| 摘要 |
PROBLEM TO BE SOLVED: To provide a spray head with a degassing mechanism for use in an aerosol container whose button can be reliably and automatically locked at a pushed-down position for degassing by a locking piece hidden below the button only by an operation of swinging the button up and down. SOLUTION: A locking piece 30 as a degassing mechanism is foldably extended downwardly from a lower end opposite to a coupled side on a peripheral surface 22 of a button 20. Its length is specified so that a swing orbit of its tip passes through a periphery 11 of an upper surface. A protrusion 35 is formed toward a center of a base on an upper end portion opposite to a coupled side of a peripheral surface 12 of the base 10. In addition, an engaging groove 31 in which the protrusion 35 engages while a part of the locking piece toward a base end from a longitudinally middle position of the piece 30 is in elastic contact with a base peripheral surface 13 is formed at the longitudinally middle position of the locking piece 30. The button 20 is swung up and down, whereby the tip of the piece 30 comes into contact with the upper surface periphery 11 and automatically folded when restoring the locking piece 30 from a position where it is made to escape above the periphery 11 to a normal position. If the button 20 is further pushed down, the protrusion 35 automatically engages into the engaging groove 31 during a process that the locking piece 30 slides the protrusion 35. |
