Switchable pivot door system with movable left and right levers

Abstract

Switchable pivot-axis door system, characterized in that a symmetrical door frame with left and right hinge receptacles and a door leaf with a movable lever rod guided therein interact in such a way that each hinge receptacle only becomes the active pivot axis by the insertion of the lever rod and the displacement of the lever rod from one receptacle simultaneously causes its insertion into the opposite receptacle, so that the door leaf can be opened selectively around a left or right pivot axis.

Description

1. Purpose of the invention

[0001] The purpose of the invention is to provide a door system that can be opened either on a left or right axis of rotation without requiring the door or door frame to be replaced or mechanically modified. The switching is purely mechanical, achieved via a sliding lever rod in the door leaf. 2. Technical problem

[0002] Conventional doors have a fixed opening direction (left or right). Changing this direction is complex, expensive, and often structurally impossible. Furthermore, in an emergency (e.g., fire, blockage, accident), doors can become impassable if the opening direction is unfavorable. 3. Technical field

[0003] The invention relates to the field of door technology, in particular door hinge and door frame systems, as well as safety-relevant building components in buildings. 4. Object of the invention

[0004] The task is to create a door system that: • allows for a freely selectable opening direction • can be switched between left and right rotation axis at any time • works without electronics or complex mechanics • provides an alternative opening direction in case of emergency • remains compatible with standard door leaves and frames 5. Solution to the task

[0005] The task is solved by a door system with: • a symmetrical door frame with four passive hinge mounts • a sliding lever bar integrated into the door leaf • Hinge mounts that only become the active axis of rotation when the lever rod is inserted • a mechanical switching principle in which pulling the lever rod out of one receptacle simultaneously causes it to be inserted into the opposite receptacle 6. Solution approach of the invention

[0006] The core of the invention is a continuous lever rod that is guided within the door leaf. This rod can be moved to the left or right. The hinge receptacles in the frame are passive and are only activated by inserting the rod.

[0007] This creates a selective axis of rotation that can be changed at any time, but only when the door is closed. 7. Components 7.1 Mechanical Module • Door frame with four hinge mounts • Upper and lower guide elements (centering cylinders) • Continuous lever bar in the door leaf • Mechanical locking in the 0-degree position (optional) • Door handle with toggle switch function (optional) 7.2 Electrical module (optionally retrofittable) • An electronic module is not required for the basic function of the invention. • The door system operates entirely mechanically. • However, an optional electronic add-on module can be retrofitted to enable additional functions, such as: • Lever position status monitoring • Electronic locking of the switching function • Integration into building automation systems • Safety-relevant sensors (e.g., fire or smoke detector coupling) • Motorized support of the lever movement • The electronic module is designed to operate independently of the basic mechanical principle and not to interfere with it. 8. Functionality and advantages • Reversible opening direction without modification • Always at least one active pivot axis → Door cannot fall out • Increased safety in emergencies • Easy assembly and maintenance • Compatible with standard door leaves • No electronics, no power source • Low production costs • High robustness 9. Compatibility with standard products

[0008] The system can be integrated into existing door frames, provided that symmetrical openings are provided.

[0009] The door leaf remains largely standardized; only the lever bar is integrated. 10. State of the art and comparison

[0010] Known systems include: • classic left / right doors • Swing doors (open in both directions, but without a defined axis of rotation) • Pivot systems (central axis, non-switchable) • Multi-joint hinges (complex, non-selective)

[0011] None of these systems offers a selectively switchable rotary axis. 11. Comparison to the state of the art

[0012] In contrast to existing solutions: • The opening direction is freely selectable • The switchover is done mechanically and without tools • The door always remains safely guided • The system is modular and universally applicable 12. Degree of innovation

[0013] The invention represents a new category of door systems: a mechanically switchable rotary axis system that did not previously exist.

[0014] The combination of a sliding lever rod and passive hinge mounts is novel and patentable. 13. Ergonomic and sustainable features • intuitive operation • no physical exertion • Long service life due to simple mechanics • Compatible with wood, metal and composite materials • reduced material consumption • The door frame is designed as a universal component and allows all variants of the door system, including left-hand, right-hand and reversible versions.

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