CN201918150U - Comb reeds for polyphonic musical bells - Google Patents

Abstract

A comb-shaped reed for a multi-scale musical bell, the main features of which include that the comb-shaped reed is provided with comb pieces arranged at intervals and with equal or unequal widths, and that the front end of each comb piece is provided with comb hammers of different sizes that are integrally formed with each comb piece, and the height of the comb hammers is equal to or less than the width of the comb-shaped reed. In order to comply with the environmental protection regulations of Europe and the United States, the lead block melting and casting processing and vibration-proof film attachment operations of the prior art are abolished, and the thickness of the reed steel plate and the width of each comb piece in the bass part are increased, so as to increase the weight of each comb hammer in the bass part, thereby achieving the low-frequency effect required for the bass part of a high-quality musical bell.

Description

Comb reeds for polyphonic musical bells

technical field

The utility model relates to a sound emitting element of a polyphonic musical bell, in particular to a comb-shaped reed capable of producing a polyphonic musical bell.

Background technique

The history of musical bells is very long. According to literature, musical bells originated in Switzerland and were invented by Antoine Faver in Switzerland in 1796. The comb-shaped reed 10 plays a beautiful melody, and the sound is crisp and sweet like crystal music. After listening to too much modern music and polyphonic ringtones, you may wish to return to the most simple and elegant music ringtones. Listening to the melodious and melodious music from the music box is the best choice for relaxing and nourishing your mind.

Please refer to the music bell shown in Fig. 1, further speaking, the sound of the music bell can be mainly composed of a spring (not shown), a comb-like reed 10 and a cylinder 20; please refer to As shown in Fig. 2, the material of the comb-shaped reed 10 responsible for the percussion work is a special steel plate, and the appearance is like a comb, and the comb-shaped metal sheet divided into multiple pieces is hereinafter referred to as the comb piece 11, which is used to stir and play the drum 20 The protruding grain 21 of last grain makes it sound; And the high and low pitch of control melody is controlled by the width of each comb piece 11 and the comb hammer 12 length and the weight that the front end of comb piece 11 is comb shape, longer and relatively Heavy ones can produce low notes, and shorter and lighter ones can produce high notes; the user drives its gear set through the spring force of tightening the mainspring, so that the drum 20 rotates outwards and then moves its comb-shaped reed 10, and then Produce music.

At present, the thickness of the steel plate of the multi-scale comb reed 10 on the market is 1.5 mm, and the manufacturing process is quite complicated. First, a punching machine must be used to punch out the shape, and secondly, a milling machine is used to mill the groove, and then the front end guide of the comb reed 10 is ground. angle, and by using a cutting machine to cut out the shape like a comb, and then use lead block melting and casting to complete the comb hammer 12 at the front end of the comb reed 10 (as shown in Figure 2 mesh area); lead is toxic, except that it does not meet In addition to European and American environmental regulations, lead is likely to cause harm to human kidneys and nervous system, and also has the danger of occupational accidents for operators engaged in comb reed 10 . Finally, the anti-vibration film is attached to the front end of each comb in the bass part; the attachment of the anti-vibration film is quite time-consuming, and the width of the comb is small. rate, increasing costs. Therefore, many deficiencies and problems in the production of multi-scale musical bell comb-shaped reeds have really caused headaches for manufacturers.

Therefore, how to develop and make a comb-shaped reed that can meet European and American environmental protection regulations, and its bass part can also reach the required low-frequency effect, and can also reduce production costs is a must for manufacturers. One of the problems to be overcome by studying hard, the designers of the present utility model are eager to improve and innovate in view of the above-mentioned shortcomings derived from the production of the reeds of the existing musical bells, and after years of painstaking research, they finally successfully develop Comb reeds that complete this polyphonic musical bell.

Contents of the invention

The main purpose of the utility model is to provide a comb-shaped reed for a multi-tone musical bell. After redesigning, the thickness of the reed steel plate and the width of each comb on the bass side are appropriately increased, and the combs on the bass side are The weight of the lead weight in the common method is properly distributed on the integrally formed hammers to obtain the best vibration frequency.

The second object of the present utility model is to provide a comb-shaped reed for a multi-tone musical bell. With the increase of the thickness of the reed steel plate, it replaces the original melting and casting of the lead blocks of the comb hammers in the bass part, so as to meet the environmental protection regulations of European and American countries. Regulation.

Another object of the present invention is to provide a comb-shaped reed for a multi-scale musical bell. The front end of the comb-shaped reed comb hammer does not need to be attached with an anti-vibration film, and no abnormal sound will be generated.

Another object of the present invention is to provide a comb-shaped reed for a multi-scale musical bell, which simplifies the production process, reduces the time wasted in processing, and reduces the production cost.

The comb-shaped reed of the polyphonic musical bell that can achieve the above-mentioned utility model purpose is to use a comb-shaped reed end to resist the convex grain of the drum. When the drum rotates regularly, the drum convex grain touches the comb-shaped reed, and the comb-shaped The reeds make wonderful music in which:

The comb reeds are provided with combs arranged at intervals and having a width; part of the combs are integrally formed with comb hammers with four sides, and the height of the comb hammers is equal to or less than the thickness of the comb reeds, and The centers of gravity of the comb hammer are located on the inner surfaces of the four sides.

Wherein, the width of the comb pieces with the comb hammer increases from right to left, so as to obtain the best sound range frequency of each comb piece.

Wherein, the comb hammer has two sides adjacent to parallel sides, and the center of gravity of the comb hammer can be adjusted by virtue of the distance between the two sides.

Wherein, in the comb sheet with a comb hammer, the distance between the two sides of the comb hammer and the adjacent comb hammer is gradually adjusted in size.

Wherein, the comb hammer is formed at the end of the comb piece, and the comb hammer is close to the bumps of the drum.

Thus, through the specific realization of the above-mentioned technical means, the user drives the gear set through the spring force of tightening the mainspring, so that the drum rotates outwards and then stirs the comb-shaped reeds to generate music.

Description of drawings

Fig. 1 is the schematic diagram of musical bell;

Fig. 2 is the appearance schematic diagram of existing vibrating reed;

Fig. 3 is the appearance sketch map of the comb-shaped reed of the utility model musical bell;

Fig. 4 is the left view of the comb-shaped reed of the utility model musical bell, illustrating that the distance T between the two sides is to change the length of the comb mallet in a gradual manner;

Fig. 5 is a top view of the comb-shaped reed of the musical bell of the present invention, illustrating the direction in which the length of the comb hammer changes gradually.

Explanation of reference signs:

Background technology: 10-comb reed; 11-comb piece; 12-comb mallet; 13-anti-vibration film; 20-metal roller; 21-convex grain;

The utility model: 10-comb reed; 11-comb piece; 12-comb hammer; 13-parallel side; 14-edge; ; L-comb piece length; l-to the length of the center of gravity of the comb hammer; M-comb hammer weight; m-comb piece weight.

Detailed ways

Please refer to Fig. 3 and Fig. 4, the comb-shaped reed of the polyphonic musical bell provided by the utility model, with the end of a comb-shaped reed 10, resist the bump 21 of the drum 20, when the drum 20 regularly rotates, the drum protrudes. The grain touches the comb reed 10, and the comb reed 10 sends wonderful music, wherein:

The comb reeds 10 are provided with comb pieces 11 arranged at intervals and of equal width and unequal width, and part of the comb pieces 11 are integrally formed with a comb hammer 12 with four sides. The height of the comb hammer 12 is It is equal to or less than the height of the comb reed 10, and the center of gravity of the comb hammer 12 is located on the inner surfaces of the four sides.

Since the position of the center of gravity of the comb hammer 12 will affect the frequency of the sound field, the expansion formula of the following basic calculation formula of the sound field frequency is used: among them, the acceleration of gravity g=9.8*103mm/sec ² , the elastic rate E=2.1*10 ³ kg/mm ² , the density ρ=7.85*10-6kg/mm ³ , thickness t of comb, width b of comb, length L of comb, length l to center of gravity of comb hammer, weight M of comb hammer, weight m of comb;

$\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}}\sqrt{\frac{\mathrm{<span\; class="notranslate">\; K</span>}}{\mathrm{<span\; class="notranslate">\; m</span>}{\mathrm{<span\; class="notranslate">\; l</span>}}^{\mathrm{<span\; class="notranslate">\; 3</span>}}<span\; class="notranslate">\; /</span>{\mathrm{<span\; class="notranslate">\; L</span>}}^{\mathrm{<span\; class="notranslate">\; 3</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 33</span>}<span\; class="notranslate">\; /</span>\mathrm{<span\; class="notranslate">\; 140</span>}\mathrm{<span\; class="notranslate">\; m</span>}}}$

*But K＝3EI/L ³ (Kg/mm)

I=bt ³ /12(mm ⁴ )

By means of the formula to find the best vibration range frequency, therefore, the two sides 14 of the comb hammer 12 are adjacent to the parallel sides 13, by means of the distance between the two sides 14 to adjust the center of gravity position of the comb hammer 12, so that the comb hammer The center of gravity of 12 remains on the inner faces of the four sides. In this way, the comb hammer 12 is formed at the end of the comb piece 11, and the comb hammer 12 is close to the bump 21 of the drum 20. When the user rotates the drum 20, the bump 21 and the comb hammer 12 contact each other, thereby generating sound. In addition, the width of each comb in the bass part increases from right to left, in order to obtain the best range frequency of each comb.

It is worth noting that the function of the comb hammer 12 is mainly to control the music of the bass part, and there is no comb hammer 12 on the part of the comb sheet 11 of the treble part, so the comb sheets 11 arranged at fixed and non-fixed intervals, on it Comb hammer 12 and adjacent comb hammer 12 are that the size is to present the distance of the adjustment two sides of gradual change, the meaning of so-called gradual change here is that the length of each comb hammer changes from long to short and the width changes from wide to wide. To narrow, so the comb sheet 11 of the treble part on the right does not have the comb hammer 12, and the length of each comb hammer 12 on the comb sheet 11 of the bass part of the left is getting longer and wider, and the width is getting wider and wider.

The comb-shaped reed 10 of this design not only does not need to use lead block melting and casting to manufacture the comb-shaped reed 12, but also complies with the requirements of EU RoHs, US REACH and other environmental regulations, and the integrated production method also increases the comb-shaped reed. strength. In addition, through this design, the process of attaching the anti-vibration film 13 to the front end of the comb hammer 12 is omitted.

With the above-mentioned comb reed 10 in a new design mode, due to the simplification of the production process, the production of the comb mallet 12 only needs to use a milling machine to process to the designed thickness, and then use a cutting machine to comb and cut out the required width of each comb piece 11, and , do not need to spend much manpower on the sticking anti-vibration film 13, therefore, quite suitable for mass production, and then increase the industrial applicability of the present utility model, and the sound quality of comb-shaped reed 10 bass parts has the advantage of melting and casting processing with lead block Advantages, while increasing the economic value of the utility model.

Music bells currently on the market are widely used in music boxes with 18 tones, 22 tones, 23 tones, 30 tones, 50 tones and 72 tones. What refers to is the number of metal sheets on the comb-shaped reed 10, and the more the number of shrapnel , the more complex the notes on the stave, the more keys there are, the more pleasing the music played. In addition, the musical bell movement can produce scales in the range of about 3 octaves. As explained above, the length of the comb-shaped reed 10 and the number of combs can produce different scales. However, the comb-shaped reed The longest and shortest lengths of sheet 10 are only 1.5 times, and the scale frequency variation produced by 1.5 times the length can only reach 1 octave. Increase the weight on the tip of the comb-shaped reed 10 to achieve; the comb-shaped reed of the polyphonic musical bell on the market at present, its bass part all adopts lead block casting process to increase the weight, and in the treble part then lowers the weight. The thickness of the comb is used to reduce the weight. Using the above method, the difference between the high and low fluctuations of the entire scale can be made larger, and the sound range is wider. Of course, the music is richer and better.

The comb-shaped reed 10 of the musical bell provided by the utility model has the following advantages when compared with other prior art:

1. After the utility model is redesigned, the thickness of the comb-shaped reed 10 and the width of the lowest-pitched comb are increased, and the weight required by the bass comb is properly distributed on each comb to obtain the best vibration range frequency.

2. The thickness of the steel plate is increased to replace the original melting and casting process of the lead blocks of each comb in the bass part to meet the requirements of EU RoHs, US REACH and other environmental regulations.

3. There is no need to attach anti-vibration film to the front end of the comb hammer, and there will be no abnormal sound.

4. Simplify the production process, omit the time wasted in lead casting and anti-vibration film attachment, so as to reduce costs.

5. The one-piece production method increases the strength of the comb reed, which can avoid the failure of the lead block and the anti-vibration film to fall off.

The disclosure above is only a preferred embodiment of the present utility model, and is not intended to limit the scope of the embodiment of the invention. Those skilled in the art will make equivalent changes based on the invention, and those skilled in the art will Known changes should still belong to the scope covered by the present utility model.

Claims (5)

1. a kind of comb-shaped reed of polyphonic scale music bell, for a comb-shaped reed end resists the protruding grain of cylinder, when cylinder law rotates, cylinder protruding grain can touch comb-shaped reed, it is characterized in that: The comb reeds are provided with combs arranged at intervals and having a width; part of the combs are integrally formed with comb hammers with four sides, the height of the combs is equal to or less than the thickness of the comb reeds, and the The center of gravity of the comb mallet is located at the inner faces of the four sides. 2. The comb-shaped reed of multi-scale musical bell as claimed in claim 1, characterized in that, the width of the comb with the comb hammer increases from right to left. 3. the comb-shaped reed of polyphonic scale musical bell as claimed in claim 1, is characterized in that, described comb hammer is adjacent to parallel edge by two sides, by virtue of the distance between two sides to adjust comb hammer Center of gravity position. 4. the comb-like reed of polyphonic scale musical bell as claimed in claim 1, is characterized in that, described fixed and the comb sheet that non-fixed interval arranges, the comb hammer on it and the adjacent comb hammer are size gradient Adjust the distance between the two sides. 5. The comb-shaped reed of a polyphonic musical bell as claimed in claim 1, wherein the comb hammer is formed at the end of the comb piece, and the comb hammer is close to the convex grain of the drum.

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