JP2010032008A - Flexible shaft coupling, and method of manufacturing the same - Google Patents

Flexible shaft coupling, and method of manufacturing the same Download PDF

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JP2010032008A
JP2010032008A JP2008196840A JP2008196840A JP2010032008A JP 2010032008 A JP2010032008 A JP 2010032008A JP 2008196840 A JP2008196840 A JP 2008196840A JP 2008196840 A JP2008196840 A JP 2008196840A JP 2010032008 A JP2010032008 A JP 2010032008A
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hub
groove
hub piece
piece
forming
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Mitsuo Kaneda
光夫 金田
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Nabeya Bi Tech KK
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Nabeya Bi Tech KK
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
    • F16D3/72—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members with axially-spaced attachments to the coupling parts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible shaft coupling that can be easily and cost-effectively manufactured and assembled owing to a simplified structure. <P>SOLUTION: First hub elements 13 and 14 are integrally formed at both ends of a coupling body 12 constituting the flexible shaft coupling 11. The first hub element 13 has a concave groove 13b in a flat portion 13a, and a second hub element 15 has a flat portion 15c at the bottom of a square groove 15b formed at a flat portion 15a. The concave groove 13b and the groove 15b form an insertion hole H in which a rotary shaft 18 is inserted. A flat portion 18a formed at the rotary shaft 18 is brought into flush-contact with the flat portion 15c of the groove 15b of the insertion hole H. In this state, when bolts 17 inserted in stepped holes 15d in the second hub element 15 are threaded to internal threads 13c formed at the first hub element 13, the first hub element 13 and the second hub element 15 clamp the rotary shaft 18 and inhibit the relative rotation of the rotary shaft 18 in the insertion hole H. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、例えばモータの出力軸の回転を、印刷機などの各種の装置の回転部材を支持する回転軸に伝達するための可撓軸継手及びその製造方法に関する。   The present invention relates to a flexible shaft joint for transmitting rotation of an output shaft of a motor, for example, to a rotating shaft that supports a rotating member of various apparatuses such as a printing press, and a manufacturing method thereof.

この種の可撓軸継手として、従来、図１４に示すものが提案されている。この可撓軸継手１１は、金属材料により一体に形成された継手本体１２の一端部に対し、半円盤状の第１ハブ片１３が一体に形成されている。前記第１ハブ片１３には半円盤状の第２ハブ片１５が接離可能に対応され、両ハブ片１３，１５によってハブが構成されている。第１ハブ片１３及び第２ハブ片１５の対向する平面部１３ａ，１５ａには半円筒状の円弧溝１３ｂ，１５ｂ' が形成され、両円弧溝１３ｂ，１５ｂ' によって軸の挿入孔Ｈが形成されている。前記第２ハブ片１５には段付孔１５ｄが二箇所に形成され、該孔１５ｄに挿入されたボルト１７を前記第１ハブ片１３に形成した雌ネジ１３ｃに螺合することによって、前記第１ハブ片１３に第２ハブ片１５が連結されるようになっている。前記第２ハブ片１５には、ロックボルト２５の挿入孔１５ｅ及び雌ネジ１５ｆが形成されている。   As this type of flexible shaft joint, one shown in FIG. 14 has been proposed. In the flexible shaft joint 11, a semi-disc-shaped first hub piece 13 is integrally formed with one end portion of a joint body 12 formed integrally with a metal material. A semi-disc-shaped second hub piece 15 is detachably connected to the first hub piece 13, and the hub piece 13, 15 constitutes a hub. Semi-cylindrical arc grooves 13b and 15b 'are formed in the opposed flat surface portions 13a and 15a of the first hub piece 13 and the second hub piece 15, and an insertion hole H of the shaft is formed by both arc grooves 13b and 15b'. Has been. The second hub piece 15 is formed with two stepped holes 15d, and the bolt 17 inserted into the hole 15d is screwed into the female screw 13c formed in the first hub piece 13, whereby the first hub piece 15 is The second hub piece 15 is connected to the first hub piece 13. The second hub piece 15 is formed with an insertion hole 15e for the lock bolt 25 and a female screw 15f.

例えば、モータの回転軸１８を前記挿入孔Ｈに挿入した状態で、回転軸１８の外周面に形成された平面部１８ａに前記雌ネジ１５ｆに螺合したロックボルト２５の先端面を押圧することにより第１ハブ片１３の円弧溝１３ｂに回転軸１８を押圧して第１及び第２ハブ片１３，１５に回転軸１８が連結されるようになっている。継手本体１２の他端部に形成された第１ハブ片１４及び該第１ハブ片１４と対応する第２ハブ片１６も、前述した第１ハブ片１３及び第２ハブ片１５と同様に構成され、平面部１９ａを有する回転軸１９が連結されるようになっている。   For example, in a state where the rotating shaft 18 of the motor is inserted into the insertion hole H, the front end surface of the lock bolt 25 that is screwed into the female screw 15f is pressed into the flat surface portion 18a formed on the outer peripheral surface of the rotating shaft 18. Thus, the rotary shaft 18 is pressed against the arc groove 13b of the first hub piece 13 so that the rotary shaft 18 is connected to the first and second hub pieces 13 and 15. The first hub piece 14 formed at the other end of the joint body 12 and the second hub piece 16 corresponding to the first hub piece 14 are also configured in the same manner as the first hub piece 13 and the second hub piece 15 described above. Thus, the rotary shaft 19 having the flat surface portion 19a is connected.

ところが、上記従来の可撓軸継手１１は、回転軸１８の挿入孔Ｈが円筒形になっていたので、第２ハブ片１５に挿入孔１５ｅ及び雌ネジ１５ｆを形成するとともに、ロックボルト２５を用いて、回転軸１８を可撓軸継手に連結する必要がある。このため、継手１１の構造が複雑になって、製造及び組付け作業が面倒で、コストを低減することができないという問題があった。   However, in the conventional flexible shaft coupling 11, the insertion hole H of the rotary shaft 18 has a cylindrical shape, so that the insertion hole 15 e and the female screw 15 f are formed in the second hub piece 15, and the lock bolt 25 is attached. In use, it is necessary to connect the rotary shaft 18 to the flexible shaft joint. For this reason, there has been a problem that the structure of the joint 11 becomes complicated, the manufacturing and assembly work is troublesome, and the cost cannot be reduced.

本発明は、上記従来の技術に存する問題点を解消して、構造を簡素化して、製造及び組付作業を容易に行いコストを低減することができる可撓軸継手を提供することにある。   An object of the present invention is to provide a flexible shaft coupling that eliminates the problems in the prior art, simplifies the structure, facilitates manufacturing and assembling operations, and reduces costs.

上記問題点を解決するために、請求項１に記載の発明は、可撓軸継手の継手本体の両端部に半円盤状の第１ハブ片をそれぞれ連結し、前記両第１ハブ片とそれぞれ対応して半円盤状の第２ハブ片を備え、前記第１ハブ片と第２ハブ片とにより軸の連結用のハブを構成し、該ハブの中心部に前記軸の挿入孔を形成し、前記第１ハブ片に形成した雌ネジ又は段付孔と、第２ハブ片に形成した段付孔又は雌ネジの前記段付孔から雌ネジに螺合されるボルトにより前記挿入孔に挿入された軸を締め付け固定するようにした可撓軸継手において、前記第１ハブ片の平面部の中央部に前記挿入孔を形成するための溝を形成し、第２ハブ片の平面部の中央部に対し、前記挿入孔を形成するための溝を形成し、前記第１ハブ片側の溝及び第２ハブ片側の溝の少なくとも一方の溝の底面に対し、前記軸の外周面に形成された平面部を平面接触させるための平面部を形成したことを要旨とする。   In order to solve the above-mentioned problems, the invention according to claim 1 is characterized in that a semi-disc-shaped first hub piece is connected to both ends of the joint body of the flexible shaft joint, respectively, and both the first hub pieces are respectively connected. Correspondingly, a semi-disc-shaped second hub piece is provided, and the first hub piece and the second hub piece constitute a hub for connecting shafts, and an insertion hole for the shaft is formed at the center of the hub. The female screw or stepped hole formed in the first hub piece and the stepped hole or female screw formed in the second hub piece are inserted into the insertion hole by a bolt screwed into the female screw. In the flexible shaft joint adapted to fasten and fix the formed shaft, a groove for forming the insertion hole is formed in a central portion of the flat portion of the first hub piece, and a central portion of the flat portion of the second hub piece is formed. A groove for forming the insertion hole is formed in the portion, and there are few grooves on the first hub piece side and the groove on the second hub piece side. Kutomo to the bottom surface of one of the grooves, and summarized in that was formed flat portion for a plane contacting the flat portion formed on the outer peripheral surface of the shaft.

請求項２に記載の発明は、請求項１において、前記第２ハブ片の溝は、凹状溝であって、その底面に平面部が形成されていることを要旨とする。
請求項３に記載の発明は、請求項１又は２において、前記第１ハブ片の溝は、凹状溝であって、その底面に平面部が形成されていることを要旨とする。 The invention according to claim 2 is summarized in that, in claim 1, the groove of the second hub piece is a concave groove, and a flat surface portion is formed on the bottom surface thereof.
A third aspect of the present invention is summarized in that, in the first or second aspect, the groove of the first hub piece is a concave groove, and a flat portion is formed on a bottom surface thereof.

請求項４に記載の発明は、請求項１〜３のいずれか１項において、前記継手本体は、金属材料により円筒状に一体に形成されるとともに、該継手本体の外周面には、複数の変形用割溝が継手本体の軸線と直交する方向に所定深さに形成され、各変形用割溝は継手本体の周方向に位相を相違させて形成されていることを要旨とする。   According to a fourth aspect of the present invention, in any one of the first to third aspects, the joint body is integrally formed of a metal material in a cylindrical shape, and a plurality of joint bodies are formed on the outer peripheral surface of the joint body. The gist is that the deformation dividing grooves are formed at a predetermined depth in a direction orthogonal to the axis of the joint body, and each of the deformation dividing grooves is formed with a phase difference in the circumferential direction of the joint body.

請求項５に記載の発明は、円柱状をなす第１素材の中心部に対し、軸線方向に貫通する円筒状の貫通孔を形成する工程と、第１素材の両端部をそれぞれ半円盤状に切り欠いて二つの第１ハブ片を形成する工程と、両第１ハブ片に形成された半円筒状の円弧溝の両側に連なる二つの平面部に雌ネジ又は段付孔をそれぞれ互いに平行に形成する工程と、第１素材の外周面に対し該素材の軸線と直交する方向に、かつ素材の周方向に位相を相違させて複数の変形用割溝を所定深さに形成する工程とにより継手本体及び二つの第１ハブ片を製造し、一方、円柱状をなす第２素材の外周面に対し、一対の互に平行な段付孔又は雌ネジを、該第２素材の軸線と直交し、かつ軸線から所定距離離れた位置において互いに平行に形成する工程と、第２素材を、該素材の軸線を通り、かつ前記段付孔又は雌ネジの軸線と直交する平面に沿って半円形に切断する工程と、第２素材を、該素材の軸線と直交する平面に沿って切断して第２ハブ片原形を製造する工程と、第２ハブ片原形の平面部の中央部に凹状溝を形成し、該溝の底面に平面部を形成する工程とにより第２ハブ片を製造することを要旨とする。   The invention according to claim 5 is the step of forming a cylindrical through-hole penetrating in the axial direction with respect to the central portion of the first material having a columnar shape, and the both end portions of the first material in a semi-disc shape. A step of forming two first hub pieces by notching, and a female screw or a stepped hole in parallel with each other in two flat portions connected to both sides of the semi-cylindrical arc grooves formed in the first hub pieces. And a step of forming a plurality of split grooves for deformation at a predetermined depth in a direction perpendicular to the axis of the material with respect to the outer peripheral surface of the first material and in a phase difference in the circumferential direction of the material. A joint body and two first hub pieces are manufactured. On the other hand, a pair of mutually parallel stepped holes or female screws are perpendicular to the axis of the second material with respect to the outer peripheral surface of the cylindrical second material. And forming the second material in parallel with each other at a position away from the axis by a predetermined distance, Cutting the semi-circular shape along a plane that passes through the axis of the material and is orthogonal to the axis of the stepped hole or the female screw, and cuts the second material along a plane that is orthogonal to the axis of the material A second hub piece is manufactured by a step of manufacturing the original shape of the second hub piece and a step of forming a concave groove in the center of the flat portion of the second hub piece original shape and forming the flat portion on the bottom surface of the groove. Is the gist.

（作用）
この発明は第２ハブ片の溝の底面に平面部が形成されているので、回転軸の先端部をハブの挿入孔に挿入した状態で、回転軸の外周面に形成された平面部が前記溝の平面部に平面接触される。このため、ハブの挿入孔内における回転軸の相対回転が阻止される。従って、回転軸とハブとの相対回転を阻止するためのクランプボルトが不要となり、該ボルトを第２ハブ片に螺合するために雌ネジを形成する必要もなくなり、可撓軸継手の構造が簡素化される。 (Function)
In the present invention, since the flat surface portion is formed on the bottom surface of the groove of the second hub piece, the flat surface portion formed on the outer peripheral surface of the rotating shaft is inserted into the insertion hole of the hub. Plane contact is made with the flat portion of the groove. For this reason, relative rotation of the rotating shaft in the insertion hole of the hub is prevented. Accordingly, a clamp bolt for preventing relative rotation between the rotating shaft and the hub is not required, and it is not necessary to form a female screw for screwing the bolt to the second hub piece. Simplified.

本発明によれば、可撓軸継手の構造を簡素化して、製造及び組付作業を容易に行いコストを低減することができる。   According to the present invention, the structure of the flexible shaft coupling can be simplified, and the manufacturing and assembling work can be easily performed and the cost can be reduced.

以下、本発明を具体化した可撓軸継手の一実施形態を図１〜図１２にしたがって説明する。
図２に示すように、可撓軸継手１１の円筒状をなす継手本体１２の中心部には円筒状の貫通孔１２ａが本体１２の軸線方向に貫通形成されている。継手本体１２にはその外周面から軸線と直交する平面に沿って変形用割溝１２ｂが複数箇所に形成されている。各変形用割溝１２ｂは継手本体１２の円周方向に例えば３０°〜９０°順次位相をずらして形成されている。前記各変形用割溝１２ｂによって継手本体１２には図４に示すように伝達用肉部１２ｃが複数箇所に形成されている。前記変形用割溝１２ｂ及び伝達用肉部１２ｃによって前記継手本体１２がその軸線を屈曲する方向に弾性変形するようになっている。 Hereinafter, an embodiment of a flexible shaft joint embodying the present invention will be described with reference to FIGS.
As shown in FIG. 2, a cylindrical through hole 12 a is formed in the axial direction of the main body 12 in the center portion of the joint main body 12 that forms the cylindrical shape of the flexible shaft joint 11. The joint body 12 is formed with a plurality of split grooves 12b for deformation along a plane perpendicular to the axis from the outer peripheral surface thereof. Each of the dividing grooves for deformation 12b is formed in the circumferential direction of the joint main body 12 by sequentially shifting the phase, for example, by 30 ° to 90 °. As shown in FIG. 4, a transmission meat portion 12 c is formed at a plurality of locations in the joint main body 12 by the deformation dividing grooves 12 b. The joint body 12 is elastically deformed in the direction of bending the axis thereof by the deformation dividing groove 12b and the transmission meat portion 12c.

図２に示すように、前記継手本体１２の一端面には半円盤状の第１ハブ片１３が一体に形成され、その平面部１３ａの中央部には半円筒状の円弧溝１３ｂが形成されている。前記平面部１３ａには、雌ネジ１３ｃが二箇所に互に平行に形成されている。前記継手本体１２の他端面には半円盤状の第１ハブ片１４が一体に形成され、その平面部１４ａの中央部には半筒状の円弧溝１４ｂが形成されている。前記平面部１４ａには雌ネジ１４ｃが二箇所に互いに平行に形成されている。   As shown in FIG. 2, a semi-disc-shaped first hub piece 13 is integrally formed on one end face of the joint body 12, and a semi-cylindrical arc groove 13b is formed at the center of the flat surface portion 13a. ing. On the flat surface portion 13a, female screws 13c are formed in parallel to each other at two locations. A semi-disc-shaped first hub piece 14 is integrally formed on the other end surface of the joint body 12, and a semi-cylindrical arc groove 14b is formed at the center of the flat surface portion 14a. Female screws 14c are formed at two locations on the plane portion 14a in parallel with each other.

図２に示すように、前記第１ハブ片１３に対応する半円盤状の第２ハブ片１５の平面部１５ａの中央部には前記円弧溝１３ｂと対応するように凹状の溝１５ｂが形成されている。溝１５ｂの底面には平面部１５ｃが形成されている。前記第２ハブ片１５には前記２つの平面部１５ａにそれぞれ貫通するとともに、円弧面に貫通する二つの段付孔１５ｄが互に平行に形成されている。同様に、前記第１ハブ片１４と対応する半円盤状の第２ハブ片１６の平面部１６ａの中央部には凹状の溝１６ｂが形成されている。溝１６ｂの底面には平面部１６ｃが形成されている。前記第２ハブ片１６には前記２つの平面部１６ａにそれぞれ貫通するとともに、円弧面に貫通する二つの段付孔１６ｄが互に平行に形成されている。前記第１ハブ片１３（１４）及び第２ハブ片１５（１６）によって、図１に示すようにドーナッツ状のハブＦが形成されている。   As shown in FIG. 2, a concave groove 15b is formed at the center of the flat portion 15a of the semi-disc-shaped second hub piece 15 corresponding to the first hub piece 13 so as to correspond to the arc groove 13b. ing. A flat portion 15c is formed on the bottom surface of the groove 15b. The second hub piece 15 is formed with two stepped holes 15d penetrating the two flat portions 15a and penetrating the arcuate surface in parallel with each other. Similarly, a concave groove 16b is formed at the center of the flat portion 16a of the semi-disc-shaped second hub piece 16 corresponding to the first hub piece 14. A flat portion 16c is formed on the bottom surface of the groove 16b. The second hub piece 16 is formed with two stepped holes 16d penetrating through the two flat portions 16a and penetrating through the arc surface in parallel with each other. The doughnut-shaped hub F is formed by the first hub piece 13 (14) and the second hub piece 15 (16) as shown in FIG.

前記第２ハブ片１５（１６）は、前記段付孔１５ｄ（１６ｄ）にそれぞれ貫通されるボルト１７を、前記雌ネジ１３ｃ（１４ｃ）にそれぞれ螺合することによって、第１ハブ片１３（１４）に連結されるようになっている。前記第１ハブ片１３の円弧溝１３ｂと、第２ハブ片１５の凹状の溝１５ｂとによって、例えばモータの回転軸１８を挿入する挿入孔Ｈが形成されている。同様に第１ハブ片１４の円弧溝１４ｂと、第２ハブ片１６の凹状の溝１６ｂとによって、例えば印刷機のインキローラーを回転させる回転軸１９を挿入する挿入孔が形成されている。   The second hub piece 15 (16) is screwed into the female screw 13c (14c) with bolts 17 respectively penetrating through the stepped holes 15d (16d), thereby the first hub piece 13 (14). ). The arcuate groove 13b of the first hub piece 13 and the concave groove 15b of the second hub piece 15 form an insertion hole H into which, for example, the rotating shaft 18 of the motor is inserted. Similarly, the circular arc groove 14b of the first hub piece 14 and the concave groove 16b of the second hub piece 16 form an insertion hole for inserting a rotating shaft 19 for rotating an ink roller of a printing press, for example.

前記回転軸１８，１９の外周面には図１に示すように平面部１８ａ，１９ａが形成されている。前記回転軸１８の平面部１８ａは図３に示すように前記第２ハブ片１５の溝１５ｂの平面部１５ｃに平面接触されるようにしている。前記第１ハブ片１３に前記第２ハブ片１５がボルト１７によって締め付け固定された状態で、第１ハブ片１３の平面部１３ａと、第２ハブ片１５の平面部１５ａとの間にわずかな隙間ｇが形成されるようになっている。そして、前記回転軸１８が挿入孔Ｈに挿入された状態で、前記ボルト１７によって第１ハブ片１３及び第２ハブ片１５に締め付け力が付与されると、回転軸１８の平面部１８ａが第２ハブ片１５の溝１５ｂの平面部１５ｃに平面接触されて、挿入孔Ｈ内で回転軸１８が相対回転しないようにクランプされる。同様に、第１ハブ片１４の円弧溝１４ｂと第２ハブ片１６の溝１６ｂとによって形成された挿入孔に回転軸１９が挿入された状態で、第１ハブ片１４と第２ハブ片１６によって回転軸１９がクランプされるとともに、回転軸１９が挿入孔内で相対回転しないようになっている。   As shown in FIG. 1, flat portions 18a and 19a are formed on the outer peripheral surfaces of the rotary shafts 18 and 19, respectively. As shown in FIG. 3, the flat portion 18a of the rotating shaft 18 is brought into flat contact with the flat portion 15c of the groove 15b of the second hub piece 15. In a state where the second hub piece 15 is fastened and fixed to the first hub piece 13 by a bolt 17, there is a slight gap between the flat surface portion 13 a of the first hub piece 13 and the flat surface portion 15 a of the second hub piece 15. A gap g is formed. When a tightening force is applied to the first hub piece 13 and the second hub piece 15 by the bolt 17 in a state where the rotary shaft 18 is inserted into the insertion hole H, the flat surface portion 18a of the rotary shaft 18 is 2 The flat surface 15c of the groove 15b of the hub piece 15 is brought into plane contact, and the rotary shaft 18 is clamped in the insertion hole H so as not to rotate relatively. Similarly, the first hub piece 14 and the second hub piece 16 in a state where the rotary shaft 19 is inserted into the insertion hole formed by the arc groove 14b of the first hub piece 14 and the groove 16b of the second hub piece 16. As a result, the rotary shaft 19 is clamped and the rotary shaft 19 does not rotate relative to the insertion hole.

前記のように構成された可撓軸継手１１を用いて図４に示すように例えばモータの回転軸１８の回転を印刷機のインキローラの回転軸１９に伝達することができる。
次に、前記のように構成された可撓軸継手１１の製造方法について説明する。 Using the flexible shaft joint 11 configured as described above, for example, the rotation of the rotating shaft 18 of the motor can be transmitted to the rotating shaft 19 of the ink roller of the printing press as shown in FIG.
Next, a method for manufacturing the flexible shaft joint 11 configured as described above will be described.

最初に、図５に示すように、円柱状をなす第１素材２１の中心部にドリルによって円筒状の貫通孔１２ａを形成する。次に、図５に二点鎖線で示すように前記第１素材２１の両端部に前記貫通孔１２ａの中心軸線Ｏを通る平面Ｓ１及び前記中心軸線Ｏと直交する平面Ｓ２に沿って切り込みを入れて、図６に示すよう第１素材２１の両端部に切り欠き凹部２１ａを形成する。この切り欠き凹部２１ａによって第１素材２１の両端部に第１ハブ片１３，１４の原形が形成される。この第１ハブ片１３，１４の原形に雌ネジ１３ｃ，１４ｃを形成する。さらに、図７に示すように、前記継手本体１２の外周面に前記変形用割溝１２ｂ及び伝達用肉部１２ｃを複数箇所に形成することによって継手本体１２及び第１ハブ片１３，１４の製造が完了する。   First, as shown in FIG. 5, a cylindrical through-hole 12 a is formed by a drill in the center of the columnar first material 21. Next, as shown by a two-dot chain line in FIG. 5, cuts are made at both ends of the first material 21 along a plane S1 passing through the central axis O of the through hole 12a and a plane S2 orthogonal to the central axis O. Thus, as shown in FIG. The original shape of the first hub pieces 13 and 14 is formed at both ends of the first material 21 by the notched recess 21a. Female screws 13c and 14c are formed on the original form of the first hub pieces 13 and 14, respectively. Further, as shown in FIG. 7, the joint body 12 and the first hub pieces 13, 14 are manufactured by forming the deformation dividing grooves 12 b and the transmission meat portions 12 c at a plurality of locations on the outer peripheral surface of the joint body 12. Is completed.

次に、図８〜図１２に基づいて、前記第２ハブ片１５，１６の製造方法について説明する。
最初に、図８に示すように、円柱状の第２素材２２に対しドリルによって互いに平行な段付孔１５ｄを形成する。この作業は、最初に、第２素材２２に対し図９に示すように、小径寸法の貫通孔２２ａを形成する。次に、図１０に示すように貫通孔２２ａの上部及び下部に大径寸法の孔２２ｂを形成する。このようにして、二つの第２ハブ片１５，１６となる第２素材２２に段付孔１５ｄ，１６ｄが形成される。 Next, a method for manufacturing the second hub pieces 15 and 16 will be described with reference to FIGS.
First, as shown in FIG. 8, stepped holes 15 d that are parallel to each other are formed by drilling on the cylindrical second material 22. In this operation, first, as shown in FIG. 9, a small-diameter through hole 22 a is formed in the second material 22. Next, as shown in FIG. 10, large-diameter holes 22b are formed above and below the through-holes 22a. In this way, the stepped holes 15d and 16d are formed in the second material 22 that becomes the two second hub pieces 15 and 16.

次に、図８及び図１０に示すように、第２素材２２の中心軸線Ｏを通り、かつ前記貫通孔２２ａの中心軸線Ｏ１に直交する平面Ｓ１に沿って第２素材２２に切り込みを入れた後、前記第２素材２２の中心軸線Ｏと直交する平面Ｓ２に沿って第２素材２２を切断して、図１１に示すように第２ハブ片１５，１６の原形１５' ，１６' を製造する。次に、前記原形１５' ，１６' の平面部１５ａ（１６ａ）に凹状の溝１５ｂ（１６ｂ）を形成する。   Next, as shown in FIGS. 8 and 10, the second material 22 is cut along a plane S1 that passes through the central axis O of the second material 22 and is orthogonal to the central axis O1 of the through hole 22a. Thereafter, the second material 22 is cut along a plane S2 orthogonal to the central axis O of the second material 22 to produce the original shapes 15 ′, 16 ′ of the second hub pieces 15, 16 as shown in FIG. To do. Next, a concave groove 15b (16b) is formed in the flat surface portion 15a (16a) of the original shapes 15 'and 16'.

このようにして、第２ハブ片１５（１６）が製造される。第２ハブ片１５，１６の製造に際して、第１素材２１とは別の第２素材２２を用いる理由について以下に説明する。図５及び図６に示す工程で第１素材２１に切り欠き凹部２１ａを形成する際に得られた半円盤状の部材（図５の平面Ｓ１，Ｓ２に沿って切断された部材）には、円弧溝１３ｂが形成される。この円弧溝１３ｂを第２ハブ片１５の溝１５ｂと同様に凹状の溝に変形した場合に、図３に鎖線で示すように第２ハブ片１５の凹状の溝１５ｂの深さ寸法が大きくなり過ぎて、回転軸１８の平面部１８ａに平面部１５ｃが接触しないからである。   In this way, the second hub piece 15 (16) is manufactured. The reason why the second material 22 different from the first material 21 is used in manufacturing the second hub pieces 15 and 16 will be described below. In the process shown in FIG. 5 and FIG. 6, the semi-disc shaped member (member cut along the planes S <b> 1 and S <b> 2 in FIG. 5) obtained when forming the cutout recess 21 a in the first material 21 includes An arc groove 13b is formed. When this arcuate groove 13b is deformed into a concave groove like the groove 15b of the second hub piece 15, the depth dimension of the concave groove 15b of the second hub piece 15 increases as shown by the chain line in FIG. This is because the flat portion 15 c does not contact the flat portion 18 a of the rotating shaft 18.

上記実施形態の可撓軸継手１１によれば、以下のような効果を得ることができる。
（１）上記実施形態では、第２ハブ片１５，１６の平面部１５ａ，１６ａの中央部に凹状の溝１５ｂ，１６ｂを形成し、この底面に平面部１５ｃ，１６ｃを形成し、この平面部１５ｃ，１６ｃに対し回転軸１８，１９の平面部１８ａ，１９ａを平面接触させるようにした。このため、挿入孔Ｈ内で回転軸１８，１９が相対回転するの防止することができ、相対回転を防止するために前記第２ハブ片１５，１６にロックボルトを螺合して、回転軸１８，１９の平面部１８ａ，１９ａに押圧する構成を省略することができる。この結果、可撓軸継手１１の構造を簡素化して、部品点数を低減し、製造及び組付作業を容易に行い、コストの低減を図ることができる。 According to the flexible shaft coupling 11 of the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the concave grooves 15b and 16b are formed in the center of the flat portions 15a and 16a of the second hub pieces 15 and 16, and the flat portions 15c and 16c are formed on the bottom surface. The flat portions 18a and 19a of the rotary shafts 18 and 19 are brought into plane contact with 15c and 16c. For this reason, the rotation shafts 18 and 19 can be prevented from rotating relative to each other in the insertion hole H. In order to prevent relative rotation, a lock bolt is screwed into the second hub pieces 15 and 16 to rotate the rotation shaft. The structure which presses against the flat portions 18a and 19a of the 18 and 19 can be omitted. As a result, the structure of the flexible shaft joint 11 can be simplified, the number of parts can be reduced, manufacturing and assembling operations can be easily performed, and cost can be reduced.

（２）上記実施形態では、図８〜図１２に示すように第２素材２２を用いて第２ハブ片１５，１６を製造するようにしたので、第２ハブ片１５，１６に対し凹状の溝１５ｂ，１６ｂを容易に形成することができる。   (2) In the above embodiment, since the second hub pieces 15 and 16 are manufactured using the second material 22 as shown in FIGS. 8 to 12, the second hub pieces 15 and 16 are concave. The grooves 15b and 16b can be easily formed.

なお、上記実施形態は以下のように変更してもよい。
・図１３（ａ）、（ｂ）に示すように、第２ハブ片１５，１６の溝１５ｂ，１６ｂの形状を変更してもよい。 In addition, you may change the said embodiment as follows.
-As shown to Fig.13 (a), (b), you may change the shape of the grooves 15b and 16b of the 2nd hub pieces 15 and 16. FIG.

・図示しないが、前記各実施形態において、前記第１ハブ片１３，１４の円弧溝１３ｂ，１４ｂに代えて、第２ハブ片１５の溝１５ｂと同様の凹状の溝を形成し、該溝の底面に形成された平面部に対し、回転軸１８，１９の平面部１８ａ，１９ａが平面接触されるようにしてもよい。   Although not shown in the drawings, in each of the above embodiments, a concave groove similar to the groove 15b of the second hub piece 15 is formed instead of the arc grooves 13b, 14b of the first hub pieces 13, 14, and the grooves The plane portions 18a and 19a of the rotary shafts 18 and 19 may be brought into plane contact with the plane portion formed on the bottom surface.

・図示しないが、第２ハブ片１５，１６の溝１５ｂ，１６ｂを円弧溝１３ｂと同様の円弧溝とし、前記第１ハブ片１３，１４の円弧溝１３ｂ，１４ｂに代えて、第２ハブ片１５の溝１５ｂと同様の凹状の溝を形成し、該溝の底面に形成された平面部に対し、回転軸１８，１９の平面部１８ａ，１９ａが平面接触されるようにしてもよい。   Although not shown, the grooves 15b and 16b of the second hub pieces 15 and 16 are arc grooves similar to the arc grooves 13b, and the second hub pieces are replaced with the arc grooves 13b and 14b of the first hub pieces 13 and 14. A concave groove similar to the 15 grooves 15b may be formed, and the flat portions 18a and 19a of the rotary shafts 18 and 19 may be brought into plane contact with the flat portion formed on the bottom surface of the groove.

・図示しないが、継手本体１２の変形用割溝１２ｂ及び伝達用肉部１２ｃを省略して、継手本体１２を二つのハブユニットに分割し、両ハブユニットの間に合成ゴム製の弾性体を一体にモールドして両ハブユニットを連結した可撓軸継手に具体化してもよい。   Although not shown, the split groove 12b and the transmission meat portion 12c of the joint body 12 are omitted, the joint body 12 is divided into two hub units, and an elastic body made of synthetic rubber is provided between the two hub units. You may embody in the flexible shaft coupling which molded integrally and connected both hub units.

・前記第１ハブ片１３，１４に段付孔を形成し、前記第２ハブ片１５，１６に雌ネジを形成してもよい。   A stepped hole may be formed in the first hub pieces 13 and 14 and a female screw may be formed in the second hub pieces 15 and 16.

この発明の可撓軸継手を具体化した１実施形態を示す斜視図。The perspective view which shows one Embodiment which actualized the flexible shaft coupling of this invention. 可撓軸継手の分解斜視図。The disassembled perspective view of a flexible shaft coupling. 可撓軸継手に回転軸を挿入してクランプした状態を示す横断面図。The cross-sectional view which shows the state which inserted and clamped the rotating shaft in the flexible shaft coupling. 可撓軸継手に回転軸を挿入してクランプした状態を示す縦断面図。The longitudinal cross-sectional view which shows the state which inserted and clamped the rotating shaft in the flexible shaft coupling. 継手本体及び第１ハブ片を製造するための第１素材を示す斜視図。The perspective view which shows the 1st raw material for manufacturing a coupling main body and a 1st hub piece. 継手本体及び第１ハブ片の製造方法を説明するための斜視図。The perspective view for demonstrating the manufacturing method of a coupling main body and a 1st hub piece. 継手本体及び第１ハブ片の製造方法を説明するための斜視図。The perspective view for demonstrating the manufacturing method of a coupling main body and a 1st hub piece. 第２ハブ片の製造方法を説明するための斜視図。The perspective view for demonstrating the manufacturing method of a 2nd hub piece. 第２ハブ片の製造方法を説明するための横断面図。The cross-sectional view for demonstrating the manufacturing method of a 2nd hub piece. 第２ハブ片の製造方法を説明するための横断面図。The cross-sectional view for demonstrating the manufacturing method of a 2nd hub piece. 第２ハブ片の製造工程の途中を示す斜視図。The perspective view which shows the middle of the manufacturing process of a 2nd hub piece. 第２ハブ片の最終の製造工程を示す斜視図。The perspective view which shows the last manufacturing process of a 2nd hub piece. （ａ）（ｂ）は、この発明の可撓軸継手の別の実施形態を示す端面図。(A) (b) is an end elevation which shows another embodiment of the flexible shaft coupling of this invention. 従来の可撓軸継手の斜視図。The perspective view of the conventional flexible shaft coupling.

符号の説明Explanation of symbols

Ｆ…ハブ、Ｈ…挿入孔、Ｓ１，Ｓ２…平面、１１…可撓軸継手、１２…継手本体、１２ａ，２２ａ…貫通孔、１２ｂ…変形用割溝、１３，１４…第１ハブ片、１３ａ，１４ａ，１５ａ，１５ｃ，１６ａ，１６ｃ，１８ａ，１９ａ…平面部、１３ｂ，１４ｂ…円弧溝、１３ｃ，１４ｃ…雌ネジ、１５，１６…第２ハブ片、１５ｂ…溝、１５ｄ，１６ｄ…段付孔、１７…ボルト、２１…第１素材、２２…第２素材。   F: Hub, H: Insertion hole, S1, S2: Plane, 11 ... Flexible shaft joint, 12 ... Joint body, 12a, 22a ... Through hole, 12b ... Split groove for deformation, 13, 14 ... First hub piece, 13a, 14a, 15a, 15c, 16a, 16c, 18a, 19a ... plane part, 13b, 14b ... arc groove, 13c, 14c ... female screw, 15, 16 ... second hub piece, 15b ... groove, 15d, 16d ... Stepped holes, 17 ... bolts, 21 ... first material, 22 ... second material.

Claims (5)

可撓軸継手の継手本体の両端部に半円盤状の第１ハブ片をそれぞれ連結し、前記両第１ハブ片とそれぞれ対応して半円盤状の第２ハブ片を備え、前記第１ハブ片と第２ハブ片とにより軸の連結用のハブを構成し、該ハブの中心部に前記軸の挿入孔を形成し、前記第１ハブ片に形成した雌ネジ又は段付孔と、第２ハブ片に形成した段付孔又は雌ネジの前記段付孔から雌ネジに螺合されるボルトにより前記挿入孔に挿入された軸を締め付け固定するようにした可撓軸継手において、
前記第１ハブ片の平面部の中央部に前記挿入孔を形成するための溝を形成し、第２ハブ片の平面部の中央部に対し、前記挿入孔を形成するための溝を形成し、前記第１ハブ片側の溝及び第２ハブ片側の溝の少なくとも一方の溝の底面に対し、前記軸の外周面に形成された平面部を平面接触させるための平面部を形成したことを特徴とする可撓軸継手。 A semi-disc-shaped first hub piece is connected to both ends of the joint body of the flexible shaft joint, and a semi-disc-like second hub piece is provided corresponding to each of the first hub pieces, and the first hub is provided. A hub for connecting the shaft is constituted by the piece and the second hub piece, an insertion hole for the shaft is formed at the center of the hub, a female screw or a stepped hole formed in the first hub piece, In the flexible shaft joint, the shaft inserted into the insertion hole is fastened and fixed by a bolt screwed into the female screw from the stepped hole formed in the hub piece or the female screw.
A groove for forming the insertion hole is formed in the central portion of the flat portion of the first hub piece, and a groove for forming the insertion hole is formed in the central portion of the flat portion of the second hub piece. In addition, a planar portion for planarly contacting the planar portion formed on the outer peripheral surface of the shaft with respect to the bottom surface of at least one of the groove on the first hub piece side and the groove on the second hub piece side is formed. A flexible shaft joint. 請求項１において、前記第２ハブ片の溝は、凹状溝であって、その底面に平面部が形成されていることを特徴とする可撓軸継手。 The flexible shaft coupling according to claim 1, wherein the groove of the second hub piece is a concave groove, and a flat portion is formed on a bottom surface thereof. 請求項１又は２において、前記第１ハブ片の溝は、凹状溝であって、その底面に平面部が形成されていることを特徴とする可撓軸継手。 3. The flexible shaft coupling according to claim 1, wherein the groove of the first hub piece is a concave groove, and a flat surface portion is formed on a bottom surface thereof. 請求項１〜３のいずれか１項において、前記継手本体は、金属材料により円筒状に一体に形成されるとともに、該継手本体の外周面には、複数の変形用割溝が継手本体の軸線と直交する方向に所定深さに形成され、各変形用割溝は継手本体の周方向に位相を相違させて形成されていることを特徴とする可撓軸継手。 The joint body according to any one of claims 1 to 3, wherein the joint body is integrally formed of a metal material in a cylindrical shape, and a plurality of split grooves for deformation are formed on an outer peripheral surface of the joint body. The flexible shaft coupling is characterized in that each split groove for deformation is formed with a phase difference in the circumferential direction of the joint body. 円柱状をなす第１素材の中心部に対し、軸線方向に貫通する円筒状の貫通孔を形成する工程と、
第１素材の両端部をそれぞれ半円盤状に切り欠いて二つの第１ハブ片を形成する工程と、
両第１ハブ片に形成された半円筒状の円弧溝の両側に連なる二つの平面部に雌ネジ又は段付孔をそれぞれ互いに平行に形成する工程と、
第１素材の外周面に対し該素材の軸線と直交する方向に、かつ素材の周方向に位相を相違させて複数の変形用割溝を所定深さに形成する工程と
により継手本体及び二つの第１ハブ片を製造し、
一方、円柱状をなす第２素材の外周面に対し、一対の互に平行な段付孔又は雌ネジを、該第２素材の軸線と直交し、かつ軸線から所定距離離れた位置において互いに平行に形成する工程と、
第２素材を、該素材の軸線を通り、かつ前記段付孔又は雌ネジの軸線と直交する平面に沿って半円形に切断する工程と、
第２素材を、該素材の軸線と直交する平面に沿って切断して第２ハブ片原形を製造する工程と、
第２ハブ片原形の平面部の中央部に凹状溝を形成し、該溝の底面に平面部を形成する工程と
により第２ハブ片を製造することを特徴とする可撓軸継手の製造方法。 Forming a cylindrical through-hole penetrating in the axial direction with respect to the central portion of the first material having a columnar shape;
Forming both first hub pieces by notching both end portions of the first material into a semi-disc shape;
Forming a female screw or a stepped hole in parallel with each other in two plane portions connected to both sides of the semicylindrical arc grooves formed in both first hub pieces;
And a step of forming a plurality of split grooves for deformation at a predetermined depth in a direction perpendicular to the axis of the material with respect to the outer circumferential surface of the first material and in a circumferential direction of the material, Manufacturing the first hub piece,
On the other hand, a pair of mutually parallel stepped holes or female threads are perpendicular to the axis of the second material and parallel to each other at a predetermined distance from the axis with respect to the outer peripheral surface of the second material having a cylindrical shape. Forming the step,
Cutting the second material into a semicircle along a plane passing through the axis of the material and perpendicular to the axis of the stepped hole or the female screw;
Cutting the second material along a plane perpendicular to the axis of the material to produce a second hub piece original shape;
A second hub piece is manufactured by forming a concave groove in the center of the flat portion of the second hub piece original shape, and forming the flat portion on the bottom surface of the groove. .
JP2008196840A 2008-07-30 2008-07-30 Flexible shaft coupling, and method of manufacturing the same Pending JP2010032008A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407032A (en) * 2013-07-19 2013-11-27 广东联塑科技实业有限公司 Saddle bypass core-pulling transmission connector
KR101870328B1 (en) * 2015-04-28 2018-06-25 주식회사 이엠코 Roll filter apparatus capable of treating iron oxide of combined-cycle power plant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037944A (en) * 1973-07-16 1975-04-09
JPH0571550A (en) * 1991-03-27 1993-03-23 Pitney Bowes Inc Fixing device for mechanical driving member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037944A (en) * 1973-07-16 1975-04-09
JPH0571550A (en) * 1991-03-27 1993-03-23 Pitney Bowes Inc Fixing device for mechanical driving member

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407032A (en) * 2013-07-19 2013-11-27 广东联塑科技实业有限公司 Saddle bypass core-pulling transmission connector
KR101870328B1 (en) * 2015-04-28 2018-06-25 주식회사 이엠코 Roll filter apparatus capable of treating iron oxide of combined-cycle power plant

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