CN100538816C

CN100538816C - Keyboard equipment

Info

Publication number: CN100538816C
Application number: CNB2006101078136A
Authority: CN
Inventors: 西田贤一
Original assignee: Yamaha Corp
Current assignee: Yamaha Corp
Priority date: 2005-07-21
Filing date: 2006-07-21
Publication date: 2009-09-09
Anticipated expiration: 2026-07-21
Also published as: JP4947155B2; JP2010113369A; CN200990198Y; CN1901028A

Abstract

A kind of keyboard equipment has the perfect balance that can keep sense of touch between Bai Jian and the black key and can make the structure of longitudinal size compactness.The follower of the follower of each weight block that is associated with corresponding white key and each weight block that is associated with corresponding black key is positioned at identical lengthwise position, and each black key distance between the pivoting action support member that the follower of weight block and the weight block that is associated with this black key be associated that is associated simultaneously is greater than be associated distance between the pivoting action support member that the follower of weight block and the weight block that is associated with this white key be associated of each white key.

Description

Keyboard equipment

Technical field

The present invention relates to a kind of keyboard equipment that is provided with pivot member, each described pivot member moves pivotally according to button operation.

Background technology

Be provided with each key wherein all vertically in the keyboard equipment of the parallel-moving type keyboard of translation,, be easy to make the key stroke (stroke) of each white key and each black key and press dynamics consistent.Yet, in being configured to the keyboard equipment that each key all moves pivotally vertically around its key pivot, distance between the part of the key that is used for button operation in the black key and the described key pivot, less than the part of the key that is used for button operation of Bai Jianzhong and the distance between the described key pivot, thereby for each black key, do not having to be difficult to guarantee sufficient key stroke under the specially designed situation, and the dynamics that presses of each black key trends towards increasing.

In order to overcome this problem, put forward a kind of keyboard equipment, wherein the key pivot of black key places after the key pivot of Bai Jian, so that the sense of touch of the sense of touch of white key and black key remains in the state of balance a little more (seeing Japanese laid-open patent bulletin (Kokai) No.S60-52439).

On the other hand, also known a kind of keyboard equipment, in this keyboard equipment, weight block is installed on keyframe or the analog in the mode of moving pivotly around corresponding pivoting action support member, and each weight block is used for applying suitable inertial force to the key that is associated when button.In general, in such keyboard equipment, when button, the follower of the weight block that is associated is just driven by the drive division of key, and weight block pivots according to button operation thus.

And, such keyboard equipment that is provided with weight block is configured to, for example, the used pivoting action support member of all a plurality of weight blocks that are associated with corresponding black key and Bai Jian all is arranged at identical vertical (front and back) position, and the follower of the weight block of each black key is positioned at the front portion of follower of the weight block of each white key.That is, utilize lever principle to guarantee the suitable key stroke of black key, make the sense of touch difference between Bai Jian and the black key minimum simultaneously.

Yet, as mentioned above, because the follower of the weight block of each black key is positioned at the front portion of follower of the weight block of each white key, so the length of the weight block of black key is elongated, reduced thus along keyboard equipment longitudinally the part the space, the wherein wt piece is waited to be arranged in this space.

For keyboard equipment, the various configurations of pivoting action support member have been proposed, described pivoting action support member is used for supporting pivotally the pivot member (key, weight block etc.) that moves pivotally according to button operation.Particularly, one of described configuration is characterised in that the pivot movement support is arranged on vertically on the rib with longitudinal extension.And some pivoting action support configuration form by injecting molded method and the keyframe that is formed from a resin for using mould.

In this case, the rib that is provided for key adjacent one another are is just very close each other, and each rib all is flat type.This problem of bringing is, need to reduce the thickness of the projection that is used to form respective rib etc. of mould inevitably, and this just reduced the intensity of mould.

Summary of the invention

First purpose of the present invention provides a kind of keyboard equipment, and it can keep the perfect balance of sense of touch between Bai Jian and the black key, and can make keyboard equipment compact dimensions longitudinally.

Second purpose of the present invention provides a kind of keyboard equipment, it can keep the perfect balance of sense of touch between Bai Jian and the black key, and realize that easily key presses the keynote scaling of dynamics (key scaling) (that is, key press dynamics gradually change according to the musical sound tone).

The 3rd purpose of the present invention provides a kind of keyboard equipment, its can reduce to be used for injection-molded support member mould thin-walled quantity and strengthen the intensity of mould.

For achieving the above object, according to a first aspect of the invention, provide a kind of keyboard equipment, it is characterized in that this keyboard equipment comprises: supporting member (10); A plurality of all have a drive division (31W, key 31B), described a plurality of key is arranged on that described supporting member (10) is gone up so that each key moves a plurality of a plurality of white keys (20) and a plurality of black keys (40) of comprising of described key pivotly around the base end part (30) of this supporting member (10); A plurality of pivoting action support members (14W, 14B), it is arranged on the described supporting member regularly; And a plurality of weight block (50W, 50B), its with respectively with described pivoting action support member (14W, the mode that 14B) is associated is provided with, and each described weight block (50W, 50B) all has follower (53W, 53B), described a plurality of weight block is provided with in the mode of the support member pivoting action that can be associated around corresponding in the described pivoting action support member, and the weight block (50B) that comprises that the white key that is associated with described white key respectively is associated weight block (50W) and the black key that is associated with described black key respectively is associated; Described drive division (the 31W of each key wherein, 31B) pivoting action according to described key drives described weight block (50W, described follower (the 53W of the weight block that is associated 50B), 53B), make the described weight block that is associated around the described pivoting action support member pivoting action that is associated thus; And wherein each white key be associated described follower (31B) of weight block (50B) of described follower (31W) and each black key of weight block (50W) that is associated is positioned at identical lengthwise position, and described black key is associated the described follower of weight block and the distance between the described pivoting action support member associated therewith greater than described white key the be associated described follower of weight block and the distance between the described pivoting action support member associated therewith simultaneously.

Utilize the setting of first aspect present invention, can keep the perfect balance of sense of touch between Bai Jian and the black key, and make keyboard equipment compact dimensions longitudinally.

Preferably, this keyboard equipment is characterised in that, comprise a plurality of range of pivotal motion restrictions (83 that are used to limit the range of pivotal motion of each described weight block, 84), the be associated free end (52W) of weight block of wherein said white key equates according to the described black key distance (stB3) that the pivot of weight block moves through that is associated substantially according to described white key the be associated free end (52B) of weight block of distance (stW3) that the pivot of weight block moves through and described black key that is associated.

Utilize the setting of this preferred embodiment, can keep the dynamics that the presses balance between white key and the black key, thereby the sense of touch between Bai Jian and the black key is complementary.

For achieving the above object, according to a second aspect of the invention, provide a kind of keyboard equipment, it is characterized in that this keyboard equipment comprises: supporting member (110); A plurality of all have drive division (31W, key 31B), described key be arranged at that described supporting member (110) is gone up so that each key can be around base end part (30) pivoting action of this supporting member (110), and described a plurality of keys comprise a plurality of white keys (20) and a plurality of black key (40); A plurality of pivoting action support members (14W, 14B), it is fixedly arranged on the described supporting member (110); And a plurality of weight block (50W, 50B), its with respectively with described pivoting action support member (14W, the mode that 14B) is associated is provided with, and each described weight block all has follower (53W, 53B), described weight block is provided with in the mode of the support member pivoting action that can be associated around corresponding in the described pivoting action support member, and the weight block (50B) that comprises that the white key that is associated with described white key respectively is associated weight block (50W) and the black key that is associated with described black key respectively is associated; Described drive division (the 31W of each key wherein, 31B) pivoting action according to described key drives described weight block (50W, described follower (the 53W of the weight block that is associated 50B), 53B), make the described weight block that is associated around the described pivoting action support member pivoting action that is associated thus; Wherein (14W 14B) is positioned at towards about described follower (53W, the position of a side longitudinally 53B) the described pivoting action support member of each described weight block; The be associated described pivoting action support member (14B) of weight block (50B) of wherein said black key is arranged to be associated the described pivoting action support member (14W) of weight block (50W) more towards this side longitudinally than described white key, and wherein for each described white key weight block (50W) and each described black key weight block (50B) that is associated that is associated, because described weight block has the key that is used for than the high-pitched tone musical sound, so described pivoting action support member (14W of described weight block, 14B) be positioned at more towards this side longitudinally, so that the sense of touch of key is from lightening gradually than high-pitched tone musical sound side than low pitch musical sound side direction.

Utilize the setting of second aspect present invention, can keep the perfect balance of sense of touch between Bai Jian and the black key, and easily realize the suitable keynote scaling of the dynamics that presses.

Preferably, this keyboard equipment comprises and is used to limit each described weight block (50W, the range of pivotal motion restrictions (183 of range of pivotal motion 50B), 184), described range of pivotal motion restrictions (183,184) limit each described white key be associated range of pivotal motion of weight block (50B) of weight block (50W) and described black key that is associated, so that for than the described weight block on the high-pitched tone musical sound side, the free end of each weight block (52W, 52B) less according to the distance that the pivoting action of described weight block moves through.

Utilize the setting of this preferred embodiment, can make the key stroke of corresponding white key consistent, thereby improve the keynote scaling of the dynamics that presses with the key stroke of corresponding black key.

For achieving the above object, according to a third aspect of the invention we, provide a kind of keyboard equipment, it is characterized in that this keyboard equipment comprises: the supporting member that is formed from a resin (10); A plurality of support members set portion (13W, 13B), itself and described supporting member are integrally formed and have longitudinally a rib shape shape of extending with vertical direction; A plurality of pivoting action support members (14W, 14B), it sets (the 13W of portion with described support respectively, 13B) be associated, and the support member that respectively moves pivotally (14W, 14B) be fixedly arranged at described support set portion (13W, 13B) the corresponding support that is associated in sets in the portion; And a plurality of rotating member (50W, 50B), its with respectively with described pivoting action support member (14W, the mode that 14B) is associated is provided with, each described rotating member (50W, 50B) be used for according to button operation and around described pivoting action support member (14W, 14B) support member that the is associated pivoting action in; Wherein the support that is associated with each rotating member sets the (13W of portion, 13B), set portion with at least one side described support that be adjacent, that be associated with one of described a plurality of rotating members in the left and right sides of described rotating member, be positioned at diverse location longitudinally.

Utilize the setting of a third aspect of the present invention, thereby the quantity of thin-walled that can reduce to be used for the mould of injection-molded supporting member strengthens the intensity of mould.

Preferably, the described pivoting action support member (14W that is associated with each described rotating member, 14B) and the described pivoting action support member that at least one side in the left and right sides of described rotating member is adjacent, be associated with one of described a plurality of rotating members, be positioned at diverse location longitudinally.

Utilize the setting of this preferred embodiment, can easily avoid moving pivotally between the support member, thereby strengthened degree of freedom in the design of pivoting action support member along the laterally interference of (left and right directions).

Preferably, described a plurality of rotating member all has follower (53W, 53B), and be a plurality of Bai Jian of comprising be associated weight block of weight block (50B) of weight block (50W) and black key that is associated, each described white key weight block (50W) that is associated moves pivotally according to the button operation of Bai Jian of being associated, each described black key weight block (50B) that is associated moves pivotally according to the button operation of black key of being associated, the described follower of each weight block is configured to that the driving to described follower moves pivotally according to associated key, the described pivoting action support member (14W of each weight block wherein, 14B) longitudinally be positioned on the side of described follower, and the described pivoting action support member (14W) that the described pivoting action support member (14B) that is associated of the weight block that is associated with described a plurality of black keys respectively is associated than the weight block that is associated with described a plurality of white keys respectively is more towards this vertical side.

Utilize the setting of this preferred embodiment, can keep the perfect balance of sense of touch between Bai Jian and the black key, and make keyboard equipment compact dimensions longitudinally.

Preferably, described a plurality of rotating member (53W, 53B) all has follower, and be a plurality of Bai Jian of comprising be associated weight block of weight block (50B) of weight block (50W) and black key that is associated, each described white key weight block (50W) that is associated moves pivotally according to the button operation of Bai Jian of being associated, each described black key weight block (50B) that is associated moves pivotally according to the button operation of black key of being associated, the described follower of each weight block is configured to that the driving to described follower moves pivotally according to associated key, and described a plurality of supports that the weight block that wherein is associated with corresponding white key is associated set be associated respectively with described corresponding black key described a plurality of supports that weight block is associated of portion (13W) and set portion (13B) and be positioned at longitudinally diverse location.

Utilize the setting of this preferred embodiment, can reduce to be used to form the thinner wall section of the mould of supporting member, thereby strengthened the intensity of mould, wherein said supporting member has the support that is associated with corresponding weight block and sets portion.

By reading the following detailed description carry out in conjunction with the accompanying drawings, will be more readily apparent from above-mentioned and other purpose, feature and advantage of the present invention.

Description of drawings

Fig. 1 is the longitudinal sectional view according to the keyboard equipment of first embodiment of the invention.

Fig. 2 is the cut-open view of white key first half.

The side view that Fig. 3 cuts open for the part of black key first half.

Fig. 4 is the partial plan layout that is assembled with the keyframe of weight block.

Fig. 5 is the cut-open view of keyframe first half.

Fig. 6 A is the synoptic diagram of the range of pivotal motion of black key and weight block.

Fig. 6 B is the synoptic diagram of the range of pivotal motion of white key and weight block.

Fig. 7 is the partial schematic planimetric map according to the keyboard equipment of second embodiment of the invention.

Fig. 8 A is the schematic side view that is assembled with the keyframe of weight block.

Fig. 8 B is the rear view that is assembled with the keyframe of weight block.

Embodiment

Now, will explain the present invention with reference to the accompanying drawing that shows the preferred embodiments of the present invention.

Fig. 1 is the longitudinal sectional view according to the keyboard equipment of first embodiment of the invention.This keyboard equipment 1 is configured to electric keyboard instrument.Hereinafter, the player's side (left side shown in Fig. 1) with keyboard equipment 1 is called " preceding " side.

As shown in Figure 1, keyboard equipment 1 has the keyframe 10 that is arranged in the housing, and this housing is formed by upper casing 60 and lower casing 70.In keyframe 10, be provided with a plurality of key unit KU, each key unit KU constitutes by a plurality of white keys 20 and a plurality of black keys 40.Each key unit KU all has the common-base end 30 that is rigidly secured on the keyframe 10, and white key 20 and black key 40 all are set to its free end can pivot vertically (or swing).

Keyframe 10 is fixed in lower casing 70 by a plurality of

screws

72,73 and 74.And the corresponding front portion of lower casing 70, upper casing 60 and keyframe 10 is fixed together by a plurality of bolts 71.By making the corresponding described rear portion of lower casing 70 and upper casing 60 fixed to one another in the corresponding appropriate location that a plurality of unshowned screws is screwed into lower casing 70 and upper casing 60.The bottom of lower casing 70 is formed with the recess 18 that for example is used to put battery.

Hereinafter, the element of representing the same type of keyboard equipment 1 and being associated with white key 20 and black key 40 and being provided with identical Reference numeral, yet, the element that is associated with white key 20 when needs differences and during with element that black key 40 is associated is distinguished from each other out the composition that is associated of same type by the respective drawings mark being added " W " or " B ".

Weight block 50 (50W, 50B) is arranged in the keyframe 10 explicitly with white key 20 and black key 40 respectively.Each

weight block

50W, 50B are supported so that

weight block

50W, 50B can be around pivot 14 (14W, 14B by the bearing 51 that is associated; Illustrate hereinafter with reference to figure 5) pivoting action vertically, this pivot 14 is arranged on weight block ribs 13 (13W or the 13B integrally formed with keyframe 10; Illustrate hereinafter with reference to figure 4 and Fig. 5) on.Nearly all quality of each weight block 50 (50W, 50B) all concentrates on the rearward end 52 (52W, 52B) of weight block 50 (50W, 50B).Weight block 50 moves pivotally in the mode with the associated key interlocking, applies suitable inertial force to realize pressing situation as the key that obtains from piano (acoustic piano) to this key thus.

The spacing detent 83 in top is outstanding from the last rear portion of keyframe 10, and the spacing detent 84 in bottom is outstanding from the following rear portion of keyframe 10.The spacing detent 84 of spacing detent 83 in top and bottom can be provided with explicitly with each key, but in the present embodiment, the spacing detent 84 of spacing detent 83 in top and bottom is arranged to be common to a plurality of keys (for example, all keys among all keys in the described equipment or the single key unit KU).The rearward end 52 of weight block 50 forms with the spacing detent 84 in bottom is abutted against, and defines the non-pressing position (initial position) of weight block 50 and associated key.On the other hand, the rearward end of weight block 50 52 forms with the spacing detent 83 in top is abutted against, and what define weight block 50 and associated key pushes final position (pivoting action final position).

And, to connect switch (key-on switch) 81 and be arranged on explicitly on the circuit board 80 with corresponding white key 20 and black key 40, this circuit board 80 is arranged on the keyframe 10.In these connection switches 81 each is connected the pressing operation that switch all detects associated key in the described key.Unshowned musical sound generating unit produces musical sound based on the testing result of connecting switch 81.

And the front portion of keyframe 10 is formed with key guide portion 12, and each key guide portion 12 is used to guide the associated key that is being subjected to pressing operation.Key guide portion 12 forms explicitly with corresponding white key 20.Each white key 20 has front end 20a, front end 20a is formed with and is used for the portion that led 33 (see figure 2)s that engage with the key guide portion that is associated 12 of key guide portion 12, so that the joint of being led between portion 33 and the key guide portion 12 limits the transverse movement of the front end 20a of white key 20, and correctly guide this front end 20a to carry out correct vertical motion.

Although be not shown specifically, a key unit KU comprises two white key units and a black key unit, and the base end part of described white key unit and black key unit is stacked.Although a key unit KU forms an octave unit, be not limited to this.By Bai Jianti is connected on the common-base end 30 via corresponding vertical articulated section 24 that is thin sheet form and respective horizontal articulated elements 22, just form the white key 20 of key unit KU.By the black key piece is connected on the base end part 30 via the respective horizontal articulated elements 42 that is thin sheet form, just form the black key 40 of key unit KU.Common-base end 30 is anchored on the keyframe 10 by screw 82.

Vertically articulated section 24 allows white key 20 to carry out oscillating motion along the direction (laterally or left and right directions) that is provided with of described key, but key guide portion 12 and led the free-ended position that the joint between the portion 33 has correctly limited white key 20.And the vertical bending of horizontal hinge 22 can pivot the free end of Bai Jian 20 along the direction (vertical direction) of pushing/unclamp of key.And similar with horizontal hinge 22, the vertical bending of horizontal hinge 42 makes the free end of black key 40 to pivot along the direction of pushing/unclamp of key.Strictly speaking, be used for the tie point PW place of support member between vertical articulated section 24 and horizontal hinge 22 of the pivoting action of Bai Jian 20, and be used for the tie point PB (see figure 6) place of support member between common-base end 30 and horizontal hinge 42 of the pivoting action of black key 40.And the corresponding longitudinal center of horizontal hinge 22 is the respective center of the pivoting action of Bai Jian 20 basically, and the corresponding longitudinal center of horizontal hinge 42 is the respective center of the pivoting action of black key 40 basically.

Fig. 2 is the cut-open view of white key 20 first halfs.The side view that Fig. 3 cuts open for the part of black key 40 first halfs.Fig. 4 is the partial top view that is assembled with the keyframe 10 of weight block 50.Fig. 5 is the cut-open view of keyframe 10 first halfs.

As shown in Figure 4 and Figure 5, keyframe 10 is formed with above-mentioned weight block ribs 13.Keyframe 10 is formed from a resin, and uses mould to form by injecting method.Integrally formed so that the weight block ribs 13 of weight block ribs 13 and keyframe 10 is extended with sheet form with vertical direction along the longitudinal from the upper surface of keyframe 10.

Weight block ribs

13W and 13B are provided with the mode corresponding pairs ground that is associated with white key 20 and black key 40 respectively.All weight block ribs 13W are arranged on identical lengthwise position.All weight block ribs 13B are arranged on identical lengthwise position.Weight block ribs 13B is positioned at the rear of weight block ribs 13W, thus longitudinally overlapping diminishing between two weight block ribs 13B and the 13W.

And pivot 14W and pivot 14B are suspended on each respectively between the weight block ribs 13W and each is between the weight block ribs 13B.Pivot 14B is positioned at the rear of pivot 14W, and two

pivot

14B and 14W are not overlapping in the vertical.

As shown in Figure 4 and Figure 5, the forefront of keyframe 10 has the previous key guide portion 12 integrally formed with keyframe 10, and it is associated so that key guide portion 12 is extended vertically with corresponding white key 20.On the other hand, as shown in Figure 2, each white key 20 has front end 20a, and front end 20a is formed with the aforesaid portion 33 that led.

As Fig. 1 and shown in Figure 5, bearing 51 (51W and the 51B of weight block 50; 51B is not shown) opening rearward.As shown in Figure 4, bearing 51 is installed on the pivot 14 from its open side, and

weight block

50W and 50B can be pivoted around

pivot

14W and 14B respectively.When weight block 50 is in wherein wt piece 50 freedom and is arranged in the state on the pivot 14 pivotally (key that is associated is not arranged under the situation on this pivot 14), the rear end 52 of weight block 50 contacts (see figure 1) by the weight of himself with spacing detent 84 formation in bottom, the front end of weight block 50 is in the lifting position, and the rear end 52 of weight block is in the down position.

(56W, 56B) downside from the bearing 51 of weight block 50 extends back tongue piece 56.Tongue piece 56 is made by barras etc. and is had flexiblely, and when bearing 51 was installed on the pivot 14, tongue piece 56 was as guide portion.In addition, the opening of bearing 51 than narrow near the forefront of tongue piece 56, makes the pivot 14 that is installed on the bearing 51 be difficult to come off near the root of tongue piece 56 thus.

Extremely shown in Figure 4 as Fig. 2, corresponding

lower bond part

53W and 53B and upper bond part 54W and the 54B of being formed with foremost of

weight block

50W and 50B,

lower bond part

53W and 53B and

upper bond part

54W and 54B are the member that is driven by white key 20 and black key 40 respectively, and define

corresponding installation recess

55W and 55B (seeing Fig. 2 and Fig. 3) between

upper bond part

54W and 54B and lower bond part 53W and the 53B.

At this, about the vertical and vertical position relation between

upper bond part

54W and 54B and lower bond part 53W and the 53B, upper bond part 54W is positioned at identical vertical and vertical position with 54B, and lower bond part 53W is positioned at identical vertical and lengthwise position with 53B.By pivot 14B being moved to the position after more leaning on than pivot 14W, just make between lower bond part 53B and the pivot 14B distance greater than between lower bond part 53W and the pivot 14W apart from (see figure 4).Suppose that the weight block 50 that its rear end has an equal in quality all carries out pivoting action single or that separate, if

lower bond part

53W and 53B are activated, because the leverage principle more than is provided with structure and pivots by the more weak driving force of proportion gauge block 50W with regard to making weight block 50B.

As shown in Figure 2, hanging type actuator 29 is integrally formed with the bottom of white key 20 front portions, so that hanging type actuator 29 extends downwards thus.Hanging type actuator 29 has elastic component 31W, and this elastic component is made by rubber etc., and the lower end, this elastic component 31W (lower end of hanging type actuator 29) of being fixed in hanging type actuator 29 are as directly driving the used drive division of weight block 50W that is associated.Promptly, when key unit KU correctly has been installed on the keyframe 10, elastic component 31W is in to be installed in and installs among the recess 55W being engaged in the state between lower bond part 53W and the upper bond part 54W, thereby elastic component 31W is contacted with the upper surface 53Wa of lower bond part 53W and the lower surface 54Wa of upper bond part 54W all the time.

For example, when pushing Bai Jian 20, the elastic component 31W of the hanging type actuator 29 of white key 20 just drives the upper surface 53Wa of the lower bond part 53W of the weight block 50W that is associated, and weight block 50W is pivoted with the mode that is mutually locked with white key 20 direction (direction that the front end of wherein wt piece 50W moves downward) of pushing along key.On the other hand, when reverse keys, the weight of weight block 50W and by the restoring force that elasticity produced of the horizontal hinge 22 of white key 20 makes weight block 50W pivot with the direction (direction that the front end of wherein wt piece 50W moves upward) of unclamping of white key 20 along key.Therefore, playing operating period, Bai Jian 20 and weight block 50W move pivotally accordingly in sealed each other mode all the time.

Engagement relationship between the structure of weight block 50B front end and black key 40 and the weight block 50B is identical with the structure and the engagement relationship between white key 20 and the weight block 50W of weight block 50W front end.More specifically, as shown in Figure 3, hanging type actuator 45 is integrally formed with the bottom of black key 40 front portions, so that hanging type actuator 45 extends (also referring to Fig. 1) downwards from black key 40.Hanging type actuator 45 has the elastic component 31B that is fixed in these hanging type actuator 45 bottoms, elastic component 31B is installed in and installs among the recess 55B being incorporated between lower bond part 53W and the upper bond part 54B, thereby elastic component 31B is contacted with the upper surface 53Ba of lower bond part 53B and the lower surface 54Ba of upper bond part 54B all the time.In player's playing procedure, the activity between the movable and operation between black key 40 and the weight block 50B and white key 20 and the weight block 50W and operate identical.

Utilize this set of present embodiment, weight block 50 and key unit KU are installed on the keyframe 10 in the following manner: at first, the bearing 51 of weight block 50 is installed on the pivot 14 that is associated from the front side.For all weight blocks 50, all carry out identical assembly operation.

On the other hand, be individually formed the key unit KU (each key unit KU is used for an octave) of requirement in advance.Then, key unit KU is moved after the side direction in the past, contact so that the elastic component 31 of all key unit KU all forms with the lower bond part 53 (its upper surface 53Wa and 53Wb) of the corresponding weight block that is associated 50.Then, key unit KU is further moved backward so that all elastic components 31 are formed install between the lower bond part 53 of the corresponding weight block that is associated and upper bond part 54 (recess 55 is installed) and engage (seeing Fig. 2 and Fig. 3).

On the other hand, when elastic component 31 and installation recess 55 carried out bonding operation, the corresponding portion 33 that led of the white key 20 of key unit KU was formed naturally joint with the key guide portion 12 that is associated of keyframe 10.Then, the common-base end 30 of key unit KU is anchored on keyframe 10 (see figure 1)s by screw 82.Other key unit is assembled on the keyframe 10 in the same manner.

In completed key board unit 1, white key 20, black key 40 and

weight block

50W and 50B pivoting action pass through following ranges: Fig. 6 A is the synoptic diagram of the corresponding range of pivotal motion of black key 40 and weight block 50B, and Fig. 6 B is the synoptic diagram of the corresponding range of pivotal motion of white key 20 and weight block 50W.

At first, as noted before, lower bond part 53W is positioned at identical lengthwise position with lower bond part 53B.Then,

weight block

50W and 50B are configured to have identical length, and the rear end 52W of

weight block

50W and 50B also is positioned at identical lengthwise position with 52B.Yet as noted before, pivot 14W and 14B are positioned at corresponding different longitudinal position, so that pivot 14B is positioned at the rear of pivot 14W.In this respect, tie point PW and PB also lay respectively at corresponding different longitudinal position, so that after tie point PB leans on slightly than tie point PW.

In above-mentioned position relation, the spacing detent 84 of spacing detent 83 in top and bottom limits the slewing area of each

weight block

50W and 50B, the stroke of following part thus, be that the length that can advance of described part is as follows: at first, suppose the stroke of representing the vertical motion of

rear end

52W and 52B with stW3 and stB3, represent the stroke of the vertical motion of

lower bond part

53W and 53B with stW2 and stB2, and the stroke of representing the vertical motion of white key 20 and black key 40 in the zone that button operation often takes place with stW1 and stW2.Magnitude relationship between the above-mentioned stroke is: stW3=stB3, stW2＜stB2, stW1=stB1.

At this, when stW3 and stB3 are discussed, suppose as free-ended

rear end

52W and 52B to be positioned at the rear that

weight block

50W and 50B butt the contact point place of spacing detent 83 in top and the spacing detent 84 in bottom or be positioned at described contact point.Strictly speaking, stW3 and stB3 represent the corresponding stroke of vertically advancing of predetermined portions (predetermined point) of rear end 52W and 52B.Alternatively, stW3 and stB3 can be defined as representing

rear end

52W and 52B butt the contact point of the spacing detent 83 in top and

rear end

52W and 52B butt and fore-and-aft distance between the contact point of the spacing detent 84 in bottom.

Because keep stW1=stB1, so the key stroke of white key 20 and black key 40 is equal to each other and balance.And, because keep stW3=stB3, so the dynamics that presses of these keys of being felt in the process of pushing accordingly also is a balance.Between white key 20 and black key 40, wherein often carry out the lengthwise position script difference in the zone of pressing operation.Yet, by making pivot 14B be positioned at the rear of pivot 14W, set the distance between lower bond part 53 and the pivot 14 simultaneously so that those lower bond parts that are associated with black key 40 and the distance between the pivot greater than those lower bond parts that are associated with white key 20 and the distance between the pivot, Bai Jian 20 and black key 40 just are being able to balance correctly aspect the sense of touch (stroke and press dynamics).

According to present embodiment, it can guarantee the perfect balance on sense of touch between Bai Jian 20 and the black key 40.And because key stroke is equal to each other, and the movement travel stW3 and the stB3 of the rear end 52 of weight block 50 be equal to each other, thereby the situation that presses of key between Bai Jian 20 and the black key 40 is balanced each other, and the sense of touch between Bai Jian 20 and the black key 40 is complementary.And, because weight block 50W has identical total length with 50B, and the position of front end (

lower bond part

53W and 53B) is consistent mutually with the position of

rear end

52W and 52B, so compare with the setting that the sense of touch of different Bai Jian of making of total length by making Bai Jian and black key and black key wherein balances each other, in the zone in the keyboard equipment that is provided with weight block 50,, more be difficult to produce wasting space longitudinally.So just can make keyboard equipment compact dimensions longitudinally.

And according to present embodiment, weight block ribs 13B is positioned at the rear of weight block ribs 13W, so that longitudinally have a little overlapping (seeing Fig. 4 and Fig. 5) between this weight block ribs 13B and the weight block ribs 13W.Be used for weight block ribs 13 and keyframe 10 integrally formed moulds being provided with and the corresponding thin protruding part of weight block ribs 13W and the interval between the 13B adjacent one another are by injecting molded method.Suppose that weight block ribs 13W and 13B are overlapping along the areal extent of broad, wait that then the areal extent that is provided with described thin protruding part increases, this has just reduced the intensity of mould.Because the setting of the key of described keyboard equipment, weight block ribs 13W and 13B are often adjacent one another are, thereby in the present embodiment, the overlapping area of these weight block ribs 13W and 13B reduces, be used to be provided with the thin required areal extent of protruding part thus and reduce, thereby can increase the intensity of mould.By the way, weight block ribs 13 for each key, continuous weight block ribs 13W or weight block ribs 13B more than two can be set, thereby the lengthwise position of the corresponding adjacent weight block ribs 13 of adjacent key need be different at least one side in each key left side and the right side.This helps to increase the intensity of the part that is used to form two kinds of weight block ribs 13 of mould.

And pivot 14B is positioned at the rear of pivot 14W, and pivot 14B and pivot 14W can be longitudinally not overlapping, and this just is easier to be avoided between the pivot 14 can strengthen the degree of freedom of the design of pivot 14 thus along the laterally mutual interference of (left and right directions).More specifically, need not say more, in general, the pivoting action support member is played and is received all power of effect in the operating process at each, thereby need have high strength and high durability, and therefore make the size of this pivoting action support member trend towards naturally increasing, wherein this pivoting action support member is come the example explanation and is used to support weight block that moves pivotally according to button operation or the like by pivot 14.Yet according to present embodiment, for each pivot 14, the lengthwise position of adjacent pivot need be different at least one side in the left side of each key and the right side, thereby produce the space towards the adjacent pivot that is positioned at different longitudinal position.Therefore, can adopt a kind of wherein supporting mechanism to stretch into design towards the space of adjacent pivot, this has just improved the degree of freedom of design.

Should be understood that, according to the sense of touch balance of correctly guaranteeing between Bai Jian 20 and the black key 40, for the relevant position and distance of white key 20 and black key 40, distance between the lengthwise position of lower bond part 53 and lower bond part 53 and the pivot 14 need not necessarily identical, but that they only need be similar to is identical.Movement travel stW3 and stB3 and key stroke stW1 and stB1 do not need identical from one another yet.

In order to increase the intensity of mould, be not limited to weight block 50 by the rotating member of the pivoting action supports support such as pivot 14.More specifically, any suitable pivot member is so long as the pivot member that pivots around the pivoting action support member according to the pressing operation of key, just enough, and pivot member can be key itself, perhaps is the member in order to move pivotally between key and weight block 50.Therefore, also need not to be provided for the weight block ribs 13 of weight block 50, as long as integrally formed to be used to support aforesaid pivot member with keyframe 10, any rib shape member is all right.

In order further to increase the intensity of mould, preferably, do not have overlapping between weight block ribs 13W and the weight block ribs 13B.

Referring now to Fig. 7 to Fig. 8 B the second embodiment of the present invention is described.

In first embodiment, pivot 14W is positioned at different lengthwise positions with pivot 14B.In a second embodiment, except that pivot 14W with pivot 14B is positioned at different lengthwise positions, the position of the position of pivot 14W and pivot 14B is according to gradually changing with the corresponding musical sound tone of each key.

Fig. 7 is the partial schematic planimetric map according to the keyboard equipment of second embodiment of the invention, and this keyboard equipment is in the wherein wt piece and is assembled in the state on the keyframe.Fig. 8 A is the schematic side elevation that is assembled with the keyframe of weight block, and Fig. 8 B is the schematic rear view that is assembled with the keyframe of weight block.

As shown in Figure 7, when the key that is associated was used for higher musical sound tone, the lengthwise position of pivot 14W and pivot 14B moved gradually backward.Therefore, when white key 20 and black key 40 were used for higher musical sound tone, pressing of key was lighter.However, position between pivot 14W and pivot 14B relation basically with first embodiment in pivot 14W identical with the relation of the position between the pivot 14B, and pivot 14B is positioned at the rear of pivot 14W.Therefore, pressing of the key of black key 40 is lighter, thereby balances each other aspect the dynamics pressing with white key 20.By the way, as the pivot 14W of the key that is being used for higher tone musical sound with when being used for making comparisons between the pivot 14B of key of lower tone musical sound, lengthwise position can be put upside down sometimes.Yet, consider the position relation between two pivot 14W adjacent one another are and the pivot 14B at least, the position after pivot 14B is positioned at and more leans on than pivot 14W is not so that can exist eccentric sensation about the dynamics that presses that changes along with the musical sound tone.

Keyframe 110 only is with the difference part of keyframe 10, the position of unshowned

weight block ribs

13W and 13B gradually changes according to the position of pivot 14W and pivot 14B, described pivot 14W and pivot 14B gradually change along with the musical sound tone, but are configured in others and keyframe 10 similar at keyframe 110.And,

weight block

50W and 50B self have respectively with first embodiment in

weight block

50W and 50B identical construction, and the lengthwise position of described

weight block

50W and 50B is different with the position of pivot 14W and pivot 14B.Therefore, the position of the position of 53W and 53B and

rear end

52W and 52B is different among the position of the position of

lower bond part

53W and 53B and

rear end

52W and 52B and first embodiment.And, the difference of the key unit KU of the key unit KU and first embodiment is, the position of hanging

type actuator

29 and 45 position and elastic component 31 is according to the diverse location of the lower bond part 53W of

weight block

50W and 50B and 53B and different, wherein hanging

type actuator

29 and 45 and elastic component 31 all not shown, but key unit KU is configured in others similar.

By the way, although pressing of key is configured to when key is used for higher tone musical sound gentlyer, suppose that for all weight blocks 50 the movable scope of the rear end 52 of weight block 50 is identical, key stroke just shortens when being used for lower tone musical sound so.Therefore, in the present embodiment, shown in Fig. 8 A and Fig. 8 B, replaced being positioned among first embodiment spacing detent 84 of spacing detent 83 in top and bottom of the surface level of corresponding unanimity, keyframe 110 is provided with the spacing detent 184 of spacing detent 183 in top and bottom that the surface level from a weight block 50 to another weight block 50 changes.

Shown in Fig. 8 B, the basal surface of the spacing detent 183 in top is higher when the key that is associated is used for lower tone musical sound, and the top surface of the spacing detent 184 in bottom is lower when the key that is associated is used for lower tone musical sound.More specifically, when key is used for lower tone musical sound, distance between spacing detent 183 in top and the spacing detent 184 in bottom that is associated becomes bigger, and therefore when the key that is associated is used for lower tone musical sound, the movement travel of the rear end 52 of weight block 50 is just longer.Utilize this set, in the zone that key 20 and black key 40 are pushed very continually in vain, make the key stroke unanimity of all keys.

By the way, if the key in gamut continues to be subjected to aforementioned the gradually changing that the position of pivot 14W and pivot 14B takes place according to the musical sound tone, then the longitudinal length of keyboard equipment 1 can become long.In order to overcome this problem, repeat aforesaid gradually changing for each range (frequency range) (octave) corresponding, and the grade (quality) of the employed weight block 50 of each range is differed from one another with key unit KU.For example, in second range than the high range of first range, the grade of weight block 50 reduces (becoming lighter) single order, and pivot 14 mode that gradually changes longitudinally is identical with pivot 14 mode that gradually changes longitudinally in first range.Therefore, the pivot 14 of the leftmost side is positioned at identical lengthwise position in the corresponding range.Should be understood that, not necessarily need repeat the described mode that gradually changes for each range corresponding to key unit KU, but can repeat on some octave terrace (several octaves-by-sereval octaves), perhaps some keys ground (severalkeys-by-sereval keys) repeats.

The something in common of the beneficial effect that the beneficial effect that present embodiment provided and first embodiment are provided is that the sense of touch between Bai Jian 20 and the black key 40 obtains balance well, and makes the longitudinal size compact conformation of keyboard equipment 1 along this equipment simultaneously.And, can easily realize the keynote scaling (dynamics that presses gradually changes according to tone) of the dynamics that presses.And the distance between the spacing detent 184 of spacing detent 183 in top and bottom changes along with the musical sound tone, between the white thus key 20 and the key stroke between the black key 40 consistent.This is suitable for the musical sound tone with regard to the sense of touch that makes button.Under the situation that the weight block 50 that need not to make each key differs from one another, these just can be realized, thereby can realize the keynote scaling of all keys under the less situation of the type of weight block 50.

In a second embodiment, only press the viewpoint that dynamics realizes the keynote scaling from basis, the lower bond part 53 of all wt piece 50 can be positioned at identical lengthwise position, and the distance between lower bond part 53 and pivot 14 of

weight block

50W and 50B simultaneously, when

weight block

50W and 50B longer when being used for that more the key of high-pitched tone scale is associated.

Although in first and second embodiment, for instance, the lower bond part 53W of weight block 50 is positioned at the place ahead of pivot 14, but be not to be defined in this, but the location of weight block 50 can longitudinally put upside down, and is different from the foregoing description, and the free end of weight block 50 can be towards the place ahead.In this case, much less, position between the pivot 14 of lower bond part 53W and each weight block 50 relation can be put upside down, and the position relation between the relation of the position between weight block 50W and the 50B, pivot 14W and the 14B concerns with position between lower bond part 53W and the 53B and also can longitudinally put upside down.

Although in first and second embodiment, used the key unit KU that all is integrated with a plurality of keys, be not to be defined in this, but key can be provided with dividually or setting independently of one another.

Claims

1. a keyboard equipment is characterized in that, this keyboard equipment comprises:

Supporting member (10);

A plurality of all have a drive division (31W, key 31B), described a plurality of key is arranged on described supporting member (10) upward so that the enough base end parts (30) around this supporting member (10) of each bond energy move pivotally, and described a plurality of keys comprise a plurality of white keys (20) and a plurality of black key (40);

A plurality of pivoting action support members (14W, 14B), it is arranged on the described supporting member (10) regularly; And

A plurality of weight block (50W, 50B), its with respectively with described pivoting action support member (14W, the mode that 14B) is associated is provided with, and each described weight block (50W, 50B) all have follower (53W, 53B), described weight block is provided with in the mode of the support member pivoting action that can be associated around corresponding in the described pivoting action support member, and the weight block (50B) that comprises that the white key that is associated with described white key respectively is associated weight block (50W) and the black key that is associated with described black key respectively is associated;

Described drive division (the 31W of each key wherein, 31B) pivoting action according to described key drives described weight block (50W, described follower (the 53W of the weight block that is associated 50B), 53B), make the described weight block that is associated around the described pivoting action support member pivoting action that is associated thus; And

Wherein each white key be associated described follower (31B) of weight block (50B) of described follower (31W) and each black key of weight block (50W) that is associated is positioned at identical lengthwise position, and described black key is associated the described follower of weight block and the distance between the described pivoting action support member associated therewith greater than described white key the be associated described follower of weight block and the distance between the described pivoting action support member associated therewith simultaneously.

2. keyboard equipment according to claim 1, it is characterized in that, this keyboard equipment comprises a plurality of range of pivotal motion restrictions (83 that are used to limit the range of pivotal motion of each described weight block, 84), the be associated free end (52W) of weight block of wherein said white key equates according to the described black key distance (stB3) that the pivot of weight block moves through that is associated substantially according to described white key the be associated free end (52B) of weight block of distance (stW3) that the pivot of weight block moves through and described black key that is associated.

3. keyboard equipment according to claim 1 is characterized in that:

(14W 14B) is positioned at towards about described follower (53W, the position of a side longitudinally 53B) the described pivoting action support member of each described weight block;

The be associated described pivoting action support member (14B) of weight block (50B) of described black key is arranged to be associated the described pivoting action support member (14W) of weight block (50W) more towards this side longitudinally than described white key, and

For each described white key weight block (50W) and each described black key weight block (50B) that is associated that is associated, because described weight block has the key that is used for than high-pitched tone musical sound side, so described pivoting action support member (14W of described weight block, 14B) be positioned at more towards this side longitudinally, so that the sense of touch of key is from lightening gradually than high-pitched tone musical sound side than low pitch musical sound side direction.

4. keyboard equipment according to claim 3, it is characterized in that, this keyboard equipment comprises: be used to limit each described weight block (50W, the range of pivotal motion restrictions (183 of range of pivotal motion 50B), 184), described range of pivotal motion restrictions (183,184) limit each described white key be associated range of pivotal motion of weight block (50B) of weight block (50W) and described black key that is associated, so that for than the described weight block on the high-pitched tone musical sound side, the free end of each weight block (52W, 52B) less according to the distance that the pivoting action of described weight block moves through.

5. keyboard equipment according to claim 1 is characterized in that: described supporting member (10) is formed from a resin;

This keyboard equipment also comprise a plurality of support members set portion (13W, 13B), itself and described supporting member are integrally formed and have longitudinally a rib shape shape of extending with vertical direction;

Described a plurality of pivoting action support member (14W, 14B) set portion (13W, 13B) association, and the support member (14W that respectively moves pivotally with described support respectively, 14B) be fixedly arranged at described support set portion (13W, 13B) the corresponding support that is associated in sets in the portion;

Described a plurality of weight block (50W, 50B) be a plurality of rotating members (50W, 50B), its with respectively with described pivoting action support member (14W, the mode that 14B) is associated is provided with, (50W 50B) is used for according to button operation and around described pivoting action support member (14W, 14B) support member that the is associated pivoting action in each described rotating member;

Wherein the described support that is associated with each rotating member sets the (13W of portion, 13B), the described support that is adjacent with at least one side in the left and right sides of described rotating member, be associated with one of described a plurality of rotating members sets portion, is positioned at diverse location longitudinally.

6. keyboard equipment according to claim 5, it is characterized in that, the described pivoting action support member (14W that is associated with each described rotating member, 14B), the described pivoting action support member that is adjacent with at least one side in the left and right sides of described rotating member, be associated with one of described a plurality of rotating members is positioned at diverse location longitudinally.

7. keyboard equipment according to claim 5, it is characterized in that, each described white key weight block (50W) that is associated moves pivotally according to the button operation of Bai Jian of being associated, each described black key weight block (50B) that is associated moves pivotally according to the button operation of black key of being associated, the described follower of each weight block is configured to that the driving to described follower moves pivotally according to associated key, the described pivoting action support member (14W of each weight block wherein, 14B) longitudinally be positioned on the side of described follower, and the described pivoting action support member (14W) that the described pivoting action support member (14B) that is associated of the weight block that is associated with described a plurality of black keys respectively is associated than the weight block that is associated with described a plurality of white keys respectively is more towards this vertical side.

8. keyboard equipment according to claim 5, it is characterized in that, each described white key weight block (50W) that is associated moves pivotally according to the button operation of Bai Jian of being associated, each described black key weight block (50B) that is associated moves pivotally according to the button operation of black key of being associated, the described follower of each weight block is configured to that the driving to described follower moves pivotally according to associated key, and described a plurality of supports that the weight block that wherein is associated with corresponding white key is associated set be associated respectively with described corresponding black key described a plurality of supports that weight block is associated of portion (13W) and set portion (13B) and be positioned at longitudinally diverse location.