US 12,196,029 B2Granted

Hinge device

OwnerTadashi Iijima, Kazuma Moriinventors

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Abstract

A hinge device 1 comprises a damper hinge 2 and a gravity hinge 3. The gravity hinge 3 comprises a rotational force imparting mechanism 70 for converting gravity of the door 6 to rotational force to a closing direction when the door 6 rotates to the closing direction. The damper hinge 2 comprises a damper mechanism 30 for reducing the rotational force to the closing direction of the door 6. The damper mechanism 30 includes a linear damper 31 disposed to the first hinge member 10 and a first cam member 32 and includes a second cam member 35 disposed to the second hinge member 20. The linear damper 31 is positioned far from the shaft member 40 in an orthogonal direction to a shaft line of the shaft member 40 and is positioned along the shaft member 40. When the door 6 rotates to the closing direction and goes down, the linear damper 31 is shortened along with a cam action of the first cam member 32 and the second cam member 35.

Claims6

Dependent claims

A hinge device comprising

a plurality of hinges,
wherein each of the plurality of hinges comprises
a first hinge member (10) attached to a first object (5),
a second hinge member (20) attached to a second object (6) and rotating about a rotation shaft line (L) with respect to the first object,
a shaft member (40) connecting rotatably the first hinge member and the second hinge member and its shaft line being provided as the rotation shaft line,
wherein the first hinge member (20) and the second hinge member (40) relatively move in a direction of the rotation shaft line (L);
wherein at least one of the plurality of hinges comprises a rotational force imparting mechanism (70), and
at least one of the plurality of hinges comprises a damper mechanism (30),
wherein the rotational force imparting mechanism (70) and the damper mechanism (30) is assembled into same hinge of the plurality of hinges or is assembled into different hinges of the plurality of hinges,
wherein the rotational force imparting mechanism (70) comprises a lower cam member (72) having a cylindrical shape and being disposed to the first hinge member (10), and an upper cam member (71) having a cylindrical shape and being disposed to the second hinge member (20), the shaft member (40) is disposed to the first hinge member (10) and is positioned such that it passes through the upper cam member (71) and the lower cam member (72),
wherein, when the second object (6) goes down by a deadweight, the deadweight of the second object (20) is converted to a rotational force to a closing direction or an opening direction,
wherein a damper mechanism (30) reduces the rotational force of the second object to the closing direction or the opening direction,
wherein the damper mechanism (30) comprising,
a linear damper (31) disposed to one hinge member among the first hinge member (10) and the second hinge member (20) and positioned apart from the shaft member (40) in an orthogonal direction to a shaft line of the shaft member while positioned along the shaft member,
a first cam part (32) disposed to the one hinge and positioned at one end of the linear damper, and
a second cam part (35) positioned to another hinge member among the first hinge member (10) and the second hinge member (20)
wherein in a process where the second hinge member (20) of each of the plurality of hinges goes down together with the second object (6) while rotating to the closing direction or the opening direction, accompanied with a cam action of the first cam part (32) and the second cam part (35), the linear damper (31) is pressed and contracted.

14 more elements

A hinge device comprising a damper hinge (2) and a gravity hinge (3) positioned on a rotation shaft line (L) and spaced from each other,

wherein the damper hinge (2) includes the first hinge member (10) attached to a first object (5), the second hinge member (20) attached to a second object (6) and rotating about the rotation shaft line (L) with respect to the first object, the shaft member (40) connecting rotatably the first hinge member and the second hinge member and its shaft line being provided as the rotation shaft line, and a damper mechanism (30),
wherein the gravity hinge (3) includes,
a third hinge member (50) attached to the first object (5),
a fourth hinge member (60) attached to the second object (6),
another shaft member (80) connecting rotatably the third hinge member and the fourth hinge member and providing its shaft line as the rotation shaft line, and
a rotational force imparting mechanism (70),
wherein all the damper mechanism (30) reduces the rotational force of the second object to the closing direction or the opening direction,
wherein the damper mechanism (30) comprising,
a linear damper (31) disposed to one hinge member among the first hinge member (10) and the second hinge member (20) and positioned apart from the shaft member (40) in an orthogonal direction to a shaft line of the shaft member while positioned along the shaft member,
a first cam part (32) disposed to the one hinge and positioned at one end of the linear damper, and
a second cam part (35) positioned to another hinge member among the first hinge member (10) and the second hinge member (20)
wherein the rotation shaft line extends vertically and gravity of the second object (6) is provided as the urging force,
wherein the rotational force imparting mechanism includes a third cam member (71) disposed to the third hinge member (50) and having a cylindrical shape and a fourth cam member (72) disposed to the fourth hinge member (60) and disposed above the third cam member,
wherein another shaft member (80) is inserted and passed through the third cam member and the fourth cam member;
wherein, when the second object (6) goes down by a deadweight, the deadweight of the second object (20) is converted to a rotational force to a closing direction or an opening direction,
wherein in a process where the second hinge member (20) goes down together with the second object (6) while rotating to the closing direction or the opening direction, accompanied with a cam action of the first cam part (32) and the second cam part (35), the linear damper (31) is pressed and contracted.

13 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/420,614Filed 20 Dec 2019
Priority: JP 2019-00313511 Jan 2019
Published: US 2022/0106824 A17 Apr 2022
Granted: 14 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

E05F 3/20
Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices: in hinges
E05D 3/02
Hinges with pins: with one pin
E05F 1/043
For wings which lift during movement , operated by their own weight: with cams, helical tracks
E05F 1/061
Mechanisms in the shape of hinges or pivots, operated by the weight of the wing: with cams or helical tracks