HELMET LOCKING DEVICE

摘要

A device for locking an article to a construction, comprises a body portion securable to a suitable element of the construction. A clevis has limbs which are expendable through co-operating apertures in the article and thence into said body portion. Locking means in the body enable at least one limb of the clevis to be lockingly held in said body portion, thereby preventing unauthorized removal of said article from the construction.