JPH02142887U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of the music box, FIG. 2 is a cross-sectional view of the music box, FIG. 3 is a perspective view of the arm set in the case, and FIG. 4 is a cross-sectional view of a conventional example. 1...Music box body, 2...Output shaft, 21...Square shaft part, 3...Arm, 31...Square hole, 4...Case, 5...
Positioning means, 6... Locking means, 8... Magnet, 9... Model.

Claims (1)

[Claims for Utility Model Registration] Rotary output shaft 2 connected to music box body 1
An arm 3 is connected to the arm 3, and a magnet 8 is disposed on the arm 3 so as to be slidable in the longitudinal direction of the arm 3.The music box main body 1 has a top plate 41 and a cylindrical wall 45 extending downward around the outer periphery of the top plate 41. The top plate 41 of the case 4 is covered with an endless curved guide rail 42 on which the magnet 8 is slidably fitted. A model 9 that can be attracted to the magnet 8 is slidably arranged, and the rotation of the arm 3 causes the magnet 8 to slide along the guide rail 42, and the attraction of the magnet 8 causes the model 9 to become the same as the magnet 8. In a model drive mechanism for a music box that moves on a trajectory, a square shaft portion 21 is formed on the output shaft 2, a square hole 31 is opened at the base end of the arm 3, and the square hole 31 is connected to the output shaft 2. A support plate 24 that supports the arm 3 is attached to the case 4 in parallel with the top plate 41 at a position below the arm 3, and the output shaft 2 is attached to the support plate 24. A through-hole 25 is formed in which the hole 25 is fitted with ample room, a recess 32 is formed in either the center of the case 4 or the base end of the arm 3, and a square hole 31 of the arm 3 is formed in the other by fitting into the recess 32. A music box model drive device in which a convex portion 44 is formed to position the music box at the center of the case 4. Rotary output shaft 2 connected to music box body 1
An arm 3 is connected to the arm 3, and a magnet 8 is disposed on the arm 3 so as to be slidable in the longitudinal direction of the arm 3.The music box main body 1 has a top plate 41 and a cylindrical wall 45 extending downward around the outer periphery of the top plate 41. The top plate 41 of the case 4 is covered with an endless curved guide rail 42 on which the magnet 8 is slidably fitted. A model 9 that can be attracted to the magnet 8 is slidably arranged, and the rotation of the arm 3 causes the magnet 8 to slide along the guide rail 42, and the attraction of the magnet 8 causes the model 9 to become the same as the magnet 8. In a model drive mechanism for a music box that moves on a trajectory, a square shaft portion 21 is formed on the output shaft 2, a square hole 31 is opened at the base end of the arm 3, and the square hole 31 is connected to the output shaft 2. A support plate 24 that supports the arm 3 is attached to the case 4 in parallel with the top plate 41 at a position below the arm 3, and the output shaft 2 is attached to the support plate 24. A through hole 25 is formed to fit into the arm 3 with ample room, and a peripheral wall 33 is formed at the base end of the arm 3 to fit into the through hole 25 of the support plate 24 and position the square hole 31 of the arm 3 at the center of the case 4. A model driving device for a music box.