Patent ID: 9266705
Filing Date: 2016-02-23
CPC Classification: B60K,B60L,B60Y,B66F,F16H,Y02T

Claim Text:
1. A battery forklift comprising: a battery; a motor that includes a rotation shaft and is driven using the battery as a power source; a reduction device that reduces the speed of rotation of the rotation shaft and transmits the rotation to an axle; a case that accommodates the reduction device; and a drive wheel that is driven by rotation of the axle, wherein the reduction device includes a helical gear rotated integrally with the rotation shaft, a drive shaft formed integrally with the helical gear and extended in a vertical direction, an upper bearing located above the helical gear to support the drive shaft rotatably relative to the case, and a lower bearing located below the helical gear to support the drive shaft rotatably relative to the case, and the case includes a communication portion that communicates a lower void located below the upper bearing and an upper void located above the upper bearing.