JPS632075Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a magnet-operated toy in which a rotating arm horizontally rotates alternately clockwise and counterclockwise due to magnetic repulsion between an electromagnet and a permanent magnet. The swivel arm can be rotated alternately in clockwise and counterclockwise directions by energization by energization by operating a switch, and the permanent magnet enters the bobbin of the cylindrical electromagnet at the swiveling end of the swivel arm. , is attracted to the washer fixed inside the bobbin, and prevents the revolving arm from bouncing back at the swinging end (if there is the above-mentioned bouncing at the arm swinging end, the swinging arm will be reversed to the position of the electromagnet). To provide a highly interesting magnet-operated toy with a novel structure that does not exist heretofore, in which the rotation is stopped midway and the magnet cannot be operated.

That is, the magnet-operated toy of this invention has an arm support having a rotating shaft at the upper end and a battery storage case at an appropriate position, and a bobbin in the arm rotation direction at an upper lateral position of the arm support. A washer for magnet attraction is fixed inside a coil-wound bobbin that is attached via a support arm so as to be open, and is electrically connected to the battery stored in the case and a normally open switch, so that when the switch is closed, both ends are N and S. A cylindrical electromagnet that is excited by a magnetic pole, a swing arm with a balancer whose middle part is supported horizontally on a rotating shaft on the upper part of the support, and a one-side arm part corresponding to the electromagnet mounting position of the swing arm. a rod-shaped permanent magnet that is inserted into the cylindrical electromagnet held in position via a vertical arm, is attracted to the washer, and is magnetically repelled when the electromagnet is energized; The swing arm is characterized in that it swings alternately in a clockwise direction and a counterclockwise direction due to magnetic repulsion with a permanent magnet caused by energization and excitation.

An embodiment of this invention will be described below with reference to the drawings. In the drawing, reference numeral 1 denotes an arm support, which includes a stand 2 whose plane is cross-shaped, a pole 3 vertically erected on this stand 2, and a pole 3 that stands vertically on this stand 2. It is composed of a battery case 4 that is vertically attached to the upper end of the battery case 4, and a rotating support shaft 5 is protruded from the upper end of the battery case 4.
An arm attachment portion 6 is provided at an upper lateral position of the battery case 4. Note that the battery case 4 may be provided on the base 2, and in this case, the rotation support shaft 5 is provided on the upper end of the pole 3.

Reference numeral 7 denotes a cylindrical electromagnet in which a coil 9 is wound around the outer periphery of the bobbin 8, and a washer 10 for magnetic attraction is fitted at the center position inside the bobbin 8 as shown in FIG. Arm attachment part 6 of case 4)
The bobbin is attached via a support arm 11 so that the bobbin opens in the arm rotation direction. The electromagnet 7 is electrically connected to the battery case 12 and a normally open switch 13 attached to the base 2 through an enameled wire 14, as shown in FIG. At the same time, both ends are energized and excited by the N and S magnetic poles. Reference numeral 15 denotes a swing arm with a balancer 17 in which an intermediate shaft bearing part 16 is supported horizontally on the one-rotation support shaft 5 of the arm support. A permanent magnet 18, which is inserted into the cylindrical electromagnet 7 and attracted to the washer 10 as shown by the imaginary line in FIG. 2, is attached via a hanging arm 19. The permanent magnet 18 is formed of a bar-shaped magnet having N and S magnetic poles at both ends that repel the N and S magnetic poles of the electromagnet 7, and magnets are inserted into the cylindrical electromagnet 7 alternately from clockwise and counterclockwise directions. so that it can be reversed and adsorbed to the washer 10,
It is held by the lower end holder portion 19a of the hanging arm 19 with both ends protruding as shown in FIG.

Reference numerals 20 and 21 shown in FIG. 1 are toy molded bodies that are movably fitted into both arm portions of the swing arm 15.

When the permanent magnet 18 of the swing arm 15 is inserted into the cylindrical electromagnet 7 and is attracted to the washer 10 and the arm swing is stopped, when the switch 13 is pushed by hand, the switch 13 closes. The electromagnet 7 is energized and excited, and the repulsion of this magnet causes the permanent magnet 18 to move toward the washer 10.
The rotating arm 15 receives rotational force due to magnetic repulsion and rotates in the counterclockwise direction in FIG. 1 while maintaining a swinging balance. At the turning end of the turning arm 15 in the counterclockwise direction, the S pole side of the permanent magnet 18 is connected to the S pole side of the cylindrical electromagnet 7.
The electromagnet 7 enters the pole side (at this time, the electromagnet 7 is demagnetized by releasing the switch operation), and is attracted to the washer 10 inside the bobbin so as not to bounce back due to the rotation collision force. Here, when the switch 13 is pushed again to energize the electromagnet 7, the swing arm 15 rotates in the clockwise direction due to the magnetic repulsion between the electromagnet 7 and the permanent magnet 18, and at the end of the rotation, The N pole side of the permanent magnet 18 is inserted into the N pole side of the electromagnet 7, and the washer 1 inside the bobbin is inserted in the same manner as described above.
Becomes attracted to 0.

Thereafter, in the same manner, the rotating arm 15 can be reversely rotated alternately in the counterclockwise direction and the clockwise direction.

Since the magnet-operated toy of this invention is as described above, the rotating arm can be rotated alternately in the clockwise direction and the counterclockwise direction by energizing the electromagnet by switching the electromagnet. At the end of the swing, the permanent magnet enters the bobbin of the cylindrical electromagnet and is attracted to the washer fixed inside the bobbin, so it is possible to prevent the swing arm from bouncing back at the end of the swing. Therefore, it is possible to provide a highly interesting magnet-operated toy with a novel structure that has not existed in the past.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a magnet-operated toy according to an embodiment of the invention, FIG. 2 is a cross-sectional view of the electromagnet mounting portion, and FIG. 3 is an electric circuit diagram of the magnet-operated toy. DESCRIPTION OF SYMBOLS 1... Arm support, 2... Stand, 3... Pole, 4... Battery case, 5... Rotating shaft, 6...
Arm attachment part, 7...Cylindrical electromagnet, 8...Bobbin, 9
... Coil, 10 ... Washer for magnet attraction, 1
1... Support arm, 12... Case storage battery, 13...
...Never-open switch, 14... Enamel wire, 15...
Swivel arm, 16... Intermediate bearing part, 17... Balancer, 18... Permanent magnet, 19... Suspended arm, 2
0,21...Toy shaped object.

Claims (1)

[Scope of utility model registration request] An arm support body having a rotation shaft at the upper end and a battery storage case section provided at an appropriate position, and a support arm so that a bobbin opens in the arm rotation direction at an upper lateral position of the arm support body. A washer for magnet attraction is fixed inside the attached coil-wound bobbin, and is electrically connected to the battery stored in the case and the normally open switch, so that both ends are N when the switch is closed.
A cylindrical electromagnet excited by the S magnetic pole, a swing arm with a balancer whose middle part is supported horizontally on a rotation shaft at the upper end of the support, and one side of the swing arm corresponding to the electromagnet installation position. a rod-shaped permanent magnet that is inserted into the cylindrical electromagnet held at the arm portion position via a vertical arm, is attracted to the washer, and is magnetically repelled when the electromagnet is energized and excited; A magnet-operated toy, characterized in that the rotating arm rotates alternately in a clockwise direction and a counterclockwise direction due to magnetic repulsion with a permanent magnet caused by energization of an electromagnet.