This electric razor was manufactured by Conair. It is used for personal grooming, such as shaving or trimming of facial hair. It is able to provide a close shave or cut longer hair with included attachments.
How It Shaves
The motor is powered by two AA batteries and turns an offset shaft. The rotation of the offset shaft is translated into only horizontal motion by allowing the offset shaft to move freely within a vertical slit on the blade base mount. This in turn moves the moving blade against a stationary blade to cut hair.
-Shaver is able to cut hair
-Will not cut face
-Long battery life
-Fits into a human hand
-Can trim beards/sideburns
-Hairs cut per pass (%)
-Angle of blade (degrees)
-Motor Efficiency (%) or Battery life (time)
-Fits users grip (% of population)
-Adjustable length (mm)
-Users like it (%)
The table belows lists the components for the Conair Electric Razor:
|Part #||Part Name||Category||Function||Material||Picture|
|1||Primary Housing||Structural Component||Provides a mount for all other parts, user holds this part||Plastic|
|2||Electric Motor||Input||Moves the blade||Metal|
|3||Battery Door||Structural Component||Covers and holds batteries in place||plastic|
|4||Upper Housing||Structural Component||Holds taper control switch and serves as a mount for cutting heads||Plastic|
|5||Blade Base Mount||Motion Conversion Element||Serves as a mount for both blades and converts the motion of the motor output shaft to the side to side motion of the blade||Plastic with metal springs|
|6||Stationary Blade||Structural Element||Guides hairs to be cut and serves as an anvil for the moving blade||Metal|
|7||Moving Blade||Output||Cuts the hairs that have been guided by the stationary blade||Metal|
|8||Snap Mount||Structural Element||The blade base mount or nosehair trimmer snaps into the tabs on this part||Metal|
|9||Screws||Structural||Holds device together||Metal|
Computer Rendered Components
Analysis of Rendered Components
The decisions that had to be made in the design of this component include the size of the motor for it to fit within the primary housing, the weight of the motor to meet the goals of a low weight shaver, the power produced by the motor in order for it to be able to cut hair efficiently, and the amount of power needed to be supplied to the motor for it to run properly.
The critical features of this motor are the offset bar to generate only side to side motion of the razor blade and the links going to the motor that connect the offset bar. The critical dimensions of this motor are its overall size compared to the primary housing and the size of the offset bar to give the right amount of side to side motion for cutting hair.
The loading that will be placed on the motor will be cyclic loading as it completes every revolution. There will also be cyclic loading on the components connecting to the motor.
To evaluate the performance of the motor it could be hooked up to a power source and tested to see how long it would run. The shaft could also be hooked to different weights for different trials to determine how much work or power the motor is able to produce.