CN2237879Y

CN2237879Y - Free bass accordion

Info

Publication number: CN2237879Y
Application number: CN 96200167
Authority: CN
Inventors: 杨文波
Original assignee: XIANG'AN MUSICAL INSTRUMENTS CO XIANGHE COUNTY
Current assignee: XIANG'AN MUSICAL INSTRUMENTS CO XIANGHE COUNTY
Priority date: 1996-01-03
Filing date: 1996-01-03
Publication date: 1996-10-16
Anticipated expiration: 2006-01-03

Abstract

The utility model relates to a free bass accordion. The utility model is characterized in that the bass of the accordion comprises a set of push rods whose quantities are the same as those of the bass key knobs, and a set of L-shaped connecting rods whose quantities are the same as those of the pitches of the bass; the push rods are connected with the bottom of the bass key knobs. The middle of the connecting rod is pivoted on a bottom board, and the upper end of the connecting rod is connected with the push rod; the other end is fixed on an air hole cover, and a reset spring is arranged between the connecting rod and the bottom board. The bass of the utility model can play various pitches beyond the octave and the key knobs for determining the position can be used to organize the chords in different positions.

Description

Auto-bass accordion

The utility model relates to a kind of accordion, particularly about a kind of architecture advances of accordion bass part.

The present accordion of selling on the home market, the basso of its left hand be by fixing bass and fixedly the gearing of chord constitute.With 120 bass stops is example, and from calculating totally six rows outward near bellows, preceding two rows can only have other single-tone key by height in an octave, and back four rows then are big chord, little chord, big minor seventh chord (the omission five notes of traditional Chinese music) and diminished seventh chord (the omission five notes of traditional Chinese music).This four rows chord all builds up as the root sound of chord with second row's bass.No matter preceding two rows' single-tones with which device of changing voice, also can only play out the various scales in the octave range, though its reed is comprising four groups of single-tones, because physical construction is limit, can't play out the scale above octave.Back four rows' a chordal section wherein harmony series of sound is limit because of technology in each different manufacturing firm with the two harmony series of sound, the reed of several identical pitches can be arranged, so the chord that they constituted just can not be determined the position of chord exactly.In sum, traditional accordion is in artistic creation, basso is subjected to surpassing the constraint of octave and the restriction that chord can't be determined the position, can not allow the player play out, even influence the creation of a lot of composers the accordion music above the series of sound of octave and the chord of needed all places.Free bass is the pronunciation device by a pitch of a bass stop control, it is reported has auto-bass accordion abroad, it is on the basis of original basso, add three row's free basses, the structure more complicated, weight is big, general young qin hand, can't be from little use, the price of import qin is very expensive again.And China's qin hand does not have auto-bass accordion, can't train at ordinary times, is difficult to prize-winning in international competition.

At the problems referred to above, the purpose of this utility model provides a kind of simple in structure, and is in light weight, can freely play the various pitches above octave, and can use the key button of determining the position to organize the auto-bass accordion of diverse location chord.

For achieving the above object, the utility model is taked following design: a kind of auto-bass accordion, it comprises bellows, high line and left hand that the right hand has the high pitch keyboard have bass stop, the basso of air-vent cap and base plate, described air-vent cap is covered on described base plate, it is characterized in that: comprise that also one group of quantity is identical with described bass stop quantity and be connected the push rod of described bass stop bottom and identical " L " shape trace of pitch quantity of one group of quantity and described basso in described basso, the middle part of described trace is articulated on the described base plate, described trace upper end is connected with described push rod, the other end is fixed on the described air-vent cap, is connected with back-moving spring between described trace and the described base plate.

If the pitch of described bass stop only comprises the root sound, the described push rod that is connected on the described bass stop is connected with being connected to directly of described trace.

If the pitch of described bass stop comprise the root sound with the described adventitious sound that the sound pitch is identical, so, being connected two-phase realized with described push rod on the described bass stop of pitch and being connected by one group of rolled thread of described trace, be fixed with two long vertical rods and a short stanchion in the described rolled thread of each root, the described push rod that connects on each described bass stop identical with pitch of described two long vertical rods connects, and described short stanchion can touch the top of the described trace corresponding with it in the rotation process of described rolled thread.

The utility model is owing to take above design, it has the following advantages: 1, the utility model is owing to abandoned the frame mode of traditional accordion basso, adopt the pronunciation device of a bass stop by a pitch of trace control, make the utility model not only can play out the series of sound that surpasses several octaves, and can organize the chord of various phonemes arbitrarily, can also the right-hand man alternately play, two melody in both sides have enriched the expressive force of accordion music to greatest extent.2, the utility model is owing to adopt push rod of a bass stop control to drive a trace, perhaps adopt two identical two push rods of key button control of pitch to drive the mode of same trace by rolled thread, make the accordion basso simple in structure, change flexibly, can require to produce the accordion of a series of different sizes and class according to the qin hand of all ages and classes and different performances, both can satisfy the teenager and want light needs from primary school's qin weight, can satisfy the requirement of contestant's top grade again, and to compare cost price much cheap with the import accordion.The utility model can be widely used in the exercise and match of various qin hands.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

Fig. 1 is the utility model basso structural representation

Fig. 2 is 25 keyboard arrangement synoptic diagram

Fig. 3 is 58 keyboard arrangement synoptic diagram

Fig. 4 is the keyboard arrangement synoptic diagram that Fig. 3 is added with row's additional key

Fig. 5 is the rolled thread structural representation

As shown in Figure 1 and Figure 2, comprise that at one bellows 1, the right hand have in the utility model of the high line of high pitch keyboard and the basso that left hand has 25 bass stops 2, air-vent cap 3 and base plate 4, the bottom of each bass stop 2 connects an end of a push rod 5, the other end of every push rod 5 is connected with the upper end of " L " shape trace 6, the middle part 7 of trace 6 is articulated on the base plate 4, and the other end of trace 6 is connected on the air-vent cap 3.Be connected with back-moving spring 8 between trace 6 tops and the base plate 4.Like this, when pressing bass stop 2, connected push rod 5 promotes the upper end (as shown in Figure 1) of trace 6 left, and the other end of trace 6 moves upward under the effect of trace 6 middle parts 7 pivoting points, opens air-vent cap 3, makes reed send sound equipment.When unclamping bass stop 2, back-moving spring 8 retracts the top of trace 6 to the right and resets.

In the foregoing description, if only be provided with the basso of 13 bass stops 2, these 13 bass stops 2 are the root sound all, can play out the series of sound of the fixedly pitch that surpasses an octave.If when the root sound number in the bass stop 2 is 25, just can play out the series of sound of three octaves and the chord of optional position.If when the root sound number in the bass stop 2 is 58 (as shown in Figure 3), just can play out the series of sound near five octave pitches.

As shown in Figure 4, if having above the keyboard of 58 root keys 2 ' a basso, increase by row's additional key 9 again as bass stop 2, the time marquis of use understands more convenient, especially the time marquis who plays chord, can organize chord in the position nearby.Because the pitch of the pitch of additional key 9 and first row's root key 2 ' is identical, therefore the bass stop 2 of identical pitch can a shared trace 6 and an air-vent cap 3.As shown in Figure 5, the utility model will comprise one group of rolled thread 10, the rolled thread similar of the structure of rolled thread 10 and prior art this moment.The utility model is fixed two long vertical rods 11 and a short stanchion 12 in each root rolled thread 10.Be connected the push rod 5 on first row's root key 2 ' and be connected the 4th push rod of arranging on the additional key 95 and be connected with two long vertical rods 11 in the same rolled thread 10 respectively.When pressing the additional key 9 of root key 2 ' or same pitch, the push rod 5 that is connected root key 2 ' and additional key 9 bottoms all can drive vertical rod 11 and rotate, with vertical rod 11 upper end that quarter butt 12 in the rolled thread 10 will touch trace 6 that coexists, make the other end of trace 6 open air-vent cap 3 and send sound equipment.

In order to play and to use the key button of determining the position to organize the chord of diverse location convenient, can also respectively increase a row or two row's additional keys 9 as bass stop 2 as the both sides of the bass stop 2 of root sound three rows, with the identical additional key 9 of a certain row's root key 2 ' pitch, just adopt corresponding key of aforesaid way and this row 2 ' shared same trace 6 and air-vent cap 3 so.

Claims

1, a kind of auto-bass accordion, it comprises bellows, high line and left hand that the right hand has the high pitch keyboard have bass stop, the basso of air-vent cap and base plate, described air-vent cap is covered on described base plate, it is characterized in that: comprise that also one group of quantity is identical with described bass stop quantity and be connected the push rod of described bass stop bottom and identical " L " shape trace of pitch quantity of one group of quantity and described basso in described basso, the middle part of described trace is articulated on the described base plate, described trace upper end is connected with described push rod, the other end is fixed on the described air-vent cap, is connected with back-moving spring between described trace and the described base plate.

2, auto-bass accordion as claimed in claim 1 is characterized in that: the pitch of described bass stop only comprises the root sound, and the described push rod that is connected on the described bass stop is connected with being connected to directly of described trace.

3, auto-bass accordion as claimed in claim 1, it is characterized in that: the pitch of described bass stop comprise the root sound with the described adventitious sound that the sound pitch is identical, being connected two-phase realized with described push rod on the described bass stop of pitch and being connected by one group of rolled thread of described trace, be fixed with two long vertical rods and a short stanchion in the described rolled thread of each root, the described push rod that connects on each described bass stop identical with pitch of described two long vertical rods connects, and described short stanchion can touch the top of the described trace corresponding with it in the rotation process of described rolled thread.