Case for containing electrical instrument
AssigneeCitizen Electronics Co., Ltd.
InventorYoshizumi Ohta
Life of this patent
Estimating the term…
Abstract
A case for containing an electrical instrument, comprises a frame having a peripheral wall portion, a cover member having a peripheral wall portion fitted on the peripheral wall portion of said frame and configured to form a space for containing the electrical instrument between the frame and the cover member, at least one hole provided in one of the peripheral wall portions of the frame and the cover member to fix the frame and the cover member, and a protrusion provided on the other of the peripheral wall portions of the frame and the cover member for being inserted in said hole.
Claims6
A case for containing an electrical instrument, comprising:
- a frame having a peripheral wall portion;
- a cover member having a peripheral wall portion fitted on the peripheral wall portion of said frame and configured to form a space for containing the electrical instrument between the frame and the cover member;
- at least one hole provided in one of the peripheral wall portions of the frame and the cover member to fix the frame and the cover member;
- and
- a protrusion provided on the other of the peripheral wall portions of the frame and the cover member for being inserted in said hole.
A micro-speaker comprising:
- a frame;
- a sound generator attached to the frame and including a vibrating plate to which a voice coil is fixed, a yoke, a magnet fixed to the yoke, and a top plate fixed to the magnet;
- a cover member attached to the frame for protecting the vibrating plate;
- a plurality of protrusions provided on a peripheral wall portion of the frame;
- and
- a plurality of holes provided in a peripheral wall of the cover member for inserting the protrusions;
- said cover member being fixed on said frame by inserting said protrusions in said holes.
Dependencies are inferred from the claim text.