Telescopic Rail Clamping Structure for Secure Sliding Assembly
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Solution Overview
Problem
Existing telescopic systems face challenges in simplicity of construction, ease of assembly, and the ability to handle larger load moments, often requiring complex assembly processes and structural changes to the profile rails to secure sliding elements.
Innovation Solution
The telescopic system features profile rails cut to length with sliding elements fixed perpendicular to the longitudinal direction via clamping elements in a non-displaceable manner, utilizing a clamping fit within longitudinal grooves or ribs without additional structural changes, allowing for secure sliding and increased load capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sliding elements are secured using transverse bolts engaging in transverse bores, then axial displacement is prevented, but structural modifications to the profile rails are required
Solution Approach 1:
The longitudinal grooves and ribs are pre-formed on the profile rails during manufacturing, eliminating the need for field modifications. The clamping elements are designed to engage these pre-formed features, securing the sliding elements without requiring transverse bores or structural changes to the profile rails.
Solution Approach 2:
The invention extracts the securing function from the profile rail structure itself and places it in separate clamping elements. These clamping elements can be independently attached to the pre-formed longitudinal grooves and ribs, separating the securing mechanism from the structural integrity of the profile rails.
2Reliability
If sliding elements are fixed with notches and tabs to prevent displacement, then displacement is prevented, but assembly complexity increases
Solution Approach 1:
Instead of cutting notches into the profile rails to receive tabs on the carriage, the invention inverts the approach by providing longitudinal grooves and ribs that receive clamping elements. The clamping elements then secure the sliding elements, reversing the traditional notch-tab configuration and simplifying the manufacturing process.
Solution Approach 2:
The securing mechanism is segmented into separate functional components: the longitudinal grooves and ribs on the profile rails, the clamping elements with clamping fits, and the sliding elements. This segmentation allows each component to be manufactured independently and assembled in a straightforward sequence, reducing overall assembly complexity.
3Ease of operation
If sliding elements are designed like rails and mounted to slide between profile rails, then sliding is enabled, but bending stress increases under load
Solution Approach 1:
The invention transitions from a rail-like sliding element design to a clamped component design where the sliding function is achieved through the interface between the clamping element and the profile rail's longitudinal groove. This dimensional change allows the sliding element to be securely held while reducing bending stress through proper force distribution.
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 approach simplifies assembly, ensures the sliding elements are securely held on the profile rails, and allows the system to handle larger load moments without the need for further processing or structural modifications, enabling a more robust and efficient telescopic mechanism.
Implementation Method 1
The sliding element (3) is connected in a non-displaceable manner with respect to a sliding plane (G) defined by the longitudinal direction (l) and a first transverse direction (q1) perpendicular to the longitudinal direction (l) to a clamping element (4) with respect to the sliding plane (G), wherein the clamping element (4) is arranged in a clamping fit, here in a longitudinal groove (22) of the longitudinal profile (21) of this profile rail (2)
Implementation Method 2
The clamping element (4) is arranged in a clamping fit, here in a longitudinal groove (22) of the longitudinal profile (21) of this profile rail (2), to which the sliding element (3) is attached
Implementation Method 3
Each of these profiles (2) encloses a longitudinal profile (21) with longitudinal grooves (22) and longitudinal ribs (23). A carriage with several sliding elements (3) is fixed to one of the two extruded profiles (2). The two profiles (2) slide against each other via the sliding elements (3)
Data Source
Figure 1A~2D
Figure 3A~5B
Figure 6A~10C
AI summary
The invention relates to a telescopic system (1), comprising at least two profiled rails (2; 2a; 2b) which are guided linearly on one another in the longitudinal direction (l), are movable relative to one another over a distance and each have a longitudinal profile (21) with longitudinal grooves (22) and/or longitudinal ribs (23), wherein at least one sliding element (3) is provided on each profiled rail (2; 2a; 2b), via which sliding element the at least two profiled rails (2; 2a; 2b) bear against one another in a slidable manner, and which sliding element is arranged so as to be fastened in an axially non-displaceable manner, at least with respect to the longitudinal direction (l), on the longitudinal profile (21) of the associated profiled rail (2; 2a; 2b). Such a telescopic system is intended to be simpler in design and able to be mounted more easily. According to the invention, this is achieved in that the sliding element (3), at least with respect to a sliding plane (G) defined by the longitudinal direction (l) and a first transverse direction (q1) perpendicular to the longitudinal direction (l), is then connected to a clamping element (4) so as to be fixed against displacement on the profiled rail (2; 2a; 2b), wherein the clamping element (4) is arranged with a clamping fit on the longitudinal profile (21) of the profiled rail (2; 2a; 2b), to be precise in or on a longitudinal groove (22) and/or on a longitudinal rib (23).