GB2620359A

GB2620359A - Adjustable Hinge

Info

Publication number: GB2620359A
Application number: GB2206133.7A
Authority: GB
Inventors: Menear Robert
Original assignee: Era Home Security Ltd
Current assignee: Era Home Security Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2024-01-10
Also published as: CN220504816U; IE20230124A2; GB202206133D0

Abstract

A hinge having a first portion 2 for fixing to a frame and a second portion 4 for fixing to the door or window leaf, and a hinge pin 24 defining a hinge pin axis ‘A’. The first and second portions are pivotally moveable relative to each other. The hinge has a compression adjustment to move the hinge pin linearly relative to the first portion in a direction substantially perpendicular to the hinge pin axis. The hinge allows for compression adjustment independently of lateral adjustment. Preferably compression adjustment includes a first adjustment block 26 connected or integral with the hinge pin, a nut 34 and a threaded pin 30 accessible through knuckle 40 via bore 42 to drive the hinge pin in compression direction. A second adjustment block 58 may be provided. Also claimed is a method of assembly a hinge by inserting a hinge pin whereby a hinge pin is inserted and secured in place by a block retainer 67, the retainer may include a clip.

Description

Adjustable Hinge

Field of Invention

The invention relates to a hinge for mounting a door or window leaf to a frame.

Specifically, the invention relates to a hinge used for a door or window of largely plastic construction, such as those formed from uPVC, and which allows for a compression adjustment.

Background

Door and window leafs made out of plastic, typically uPVC plastic, are commonly fitted to both commercial and domestic buildings. One or more hinges are used to connect the door or window leaf to the surrounding frame, forming a door or window assembly. Such hinges are typically not individually tailored to a customer's specific frame and door or window leaf dimensions. Therefore, it is important that a single hinge can be used on a variety of door or window assemblies. This is usually achieved by allowing the hinge to be adjusted in three orthogonal linear directions; vertically, laterally (i.e. within the plane of the door window leaf when closed), and in compression (i.e. perpendicular to the plane of the door or window leaf when closed). Once mounted to the frame and the door or window leaf, the hinge can be adjusted to ensure that the door or window leaf fits properly within the corresponding frame.

The compression adjustment of the hinge is crucial, as modern door arrangements incorporate seals that are compressed between the door or window leaf and the surrounding frame, when the door or window is closed. Correctly compressed seals provide essential weatherproofing, thereby preventing any draughts and damp from penetrating into the building.

In known door or window assemblies, the compression adjustment is controlled by rotation of an eccentric hinge pin mounted within the hinge. One problem with using an eccentric hinge pin is that its rotation will inevitably move the door or window leaf in two dimensions (usually laterally and in compression). Thus, a side effect of attempting to adjust the compression position of the door or window leaf is that the lateral position is also affected. This is undesirable, as a subsequent lateral adjustment must be made to compensate for the lateral displacement. This not only complicates the method of mounting the hinge, but it also makes it more difficult for a customer to ensure that the seals of the door or window assembly are correctly compressed.

This background description is provided to generally present the context of the disclosure. Unless otherwise indicated herein, material described in this section is neither expressly nor impliedly admitted to be prior art to the present disclosure or the appended claims.

Summary of Invention

The present invention attempts to resolve or ameliorate one or more of the problems associated with adjustable hinges for windows and doors, or provide a useful alternative.

According to a first aspect of the invention, there is provided a hinge for mounting a door or window leaf to a frame. The hinge may comprise a first portion for fixing to the frame. The hinge may comprise a second portion for fixing to the door or window leaf. The hinge may comprise a hinge pin. The hinge pin may define a hinge pin axis. The hinge pin may connect the first and second portions, such that the first and second portions are pivotally moveable relative to each other. The hinge may comprise a compression adjustment mechanism. The compression adjustment mechanism may be configured to move the hinge pin linearly relative to the first portion in a direction substantially perpendicular to the hinge pin axis.

The compression adjustment mechanism may be configured to move the hinge pin in a compression direction. The movement of the hinge pin may be configured to linearly move the second portion relative to the first portion. The compression direction may be perpendicular to a vertical and lateral directions. The compression direction may be perpendicular to the hinge pin axis. The compression direction may be perpendicular to the plane of the door or window leaf when closed. The vertical and lateral directions may be parallel to the plane of the door or window leaf when closed. The vertical direction may be parallel to the hinge pin axis. The compression adjustment mechanism may be configured to move the hinge pin in the compression direction independently of both the vertical and lateral directions.

Advantageously, the compression adjustment mechanism allows the hinge pin, the second portion and/or the door or window leaf to be moved relative to the first portion and/or the frame in the compression direction. This allows the door or window leaf to be correctly fitted within the frame. The correct fitting ensures that seals between door or window leaf and the frame are sufficiently compressed to provide good weatherproofing, when the door or window leaf is closed.

It is also advantageous for the compression adjustment mechanism to move the hinge pin (and consequently the second portion and/or the door or window leaf) linearly in the compression direction independently of both the vertical and lateral directions. This simplifies the method of mounting and adjusting the hinge. The user can independently adjust the hinge in three separate directions (vertically, laterally and in compression). For example, while adjusting the hinge in the compression direction, the user does not have to implement additional hinge adjustments to compensate for any undesirable displacement of the hinge pin, the second portion and/or the door or window leaf in the vertical or lateral directions relative to the first portion.

The compression adjustment mechanism may be at least partially located within the first portion. For example, the compression adjustment mechanism may be housed within the first portion during use.

The first portion may comprise a first housing. The first housing may define a first chamber. The first housing may comprise a first aperture. The first portion may optionally comprise a second housing. The second housing may define a second chamber. The second housing may comprise a second aperture. The hinge pin may extend through the first aperture and optionally the second aperture.

The compression adjustment mechanism may be located within the first and/or second chamber defined by the first and/or second housing.

The first aperture may be formed in a side of the first housing. A first plate comprising the first aperture may form part of or be connected to the first housing. The first plate may form a closure at one side of the first chamber defined by the first housing. The second aperture may be formed in a side of the second housing. A second plate comprising the second aperture may form part of or be connected to the second housing.

The second plate may form a closure at one side of the first chamber defined by the first housing. The first aperture and the second aperture may be aligned, so as to form a hinge pin channel. The hinge pin may extend through the hinge pin channel. The hinge pin may be at least partially located within the first chamber defined by the first housing and optionally the second chamber defined by the second housing.

The first and/or second aperture may have a length in the compression direction. The first and/or second aperture may have a substantially oval, elliptical or rectangular shape. The hinge pin may have a substantially circular cross-section. The cross section of the hinge pin may be smaller than the size of the first and/or second aperture so that the hinge pin is moveable (e.g. linearly moveable) within the first and/or second aperture.

The compression adjustment mechanism may be configured to move the hinge pin within the first aperture and/or within the second aperture. The compression adjustment mechanism may be configured to move the hinge pin along the length of the first and/or second aperture.

The compression adjustment mechanism may comprise a first adjustment block. The first adjustment block may be connected to or integrally formed with the hinge pin. The compression adjustment mechanism may comprise a first adjustment pin. The first adjustment pin may be moveably engaged within the first adjustment block. The movement of the first adjustment pin may move the first adjustment block and the hinge pin relative to the first portion.

The first adjustment block being formed integrally with the hinge pin is advantageous, since both of the elements can be formed out of a single moulding. The manufacture of the hinge pin and the first adjustment block is thus be simplified.

The first adjustment pin may comprise a threaded portion. The first adjustment block may comprise a first threaded channel for cooperating with the threaded portion. The first adjustment pin may comprise a non-threaded portion. The non-threaded portion may have a non-circular cross-section. For example, the cross-section may be polygonal (e.g. square or hexagonal) and may have rounded corners.

A rotation of the first threaded portion within the first threaded channel of the first adjustment block may be configured to move the first adjustment block relative to the first portion e.g. in the compression direction. In one example the first adjustment pin comprises a head with a recess for receiving a tool (e.g. a screwdriver or Allen key) for rotating the first adjustment pin within the first threaded channel.

Alternatively, other mechanisms may be used to move the first adjustment block and the hinge pin in the compression direction. In one example, the first adjustment block may be moved using a rack and pinion type mechanism. The first adjustment block may comprise the rack. And rotation of the pinion may drive the first adjustment block in the compression direction. In a further example, a cam and follower mechanism may be used. The first adjustment block may comprise a cam follower and rotation of the cam may drive the follower and the first adjustment block in the compression direction.

The compression adjustment mechanism may further comprise a first nut. The first nut may be configured to engage sides of the non-threaded portion of the first adjustment pin. The first nut may comprise an opening for receiving an end of the first adjustment pin. The nut may be resilient and/or flexible, such that rotation of the pin within the opening is restricted but possible on applying a torque to the pin. The first nut is advantageous because it ensures that the first adjustment pin remains in its orientation following an adjustment (i.e. rotation) and preventing any undesired rotation over time.

The first nut may be made out of a synthetic plastics material e.g. nylon. Synthetic plastics materials are advantageous, since they can resiliently deform around the first adjustment pin during rotation. Synthetic plastics materials provides an additional benefit of rust resistance. Nylon is particularly desirable due to excellent self-lubricating properties.

The first adjustment block, and/or the first adjustment pin may be at least partially located within the first chamber defined by the first housing. The first housing may comprise a first passage for accessing and moving the first adjustment pin. The first passage may comprise an opening in the body of the first housing.

The hinge may further comprise a first cover. The first cover may be locatable over the first housing to cover the first passage during use. The first cover may be made out of a resistant material e.g. metal or a hard plastic. The first cover may be removable e.g. to access and adjust the first adjustment pin. The first cover provides a useful protection for the compression adjustment mechanisms. In some embodiments, the first cover may prevent unauthorised users from accessing the compression adjustment mechanism.

The first cover also conceals the compression adjustment mechanism, providing the hinge with a more aesthetically appealing look.

The compression adjustment mechanism may further comprise a second adjustment block. The second adjustment block may comprise an opening for receiving an end of the hinge pin therein. The compression adjustment mechanism may further comprise a second adjustment pin. The second adjustment pin may be movably engaged within the second adjustment block. The movement of the second adjustment pin may move the second adjustment block and the hinge pin relative to the first portion.

The second adjustment pin may be the same as the first adjustment pin described above.

The second adjustment block may comprise a second threaded channel for cooperating with a second threaded portion. The second adjustment block and second adjustment pin may operate in the same way as the first adjustment block and pin described above.

The compression adjustment mechanism (e.g. the second adjustment block) may further comprise a block retainer. The block retainer may comprise a second nut, similar to the first nut described above. The block retainer may comprise a retaining element for engaging with the first portion. The retaining element may be configured to maintain the block retainer within the first portion of the hinge during use.

The retaining element may comprise a male portion. The first portion of the hinge may comprise a female portion. The male portion may be configured to engage the female portion of the first portion during use. The male portion and the female portion may comprise a snap-fit joint. The snap fit joint may comprise a cantilever, torsional or annular snap-fit joint. The retaining element may comprise a clip or a hook.

The block retainer may further comprise a metal plate. The metal plate may be configured to abut an end of the second adjustment pin. The metal plate may be configured to act against the end of the second adjustment pin as it is moved e.g. rotated.

Advantageously, the metal plate provides a wear resistant surface for the second adjustment pin to act upon, thereby providing additional structural integrity and allowing the second adjustment pin to reliably move the second adjustment block.

The second adjustment block may be at least partially located within the second chamber defined by the second housing. The second adjustment pin may be at least partially located within the second chamber defined by the second housing.

The block retainer may be configured to maintain the second adjustment block and optionally the second adjustment pin within the second chamber defined by the second housing during use.

The second housing may comprise a second passage for accessing and moving the second adjustment pin. The second passage may comprise an opening in the body of the second housing. The hinge may further comprise a second cover. The second cover may be the same as the first cover described above.

The second portion may comprise a barrel. The barrel may comprise a channel for receiving the hinge pin, such that the second portion is pivotally moveable relative to the hinge pin about the hinge pin axis.

The barrel may be located between the first housing and the second housing. The barrel may be located between the first aperture and the second aperture. A first end of the barrel may be adjacent to the first aperture and the second end of the barrel may be adjacent to the second aperture. The channel of the barrel may have a substantially circular cross-section. The cross-section of the channel may be large enough to allow the hinge pin to pass through the channel. The hinge pin may be configured to extend through the first aperture, the channel of the barrel and the second aperture during use.

The second portion may further comprise a flag. The flag may be connected to or integrally formed with the barrel. The flag may extend perpendicularly to the hinge pin axis. The flag may be connectable to the door or window leaf. For example, the flag may be connected to the door or window leaf using one or more fasteners. Alternatively, the flag may be connected to the door or window leaf using an adhesive.

According to a second aspect of the invention, there is provided a door or window assembly. The door or window assembly may comprise a door or window leaf. The door or window leaf assembly may comprise a hinge as described herein.

According to a third aspect of the invention, there is provided a method of adjusting a position of a door or window leaf relative to a frame using a hinge described herein. The method may comprise fixing the first portion to the frame. The method may comprise fixing the second portion to the door or window leaf. The method may comprise adjusting the compression adjustment mechanism. Adjusting the compression adjustment mechanism may linearly move the hinge pin, the second portion and the door or window leaf relative to the first portion in a direction substantially perpendicular to the hinge pin axis.

The first portion may be fixed to the frame using one or more fasteners (e.g. screws or nails). Additionally or alternatively, the first portion may be fixed to the frame using adhesive. The second portion may be fixed to the door or window leaf using one or more fasteners (e.g. screws or nails). Additionally or alternatively, the second portion may be fixed to the door or window leaf using adhesive.

The compression adjustment mechanism may be adjusted by moving the first adjustment pin. For example, the compression adjustment mechanism may be adjusted by rotating the first adjustment pin. Moving the first adjustment pin may be configured to move the first adjustment block and the hinge pin relative to the first portion. The compression adjustment mechanism may be adjusted by moving the second adjustment pin. For example, the compression adjustment mechanism may be adjusted by rotating the second adjustment pin. Moving the second adjustment pin may be configured to move the second adjustment block and the hinge pin relative to the first portion.

According to a fourth aspect of the invention, there is provided a method of assembling a hinge.

The method of assembling a hinge may comprise providing a first hinge portion, second hinge portion, and a hinge pin. The first portion may comprise at least one chamber. The method may comprise connecting the first portion to the second portion with the hinge pin, such that the first and second portions are pivotally moveable relative to each other and an end of the hinge pin extends into the chamber. The method may comprise inserting a block retainer into the chamber of the first portion to secure the end of the hinge pin within the chamber of the first portion.

The first portion may be for fixing to a frame. The second portion may be for fixing to a door or window leaf.

The hinge may comprise a compression adjustment mechanism e.g. as described above. The hinge may further comprise a second adjustment block as described above. The retainer block may form part of the compression adjustment mechanism.

The block retainer may comprise a retaining element. The first portion may comprise a retaining recess. The retaining element may be configured to engage with the retaining recess of the first portion. The retaining element may comprise a male connector e.g. an arrow shaped clip. The retaining recess may comprise a female connector. Inserting the block retainer into the chamber with the first portion may comprise clipping the retaining element into the retaining recess.

The method of assembling the hinge may further comprise inserting a first adjustment block into the first housing of the first portion. The method may comprise subsequently inserting the retaining block into the chamber to retain the first adjustment block within the chamber. The method of assembling the hinge may further comprise locating a first cover over the first housing and optionally connecting the first cover to the first housing. The method may further comprise locating a second cover over a second housing and optionally connecting the second cover to the second housing.

Advantageously, the method ensures that the hinge pin is securely fixed in the hinge assembly and not accidentally dislodged from the assembly during transit, installation, or use. If the hinge pin is accidentally dislodged, the first portion of the hinge and the second portion of the hinge may become separated or misaligned.

Further advantageously, assembling the hinge in this manner allows for an easier installation of the hinge. The hinge may be pre-assembled and provided to a user. The user can subsequently attach the hinge to the frame and a door or window leaf, without having to assemble the hinge using individual hinge components. This simplifies the installation process for the user. Alternatively, the hinge may be supplied as a kit of parts and installed on site. The first and second portion can be connected to a door or window and a frame separately, and swiftly connected together using the hinge pin and retainer block to complete the door or window assembly.

It is understood that any one or more of the features from any aspect of the invention may be combined with other feature from any aspect of the invention.

Brief Description of the Figures

Embodiments of the invention will now be described with reference to the following Figures in which: Figure 1 is a perspective view of a hinge; Figure 2 is an exploded perspective view of a hinge; Figure 3 is a side view of a hinge with a hinge pin in a position of minimum compression; Figure 4 is an end view of a hinge with a hinge pin in a position of minimum compression; Figure 5 is a side view of a hinge with a hinge pin in a position of maximum compression; Figure 6 is an end view of a hinge with a hinge pin in a position of maximum compression; Figure 7 is an exploded perspective view of a vertical adjustment mechanism of a hinge; Figure 8 is a bottom exploded view of a vertical adjustment mechanism of a hinge; Figure 9 is an exploded perspective view of a lateral adjustment mechanism of a hinge.

Detailed Description

The invention is illustrated in the Figures of the accompanying drawings, which are meant to be exemplary and not limiting, in which like references are intended to refer to like or corresponding parts.

It will be understood that the use of terms such as up, down, left, right, lateral, vertical etc. are for descriptive purposes only to aid comprehension, and thus do not preclude alternative orientations or configurations of the disclosed invention.

Turning now to Figure 1, there is shown a perspective view of a hinge 1. The hinge 1, comprises a first portion 2 and a second portion 4. The first portion 2 comprises a body 14, a first housing assembly 10 and a second housing assembly 12. The second portion 4 comprises a flag 6 and a barrel 8 positioned between the first housing assembly 10 and the second housing assembly 12. The second portion 4 is pivotally moveable with respect to the first portion 2. The body 14 of the first portion 2 is fixable to a door and/or window frame (not shown). The flag 6 of the second portion 4 is fixable to a door and/or window leaf (not shown).

The hinge 1 is adjustable in three orthogonal linear directions: vertically Y, laterally X, and in compression Z. The compression adjustment Z will be described in more detail with reference to Figures 3 to 6. The vertical adjustment Y will be described in more detail with reference to Figures 7 and 8. The lateral adjustment X will be described in more detail with reference to Figure 9.

Turning now to Figure 2, there is shown an exploded perspective view of a hinge 1. The flag 6 comprises a fixing plate 16. The fixing plate 16 is integrally formed with the barrel 8. The flag 6 comprises a flag cover 17 and a lateral adjustment mechanism (shown in Figure 9). The barrel 8 comprises a channel 20 therethrough.

The first housing assembly 10 comprises a first housing 40, a first aperture plate 44 and a first cover 28. The first housing 40 defines a first chamber 45. The first housing 40 comprises a first passage 42. The first passage 42 is substantially circular in shape and is located in a surface of the first housing 40. The first passage 42 provides access through the first housing 40 into the first chamber 45. The first aperture plate 44 comprises a first aperture 46. The first aperture 46 has a length in the compression direction Z. More specifically, the first aperture 46 has a substantially elliptical shape with its major axis extending in the compression direction Z. The first housing 40 and the first aperture plate 44 are connected to the body 14. The first aperture plate 44 is located on one side of the first housing 40, thereby forming a closure to the first chamber 45 defined by the first housing 40. The first aperture plate 44 may be integrally formed with or connected to the first housing 40, forming a closure to one side of the first chamber 45 defined by the first housing 40. When assembled, the first cover 28 slots over the first housing 40, thereby covering the first passage 42. The first cover 28 also conceals a first end of the body 14, as shown in Figure 1. The first cover 28 is connectable to the first housing 40, so that access to the first chamber 45 through the first passage 42 is restricted during use. This may be beneficial, as unauthorised parties are unable to gain access to a compression adjustment mechanism (discussed below) during the use of the hinge 1. The first cover 28 also conceals the compression adjustment mechanism, providing the hinge 1 with a more aesthetically appealing look.

The second housing assembly 12 comprises a second housing 52, a second aperture plate 48 and a second cover 74. The second housing 52 defines a second chamber 54.

The second housing 52 comprises a second passage 50. The second passage 50 is substantially circular in shape and is located in a surface of the second housing 52. The second passage 50 provides access through the second housing 52 into the second chamber 54. The second aperture plate 48 comprises a second aperture (not shown). The second aperture plate 48 and the second aperture are identical to the first aperture plate 44 and the first aperture 46, respectively. The second aperture is aligned with the first aperture 46 to form an aperture channel extending between the first housing 40 and the second housing 52 in the vertical direction Y On use).

The second housing 52 and the second aperture plate 48 are connected to the body 14.

The second aperture plate 48 is located on one side of the second housing 52, thereby forming a closure to the second chamber 54 defined by the second housing 52. The second aperture plate 48 may be connected to or integrally formed with the second housing 52, forming a closure at one side of the second chamber 54 defined by the second housing 52. When assembled, the second cover 74 slots over the second housing 52, thereby covering the second passage 50. The second cover 74 also conceals a second end of the body 14. The second cover 74 is connectable to the second housing 52, so that access to the second chamber 54 through the second passage 50 is restricted during use. This may be beneficial, as unauthorised parties may be unable to gain access to a compression adjustment mechanism (discussed below) during the use of the hinge 1. The second cover 74 also conceals the compression adjustment mechanism, providing the hinge 1 with a more aesthetically appealing look.

The compression adjustment mechanism comprises a first compression adjustment assembly 22 and a second compression adjustment assembly 66.

The first compression adjustment assembly 22 comprises a first adjustment block 26, a first adjustment pin 30 and a first nut 34. The first adjustment pin 30 takes a form of a first screw comprising a first threaded portion 31 and a first end portion 33. The first end portion has a substantially square cross section. Specifically, the first end portion has a cross-section of a square with rounded sides. The first adjustment block comprises a first threaded channel 32. The first nut 34 comprises a first nut opening 36, and is made out of a synthetic plastics material, preferably nylon.

When assembled, the first adjustment pin 30 extends through the first threaded channel 32 and into the first nut opening 36 in the first nut 34. The first nut opening 36 has an approximately square cross section with rounded sides. The first threaded channel 32 of the first adjustment block 26 co-operates with the threaded portion of the first adjustment pin 30, such that rotation of the first adjustment pin 30 translates into a linear movement of the first adjustment block along the compression direction Z (as further described with reference to Figures 3 to 6). The first nut 34 engages the sides of first end portion 33 of the first adjustment pin 30, thereby restricting the rotation of the first adjustment pin 30.

The use of the first nut 34 is advantageous as it ensures that the first adjustment pin 30 remains in its orientation following an adjustment (i.e. rotation), thus preventing any undesired rotation over time. Manufacturing the first nut 34 out of a synthetic plastics material is especially advantageous, as the material is able to resiliently deform during rotation of the first adjustment pin 30 and thereby provide a resistance to rotation.

When the hinge 1 is assembled, the first compression adjustment assembly 22 is located within the first chamber 45 defined by the first housing 40. The head of the first adjustment pin 30 is aligned with the first passage 42 of the first housing 40. When assembled, the first adjustment pin 30 can be accessed through the first passage 42. For example, a user can insert a tool through the first passage 42 to rotate the first adjustment pin 30.

The second compression adjustment assembly 66 comprises a second adjustment block 58, a second adjustment pin 56 and a block retainer 67. The second adjustment pin 56 takes a form of a second screw comprising a second threaded portion 57 and a second end portion 59. The second adjustment block 58 comprises a second threaded channel 62 and an opening 60. The block retainer 67 comprises a second nut 70 in a form of two parallel walls, a retaining element 72, a plate slot 68 and a metal pad 64. The retaining element 72 takes a form of an arrow shaped clip. The retaining element 72 is integrally formed with the second nut 70 and the plate slot 68 (i.e. the retaining element 72, the nut 70 and the plate slot 68 are made out of a single moulding). The retaining element 72, the second nut 70 and the plate slot 68 are manufactured out of a synthetic plastic material, preferably nylon.

In the assembled position, the metal pad 64 is located in the plate slot 68. The metal pad is therefore located beneath the two parallel walls of the second nut 70. The metal pad 64 is not permanently attached to the plate slot 68. Therefore, the metal pad 64 can be removed and replaced if needed (i.e. if the metal pad 64 sustains wear and tear).

When assembled, the second adjustment pin 56 is configured to extend through the second threaded channel 62 and into the second nut 70. The end of the second adjustment pin 56 abuts the metal pad 64 located within the plate slot 68.

The two parallel sides which form the second nut 70 engage the sides of the second end portion 59 of the second adjustment pin 56, thereby restricting the rotation of the second adjustment pin 56. The use of the second nut 70 is advantageous as it ensures that the second adjustment pin 56 remains in its orientation following an adjustment (i.e. rotation).

The second nut 70 retains the second adjustment pin 56 in the selected orientation, preventing any undesired rotation over time. Manufacturing the second nut 70 out of a synthetic plastic material is especially advantageous, as the material is able to deform around the second end portion 59 during rotation of the second adjustment pin and subsequently return to its original form after the second adjustment pin is rotated to its final position.

The second threaded channel 62 of the second adjustment block 58 co-operates with the threaded portion of the second adjustment pin 56, such that rotation of the second adjustment pin 56 translates into a linear movement of the second adjustment block 58 along the compression direction Z (as further described with reference to Figures 3 to 6). As the second adjustment pin 56 is rotated, its end abuts the metal pad 64.

The use of the metal pad 64 is necessary since the base of the second housing, which would otherwise abut the end of the second adjustment pin 56, is vulnerable to wearing as the second adjustment pin 56 is rotated. Advantageously, the metal pad 64 provides a resistant surface for the second adjustment pin 56 to act upon, thereby providing additional structural integrity and allowing the second adjustment pin 56 to reliably move the second adjustment block 58. The use of another metal pad for the first adjustment pin is not necessary, since the base of the first housing 40 is thicker and stronger than the base of the second housing 52, due to not requiring a retainer block configuration.

When the hinge 1 is assembled, the second compression adjustment assembly 66 is located within the second chamber 54 defined by the second housing 52. The head of the second adjustment pin 56 is aligned with the second passage 50 of the second housing 52. In this manner, the second adjustment pin 56 can be accessed through the second passage 50. For example, a user can insert a tool through the second passage 50 to rotate the second adjustment pin 56. The second adjustment pin 56 and the second adjustment block 58 are retained in the second chamber 54 by the block retainer 67. The block retainer 67 forms a barrier, abutting the back of the second adjustment block 58.

The second adjustment block 58 containing the second adjustment pin 56 is therefore not able to slide out of the second chamber 54. The block retainer is maintained within the second chamber using the retaining element 72. The retaining element takes the form of the arrow shaped clip. The arrow-shaped clip is configured to engage with a corresponding female recess (not shown) in the second chamber 54 of the second housing 52.

The hinge 1 further comprises a hinge pin 24. The hinge pin 24 defines a hinge pin axis, schematically represented with a dashed arrow A. The hinge pin axis A is parallel to the vertical direction Y and perpendicular to both the compression direction Z and the lateral direction X. the hinge pin 24 has a substantially circular cross-section. A first end of the hinge pin 24 is connected to the first adjustment block 26.

When assembling the hinge 1, the hinge pin 24 is inserted through the first chamber 45, the first aperture 46, the channel 20, the second aperture (not shown), the second chamber 54 and into the opening 60 in the second adjustment block 58. A second end of the hinge pin 24 is retained in the opening 60 in the second adjustment block 58, such that the hinge pin 24 is fixed with respect to the second adjustment block 58.

The second portion 4 is pivotally moveable relative to the first portion 2, about the hinge pin i.e. hinge pin axis A. Since the first aperture 46 and the second aperture (not shown) have a length in the compression direction Z, the hinge pin 24 is moveable (i.e. linearly) within the two apertures in the compression direction. The hinge pin 24 can be moved in the compression direction Z (i.e. in a direction perpendicular to the hinge pin axis A) relative to the first portion 2, using the first compression adjustment assembly 22 and the second compression adjustment assembly 66 as will now be explained with reference to Figures 3 to 6.

Compression Adjustment Mechanism Figures 3 and 5 show a side view of the hinge 1. The body 14, the first housing assembly 10 and the second housing assembly 12 in Figures 3 and Shave been made transparent to show the compression adjustment mechanism. Figures 4 and 6 show an end view of the hinge 1. The second cover 74 has been removed from the view of Figures 4 and 6 to show the second compression adjustment assembly 66.

The compression adjustment mechanism is configured to move the hinge pin 24 linearly relative to the first portion 2 in the compression direction Z (i.e. a direction substantially perpendicular to the hinge pin axis A). The compression adjustment mechanism moves the hinge pin 24 between a position of minimum compression (shown in Figures 3 and 4) and a position of maximum compression (shown in Figures 5 and 6).

In Figures 3 and 4 the separation between the first portion 2 and the centre of the barrel 8 in the second portion 4 in the compression direction Z is depicted by a distance a.

Distance a is shown in Figure 3 by a double-ended arrow. A maximum separation between the first portion 2 and the centre of barrel 8 in the compression direction Z is achieved when the hinge pin 24 is in the position of minimum compression.

In Figures 5 and 6 the hinge pin 24 is in the position of maximum compression, where the separation between the first portion 2 and the second portion 4 in the compression direction Z is depicted by a distance b. A minimum separation between the first portion 2 and the second portion 4 in the compression direction Z is achieved when the hinge pin 24 is in the position of maximum compression.

The compression adjustment mechanism is used to move the hinge pin 24 from the position of minimum compression to the position of maximum compression. The first cover 28 and the second cover 74 are removed from the first housing 40 and the second housing 52, respectively. The first adjustment pin 30 is accessible through the first passage 42. The first adjustment pin 30 is rotatable (i.e. using a tool) to move the first adjustment block 26 linearly relative to the first portion 2 in the compression direction Z. Since the hinge pin 24 is connected to the first adjustment block 26, the hinge pin 24 moves with the first adjustment block in the compression direction Z. The second adjustment pin 56 is accessible through the second passage 50 and rotatable (i.e. using a tool) to move the second adjustment block 58 linearly relative to the first portion 2, in the compression direction Z. The second end of the hinge pin 24 is retained in the opening 60 of the second adjustment block. Therefore, the movement of the second adjustment block 58 moves the hinge pin in the compression direction Z. The simultaneous or successive rotation of the first adjustment pin 30 and the second adjustment pin 56, drives the hinge pin 24 linearly in the compression direction Z. Since the second portion 4 is pivotally connected to the hinge pin 24, the movement of the hinge pin 24 also moves the second portion 4 relative to the first portion 2 in the compression direction Z. After adjustment, the first and second covers 28, 74 are positionable over the first and second housings 40, 52.

Advantageously, the compression adjustment mechanism allows the hinge pin 24, the second portion 4 and the door or window leaf (not shown) to be moved relative to the first portion 2 and the frame (not shown) in the compression direction, permitting the door or window leaf to be correctly fitted within the frame. Correct fitting ensures that seals between door or window leaf and the frame are sufficiently compressed to provide good weatherproofing when the door or window leaf is closed.

It is also advantageous for the compression adjustment mechanism to move the hinge pin 24 (and consequently the second portion 4 and the door or window leaf) linearly in the compression direction Z independently of both the vertical Y and lateral X directions.

This simplifies the method of mounting and adjusting the hinge 1, since the position of the hinge doesn't have to be adjusted to compensate for any undesired displacement in the vertical Y and lateral X directions.

Vertical Adjustment Mechanism and Lateral Adjustment Mechanism Figures 7 and 8 show exploded perspective views of a vertical adjustment mechanism of the hinge 1. The vertical adjustment mechanism comprises a fixing block 80, a vertical adjustment screw 70 and a vertical adjustment channel 100 located in the body 14 of the hinge 1.

The vertical adjustment screw 70 comprises a threaded portion 200a and has an end with a flat face 71. The first portion 2 comprises a screw channel 202 extending to the vertical adjustment channel 100 and comprising a threaded portion 200b with which the vertical adjustment screw 70 is engaged. The vertical adjustment channel 100 comprises a first rail 102a and a second rail 102b on the inner walls of the body 14. The fixing block 80 has a top face 91 and three frame fastener holes 82, 84, 86 and two rods 88 and 90. The fixing block also comprises a first recess channel (not shown) and a second recess channel 98b for engaging the first rail 102a and a second rail 102b.

During installation, the fixing block 80 is secured to the door or window frame with mechanical fasteners (e.g. screws). Subsequently, the body 14 of the first portion 2 is slid over the fixing block 80. The flat face 71 of the vertical adjustment screw 70 abuts the top face 91 of the fixing block 80. The hinge 1 can be moved relative to the fixing block 80 (and thus the door or window frame) in the vertical direction Y by rotating the vertical adjustment screw 70.

Figure 9 shows an exploded perspective view of a lateral adjustment mechanism 7 of the hinge 1comprising a lateral adjustment screw 320, a fixing block 302, a fixing screw 310 and a lateral adjustment block 316. The fixing block 302 comprises a receiving channel 304, six fastener holes (one of which is labelled 306), and a threaded passage 308. The lateral adjustment block 316 has a flared base and is substantially cuboidal in shape. The lateral adjustment block 316 comprises a threaded opening 314.

The lateral adjustment mechanism 7 is mounted on the fixing plate 16. The fixing plate 16 comprises two parallel fastener slots 318a, 318b, a lateral adjustment block slot (not shown) and a fixing screw slot 312. During assembly, the lateral adjustment block 316 is inserted through the lateral adjustment block slot in the fixing plate 16. The lateral adjustment screw 320 is driven through the receiving channel 304 of the fixing block 302 into the threaded opening 314 of the lateral adjustment block 316. The fixing screw 310 is inserted through the fixing screw slot 312 into the threaded passage 308 of the fixing block 302. The lateral adjustment mechanism 7 and the fixing plate 16 are attached to a door or window leaf (not shown) using mechanical fasteners (e.g. screws) through the six fastener holes 306 and the parallel fastener slots 318a, 318b, into the door or window leaf. The flag cover 17 conceals the lateral adjustment mechanism 7 during use.

The lateral adjustment mechanism 7 is configured to move a door or window leaf relative to the first portion 2, in a lateral direction X by rotating the lateral adjustment screw 320 within the threaded opening 314 of the lateral adjustment block 316. Once the lateral adjustment mechanism 7 has been adjusted, the fixing screw 310 is tightened in the threaded passage 308 of the fixing block 302 to immobilise the fixing block 302 relative to the fixing plate 16.

Claims

CLAIMS: 1. A hinge for mounting a door or window leaf to a frame, the hinge comprising: a first portion for fixing to the frame; a second portion for fixing to the door or window leaf; a hinge pin defining a hinge pin axis and connecting the first and second portions, such that the first and second portions are pivotally moveable relative to each other; and a compression adjustment mechanism configured to move the hinge pin linearly relative to the first portion in a direction substantially perpendicular to the hinge pin axis. 10 2. A hinge according to claim 1, wherein the compression adjustment mechanism is at least partially located within the first portion.3. A hinge according to claim 1 or claim 2, wherein the first portion comprises: a first housing defining a first chamber comprising a first aperture and optionally a second housing defining a second chamber comprising a second aperture; wherein the hinge pin extends through the first aperture and optionally the second aperture.4. A hinge according to claim 3, wherein the compression adjustment mechanism is configured to move the hinge pin within the first aperture and/or the second aperture.5. A hinge according to any one of the proceeding claims, wherein the compression adjustment mechanism comprises: a first adjustment block connected to or integrally formed with the hinge pin; and a first adjustment pin moveably engaged within the first adjustment block; wherein movement of the first adjustment pin moves the first adjustment block and the hinge pin relative to the first portion.6. A hinge according to claim 5, wherein the first adjustment pin comprises a first threaded portion and the first adjustment block comprises a first threaded channel for cooperating with the first threaded portion.7. A hinge according to claim 6, wherein a rotation of the first threaded portion within the first threaded channel of the first adjustment block is configured to move the first adjustment block relative to the first portion.8. A hinge according to any one of claims 5 to 7, wherein the compression adjustment mechanism further comprises a first nut configured to engage sides of the first adjustment pin, thereby restricting the rotation of the first adjustment pin.9. A hinge according to claim 3 and claim 5, wherein the first adjustment block and the first adjustment pin are at least partially located within the first chamber defined by the first housing.10. A hinge according to claim 9, wherein the first housing comprises a first passage for accessing and moving the first adjustment pin.11. A hinge according to claim 10, further comprising a first cover for attaching over the first housing to cover the first passage during use. 15 12. A hinge according to any one of claims 5 to 11, wherein the compression adjustment mechanism further comprises: a second adjustment block comprising an opening for receiving an end of the hinge pin therein; and a second adjustment pin moveably engaged within the second adjustment block; wherein movement of the second adjustment pin moves the second adjustment block and the hinge pin relative to the first portion.13. A hinge according to claim 12, wherein the second adjustment pin comprises a second threaded portion and the second adjustment block comprises a second threaded channel for cooperating with the second threaded portion.14. A hinge according to claim 13, wherein a rotation of the second threaded portion within the second threaded channel of the second adjustment block is configured to move the second adjustment block relative to the first portion.15. A hinge according to any one of claims 12 to 14, wherein the compression adjustment mechanism further comprises a block retainer; the block retainer comprising: a second nut configured to engage sides of the second adjustment pin, thereby restricting the rotation of the second adjustment pin; and a retaining element for engaging with the first portion and configured to maintain the block retainer within the first portion during use.16. A hinge according to claim 15, wherein the block retainer further comprises a metal pad configured to abut an end of the second adjustment pin.17. A hinge according to claim 3 and claim 12, wherein the second adjustment block and the second adjustment pin are at least partially located within the second chamber defined by the second housing.18. A hinge according to claim 17, wherein the second housing comprises a second passage for accessing and moving the second adjustment pin.19. A hinge according to claim 18, further comprising a second cover for attaching over the second housing to cover the second passage during use.20. A hinge according to any one of the preceding claims, wherein the second portion comprises a barrel comprising a channel for receiving the hinge pin, such that the second portion is pivotally moveable relative to the hinge pin about the hinge pin axis.21. A door or window assembly comprising: a door or a window leaf; and a hinge according to any one of the preceding claims.22. A method of adjusting a position of a door or window leaf relative to a frame using a hinge according to any one of claims 1 to 20, the method comprising: fixing the first portion to the frame; fixing the second portion to the door or window leaf; and adjusting the compression adjustment mechanism to linearly move the hinge pin, the second portion and the door or window leaf relative to the first portion in a direction substantially perpendicular to the hinge pin axis.23. A method of assembling a hinge, the method comprising: providing a first hinge portion, second hinge portion, and a hinge pin, wherein the first portion comprises at least one chamber, connecting the first portion to the second portion with the hinge pin, such that the first and second portions are pivotally moveable relative to each other and an end of the hinge pin extends into the chamber, and inserting a block retainer into the chamber of the first portion to secure the end of the hinge pin within the chamber of the first portion.