  Quark light cone momentum distributions in the nucleon are calculated in a
relativistic 3-body approach to the NJL model by using a simple 'static
approximation' for the Faddeev kernel. A method is presented which
automatically satisfies the number and momentum sum rules, even in the
regularized theory. In order to assess the sensitivity to the regularization
scheme, two schemes which can be formulated in terms of light cone variables
are discussed. The effects of the (composite) pion cloud are taken into account
in a convolution approach, and the violation of the Gottfried sum rule is
discussed. After performing the Q^2 evolution, the resulting distributions are
compared to the empirical ones.
