Kernrechtsfrage
Whether the conditions for an invalidity pension were sufficiently clarified, especially the one-year waiting period and work capacity in the insured's previous occupation.
Extrahierter Entscheid
The record did not conclusively establish the development of work capacity; the waiting period and possible pension entitlement had to be re-examined.
Extrahierte Begründung
The lower court wrongly relied on revision concepts. For initial pension entitlement, Art. 28 Abs. 1 lit. b and c IVG require examination of whether the insured was at least 40% unable to work for one year without significant interruption and then at least 40% invalid. The medical file suggested that the insured's ability in the former occupation was severely and continuously reduced, but a multidisciplinary assessment was still necessary.