Fixed-Hole Approach

The fixed-hole approach provides connection holes in the storage body, where separate connectors attach to it. This page discusses the interface principle of fixed connection positions. The shape, assembly direction, and locking method need to be assessed for each design.

How connector positions affect reuse

For a small accessory with a single mounting point, a local connection hole may be enough. The body only needs suitable space for the interface, while the board connector changes to suit the board.

A body with multiple mounting points also needs to account for their spacing. Suppose two fixed holes in the body are spaced A apart, while another board offers mounting points spaced B apart. Changing only the end of the connector that enters the board may not reconcile A with B. Compatibility also depends on whether the connectors can offset the positions and how those offsets affect assembly and loading.

A fixed-hole design can therefore separate the connectors from the body, but its compatibility across board types still needs to be established.

Trade-offs of fixed positions

Fixed positions make the assembly relationship clear and can reduce the space taken up by the interface on the back of the body. When the accessory and target board are known, this may be a simple approach.

To cover more hole spacings, multiple optional holes or connectors with an offset could be studied. Each addition should be checked for whether it actually broadens compatibility and whether it makes assembly or use more complicated.

An existing reference

In earlier research, the IKEA SKÅDIS Universal Hook Set was one reference for this type of separate-hook interface. See the original model page for the specific model and accompanying bodies.

This interface analysis does not provide the model’s mating dimensions or establish that it fits round holes, square holes, or other board types. Download and use the model under the license on the author’s page.

What RONZ is looking at

We will keep the simplicity of this local interface as a comparison baseline. For bodies that need multiple mounting points, the key questions are whether the body can be kept after changing boards, and whether the additional structures used to adapt the spacing are worthwhile.

Back to Existing Designs · Compare the Universal-Slot Approach