Massage or physiotherapy treatment device, e.g. massage table, has height adjustment mechanism comprising telescopic lifting devices connected to underframe and upper frame

摘要

#CMT# #/CMT# The mechanism (4) for altering the distance between the underframe (2) and upper cover frame (3) comprises an arrangement which includes at least two telescopic lifting devices (6) having one end secured to the underframe and the other end secured to the upper frame. #CMT#USE : #/CMT# The device is e.g. a treatment bench or massage table. #CMT#ADVANTAGE : #/CMT# The risk of injury to the user, patient or a cleaner caused by body extremities becoming trapped in the height adjustment mechanism is reduced due to its central location and vertical adjustment. The absence of a scissor joint mechanism avoids the need for a treatment room having a higher ceiling. Heavier loads can also be supported. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a length section of the massage device. 2 : Underframe 3 : Upper cover frame 4 : Mechanism for altering distance between upper and lower frames 6 : Telescopic lifting devices 11 : Internally threaded tubes 13 : Externally threaded tubes 19 : Externally threaded rods #CMT#MECHANICAL ENGINEERING : #/CMT# The lifting devices each comprise an externally threaded tube (13) rotatably mounted inside an internally threaded tube (11) fixed to the underframe. The externally threaded tube also contains an internal thread for engaging with an externally threaded rod (19) fixed to a plate portion of the upper frame, the thread on the outside of this tube having the opposite pitch to the thread on the inside.