JPS5921435Y2 - Shumoku shock absorber mechanism for bell striking device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a shock absorbing mechanism for a bell striking device.

In conventional bell striking devices, a striking ball is fixed to the tip of an elastic arm of a schmoku, and the ball is swung using the base of the schmoku as a fulcrum to simply strike a ring or the like.

In this conventional device, after the elastic arm of the schmoku hits a ring, etc., the ball is fixed to the elastic arm and bounces back strongly, causing the elastic arm to vibrate and induce a double strike. It was necessary to adjust the position of the drum and the hitting sound generating body such as phosphorus.

This has caused an increase in assembly time, which in turn has led to an increase in manufacturing costs.

The present invention solves the above-mentioned conventional drawbacks, and its purpose is to provide a hammer shock absorbing mechanism for a bell striking device that prevents the double striking failure and is easy to assemble.

In order to achieve the above object, the present invention provides a bell-striking device in which the ball of the schmoku is provided on the opposite side of the bell-striking direction of the elastic arm, and that the elastic arm moves in the opposite bell-striking direction due to the reaction force after the bell is struck. Shmoku shock absorber of a bell striking device that is within the range of elastic deformation of the elastic arm, has a base supported in the same direction as the elastic arm, and is further provided with a buffer plate arranged at a slight distance from the elastic arm. Features a device.

Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

1 to 4 show a first embodiment of a shock absorber for a bell striking device according to the present invention, and FIGS. 5 and 6 show a second embodiment.

First, the first embodiment will be described. In FIG. 1, a pinion 6 is fixed to the motor shaft 4 of a small motor 2, and a transmission gear 8 is meshed with the pinion 6.

Furthermore, an hourly strike wheel 10 is meshed with the transmission gear 8, and the rotation of the small motor 2 is transmitted to the hourly strike wheel 10.

At this time, a cam 14 is fixed to the shaft 12 of the driving wheel 10, and the cam 14 is engaged with the protrusion 22 of the shmoku 20, thereby causing the shmoku 20 to move forward.
0 in the direction of arrow A.

The shimoku 20 is made of an elastic material such as a metal plate, and is pivotally supported by a shaft 16.

A coil spring 18 is loosely engaged with this shaft 16, and one end is locked by a pin 32 fixed to the shmock 20, and the other end is locked by a shaft 34 planted from the lower plate.

The coil spring 18 applies an elastic biasing force in the direction of arrow C when the schmook 20 is swung in the direction of arrow B.

In addition, a retaining piece 24 is formed on the shank 20, and the initial set position is maintained by engaging with a retaining post 36 erected from the lower plate.

That is, when the shmoku 20 swings from the state shown in FIG. 2 to the state shown in FIG. It suddenly stops in the state shown in Figure 1.

The elastic arm 26 of the hammer 20 is formed at a position where it can come into contact with the ring 42 fixed by the ring fixing part 40, and a hitting ball 28 for hitting the ring 42 is fixed to the tip of the elastic arm 26.

In addition, a buffer plate 30 a is disposed on the non-ringing direction side of the elastic arm 26 in the shank 20 and extends from the base 50 of the shank 20 as shown in FIG. 4 (sectional view taken along the line D-D). It is bent along the elastic arm 26.

The buffer plate 30a is arranged with a slight distance from the elastic arm 26.

Note that the protrusion 22 and the engagement piece 2 formed on the shimoku 2o
4. The elastic arm 26 and the buffer plate 30a are integrally formed.

The present invention will be explained with the above-mentioned configuration, and then its operation will be explained.

In FIG. 1, a small motor 2 is rotated at a set time by an output from a timing control mechanism of a clock mechanism (not shown), and the rotation of the small motor 2 is controlled by the clock via a pinion 6 and a transmission gear 8. It is transmitted to the striking wheel 1°.

At this time, as the driving wheel 1o rotates, the cam 14 fixed to the shaft 12 rotates and engages with the protrusion 22 of the hammer 20 as shown in FIG. 2, thereby pushing the protrusion 22 down in the direction of arrow A.

Therefore, the schmook 20 is swung in the direction of arrow B around the shaft 16.

When the cam 14 further rotates, the shmoku 2o and the cam 1
4 is disengaged, and the schmook 2o is returned in the direction of arrow C by the elastic biasing force of the coil spring 18.

At this time, the shmoku 2 due to the elastic biasing force of the coil spring 18
Since the rocking movement of 0 receives a locking force due to the engagement of the protruding portion 24 and the holding column 36, the elastic arm 2 of the schmook 20 as shown in FIG.
6 is deflected by inertial force, and due to this deflection, the ball 28
and the ring 42 collide, producing a striking sound.

After the collision between the hitting ball 28 and the ring 42, the elastic arm 26 of the shmoku 20 tries to continue vibrating due to the inertia caused by the repulsion, but the vibration of the elastic arm 26 is forced by being locked to the buffer plate 30a. be attenuated.

In other words, after striking the bell, the elastic arm 26 of the schmoku 20 moves to the buffer plate 30.
By striking the ring 42, the inertial force of the elastic arm 26 is absorbed, and the ring 42 is returned to the initial stopped state shown in FIG. 1 in a short time, and the ring 42 is not struck again.

5 and 6 show a second embodiment of the present invention.

In this second embodiment, the structure and operation other than the buffer plate 30b are the same as those of the first embodiment, and the same reference numerals are used to omit the explanation.

The buffer plate 30b in the second embodiment is disposed on the non-bell striking side of the elastic arm 26 with a slight spacing, as shown in FIG.
As shown in the cross-sectional view taken along the line -E, the elastic arm 26 is bent along the elastic arm 26 at a base 50 located at the lower part of the elastic arm 26.

For this reason, after the hitting ball 28 and the ring 42 collide, the elastic arm 26 of the hammer 20 hits the buffer plate 30b, and the swinging inertia of the elastic arm 26 is absorbed, causing the ring 42 to be hit again. There's nothing to do.

As described above, according to the shock absorbing mechanism of the bell striking device according to the present invention, the vibration caused by the impact when striking the bell, that is, the swinging inertia of the elastic arm is absorbed by the shock absorbing plate, which has been a problem in the past. Lin's double hit failure does not occur.

Furthermore, the buffer plate does not have a negative effect on the bell-strike operation.
The hitting ball and phosphorus hit each other at high speed, producing a very good tone.

Furthermore, since the buffer plate can eliminate double-strike defects, adjustment of the mounting position can be simplified, and assembly time and manufacturing costs can be reduced.

In addition, since the buffer plate according to the present invention is placed with a slight distance from the elastic arm of Shumoku, the reaction force after the elastic arm strikes the bell causes surface contact (sliding) when the two strike. No problems such as chattering noise will occur.

[Brief explanation of drawings]

The drawings show a preferred embodiment of the present invention, and FIGS. 1 to 3 are front views showing each operation of the Shmoku shock absorbing mechanism of the first embodiment. FIG. 4 is a sectional view taken along line D-D of the first embodiment. FIG. 5 is a front view showing the second embodiment. FIG. 6 is a sectional view taken along the line E--E of the second embodiment. 20... Shmoku, 26... Elastic arm,
28... Ball hit, 30 a, 30 b...
...Buffer plate, 42...Rin.

Claims (1)

[Scope of utility model registration request] A shmoku has an elastic arm with a hitting ball at the tip and supports the base so that it can swing freely, and a ring etc. placed near the hitting ball of the shmoku allows the shmoku to swing in the opposite direction. a shmoku swinging means for swinging the shmoku at high speed in the direction of striking a bell from a position; a locking means for forcibly stopping the swinging of the shmoku in the direction of striking the bell by the swinging means slightly before the shmoku comes into contact with a ring or the like; In a bell-striking device having a bell-striking device, the elastic arm provided with the striking ball of the schmoku is on the opposite-bell-striking direction side, and within the range of elastic deformation in the counter-bell-striking direction due to the reaction force of the elastic arm after striking the bell. A shock absorbing mechanism for a bell striking device, characterized in that a shock absorbing mechanism for a bell striking device is provided, the base being supported in the same direction as the elastic arm, and further provided with a buffer plate disposed at a slight distance from the elastic arm.