Door Hinge Eccentric Adjustment Mechanism
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Solution Overview
Problem
Existing door or window hinges require loosening of screws to adjust the hinge parallel to the plate-like section and perpendicular to the hinge axis, which is inconvenient and lacks precision due to play in the screw head bearing.
Innovation Solution
The use of an eccentric mechanism with a clamping device consisting of a clamping bolt and sleeve allows for precise adjustment of the hinge components without the need to loosen screws, enabling parallel adjustment by rotating the eccentric, and an axially acting screw for easy adjustment along the hinge axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If screws are used to hold the plate-like section and intermediate piece together, then the hinge can be securely fixed, but adjusting the hinge parallel to the plate-like section requires loosening the screws first, which is inconvenient and time-consuming
Solution Approach 1:
The hinge transitions from a static screwed connection to a dynamic clamping connection. The clamping device allows the plate-like section and intermediate piece to be held firmly in position during operation, but can be easily released and repositioned by rotating the eccentric mechanism without unscrewing any fasteners. This dynamic capability enables continuous adjustment while maintaining secure fixation.
Solution Approach 2:
The adjustment mechanism changes the positional parameters of the hinge components through rotational movement of the eccentric. By rotating the eccentric, the clamping force is redistributed, allowing controlled displacement of the plate-like section relative to the intermediate piece. This parameter change enables precise adjustment in multiple directions without disassembling the connection.
2Measurement precision
If screws are used to fix the plate-like section and intermediate piece, then the connection is secure, but play in the screw head bearing reduces adjustment precision
Solution Approach 1:
The adjusting screw is extracted from the connection between the plate-like section and intermediate piece, and instead integrated into the intermediate piece itself. This eliminates the need for separate fastening screws that create play, while maintaining the secure connection through the clamping device. The adjustment function is separated from the fastening function, allowing precise adjustment without compromising connection stability.
Solution Approach 2:
The eccentric mechanism acts as an intermediary between the adjustment screw and the clamping device. It translates the rotational movement of the adjusting screw into controlled displacement of the plate-like section while maintaining the clamping force. This intermediary mechanism ensures that adjustment precision is not compromised by connection play, as the eccentric distributes the forces smoothly.
3Productivity
If multiple screws are used to secure the hinge components, then the connection is strong, but the adjustment process becomes more complex and time-consuming
Solution Approach 1:
The fastening function and adjustment function are merged into a single integrated mechanism. The clamping device with eccentric simultaneously provides secure fixation and enables easy adjustment. Instead of separate screws for fastening and adjustment, one adjusting screw controls both the clamping force and the positional adjustment, significantly simplifying the operation and increasing productivity.
4Adaptability or versatility
If the hinge uses a fixed plate-like section design, then the structure is simple, but adjustment options are limited
Solution Approach 1:
The hinge structure transitions from a fixed design to a dynamic, multi-directional adjustment system. The combination of the eccentric mechanism and clamping device enables adjustment in multiple directions (parallel to the plate-like section in different orientations and perpendicular to it), providing versatile adaptability while maintaining relatively simple structural components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides improved precision and ease of adjustment for the hinge, allowing for precise alignment and use in both orientations without the need to loosen screws, enhancing the overall usability and flexibility of the hinge.
Implementation Method 1
An intermediate piece (14) and a plate-like section (8) are movable relative to one another by means of a rotary device (15) via an eccentric (16)
Implementation Method 2
a clamping device, which is formed on one side by a clamping bolt (13) and on the other side by a sleeve (18) pressed onto the clamping bolt (13), and which exerts force on the plate-like section (8) and the intermediate piece (14) from opposite sides, thus holding them together
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a door hinge (1) or window hinge (1) having two hinge parts (3, 4) which are operatively connected to one another so as to be rotatable about a common hinge axis (2), wherein at least one door- or window-side first hinge part (3) has a plate-like portion (8) which interacts in a fixedly and releasably connectable manner with a holding piece (9) which can be inserted into a groove in the end side of the door or window, wherein the plate-like portion (8) is oriented in an imaginary plane running parallel to the hinge axis (2) and is adjustable with respect to the holding piece (9) in an imaginary plane running at a right angle to the plane of the plate-like portion (8), and wherein an adjustment screw (11) can be screwed into at least one thread (10) of the holding piece (9). Provision is made for a head (12) of the adjustment screw (11) to be arranged between an intermediate piece (14) and the plate-like portion (8) by means of a clamping device (5) which applies force to the plate-like portion (8) and the intermediate piece from opposite sides and thus holds them together.