Push Catch Housing Mechanical Bushing Attachment
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Solution Overview
Problem
Existing push catches for containers risk damaging contents and preclude interior lining due to internal activation, and gluing the housing into the container wall is impractical as it can lead to adhesive leakage and permanent attachment, making the container unusable if damaged.
Innovation Solution
A push catch design featuring a housing with a radial bore and a bushing inserted into the container wall, which projects at a right angle, securing the housing mechanically without adhesives, allowing unlocking without interior penetration and avoiding gluing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing is glued into the container wall, then the housing is securely attached and cannot rotate or fall out, but the adhesive can leak out and damage the container exterior, and the container becomes unusable if the catch is damaged
Solution Approach 1:
The housing attachment system is segmented into multiple functional elements: the bushing inserted into the container wall, the housing receiving the bushing, and the shoulder providing mechanical support. This segmentation eliminates the need for adhesive while ensuring secure attachment through mechanical means alone.
Solution Approach 2:
The bushing acts as an intermediary element between the container wall and the housing. It is inserted into the container wall and receives the housing, providing a secure mechanical connection without requiring adhesive that could leak and damage the container exterior.
2Reliability
If the housing is glued into the container wall, then the housing is permanently secured, but the container cannot be reused if the catch is damaged
Solution Approach 1:
The catch system is segmented into separable components: the bushing remains permanently attached to the container wall, while the housing can be removed and replaced. This allows the container to be reused even if the housing or push element is damaged, as only the catch components need replacement, not the entire container.
Solution Approach 2:
The attachment system transitions from a static permanent bond (adhesive) to a dynamic mechanically reversible connection. The housing can be inserted into and removed from the bushing, enabling easy replacement and maintenance while maintaining secure attachment during operation.
3Ease of operation
If a lever moves into the container interior for unlocking, then the catch can be activated, but the goods inside may be damaged and lining cannot be applied
Solution Approach 1:
The lever mechanism is extracted from the container interior and repositioned to the exterior. The push element is activated from outside the container by inserting a tool into the opening, eliminating the need for internal levers that could damage goods or prevent lining application.
Solution Approach 2:
A tool inserted through the opening acts as an intermediary to activate the push element from the exterior. This allows catch activation without any parts moving into the container interior, protecting both the goods and enabling safe application of interior lining.
Data Source
AI summary
The invention relates to a push catch (2) for containers (1), comprising a push element (21) which is introduced into a housing (22) which is set in a container wall. A shoulder (23) of the housing (22) is supported on the container wall. The push element (21) is under the influence of a spring (24). The housing (22) comprises a radial bore (22′) and a bushing (3) is placed in the container wall and protrudes at least in sections into the bore (22′).