| 摘要 |
A slide fastener has two stringers 20, 30 and a slider 5. The teeth 4 enter the slider at different levels. This means that the teeth do not have to bend away from each other during engagement, so the zip is suitable for joining two rigid objects. Each end stop has a pin 221a and an eyehole 321a which are joined by movement perpendicular to the stringers. |
