Abstract: A jib crane which can prevent an unexpected movement of a burden and can sufficiently ensure the safety of a burden handling work is disclosed. The jib crane has hoisting wire ropes for lifting and landing a hook, derricking wire ropes for derricking operation of a jib, and a conversion device for fixing tips of the wire ropes to a revolving frame of a revolving table. The conversion device has a V-shaped link pivotally supported on a bearing bracket via a pivot pin. The tips of the wire ropes are connected to paired link arms of the V-shaped link.

Abstract: A vehicle parking apparatus for parking a vehicle comprises a main structure having a plurality of storage racks capable of storing vehicles lined up in a vertical direction, a lift cage capable of being mounted with a vehicle, a coupling mechanism having a second coupling member, a first coupling member capable of making contact with the second coupling member from a lower side and capable of relative movement in a downward direction from a position of making contact with the second coupling member, and an urging mechanism causing a prescribed urging force to act in a downward direction on the first coupling member; a wire capable of suspending the lift cage in an elevator shaft H next to the storage racks via the coupling mechanism, and winding apparatus capable of winding the wire up and down. The first coupling member is fixed to one end of the wire, and the second coupling member is fixed to the lift cage.

Abstract: A jib crane is provided which can prevent an unexpected movement of a burden and can sufficiently ensure the safety of a burden handling work. The jib crane has hoisting wire ropes 22 for lifting up and down of a hook 34, derricking wire ropes 24 for derricking operation of a jib 14 and a conversion device 38 for fixing tips of the wire ropes 22 and 24 to a revolving frame 58 of a revolving table. The conversion device 38 has a V-shaped link 62 pivotally supported on a bearing bracket 56 via a pivot pin 60. The tips of the wire ropes 22 and 24 are connected to paired link arms 62a and 62b of the link 62.

Abstract: A vehicle parking apparatus for parking a vehicle comprises a main structure having a plurality of storage racks capable of storing vehicles lined up in a vertical direction, a lift cage capable of being mounted with a vehicle, a coupling mechanism having a second coupling member, a first coupling member capable of making contact with the second coupling member from a lower side and capable of relative movement in a downward direction from a position of making contact with the second coupling member, and an urging mechanism causing a prescribed urging force to act in a downward direction on the first coupling member; a wire capable of suspending the lift cage in an elevator shaft H next to the storage racks via the coupling mechanism, and winding apparatus capable of winding the wire up and down. The first coupling member is fixed to one end of the wire, and the second coupling member is fixed to the lift cage.

Abstract: A stretchable conveyor belt having a plurality of first cuts which extend in a widthwise direction of the belt, which extend from one of opposite surfaces of the belt toward the other surface thereof and do not reach said other surface, and which are provided at a regular interval of distance in a lengthwise direction of the belt, and/or a plurality of second cuts which extend in the widthwise direction of the belt, which extend from said other surface of the belt toward said one surface thereof and do not reach said one surface, and which are provided at a regular interval of distance in the lengthwise direction of the belt, the first cuts and/or the second cuts providing a stretchability of the belt.

Abstract: A variable-speed moving walkway includes an array of support rollers (10) provided with a plurality of horizontal drive rollers (11), having upper surfaces arranged to be generally flush with each other and rotated about each axial center, and an endless belt (16), supported by the array of support rollers, for moving continuously by their rotation. An array of accelerating rollers (12), an array of high-speed rollers (13), and an array of decelerating rollers (14) constitute the array of support rollers, and allow rotational speeds of the horizontal drive rollers to gradually increase from a low speed, to be maintained at a constant high speed, and to gradually decrease to a low speed, respectively. In addition, the endless belt (16) readily extends or retracts in the direction of movement and barely extendable or retractable in the widthwise direction. The belt (16) extends and retracts in the direction of movement in response to the rotational speed of the horizontal drive rollers.

Abstract: An escalator system includes an endless conveyor belt having an outer flexible layer adapted to receive an object to be conveyed on a surface thereof, an intermediate flexible layer provided with internal reinforcement members extending transversely relative to the belt and arranged spaced in a moving direction of the belt, the intermediate flexible layer having a surface held in tight contact with another surface of the outer flexible layer, and an inner flexible layer provided with internal longitudinal members extending in the moving direction of the belt. The inner flexible layer has one surface held in tight contact with a transversely central part of the other surface of the intermediate flexible layer, a pair of pulleys arranged respectively at a conveyance starting point and a conveyance terminating point, the conveyor belt being wound around the pulleys.