This invention is directed to vanilloid receptor VR1 ligands. Ends of inside yokes are coupled by means of auxiliary yokes, outside yokes are configured such that inner peripheral surfaces of magnets are of different magnetic poles, a closed magnetic path is formed by the inside yokes, auxiliary yokes, outside yokes, and magnets. The front implement valve section is configured to receive also pressure oil from the center oil passage of the swiveling valve section and the parallel oil passage.