JPH0422399Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bell striking device for a clock or the like.

[Prior Art] Conventionally, the configuration of a bell striking device was usually one in which one striking ball was provided on one rocking plate, and the ring was struck by the rocking of this rocking plate. . In addition, in a device that can change the sound quality of the striking sound, two striking balls made of different materials are placed back to back on both sides of the rocking plate, and the center of swing of the rocking board is movable to change the sound quality. It was hot.

[Problems to be Solved] However, with both configurations, the bell is struck once for each rotation of the drive motor, and the sound volume is limited, and the ringing sound is simple. The latter allows you to change the sound quality, but not the volume.
It was a monotonous chiming sound of the selected sound quality.

Therefore, an object of the present invention is to provide a bell-striking device that has a large volume, is efficient, and can produce complex bell-striking sounds.

[Means for Solving the Problems] The present invention is characterized by comprising a phosphor and a shaking device for striking the phosphorus, and the shaking device includes a drive motor having a rotating shaft parallel to the central axis of the phosphorus. , a support plate installed in the recess of the phosphor, and a support shaft spaced a certain distance from the rotating shaft of the drive motor; an eccentric cam that fits on the rotating shaft of the drive motor and engages with the rocking plate to drive the rocking plate in reciprocating motion; A pair of extension parts are formed to extend, an elastic arm is integrally bent in a right angle direction from each end of the extension part and extends in the direction of the eccentric cam, and a phosphor is attached to the tip of each of the elastic arms. It consists of an inner surface and a facing ball that is fixed to the ball.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIGS. 1 and 3, a drive motor 2 is fixed to the lower surface of one end of the support plate 1, and the rotation shaft 3 of this drive motor is directed upward (to the left in FIG. 3) from the support plate. A cylindrical eccentric cam 4 is fixed to this rotating shaft.

A support column 5 is erected at the center of the support plate 1, and the upper end of this support column has a central axis parallel to the rotation axis 3 of the drive motor. The center portion of the lower end opening of the ring 6 is supported. The ring 6 is formed in a size that allows the support plate 1 and a swing plate, which will be described later, to be accommodated in the recess. Furthermore, in FIG. 1, the support plate 1 has legs 7, 8 for attachment to a frame (not shown).
is integrally formed facing downward, and screw holes 7a, 7b, 8a, 8b for mounting are opened in this, and as shown in the second figure, this support plate is also provided with screw holes for mounting to the frame. The screw holes 1a and 1b are provided.

Next, the configuration of the punching device for hitting the phosphorus 6 will be explained.

2 and 3, a support shaft 9 is implanted at the lower end of the support plate 1, and the lower end of a rocking plate 10 is swingably attached to this support shaft. The moving plate 10 is supported parallel to the support plate 1. As shown in FIG.
1 and 11 extend, and an elastic arm 1 is attached to this extension part.
6 and 17 are integrally bent in the right angle direction and extend in the direction of the eccentric cam 4. At the tip of this elastic arm, a hitting ball 18 is provided, facing the inner surface of the ring 6.
19 is fixed. Further, the upper end of the swing plate 10 faces the drive motor 2.

At the upper end of the swing plate 10 (drive motor 2 side),
A notch 12 is provided, and rising portions 13 and 14 are formed on both sides of this notch. An eccentric cam 4 located at a certain distance from the support shaft 9 is fitted between the rising portions 13 and 14.
An opening 15 through which the support column 5 passes is formed in the center of the rocking plate 10, and the inner diameter of this opening is set to such an extent that the rocking plate does not come into contact with the support column when the rocking plate swings. It has a wide opening. According to the present invention, the elastic arms 16,
17 extends in the four directions of the eccentric cam.

Therefore, the longitudinal positions of the elastic arms 16 and 17 almost coincide with the line segment connecting the eccentric cam 4 and the support shaft 9, and since they do not protrude from the swing plate 10 in the longitudinal direction, they are positioned downwardly within the planar shape of the ring 6. The bell striking device can be accommodated, making it possible to downsize the bell striking device.

Next, the configuration of the spurious vibration regulating means of the rocking plate 10 will be explained.

1 and 2, on the upper surface of the support plate 1, a presser plate spring 20 for regulating spurious vibrations of the rocking plate 10 is fixed at its center with a pin 21. There are presser arms 2 on both ends of the spring.
0a and 20b are integrally formed, and this presser arm is in elastic contact with a part of the lower surface of the extending portions 11 and 11 of the rocking plate 10. Further, the presser plate spring 20 is provided with a projection 22 for preventing rotation, and is engaged with a locking hole 23 of the support plate 1.

In order to swing the rocking plate 10 stably and smoothly around the support shaft 9, a hollow cylindrical sleeve 24 is used.
is fixed to the center of the swing of this swing plate. The sleeve 24 is rotatably fitted onto the support shaft 9, and an E-ring 26 is attached to the protruding end of the shaft with a mylar ring 25 interposed therebetween, thereby making the rocking plate 10 irremovable. keeping. Also sleeve 2
A cylindrical recess 27 is formed at the lower end of the sleeve 4, and a coil spring 28 is fitted into the recess 27 to apply a spring force upwardly to the sleeve at all times, thereby preventing the rocking plate 10 from wobbling.

Next, the operation of the shimoku device will be explained.

As the drive motor 2 rotates, the eccentric cam 4 fixed to the motor rotation shaft 3 rotates, and the swing plate 10 starts to swing around the support shaft 9, causing the balls 18 and 19 to alternately move the ring 6. Toll the bell. In this case, the ring 6 is struck twice by the balls 18 and 19 every time the rotating shaft 3 of the drive motor 2 rotates once, so the number of times the bell is struck increases, and one of the balls 18 and 19 strikes the ring twice.
After striking the bell with the ring, when striking the bell with another striking ball 19, energy due to the repulsive force of the elastic arm 16 is also added, so the striking sound becomes louder compared to the power consumption, improving efficiency. Furthermore, by changing the masses of the balls 18 and 19, or by changing the length, width, and thickness of the elastic arms 16 and 17, the timing at which the ring 6 is struck can be adjusted. Furthermore, different sound quality can be obtained by various combinations of these. Furthermore, by changing the materials of the striking balls 18 and 19, the bells can be struck with different tones alternately.

When a force is applied to the rocking plate 10 in the vertical direction in FIG.
Vertical vibrations may occur near both ends of the ball 1, but when such vertical vibrations, or spurious vibrations, are transmitted to the balls 18 and 19 via the elastic arms 16 and 17, they cause vertical vibrations. , the alarm sound becomes unstable. That is, hitting balls 18, 19
By hitting the inner surface of the phosphor 6 vertically, the alarm sound is stable and clear, but when vertical vibration is added to this, the inner surface of the phosphor is impulsed, and a frictional sound is added. At the same time, the position at which the bell is struck becomes uncertain, which causes the alarm sound to become unstable and the sound to be poor. Naturally, spurious vibrations also increase current consumption. However, according to the configuration of this embodiment, this spurious vibration is caused by the presser arms 20a and 20b of the presser plate spring 20.
is suppressed by being in elastic contact with the vicinity of both sides of the extending portions 11, 11.

[Effects] According to the present invention, the elastic arms extend in the direction of the eccentric cam from the ends of the pair of extension parts near the support shaft.

Therefore, the longitudinal position of the elastic arm almost coincides with the line segment connecting the eccentric cam and the support shaft, and since it does not protrude beyond the rocking plate in the longitudinal direction, the shimok device fits in the lower part of the planar shape of one ring. It is possible to downsize the bell striking device. Further, according to the present invention, a loud striking sound can be obtained and the efficiency is good. Furthermore, since the striking sounds can be combined in various ways, a wide variety of striking sounds can be obtained.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a plan view, and FIG. 3 is a view from FIG.
FIG. DESCRIPTION OF SYMBOLS 1... Support plate, 2... Drive motor, 4... Eccentric cam, 6... Lin, 9... Support shaft, 10... Rocking plate, 11... Extension part, 16, 17... Elastic arm, 18, 19... Hit the ball.

Claims (1)

[Claims for Utility Model Registration] Consisting of a ring and a shaking device for striking the ring, the shaking device includes a drive motor having a rotating shaft parallel to the central axis of the ring, and a drive motor installed in a recess of the ring. a support shaft erected on a support plate and spaced a certain distance from the rotating shaft of the drive motor; and a oscillator supported in parallel with the support plate and swingable on the support shaft within the recess of the ring. a moving plate; an eccentric cam that fits onto the rotating shaft of the drive motor and engages with the rocking plate to drive the rocking plate back and forth; a pair of extension parts formed to extend from the extension part; an elastic arm integrally bent in a right angle direction from each end of the extension part and extending in the direction of the eccentric cam; and the elastic arm A striking device comprising: a striking ball fixed to the tip of each of the rings facing the inner surface of the ring;