JPS62167894U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing an electric fan oscillating device according to an embodiment of the invention, Fig. 2 is a cross-sectional view of the fan when the pinion shaft is in the first axial position, and Fig. FIG. 4 is a cross-sectional view when the pinion shaft is in the second axial position, and FIG. 4 is a cross-sectional view when the pinion shaft is in the third axial position. In the figure, 8... sun gear, 12... intermediate gear, 13... internal gear, 15... planetary gear, 19... pinion gear, 20... first large diameter section, 21... second large diameter section. Diameter portion, 22...Tapered surface,
25...clutch sleeve, 27...clutch spring, 29...ball. In addition, in the figures, the same reference numerals and symbols indicate the same or equivalent parts.

Amendment August 6, 1981 The brief description of the drawing is amended as follows. In the seventh line of page 20 of the specification, "It is a cross-sectional view of the case." is corrected to "The cross-sectional view of the case, FIG. 5 is an assembled perspective view showing a part of the clutch mechanism."

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pinion shaft whose rotation of an electric motor is rotated by a worm wheel, a sun gear provided in a gear case of a swinging device coaxially with the pinion shaft, and a pinion shaft. It is coaxially supported by the gear case of the swinging device and always meshes with the crank gear, and has an internal gear on the end face of the pinion shaft that can mesh with the pinion gear of the pinion shaft, and always meshes with the sun gear. , an intermediate gear that pivotally supports a planetary gear group that can also mesh with a pinion gear of a pinion shaft; At a second position in the direction, the oscillating device gear is located between the planetary gear group and the internal gear and does not mesh with either of them, and at a third position in the axial direction, it is slidable in the axial direction so as to mesh with the internal gear. The rotation of the pinion shaft, which is pivotally supported on the case, and the worm wheel, which is coaxially supported on the outer circumference of the pinion shaft, is
and a clutch mechanism that transmits power to the pinion shaft in the third position and does not transmit power to the pinion shaft in the second position of the pinion shaft. (2) The clutch mechanism includes a cylindrical clutch sleeve that is integrated with the worm wheel and has ball cages inserted through it at multiple circumferentially symmetrical locations, and a ball receiver located on the outer periphery of the clutch sleeve at a position corresponding to the ball cage. a clutch spring having a substantially semi-cylindrical shape, a steel ball loosely restrained by the outer circumferential surface of the pinion shaft, a ball cage, and a ball receiving portion, and a first position in the pinion shaft axial direction;
a first large diameter portion provided on the outer periphery of the pinion shaft, which faces the clutch sleeve and the clutch spring, has a ball nest at a position corresponding to the ball cage of the clutch sleeve, and has a tapered surface at an axial end; At the third axial position of the shaft, it faces the clutch sleeve and clutch spring, has a ball nest at a position corresponding to the ball cage of the clutch sleeve, and is provided on the outer periphery of the pinion shaft with a tapered surface at the axial end. 2. The electric fan oscillation device according to claim 1, characterized in that the fan oscillation device comprises a second large diameter portion.