I was looking up some things about the Emmental, which brought to my attention that there are some nice distractions in Trubschachen. I'd certainly not want you to miss your bus(es), but I thought I'd mention them, in case there was a gap in your busy schedule that day.:
The commune ( die Gemeinde) of Trubschachen has a nice website, unfortunately, not in English.
However, the pictures on the hjome page are nice, and some of it is easy to understand.
"Unser Dorf" means Our Village
Under Leben und Arbeiten (Life and Work) you can find:
www.trubschachen.ch/le ben-arbeiten/grundversorgu ng/gastronomie-hotellerie/
( gastronomy and hotels).
One of the inns pictured there is the well known "Bären", dating back to the 1400's, maybe earlier:.
Unfortunately, they say:
Mittwoch und Donnerstag ganzer Tag geschlossen">>
"Quietdays - Wednesday and Thursday, closed the entire day."
There is a huge factory that makes cookies...Kambly. They have tours, etc., (The Kambly Experience) which won't fit your schedule, but, you'll probably find the packages in stores all over Switzerland. Some of their products are available in the small cafe near the Folk Museum ( das Heimatmuseum), which has a cafe, a show ceramics "factory" (die Schautöpferei) and shop, and the museum.
Once again, the website is not in English.
The museum was built in 1783, as an outbuilding, and there are two or three pictures if you click on "Heimatmuseum."
.I mention it because of your interest in local/rural culture. I would not make a trip there specifically to see it, but, it is worth the short walk from the station if you have some time to spare. ( Unlikely, I'd guess, but, you never know.)
This map shows the location, relative to the station: