Qinbrolly
中文

Umbrella plastic part

Auto Latch / Catch

Overview

Made by
Qinxi in-house
Materials
POM, Spring steel insert, Stainless steel spring
Finish options
Natural (POM), Passivated steel spring, Zinc-plated spring

Manufacturing process & quality control points

Qinxi in-houseSupply-chain supportIn-house or supply chain
  1. 1

    Mould development

    Qinxi in-houseMold & Tooling

    Latch body tooled around the catch geometry that holds the runner in the open position.

    Quality control points

    • Catch profile & engagement depth · Gauge / dry fit with runner sample · First article
  2. 2

    Steel spring stamping / forming

    In-house or supply chainMold & Tooling

    Spring steel or stainless strip is stamped and formed for the latch spring; many factories buy this, hence the either tag.

    Quality control points

    • Spring dimension & force · Gauge + force test on spring tester · First article + 5 pcs per batch
  3. 3

    Injection moulding of latch body

    Qinxi in-houseInjection Molding

    POM injected for dimensional stability and low friction.

    Quality control points

    • Dimension · Caliper / gauge per drawing · First article + 1 pc per 2 h
  4. 4

    Latch assembly & reliability test

    Qinxi in-houseAssembly

    Latch is assembled with the spring and cycled against the runner. Latch failure is the classic reason a canopy will not stay open.

    Quality control points

    • Latch engagement · Open-close cycling to buyer spec, catch must release and hold every cycle · 5 pcs per batch
    • Spring fatigue · Extended cycling sample, no breakage or force loss · 1 pc per order

Used in

Automatic Open-Close 3-Fold UmbrellaAutomatic Open Stick Umbrella

Relevant compliance

Get a quote for Auto Latch / Catch

Custom materials, finishes and logos available. Send your drawing or sample.

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