Pivoting Locking Connector for Detachable Seating Furniture Backrest
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Solution Overview
Problem
Seating furniture, such as armchairs and sofas, are heavy and cumbersome, making assembly and transport difficult.
Innovation Solution
A connecting device with a detachable and pivotable mechanism that allows the backrest to be easily detached and transported separately from the seating body, featuring a locking mechanism and pivoting mechanism for secure attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If seating furniture is designed as a complete unit, then structural stability is improved, but transportability and handling become difficult
Solution Approach 1:
The connecting device divides the seating furniture into separable components (backrest and body) that can be easily detached and reattached. The device includes a first part connectable to the backrest and a second part connectable to the body, allowing the furniture to be segmented for transport and reassembled for use, directly resolving the contradiction between structural stability and transportability.
2Ease of operation
If a detachable connection is provided, then transportability is improved, but risk of accidental detachment increases
Solution Approach 1:
The connecting device incorporates a pivoting mechanism where the first part can pivot relative to the second part. The detachment is designed to occur only after pivoting into a specific pivoting position, creating a dynamic safety mechanism. This ensures the connection remains secure during normal use but allows intentional detachment when properly positioned, resolving the contradiction between transportability and connection security.
Solution Approach 2:
The device requires preliminary pivoting action before detachment can occur. The first part must be pivoted into a specific position to enable detachment, preventing accidental release. This preliminary action ensures that only intentional detachment attempts (after proper positioning) will succeed, maintaining connection security while enabling transportability.
3Reliability
If a locking mechanism is added to prevent accidental detachment, then connection security is improved, but device complexity increases
Solution Approach 1:
The pivoting mechanism itself serves as the security feature rather than adding a separate locking mechanism. The dynamic requirement to pivot into a specific position before detachment creates inherent security without complex additional components. This elegant solution improves connection security while minimizing increases in device complexity.
Data Source
Figure 1~5
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AI summary
The invention relates to a connecting device for a piece of seating furniture, comprising: a first part (3) and a second part (4), wherein the first part (3) is provided and designed to be connected to a backrest (101) of a piece of seating furniture (100), and the second part (4) is provided and designed to be connected to a body (102) of the piece of seating furniture (100).The connecting device further comprises a detachable connection between the first part (3) and the second part (4), wherein the detachable connection comprises: a locking mechanism (7, 8) for a positive-locking connection between the first part (3) and the second part (4), and a pivoting mechanism (33, 43, 5) in which the first part (3) and the second part (4) are pivotably connected to each other by a pivot axis (5), wherein the pivoting mechanism (33, 43, 5) is designed and configured such that the first part (3) can only be detached from the second part (4) after pivoting into a pivot position, and wherein the detachable connection is designed and configured such that the first part (3) can only be pivoted and pivoted into the pivot position in order to be detached from the second part (4) after the locking mechanism (7, 8) has been unlocked.The invention further relates to a piece of furniture for seating and a backrest with such a connecting device.