Window Handle Holding Element Clamping Mechanism
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Solution Overview
Problem
The existing methods for attaching door or window handles to frames require significant work and additional holes, as dowels need to be inserted and drilled into the frame, making the process cumbersome and inefficient.
Innovation Solution
A holding element with a base body and rotating receiving body that includes a clamping element, which can be adjusted from an assembly position to a working position using a tightening element, allowing the handle to be securely mounted without additional holes, using a clamping mechanism that rests on the frame's wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dowels or expansion dowels are used to attach rosettes to the window frame or door leaf, then the handle can be securely fixed, but additional holes must be drilled and significant work is required for installation
Solution Approach 1:
The holding element is divided into functional segments: a base body for insertion, clamping elements for securing, and a receiving body for the polygon. This segmentation allows each part to perform its specific function efficiently, with clamping elements providing secure fixation without requiring pre-drilled holes for dowels
Solution Approach 2:
The clamping elements are designed to be movable relative to the base body, transitioning from a retracted position during insertion to an extended clamping position for securing. This dynamic mechanism enables automatic clamping action that eliminates the need for static dowel fixation and complex installation procedures
2Ease of operation
If traditional rosette attachment methods are used, then the handle can be mounted, but additional holes beyond the receiving opening must be created in the window frame or door leaf
Solution Approach 1:
The holding element serves multiple functions within a single component: it provides the receiving opening for insertion, contains movable clamping elements for securing, and includes a receiving body for the polygon. This multi-functionality eliminates the need for separate dowel holes, as the holding element itself performs both insertion and fixation functions
Solution Approach 2:
The clamping elements are nested within the base body in a retracted state, allowing the holding element to be inserted through the receiving opening. Upon actuation, the clamping elements extend outward from the base body to engage the surrounding material, providing fixation without requiring additional pre-drilled holes
3Strength
If the clamping element is extended to clamp the holding element securely, then fixation strength is improved, but the structure becomes more complex
Solution Approach 1:
The clamping mechanism is designed to be self-actuating through a simple actuator that, when rotated, automatically drives the clamping elements outward from the base body. The geometry of the recesses and cam surfaces converts the rotational motion into radial clamping motion, eliminating the need for complex actuation mechanisms while achieving strong clamping force
Data Source
Figure 1
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Figure 4~5
AI summary
The invention relates to a holding element (4) for a door or window handle that can be mounted on a receiving opening of a window frame (1), a door leaf or the like, having a base body (5) with a bearing surface (6) for bearing on a visible side (25) or an inner side (26), which faces the frame or door leaf interior, of a wall (19) of a window frame (1), door leaf or the like, a receiving body (10, 12) which is rotatably mounted in the base body (5) perpendicularly to the bearing surface (6) and has a bearing opening (14) for receiving and bearing a polygon (3) which is fixed in a handle neck (21) of the door or window handle (2) and projects therefrom, wherein a lateral surface (23) of the base body (5) has at least one aperture (24) in which a clamping element (7) is mounted, wherein the at least one clamping element (7) can be moved from a mounting position, in which the clamping element (7) lies in the aperture (24) in the lateral surface (23) of the base body (5), into a working position, in which the clamping element (7) protrudes radially outward from the aperture (24) in the lateral surface (23) of the base body (5), wherein, in the working position, the at least one clamping element (7) bears on a side, opposite the bearing surface (6) of the base body (5), of the wall (19) of the window frame (1), door leaf or the like.