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US 12,752,689 B2Granted
Storage device
AssigneeMoriroku Kabushiki Kaisha
InventorTakafumi Wakabayashi
Life of this patent
Estimating the term…
Abstract
A storage device includes a support shaft for supporting the lid to the container such that the lid can open and close relative to the container, a torsion spring for biasing the lid in a direction to open the lid, and a cylindrical cover that surrounds an outer peripheral surface of a coil of the torsion spring. The torsion spring includes a first arm and a second arm. The second arm can be engaged with the container when the container, the lid and the support shaft are in the assembled state and the first arm is engaged with the lid. The cover has clearance (cutout) that allows the second arm to pass without interference.
Claims5
A storage device comprising:
- a container;
- a lid for opening and closing an opening of the container;
- a support shaft for supporting the lid with respect to the container such that the lid can open and close relative to the container;
- a torsion spring that includes a coil located along an axial line of the support shaft, a first arm extending from one winding end of the coil to a first engagement portion of the lid and can engage with the lid, and a second arm extending from an opposite winding end of the coil to the container and can engage with a second engagement portion of the container when the container, the lid and the support shaft are in an assembled state and the first arm is engaged with the first engagement portion of the lid, the torsion spring being configured to bias the lid in a direction to open the lid;
- and
- a cylindrical cover formed integrally with the container such that the cylindrical cover can surround an outer peripheral surface of the coil,
- the first arm including a first engaging portion such that the first engaging portion engages with the first engagement portion,
- the second arm extending outward in a radial direction beyond the cylindrical cover, and having an engaging portion at an outer end of the second arm in the radial direction such that the second engaging portion engages with the second engagement portion of the container, and
- the cylindrical cover having a clearance that allows the second arm to pass without interference,
- wherein the first engaging portion and the second engaging portion are movable between a first state, a second state, and a third state,
- the first state being when the first engaging portion engages with the first engagement portion and the second engaging portion does not engage with the second engagement portion, a position of the second engaging portion in the first state is referred to as a free position,
- the second state being when the second engaging portion is inclined from the free position in a direction opposite to the second engagement portion to engage the second engaging portion with the second engagement portion,
- the third state being when the second engaging portion in the second state engages with the second engagement portion,
- a size of the clearance is set such that the second arm does not hit the cylindrical cover when the second engaging portion moves from the first state to the third state through the second state.
11 more elements
A storage device comprising:
- a container:
- a lid for opening and closing an opening of the container;
- a support shaft for supporting the lid with respect to the container such that the lid can open and close relative to the container;
- a torsion spring that includes a coil located along an axial line of the support shaft, a first arm extending from one winding end of the coil to the lid and can engage with the lid, and a second arm extending from an opposite winding end of the coil to the container and can engage with the container when the container, the lid and the support shaft are in an assembled state and the first arm is engaged with the lid, the torsion spring being configured to bias the lid in a direction to close the lid or in a direction to open the lid;
- and
- a cylindrical cover formed integrally with the container such that the cylindrical cover can surround an outer peripheral surface of the coil,
- the second arm extending outward in a radial direction beyond the cylindrical cover, and having an engaging portion at an outer end of the second arm in the radial direction such that the engaging portion engages with an engagement portion of the container, and
- the cylindrical cover having a clearance that allows the second arm to pass without interference,
- wherein the second arm has a protrusion at a tip thereof,
- the container has a recess that receives the protrusion therein, and
- the recess is located on a turning locus of the protrusion in a direction in which the engagement portion receives a biasing force from the engaging portion.
8 more elements
Dependencies are inferred from the claim text.