DE20305449U1 - Three-part hinge assembly with height-adjustment for door in building has vertical bolt accommodating sleeve with two tongues engaging door frame and sleeves with tongues engaging door - Google Patents

Abstract

The door frame portion of the hinge (5) has two tongues (13) projecting at right-angles to a sleeve (17) fitting on a central bolt (1). There are adjustment regions (10,11) at the top and bottom ends of the bolt below and above sleeves (3,4) for the tongues engaging in the door. There is an externally-threaded portion (2) at the bottom of the bolt engaging in an adjustment screw (7) with a groove for a screwdriver. A screw cap (15) engages the head of the bolt (6).

Description

MICHAEL ERLMEIER

m. erlmeier@surfeu.de

10.841SS Bonbnick .

German

Patent and Trademark Office

Zweibrückenstrasse 12

Bonbruck 12.06.2003

80331 Munich

Reference number: 203 05 449.0

Description

3-part door hinge with height adjustment.

It is known that 3-part door hinges in their simplest version give the user the option of adjusting the door leaf both laterally (by turning the door parts in or out) and the closing pressure (by adjusting the frame or stock part in the hinge holder). If the height of the door leaf needs to be adjusted, the user must use complex, much more expensive door hinges with a different design and appearance.

The invention specified in claims 1 to 6 is based on the problem of adjusting the height of a door leaf without causing additional costs in the production of door frames, door jambs and door leaves due to special milling for complex, usually complicated, height-adjustable 3-part door hinges, without making changes to the hinge mounts on the door frame or door jamb and door leaf. The appearance of the door element is not changed by a different design of door hinge. Furthermore, the manufacturers of doors, door frames and door jambs should not have to make their product significantly more expensive due to expensive, very complex to produce height-adjustable 3-part door hinges.

These problems are solved by the features listed in claims 1 to 6.

The advantages achieved with the invention are in particular that a door leaf can be adjusted in height continuously and with millimetre precision using an adjusting screw for each hinge, without loosening the hinge mounts of the frame or stock parts. This enables simple, absolutely precise adjustment and setting of the door leaf.

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An advantageous embodiment of the invention is specified in claim 5. The further development according to claim 5 makes it possible to use the 3-part door hinge in all commercially available hinge holders. Manufacturers of doors, door frames and door casings can use the door hinge without changing their production. Furthermore, subsequent conversion in already installed door frames and door casings is easily possible.

A further advantageous embodiment of the invention is specified in claim 4. The design of the door hinge according to claim 4 enables the 3-part door hinge to be used together with non-height-adjustable 3-part door hinges in a building project. The height adjustment mechanism, which is concealed by a sleeve, gives the 3-part door hinge with height adjustment the same appearance as the 3-part door hinges already on the market.

Furthermore, the 3-part door hinge with height adjustment developed here can be produced much more cheaply than the ones already on the market due to the simplicity of the construction.
3-part door hinges with height adjustment.

An embodiment of the invention is shown in Figure 1 and Figure 2 and is described in more detail below.

3-part door hinge with height adjustment on the example: wooden frame with hinge pocket, door parts for drilling.

When the door leaf is hung, the support bolt (1), which has an external thread (2) at the lower end, is inserted from above through the door parts (3; 4) screwed onto the door leaf and the frame part (5) attached to the door frame by means of a hinge pocket. The support bolt (1) can be inserted through the upper door part (3) until the lower edge of the support bolt head (6) rests on the upper edge of the frame part (5). The adjusting screw (7), which has a holder for an Allen key (8) and an internal thread, is inserted from below into the lower door part (4) and screwed onto the external thread (2) of the support bolt (1). By screwing in the adjusting screw (7) until the adjusting screw head (9) rests on the lower edge of the lower door part (4), the height setting of the door leaf does not change. Only when the adjusting screw (7) is turned further onto the support bolt (1) does the dimension of the support bolt (1) shorten with the adjusting screw (7) screwed on, the lower edge of the support bolt head (6) presses on the upper edge of the frame part (5) and the adjusting screw head (9) lifts the door leaf at the lower edge of the lower door part (4). The further the adjusting screw (7) is screwed onto the support bolt (1), the further the door leaf is raised. If the adjusting screw (7) is turned in the opposite direction, the door leaf lowers. The upper adjustment range (10) between the lower edge of the upper door part (3) and the upper edge of the frame part (5), as well as the lower adjustment range (11) between the lower edge of the frame part (5) and the upper edge of the lower door part (4), which are necessary for the height adjustment, are covered with a sleeve (12) which is placed over the frame part (5) before the door leaf is hung. The upper and lower adjustment ranges (10; 11) limit the height adjustability of the

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Door hinge. Upwards, through the lower adjustment area (11) and downwards, through the upper adjustment area (10). The sleeve (12) must be recessed (21) in the area of the pins of the frame part (13) so that the sleeve (12) can be moved easily up and down when the height of the door leaf is adjusted. Furthermore, the sleeve (12) must be designed so that it is guided precisely on the frame part (5) to prevent it from jamming. The hinge roller of the upper door part (14) is covered by a cover cap (15) with an external thread and Allen key socket (16), which looks exactly like the adjusting screw head (9) of the adjusting screw (7), in order to protect the inside of the door hinge from dirt.

The outer diameter of the support bolt head (6) must match the outer diameter of the hinge roller of the frame part (17) so that the sleeve (12) can slide over the support bolt head (6) when adjusting the height. The outer diameters of the sleeve (12) and the hinge rollers (14; 20) of the upper and lower door parts (3; 4) must also be the same so that the appearance of the door hinge is maintained.

Furthermore, the support bolt head (6) and the door parts (3; 4) must be provided with a positive guide in the axial direction (support bolt head with a pin (18), door parts with a groove (19)). This prevents the support bolt (1) from turning when the adjusting screw (7) is screwed in and the adjusting screw (7) from loosening when the door is opened and closed. The upper and lower door parts (3; 4) must be designed with this guide groove (19) so that the door parts cannot be confused when they are mounted on the door leaf.

The 3-part door hinge with height adjustment can be produced for all commercially available hinge holders.

Furthermore, the door hinge can also be manufactured in a maintenance-free version in order to avoid re-lubrication of the support bolt and the door, frame and stick parts.

The height adjustment of the door leaf makes work much easier when installing door elements, because if there is insufficient floor clearance, the door leaf does not have to be removed and shortened. It is also used when the door leaf cannot be shortened or adjusted later. (e.g. partially glass doors with glass inserts up to the bottom edge of the door leaf; all-glass doors; doors with floor seals; if the door frame or jamb was installed with too much floor clearance; if the dimensions of the floor structure are reduced after the door frame or jamb is installed, e.g. during renovation;)

Claims (6)

1. 3-part door hinge with height adjustment, which has a frame or stock part ( 5 ) (hereinafter referred to as the lower hinge part) and one or two door parts ( 3 ; 4 ), where the door parts ( 3 ; 4 ) are rotatably mounted in the lower hinge part ( 5 ) by means of a support bolt ( 1 ), characterized in that the 3-part door hinge can be adjusted in height along the support bolt ( 1 ). 2. 3-part door hinge with height adjustment according to protection claim 1, characterized in that the door parts ( 3 ; 4 ) can be continuously adjusted in height by means of an adjusting screw (T) screwed from below onto the support bolt ( 1 ). 3. 3-part door hinge with height adjustment according to protection claim 1, characterized in that the support bolt ( 1 ) in the upper door part ( 3 ) is secured against twisting by a positive guide in the axial direction (support bolt with pin ( 18 ), door part with groove ( 19 )), and thus also against loosening of the adjusting screw ( 7 ). 4. 3-part door hinge with height adjustment according to protection claim 1, characterized in that the upper and lower adjustment areas ( 10 ; 11 ) are covered by a sleeve ( 12 ) which moves on the lower part of the hinge ( 5 ) during adjustment and thus does not visually distinguish it from a 3-part door hinge according to the state of the art. 5. 3-part door hinge with height adjustment according to protection claim 1, characterized in that the door hinge can be installed in all commercially available hinge holders. 6. 3-part door hinge with height adjustment according to protection claim 1, characterized in that the door hinge can be adjusted in height without releasing the lower hinge part ( 5 ) in the hinge holder.