Support Frame Lockable Rattle-Free Elements
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Solution Overview
Problem
Existing support frames with obliquely projecting elongated support elements require the form-fitting holding elements to be moved out of locking openings for vertical displacement, which is inefficient and cumbersome.
Innovation Solution
The support elements are designed with a pivoting mechanism that allows the form-fitting holding elements to engage and disengage by a lifting and pivoting movement, enabling the support elements to be fixed at different heights using a countersunk screw and nut system, and a clamping element that can be moved from a locking to a release position using a spring-loaded actuating member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the form-fitting holding elements are moved out of locking openings for vertical displacement, then the support element can be adjusted to different heights, but the operation becomes inefficient and cumbersome
Solution Approach 1:
The locking mechanism transitions from a static screw/threaded system to a dynamic lever-based system where the holding element can be quickly released by pivoting the lever out of engagement with the locking opening, enabling rapid height adjustment without cumbersome screw operations
Solution Approach 2:
The support element is divided into telescopic segments that can be independently adjusted, with each segment equipped with its own locking mechanism. This allows individual height adjustment of specific segments without affecting the entire structure, improving both adaptability and operational efficiency
2Ease of operation
If the support element is inserted with lateral play to enable pivoting movement, then the holding element can engage and disengage easily, but the structural stability may be compromised
Solution Approach 1:
The lever-based locking mechanism automatically engages when the support element is inserted, utilizing the natural positioning of the lever to snap into the locking opening. The lateral play is precisely controlled to allow automatic engagement without manual intervention, maintaining both ease of operation and structural stability
Solution Approach 2:
The lever is designed with asymmetric geometry where one end engages the locking opening while the other end provides the pivoting motion. This asymmetric design allows the lever to securely lock in the engaged position while still permitting easy release through pivoting, resolving the contradiction between operational ease and structural stability
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 design allows for easier height adjustment and release of the support elements, enhancing usability and efficiency by simplifying the process of engaging and disengaging the locking mechanism, and enabling the support frame to be adjusted to different working heights with reduced operational complexity.
Implementation Method 1
spring element (34) which supports the carrier (28) in the lifted position
Implementation Method 2
The form-fitting holding element can be formed by the head of a countersunk screw. The countersunk screw is screwed into a screw-in opening in the support element.
Data Source
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AI summary
The invention relates to a support frame, in particular a workbench or workpiece support, comprising a first support element (1), a second support element (2) pivotably attached to it, and retaining elements (6, 4) associated with the two support elements (1, 2). In a locking position, the retaining elements fix the two support elements (1, 2) in a first pivoted position, and in a release position, they allow the support elements (1, 2) to pivot into a second pivoted position. The retaining elements (6, 4) each have a clamping element (6) associated with one of the two support elements (1), which, in the locking position, clamps against a clamping flank associated with the other support element (2).The support frame has an elongated support element (1) projecting obliquely upwards in a vertical plane, in which an elongated support element (27) is telescopically inserted, which can be fixed to the support element (1) at different heights of the support (28) by means of a positive locking retaining element engaging in a locking opening, wherein the positive locking retaining element can be brought into and out of engagement in a locking opening by a pivoting movement of the support element (27) relative to the support element (1).