Abstract: A rim material having a non-uniform thickness, a rim manufactured from the rim material, and a method for manufacturing the rim from the rim material. The rim material includes a first material portion which forms an axially curved portion of the rim after the rim material is formed to the rim and a second material portion which forms an intermediate portion between adjacent axially curved portions after the rim material is formed to the rim. The first material portion has a thick parallel-surface portion including opposite surfaces parallel to each other. The parallel-surface portion has a width greater than a maximum amount of an axial dislocation of the parallel-surface portion expected to occur when the parallel-surface portion is formed to a corresponding curved portion. The second material portion has a thickness varying portion. The thickness varying portion includes a surface having a configuration defined by a line including a straight line and/or a slightly curved line.

Abstract: A rim material having a non-uniform thickness, a rim manufactured from the rim material, and a method for manufacturing the rim from the rim material. The rim material includes a first material portion which forms an axially curved portion of the rim after the rim material is formed to the rim and a second material portion which forms an intermediate portion between adjacent axially curved portions after the rim material is formed to the rim. The first material portion has a thick parallel-surface portion including opposite surfaces parallel to each other. The parallel-surface portion has a width greater than a maximum amount of an axial dislocation of the parallel-surface portion expected to occur when the parallel-surface portion is formed to a corresponding curved portion. The second material portion has a thickness varying portion. The thickness varying portion includes a surface having a configuration defined by a line including a straight line and/or a slightly curved line.

Abstract: An inspection device for inspecting a bunch yarn winding wound on a take up tube of a package. A black light is provided for irradiating the bunch yarn winding with light having a wavelength substantially in the ultra violet range, and a CCD camera is provided for sensing and inspecting the irradiated bunch yarn winding.

Abstract: A package inspection apparatus comprising a tray having a peg inclined for mounting a package thereon, a conveyor having a pair of chains for carrying the tray, an inspection box mounted on the conveyor, a light source and a camera mounted in the inspection box for inspecting for bunch winding and bulge winding of the package, and a package weight measuring instrument vertically movably mounted between the chains.

Abstract: A package inspecting apparatus comprising a yarn end processing section for exerting suction air on the surfaces of packages while rotating trays on a running passage for trays on which packages are fitted, a package inspecting section in which a plurality of optical type package winding-form inspecting devices are received in a dark room, and a weighing section provided with a weight measuring unit, said sections being arranged in series in said order and integrated.

Abstract: A package inspecting apparatus including a yarn end processing section for exerting suction air on the surfaces of packages while rotating trays on a running passage for trays on which packages are fitted, a package inspecting section in which a plurality of optical type package winding-form inspection devices are received in a dark room, and a weighing section provided with a weight measuring unit, the sections being arranged in series in the above order are integrated.

Abstract: A ray having an optical axis approximately parallel with a surface of a yarn layer is irradiated against a surface of a package, and a light receiving element for receiving light reflected on an abnormal yarn on the surface of the yarn layer is provided at a position at which the reflected light is maximum to detect an abnormal yarn.

Abstract: A winding-form inspecting apparatus for wound-yarn packages comprising a first projecting portion for irradiating light against the surface of a yarn layer of a package substantially at right angles thereto, a first light receiving portion for receiving a reflecting light caused by the first projecting portion, a second projecting portion for irradiating light against the surface of the yarn layer in an oblique direction, and a second light receiving portion for receiving a reflecting light caused by the second projecting portion.

Abstract: A yarn eveness detector in a textile machine generates an analog signal in response to yarn uneveness. The analog signal is digitized and subjected to real time processing in a computer for analysis of both cyclic and non-cyclic yarn irregularity. A signal may be generated in response to irregularities exceeding a certain value.