As @tak mentioned, the max weight of the taxi is 250kg

The Whill Model-R that @pao suggested weighs about 57kg.

Your dad’s weight in kg is 136kg, so 136kg + 57kg is 193kg and should be ok.

The only thing is they are a bit expensive.

I know a rental place.

You can use this form:

https://www.accessible-japan.com/renting-wheelchairs-hoists-japan/

Good find!

His father’s weight is 136kg, so if he gets a scooter or wheelchair under 114kg he can get on a 250kg lift.

The maximum lift load of taxis for the physically handicapped is 250 kg, and 300 kg for special vehicles.

That means that your father’s weight is about 280 kg. There are only a few vehicles that can handle up to 300 kg, so I think it would be better to go on a diet.

Repards.

Tak

Hello.

There are no electric wheelchairs made in Japan that can support that weight. Therefore, I think it would be very difficult to rent one. However, I can think of a few ways. I will look into it.

Tak