Foldable wheelchair for disabled person, has pair of armrests, set of rear legs that is pivoted to front by rear folding device, and backrest pivoted forward by double folding device with fine adjustment of tilt angle

摘要

The chair (20) has a pair of armrests (25) connected with a backrest (24), where the armrests are able to be hinged and folded. A set of front legs (21) is folded by a front folding device (26). A set of rear legs (22) is pivoted to the front by a rear folding device (27). The backrest is pivoted forward by a double folding device (28) with a fine adjustment of a tilt angle. The double folding device has hinge pins (282), and spring-loaded balls (283) of a seat frame (23) on the bottom of lower joint forks (281).