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: An object of the present invention is to provide an apparatus and a method by which quantities of water vapor passing through a measured object can be measured with high sensitivity and in a short time period. The apparatus and method measure water vapor permeability of the measured object based on a dew point temperature in a second space measured after introducing water vapor into a first space, wherein the first space and the second space are parted from each other by the measured object, and wherein the first space is maintained at a predetermined temperature and a predetermined humidity under atmospheric pressure, and the second space is maintained in a dry state with a dew point temperature of ?70° C. or less under atmospheric pressure.

Abstract: The present invention provides a method for laminating a decorative metal film on a resin base material with excellent adhesion to the resin base material and with a sufficient gloss imparted to the decorative metal film, and a resin base material having a decorative metal film. The method laminates a polymeric planarizing film on the resin base material using a vapor deposition polymerization method, and then laminates the decorative metal film on the planarizing film.

Abstract: It is an object of the invention to prepare a polyurea film with excellent transparency, light resistance and mass-scale productivity on a substrate of a resin-molded article by a method of vacuum deposition polymerization. A polyurea film obtained by vacuum deposition polymerization of an aromatic alkyl-, alicyclic- or aliphatic diisocyanate monomer and an aromatic alkyl-, alicyclic- or aliphatic diamine monomer, where the diisocyanate monomer and the diamine monomer are selected from diisocyanate monomers and diamine monomers in a relation such that the difference in the activation energy required for the elimination from a substrate between these monomers is 10 kJ or less.

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.