A hinge device for adjusting a position of a door, includes a first member attached to a main body, a second member rotatable about a rotation axis with respect to the first member, a returner adapted to return the second member to a predetermined position, a base attachable to the door to be swingable about the rotation axis with respect to the second member, and a position adjusting member allowing an angle formed between the second member and the base around the rotation axis to be adjusted.

A hinge device is configured to apply an urging force to a case for returning the case to its neutral position. The hinge device comprises a first and a second contact portion, the case with a cylindrical portion1, a coil spring fitted in the cylindrical portion1 of the case, a shaft inserted inside the coil spring, and a shaft member having a first and a second engaging portion fixed to the shaft in anti-rotatable. The first and second contact portion are formed integral with the cylindrical portion1.

In a hinge device comprising a first member attached to a main body, a second member attachable to a door and rotatable about a vertical rotation axis with respect to the first member, a cam provided in the first member, and a linear damper provided in the second member and actuatable by the cam, the linear damper is disposed below the lower surface of the door.

The closer according to the present disclosure, which is installed on a door, can control damping force applied to the door in a stepwise manner through coupling to the damping device, the damping chamber, and the torsion device, and has a simple configuration, thereby providing advantages in which durability is excellent and lifespan is long. Furthermore, the damping device of the closer can be easily manufactured, can reduce manufacturing costs, can improve the reliability of the accurate regulation and damping operation of working fluid, and can accurately control of the resistance of the working fluid. The damping chamber of the closer can facilitate the formation of a flow path for working fluid, can accurately control the resistance of the working fluid, and can enable the control of the resistance of the working fluid to be easily performed on an interval basis.

The closer according to the present disclosure, which is installed on a door, can control damping force applied to the door in a stepwise manner through coupling to the damping device, the damping chamber, and the torsion device, and has a simple configuration, thereby providing advantages in which durability is excellent and lifespan is long. Furthermore, the damping device of the closer can be easily manufactured, can reduce manufacturing costs, can improve the reliability of the accurate regulation and damping operation of working fluid, and can accurately control of the resistance of the working fluid. The damping chamber of the closer can facilitate the formation of a flow path for working fluid, can accurately control the resistance of the working fluid, and can enable the control of the resistance of the working fluid to be easily performed on an interval basis.

A hinge device includes a first fixed tubular half-shell having a working chamber defining a longitudinal axis, a second tubular half-shell rotatable about the longitudinal axis, a pivot rotating unitary with the latter which includes a single pass-through actuating member having a helical shape, a plunger member slidable along the longitudinal axis, and a tubular bushing having a pair of guide cam slots. A pin-inserted within the pass-through actuating member is provided to allow the mutual engagement of the pivot and the bushing. The first tubular half-shell includes an end portion susceptible to rotatably support the pivot, the second tubular half-shell and the bushing are coaxially coupled to each other, and the bushing and the first tubular half-shell are mutually unitarily coupled.

A hinge device includes a first fixed tubular half-shell having a working chamber defining a longitudinal axis, a second tubular half-shell rotatable about the longitudinal axis, a pivot rotating unitary with the latter which includes a single pass-through actuating member having a helical shape, a plunger member slidable along the longitudinal axis, and a tubular bushing having a pair of guide cam slots. A pin-inserted within the pass-through actuating member is provided to allow the mutual engagement of the pivot and the bushing. The first tubular half-shell includes an end portion susceptible to rotatably support the pivot, the second tubular half-shell and the bushing are coaxially coupled to each other, and the bushing and the first tubular half-shell are mutually unitarily coupled.

A hydraulically damped hinge comprising: a first hinge member (5) having a cylinder barrel (17) forming a first knuckle of the hinge; a second hinge member (6) pivotably mounted on the first hinge member (5) and comprising a second and third knuckle (20, 21) which are situated at opposing ends (22, 23) of the cylinder barrel (17); a torsion spring (79) within a double-wall portion of the cylinder barrel (17) and having a first extremity connected to the first hinge member (5) and a second extremity (81); a dashpot within the cylinder barrel (17); and a rotatable tensioning element (83) within the double-wall portion of the cylinder barrel (17) and fixed to the second knuckle (20) and to the second extremity (81) of the torsion spring (79). The rotatable tensioning clement (83) allows tensioning the torsion spring (79) during assembly of the hinge. Placement of the rotatable tensioning element (83) avoids needing to provide a recess in the second knuckle (20) thereby improving the overall strength of the second hinge member (6).

A hydraulically damped hinge comprising: a first hinge member (5) having a cylinder barrel (17) forming a first knuckle of the hinge; a second hinge member (6) pivotably mounted on the first hinge member (5) and comprising a second and third knuckle (20, 21) which are situated at opposing ends (22, 23) of the cylinder barrel (17); a torsion spring (79) within a double-wall portion of the cylinder barrel (17) and having a first extremity connected to the first hinge member (5) and a second extremity (81); a dashpot within the cylinder barrel (17); and a rotatable tensioning element (83) within the double-wall portion of the cylinder barrel (17) and fixed to the second knuckle (20) and to the second extremity (81) of the torsion spring (79). The rotatable tensioning clement (83) allows tensioning the torsion spring (79) during assembly of the hinge. Placement of the rotatable tensioning element (83) avoids needing to provide a recess in the second knuckle (20) thereby improving the overall strength of the second hinge member (6).

A hinge device includes a first fixed tubular half-shell having a working chamber defining a longitudinal axis, a second tubular half-shell rotatable about the longitudinal axis, a pivot rotating unitary with the latter which includes a single pass-through actuating member having a helical shape, a plunger member slidable along the longitudinal axis, and a tubular bushing having a pair of guide cam slots. A pin inserted within the pass-through actuating member is provided to allow the mutual engagement of the pivot and the bushing. The first tubular half-shell includes an end portion susceptible to rotatably support the pivot, the second tubular half-shell and the bushing are coaxially coupled to each other, and the bushing and the first tubular half-shell are mutually unitarily coupled.