[en] We study the $\stackrel{¯<!--\; ??\; -->}{K}$p → YK$\stackrel{¯<!--\; ??\; -->}{K}$π reactions with $\stackrel{¯<!--\; ??\; -->}{K}$ = ${\stackrel{¯<!--\; ??\; -->}{K}}^0$, K${}^{-<!--\; ???\; -->}$ and Y = Σ${}^0$, Σ${}^{+}$, Λ, in the region of K$\stackrel{¯<!--\; ??\; -->}{K}$π invariant masses of 1200−1550 MeV. The strong coupling of the $f_1$(1285) resonance to K${}^{\ast <!--\; ???\; -->}$$\stackrel{¯<!--\; ??\; -->}{K}$ makes the mechanism based on K${}^{\ast <!--\; ???\; -->}$ exchange very efficient to produce this resonance observed in the K$\stackrel{¯<!--\; ??\; -->}{K}$π invariant mass distribution. In addition, in all these reactions one observes an associated peak at 1420 MeV which comes from the K${}^{\ast <!--\; ???\; -->}$$\stackrel{¯<!--\; ??\; -->}{K}$ decay mode of the $f_1$(1285) when the K${}^{\ast <!--\; ???\; -->}$ is placed on shell at higher invariant masses. We call the attention to the possibility that the peaks observed in other reactions where the "$f_1$(1420)" is observed have a similar origin.