Trigger dispensing head for a compact dispenser

A trigger dispensing head for dispensing a liquid product, configured to be applied to a bottle of a dispensing device, the trigger dispensing head comprising:

• a frame for supporting components of the trigger dispensing head, comprising a connecting portion for connection to the bottle, the connecting portion comprising an annular skirt having a skirt axis;
• a piston chamber, supported by the frame, having extension along a piston axis, and a piston sealingly sliding in the piston chamber, between a resting position and a dispensing position in which the liquid product is dispensed outside;
• a dispensing pipe, supported by the frame, fluidly in communication with the piston chamber, for dispensing, at the front, the liquid product, the dispensing pipe having extension along a dispensing axis, wherein the piston axis and the dispensing axis lie on an imaginary sagittal plane;
• a trigger supported by the frame and adapted to bias the piston from the resting position to the dispensing position;
• an at least partially elastic return element supported by the frame and adapted to bias the piston, permanently and either directly or indirectly, from the dispensing position to the resting position, wherein the return element comprises two arms, and wherein each arm of the two arms has extension between a lower end and an upper end and is arranged in a respective part of the sagittal plane;
• and
• a lower backing part, supported by the frame, having a main surface said lower ends of the return element being in contact with the main surface and freely movable thereon in receding and approaching relative to the upper ends between a plurality of zones of said main surface distanced along the skirt axis.