Pivot hinge, pivoting door leaf and method for mounting and / or dismounting pivoting door leaf

Abstract

A pivot hinge has a retractable pivot pin for pivotally connecting a pivoting door leaf to a structural element. The door leaf is provided with an upper edge, a lower edge, an inner side edge and an outer side edge. The pivot pin defines a vertical pivot axis. The pivot hinge further includes a housing configured to be mounted to the door leaf or structural element, such as at an upper edge of the door leaf, for example at a corner region between an inner side edge and the upper edge of the door leaf, with the pivot pin movably provided in a vertical passage within the housing, and a lever assembly configured to move the pivot pin in the vertical passage within the housing. And an actuator adapted to move the pivot pin between the retracted position and the extended position. A lever assembly is located within the housing and includes a lever member having a first end engaged with the pivot pin, a fulcrum and a second end, and a lever adjustment member engaged with the second end of the lever member such that operation of the lever adjustment member causes the lever to pivot about the fulcrum, which in turn moves the pivot pin between a retracted position and an extended position.

Description

Technical Field

[0001] The present invention relates to the field of pivot hinges having a retractable pivot pin for pivotally connecting a pivoting door leaf to a structural element, such as a door frame, floor or ceiling. Background Art

[0002] In a known embodiment, the pivot hinge is mounted to a pivot door and comprises a retractable pin, which is generally cylindrical in shape. To mount the pivot door, the pin is extended to be received in a suitable opening of a structural element, such as a door frame, ceiling or floor. For example, the opening in which the pivot pin is received may be provided in the structural element itself, or in a dedicated mounting plate to be fixed to the structural element. Alternatively, the pivot hinge is mounted to the structural element. To mount the pivot door, the pin is then extended and received in a suitable opening of the pivot door.

[0003] The pivot pin is normally engaged with the opening in which the pin is received when the pin is extended, so that the pivot door has a fixed position relative to the structural element, except for rotation about the vertical pivot axis defined by the pivot pin. In other words, by using a pivot hinge, the pivot door can rotate about the vertical pivot axis defined by the pivot pin and thus can swing between an open position and a closed position, such as allowing the door to be opened in two directions.

[0004] In US2657421, a pivot hinge in the corner region between the upper edge and the inner edge of a door leaf is disclosed. Here, the pin can be moved between a retracted position and an extended position by operating a rotating handle running in a rack formed midway between the two ends of the pin. This pivot pin cannot be adjusted laterally.

[0005] In US5490305 a pivot hinge is disclosed in the corner region between the upper edge and the inner edge of a door leaf. The pin can be moved from the upper edge of the door to an extended position by a spring. This means that when the door is installed the pin must be actively pushed downwards before it is aligned with the opening in the door frame. Such a pivot pin cannot be adjusted laterally. Summary of the invention

[0006] It is an object of the present invention to provide an alternative pivot hinge.It is a further object of the present invention to provide a pivot hinge which allows an improved mounting and / or dismounting of a pivoting door leaf.

[0007] This object is achieved by a pivot hinge according to claim 1 .

[0008] The housing is configured to be mounted to a door leaf or a structural element, for example at an upper edge of the door leaf, for example at a corner area between an inner side edge and an upper edge of the door leaf.

[0009] The slidable base member is movably mounted within the housing such that sliding movement of the base member adjusts the lateral position of the pivot pin relative to the door leaf or structural element. The slidable base member includes a block having a vertical channel defined therein and having a sliding surface that slidably engages the housing. The pivot pin is movably provided in the vertical channel of the block.

[0010] The base adjustment member of the pivot hinge is configured such that operating the base adjustment member causes the slidable base member to move in the housing, for example in a direction parallel to an upper edge of the door leaf, for example parallel to a top plate of the housing.

[0011] The pivot hinge further includes a lever assembly adapted to move the pivot pin between the retracted position and the extended position. The lever assembly is located within the housing and supported by the slidable base member. The lever assembly includes a lever member having a first end engaged with the pivot pin, a fulcrum, and a second end; a lever adjustment member engaged with the second end of the lever member, such that operating the lever adjustment member causes the lever to pivot about the fulcrum, which in turn moves the pivot pin between the retracted position and the extended position.

[0012] In a pivot hinge, the lever assembly allows for a reliable mechanism for extension and retraction of the pivot pin.

[0013] The slidable base member allows different lateral positions of the block with the vertical channel, the pivot pin arranged in the vertical channel and the lever assembly in the housing. This is advantageous when installing the door leaf, since the alignment of the door leaf relative to the structural element (e.g. door frame, floor, ceiling) and / or the alignment of the pivot pin relative to the opening in the structural element can be adjusted.

[0014] The pivot pin is movably provided in a vertical channel in a block of a slidable base assembly that is able to slide within the housing. The lever assembly is also located within the housing. This forms a strong and integrated pivot hinge. The block can increase the stability and rigidity of the pivot pin.

[0015] In a practical embodiment, the lever adjustment member can be operated from the outside of the housing. For example, the lever adjustment member can be operated from the edge of the door leaf or a structural element, which is mounted to, for example, the inner edge of the door leaf, the upper edge of the door leaf or the edge of the door frame. In this way, the mechanism is easily accessible when installing and / or removing such a door leaf.

[0016] Operation of the base adjustment member causes the slidable base member to move within the housing, for example in a direction parallel to the upper edge. This is advantageous because the distance between the inner edge and the pivot pin can be easily adjusted. In other words, this facilitates adjustment of the lateral position of the pivot pin. The operation of the base adjustment member is independent of the operation of the lever adjustment member. That is, extension of the lever adjustment member to adjust the position of the pivot pin does not affect adjustment of the lateral position of the slidable base member by the base adjustment member, and vice versa.

[0017] In an embodiment, the block of the slidable base member is slidably received with a portion thereof in an elongated recess in the bottom side of the top plate of the housing.

[0018] The block of the slidable base member can be made of a low friction material, such as plastic. This allows low friction movement of the pivot pin between the extended position and the retracted position (i.e., up and down), and at the same time allows low friction movement of the slidable base member along the housing. In another embodiment, there is a low friction coating or lubricant.

[0019] In a practical embodiment, the housing is provided with inner ribs to slidably support the block of the slidable base member.For example, the longitudinal side plates of the housing are all provided with inner ribs.

[0020] In a practical embodiment, the base adjustment member can be operated from the inner edge of the door leaf. For example, the housing is configured to be mounted to the upper edge of the door leaf at a corner area between the inner edge and the upper edge of the door leaf. This embodiment makes it easy for the installer to access the base adjustment member.

[0021] In a practical embodiment, the lever adjustment member is operable from the inside edge and the lever member is located on the opposite side of the pivot pin relative to the lever adjustment member. This is advantageous, for example, because this allows the vertical pivot axis to be positioned relatively close to the inside edge of the door, while still being able to provide sufficient leverage by suitable sizing of the lever member. That is, the distance between the inside edge of the door and the pivot axis is independent of the size of the lever member. For example, the housing is configured to be mounted to the upper edge of the door leaf in a corner area between the inside edge and the upper edge of the door leaf.

[0022] In a preferred embodiment, both the base adjustment member and the lever adjustment member are operable from the inside edge.For example, the housing is configured to be mounted to the upper edge of the door leaf at a corner region between the inside edge and the upper edge of the door leaf.

[0023] In an embodiment, the base adjustment member includes a fastener, such as a threaded fastener, which can be operated through an opening in the inner plate of the shell, so that rotation of the fastener in one direction pushes the block of the slidable base member away from the inner edge, and rotation in the other direction pulls the block of the slidable base member toward the inner edge.

[0024] In an embodiment, the lever adjustment member includes a connecting block to which the second end of the lever member is coupled, wherein linear movement of the connecting block in a direction parallel to the top plate of the housing causes rotation of the lever member about the fulcrum, which in turn causes linear movement of the pivot pin in a vertical direction. Here, the lever adjustment member includes a fastener operable through an opening in the inner side plate of the housing, such that rotation of the fastener in one direction pushes the connecting block away from the inner side edge, and rotation in another direction pulls the connecting block toward the inner side edge.

[0025] In an embodiment, the housing is configured to be mounted via its top plate along the upper edge of the door leaf or along the corresponding edge of the structural element, for example in a door frame above the upper edge of the door leaf. In this context, the top plate has an elongated opening through which the pivot pin passes. Both the base adjustment member and the lever adjustment member can be operated from the top plate of the housing on the opposite side relative to the opening for the pivot pin. Due to the overall structure of this embodiment, the lever member and the associated lever adjustment member are located on one side of the pivot pin and the base adjustment member is located on the other side, so a relatively compact and sturdy pivot hinge can be obtained. For example, the pivot hinge can be mounted further towards the middle of the pivoting door leaf installation and / or in the middle of the pivoting door leaf, rather than in the corner area discussed herein with reference to other embodiments.

[0026] In an embodiment, the lever adjustment member includes a fastener rotatably mounted in a slidable base member perpendicular to a top plate of the shell, the fastener being operable from the top plate of the shell and connected to the second end of the lever member via a nut member, the nut member being able to move up and down by rotation of the fastener, thereby causing the lever member to pivot around a fulcrum.

[0027] In an embodiment, the base adjustment member includes an adjustment shaft perpendicular to the top plate of the housing and rotatably mounted in the housing, the adjustment shaft being operable from the top plate of the housing. In this context, the base adjustment member further includes a rotatable drive shaft parallel to the top plate of the housing, the drive shaft journal mounted in the housing and having one end connected to the adjustment shaft via a gear transmission, such as a bevel gear transmission, of the base adjustment member. The drive shaft has an opposite end threadedly connected to the block of the slidable base assembly, such that rotation of the adjustment shaft causes adjustment of the lateral position of the block and the pivot pin.

[0028] In a practical embodiment, the gear transmission is a bevel gear transmission.

[0029] In a practical embodiment, the adjustment shaft has a head end which is journalled in the top plate, for example the head end is provided with a hexagon socket.

[0030] In a practical embodiment, the housing comprises an inner side plate, a top plate having an opening through which the pivot pin passes, and an outer side plate.

[0031] For example, in an embodiment where the pivot hinge is mounted in a corner region of the door leaf, the inner side plate is configured to be mounted flush with the inner edge of the door leaf, and the top plate is flush with the upper edge of the door leaf. As described, preferably in this context, both the base adjustment member and the lever adjustment member are operable from the inner edge.

[0032] Preferably, the housing further comprises longitudinal side plates extending between the inner side plates and the outer side plates and a bottom plate, wherein the longitudinal side plates are each provided with inner ribs to slidably support a block of the slidable base member, for example the block is made of plastic.

[0033] The invention further relates to a pivoting door leaf provided with a pivot hinge according to the invention.The pivoting door leaf is rotatable about a vertical pivot axis and can thus be swung between an open position and a closed position, for example in two directions.

[0034] In an embodiment, the pivot hinge is mounted to an upper edge of the door leaf, for example in a corner region between an inner side edge and an upper edge of the pivoting door leaf.

[0035] The invention also relates to a pivot hinge according to claim 15, wherein the housing is configured to be mounted to the upper edge of the door leaf at a corner region between the inner edge and the upper edge of the door leaf, and wherein both the base adjustment member and the lever adjustment member are operable from the inner edge. Preferred optional features thereof are mentioned in dependent claims 16 to 18. The pivot hinge may also include one or more of the other features described herein.

[0036] The invention also relates to a pivot hinge according to claim 19, wherein the housing is configured to be mounted by its top plate along the upper edge of the door leaf or along the corresponding edge of the structural element, for example in a door frame above the upper edge of the door leaf, wherein the top plate has an elongated opening through which the pivot pin passes, and wherein both the base adjustment member and the lever adjustment member are operable from the top plate of the housing on opposite sides relative to the opening for the pivot pin. Preferred optional features thereof are mentioned in dependent claims 16 to 18. The pivot hinge may also include one or more of the other features as described herein from 20 to 22. The pivot hinge may also include one or more of the other features described herein.

[0037] A second aspect of the invention relates to a pivot hinge having a retractable pivot pin for pivotally connecting a pivoting door leaf to a structural element, the door leaf having an upper edge, a lower edge, an inner side edge and an outer side edge, and the pivot pin defining a vertical pivot axis, wherein the pivot hinge further comprises:

[0038] a housing configured to be mounted to a door leaf or a structural element, for example at a corner region between an inner side edge and an upper edge of the door leaf, for example at the upper edge of the door leaf, wherein a pivot pin is movably provided in a vertical channel in the housing,

[0039] A lever assembly adapted to move the pivot pin between a retracted position and an extended position, wherein the lever assembly is located within the housing, the lever assembly comprising:

[0040] a lever member having a first end engaged with the pivot pin, a fulcrum, and a second end,

[0041] A lever adjustment member is engaged with the second end of the lever such that operating the lever adjustment member causes the lever to pivot about the fulcrum, which in turn moves the pivot pin between the retracted position and the extended position.

[0042] In an embodiment of the second aspect, the lever member is located on an opposite side of the pivot pin relative to the lever adjustment member.

[0043] In an embodiment of the second aspect, the pivot hinge further comprises a slidable base member movably mounted in the housing, the slidable base member supporting the lever assembly, the vertical channel and the pivot pin, such that sliding of the base member adjusts the lateral position of the pivot pin relative to the door leaf or structural element. For example, the pivot hinge comprises a base adjustment member configured such that operating the base adjustment member causes the slidable base member to move in the housing, for example in a direction parallel to the upper edge. For example, the housing is configured to be mounted to the door leaf, and wherein the base adjustment member is operable from an inside edge.

[0044] In an embodiment of the second aspect, the slidable base member includes a block defining a vertical channel therein and having a sliding surface slidably engaged with the housing.

[0045] In an embodiment of the second aspect, the housing is provided with internal ribs to slidably support the slidable base member, such as a block thereof.

[0046] The invention further relates to a structural element and to a pivoting door leaf connected to the structural element via a pivot hinge as described herein, wherein the housing is mounted to the door leaf or to the structural element, for example in a corner region of the door leaf or more towards the middle at the upper edge of the door leaf, or in a door frame above the upper edge of the door leaf.

[0047] The invention further relates to a method for installing and / or disassembling a pivoting door leaf as described herein, wherein the method comprises the following steps:

[0048] operating the lever adjustment member to move the pivot pin between the retracted position and the extended position, and / or

[0049] The base adjustment member is operated to adjust the lateral position of the pivot pin relative to the door leaf or structural element, such as the distance between the inner edge and the pivot pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The present invention will be further explained with reference to the accompanying drawings, in which like reference numerals indicate like parts. In the drawings:

[0051] Figures 1A to 1C Schematically showing a perspective view, a top view and a side view of a pivot hinge according to the present invention in an extended state,

[0052] Figure 2 Schematically shows Figures 1A to 1C The pivot hinge in the extended state is along the cross section of CC,

[0053] Figure 3 Schematically shows Figures 1A to 1C The pivot hinge in the extended and adjusted state is along the cross section of CC,

[0054] Figure 4 Schematically shows Figures 1A to 1C The pivot hinge in the retracted and adjusted state is along the cross section of CC,

[0055] Figure 5 A perspective view schematically shows a pivot hinge according to the invention in an adjusted state,

[0056] Figure 6 Schematically shows Figures 1A to 1C The pivot hinge is along the perspective section of AA,

[0057] Figure 7 Schematically showing an exploded view of a pivot hinge according to the invention,

[0058] Figure 8 Schematically shows a pivoting door leaf provided with a pivot hinge according to the invention,

[0059] 9A to 9C A further embodiment of a pivot hinge according to the invention is schematically shown. DETAILED DESCRIPTION

[0060] exist Figures 1A to 1C, a pivot hinge 1 is shown having a retractable pivot pin 2 for pivotally connecting a pivoting door leaf with a structural element, the door leaf having an upper edge, a lower edge, an inner edge and an outer edge, the pivot pin 2 defining a vertical pivot axis P. It should be noted that in Figure 1C , the vertical pivot axis P coincides with line AA.

[0061] The pivot hinge 1 is shown further comprising a housing 10 which is configured to be mounted to a door leaf or a structural element, for example at a corner area between an inside edge and an upper edge of the door leaf, for example at an upper edge of the door leaf.

[0062] The housing 10 includes an inner plate 11 , a top plate 12 , and an outer plate 13 .

[0063] The housing 10 further includes longitudinal side panels 15 a , 15 b and a bottom panel 18 extending between the inner panel 11 and the outer panel 13 .

[0064] The longitudinal side panels 15 a , 15 b are each provided with inner ribs 16 .

[0065] The top plate 12 has an opening 14 through which the extended pivot pin 2 can protrude. In this embodiment, the opening 14 has an oval shape, but other shapes are also conceivable.

[0066] The pivot pin 2 is movably provided in a vertical passage 20 within the housing 10 .

[0067] exist Figure 2 The pivot hinge 1 shown in FIG. 1 comprises a lever assembly 30 .

[0068] The lever assembly 30 is located within the housing 10 and is adapted to allow the pivot pin 2 to be in a retracted position (eg Figure 4 ) and the extended position (e.g., Figures 1A to 1C , Figure 2 ). Figure 2 In FIG. 1 , the pivot pin 2 is in an extended position, wherein the pivot pin 2 protrudes outwardly from the housing 10 through the opening 14 in the top plate 12. Figure 4 In the embodiment shown in FIG. 1 , the pivot pin 2 is in a retracted position, wherein the pivot pin 2 is located within the housing 10 .

[0069] The lever assembly 30 has a lever member 31 having a first end 32 engaged with the pivot pin 2, a fulcrum 33, and a second end 34. Figure 7 As shown in FIG. 3 , the fulcrum 33 may be formed by a horizontal shaft 33a extending through a hole 33b in the lever member 31. In the example shown, the shaft 33a is fixed to the block 50 via a plate member 50b.

[0070] The lever adjustment member 35 can be operated from the inner edge of the door leaf. It is located in or near the inner plate 11 of the housing 10.

[0071] The lever adjusting member 35 engages with the second end 34 of the lever member 31 , whereby operating the lever adjusting member 35 causes the lever member 31 to pivot about the fulcrum 33 , which in turn moves the pivot pin 2 between the retracted position and the extended position.

[0072] exist Figure 2 3, the lever adjustment member 35 includes a connecting block 36 connected to the second end 34 of the lever member 31, where it pivots around a horizontal axis. The linear movement of the connecting block 36 in a direction parallel to the top plate 12 causes the lever member 31 to rotate around the fulcrum 33, which in turn causes the pin 2 to move linearly in the vertical direction.

[0073] like Figure 7 As shown in FIG. 3 , the shaft 36a is fixed to the connecting block 36 at the end remote from the adjustment member 35. The shaft 36a extends through a hole 36b in the lever member 31.

[0074] The lever member 31 is located on the opposite side of the pivot pin 2 with respect to the lever adjustment member 35 .

[0075] The adjustment member 35 includes a fastener 38 which is accessible through an opening 37 in the inner plate 11 of the housing 10. Rotation of the fastener 38 in one direction pushes the connection block 36 toward the outer edge, and rotation in the other direction pulls the block 36 toward the inner edge.

[0076] The fastener 38 extends perpendicularly to the inner plate 11 of the housing and is accessible through an opening 37 in the inner plate 11 for rotation of the fastener 38 .

[0077] The fastener 38 is implemented with a head of the fastener 38 which is rotatably held in a portion of the slidable base member, here a portion fixed to the block 50, and with a threaded rod extending from the head and screwed into a threaded nut portion 39 of the connecting block 36. Preferably, the head of the fastener 38 is provided with a hexagon socket.

[0078] The pivot hinge 1 further comprises a slidable base member movably mounted in the housing 10, the slidable base member supporting the lever assembly 30, the vertical channel 20 and the pivot pin 2, so that sliding of the base member adjusts the lateral position of the pivot pin relative to the door leaf or structural element. For example, when the pivot hinge 1 is mounted to a door leaf, for example, to a corner area between the inner side edge and the upper edge of the door leaf, the slidable base member is movably mounted in the housing 10 so that it can slide in a direction parallel to the upper edge.

[0079] The pivot hinge 1 comprises a base adjustment member 40, which is configured so that operating the base adjustment member 40 moves the slidable base member in a direction parallel to the upper edge of the door leaf, i.e., parallel to the top plate 12. The base adjustment member 40 can be operated from the inner edge of the door leaf when it is located in or near the inner plate 11 of the housing 10.

[0080] The base adjustment member 40 includes a fastener 41 that is accessible through an opening 42 in the inner panel 11 of the housing 10 .

[0081] The fastener 41 is implemented with a head of the fastener which is rotatably held in the side plate 11 of the housing. The fastener 41 has a threaded rod 43 which extends from the head and is screwed into a threaded hole of the block 50. Preferably, the head of the fastener 41 is provided with a hexagon socket.

[0082] The rotation of the fastener 41 in one direction pushes the block 50 toward the outer edge plate 13, and the rotation in the other direction pulls the block 50 toward the inner edge plate 11. In this way, the distance between the inner edge and the pivot pin 2 is adjusted. That is, according to the rotation of the fastener 41, the vertical channel 20, the pivot pin 2 and the lever assembly 30 move toward the inner edge or toward the outer edge. The latter can be adjusted when the inner edge is adjusted. Figure 3 and Figure 5 and Figures 1A to 1C and Figure 2 Compare and see.

[0083] When the fastener 41 is operated, the fastener 35 is also moved in the longitudinal direction of the housing. However, the lever member 31 remains in its actual position until the fastener 38 is operated.

[0084] exist Figure 3 It is shown in Figures 1A to 1C The pivot hinge 1 is along the cross section CC.

[0085] exist Figure 5 A perspective view of a pivot hinge is shown in FIG. Figure 3 and Figure 5 In the embodiment shown in FIG. 1 , the pivot pin 2 is in an extended state and protrudes from the top plate 12 through the opening 14. The opening 14 is a slot opening that allows all lateral positions of the pivot pin.

[0086] In addition, from Figure 3 As can be seen in FIG. 1 , the vertical channel 20, the pivot pin 2 and the lever assembly 30 are arranged relative to each other in Figure 2 is positioned further toward the outer edge. Similarly, Figure 5In the embodiment, the pivot pin 2 is positioned further toward the outer side edge. This adjustment state is achieved by configuring the base adjustment member 40 so that operating the base adjustment member 40 causes the slidable base member to move in a direction parallel to the upper edge of the door leaf.

[0087] exist Figure 6 It is shown in Figures 1A to 1C A perspective section of the pivot hinge 1 along line AA, Figure 7 There is shown an exploded view of the pivot hinge 1. It can be seen that the slidable base member comprises a block 50 made of a low friction material such as plastic.

[0088] The block 50 defines the vertical passage 20 therein and has sliding surfaces 51 , 52 that are slidably engaged with the housing 10 .

[0089] exist Figure 6 and Figure 7 The housing 10 is shown to be provided with internal ribs 16 to slidably support a slidable base member, here a block 50 thereof.

[0090] In more detail, the housing 10 has longitudinal side plates each provided with an inner rib 16 to slidably support the block of the slidable base member.

[0091] As shown, a portion of the block 50 is slidably received in an elongated recess in the top plate 12 of the housing.

[0092] like Figure 7 As shown in , the longitudinal side panels can be combined with a bottom panel of the housing in the form of a channel profile having an open top covered by a top panel and open ends closed by inner and outer side panels, respectively.

[0093] exist Figure 8 6 shows a pivoting door leaf 60 provided with a pivot hinge 1. The door leaf 60 has an upper edge 63, a lower edge 64, an inner edge 61 and an outer edge 62. The door leaf 60 is mounted in an opening between walls 80, 81 and is pivotally connected to a ceiling 82 by means of the pivot hinge 1.

[0094] The pivot hinge 1 is mounted in the corner region between the inside edge 61 and the upper edge 63 of the pivoting door leaf. The pivot hinge 1 may be provided inside the door leaf 60 and / or may form the outer contour of the door leaf 60 in said corner region. In the case where the pivot hinge is completely inside, an opening may be provided in the inside edge 61 of the door to allow access to the lever adjustment member 35 and / or the base adjustment member 40.

[0095] The pivot pin 2 defines a vertical pivot axis P and projects into an opening in the top plate 83 in the extended position. The vertical pivot axis P is located at a distance d from the inner edge. This distance can be adjusted by the base adjustment member 40. It should be noted that in Figure 8 , the vertical pivot axis P is located relatively close to the inner edge 61 of the door leaf 60. It is conceivable that the vertical pivot axis P is located further toward the central axis of the door leaf 60 and / or coincides with it.

[0096] A method for installing and / or removing a pivoting door leaf 60 comprises the following steps:

[0097] operating the lever adjustment member 35 to move the pivot pin 2 between the retracted position and the extended position, and / or

[0098] The base adjustment member 40 is operated to adjust the lateral position of the pivot pin relative to the door leaf or structural element, such as the distance d between the inner edge and the pivot pin.

[0099] exist 9A to 9C Another embodiment of a pivot hinge 100 according to the present invention is shown in FIG. Figure 7 1 to 10. Alternatively, it is conceivable that the pivot hinge 100 has a housing which is configured with its top plate 112 mounted along the upper edge of the door leaf or along a corresponding edge of a structural element, for example mounted in a door frame above the upper edge of the door leaf. Figure 7 Compared to the embodiment of the present invention, the pivot axis is positioned further towards the middle of the door leaf and thus further away from the inner edge of the door leaf.

[0100] Fig. 9A The embodiments to Figure 9D are particularly suitable for mounting the housing to a structural element above a door leaf, for example in a door frame portion extending above the door leaf.

[0101] Mounting the pivot hinge 100 to a structural element instead of to a door leaf has an impact on the mechanical loads that have to be absorbed by the pivot hinge and its components. In particular, when the pivot hinge is mounted to a door leaf, the weight of the door leaf always acts in the same plane relative to the pivot hinge, since the pivot hinge swings together with the door leaf. When the pivot hinge is mounted to a structural element, this load acting on the pivot hinge by the door leaf has a changing direction when the door is opened and closed, subjecting the components of the pivot hinge to increased mechanical fatigue loads. The design of the pivot hinge disclosed herein, and in particular the design of the pivot hinge 100, allows for the absorption of such loads.

[0102] The pivot hinge 100 includes a retractable pivot pin 102 that defines a vertical pivot axis.

[0103] The pivot hinge 100 further comprises a housing 110 which is configured to be mounted to a door leaf or a structural element, for example at an upper edge of the door leaf, or to a structural element above the door leaf.

[0104] The housing includes an inner plate 111 , a top plate 112 , an outer plate 113 , longitudinal side plates 115 a , 115 b extending between the inner plate 111 and the outer plate 113 , and a bottom plate 118 .

[0105] The longitudinal side plates 115 a , 115 b are each provided with an inner rib 116 to slidably support the block 150 .

[0106] The block 150 is part of a slidable base member that is movably mounted within the housing 110 such that sliding movement of the base member including the block 150 adjusts the lateral position of the pivot pin 102 relative to the door leaf or structural element.

[0107] The slidable base member includes a block 150 defining a vertical channel 120 therein. The block 150 has a sliding surface slidably engaged with the housing, preferably at least the longitudinal side panels 115a, 115b and the top panel 112, to provide stability to the block 150.

[0108] Preferably, block 150 is made of plastic or another low friction material.

[0109] The pivot pin 102 is able to move vertically in the vertical channel 120 of the block 150 .

[0110] The pivot hinge 100 also includes a base adjustment member 140 configured such that operating the base adjustment member causes a slidable base member including a block 150 to move within the housing in a direction parallel to the top plate 112 .

[0111] The pivot hinge 100 also includes a lever assembly 130 adapted to move the pivot pin 102 between its retracted and extended positions. Fig. 9A , Fig. 9B Shown in extended position.

[0112] The lever assembly 130 is located entirely within the housing 110 and is supported by a slidable base member.

[0113] The lever assembly 130 includes:

[0114] A lever member 131 having a first end 132 engaged with the pivot pin 102, a fulcrum 133 on a slidable base, and a second end 134,

[0115] The lever adjusting member 135 is engaged with the second end 134 of the lever member 131, so that operating the lever adjusting member 135 causes the lever member 131 to pivot about the fulcrum 133, which in turn moves the pivot pin 102 between the retracted position and the extended position.

[0116] As shown, the lever member 131 is located on the same side of the pivot pin 102 as the lever adjustment member 135 .

[0117] The top plate 112 has a slot opening 114 through which the pivot pin 102 passes at any given lateral position of the pivot pin 102 .

[0118] The base adjustment member 140 and the lever adjustment member 135 are shown to be both operable from the top plate 112 of the housing on opposite sides of the opening 114 of the pivot pin 102 .

[0119] The lever adjustment member 135 includes a fastener rotatably mounted in a slidable base member perpendicular to the top plate 112 of the housing. The fastener 135 can be operated from the top plate 112 of the housing and is connected to the second end 134 of the lever member 131 via a nut member 138, and the nut member 138 can be moved up and down by the rotation of the fastener 135, so that the lever member 131 pivots around the fulcrum 133.

[0120] The fastener 135 has a head, here with an internal hexagon, and a threaded shank extending from the head. The shank extends through a threaded hole in a nut member 138. The head of the fastener is accessible via an opening 137 in the top plate 112, which is elongated so that the head, such as the internal hexagon therein, can be accessed to rotate the fastener 135 in any lateral position of the slidable base assembly within the housing.

[0121] The nut member 138 is connected to the second end 132 of the lever member 131 via a pin-and-slot connection 139 .

[0122] The base adjustment member 140 includes an adjustment shaft 141 which is rotatably mounted in the housing perpendicular to the top plate 112 of the housing. The adjustment shaft can be operated from the top plate 112 of the housing.

[0123] The pivot hinge 100 also includes a rotatable drive shaft 145 that extends within the housing and parallel to the housing's top plate 112. The drive shaft 145 is journaled in the housing 110 so as to be rotatable about its axis but not movable in its axial direction.

[0124] The drive shaft 145 has an outer end which is connected to the adjustment shaft 140 via a gear transmission 147, here via a bevel gear transmission having gears 147a, 147b. The opposite end of the drive shaft 145 is threadedly connected to the block 150, here having a threaded shaft portion which is screwed into a threaded hole in the block, so that rotation of the adjustment shaft 140 causes adjustment of the lateral position of the block and the pivot pin.

[0125] As shown, the adjustment shaft 140 preferably has a head end 141 a journaled in the top plate 112 , for example, the head end is provided with a hexagon socket.

[0126] By providing the base adjustment member 140 cooperating with the drive shaft 145 and the gear transmission 147, the block 150 can be reliably maintained in a selected lateral position even when subjected to cyclic mechanical loads through opening and closing of the door leaf.

Claims

1. A pivot hinge (1; 100) having a retractable pivot pin (2; 102) for pivotally connecting a pivoting door leaf to a structural element, the door leaf having an upper edge, a lower edge, an inner edge and an outer edge, and the pivot pin defining a vertical pivot axis, Wherein the pivot hinge further comprises: a housing (10; 110) configured to be mounted to the door leaf or the structural element, for example at the upper edge of the door leaf, for example at a corner region between the inner edge and the upper edge of the door leaf, A slidable base member movably mounted within the housing such that sliding movement of the base member adjusts the lateral position of the pivot pin (2; 102) relative to the door leaf or the structural element, wherein the slidable base member comprises a block (50; 150) defining a vertical channel therein and having a sliding surface slidably engaged with the housing, and wherein the pivot pin (2; 102) is movably provided in the vertical channel of the block, a base adjustment member (40, 41; 141) configured such that operation of the base adjustment member causes the slidable base member to move within the housing, a lever assembly adapted to move the pivot pin between a retracted position and an extended position, wherein the lever assembly is located within the housing and supported by the slidable base member, the lever assembly comprising: a lever member (31; 131) having a first end engaged with the pivot pin (2; 102), a fulcrum (33; 133) and a second end (32; 132); A lever adjustment member (35; 135) engages with the second end of the lever member such that operation of the lever adjustment member causes the lever member to pivot about the fulcrum (33; 133), which in turn moves the pivot pin between the retracted position and the extended position.

2. A pivot hinge according to claim 1, wherein the housing is provided with internal ribs (16; 116) to slidably support the block (50; 150) of the slidable base member.

3. A pivot hinge according to claim 1 or 2, wherein the block (50; 150) of the slidable base member is slidably received through a portion thereof in an elongated recess in the top plate of the housing.

4. A pivot hinge according to any one or more of claims 1 to 3, wherein the base adjustment member (40, 41) is operable from the inner edge of the door leaf, for example, wherein the housing (10) is configured to be mounted to the upper edge of the door leaf at a corner area between the inner edge and the upper edge of the door leaf.

5. A pivot hinge according to any one or more of claims 1 to 4, wherein the lever adjustment member (35) is operable from the inner edge of the door leaf, and wherein the lever member (31) is located on the opposite side of the pivot pin (2) relative to the lever adjustment member (35), for example, wherein the housing (10) is configured to be mounted to the upper edge of the door leaf at a corner area between the inner edge and the upper edge of the door leaf.

6. A pivot hinge according to any one or more of claims 1 to 5, wherein the base adjustment member (40, 41) and the lever adjustment member (35) are each operable from the inner edge of the door leaf, for example, wherein the housing (10) is configured to be mounted to the upper edge of the door leaf at a corner area between the inner edge and the upper edge of the door leaf.

7. A pivot hinge according to claim 4, wherein the base adjustment member (40) includes a fastener (41), which can be operated through an opening (42) in the inner plate (11) of the shell (10), so that rotation of the fastener (41) pushes the block (50) of the slidable base member away from the inner edge, or pulls the block (50) of the slidable base member toward the inner edge.

8. A pivot hinge according to claim 5, wherein the lever adjustment member (35) is engaged with a connecting block (36), the second end (34) of the lever member is connected to the connecting block (36), and wherein the linear movement of the connecting block (36) in a direction parallel to the top plate (12) of the shell causes the lever member (31) to rotate around the support shaft (33), which in turn causes the pivot pin (2) to move linearly in the vertical direction, and wherein the lever adjustment member (35) includes a fastener (38), which can be operated through an opening (37) in the inner plate (11) of the shell (10), so that the rotation of the fastener (38) pushes the connecting block (36) away from the inner edge, or pulls the connecting block (36) toward the inner edge.

9. A pivot hinge according to any one or more of claims 1 to 3, wherein the housing (110) is configured so that its top plate (112) is mounted along the upper edge of the door leaf or along the corresponding edge of the structural element, for example in a door frame above the upper edge of the door leaf, wherein the top plate has an elongated opening (114) through which the pivot pin (102) passes, and wherein the base adjustment member (140, 141) and the lever adjustment member (135) are each capable of being operated from the top plate (112) of the housing on the opposite side relative to the opening (114) for the pivot pin (102).

10. A pivot hinge according to claim 9, wherein the lever adjustment member (135) includes a fastener rotatably mounted in the slidable base member (150) perpendicular to the top plate of the shell, the fastener being operable from the top plate (112) of the shell and connected to the second end (134) of the lever member (131) via a nut member (138), the nut member (138) being able to move up and down by rotation of the fastener (135), thereby causing the lever member (131) to pivot around the fulcrum (133).

11. A pivot hinge according to claim 9 or 10, wherein the base adjustment member (140) includes an adjustment shaft (141) rotatably mounted in the housing perpendicular to the top plate (112) of the housing, the adjustment shaft being operable from the top plate (112) of the housing, and wherein the pivot hinge further includes a rotatable drive shaft (145) parallel to the top plate (112) of the housing, the drive shaft (145) being journalled in the housing and having one end connected to the adjustment shaft (141) via a gear transmission (147), such as a bevel gear transmission (147a, b), of the base adjustment member, and wherein the drive shaft (145) has an opposite end threadedly connected to the block (150) of the slidable base assembly, so that rotation of the adjustment shaft (141) causes adjustment of the lateral position of the block (140) and the pivot pin (102).

12. The pivot hinge according to claim 11, wherein the gear transmission is a bevel gear transmission (147a, b).

13. Pivot hinge according to claim 11 or 12, wherein the adjustment shaft (141) has a head end (141a) journalled in the top plate, for example provided with a hexagon socket.

14. A pivot hinge according to any one or more of claims 1 to 13, wherein the housing (10; 110) comprises an inner panel (11; 111), a top panel (12; 112), an outer panel (13; 113), longitudinal side panels (15a, b; 115a, b) extending between the inner panel and the outer panel, and a bottom panel (18; 118), wherein the longitudinal side panels are each provided with inner ribs (16; 116) for slidably supporting the block (50; 150) of the slidable base member.

15. A pivot hinge (1) having a retractable pivot pin for pivotally connecting a pivoting door leaf to a structural element, the door leaf having an upper edge, a lower edge, an inner edge and an outer edge, and the pivot pin defining a vertical pivot axis, wherein the pivot hinge further comprises: a housing (10) configured to be mounted to the door leaf, for example in a corner region between the inner edge and the upper edge of the door leaf, a slidable base member movably mounted within the housing such that sliding movement of the base member adjusts the lateral position of the pivot pin relative to the door leaf or the structural element, wherein the slidable base member comprises a block (50) defining a vertical channel (20) therein and having a sliding surface for sliding engagement with the housing, and wherein the pivot pin (2) is movably provided in the vertical channel of the block (50), a base adjustment member (40, 41) configured such that operation of the base adjustment member causes the slidable base member to move in the housing, for example in a direction parallel to the upper edge of the door leaf, A lever assembly (30) adapted to move the pivot pin (2) between a retracted position and an extended position, wherein the lever assembly is located within the housing (10) and supported by the slidable base member, the lever assembly comprising: a lever member (31) having a first end engaged with the pivot pin, a fulcrum (33) and a second end (34), a lever adjustment member (35, 38) engaged with the second end (34) of the lever member (31) such that operation of the lever adjustment member (35, 38) causes the lever member (31) to pivot about the fulcrum (33), which in turn causes the pivot pin (2) to move between the retracted position and the extended position, The base adjustment member (40, 41) and the lever adjustment member (35, 38) are each operable from the inner edge (11) of the door leaf.

16. The pivot hinge (1) according to claim 15, wherein the housing (10) comprises an inner panel (11) for mounting along the inner edge of the door leaf and a top panel (12) for mounting along the upper edge of the door leaf.

17. A pivot hinge (1) according to claim 15 or 16, wherein the base adjustment member (40) includes a fastener (41), the fastener (41) being implemented with a head rotatably retained in the inner plate (11) of the shell, the fastener (41) having a threaded rod (43) extending from the head and screwed into a threaded hole of the block (50) of the slidable base member, so that rotation of the fastener (41) pushes the block of the movable base member away from the inner side or pulls the block (50) of the slidable base member toward the inner plate.

18. A pivot hinge (1) according to any one or more of claims 15 to 17, wherein the lever adjustment member (35) comprises a fastener (38) embodied with a head and a threaded rod extending from the head, the head being rotatably retained in a portion of the slidable base member, for example fixed to a portion of the block (50), wherein the pivot hinge (1) further comprises a linearly movable connecting block (36), the connecting block (36) being movable parallel to the top plate (12) and being provided at one end thereof with a threaded hole into which the rod of the fastener (38) is screwed, the connecting block (36) being pivotally connected at its other end to the second end (34) of the lever member (31), The fastener (38) of the lever adjustment member (35) is operable through an opening (37) in an inner plate (11) of the housing (10), so that rotation of the fastener (38) causes linear movement of the connecting block (36), thereby causing rotation of the lever member (31) around the fulcrum (33), which in turn causes linear movement of the pivot pin (2) in the vertical direction.

19. A pivot hinge (100) having a retractable pivot pin (102) for pivotally connecting a pivoting door leaf to a structural element, the door leaf having an upper edge, a lower edge, an inner edge and an outer edge, and the pivot pin defining a vertical pivot axis, Wherein the pivot hinge further comprises: a housing (110) configured to be mounted by its top plate (112) along the upper edge of the door leaf or along a corresponding edge of the structural element, for example in a door frame above the upper edge of the door leaf, wherein the top plate has an elongated opening (114) through which the pivot pin (102) passes, a slidable base member movably mounted within the housing such that sliding movement of the base member adjusts the lateral position of the pivot pin (102) relative to the door leaf or the structural element, wherein the slidable base member comprises a block (150) defining a vertical channel (120) therein and having a sliding surface for sliding engagement with the housing, and wherein the pivot pin (102) is movably provided in the vertical channel of the block (150), a base adjustment member (140) configured such that operation of the base adjustment member causes the slidable base member to move within the housing, A lever assembly (130) adapted to move the pivot pin (102) between a retracted position and an extended position, wherein the lever assembly is located within the housing and supported by the slidable base member, the lever assembly comprising: a lever member (131) having a first end (132) engaged with the pivot pin, a fulcrum (133) and a second end (134), a lever adjustment member (135) engaged with the second end (134) of the lever member (131) such that operation of the lever adjustment member causes the lever member (131) to pivot about the fulcrum, which in turn causes the pivot pin to move between the retracted position and the extended position, The base adjustment member (140; 141) and the lever adjustment member (135) are each operable from the top plate (112) of the housing at opposite sides relative to the opening (114) therein for the pivot pin (102).

20. The pivot hinge (100) according to claim 19, wherein: The lever adjustment member includes a fastener (135) rotatably mounted in the slidable base member (150a) perpendicular to the top plate (112) of the shell, the fastener (135) being operable from the top plate of the shell and connected to the second end (134) of the lever member (131) via a nut member (138), the nut member (138) being able to move up and down by rotation of the fastener (135), thereby causing the lever member (131) to pivot around the fulcrum (133), which in turn causes the pivot pin (102) to move linearly in the vertical direction, for example, wherein the nut member is connected to the second end of the lever member (131) via a pin groove connection.

21. A pivot hinge (100) according to claim 19 or 20, wherein the base adjustment member (140) includes an adjustment shaft (141) rotatably mounted in the housing (100) perpendicular to the top plate (112) of the housing, the adjustment shaft (141) being operable from the top plate (112) of the housing (100), wherein the pivot hinge further includes a rotatable drive shaft (145) parallel to the top plate of the housing, the drive shaft (145) being journalled in the housing (100) and having one end connected to the adjustment shaft via a gear transmission device (147), such as a bevel gear transmission device (147a, b), and wherein the drive shaft (145) has an opposite end screwed into a threaded hole of the block (150) of the slidable base assembly by means of a thread, so that rotation of the adjustment shaft (145) causes adjustment of the lateral position of the block (150) and the pivot pin (102).

22. A pivot hinge according to claim 21, wherein the gear transmission is a bevel gear transmission (147a, b).

23. A pivoting door leaf provided with a pivot hinge (1; 100) according to any one or more of the preceding claims.

24. Pivoting door leaf according to claim 23, wherein the pivot hinge is mounted to the upper edge of the door leaf, for example in a corner area between the inner edge and the upper edge of the pivoting door leaf.

25. A structural element and a pivoting door leaf, the pivoting door leaf being connected to the structural element via a pivot hinge (1; 100) according to any one or more of the preceding claims, wherein the housing is mounted to the door leaf or the structural element, for example at the upper edge of the door leaf or in a door frame above the upper edge of the door leaf.

26. A method of installing and / or removing a pivoting door leaf according to any one of claims 23, 24 or 25, wherein the method comprises the following steps: operating the lever adjustment member to move the pivot pin between the retracted position and the extended position, and / or The base adjustment member is operated to adjust the lateral position of the pivot pin relative to the door leaf or the structural element, such as the distance between the inner edge and the pivot pin.

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