JP2802742B2 - String winding mechanism for stringed instruments - Google Patents
String winding mechanism for stringed instrumentsInfo
- Publication number
- JP2802742B2 JP2802742B2 JP7348959A JP34895995A JP2802742B2 JP 2802742 B2 JP2802742 B2 JP 2802742B2 JP 7348959 A JP7348959 A JP 7348959A JP 34895995 A JP34895995 A JP 34895995A JP 2802742 B2 JP2802742 B2 JP 2802742B2
- Authority
- JP
- Japan
- Prior art keywords
- insertion hole
- shaft
- winding shaft
- winding
- locking member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Stringed Musical Instruments (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は主として三味線や脱皮線
の如き邦楽用弦楽器に用いる事を目的とすると共に、他
にチエロ，バイオリン，ビオラ等のクラシック型洋楽用
弦楽器にも利用し得る糸巻き機構に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly used for stringed instruments for Japanese music such as shamisen and eclipse, and is also applicable to classical stringed instruments such as chiero, violin and viola. It is about.
【０００２】[0002]
【従来の技術】従来の此種糸巻き機構は図８に示す如
く、楽器のヘッド部に平行状に対向する一対の支壁１，
２と、此等支壁１，２間に形成される細長い糸巻き空間
３とを備え、上記支壁１，２には相互に連通する一対の
挿入孔４，５を上記糸巻き空間３の長手方向に沿って所
要数、例えば三組貫設し、各組の挿入孔４，５は夫々図
９に示す如く、外方から内方へ向けて口径を縮小するテ
ーパー孔に形成すると共に、両挿入孔４，５が、一本の
先細テーパー状の巻軸６を孔内で支承する様に構成し上
記糸巻き空間内において上記巻軸６で弦７を巻取る様に
構成してある。上記挿入孔４，５は、巻軸６の先端側を
挿入する小径の未端側挿入孔５と、巻軸６の基端側軸胴
部を嵌挿する基端側挿入孔４とに区別されている。2. Description of the Related Art As shown in FIG. 8, a conventional thread winding mechanism of this type has a pair of support walls 1, 1 opposed in parallel to a head portion of a musical instrument.
2 and an elongated thread winding space 3 formed between the support walls 1 and 2, and a pair of insertion holes 4 and 5 communicating with each other are formed in the support walls 1 and 2 in the longitudinal direction of the thread winding space 3. 9, three sets of insertion holes 4 and 5 are formed in a tapered hole whose diameter is reduced from the outside to the inside as shown in FIG. The holes 4 and 5 are configured to support a single tapered winding shaft 6 in the hole, and are configured to wind a string 7 around the winding shaft 6 in the thread winding space. The insertion holes 4 and 5 are distinguished into a small-diameter non-end side insertion hole 5 for inserting the distal end side of the winding shaft 6 and a base end side insertion hole 4 for inserting the base shaft body of the winding shaft 6. Have been.
【０００３】上記巻軸６は、その挿入端６ａが上記一対
の挿入孔４，５の内、口径が小さい未端側挿入孔５に挿
入され、又他方の基端側軸胴部６ｂが口径の大きい基端
側挿入孔４に挿通されており、巻軸全体としては、その
軸胴部が上記基端側挿入孔４に密に合致する様に外径が
漸減縮小する先細のテーパー状軸体即ち楔形軸体に作ら
れている。上記巻軸６の基端側には、摘み８が設けてあ
り、この摘み８によって巻軸６を回転させて弦７を緊張
させたり、弛緩させたりする事が出来る。そして巻軸６
を回転させるには図９の鎖線に示す如く、巻軸６を、そ
の軸方向に微小引出して巻軸６と挿入孔４，５との摩擦
抵抗力を失わせると共に、弦７を所望張力に緊張させた
後には再度巻軸６を図９実線の如く挿入孔４，５内に圧
入して、挿入孔４，５に巻軸６の挿入端６ａと軸胴部６
ｂとを摩擦抵抗力で固定する。即ち、巻軸６を挿入孔
４，５に押込むと、巻軸６の軸胴部６ｂはそのテーパー
面である全胴面で基端側挿入孔４の孔内壁に圧接して摩
擦力を発生すると共に、巻軸６の挿入端６ａは末端側挿
入孔５の開口縁に圧接して摩擦力を発生するから、これ
によって巻軸６は挿入孔４，５に摩着固定される。この
様に巻軸６を挿入孔４，５に圧入及び引出して係脱させ
ると共に巻取り時には挿入孔４，５内で緩挿状態にある
巻軸６を回転させるために、挿入孔４，５内には図９の
如く金属製のスリーブ４ａ，５ａが例えば接着剤で固着
されており、これにより挿入孔４，５の摩耗が防止され
ている。[0003] The winding shaft 6 has an insertion end 6a inserted into the small-diameter non-end side insertion hole 5 of the pair of insertion holes 4 and 5, and the other base end side shaft body 6b having a diameter. Tapered shaft whose outer diameter is gradually reduced and reduced so that its shaft body closely matches the base-side insertion hole 4 as a whole. It is made of a body or wedge-shaped shaft. A knob 8 is provided on the proximal end side of the winding shaft 6, and the string 8 can be tensioned or relaxed by rotating the winding shaft 6 with the knob 8. And reel 6
As shown by the chain line in FIG. 9, the winding shaft 6 is slightly pulled out in the axial direction to lose the frictional resistance between the winding shaft 6 and the insertion holes 4 and 5, and the string 7 is set to a desired tension. After being tensioned, the winding shaft 6 is again press-fitted into the insertion holes 4 and 5 as shown by the solid line in FIG. 9, and the insertion end 6a of the winding shaft 6 and the shaft body 6 are inserted into the insertion holes 4 and 5.
b is fixed by frictional resistance. That is, when the winding shaft 6 is pushed into the insertion holes 4 and 5, the shaft body portion 6b of the winding shaft 6 is pressed against the inner wall of the base-side insertion hole 4 by the entire body surface which is a tapered surface to reduce the frictional force. At the same time, the insertion end 6a of the winding shaft 6 is pressed against the opening edge of the distal insertion hole 5 to generate a frictional force, whereby the winding shaft 6 is fixed to the insertion holes 4 and 5 by friction. In this way, the winding shaft 6 is pressed into and pulled out of the insertion holes 4 and 5 to disengage it, and at the time of winding, the rotation of the winding shaft 6 that is loosely inserted in the insertion holes 4 and 5 is performed. As shown in FIG. 9, metal sleeves 4a and 5a are fixed to the inside by, for example, an adhesive, thereby preventing the insertion holes 4 and 5 from being worn.
【０００４】[0004]
【発明が解決しようとする課題】前述した従来の糸巻き
機構においては、木製の巻軸６を挿入孔４，５に圧入す
る事で摩擦抵抗を得て、これにより巻軸６を固定してい
るから、巻軸６が演奏中における弦の振動で軸方向へ微
動し、これによって巻軸６の固定が緩んで弦の張力が減
少すると云う問題がある他、挿入孔４，５にスリーブ４
ａ，５ａが固着されている場合には巻軸６が早期に摩耗
して所要の摩擦抵抗が得られなくなると云う問題があ
り、更に又弦の張力調節の都度毎に巻軸６を挿入孔４，
５に挿抜する必要があるから、調弦手間が煩わしいと云
う問題もあった。更に又、従来の三味線等の邦楽器にお
いては、木製の巻軸を単品毎に加工して、各弦楽器の挿
入孔に合致する様に調整しているから、加工手間が煩わ
しく大量安価な生産が出来ないと云う問題もある。In the above-described conventional thread winding mechanism, frictional resistance is obtained by press-fitting the wooden winding shaft 6 into the insertion holes 4 and 5, thereby fixing the winding shaft 6. As a result, the winding shaft 6 slightly moves in the axial direction due to the vibration of the strings during the performance, which causes a problem that the fixing of the winding shaft 6 is loosened and the tension of the strings is reduced.
If a and 5a are fixed, there is a problem that the winding shaft 6 is worn out early and a required frictional resistance cannot be obtained. Further, the winding shaft 6 is inserted into the insertion hole every time the string tension is adjusted. 4,
There is also a problem that the tuning is troublesome because it is necessary to insert and remove the plug in the fifth stage. Furthermore, in the case of conventional Japanese musical instruments such as shamisen, wooden winding shafts are machined individually and adjusted to match the insertion holes of each stringed instrument. There is also the problem of not being able to do so.
【０００５】[0005]
【課題を解決するための手段】本発明では、弦を巻取る
巻軸は、その挿入端を未端側挿入孔内において回転自在
に支承される。そして巻軸の軸胴部はテーパー状の楔型
に作られて、同様にテーパー状の孔内壁を有する基端側
挿入孔に挿通される。上記巻軸の軸胴部には、口径を拡
縮出来る締付環が外嵌されており、この締付環は巻軸を
軸方向に摺動させる事により、上記挿入孔の内壁に沿っ
て移動し、これによって拡縮する。上記巻軸には巻軸を
挿入孔内において軸方向へ移行させる外部操作型の調整
手段が設けてあり、これによって巻軸を移行させて、締
付環の口径を拡縮し、以て巻軸と挿入孔内壁との間に生
じる摩擦力を増減させる。According to the present invention, a winding shaft for winding a string has its insertion end rotatably supported in an endless insertion hole. The shaft body of the winding shaft is formed in a tapered wedge shape, and is similarly inserted into a base end side insertion hole having a tapered hole inner wall. A tightening ring capable of expanding and contracting the diameter is externally fitted to the shaft body of the winding shaft. The tightening ring moves along the inner wall of the insertion hole by sliding the winding shaft in the axial direction. Then, it is scaled. The winding shaft is provided with an externally operated adjusting means for shifting the winding shaft in the axial direction in the insertion hole, thereby shifting the winding shaft to enlarge and reduce the diameter of the tightening ring. To increase or decrease the frictional force generated between the hole and the inner wall of the insertion hole.
【０００６】[0006]
【発明の実施の形態】本発明糸巻き機構は、弦楽器ヘッ
ド部の一対の支壁に相互に連通する一対の挿入孔を設
け、その一方を未端側挿入孔として、これに巻軸の挿入
端を支承させ、又他方を基端側挿入孔として、この挿入
孔の内壁を、その口径が上記未端側挿入孔側に向けて漸
減縮小する様なテーパー面に形成すると共に、該基端側
挿入孔には巻軸の軸胴部を挿通し、上記巻軸の軸胴部
は、上記基端側挿入孔に合致する様なテーパー面に形成
すると共に、口径を拡縮出来る締付環を外嵌し、上記締
付環は、上記巻軸の軸胴部に、その軸方向へ不動な様に
緩嵌着されると共に、軸方向へ形成されたスリットによ
り分断される構成に作られており、上記巻軸には、該巻
軸を軸方向へ摺動せしめる事が出来る外部操作可能な調
整手段、例えば調整螺子を設けると共に、上記巻軸の、
上記未端側挿入孔に支承された挿入端は回転自在になる
様に構成してある。DESCRIPTION OF THE PREFERRED EMBODIMENTS The thread winding mechanism of the present invention is provided with a pair of insertion holes communicating with each other on a pair of support walls of a stringed musical instrument head portion, one of which is defined as an endless insertion hole, and the insertion end of a winding shaft is formed on the insertion hole. The inner wall of the insertion hole is formed on a tapered surface such that the diameter thereof gradually decreases toward the endless insertion hole, and the other end of the insertion hole is formed on the base end side. The shaft body of the winding shaft is inserted into the insertion hole, and the shaft body of the winding shaft is formed with a tapered surface that matches the base side insertion hole, and a fastening ring that can expand and contract the bore is removed. The fastening ring is loosely fitted to the shaft body of the winding shaft so as not to move in the axial direction, and is formed so as to be divided by a slit formed in the axial direction. An externally operable adjusting means, such as an adjusting screw, capable of sliding the winding axis in the axial direction. Along with providing, of the winding shaft,
The insertion end supported by the non-end side insertion hole is configured to be rotatable.
【０００７】従って本発明機構においては、上記調整手
段により巻軸を摺動せしめる事によって、上記締付環を
基端側挿入孔の孔内壁に沿って移動せしめ、これにより
締付環の口径を拡縮して、巻軸に作用する挿入孔内壁の
摩擦抵抗力を調整する事が出来る。Therefore, in the mechanism of the present invention, the tightening ring is moved along the inner wall of the base-side insertion hole by sliding the winding shaft by the adjusting means, thereby reducing the diameter of the tightening ring. By expanding and contracting, the frictional resistance of the inner wall of the insertion hole acting on the winding shaft can be adjusted.
【０００８】[0008]
【実施例１】本発明糸巻き機構は、図１に示す如く弦楽
器１０のヘッド部２０に設けられた平行１対の支壁２
１，２２と、此等支壁間に形成された糸巻き空間２３
と、上記支壁間に装架された所要数の巻軸３０とを備え
た構成に作られている。上記弦楽器は、一対の支壁２
１，２２を備えたものであり、実施例では三味線を示し
ているが、この他に蛇皮線やチエロ，バイオリン，ビオ
ラ等の楽器も同様な構成を有しており、従って此等楽器
についても本発明糸巻き機構を実施する事が出来る。Embodiment 1 A thread winding mechanism according to the present invention comprises a pair of parallel support walls 2 provided on a head portion 20 of a stringed musical instrument 10 as shown in FIG.
1 and 22 and a thread winding space 23 formed between these support walls.
And a required number of winding shafts 30 mounted between the support walls. The stringed instrument includes a pair of support walls 2
In the embodiment, the shamisen is shown, but in addition to this, instruments such as snake skin, chiero, violin, and viola also have the same configuration. Inventive thread winding mechanism can be implemented.
【０００９】上記一対の支壁２１，２２には図２，３に
示す如く、相互に対向する一対の挿入孔２４，２５が所
要組数、例えばこの実施例では三対設けてあり、各対の
挿入孔２４，２５は夫々上記空間２３側を小径に又反対
側を大径にして作られると共に全体の口径が大きい基端
側挿入孔２４と、全体の口径が小さい未端側挿入孔２５
に区分されており、此等挿入孔２４，２５には夫々孔内
に金属製又は合成樹脂製のスリーブ２４１，２５１が密
嵌固定されている。而して上記基端側挿入孔２４の空間
２３における内側開口部の口径は上記未端側挿入孔２５
の空間２３における内側開口部の口径より大きく作られ
ていて、後述する巻軸胴面が挿通出来る様に構成されて
いる。As shown in FIGS. 2 and 3, the pair of support walls 21 and 22 are provided with a required number of pairs of insertion holes 24 and 25 facing each other, for example, three pairs in this embodiment. The insertion holes 24 and 25 are formed with the diameter of the space 23 side small and the diameter of the opposite side large, respectively, and the base end side insertion hole 24 having a large overall diameter and the non-end side insertion hole 25 having a small overall diameter.
Metal or synthetic resin sleeves 241 and 251 are tightly fitted in the insertion holes 24 and 25, respectively. Thus, the diameter of the inner opening in the space 23 of the proximal insertion hole 24 is the same as that of the non-end insertion hole 25.
Is formed so as to be larger than the diameter of the inner opening in the space 23, and is configured such that a reel body surface described later can be inserted therethrough.
【００１０】上記巻軸３０は、図３に示す如く、外径を
先端に向けて漸次縮減したテーパ状即ち楔型の軸胴部３
１と、この軸胴部３１の先端に設けられた係止部材３２
と、軸胴部位置調整用の調整螺子３３と、軸胴部３１
に、該胴部が上記基端側挿入孔２４に挿通された時にお
いて、この挿入孔２４内に位置する様に設けられた割型
の締付環３４と、更に上記軸胴部３１の基端側に、軸胴
部３１と一体的、又は図３の如く取外し可能に設けられ
た摘み部３５とを有している。As shown in FIG. 3, the winding shaft 30 has a tapered or wedge-shaped shaft body 3 whose outer diameter is gradually reduced toward its tip.
1 and a locking member 32 provided at the tip of the shaft body 31
An adjusting screw 33 for adjusting the position of the shaft body;
When the body is inserted into the base-side insertion hole 24, a split-type tightening ring 34 provided so as to be located in the insertion hole 24, and a base of the shaft body 31. On the end side, a knob 35 is provided integrally with the shaft body 31 or detachably provided as shown in FIG.
【００１１】上記軸胴部３１は、支壁間の空間２３内で
弦４０を巻取り、巻解すため、胴面に弦端係止孔３１１
を有しており、又先端部には図２に示す如く調整螺子３
３を螺入する螺子孔３１２を軸方向に穿設形成してい
る。更に又上記軸胴部３１には、先端部を段状に縮小し
て形成した軸受取付部３１３が設けてあり、この軸受取
付部３１３は断面が非円形、例えば四角形や、図４に示
す如く両側を垂直面３１３ａ，３１３ｂに形成した楕円
環状に作られている。The shaft body 31 winds and unwinds the string 40 in the space 23 between the support walls.
And an adjusting screw 3 at the tip as shown in FIG.
A screw hole 312 into which the screw 3 is screwed is formed in the axial direction. Further, the shaft body portion 31 is provided with a bearing mounting portion 313 formed by reducing the tip portion in a stepped manner. The bearing mounting portion 313 has a non-circular cross section, for example, a square shape as shown in FIG. Both sides are formed in an elliptical annular shape formed on vertical surfaces 313a and 313b.
【００１２】上記係止部材３２は、上記軸胴部３１の先
端部に回転可能に外嵌されると共に、上記未端側挿入孔
２５の孔内に外方から係着する様に、即ちその口径を挿
入孔２５の外方の開口部口径より小さく又内側の開口部
口径より大きく作られており、且つ上記軸胴部３１より
離脱しない様に構成されている。そして又上記係止部材
３２は上記軸受取付部３１３に外嵌された軸受３６に対
し軸方向へ不動なる様係着されており、この係着は図５
に示す如く係止部材３２の縮小側端面に形成された環状
面３２１により行われる。上記係止部材３２を軸方向へ
不動に且つ周方向へは回転不能ならしめるために実施例
では、図２，図３に示す如く、上記係止部材３２を円環
体に作ると共に、上記調整螺子３３を上記軸受３６の外
面に係着させる事で脱落を阻止している。The locking member 32 is rotatably fitted to the tip of the shaft body 31 so as to be engaged with the inside of the non-end side insertion hole 25 from the outside, that is, the locking member 32 has The diameter of the opening is smaller than the diameter of the opening outside the insertion hole 25 and larger than the diameter of the opening inside the insertion hole 25, and is configured so as not to be separated from the shaft body 31. The locking member 32 is fixed to the bearing 36 externally fitted to the bearing mounting portion 313 so as not to move in the axial direction.
This is performed by an annular surface 321 formed on the reduced end surface of the locking member 32 as shown in FIG. In order to make the locking member 32 immovable in the axial direction and incapable of rotation in the circumferential direction, in the embodiment, as shown in FIGS. The screw 33 is engaged with the outer surface of the bearing 36 to prevent the bearing 33 from falling off.
【００１３】上記軸受取付部３１３には図４に示す如
く、内孔が軸受取付部３１３に密合する一方、外面が上
記係止部材３２の内孔と密合する軸受３６が嵌着されて
いて、この軸受３６により上記係止部材３２は自由に回
転出来る様に構成してある。As shown in FIG. 4, a bearing 36 whose inner hole is tightly fitted to the bearing mounting portion 313 and whose outer surface is tightly fitted to the inner hole of the locking member 32 is fitted to the bearing mounting portion 313 as shown in FIG. Thus, the locking member 32 can be freely rotated by the bearing 36.
【００１４】上記係止部材３２と上記軸受３６とは、図
２，図３に示す如く、軸胴部３１と反対方向に口径が縮
減するテーパー面を有しており、従って係止部材３２は
図２に示す如く、挿入孔２５内に嵌入した状態で挿入孔
２５に係合する。As shown in FIGS. 2 and 3, the locking member 32 and the bearing 36 have a tapered surface whose diameter is reduced in a direction opposite to the shaft body 31. As shown in FIG. 2, it is engaged with the insertion hole 25 while being fitted into the insertion hole 25.
【００１５】上記締付環３４は、上記巻軸３０の軸胴部
３１に合致する先端縮減型環体に作られると共に軸方向
に沿ったスリット３４１により分断されており、このス
リット３４１の幅の増縮によって軸胴部３１に対する締
付力を増減する様に作られている。The tightening ring 34 is formed in a reduced-end ring body that matches the shaft body 31 of the winding shaft 30 and is divided by a slit 341 along the axial direction. The tightening force on the shaft body 31 is increased or decreased by expansion and contraction.
【００１６】上記摘み部３５は、実施例では着脱自在な
木製把手で作られており、このために軸胴部３１の基端
部には固定用突起３１４が設けてあり、又上記摘み部３
５に接する基端側には、上記締付環３４を嵌着する浅い
取付溝３１５が囲繞形成されている。In the embodiment, the knob 35 is made of a detachable wooden handle. For this purpose, a fixing projection 314 is provided at the base end of the shaft body 31.
On the base end side in contact with 5, a shallow mounting groove 315 in which the tightening ring 34 is fitted is formed.
【００１７】以上の処において、本発明機構は下記の如
く構成する事も出来る。上記係止部材３２は、軸胴部３
１から脱落しない様に係止されつつ、軸胴部３１に対し
て回転自在に取付けられ、且つ又軸胴部３１が調整螺子
３３により挿入孔２５の外方へ向けて引出された時にお
いても、挿入孔２５に係止出来る構成であれば良い。In the above process, the mechanism of the present invention can also be configured as follows. The locking member 32 includes the shaft body 3
Even when the shaft body 31 is pulled out to the outside of the insertion hole 25 by the adjusting screw 33 while being rotatably attached to the shaft body 31 while being locked so as not to fall off from 1. And any structure that can be locked in the insertion hole 25.
【００１８】本発明糸巻き機構は、図２，図３に示す如
く、締付環３４と摘み部３５とを取付けた軸胴部３１
を、その先端部の軸受取付部３１３が未端側挿入孔２５
内に突出する様にして一対の挿入孔２４，２５内に挿通
し、次いで未端側挿入孔２５内で軸受取付部３１３を軸
受３６に外嵌する。この軸受３６には予め係止部材３２
が回転自在に外嵌されていてこの係止部材３２が未端側
挿入孔２５内に軸方向不動に係着される。このために上
記調整螺子３３は最後に軸胴部３１の先端から螺入す
る。即ちこの状態の時には、図５に示す如く、調整手段
としての調整螺子３３が軸受３６を軸受取付部３１３か
ら脱落しない様にその外面を押圧すると共に、軸受３６
と係止部材３２との外面は軸胴部３１に対して逆テーパ
ー面に形成され、且つ未端側挿入孔２５の孔壁は内側に
向けて口径を漸減するテーパー面に形成されているか
ら、軸受３６が押圧されると、これに軸方向へ不動に係
合された係止部材３２は未端側挿入孔２５の内壁に押圧
されて摩着固定される。而してこの状態において上記巻
軸３０は、即ち軸胴部３１は係止部材３２に対して回転
自在であるから、これによって未端側挿入孔２５内にお
いて軽快に回転する事が出来る。As shown in FIGS. 2 and 3, the thread winding mechanism of the present invention comprises a shaft body 31 having a fastening ring 34 and a knob 35 attached thereto.
The bearing mounting portion 313 at the tip of the
Then, it is inserted into the pair of insertion holes 24 and 25 so as to protrude inward, and then the bearing mounting portion 313 is externally fitted to the bearing 36 in the non-end side insertion hole 25. The bearing 36 has a locking member 32 in advance.
Are rotatably fitted to the outside, and the locking member 32 is fixedly engaged with the non-end side insertion hole 25 in the axial direction. For this purpose, the adjusting screw 33 is finally screwed in from the tip of the shaft body 31. That is, in this state, as shown in FIG. 5, the adjusting screw 33 as an adjusting means presses the outer surface of the bearing 36 so that the bearing 36 does not fall out of the bearing mounting portion 313, and
The outer surface of the locking member 32 and the outer surface of the locking member 32 are formed in a reverse taper surface with respect to the shaft body portion 31, and the hole wall of the non-end side insertion hole 25 is formed in a taper surface whose diameter gradually decreases inward. When the bearing 36 is pressed, the locking member 32 fixedly engaged with the bearing in the axial direction is pressed against the inner wall of the non-end side insertion hole 25 and is fixedly fixed thereto. In this state, the winding shaft 30, that is, the shaft body 31 is rotatable with respect to the locking member 32, so that the winding shaft 30 can be rotated lightly in the endless insertion hole 25.
【００１９】次いでこの状態で調整螺子３３を、該螺子
３３が螺子孔３１２に深く螺合する様、即ち緊締状態に
螺合させると、軸胴部３１は挿入孔２５の孔内に係着し
ている係止部材３２を支点として、挿入孔２５の外方に
向けて微小移行せしめられる。而してこの軸胴部３１の
移動量は、図５に示す如く、軸受取付部３１３の、上記
係止部材３２と軸胴部３１との間に存在する長さｌによ
り定まる。上述の如く軸胴部３１が移行すると軸胴部３
１に嵌着された締付環３４は基端側挿入孔２４内に微小
量引込まれてスリット３４１の幅を縮小し、これによっ
て挿入孔２４内における軸胴部３１に対する摩擦抵抗力
を増大させるから、摘み部３５の回転操作が重くなる様
にトルク調整を行う事が出来る。即ち本発明機構によれ
ば、巻軸３０のトルクの調整を上記調整螺子３３の螺子
孔３１２に対する螺合度によって自在に行う事が出来
る。Then, in this state, when the adjusting screw 33 is screwed deeply into the screw hole 312, that is, screwed in a tightened state, the shaft body 31 is engaged with the insertion hole 25. With the locking member 32 serving as a fulcrum, it is slightly shifted outward of the insertion hole 25. As shown in FIG. 5, the amount of movement of the shaft body 31 is determined by the length l of the bearing mounting portion 313 between the locking member 32 and the shaft body 31. When the shaft body 31 shifts as described above, the shaft body 3
The tightening ring 34 fitted in 1 is pulled in a small amount into the proximal insertion hole 24 to reduce the width of the slit 341, thereby increasing the frictional resistance against the shaft body 31 in the insertion hole 24. Therefore, the torque can be adjusted so that the rotating operation of the knob 35 becomes heavy. That is, according to the mechanism of the present invention, the torque of the winding shaft 30 can be freely adjusted by the degree of screwing of the adjusting screw 33 into the screw hole 312.
【００２０】上記調整螺子３３を螺子孔３１２から引出
す方向に緩めるど、軸胴部３１は微小量後退して締付環
３４のスリット３４１が復元拡大するから、これに伴っ
て軸胴部３１に印加される挿入孔２４の孔内摩擦抵抗力
が減衰し、摘み部３５の回転操作が軽くなる。When the adjusting screw 33 is loosened in a direction in which the adjusting screw 33 is pulled out from the screw hole 312, the shaft body 31 is retracted by a small amount and the slit 341 of the tightening ring 34 is restored and enlarged. The applied frictional resistance in the insertion hole 24 is attenuated, and the rotation of the knob 35 is reduced.
【００２１】[0021]
【実施例２】本発明糸巻き機構は、前述の如く、係止部
材が未端側挿入孔に係着すれば良いから、図６に示す如
く係止部材３２′を未端側挿入孔２５′の口縁に係着し
ても良く、この様な構成は現在金属製スリーブを挿入孔
内に取付けていない弦楽器、例えばバイオリン等につい
て有用である。この実施例では、末端側挿入孔２５′の
形状によって、係止部材３２′及び軸受３６′は、その
外面がテーパー面に形成されていない。上記係止部材３
２′は、外方開口の円筒状に作られ、その開口縁に拡大
状のフランジ部３２１′を設け、このフランジ部３２
１′により未端側挿入孔２５′の開口部に係着してい
る。従って調整螺子３３を操作して軸胴部３１′を未端
側挿入孔２５′側に引寄せる時は、上記フランジ部３２
１′が支点となる。Embodiment 2 In the thread winding mechanism of the present invention, as described above, the locking member only needs to be engaged with the non-end side insertion hole, so that the locking member 32 'is connected to the non-end side insertion hole 25' as shown in FIG. Such an arrangement is useful for stringed musical instruments which do not currently have a metal sleeve mounted in the insertion hole, such as a violin. In this embodiment, due to the shape of the distal insertion hole 25 ', the outer surfaces of the locking member 32' and the bearing 36 'are not formed as tapered surfaces. The locking member 3
2 'is formed in a cylindrical shape with an outer opening, and an enlarged flange portion 321' is provided at the opening edge thereof.
1 'engages with the opening of the non-end side insertion hole 25'. Therefore, when operating the adjusting screw 33 to draw the shaft body 31 ′ toward the endless insertion hole 25 ′, the flange 32
1 'is a fulcrum.
【００２２】上記軸胴部３１を摺動せしめるための調整
手段としては、上記実施例では雄螺子３３が用いられて
いるが、この雄螺子は図７の如く巻軸先端部に設けられ
た螺子部３１２′に帽着螺合する雌螺子筒３３′であっ
ても良く、かくすれば調整手段としての雌螺子筒３３′
の操作面を大きく出来るから、調整操作が容易である。As an adjusting means for sliding the shaft body 31, a male screw 33 is used in the above embodiment, and this male screw is a screw provided at the tip of the winding shaft as shown in FIG. The female screw cylinder 33 'may be a female screw cylinder 33' which is screwed into the cap 312 '.
Since the operation surface of can be enlarged, the adjustment operation is easy.
【００２３】[0023]
【発明の効果】本発明糸巻き機構は、調整螺子３３の緊
締度によって軸胴部３１を軸方向へ微少移行せしめ、こ
れによって締付環３４の口径縮小動作を介して軸胴部３
１に対する基端側挿入孔２４の内壁の摩擦抵抗を調整す
るものであるから、軸胴部３１に作用する摩擦抵抗を所
望の強さに調整し、その儘の状態で糸巻き動作をする事
が出来る。即ち軸胴部３１は摩擦抵抗で弦４０を緊張さ
せた状態で固定出来ると共に、摘み部３５を摩擦抵抗に
抗して手指で回転させる事で、弦４０の緊張度を増減す
る事が出来るから、調弦に当って巻軸３０を軸方向に摺
動させる必要が全くなく、調弦操作が極めて容易であ
る。According to the thread winding mechanism of the present invention, the shaft body 31 is slightly shifted in the axial direction by the tightening degree of the adjusting screw 33, whereby the diameter of the shaft body 3 is reduced through the operation of reducing the diameter of the tightening ring 34.
Since the frictional resistance of the inner wall of the base side insertion hole 24 with respect to 1 is adjusted, the frictional resistance acting on the shaft body 31 is adjusted to a desired strength, and the thread winding operation can be performed as it is. I can do it. That is, the shaft body 31 can be fixed in a state where the string 40 is tensioned by frictional resistance, and the degree of tension of the string 40 can be increased or decreased by rotating the knob 35 with fingers against the frictional resistance. There is no need to slide the winding shaft 30 in the axial direction during tuning, and the tuning operation is extremely easy.
【００２４】そして又本発明機構においては、巻軸３０
は回転自在に係止部材３２で支承されて未端側挿入孔２
５の口縁に係止されていると共に巻軸３０の摩擦抵抗は
締付環３４で得られるから、巻軸回転に伴う軸胴部３１
と一対の挿入孔２４，２５との間に大きな摩擦力が作用
せず、従って軸胴部３１の摩耗を防止することが出来
る。In the mechanism of the present invention, the winding shaft 30
Is rotatably supported by a locking member 32, and is provided with a non-end side insertion hole 2.
5 and the frictional resistance of the winding shaft 30 is obtained by the tightening ring 34.
No large frictional force acts between the shaft body 31 and the pair of insertion holes 24 and 25, and therefore, the abrasion of the shaft body 31 can be prevented.
【００２５】更に又本発明機構は、巻軸３０に対する摩
擦抵抗力を締付環３４で得るものであるから、軸胴部３
１のテーパー面と基端側挿入孔２４の孔内壁との密合度
を精密に得る必要がなく、従って大量生産した巻軸を既
存の弦楽器にその儘利用出来ると云う効果もある。Further, in the mechanism of the present invention, a frictional resistance against the winding shaft 30 is obtained by the tightening ring 34.
There is no need to precisely obtain the degree of tightness between the tapered surface 1 and the inner wall of the proximal insertion hole 24. Therefore, there is also an effect that a mass-produced reel can be used as it is for an existing stringed instrument.
【図１】本発明糸巻き機構を備えた三味線の正面図であ
る。FIG. 1 is a front view of a shamisen provided with the thread winding mechanism of the present invention.
【図２】同要部の一部切欠拡大正面図である。FIG. 2 is a partially cutaway enlarged front view of the main part.
【図３】図２の分解正面図である。FIG. 3 is an exploded front view of FIG. 2;
【図４】図２の４−４線に沿った断面図である。FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;
【図５】本発明糸巻き機構の巻軸の要部を拡大した縦断
正面図である。FIG. 5 is an enlarged longitudinal sectional front view of a main part of a winding shaft of the thread winding mechanism of the present invention.
【図６】本発明糸巻き機構の他の実施例を示す巻軸要部
の拡大縦断正面図である。FIG. 6 is an enlarged longitudinal sectional front view of a main part of a bobbin showing another embodiment of the thread winding mechanism of the present invention.
【図７】同更に他の実施例を示す巻軸要部の拡大縦断正
面図である。FIG. 7 is an enlarged vertical sectional front view of a main part of a bobbin showing still another embodiment.
【図８】従来の糸巻き機構の正面図である。FIG. 8 is a front view of a conventional thread winding mechanism.
【図９】同要部の拡大縦断正面図である。FIG. 9 is an enlarged vertical sectional front view of the relevant part.
１０ 弦楽器 ２０ ヘッド部 ２１ 支壁 ２２ 支壁 ２３ 糸巻き空間 ２４ 基端側挿入孔 ２４１ スリーブ ２５ 未端側挿入孔 ２５′未端側挿入孔 ２５１ スリーブ ３０ 巻軸 ３１ 軸胴部 ３１′軸胴部 ３１１ 弦端係止孔 ３１２ 螺子孔 ３１３ 軸受取付部 ３１４ 固定用突起 ３１５ 取付溝 ３２ 係止部材 ３２′係止部材 ３２１ 環状面 ３２１′フランジ部 ３３ 調整螺子 ３３′雌螺子筒 ３４ 締付環 ３４１ スリット ３５ 摘み部 ３６ 軸受 ３６′軸受 ４０ 弦 DESCRIPTION OF SYMBOLS 10 Stringed musical instrument 20 Head part 21 Support wall 22 Support wall 23 Pin winding space 24 Base side insertion hole 241 Sleeve 25 Non-end side insertion hole 25 'Non-end side insertion hole 251 Sleeve 30 Winding shaft 31 Shaft trunk 31' Shaft trunk 311 String end locking hole 312 Screw hole 313 Bearing mounting portion 314 Fixing protrusion 315 Mounting groove 32 Locking member 32 'Locking member 321 Annular surface 321' Flange portion 33 Adjusting screw 33 'Female screw cylinder 34 Tightening ring 341 Slit 35 Knob 36 Bearing 36 'Bearing 40 String
Claims (6)
空間を介して設けられた平行一対の支壁に相互に連通す
る様に一対の挿入孔を設けると共にこの対の挿入孔を弦
展張方向に順次所望組数設け、上記一対の挿入孔は、そ
の一方を未端側挿入孔に、又他方を基端側挿入孔に作る
と共に、少なくとも基端側挿入孔はその口径が外側から
糸巻き空間側に向けて漸減縮小する様なテーパー孔に作
り、上記各対の挿入孔には、夫々巻軸を、該巻軸の先端
が上記未端側挿入孔に挿入される一方巻軸の軸胴部が上
記基端側挿入孔を挿通する様にして取付け、上記巻軸の
先端側には上記未端側挿入孔に係着すると共に巻軸を回
転自在に支承する係止部材を設け、上記巻軸の軸胴部は
上記基端側挿入孔に合致するテーパー面に形成すると共
に、このテーパー面部分には上記基端側挿入孔の口径の
減縮に伴って口径を減縮する締付環を取付け、上記巻軸
の先端側には、上記係止部材を支点として上記巻軸を軸
方向へ摺動せしめる外部操作可能な調整手段を設けた事
を特徴とする弦楽器用糸巻き機構。To form a stringed musical instrument head, a pair of insertion holes are provided so as to communicate with a pair of parallel support walls provided via a thread winding space, and the pair of insertion holes are arranged in the string extending direction. A desired number of pairs are sequentially provided, and one of the pair of insertion holes is formed as an uninserted insertion hole and the other is formed as a proximal insertion hole, and at least the proximal insertion hole has a diameter from the outside toward the winding space side. In each of the pair of insertion holes, a winding shaft is inserted, and the tip of the winding shaft is inserted into the non-end side insertion hole. Is mounted so as to pass through the base end side insertion hole, and a locking member is provided at the distal end side of the winding shaft, which is engaged with the non-end side insertion hole and rotatably supports the winding shaft. The shaft body of the shaft is formed on a tapered surface that matches the base side insertion hole, and the tapered surface is A tightening ring for reducing the diameter of the base-side insertion hole in accordance with the reduction of the diameter of the base-side insertion hole is attached to the portion. A string winding mechanism for a stringed instrument, wherein an externally operable adjusting means for moving the string is provided.
軸方向へは不動に外嵌されると共に、軸方向に延びるス
リットにより分断されている構成を特徴とする請求項１
記載の弦楽器用糸巻き機構。2. A structure in which the tightening ring is externally fitted to the shaft body of the winding shaft in the axial direction and is separated by a slit extending in the axial direction.
A thread winding mechanism for a stringed instrument as described in the above.
られた螺子孔内に螺合すると共に上記係止部材を支点と
して螺子孔との螺合度を変化出来る調整螺子である事を
特徴とする請求項１記載の弦楽器用糸巻き機構。3. An adjusting screw which is screwed into a screw hole provided at a tip of the winding shaft and which can change the degree of screwing with the screw hole by using the locking member as a fulcrum. The thread winding mechanism for a stringed musical instrument according to claim 1, wherein
られた螺子部に帽着螺合すると共に上記係止部材を支点
として螺子部との螺合度を変化出来る雌螺子筒である事
を特徴とする請求項１記載の弦楽器用糸巻き機構。4. The female screw cylinder, wherein the adjusting means is a female screw cylinder that can be screwed into a screw portion provided at the tip of the winding shaft and that can change the degree of screwing with the screw portion using the locking member as a fulcrum. The thread winding mechanism for a stringed musical instrument according to claim 1, wherein:
空間に向けて口径が漸減する様なテーパー孔に形成し、
上記巻軸の先端部は、断面が非円形の軸受取付部に構成
して、この軸受取付部に外面が円環状の軸受を密に外嵌
すると共に、該軸受には円環体の係止部材を回転自在に
外嵌し、上記係止部材は、その外面を上記未端側挿入孔
内において孔壁に係着する様、上記巻軸の軸胴部と反対
方向に口径が縮減するテーパー面に形成すると共に上記
軸受はその外面を上記係止部材と密合する様なテーパー
面に形成し、上記係止部材は、その縮小側端面に環状面
を形成して、これにより上記軸受を係着内包する様に構
成し、上記巻軸先端には軸方向に螺子孔を形成すると共
に、該螺子孔には上記軸受の外面に係着する調整螺子を
螺着した事を特徴とする請求項１記載の弦楽器用糸巻き
機構。5. An endless insertion hole is formed in a tapered hole whose diameter gradually decreases from the outside toward the thread winding space,
The leading end of the winding shaft is formed as a bearing mounting portion having a non-circular cross section, and an annular bearing whose outer surface is annularly tightly fitted to the bearing mounting portion, and an annular body is engaged with the bearing. The member is rotatably fitted to the outside, and the locking member has a taper whose diameter is reduced in a direction opposite to the shaft body of the winding shaft so that an outer surface thereof is engaged with a hole wall in the non-end side insertion hole. The bearing is formed on a tapered surface such that the outer surface of the bearing is in close contact with the locking member, and the locking member forms an annular surface on its reduced-side end surface, thereby forming the bearing. A screw hole is formed in the tip end of the winding shaft in the axial direction, and an adjusting screw to be engaged with an outer surface of the bearing is screwed into the screw hole. Item 3. A string winding mechanism for a stringed instrument according to Item 1.
れると共に開口縁に拡大状のフランジ部を備え、該フラ
ンジ部を上記未端側挿入孔の開口部に係着する様に構成
した事を特徴とする請求項１記載の弦楽器用糸巻き機
構。6. The locking member is formed in a cylindrical shape having an outer opening and has an enlarged flange portion at an opening edge, and the flange portion is engaged with the opening of the non-end side insertion hole. The thread winding mechanism for a stringed musical instrument according to claim 1, wherein the thread winding mechanism is configured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7348959A JP2802742B2 (en) | 1995-12-08 | 1995-12-08 | String winding mechanism for stringed instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7348959A JP2802742B2 (en) | 1995-12-08 | 1995-12-08 | String winding mechanism for stringed instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09160540A JPH09160540A (en) | 1997-06-20 |
| JP2802742B2 true JP2802742B2 (en) | 1998-09-24 |
Family
ID=18400550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7348959A Expired - Fee Related JP2802742B2 (en) | 1995-12-08 | 1995-12-08 | String winding mechanism for stringed instruments |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2802742B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001052233A1 (en) * | 2000-01-13 | 2001-07-19 | Gotoh Gut Co., Ltd. | Winding mechanism of stringed instrument, and winding device for stringed instrument forming the winding mechanism |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4959761B2 (en) * | 2008-08-21 | 2012-06-27 | 英之 安慶名 | Pincushion articulator |
| JP6250416B2 (en) * | 2014-01-31 | 2017-12-20 | 株式会社オクタゴン | String winding instrument and stringed instrument including the same |
| CN104751827A (en) * | 2015-04-19 | 2015-07-01 | 河北金音乐器集团有限公司 | String adjustment device for violins |
-
1995
- 1995-12-08 JP JP7348959A patent/JP2802742B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001052233A1 (en) * | 2000-01-13 | 2001-07-19 | Gotoh Gut Co., Ltd. | Winding mechanism of stringed instrument, and winding device for stringed instrument forming the winding mechanism |
| US6706956B1 (en) | 2000-01-13 | 2004-03-16 | Gotoh Gut Co., Ltd | Peg mechanism and peg for stringed instruments |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09160540A (en) | 1997-06-20 |
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