| 摘要 |
An ignition device for igniting a foil cartridge ( 10 ) in an explosion-operated power tool includes an electrical insulator ( 24 ) arranged in the support ( 8 ), a pin-shaped electrode ( 25 ) located in the electrical insulator and having a tip ( 30 ) that communicates with surrounding environment via a channel ( 32 ) formed in the electrical insulator ( 24 ) and extending in a longitudinal direction of the pin-shaped electrode ( 25 ) and an electrically conducting annular electrode ( 27 ) supported on the support ( 8 ) in a region of the channel ( 32 ) and tightly surrounding the insulator ( 24 ), leaving the channel ( 32 ) free.
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