
Most modern televisions, computers, mobile phones and digital watches have alarm functions that turn on or sound alerts at a specific time.

Traditional mechanical alarm clocks have one or two bells that ring by means of a mainspring that powers a gear to quickly move a hammer back and forth between the two bells or between the interior sides of a single bell. In some models, the metal cover at back of the clock itself also functions as the bell. In an electronically operated bell-style alarm clock, the bell is rung by an electromagnetic circuit and armature to turn the circuit on and off repeatedly. Non-Patent Citations (1) * Cited by examiner, † Cited by third party TitleĮlectronic device, method and device for awakening the same.Digital ĭigital alarm clocks can make other noises. Patent Citations (3) * Cited by examiner, † Cited by third party Publication number Priority Applications (1) Application NumberĪpplications Claiming Priority (1) Application Numberįamily ID=50954281 Family Applications (1) Application NumberĬited By (1) * Cited by examiner, † Cited by third party Publication numberĪ kind of ball shape electric alarm clock waken up with smellĬitations (3) * Cited by examiner, † Cited by third party Publication number

flight formula alarm clock as claimed in claim 8, is characterized in that, described the first projection is provided with chamfering, and described the second projection is provided with rounding. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by 谢虹 filed Critical 谢虹 Priority to CN201410114080.3A priority Critical patent/CN103885330A/en Publication of CN103885330A publication Critical patent/CN103885330A/en Status Pending legal-status Critical Current LinksĪs shown in Figure 3 and Figure 4, described drive link is provided with projection, and described flying disc is provided with the standing groove 21 for placing described projection Projection coordinates flying disc 2 is connected closely with drive link with standing groove 21.Described projection comprises the first projection 31 of a rectangular structure, and described standing groove 21 is applicable to the first projection 31 and arranges.Described projection comprises that one is arranged on the second projection 32 that is cylindrical structure on described the first projection 31, and described flying disc 2 is provided with in described standing groove 21 bottoms dodges hole 22 for what dodge described the second projection 32.The first projection 31 of rectangular structure and the standing groove of rectangular structure 21 coordinate closely The second projection 32 is set and dodges hole 22 and coordinate and make drive link be connected tightr with flying disc 2.Described the first projection 31 is provided with chamfering, and described the second projection 32 is provided with rounding Arrange like this and facilitate the first projection 31 to be inserted in standing groove 21, also facilitate the second projection 32 to be inserted into and dodge in hole 22.Certainly, the present embodiment, projection also can be arranged to other structure.ĩ. Inventor 谢虹 Original Assignee 谢虹 Priority date (The priority date is an assumption and is not a legal conclusion.

Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number CN201410114080.3A Other languages Chinese ( zh)
