Abstract: A rolling bearing is provided which includes a cage including two annular members each including (i) pocket walls, and (ii) connection plates circumferentially alternating with the pocket walls, and each coupling together corresponding ones of the pocket walls, the two annular members being axially opposed to each other such that pockets are circumferentially defined by the pocket walls of the annular members; an inner ring having an inner ring raceway surface on an outer peripheral surface of the inner ring; an outer ring having an outer ring raceway surface on an inner peripheral surface of the outer ring; and balls being retained in the respective pockets, which are defined in the cage, wherein spherical portions are formed on the respective pocket walls of the two annular members, the spherical portions being out of contact with the balls in a state where the balls are in abutment with circumferential ends of the pockets.

Abstract: A rolling bearing includes: inner and outer rings; a plurality of balls; a retainer configured to retain the plurality of balls; and a seal member attached to the outer ring and configured to close a bearing space between the inner ring and the outer ring. The seal member is a contact seal including a lip configured to come into contact with the seal groove. The seal groove has an outer groove wall surface which is an inclined surface which is inclined toward an outer diametric side as the inclined surface extends outward in an axial direction. The lip has a tip end part having a round shape so that the tip end part contacts the outer groove wall surface of the seal groove at from 80 to 100°. The outer groove wall surface has an inclination angle of from 55 to 65° with respect to the axial direction.

Abstract: A windmill includes a shaft, a blade, and a supporting member. The windmill is rotatable about a center axis of the shaft. The blade has a blade main body portion extending along an axial direction that is a direction of the center axis. When viewed in a cross sectional view orthogonal to the axial direction, the blade main body portion includes a front edge and a rear edge, the front edge being an end on a front side in a rotation direction of the windmill, the rear edge being an end on a rear side in the rotation direction. The supporting member extends along a radial direction orthogonal to the axis direction and passing through the center axis, so as to connect the shaft and the blade main body portion to each other.

Abstract: A windmill includes a shaft, a blade, and a supporting member. The windmill is rotatable about a center axis of the shaft. The blade has a blade main body portion extending along an axial direction that is a direction of the center axis. When viewed in a cross sectional view orthogonal to the axial direction, the blade main body portion includes a front edge and a rear edge, the front edge being an end on a front side in a rotation direction of the windmill, the rear edge being an end on a rear side in the rotation direction. The supporting member extends along a radial direction orthogonal to the axis direction and passing through the center axis, so as to connect the shaft and the blade main body portion to each other.

Abstract: A vertical axis wind turbine (2) includes a vertical rotation shaft (3a) and a plurality of vertical blades (5) arranged around the rotation shaft and attached to the rotation shaft through an arm (6a, 6b). Each of the blades (5) includes a blade main part (5a) and blade-tip inclined parts (5b) extending from upper and lower ends of the blade main part (5a) toward the rotation shaft (3a). Each of the blade-tip inclined parts (5b) has a smaller thickness than a thickness of the blade main part (5a). A wind power generating device (1) includes a vertical axis wind turbine (2) having the above configuration and a generator (3).

Abstract: A vertical axis wind turbine (2) includes a vertical rotation shaft (3a) and a plurality of vertical blades (5) arranged around the rotation shaft and attached to the rotation shaft through an arm (6a, 6b). Each of the blades (5) includes a blade main part (5a) and blade-tip inclined parts (5b) extending from upper and lower ends of the blade main part (5a) toward the rotation shaft (3a). Each of the blade-tip inclined parts (5b) has a smaller thickness than a thickness of the blade main part (5a). A wind power generating device (1) includes a vertical axis wind turbine (2) having the above configuration and a generator (3).

Abstract: Provided is a hybrid street light in which an effect of facilitating use, by people, of a space under illumination is obtained. The hybrid street light includes: a support column; a power generation device main unit including, at an upper portion of the support column, a vertical-axis wind turbine power generation device and a solar photovoltaic power generation device; a lighting device installed around the support column and powered by either or both of the power generation devices; and a seat attached to the support column. In the daytime, power is generated by the solar photovoltaic power generation device. The wind turbine power generation device generates power by day and night as long as wind is available. Since the seat is attached to the support column, an effect of facilitating use, by people, of a space under illumination is obtained.

Abstract: A continuous form electrophotographic printer includes a paper feeding apparatus and control system to control a level of tension between two paper feeding elements. A detector is responsive to changes in tension between the two elements, and the speed of one of the elements is adjusted in response to a change in tension if a change is recorded. The detector takes the form of a rotatable lever pressing on the continuous paper and responsive to paper tension.

Abstract: An apparatus for inspecting assembled conditions of interior and exterior parts of an automotive vehicle, comprising an inspection table, two supporting bases mounted on the table, a framework supported by the supporting bases, left and right model jigs shaped to correspond to configurations of left and right side-member final assemblies of the vehicle, and bar members for connecting one model jig with the other. When shaping the model jigs, the supporting bases are used as datum references for the shaping and the framework serves as a core in the model jigs.