| 摘要 |
PURPOSE:To easily and quickly attach and detach the accessory parts by putting the accessory parts added selectively to an electronic equipment into the main body of this equipment through an inserting open part of said main body and interlocking the interlock part of the equipment main body with the interlock part of the accessory part set at a part where this accessory parts does not confront with said open part. CONSTITUTION:An FDD unit 6 and a mask plate 9 can be attached to and detached from an electronic typewriter 1 via an interlocking structure. For this purpose, both the unit 6 and the plate 9 have interlocking pawls 7 and 10 respectively. The pawl 10 of the plate 9, for example, is inserted through an open part 11 and hooked into an interlock hole 12. Thus the pawl 10 interlocks the hole 12 and at the same time is pressed elastically to an upper plate set inside a case 4. Thus the pawl 10 is locked and at the same time the lower end part of the plate 9 is locked by the lower edge of the part 11 via a recess part 9a of the lower end part of the plate 9. Thus the plate 9 is fixed. Thus, the accessory parts can be attached in a simple and quick way with no use of a tool. Then the attachment performance of the accessory parts is improved.
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