Articulated-Arm Cassette Awning With Adjustable Joint Pin
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Solution Overview
Problem
Self-supporting articulated-arm cassette awnings for motorhomes and trailers face challenges with fixed inclination angles, manufacturing tolerances leading to installation issues, and the need for adjustable height and angle to prevent collisions and ensure smooth operation, which current solutions inadequately address.
Innovation Solution
A self-supporting articulated-arm cassette awning design featuring a multi-part bracing or clamping means that can be slid and twisted within the brackets to transmit torque, allowing for continuous adjustable inclination and height adjustments of the articulated arms, integrated into the joint pin receptacle for stable and adjustable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed inclination angles are used in articulated-arm cassette awnings, then the structure is simpler and more stable, but the adaptability to different installation conditions and production tolerances is reduced
Solution Approach 1:
The patent applies the dynamics principle by replacing fixed inclination angles with continuously adjustable inclination angles. The adjustment device allows the awning arm to be positioned at any angle within a range, transforming a static structure into a dynamic one that can adapt to different installation conditions and compensate for production tolerances.
Solution Approach 2:
The patent implements parameter changes by enabling continuous variation of the inclination angle parameter. The adjustment mechanism allows the angle to be changed from fixed discrete values to a continuous range, providing flexibility to accommodate different mounting heights and positions while maintaining structural stability.
2Reliability
If fixed arm positions are used during closing, then the structure is simpler, but collisions with fabric roller or housing bottom cannot be avoided due to production tolerances
Solution Approach 1:
The patent applies dynamics by enabling dynamic adjustment of the arm height and angle during the closing process. The adjustment device allows the arm to be positioned at optimal heights to avoid collisions with the fabric roller or housing bottom, ensuring reliable and smooth operation throughout the service life.
Solution Approach 2:
The patent implements preliminary action by allowing the arm position to be adjusted in advance before closing. The height and angle can be pre-adjusted to account for production tolerances and wear, preventing collisions before they occur and ensuring smooth closing operation from the start.
3Adaptability or versatility
If adjustable inclination angles are implemented, then adaptability to different installation heights is improved, but the joint pin and awning arm joints must absorb entire load and torques requiring particularly stable solution
Solution Approach 1:
The patent applies dynamics by implementing a stable adjustment device that maintains structural integrity while allowing inclination angle variation. The device is designed to be continuously adjustable yet sufficiently strong to absorb the entire load and torques, providing both adaptability and strength simultaneously.
Solution Approach 2:
The patent implements parameter changes by allowing the inclination angle parameter to vary continuously while maintaining the strength and stability of the joint pin and awning arm joints. The adjustment mechanism is designed to preserve the load-bearing capacity even as the angle changes, ensuring both adaptability and structural strength.
Data Source
AI summary
The embodiments relate to a self-supporting articulated-arm cassette awning, in particular for motor homes or trailers, comprising articulated arms (20) that are pivotable at awning arm joints or shoulder joints (10), and brackets or shoulders (II) for connecting the entire awning (100) to the vehicle by means of fastening elements and for receiving joint pins (I) in an insertable, in particular, slidable manner and for at least limiting the twistability of joint pins (I) of those parts of the awning arm joint or shoulder joint that are fixed to the vehicle. Desirable is a compact, continuously variable twisting arrangement for the joint pin which, at the same time, is capable of absorbing the high torques of the extended awning. This is achieved in that at least one, in particular, at least one multi-part bracing or clamping means (III, IV) is provided which can be inserted, in particular slid, into at least one of the brackets or shoulders (II) and which acts in particular radially with regard to the brackets or shoulders (II). The bracing or clamping means (III, IV) can be twisted with regard to the associated bracket or shoulder (II) about its longitudinal axis (12), at least to a limited degree, and receives the joint pin (I) in a positive- or nonpositive-locking manner. Alternatively or additionally it is proposed that at least one height adjustment and/or tilt adjustment means and at least one twisting means of the associated joint pin (I), which twisting means is continuously adjustable about its longitudinal axis, are arranged coaxial to each other in the bracket (II).