Abstract: The passenger boarding includes a rotunda, a tunnel portion, a cab and a first detection device configured to detect an angle of the rotunda from the first axis around an origin point, and a second detector configured to measure a distance of the tunnel from the origin point in the extensible/contractable direction, provided at the tunnel.

Abstract: A disposing method for an inlet pipe in a muffler that includes an outer shell, an inlet pipe, and a separating plate, the disposing method comprising: a first step of inserting the inlet pipe into the outer shell from an opening at one end of the outer shell; a second step of disposing the inlet pipe by moving the inlet pipe within the outer shell in a direction substantially orthogonal to the direction of insertion of the inlet pipe; and a third step of disposing the separating plate by inserting the separating plate into the outer shell from the opening at the other end of the outer shell.

Abstract: A disposing method for an inlet pipe in a muffler that includes an outer shell, an inlet pipe, and a separating plate, the disposing method comprising: a first step of inserting the inlet pipe into the outer shell from an opening at one end of the outer shell; a second step of disposing the inlet pipe by moving the inlet pipe within the outer shell in a direction substantially orthogonal to the direction of insertion of the inlet pipe; and a third step of disposing the separating plate by inserting the separating plate into the outer shell from the opening at the other end of the outer shell.

Abstract: An exhaust gas purifying device includes a cylindrical shell, a flow channel pipe, and a lid member. The pipe is connected to the shell along a radial direction of the shell. The shell is a member that is formed in a cylindrical shape having a pair of open ends, and in which exhaust gases flow. The shell has at least one shell-side fitting groove that is formed at one of the ends, and in which the pipe is fittable. The lid member is a member that closes the one of the pair of ends of the shell, and has at least one lid-side fitting groove that is formed at a position facing the at least one shell-side fitting groove, and in which the pipe is fittable. The at least one shell-side fitting groove and the at least one lid-side fitting groove fit the pipe therein by holding the pipe therebetween.

Abstract: The passenger boarding bridge includes a first tunnel including a first fixed passage on which a passenger walks; and a second tunnel including a second fixed passage on which the passenger walks, the first tunnel being inserted into the second tunnel from one end side of the second tunnel, the second tunnel having another end side connected to a cab, the second fixed passage being fixed to the another end side. The second tunnel includes a movable passage including multiple plate floor members in a chain manner, the movable passage having one end fixed to the second fixed passage of the second tunnel in a pivotable manner. Accordingly, a passenger boarding bridge in which a passage level difference is eliminated at a joint part between an inner tunnel and an outer tunnel can be realized.

Abstract: The passenger boarding bridge includes a first tunnel including a first fixed passage on which a passenger walks; and a second tunnel including a second fixed passage on which the passenger walks, the first tunnel being inserted into the second tunnel from one end side of the second tunnel, the second tunnel having another end side connected to a cab, the second fixed passage being fixed to the another end side. The second tunnel includes a movable passage including multiple plate floor members in a chain manner, the movable passage having one end fixed to the second fixed passage of the second tunnel in a pivotable manner. Accordingly, a passenger boarding bridge in which a passage level difference is eliminated at a joint part between an inner tunnel and an outer tunnel can be realized.

Abstract: An exhaust valve structure includes: an inner cylindrical portion that forms an introducing passage of exhaust gas and that has a stay member; a valve element that closes or opens the introducing passage; and a wire mesh that is fixed to the stay member and that contacts the valve element when the introducing passage is closed. The wire mesh is formed in a shape such that a diameter of the wire mesh gradually increases toward a downstream side of the introducing passage and a load exerted on the stay member when the valve element contacts the wire mesh is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases.

Abstract: An exhaust gas purifying device includes a cylindrical shell, a flow channel pipe, and a lid member. The pipe is connected to the shell along a radial direction of the shell. The shell is a member that is formed in a cylindrical shape having a pair of open ends, and in which exhaust gases flow. The shell has at least one shell-side fitting groove that is formed at one of the ends, and in which the pipe is fittable. The lid member is a member that closes the one of the pair of ends of the shell, and has at least one lid-side fitting groove that is formed at a position facing the at least one shell-side fitting groove, and in which the pipe is fittable. The at least one shell-side fitting groove and the at least one lid-side fitting groove fit the pipe therein by holding the pipe therebetween.

Abstract: An exhaust valve structure includes: an inner cylindrical portion that forms an introducing passage of exhaust gas and that has a stay member; a valve element that closes or opens the introducing passage; and a wire mesh that is fixed to the stay member and that contacts the valve element when the introducing passage is closed. The wire mesh is formed in a shape such that a diameter of the wire mesh gradually increases toward a downstream side of the introducing passage and a load exerted on the stay member when the valve element contacts the wire mesh is distributed in a diameter-increasing direction in which the diameter of the wire mesh increases.

Abstract: There is provided a reflow soldering apparatus for soldering electronic parts to a circuit substrate by blowing various inert hot gases of a desired density and temperature. A device for detecting whether or not a processing object is being conveyed into the apparatus is provided, so that the amount of inert gas to be supplied and the gas blowing speed are decreased when no processing object is present inside the apparatus. As a result, the amount of gas which flows out is made small, and a decrease in the temperature of the apparatus can be prevented. When the processing object is conveyed into the apparatus, the amount of supplied gas is increased so as to obtain a sufficient gas density. Thus, it is possible to prevent solder from being oxidized, and satisfactory solderability can be obtained.