The ornamental design for a shower cubicle, as shown and described.
1. Shower cubicle
1.1 : Front view of cubicle
1.2 : Right side view of cubicle
1.3 : Left side view of cubicle
1.4 : Upper level view of cubicle
1.5 : Lower perspective view of cubicle
1.6 : Front perspective view of cubicle
1.7 : Rear perspective view of cubicle
Shower cubicle with rotating cylinder for transporting users with reduced mobility to the cubicle, whose cylinder occupies the front of the cubicle, accessing it through a double-leaf side door; the cylinder is mounted on a lower axle anchored to the floor that crosses the shower tray and its base, which forms a cavity to house transmission elements, to allow the rotation of the cylinder on the lower axle and upper axle, fixed to a profile for the passage of a water pipe that crosses the upper axle to reach the shower head.