at which a hole is formed, the fifth end portion coupled with the first body via a third pivot pin;
- a first coiled spring having a first end contacting the first body and a second end contacting the third end portion of the second body;
- and
- a second coiled spring having a third end, the rod inserted into the second coiled spring via the third end, and a fourth end contacting the fourth end portion of the second body,
- wherein:
- an angle between the first body and the second body changes according to movement of the second body with respect to the first body, the angle decreased when at least one of the first coiled spring or the second coiled spring is compressed;
- a fastening means passing through the through hole of the second body and inserted into the hole of the rod;
- and
- a portion of the fastening means, which is located within the second coiled spring, is exposed between the hole of the rod and the through hole of the second body.
9 more elements
A luggage container comprising:
- a wheel holder coupled to a side of the luggage container;
- and
- a wheel assembly coupled to the wheel holder,
- wherein the wheel assembly comprises:
- a first body having a first end portion and a second end portion;
- a second body having a third end portion and a fourth end portion at which a through hole is formed, the third end portion of the second body rotatably coupled to the second end portion of the first body via a first pivot pin;
- a wheel rotatably coupled to the second body via a second pivot pin;
- a rod having a fifth end portion and a sixth end portion at which a hole is formed, the fifth end portion coupled with the first body via a third pivot pin;
- a first coiled spring having a first end contacting the first body and a second end contacting the third end portion of the second body;
- and
- a second coiled spring having a third end, the rod inserted into the second coiled spring via the third end, and a fourth end contacting the fourth end portion of the second body,
- wherein:
- an angle between the first body and the second body changes according to movement of the second body with respect to the first body, the angle decreased when at least one of the first coiled spring or the second coiled spring is compressed;
- a fastening means passing through the through hole of the second body and inserted into the hole of the rod;
- and
- a portion of the fastening means, which is located within the second coiled spring, is exposed between the hole of the rod and the through hole of the second body.
13 more elements
Dependencies are inferred from the claim text.