JPH0128557Y2 - - 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 feature of the present invention is that the structure of the phosphor striking device is such that a rocking plate is swingably supported around a support shaft, and a swing plate is supported at a certain distance from the support shaft. Eccentric cams are provided that engage with the rocking plate at positions separated by the distance and drive the rocking plate in a reciprocating manner, and extend symmetrically outward from both sides of the rocking plate. The pair of extension parts are provided with elastic arms, and a hitting ball is fixed to the tip of each of the elastic arms facing the ring, and a presser arm is formed on the presser plate spring. However, it comes into elastic contact with a portion of both of the extending portions to regulate spurious vibrations.

[Examples] Examples of the present invention will be described below 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 center portion of a ring 6 having an open bottom end is supported at the upper end of the support column. Furthermore, in Figure 1,
The support plate 1 is integrally formed with legs 7 and 8 facing downward for attachment to a frame (not shown), and has screw holes 7a, 7b, 8a, and 8a for attachment.
8b, and as shown in the second figure, this support plate has screw holes 1 for attaching it to the frame.
a and 1b have been established.

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. As shown in the second figure, a pair of extending parts 11, 11 extend symmetrically outward from both sides of the rocking plate 10, and elastic arms 16, 17 are integrally attached to these extending parts. Balls 18 and 19 are fixed to the tip of the elastic arm facing the ring 6.

At the other 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.

Next, the configuration of the spurious vibration regulating means of the rocking plate 10 will be explained. In Figures 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, and at both ends of the presser plate spring are presser arms 20a, 20b is integrally formed, and this presser arm is connected to the extending portion 11 of the rocking plate 10,
11 is in elastic contact with a part of the lower surface. Further, the presser plate spring 20 is provided with a protrusion 22 for preventing rotation.
It engages with the 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 provided.
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.

When the drive motor 2 starts rotating, 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 move toward the ring 6. Alternately ring 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 bell strikes increases and the ring is struck by one of the balls 18. Later, 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. Also hitting balls 18,
19, or by changing the mass of the elastic arm 16,
By changing the length, width, and thickness of ring 17, the timing at which 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.

In addition, means for controlling spurious vibrations that may occur when the bell is struck will be explained.

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 ring 6 vertically, the alarm sound is stable and clear, but when vertical vibration is added to this, the ring slides on the inner surface of the ring, causing a frictional sound. 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.

Therefore, in the present invention, a presser plate spring 20 is provided in order to control spurious vibrations.

Since the presser arms 20a and 20b of the presser plate spring 20 are in elastic contact with the vicinity of both sides of the extension parts 11 and 11, even if spurious vibration occurs, the presser plate spring 20
is absorbed by the spring force of the elastic arm 16,1
7. It is not transmitted to the balls 18 and 19.

[Effects] According to the present invention, spurious vibrations when striking a bell can be prevented, a stable alarm sound can be obtained, a loud sound can be obtained with less power consumption, and efficiency is high. Furthermore, since the striking sounds can be combined in various ways, a wide variety of striking sounds can be obtained.

[Brief explanation of drawings]

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... Hitting ball, 20... Presser plate spring, 20a, 20b... Presser arm.

Claims (1)

[Scope of Claim for Utility Model Registration] Consisting of a phosphor and a shaking device for striking the phosphorus, the shaking device includes: a rocking plate that is swingably supported on a support shaft erected on a support plate; an eccentric cam that engages with the rocking plate at a position separated from a support shaft by a certain distance and drives the rocking plate to reciprocate; a drive motor that rotationally drives the eccentric cam; and both sides of the rocking plate. a pair of extension parts extending symmetrically outward from the sides; elastic arms integrally bent from respective ends of the extension parts; A holding plate spring is fixed to the support plate and has a holding arm for suppressing spurious vibrations that comes into elastic contact with a portion of both of the extending portions. A bell-striking device characterized by: