the base section 21 and is provided upright to form an opening passageway that is generally in the shape of the letter u201c u u201d the support vertical frame 22 is provided with an auxiliary frame 22 a and fixtures 61 are respectively screwed into the upper part and the lower part of the auxiliary frame 22 a the support vertical frame 22 is secured on the wall by adjusting the number of turns to press the fixture 61 against the wall an adjuster 62 that has an internal thread section into which an external thread section 61 a of the fixture 61 is screwed is provided to adjust the thrust amount of the fixture 61 the vertical frame 23 is similarly provided with a fixture 61 and an adjuster 62 via an auxiliary frame 23 a the support vertical frame 22 and the vertical frame 23 can be secured on the walls on either side of the passageway by turning the upper and lower adjusters 62 to adjust the thrust amount of the fixtures 61 note that the frame 20 may be secured and installed by an arbitrary method as long as the frame 20 can be disposed approximately in the shape of the letter u201c u u201d the gate 10 has a configuration in which the ends of an upper crosspiece 11 and a lower crosspiece 12 are connected via a right vertical crosspiece 13 and a left vertical crosspiece in the shape of a frame and a lattice is formed inside the frame using a wire rod note that the gate 10 may have a panel instead of a lattice the end of the upper crosspiece 11 and the end of the lower crosspiece 12 positioned on one side of.