Abstract: A sliding door assembly includes a track assembly comprising an inner track component, and outer track component, and a central track component, the inner track component and the central track component defining an inner track, the outer track component and the central track component defining an outer track; a pivot assembly engaged with and movable along the inner track; a sliding door pivotably mounted to the pivot assembly; and a locking pin coupled to the sliding door and movable between an extended configuration and a retracted configuration, wherein, in the extended configuration, the locking pin is engaged with and movable along the outer track.

Abstract: A hinge closure (1) including a first hinge element (2) for arrangement on a door (4) and a second hinge element (3) for arrangement on a door frame, wherein the first hinge element (2) and the second hinge element (3) interlock via a locking device (7) an actuating device (6) actuates the locking device (7), and an emergency unlocking device (8) unlocks the two hinge elements (2, 3). In another embodiment, a door (4) includes such a hinge closure (1).

Abstract: A catheter for dialysis for long-term application features a proximal end for introducing into a blood vessel, a distal end for extracting blood and for introducing purified blood, and a fixing member surrounding a tube section for fixing the catheter on the patient. The fixing member has a receiving part and an opening part, wherein, with respect to the receiving part, the opening part can be moved from an opening position, in which the tube section is insertable into the fixing member, into a closing position, in which the tube section is fixed in the fixing member.

Abstract: Systems, methods, and apparatus for an ejection port cover with a multifunctional pin. In one embodiment, a fixed pin and a spring-loaded pin both mate with hinge openings at ends of the ejection port. The spring-loaded pin can be longitudinally biased by a spring, such as a torsion spring. This same spring can perform biasing of the ejection port cover toward an open position as well as biasing of a flag extending from the spring-loaded pin into a locked position when the ejection port cover is not installed.

Abstract: An indoor unit for a ceiling-concealed air-conditioning apparatus includes an indoor-unit body having an air inlet at a bottom, a decorative panel provided at the bottom of the indoor-unit body and serving as a design surface, and an inlet grille flap rotatably supported by the decorative panel and covering the air inlet. The inlet grille flap is provided with rotational-axis hinges positioned on both sides at one edge of the inlet grille flap and serving as a rotational axis of the inlet grille flap, and a latch part positioned between the two rotational-axis hinges and projecting from the one edge. The decorative panel has a flange positioned below the latch part and supporting the latch part from below when the inlet grille flap is closed.

Abstract: A washing machine lid and a hinge for attaching the washing machine lid. The washing machine includes a cabinet and a rotatable lid. A hinge rotatably connects the lid to a top panel or front panel of the cabinet. The hinge includes a shaft, a housing defining a cavity for receiving an end of the shaft, and a connecting member extending from the housing such that the housing and the connecting member are rotatable around the shaft. The connecting member includes one or more tabs. The lid includes a pocket, the pocket receives the hinge, the pocket defines one or more sockets for receiving the one or more tabs, and the one or more tabs are biased into engagement with the one or more sockets.

Abstract: A toilet seat has a toilet seat ring and two coaxial hinges which have two mutually spaced-apart bearing pins and hinge sleeves molded onto the toilet seat ring. The two hinge sleeves slide onto the journals from the same side.

Abstract: Hinge assemblies having a tub knuckle, a lid leaf and a hinge pin assembly are provided. The tub knuckle has a base, a first pin holder extending from the base and a second pin holder extending from the base and spaced from the first pin holder. The lid leaf has a mounting plate and a pin holder. The hinge pin assembly is movable between a closed position and an open position, and includes a hinge pin and a retainer assembly that can be used to lock the hinge pin assembly in the closed and open positions.

Abstract: A fixture assembly, for use in maintaining a piece of heavy equipment. The fixture assembly includes a first connecting component configured to be connected releasably to a first part of the heavy equipment, and a second connecting component configured to be connected releasably to a second part of the heavy equipment connected to the first part when the heavy equipment is assembled. The fixture assembly also includes a hinge arrangement connecting the first connecting component to the second connecting component. The technology further includes methods for maintaining the heavy equipment using the fixture assembly, such as by separating heavy equipment parts in order to replace a gearbox of the equipment.

Abstract: A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body; a cam element unitary with the pivot; a plunger element sliding in the working chamber, the plunger element having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The hinge body has a substantially plate-like shape. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

Abstract: A latch for coupling a first object to a second object is disclosed comprises a primary block coupled to the first object. A locking cam is rotatably coupled to the primary block. A cam track having a sloped surface is in the locking cam. A locking stem slideably engages the primary block and traverses the locking cam. A cam pin is coupled to the locking stem. The cam pin slidably engages the sloped surface for displacing the locking stem between an extended position and a retracted position. A stem head is coupled to the cam pin. A secondary block is coupled to the second object. A cam channel is in the secondary block for receiving the locking stem. A head receiver is in the secondary block for engaging the stem head. The extended position defines an unlocked position and the retracted position defines a locked position.

Abstract: A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body to rotate between the open and the closed positions of the shutter; a cam element unitary with the pivot; a plunger element sliding in the working chamber and having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

Abstract: A bearing arrangement for a door, in particular for refrigerators or freezers, comprises a bearing pin for rotatably bearing the door, a closing device by means of which the door can be moved over a certain pivoting region in the closing direction through the force of a force accumulator, and a damper for damping a pivoting movement of the door over at least one pivoting region, and the closing device and the damper are oriented in a substantially perpendicular plane with respect to the axis of rotation of the bearing pin, wherein, to move the closing device, a first curved guide which can be moved by the bearing pin is provided and, to move the damper, a second curved guide which can be moved by the bearing pin is provided. As a result, the bearing arrangement can have a particularly compact design, the bearing arrangement being used in particular in a refrigerator or freezer.

Abstract: A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body; a cam element unitary with the pivot; a plunger element sliding in the working chamber, the plunger element having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The hinge body has a substantially plate-like shape. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

Abstract: A hinge for cold rooms or glass shutters includes a stationary support structure and a shutter movable between an open position and a closed position. The hinge includes a hinge body with a working chamber; a pivot coupled with the hinge body to rotate between the open and the closed positions of the shutter; a cam element unitary with the pivot; a plunger element sliding in the working chamber and having a slider with an operative face interacting with the cam element; a counteracting elastic member acting on the plunger element to move it between a position proximal to the bottom wall of the working chamber and a position distal therefrom. The cam element includes an elongated appendix extending from the pivot to come in contact engagement with the operative face of the slider. The pivot is placed at one of the side walls of the working chamber.

Abstract: A structural arrangement is described in pneumatic floor spring of reduced dimensions, which requires a hole in the floor for its installation, providing a shielded structure that prevents the water accumulation, such pneumatic floor spring keeps the door closed by the force exerted by the plunger and when the door is opened, the pin spins along with the cam which, with the double helicoil, pushes the descendent track and the plunger.

Abstract: A dust cover for a firearm is provided. The cover includes a panel and a first extension extending from the panel and configured for engaging with the firearm to selectively secure the panel to the firearm. The panel is pivotable about the first extension to define a pivot point for pivoting the panel from a first position that encloses an opening or ejection port of the firearm and a second position in which the opening is not enclosed. The first extension is retractable relative to the panel to thereby allow for the selective engagement of the dust cover to the firearm. A related method of installing or replacing the dust cover is also provided.

Abstract: A removable dust gate for an automatic weapon is described. The removable dust gate can include a retractable pivot pin having rod sections with compressible objects therebetween that allow the rod sections to be temporarily pushed together, shortening the length of the retractable pivot pin. When the pivot pin is shortened, it can be placed between two pin ports on the weapon. When released, the pivot pin will engage with the pin ports to secure the dust gate to the weapon in the correct position to engage with the ejection port on the weapon. By shortening the pivot pin, the dust gate can be an easily removed without having to change the design or configuration of current weapons or weapon design.

Abstract: A system for mounting an industrial light to a fixed surface includes a plurality of spring-loaded pins extending from one of either the industrial light or the fixed surface, and a mounting bracket associated with the other of either the industrial light or the fixed surface. The mounting bracket includes an engagement aperture corresponding to each of the plurality of spring-loaded pins, a retainment aperture associated with each engagement aperture, and an inclined channel connecting each engagement aperture with its associated retainment aperture. A head of each of the spring-loaded pins is inserted through a corresponding one of the engagement apertures and then moved through the associated inclined channel until it is seated within the associated retainment aperture, in order to removably attach the industrial light to the mounting bracket.

Abstract: A mount for mounting a door to rack includes a rack including a first pair of vertically-extending supports, each support including an array of openings; a first mount coupled to the rack at a first position thereon, the first mount including: a first plate extending between the first pair of vertically-extending supports and including a first end and a second end, and a first hinge arm adjustably coupled with the first plate; a second mount coupled to the rack at a second position located below the first position, the second mount including: a second plate extending between the first pair of vertically-extending supports and including a first end and a second end, and a second hinge arm adjustably coupled with the second plate.

Abstract: A laundry treating apparatus is provided that includes a cabinet configured to define a profile thereof, the cabinet including a laundry introduction opening formed therein, a door configured to open and close the laundry introduction opening, a hinge including a first pivot to rotate the door along a first rotational direction and a second pivot to rotate the door along a second rotational direction that is different from the first rotational direction, a guide part installed in the cabinet having a guide groove recessed a predetermined depth therein, and a connection part installed in the door, the connection part including a guide projection received in the guide groove of which a moving path is guided, and an opening angle of the opening being variable based on positions of the guide projection.

Abstract: A pole assembly to be mounted on a supporting platform to support photovoltaic modules includes a supporting pole, a fixing pole pivotably attached to the supporting pole, a first mounting member fixed on the supporting platform, and a second mounting member fixed on the supporting platform. The first mounting member defines a locking slot. A pin is attached to one end of the supporting pole opposite to the fixing pole. The pin is locked into the locking slot of the first mounting member. One end of the fixing pole opposite to the supporting pole is fixed to the second mounting member.

Abstract: An electronic apparatus excellent in workability in mounting a lid to an apparatus housing. The electronic apparatus comprises a housing having a pair of bearing portions, and a battery lid unit having a pair of shafts for being rotatably fitted in the bearing portions, respectively. A movable shaft of the shafts is axially retractable, and the battery lid unit is openable and closable with respect to the housing about the shafts. An urging spring has a contact portion for contact with the housing, and urges the battery lid unit in an opening direction with respect to the housing. The contact portion is moved according to retraction of the movable shaft such that an urging range through which the urging member urges the lid in the opening direction becomes smaller than a range of the pivotal motion of the lid with respect to the housing.

Abstract: A locking hinge including barrel members with a cylindrical female recess and a multi-sided center bore. A medial barrel member has a center bore and first and second cylindrical male portions rotatably inserted into one of the female recesses, and a multi-sided center bore, such that the bores are in axial alignment. First and second hinge pins have a cylindrical portion and a multi-sided portion slidably inserted through the aligned multi-sided center bores. A spring disposed in the medial barrel member urges the hinge pins apart. When in a fully locked configuration, the multi-sided portions of the hinge pins engage the multi-sided center bore of a male portion and a barrel member; when in an unlocked configuration, at least one or both of the hinge pins is depressed such that its multi-sided portion is disengaged from the multi-sided center bore of the barrel member through which it is slidably inserted.

Abstract: A locking hinge with a sliding hinge pin that selectively places the hinge in either a locked or unlocked configuration. The hinge pin includes cylindrical and contoured upper and lower exterior parts that cooperate with contoured upper and lower portions of the interior wall of the lower and upper sleeve members of the hinge. When in the locked configuration the lower contoured part of the hinge pin engages the contoured portion of the lower sleeve member and the upper contoured part engages the contoured portion of the interior wall of the upper sleeve, and in the unlocked configuration the lower contoured part of the hinge pin does not engage the contoured portion of the interior wall of the lower sleeve and the upper contoured part of the hinge pin does not engage the contoured portion of the interior wall of the upper sleeve.

Abstract: A door hinge assembly with hinge members having axially aligned cylindrical passages with interior surface shape, and a selectively depressible hinge pin with an exterior shape that matches the interior hinge member passages so as to permit selective locking of the hinge members.

Abstract: A closure device includes: a main body having first and second shoulders; a door secured rotatably to the main body and having first and second door edges; an engaging member; an engaging mechanism; and a second pivot axle. The first shoulder and the first door edge respectively have a through hole and a first axle hole. The engaging member and the engaging mechanism are disposed respectively at an inner side of the main body. The engaging member includes a first pivot axle extending through the through hole and the first axle hole, and a positioning piece extending radially from the first pivot axle and engaging the engaging mechanism. One of the second shoulder and the second door edge has a second axle hole, while the other of the second shoulder and the second door edge has the second pivot axle extending through the second axle hole.

Abstract: A hinge assembly includes a mounting sleeve defining a pivoting hole, a fastening seat, an elastic member, and a right side cover. The pivoting hole is enclosed by an interior peripheral wall. The interior peripheral wall defines a stopping slot. The fastening seat defines a fastening hole. The elastic member is received in the mounting sleeve. The right side cover includes a pole. The pole includes a first resisting bar and a second resisting bar. The pole is received in the pivoting hole and the fastening hole. The first resisting bar is slidably embedded in the stopping slot. The elastic member compresses the first resisting bar to abut against the fastening seat. When the first resisting bar slides out of the fastening hole and abuts against the fastening seat, the second resisting bar is slidably embedded in the stopping slot.

Abstract: The invention relates to a hinge arrangement of a door (14) for closing off an opening, such as a housing opening, partition opening, wall opening, or the like, having at least one pivot pin (18a) that is connected to the door (14) and oriented vertically in the direction of the housing (22), wherein the pin can be engaged in a pivot pin receptacle (20a) on the housing (22). The pivot pin (18a) can be moved from a retracted position, in which the pivot pin (18a) is not engaged in the pivot pin receptacle (20a), by vertical displacement into an extended position in which the pivot pin (18a) is engaged in the pivot pin receptacle (20a) and is rotatably supported therein. A releasable, spring-loaded locking device (41) acts on the pivot pin (18a) and holds the pivot pin (18a) in the retracted position.

Abstract: A new and improved window assembly includes a window frame, and a window sash having an open-tilted and a closed position. The window sash has pivot pins that engage kidney shaped receptacles located on the window frame. The kidney shaped receptacles permit movement of the window sash into the open-tilted or closed position. The design of the present invention minimizes the parts needed to assemble the window assembly making such a window assembly cheaper to manufacture and easier to assemble.

Abstract: A hinge pin for use with a hinge section having a bore. The hinge pin includes a hinge pin body dimensioned to fit within a bore of a hinge section and a clip having a first end attached to the hinge pin body, the clip extending along the hinge pin body and configured to be located outside the hinge section when the hinge pin body is within the bore.

Abstract: A mobile phone has a cover, a body and a hinge. The cover has a first bearing with a first cavity. The body has a second bearing with a second cavity and a locking plate at two opposite corners thereof. The hinge includes a transverse shaft being inserted in the first cavity, a vertical shaft extending perpendicularly from one end of the transverse shaft and being inserted in the second cavity, and a locking mechanism being inserted in the first cavity and fixed on the other end of the transverse shaft. The locking mechanism can lock with the locking plate to make the cover be stacked on the body stably. Furthermore, the cover can be firstly rotated vertically 180 degrees about the transverse shaft and then rotated horizontally 180 degrees about the axis of the vertical shaft to make the cover and the body be arranged side by side.

Abstract: A fitting for an all-glass door with an upper bearing which substantially includes a fitting body with a glass receptacle and/or a clamping device for a glass leaf and with a bearing pin for engagement in a counterbearing at an overpanel or in a frame. The bearing pin is displaceable in a pocket hole. To provide a fitting that resists intrusion after the glass door is installed, the bearing pin of the fitting is secured in such a way that the glass leaf is prevented from being lifted out when the all-glass door is closed.

Abstract: A blade server system is described. The blade server system includes a main chassis, a rear module chassis and a mid-plane. The main chassis is formed with slots into which a plurality of sever blades are slidablely inserted from the front end of the main chassis. The rear module chassis is removablely mounted to the rear end of the main chassis, and divided into plural partitions for housing different component modules. The mid-plane is mounted to an end of the rear module chassis, and includes a first face and an opposite second face. The first face has plural connectors electrically connected to the server blades and the second face has plural connectors electrically connected to the component modules. Therefore, when maintenance is needed for the mid-plane, the service engineer only needs to withdraw the entire rear module chassis as a whole, without the need to remove the individual component modules.

Abstract: A door can be opened from either direction, from the left or the right. A double direction opening mechanism for a door has a first and second hinge pairs (5, 6), a first and a second hinge pin drive mechanism (7, 8), and a first and a second handle (91, 92). When either the first or the second handle (91, 92) is selectively operated, either the first or the second hinge pin pair (53, 63) is drawn out from either the first or the second hinge pair (5, 6). Then, a door (3) is rotated for opening/closing about either or the hinge pin pairs (53, 63) joined to the other of the first or the second hinge pair (5, 6).

Abstract: This is a device, which will allow a gate to be closed or open or set in a position to provide a means of ingress and egress to a particular facility. This would include warehouses, maintenance yards, farms and any sort of delivery facilities and other industrial sites.

Abstract: A lockable hinge for preventing opening of a door wherein the fixed and pivoting hinge plates have solid, torque resistant knuckles with aligned passages configured in non circular shapes to permit insertion of a complementary hinge pin thereby preventing opening of the door. The passage may be further configured to permit insertion of a circular hinge pin to selectively allow normal opening and closing of the door.

Abstract: Apparatus for controlling various and different movements of a door, said apparatus having a door hinge assembly with a hinge pin having a plurality of bearing surfaces to reduce stress and wear on a hinge pin housing, a torque mechanism for pre-torquing and torquing a hinged door, a door leveling mechanism that operates at the top of the door while the door remains closed, and a semi-automated mechanism that holds the door 90 degrees open and releases the door for closing by said torque mechanism.

Abstract: A panel system comprises at least one bi-fold panel assembly (2, 3) of two panels hinged together along one edge (18) of each so as to be foldable thereabout, with at least one edge (20, 22, 24, 26) of the bi-fold panel assembly (2, 3) supported by a hinge device (30, 32, 34, 36) comprising two parallel pivot supports spaced apart in a plane orthogonal to pivot axes thereof, and a connecting link for in-situ connection therebetween. Hence the bi-fold panel assembly (2, 3) can be optionally connected in-situ by the connecting link to thereby obtain optional configurations of the panel system.

Abstract: A bracket that conveys repeated lateral forces on a bi-fold door from an overhead channel on a bi-fold door doorjamb through a common peg and roller to the bi-fold doors without damaging the door. The bracket comprises a horizontal edge plate and a broad vertical brace plate meeting orthogonally at a bracket corner. The horizontal edge plate has a vertical tubular post extending upwardly therefrom for receiving the peg and roller. Alternatively, the horizontal edge plate may have a hole no larger than the drilled hole in the door top edge in which the peg may be is received. To align the brace plate hole with the door hole the bracket may include a vertical edge plate orthogonal to both the horizontal edge plate and the vertical brace plate, extending between them. The vertical edge plate then measures the distance from the door side edge to the door hole as the same distance between the bracket vertical edge plate and the bracket peg hole.

Abstract: A hinge assembly for truck utility bodies. The hinge assembly comprising three female hinges, a male hinge, and a hinge pin aligned along the pivot axis of door of the truck utility body. The hinge assembly is mounted inside the utility body of the truck, thereby eliminating the problems associated with externally mounted hinge assemblies.

Abstract: A door supporting device for supporting a door in a door frame is disclosed. The device includes an upper unit, which further includes a frame attachment member to be fixed to a door frame header; a frame-side connector member rotatably connected to the frame attachment member and having an adjuster aperture; a door-side connector member connected to a rotation shaft extending from the door and detachably connected to the frame-side connector member; and an eccentric bolt connected to the frame attachment member through the adjuster aperture. The eccentric bolt is exposed from the adjuster aperture with a portion of the eccentric bolt being in contact with periphery of the adjuster aperture. Rotation of the eccentric bolt makes the frame-side connector member to rotate to adjust alignment of the door with respect to the door frame in a direction of depth of the door.

Abstract: The invention concerns a hinge comprising two hinge parts (1,2) connected by a hinge pen (3), whereby the hinge pen (3) is provided with a stop (5) on one far end with which it will be situated against a hinge part (1). The other far end of the hinge pen (3) is fixed in relation to the other hinge part (2) by means of a somewhat springy bush (6) which catches in a groove (11) in said hinge pen (3) with at least one inwardly directed protrusion (9) on the one hand, and which is situated against an edge (2A) of the aforesaid other hinge part (2) with at least one outwardly directed protrusion (8,8A;9) on the other hand.

Abstract: A hinge giving a neat look to a mounting area of a door is not exposed to an outer surface of the door. The hinge has a hinge spindle unit, buried flush with top and bottom lines on a fixed end of the door and disposed so as to allow protrusion and retraction of a spindle, and a hinge body unit, buried at a position facing the hinge spindle unit of the open frame and in which is inserted the protruding spindle, supporting the door to allow it to open and close.

Abstract: A door hinge assembly for use in an electrical appliance cabinet includes a door hinge member having a door plate attached to one side of an elbow, a hinge pin sleeve attached to the opposite side of the elbow, and a flange extending upwardly from the elbow. A hinge pin is removably engageable with the hinge pin sleeve, which is further removably engageable with a top edge on the flange.

Abstract: A door hinge assembly for use in an electrical appliance cabinet includes a door hinge member having a door plate attached to one side of an elbow, a hinge pin sleeve attached to the opposite side of the elbow, and a flange extending upwardly from the elbow. A hinge pin is removably engageable with the hinge pin sleeve, which is further removably engageable with a top edge on the flange.

Abstract: A fitting and method for repairing and reinforcing a bifold door panel such the door retains a pivot pin. The fitting is L-shaped with two legs, each of which has a flange along one side edge. Openings are provided in the legs for registry with a pivot hole in the door panel. Other openings are provided in the legs and flanges for a plurality of screws for mounting the fitting to the door panel. The pivot pin is housed in a sleeve with a flange which abuts an outer surface of the leg when the pin is received in the opening in registry with the pivot hole, for holding the pivot pin upright in the pivot hole.

Abstract: A computer has a base and a speaker pivotably attached to the base via a hinge assembly. A cable extends through the hinge assembly to electrically connect the base and the speaker. The hinge assembly includes a pair of bushings fixed to the base, a sleeve fixed to the speaker and a pair of shafts. The pair of shafts is retained in opposite ends of the sleeve and is rotatably received in the bushings for pivotably attaching the speaker to the base. An aperture is defined in one of the bushings, a notch is defined in the sleeve, and a bore is defined through the shaft for providing access to the cable.

Abstract: A computer is disclosed having a power supply assembly that may be rotated into a first position for operating the computer, rotated into a second position for servicing components within the computer, or removed from the computer quickly and easily. The power supply assembly is mounted to a chassis via first and second pivot pins that define an axis of rotation and engage first and second bearing surfaces. The first pivot pin may be disengaged from the first bearing surface without removing a fastener. In one embodinent, the first pivot pin is disengaged from the first bearing surface by relative movement between the first pivot pin and the first bearing surface along the axis of rotation. In another embodiment, the first pivot pin is disengaged from the first bearing surface by passing it through a slot in the bearing surface orthogonal to the axis of rotation.

Abstract: The objective of the present invention is to provide a hinge giving a neat look to the mounting area of a door without being exposed to the outer surface of the door, the hinge being composed of a hinge spindle unit, buried flush with the top and bottom lines on the fixed end of the door and disposed in a way to allow protrusion and retraction of the spindle, and a hinge body unit, buried at a position facing the hinge spindle unit of the open frame and in which is inserted the protruding spindle, and supporting the door in a way to open and close.