Omron vase spring

This article is a stub. You can help Deskthority by expanding it.

Omron vase spring is a single spring over membrane switch. It is covered in US patent 4733036 filed in 1986, with a priority date of 1984. The patent primarily covers semi-discrete modules mounted in a plate above a membrane assembly, with the vase spring as an alternative variant not depicted beyond the shape of the spring. The switches covered in the patent are specifically designed to be linear, and a force curve is given as a demonstration of this.

Keyboards

• Sony M35 Laptop (ca. 1985)

Gallery

Vase spring switches in a Sony M35 laptop.

• 
  Keyboard top
• 
  Main keyboard key switch
• 
  Key stem removed
• 
  Vase-like internal key switch spring
• 
  Membrane visible through key switch