Convertible chair

A convertible chair adapted for conversion between a sitting configuration and a kneeling configuration, the chair comprising:

• a base support;
• a knee-back rest movably coupled to the base support by a pivot arm, the pivot arm arranged to pivot relative to the base support between a first pivot arm position in which the knee-back rest is in a first knee-back rest position corresponding to the sitting configuration in which the knee-back rest is positioned for use as a back rest and a second pivot arm position in which the knee-back rest is in a second knee-back rest position corresponding to the kneeling configuration in which the knee-back rest is positioned for use as a knee rest;
• a seat movably coupled to the base support by a coupling mechanism, whereby the seat is arranged to move relative to the base support between a first seat position corresponding to the sitting configuration and a second seat position corresponding to the kneeling configuration;
• and
• a connecting arm linking the pivot arm and the seat, the connecting arm having a first end pivotally coupled relative to the seat and a second end pivotally coupled to the pivot arm whereby the seat and the knee-back rest are operably linked to each other, wherein the second end of the connecting arm is pivotally coupled to the pivot arm at a point between the base support and the back-knee rest, wherein:
• the coupling mechanism comprises a releasable catch arranged to couple the pivot arm and the seat when in the first seat position and the first pivot arm position, thereby restricting pivotal movement of the pivot arm relative to the base support, the releasable catch arranged to release by pivotal movement of the seat away from the first seat position;
• and
• the coupling mechanism further comprises a control mechanism arranged to control and restrict the range of movement of the seat relative to the base support between the first seat position and the second seat position when the releasable catch is released, wherein the seat is arranged to translate and pivot relative to the base support between the first seat position and the second seat position.