A drag mechanism includes a first drag unit, a second drag unit and a switching mechanism. The first drag unit brakes a spool shaft of a spool. The first drag unit includes a first drag knob that is immovable in a back and forth direction and rotatably mounted on an outer peripheral surface of a cylindrical portion. The second drag unit brakes the spool shaft in a position frontward of the first drag unit. The second drag unit includes a second drag knob that is immovable in a back and forth direction and rotatably mounted on an outer peripheral surface of the cylindrical portion. The switching mechanism switches the first drag unit between a drag enabling state and a drag disabling state.

 
Web www.patentalert.com

< Triple transgenic mouse model of Alzheimer's disease

> Fish stand that catches water

~ 00460