| 摘要 |
A keyboard assembly comprises at least one key unit including a plurality of keys each having a front end and a base end, a common key support supporting the keys, and a connecting portion provided on the base end of each of the keys and connecting between each of the keys and the common key support. The keys are formed integrally with the connecting portion and the common key support in a manner such that the keys are each connected via the connecting portion to the common key support for swinging about the common key support in a direction of depression and release of the keys and in a direction in which the keys are juxtaposed. The keys define gaps therebetween, each of which becomes progressively larger toward the front end of an associated one of the keys. Guided projections are provided on the keys, and guides on a frame in which the key unit is mounted, for causing the keys to run parallel with each other by deforming the connecting portion of each of the keys to thereby engage the key unit with the frame.
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