Hand held appliance

Abstract

A hair care appliance comprising a body having an outer wall, a chassis extending within the outer wall, wherein the chassis comprises a locking feature and the body comprises an engaging feature adapted to retain the chassis in position within the outer wall when the locking feature is rotated with respect to the engaging feature. The outer wall may comprise an inner surface and the engaging feature extends radially inwards from the inner surface. The engaging feature may comprise a rib that extends from an inner surface of the outer wall. The engaging feature may extend at least partially around the inner surface of the outer wall. The engaging feature may comprise a pair of engaging features which may be radially spaced apart. The locking feature may comprise a locking rib which may extend radially from the chassis towards the outer wall.

1 . A hair care appliance comprising a body having an outer wall, a chassis extending within the outer wall, wherein the chassis comprises a locking feature and the body comprises an engaging feature adjacent both the first end and the second end, and wherein the locking and engaging features are configured to cooperatively retain the chassis in position within the outer wall when the locking features are rotated with respect to the engaging features. 
     
     
         2 . The appliance of  claim 1 , wherein the outer wall comprises an inner surface and the engaging feature extends radially inwards from the inner surface. 
     
     
         3 . The appliance of  claim 1 , wherein the engaging feature comprises a rib that extends from an inner surface of the outer wall. 
     
     
         4 . The appliance of  claim 2 , wherein the engaging feature extends at least partially around the inner surface of the outer wall. 
     
     
         5 . The appliance of  claim 1 , wherein the engaging feature comprises a pair of engaging features. 
     
     
         6 . The appliance of  claim 5 , wherein the pair of engaging features are radially spaced apart. 
     
     
         7 . The appliance of  claim 1 , wherein the locking feature comprises a locking rib. 
     
     
         8 . The appliance of  claim 7 , wherein the rib extends radially from the chassis towards the outer wall. 
     
     
         9 . The appliance of  claim 1 , wherein when the chassis is retained in position, the chassis is constrained both radially and longitudinally within the outer wall. 
     
     
         10 . The appliance of  claim 1 , wherein the chassis comprises a first part and a second part. 
     
     
         11 . The appliance of  claim 10 , wherein the first part of the chassis connects to the second part of the chassis in one orientation. 
     
     
         12 . The appliance of  claim 11 , wherein the first part of the chassis and the second part of the chassis each comprise at least two asymmetrical cooperating projections and recesses which engage in only one orientation. 
     
     
         13 . The appliance of  claim 1 , wherein the body houses a heater and the heater is mounted on the first part of the chassis. 
     
     
         14 . The appliance of  claim 12 , wherein the body houses a heater and the heater is mounted on the first part of the chassis, and wherein the heater comprises a locating ring which cooperates with the at least two asymmetrical cooperating projections and recesses on the first part of the chassis such that the heater can only be mounted on the first part of the chassis in one orientation. 
     
     
         15 . The appliance of  claim 1 , wherein the body comprises a printed circuit board (PCB) and the PCB is mounted on the second part of the chassis. 
     
     
         16 . The appliance of  claim 15 , wherein the body comprises a PCB baffle connected to the PCB. 
     
     
         17 . The appliance of  claim 16 , wherein the PCB baffle comprises orienting features such that the PCB and PCB baffle are mountable on the second part of the chassis in one orientation. 
     
     
         18 . The appliance of  claim 1 , wherein the body comprises a retaining wall wherein the retaining wall retains the chassis in a rotated position with respect to the outer wall. 
     
     
         19 . The appliance of  claim 18 , wherein the retaining wall extends over the chassis at one end of the body. 
     
     
         20 . The appliance of  claim 19 , wherein the retaining wall engages with the outer wall and the chassis to maintain the chassis in a rotated position with respect to the outer wall. 
     
     
         21 . The appliance of  claim 17 , wherein the chassis comprises a first part and a second part and the retaining wall extends from one end of the body over a junction formed between the first part of the chassis and the second part of the chassis. 
     
     
         22 . The appliance of  claim 21 , wherein the retaining wall comprises a tube that extends at least partially along the body from one end and radially within the chassis over the junction. 
     
     
         23 . The appliance of  claim 22 , wherein the tube comprises a lip seal extending radially around the tube between the tube and the chassis. 
     
     
         24 . The appliance of  claim 23 , wherein an O-ring is provided between the retaining wall and one or both of the outer wall and the chassis. 
     
     
         25 . The appliance of  claim 24 , wherein the O-ring is disposed between the retaining wall and the outer wall. 
     
     
         26 . The appliance of  claim 1 , wherein the primary fluid outlet is at a downstream end of the body. 
     
     
         27 . The appliance of  claim 26 , wherein the inner wall has a downstream end and an upstream end and the downstream end at least partially defines the primary fluid outlet. 
     
     
         28 . The appliance of  claim 27 , wherein the upstream end of the inner wall extends towards the outer wall. 
     
     
         29 . The appliance of  claim 27 , wherein the inner wall includes a sealing portion that extends to the outer wall. 
     
     
         30 . The appliance of  claim 29 , wherein the sealing portion is between the upstream end and downstream end of the inner wall. 
     
     
         31 . The appliance of  claim 1 , wherein the appliance is a hairdryer.