Patent ID: 9389495
Filing Date: 2016-07-12
CPC Classification: F16M,G03B

Claim Text:
1. An elevating mechanism of a projection apparatus, comprising: a housing attached to the inside of the projection apparatus; a guide slot formed on a surface of the housing and having a plurality of sections to form a sliding path, wherein each two adjacent sections are connected and make an included angle with each other, at least one of the sections has multiple teeth, and a recess is formed between each two adjacent teeth; an adjustable foot mount sliding relative to the housing; at least one resilient member disposed inside the housing and leaning against the adjustable foot mount; and a sliding arm having a fixed end and a free end, the fixed end being fixed on the adjustable foot mount, and the free end being slidably coupled to the guide slot and moving along the sliding path to store the adjustable foot mount inside the housing or release the adjustable foot mount from the housing, wherein, when the sliding arm slides on the section having the teeth and is pressed by the teeth to deform, the free end of the sliding arm engages with any of the recesses to hold the adjustable foot mount at a selected position.