Turban
The door hinge design with a guiding extension simplifies single-person alignment and secure hanging of doors, addressing the challenge of multi-person alignment in conventional hinges.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-03-05
AI Technical Summary
Conventional door hinges require precise alignment of multiple parts by multiple individuals to securely hang heavier doors, making it difficult for a single person to install and align them accurately.
A door hinge design featuring a lower part with an extension that guides the upper hinge part onto a spindle, allowing single-person alignment and secure hanging by providing a stable stop and ensuring the upper hinge part can rotate freely without obstruction.
Enables single-person installation and secure hanging of doors by aligning hinges with ease, reducing the need for assistance and improving installation efficiency.
Smart Images

Figure 00000000_0000_ABST
Abstract
Description
[0001] The invention relates to a door hinge according to claim 1. Door hinges are used to suspend doors, for example on furniture, interior doors, or even front doors, so that they can rotate freely. Door hinges typically consist of two separate but interacting parts: a lower hinge part, which is fixedly connected to the door frame, and an upper hinge part, which is fixedly connected to the rotating door leaf. Different types of door hinges are used. So-called mortise hinges are used, in which the upper and lower hinge parts are screwed into pre-drilled holes in the frame and door. Or so-called surface-mounted hinges are used, in which the upper and lower hinge parts, each comprising a tab, are screwed onto the frame and the door leaf. For a door to function properly, at least two door hinges must be mounted at a distance from each other. For heavier doors, three or even more door hinges are often used.With conventional hinges, installing the door after all hinges have been mounted is a rather critical process. The parts of all hinges must be precisely aligned simultaneously so that they can be brought together and the door can be securely hung. The more hinges are installed, the greater the problem. Especially with heavier doors, an assistant is usually needed to ensure the door is hung safely. A single person is generally unable to hold the weight of the door and simultaneously align all the hinges with pinpoint accuracy.
[0002] The present invention provides a novel door hinge that significantly simplifies the process of hanging a door. Typically, when using the door hinge according to the invention, a door can be aligned for hanging and then securely hung by a single person. An embodiment of the invention is explained in more detail below with reference to the drawing.
[0003] This shows Fig. 1: the lower part of a door hinge according to the invention in side view; Fig. 2: a top view from the direction of arrow A onto the in Fig. 1. The lower part of the band is shown; Fig. 3: the joining of the upper and lower parts of the hinge when hanging the door.
[0004] Fig. Figure 1 shows a schematic representation of only the lower part 1 of a door hinge according to the invention in a side view. Such a lower part 1 is usually permanently attached to the frame of a door. The frame itself and the fastening means for the lower part 1 are not shown in the drawing. Fig. Figure 2 shows a top view of the lower part of the band 1 from the direction of arrow A in Fig. 1. The lower hinge part 1 is essentially cylindrical. A smaller diameter pin 1.1 projects coaxially beyond the cylinder. When the door is hung, the upper hinge part 2 is pushed onto this pin 1.1 and rotatably mounted there. According to the invention, an extension 1.2 is connected to the cylinder of the lower hinge part 1. This extension extends parallel to the pin 1.1 and even partially projects beyond it. Advantageously, the extension 1.2 is between 50% and 100% longer than the pin 1.1. The extension 1.2 is preferably designed as part of a hollow cylinder whose inner diameter is larger than the outer diameter of the upper hinge part 2. After the upper hinge part 2 is pushed onto the pin 1.1 when the door, which is connected to the upper hinge part 2, is hung, the upper hinge part 2 and the door, which is rigidly connected to it, can therefore rotate freely. The length of the outer circumference of the extension 1.2 is freely selectable within certain limits.On the one hand, the extension 1.2 should be sufficiently stable to serve as a reliable stop when hanging the door. On the other hand, the extension 1.2 must not obstruct the sliding of the hinge head 2 onto the spindle 1.1 when hanging the door, nor the subsequent rotation of the door. In practice, an angle of approximately 20° to 30° for the length of the outer circumference of the extension 1.2 has proven suitable. With reference to... Fig. Section 3 below explains how to hang the door. The description is limited to one hinge, but applies analogously to all other hinges installed. The lower hinge part 1 is permanently attached to the frame (not shown). The upper hinge part 2, which is essentially a hollow cylinder, is permanently attached to the unhinged and in Fig.3 doors not explicitly shown. The door is slightly lifted and moved, with the upper hinge part 2 leading, in the direction of arrow B onto the extension 1.2 of the lower hinge part 1, until the upper hinge part 2 rests against the extension 1.2 above the spindle 1.1. This is done in the same way for all other mounted door hinges. In this position of the lifted door, the bore 2.1 of the upper hinge part 2, which is designed as a hollow cylinder, aligns with the spindle 1.1 below it. Guided by the extension 1.2, which acts as a stop, the door can now be easily lowered in the direction of arrow C, whereby the upper hinge part 2 is pushed onto the spindle 1.1. Reference symbol list 1 Lower part of the door hinge 1.1 Dorn 1.2 Extension 2 Band top 2.1 Drilling A arrow B Arrow C arrow
Claims
[1] Door hinge with a hinge top part (2) and a hinge bottom part (1), with a pin (1.1) arranged centrally in the hinge bottom part (1) forming an axis of rotation, on which the hinge top part (2) is rotatably mounted, characterized by the following characteristics: - the lower part of the band (1) includes an extension (1.2) that exceeds the length of the mandrel (1.1); - the extension (1.2) is designed as part of a cylindrical shell; - the inner diameter of the extension (1.2) exceeds the outer diameter of the upper part of the band (2). [2] Door hinge according to claim 1, characterized by , that the length of the extension (1.2) is between 50% and 100% greater than the length of the mandrel (1.1). [3] Door hinge according to one of the preceding claims, characterized by , that the outer circumference of the extension (1.2) covers an angular range of at least 20° to about 30°. [4] Door hinge according to any of the preceding claims, characterized by, that the inner diameter of the extension (1.2) is larger than the outer diameter of the upper part of the band (2).