JP2008127740A - Suspension fitting unit of pivot hinge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suspension fitting unit of a pivot hinge provided with a self-closing means capable of hanging a hinged door into a door frame simply even if a section for constructing the hinged door has scarcely clearance between the hinged door and an upper frame part on a ceiling side. <P>SOLUTION: This suspension fitting unit of the pivot hinge is constituted in such a way that a tip shaft part 19 of a pivot shaft 18 held by a pivoting fitting 15 by protruding from an upper end of the hinged door is fitted into a positioning hole 26 having a whirl-stop shape of an adjusting cam 25, the adjusting cam is fitted into an adjusting hole 31 to slide vertically in the direction of thickness at an optional fitting angle position to connect a joint 30 with the adjusting cam and select a return position of the hinged door, and an engaging part 32 of the joint is engaged with an arm part 22a of a support bracket 20 fixed to a butt end 10 of the door frame F transversely to assemble the suspension fitting unit H2 of an upper hinge part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, when the opening door is pivotally supported by pivot shafts respectively provided on the upper and lower hinge portions and is pivotably suspended from the door frame, when the opening operation of the opening door is stopped halfway during opening and closing, the opening door is closed. A pivot hinge provided with self-closing means for automatically rotating to return to a predetermined return position and selectively setting the return position, and in particular, the upper hinge portion of the pivot hinge The present invention relates to a hanging bracket unit to be configured.

Conventionally, as shown in FIG. 7, for example, as shown in FIG. 7, the hinge for an open door is mounted inconspicuously and has a good appearance. There are many so-called pivot hinges that pivot around the door frame 6 so as to be rotatable. Further, as this kind of pivot hinge, when opening and closing, when the opening operation of the opening door 5 is stopped halfway, the opening door 5 automatically rotates in the closing direction and returns to a predetermined return position. A gravity hinge type (see Patent Document 1) including self-closing means having a structure using 7 or the like, and a spring hinge type using a torsional action of a coil spring, not shown, are well known. Furthermore, in the conventional illustrated pivot hinge, a plurality of adjustment protrusions 8a are provided around the pivot shaft 4 on the L-shaped support fitting 8 of the lower hinge portion 2, while the adjustment protrusion 8a corresponds to the saddle-shaped bottom portion of the cylindrical cam 7. A plurality of adjustment holes are provided, and the adjustment protrusion 8a and the adjustment hole are fitted at an arbitrary fitting angle position in the circumferential direction so that the return position of the opening door 5 can be selectively set.
Japanese Utility Model Publication No. 61-137766

  However, in the conventional pivot hinge, for example, when the gap S between the upper frame portion 6a of the door frame 6 and the opening door 5 is small as shown by a chain line in FIG. Even when trying to hang the frame 6, the protruding end of the pivot shaft 3 of the upper hinge portion 1 protruding upward from the opening door 5 becomes an obstacle, making it difficult to hang the opening door 5 to the door frame 6 and the narrowness of the gap S. Depending on the situation, there was a problem that it could not be suspended.

  On the other hand, for example, when the door 5 is suspended with a desired gap between the floor surface 9 in consideration of the air permeability of the room, the door 5 can be attached to the door frame 6 depending on the installation conditions. The installation height position needs to be finely adjusted. For this reason, the hinge hinge needs to be finely adjusted and installed at the construction site in accordance with the installation height position of the door 5. However, in the conventional illustrated pivot hinge, when the mounting position is finely adjusted, the fitting position between the adjustment protrusion 8a and the adjustment hole is also shifted due to the structure, and as a result, the return position of the opening door 5 is set. Therefore, there is a problem that the upper and lower hinge portions 1 and 2 cannot be mounted by adjusting the mounting position according to the height position of the opening door 5.

  Therefore, in order to solve the above-described problem, the invention described in claim 1 is configured to pivotally support the opening door D by pivot shafts 14 and 18 respectively provided in the upper and lower hinge portions, for example, as shown in the embodiments shown below. When the opening operation of the opening door D is stopped halfway during opening and closing, the opening door D is automatically rotated in the closing direction and returned to a predetermined return position. In the pivot hinge H provided with a self-closing means that allows the return position to be selectively set, the suspension hinge unit H2 constituting the upper hinge portion of the pivot hinge H, The pivot shaft 18 is fitted into a fitting cylinder 17 embedded in the upper end, and a pivot fitting 15 for holding the tip shaft portion 19 of the pivot shaft 18 protruding from the upper end of the opening door D, and the door frame F Fixed to the upper side of the mouthpiece 10, A support bracket 20 having an arm portion 22a projecting laterally with respect to the mouthpiece 10 when fixed to the mouth 10, and a non-rotating hole shape in which the distal end shaft portion 19 of the pivot shaft 18 and the pivot shaft 18 are non-rotatably fitted to each other. The adjustment cam 25 has a number of corners 25a corresponding to at least the selective return position of the opening door D on the outer periphery, and the adjustment cam 25 on one end side. An adjustment hole 31 that is slidably inserted vertically in the thickness direction is formed in a hole shape that matches the outer shape of the adjustment cam 25, and is engaged with the arm portion 22a of the support bracket 20 on the other end side. And a joint 30 provided with an engaging portion 32, and when the opening door D is suspended, the distal end shaft portion 19 of the pivot shaft 18 is fitted into the positioning hole 26 of the adjustment cam 25, and the adjustment is performed. The cam 25 The opening position of the opening door D is selected by fitting the hole 31 at an arbitrary fitting angle position and connecting the joint 30, while the engagement portion 32 of the joint 30 is set to the arm portion 22 a of the support bracket 20. It is characterized by being assembled by being engaged horizontally.

  According to the first aspect of the present invention, the suspension fitting unit constituting the upper hinge portion of the pivot hinge is fixed to the engagement portion of the joint on the pivot attachment fitting side and fixed to the door frame side when the opening door is suspended. Since the arm part of the support bracket is assembled by engaging it sideways along the upper frame part on the ceiling side, the place where the opening door is built is almost even between the opening door and the upper upper frame part. Even if there is no gap, there is no obstacle and the opening door can be easily assembled to the door frame.

  Further, according to the first aspect of the present invention, in the hanging bracket unit constituting the upper hinge portion of the pivot hinge, the adjustment cam is vertically moved in the thickness direction in the adjustment hole of the joint connecting the pivot fitting to the support bracket. Because it is a structure that is slidably fitted, even when the opening door is suspended from the door frame while adjusting the height position, the adjustment cam The joint that is fixed to the door frame via the support bracket slides up and down through the adjustment hole, so that the fitting height between the adjustment cam and the adjustment hole of the joint is not removed, and the installation height of the door is opened. It is possible to follow the fine adjustment operation of the position. As a result, in the present invention, it is possible to select and set the return position when the opening door is closed by fitting the adjustment cam and the adjustment hole of the joint, while the opening door is It can be easily suspended from the door frame while finely adjusting the building height position according to the building conditions with the desired return position set.

  Hereinafter, the best mode of the present invention will be described with reference to the drawings.

  FIG. 4 is an assembled perspective view of the periphery of the door shown in a state in which the opening door is suspended from the door frame using the pivot hinge hanging bracket unit which is an example of the present invention. In the figure, D is an open door installed in a lavatory booth, for example, F is a panel-like door frame that supports the open door D, A is a headboard as an upper frame portion that supports the door frame F in a flush connection, and H is It is a pivot hinge provided with a pair of upper and lower hinge portions. The pivot hinge H includes a suspension fitting unit H1 as a lower hinge portion and a suspension fitting unit H2 according to the present invention as an upper hinge portion, and a suspension fitting unit on the lower side between the opening door D and the door frame F. H1 is assembled, and a hanging bracket unit H2 is assembled on the upper side, and the opening door D is suspended from the door frame F so as to be opened and closed at a predetermined installation position.

  The suspension bracket unit H1 of the lower hinge portion is composed of a support bracket 11 that is screwed to the lower side of the mouthpiece 10 of the door frame F and a pivot fitting that is screwed to the lower end of the opening door D. The support bracket 11 (see FIG. 5) is made of an L-shaped angle member having a horizontal receiving plate portion 11a and a vertical mounting plate portion 11b, and a non-rotating bearing hole 13 is formed in the horizontal receiving plate portion 11a. Become. On the other hand, the pivot fitting is inserted into the fitting cylinder embedded in the lower end of the opening door D by inserting the pivot shaft 14 in which the distal end shaft portion 14a has the same anti-rotation shape as the hole shape of the bearing hole 13 and the distal end shaft portion 14a. Is opened from the lower end of the door D and held. Then, when the suspension bracket unit H1 is assembled by fitting the tip shaft portion 14a of the pivot shaft 14 on the pivot mounting bracket side into the bearing hole 13 of the support bracket 11 fixed on the door frame F side, the pivot shaft 14 is supported as a fulcrum. As a result, the opening door D is pivotally supported. Although not shown, a braking means such as an oil damper that incorporates a braking force to decelerate the opening door D when the opening door D rotates in the closing direction is incorporated in the fitting cylinder of the pivot fitting. Suppose that

  On the other hand, as shown in FIG. 1 to FIG. 3, the suspension metal fitting unit H <b> 2 of the upper hinge part includes a pivot fitting 15 assembled on the side of the open door D, a support bracket 20 assembled on the door frame F side, and the pivot attachments. It is constituted by an adjustment cam 25 and a joint 30 that connect the metal fitting 15 and the support bracket 20.

  The pivot fitting 15 has a fitting tube 17 fixedly attached to one end of a mounting plate 16 having a plurality of screw holes, and a pivot shaft 18 is rotated in the fitting tube 17 through its upper end opening 17a. On the other hand, the front end shaft portion 19 is inserted in such a manner that it is prevented from coming off in a vertical direction at a position protruding a predetermined length from the upper end opening 17a. The pivot shaft 18 is formed so that the distal end shaft portion 19 corresponds to the hole shape of the bearing hole 26 of the adjustment cam 25 and is formed in a detent shape having a pair of symmetrical circular arc surfaces and flat surfaces 19a and 19a on the outer periphery. The pair of flat surfaces 19 a and 19 a are positioned and held in the fitting cylinder 17 so that the planes are parallel to the length direction of the mounting plate 16. Therefore, in the suspension fitting unit H2, a torsion spring (not shown) is incorporated in the fitting cylinder 17 of the pivot fitting 15, and one end of the torsion spring is hooked on the pivot shaft 18, while the other end is attached to the fitting cylinder 17. A spring hinge structure is formed by hooking on the part, and when the opening operation of the opening door D is stopped halfway, the opening door D is automatically rotated in the closing direction by the spring return force of the torsion spring. A self-closing means is configured to move and return to a predetermined return position. The pivot fitting 15 having such a structure is embedded by fitting a fitting cylinder 17 in an attachment cylinder hole 12 opened near the upper end corner of the opening door D, and screwing the attachment plate 16 to the upper end surface to open. Attach to door D.

  The support bracket 20 is formed by fixing a U-shaped receiving tool 22 in the direction orthogonal to the upper end of the mounting plate 21 in which a plurality of screw holes are drilled. The receptacle 22 has an arm portion 22a protruding in a bifurcated manner. Each arm portion 22a is provided with a screw hole 24 into which a set screw 23 is screwed. The support bracket 20 has the mounting plate 21 screwed to a predetermined height position on the upper side of the door 10 of the door frame F, and the arm portion 22a projecting horizontally in parallel with the headboard A.

  The adjustment cam 25 has a pair of circular arc surfaces and a plane symmetrical to the inner periphery in accordance with the shape of the distal end shaft portion 19 so that the distal end shaft portion 19 of the pivot shaft 18 and the distal end shaft portion 19 are non-rotatably fitted to each other. A positioning hole 26 having a non-rotating hole shape having 26a and 26a is formed. On the other hand, on the outer periphery, a plurality of angled corner portions 25a are provided at equal intervals in the circumferential direction, and the whole is formed into a vertically long gear-shaped cylindrical shape. In the illustrated example, a total of 12 adjustment cams 25 are formed by providing corner portions 25a at equal intervals of 30 degrees in the circumferential direction.

  The joint 30 is provided with an adjustment hole 31 through which the adjustment cam 25 is fitted in the thickness direction at one end in the length direction. On the other hand, on the other end side, an engaging portion 32 for engaging the arm portion 22a of the support bracket 20 is provided, and a screw hole 33 for screwing the set screw 23 in a direction crossing the engaging portion 32 is provided. It becomes. The adjustment hole 31 is formed in a gear cylinder hole shape according to the outer shape of the adjustment cam 25 so that the adjustment cam 25 can be slidably fitted up and down in the thickness direction. The engaging portion 32 in the illustrated example is formed by a narrow engaging groove into which the arm portion 22a of the support bracket 20 can be inserted and removed.

  When the opening door D is suspended from the door frame F by the pivot hinge H configured as described above, the suspension bracket unit H2 of the upper hinge portion is located near the upper end corner of the opening door D, and the tip shaft portion 19 of the pivot shaft 18 is located. Is fitted into the positioning hole 26 of the adjustment cam 25, and the adjustment cam 25 is positioned and set with respect to the opening door D at a predetermined reference position. Then, as shown in FIG. 2, the adjustment hole 31 is fitted in the circumferential direction at an arbitrary fitting angle position to connect the joint 30 to the adjustment cam 26 set at the reference position. Select the return position when closed automatically. In the illustrated example, the adjustment hole 31 is fitted into the adjustment cam 26 at a fitting angle position in which the joint 30 is parallel to the opening door D, so that the opening door D is closed when the opening door D is closed. A position that is in a fully closed state that is flush with F is selected, and this is set as a return position.

  After that, as shown in FIG. 5, the front door 14a of the pivot shaft 14 of the pivot fitting is inserted into the bearing hole 13 of the support fitting 11 which is lifted by opening the opening door D and fixed to the lower side of the door 10 of the door frame F. Is attached to assemble the suspension bracket unit H1 of the lower hinge portion, and the suspension bracket unit H1 supports the door D by assembling it below the door frame F so as to be rotatable.

  Then, the hanging bracket unit H2 of the upper hinge part is assembled and the opening door D is suspended from the door frame F. At that time, while holding up the opening door D supported by the hanging metal fitting unit H1 of the lower hinge portion, the joint 30 is brought closer to the support bracket 20 side along the horizontal headboard A, and the arm portion is moved sideways to the engaging portion 32 as it is. 22a is engaged. Then, the joint 30 is screwed to the support placket 20 through the set screw 23 in the screw holes 24 and 33, and the hanging bracket unit H2 is assembled. In this way, the door D is opened by the hanging metal fitting units H1 and H2 of the upper and lower hinges, and is suspended on the door frame F so as to be pivotable about the pivot shafts 14 and 18. Therefore, in the present invention, when the opening door D is suspended, the hanging bracket unit H2 overlaps the arm portion 22a of the support bracket 20 sideways along the coping A with the engaging portion 32 of the joint 30 on the pivot fitting 15 side. As shown in the figure, even if there is almost no gap between the opening door D and the upper headboard A as shown in the figure, There is no such thing, and the opening door D can be suspended easily.

  Therefore, when the opening door D is used, the opening hinge D can be opened by pushing the opening door D in the opening direction against the spring return force of the torsion spring in the illustrated pivot hinge H. On the other hand, at the time of closing, when the opening operation of the opening door D is stopped halfway, the opening door D is automatically rotated in the closing direction by the spring return force of the torsion spring to return to the predetermined return position. Can do. In the illustrated example, the opening door D returns to a return position where the door door F is flush with the door frame F and is completely closed. Further, when the opening door D rotates in the closing direction in this way, the braking force of the braking means works to decelerate the opening door D, and when the opening door D is completely closed, the opening door D contacts the door frame F or the like. Close quietly without impacting the area.

  In the pivot hinge H of the illustrated example, when the opening door D is closed, the opening door D is rotated while decelerating and is automatically returned to the return position to be fully closed, but when the opening door D is closed as such. For example, when it is desired to make the opening door D half-open in order to display the non-use state of the toilet, the fitting angle position of the adjustment cam 25 and the adjustment hole 31 of the joint 30 is changed in the hanging bracket unit H2. What is necessary is just to reset the return position of the door D. Since the adjustment cam 25 in the illustrated example has twelve corners 25a on the outer periphery, if the joint 30 is rotated in the circumferential direction by only one corner and the adjustment cam 25 is engaged with the adjustment hole 31, the adjustment cam 25 is 30 degrees. It will be in the state which rotated, and the return position of the opening door D can be easily set to the half open state opened 30 degree | times with respect to the plate | board surface of the door frame F. FIG.

  By the way, the opening door D is usually installed at a height position with respect to the door frame F depending on the installation conditions, such as when hanging with a gap of a desired height for ventilation with the floor surface. It is necessary to hang it with fine adjustment on site. However, in the suspension fitting unit H2 according to the present invention, the adjustment cam 25 is fitted in the adjustment hole 31 of the joint 30 that connects the pivot attachment 15 to the support bracket 20 so as to be slidable in the thickness direction. Therefore, even when the opening door D is suspended from the door frame F while adjusting the installation height position as described above, the adjustment cam 25 is adjusted according to the fine adjustment height of the installation position. Since the sliding is made up and down through the adjustment hole 31 with respect to the joint 30 fixed on the door frame F side through the opening, the fitting between the adjustment cam 25 and the adjustment hole 31 of the joint 30 is not released, and the door D is opened as it is. It is possible to follow the fine adjustment operation of the building height position. As a result, in the present invention, it is possible to select and set the return position when the opening door D is closed by fitting the adjustment cam 25 and the adjustment hole 31 of the joint 30. Can be easily suspended from the door frame F while finely adjusting the building height position in accordance with the building conditions with the state set to the desired return position.

  In the hanging bracket unit H2 in the illustrated example, the joint 30 is provided with an engaging portion 32 including an engaging groove on the other end in the length direction, and when the opening door D is suspended from the door frame F, the engaging groove 32 is provided. The arm portion 22a of the support bracket 20 is inserted sideways along the coping A and is engaged to be attached to the support placket 20. However, in the present invention, if the engaging portion 32 of the joint 30 is attached to the arm portion 22a of the support bracket 20 by being engaged laterally along the upper frame portion such as the coping A, the above illustrated example is used. For example, as shown in FIG. 6, when the other end portion of the joint 30 is provided with a notched step portion on both sides in the width direction, which is used as an engaging portion 32, and the opening door D is suspended from the door frame F, The arm portion 22a of the support bracket 20 is applied to the engagement step portion 32 in a lateral direction along the coping A, and is engaged by sandwiching the engagement step portion 32 between the both arm portions 22a and attached to the support placket 20. It can also be configured.

  Further, in the illustrated hanging bracket unit H2, the adjustment cam 25 is formed in a vertically long gear-shaped cylindrical shape having a plurality of angled corners 25a on the outer periphery, while the adjustment hole 31 of the joint 30 is provided with the adjustment cam 25. It is formed in the shape of a gear cylinder hole according to the outer shape of the door, and when the opening door D is suspended, the adjustment hole 31 is fitted to the adjustment cam 25 at an arbitrary fitting angle position to selectively set the return position of the opening door D. It was the composition to do. However, according to the present invention, if the adjustment hole 31 is fitted to the adjustment cam 25 at an arbitrary fitting angle position and the return position of the hinged door D can be selectively set, the adjustment cam is the same as the gear-shaped cylindrical shape. However, it is not limited to the illustrated example, and for example, it is formed in a vertically long polygonal nut shape whose outer periphery is formed with a polyhedral angle, while the adjustment hole 31 of the joint 30 is matched with the outer shape of the adjustment cam 25 of this other example. It can also be formed into a shape.

It is a disassembled perspective view of the hanging metal fitting unit which comprises the upper hinge part of the pivot hinge which is an example of this invention. It is an assembly perspective view of the suspension metal fitting unit of an upper hinge part. It is a longitudinal cross-sectional view which shows the suspension metal fitting unit of an upper hinge part in an assembly state. It is an assembly perspective view around the door shown in a state where the open door is suspended from the door frame by the hanging metal fitting unit of the upper and lower hinges. It is a perspective view of the surroundings of a door which shows the state which hangs an opening door on a door frame with the suspension metal fitting unit of an up-and-down hinge part. It is a disassembled perspective view which shows the hanging metal fitting unit of the upper hinge part containing the other examples of a joint. It is a front view of the surroundings of a door which shows the hanging state of the opening door by the conventional pivot hinge by making a part into a cross section.

Explanation of symbols

A Casagi D Opening door F Door frame H Pivot hinge H1 Lower hinge part hanging bracket unit H2 Upper hinge part hanging bracket unit 10 Door frame top 14/18 Pivot shaft 14a / 19 Pivot shaft tip axis 15 Pivoting bracket 17 Fitting cylinder 20 Support bracket 22a Support bracket arm 25 Adjustment cam 25a Adjustment cam outer peripheral corner 26 Adjustment cam positioning hole 30 Joint 31 Joint adjustment hole 32 Joint engagement portion

Claims (1)

When the opening door is pivotally supported by pivot shafts provided on the upper and lower hinges and is pivotably suspended from the door frame, when the opening operation of the opening door is stopped halfway during opening and closing, the opening door is moved in the closing direction. A pivot hinge provided with a self-closing means that automatically rotates to return to a predetermined return position and that allows the return position to be selectively set, and a suspension fitting that constitutes the upper hinge portion of the pivot hinge A unit,
A pivot fitting that fits and inserts the pivot shaft into a fitting cylinder embedded in the upper end of the opening door, and holds the tip shaft portion of the pivot shaft protruding from the upper end of the opening door;
A support bracket having an arm portion that sticks to the upper side of the mouth of the door frame and protrudes sideways with respect to the end of the door frame;
While having a positioning hole in the shape of a non-rotating hole that fits non-rotatably with the tip shaft portion of the pivot shaft at the center, at least the number of corner portions corresponding to the selective return position of the opening door on the outer periphery An adjustment cam formed,
An adjustment hole through which the adjustment cam is slidably inserted up and down in the thickness direction is formed in one end side so as to match the outer shape of the adjustment cam, and the support bracket arm is provided on the other end side. A joint provided with an engaging portion that engages with the portion,
When the opening door is suspended, the tip shaft portion of the pivot shaft is fitted into the positioning hole of the adjustment cam, and the adjustment hole is fitted to the adjustment cam at an arbitrary fitting angular position to connect the joint. Thus, the pivoting bracket unit of the pivot hinge is constructed by selecting the return position of the hinged door and assembling the joint engaging portion laterally with the arm portion of the support bracket.

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