| 摘要 |
A fluid dispenser pump including a first piston, a second piston, and a dispenser head with a dispenser orifice, for actuating the pump, a shutter arranged upstream from the dispenser orifice, the shutter movable between closed and open positions. The second piston is formed outside a hollow part and is slidable inside the dispenser head. The first piston is slidable inside the hollow part, the hollow part including an axial opening defined by a radial edge through which passes a stem portion of the shutter. The stem portion is between a proximal radial shoulder and a distal radial shoulder of the shutter, the shutter being moved from its closed position to its open position by the radial edge of the hollow part co-operating with the distal radial shoulder, and being moved from its open position to its closed position by the radial edge co-operating with the proximal radial shoulder. |
| 主权项 |
1. A fluid dispenser pump comprising a first piston, a second piston, and a dispenser head, provided with a dispenser orifice where fluid leaves the dispenser pump, for actuating said pump, a shutter being arranged upstream from said dispenser orifice, said shutter being movable between a closed position, in which the shutter closes the dispenser orifice and an open position, in which the shutter no longer closes the dispenser orifice, said second piston being formed outside a hollow part and being slidable inside said dispenser head, said first piston being slidable inside said hollow part, wherein said hollow part includes an axial opening that is defined by a radial edge through which passes a stem portion of the shutter, said stem portion being defined between a proximal radial shoulder and a distal radial shoulder of the shutter, said shutter being moved from the closed position to the open position by said radial edge of said hollow part co-operating with said distal radial shoulder, and being moved from the open position to the closed position by said radial edge co-operating with said proximal radial shoulder; and said shutter is movable relative to the hollow part. |
