JPH0718033U - Flexible shaft and gear mechanism using the same - Google Patents
Flexible shaft and gear mechanism using the sameInfo
- Publication number
- JPH0718033U JPH0718033U JP4737293U JP4737293U JPH0718033U JP H0718033 U JPH0718033 U JP H0718033U JP 4737293 U JP4737293 U JP 4737293U JP 4737293 U JP4737293 U JP 4737293U JP H0718033 U JPH0718033 U JP H0718033U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- bending portion
- gear
- intermediate bending
- elastic
- 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.)
- Pending
Links
Landscapes
- Gears, Cams (AREA)
Abstract
(57)【要約】
【目的】回転力伝達手段の駆動側と従動側とにそれぞれ
接続される２個の軸部分の軸線が完全に一致しておら
ず、若干の偏心や傾斜等があっても、回転力を円滑に伝
達することができるとともに、小型、省スペース化、組
付け性の向上、コストの低減等を図る。
【構成】回転力伝達手段の駆動側と従動側とにそれぞれ
接続された２個の軸部分２、３の相互の間に偏心や傾き
があると、弾性撓曲部４における第１及び第２の両足片
６、７と中間撓曲部５とが弾性変形しつつ回転すること
により、上記の偏心や傾きが吸収され、駆動側の回転力
が従動側に円滑に伝達される。
(57) [Abstract] [Purpose] The axes of the two shafts connected to the driving side and the driven side of the rotational force transmitting means are not completely aligned, and there is some eccentricity or inclination. In addition, the rotating force can be smoothly transmitted, and the size, the space can be saved, the assemblability can be improved, and the cost can be reduced. [Structure] When there is an eccentricity or inclination between two shaft portions 2, 3 respectively connected to the driving side and the driven side of a rotational force transmitting means, if there is eccentricity or inclination, the first and second elastic bending portions 4 The eccentricity and inclination described above are absorbed by the rotation of both the legs 6, 7 and the intermediate bending portion 5 while elastically deforming, and the rotational force on the driving side is smoothly transmitted to the driven side.
Description
【０００１】[0001]
本考案は、中間部が弾性撓曲しうるようにした撓み軸、及びそれを用いた歯車 機構に関する。 The present invention relates to a flexible shaft having an intermediate portion that is elastically flexible, and a gear mechanism using the flexible shaft.
【０００２】[0002]
従来、モータ等の駆動装置に歯車を連結する場合、例えば図５に示すように、 歯車(01)の軸(02)とモータ(05)の軸(06)とを、カップリング(03)と連結用のシャ フト(04)とを介して接続することが多い。 Conventionally, when a gear is connected to a drive device such as a motor, for example, as shown in FIG. 5, a shaft (02) of a gear (01) and a shaft (06) of a motor (05) are coupled with a coupling (03). Often connected via a connecting shaft (04).
【０００３】 しかし、このような構造では、歯車(01)の軸(02)とモータ(05)の軸(06)と完全 に一直線に並んでいないと、すなわち例えば両軸(02)(06)が若干偏心していたり 、傾斜していたりすると、モータ(05)の回転力が円滑に歯車(01)に伝達されなか ったり、場合によっては回転不能となったりするおそれがある。However, in such a structure, the shaft (02) of the gear (01) and the shaft (06) of the motor (05) are not perfectly aligned, that is, for example, both shafts (02) (06). If is slightly eccentric or inclined, the rotational force of the motor (05) may not be smoothly transmitted to the gear (01), and in some cases, may become unrotatable.
【０００４】 このようなおそれをなくすには、歯車(01)の軸(02)とモータ(05)の軸(06)とを 、ユニバーサルジョイントやオルダム接手を用いて連結することが考えられるが 、そのような手段を設けると、装置全体が大型、複雑化し、設置スペースが大と なるとともに、部品点数や組付け工数が増え、コストが増大するという問題点が ある。In order to eliminate such a fear, it is conceivable to connect the shaft (02) of the gear (01) and the shaft (06) of the motor (05) by using a universal joint or an Oldham joint. If such means is provided, the entire apparatus becomes large and complicated, the installation space becomes large, the number of parts and the number of assembling steps increase, and the cost increases.
【０００５】 また、図５に示すようなカップリング(03)を用いるだけでも、その分の設置ス ペースが必要であり、かつカップリング(03)と歯車(01)の軸(02)、及びカップリ ング(03)とモータ(05)の軸(06)の２箇所の接続作業が必要である。Further, even if only the coupling (03) as shown in FIG. 5 is used, an installation space for that amount is required, and the coupling (03) and the shaft (02) of the gear (01), and It is necessary to connect the coupling (03) and the motor (05) shaft (06) at two locations.
【０００６】[0006]
本考案は、従来の技術が有する上記のような問題点に鑑み、回転力伝達手段の 駆動側と従動側とにそれぞれ接続される２個の軸部分の軸線が完全に一致してお らず、若干の偏心や傾斜等があっても、回転力を円滑に伝達することができると ともに、小型、省スペース化、組付け性の向上、コストの低減等を図ることがで きるようにした撓み軸及びそれを用いた歯車機構を提供することを目的としてい る。 In view of the above problems of the conventional technique, the present invention does not completely match the axes of the two shaft portions respectively connected to the driving side and the driven side of the rotational force transmitting means. Even if there is a slight eccentricity or inclination, the rotational force can be transmitted smoothly, and it is possible to reduce the size, save space, improve the assembling ability, and reduce the cost. It is intended to provide a flexure shaft and a gear mechanism using the same.
【０００７】[0007]
上記目的を達成するため、本考案の撓み軸は、前後方向を向く同一軸線上に配 設した２個の軸部分の中間に弾性撓曲部を設けた撓み軸において、弾性撓曲部が 、中間撓曲部と、該中間撓曲部の左右の端部より前方に延出し、かつ先端が一方 の軸部分に連設された弾性撓曲可能な第１の足片と、中間撓曲部の上下の端部よ り後方に延出し、かつ先端が他方の軸部分に連設された弾性撓曲可能な第２の足 片とを備えることを特徴としている。 In order to achieve the above object, the bending shaft of the present invention is a bending shaft having an elastic bending portion in the middle of two shaft portions arranged on the same axis line facing the front-rear direction. The intermediate bending portion, the elastically bendable first leg extending forward from the left and right ends of the intermediate bending portion, and having the tip connected to one shaft portion, and the intermediate bending portion. And an elastically bendable second foot piece that extends rearward from the upper and lower ends of the and has its tip connected to the other shaft portion.
【０００８】 中間撓曲部は、前方より見て十字形とするのがよい。 その十字形の中間撓曲部の４つの股部には、補強用の扇形のリブを設けるのが よい。 両軸部分と、弾性撓曲部を構成する中間撓曲部、第１の足片、及び第２の足片 とは、弾性を有する合成樹脂材料により一体として形成するのがよい。It is preferable that the intermediate bending portion has a cross shape when viewed from the front. Reinforcing fan-shaped ribs may be provided on the four crotch portions of the cruciform intermediate bending portion. It is preferable that the shaft portions, the intermediate bending portion, the first foot piece, and the second foot piece that form the elastic bending portion are integrally formed of an elastic synthetic resin material.
【０００９】 本考案の歯車機構は、上記の撓み軸のいずれか一方の軸部分に歯車を設け、か つ他方の軸部分をカップリングとして、他の軸に結合したことを特徴としている 。The gear mechanism of the present invention is characterized in that a gear is provided on one of the shaft portions of the above-mentioned bending shaft, and the other shaft portion is coupled to another shaft as a coupling.
【００１０】 このカップリングとした軸部分に結合される他の軸は、モータの回転軸とする ことができる。The other shaft coupled to the shaft part that is the coupling can be the rotation shaft of the motor.
【００１１】 なお、上記の前後、左右、及び上下の方向は、各部の相互の位置関係を明確に するために用いただけであり、使用時の向きを特定したり、制限したりするため のものではない。The above-mentioned front-rear, left-right, and up-down directions are only used for clarifying the mutual positional relationship of the respective parts, and are for specifying or limiting the orientation during use. is not.
【００１２】[0012]
回転力伝達手段の駆動側と従動側とにそれぞれ接続された２個の軸部分の相互 の間に偏心や傾きがあると、弾性撓曲部における第１及び第２の両足片と中間撓 曲部とが弾性変形しつつ回転することにより、上記の偏心や傾きが吸収され、駆 動側の回転力が従動側に円滑に伝達される。 If there is an eccentricity or inclination between the two shaft portions connected to the driving side and the driven side of the rotational force transmitting means, if there is an eccentricity or inclination between the first and second foot pieces and the intermediate bending in the elastic bending portion. The eccentricity and inclination described above are absorbed by the elastic deformation of the parts and the rotation, and the rotational force on the driving side is smoothly transmitted to the driven side.
【００１３】[0013]
以下、本考案の一実施例を、図１〜図３を参照して説明する。 撓み軸(１)は、同一軸線上に配設した２個の軸部分(２)(３)と、その中間に設 けた弾性撓曲部(４)とからなっている。 なお、以下の説明では、撓み軸(１)の軸線を前後方向に向けて配設したものと して説明する。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The bending shaft (1) is composed of two shaft portions (2) and (3) arranged on the same axis, and an elastic bending portion (4) provided in the middle thereof. In the following description, it is assumed that the axis of the flexible shaft (1) is arranged in the front-rear direction.
【００１４】 弾性撓曲部(４)は、正面形を十字形とした中間撓曲部(５)と、該中間撓曲部( ５)の左右の端部より前方に延出し、かつ先端が一方の軸部分(２)に連設された 弾性撓曲可能な１対の第１の足片(６)と、中間撓曲部(５)の上下の端部より後方 に延出し、かつ先端が他方の軸部分(３)に連設された弾性撓曲可能な１対の第２ の足片(７)と、十字形の中間撓曲部(５)の４つの股部に設けられた補強用の扇形 のリブ(８)とからなっている。The elastic bending part (4) extends forward from the left and right ends of the intermediate bending part (5) having a cruciform front shape, and has a tip. A pair of elastically bendable first foot pieces (6) connected to one shaft portion (2) and an end portion extending rearward from the upper and lower ends of the intermediate bending portion (5) and Are provided on the four crotch portions of the pair of elastically bendable second foot pieces (7) connected to the other shaft portion (3) and the cross-shaped intermediate bending portion (5). It consists of reinforcing fan ribs (8).
【００１５】 両軸部分(２)(３)と、弾性撓曲部(４)を構成する中間撓曲部(５)、第１の足片 (６)、第２の足片(７)、及び補強用のリブ(８)とは、弾性を有する合成樹脂材料 によりすべて一体成形されている。Both shaft portions (2) and (3), an intermediate bending portion (5) forming an elastic bending portion (4), a first foot piece (6), a second foot piece (7), The rib 8 for reinforcement and the rib 8 for reinforcement are all integrally formed of a synthetic resin material having elasticity.
【００１６】 本実施例においては、一方の軸部分(２)の中間部に歯車(９)を一体的に成形し 、かつ他方の軸部分(３)の中央に軸孔(10)を貫設し、軸部分(３)を他の軸(図示 略)に結合するためのカップリングとしてある。In this embodiment, a gear (9) is integrally formed in the middle of one shaft portion (2), and a shaft hole (10) is formed at the center of the other shaft portion (3). However, it serves as a coupling for connecting the shaft portion (3) to another shaft (not shown).
【００１７】 そのカップリングである軸部分(３)の軸孔(10)に、例えば図４に示すモータ(1 1)の回転軸(12)のような回転力伝達手段の駆動側又は従動側の軸を圧嵌し、かつ 歯車(９)に回転力伝達手段の従動側又は駆動側の歯車(図示略)を噛合させること により、モータ(11)等の回転力伝達手段の駆動側の回転力が、撓み軸(１)と歯車 (９)とを介して従動側に伝達される。In the shaft hole (10) of the shaft portion (3) which is the coupling, the driving side or the driven side of the rotational force transmitting means such as the rotating shaft (12) of the motor (11) shown in FIG. The rotation of the drive side of the rotational force transmission means such as the motor (11) is achieved by press-fitting the shaft of the motor and engaging the gear (9) with the driven side or drive side gear (not shown) of the rotational force transmission means. The force is transmitted to the driven side via the bending shaft (1) and the gear (9).
【００１８】 このとき、万一、回転力伝達手段の駆動側と従動側とにそれぞれ接続された２ 個の軸部分(２)(３)が、例えば図３に示すように互いに若干傾いて取り付けられ ると、弾性撓曲部(４)における第１及び第２の両足片(６)(７)と中間撓曲部(５) とが曲がりや捩れ等の弾性変形しつつ回転することにより、上記の傾きが吸収さ れ、駆動側の回転力が従動側に円滑に伝達される。At this time, in the unlikely event that the two shaft portions (2) and (3) respectively connected to the driving side and the driven side of the rotational force transmitting means are attached with a slight inclination as shown in FIG. 3, for example. Then, the first and second foot pieces (6) (7) and the intermediate bending portion (5) of the elastic bending portion (4) rotate while elastically deforming such as bending or twisting, The above inclination is absorbed, and the rotational force on the driving side is smoothly transmitted to the driven side.
【００１９】 また、２個の軸部分(２)(３)が、互いに若干偏心して取り付けられた場合も、 上記の傾斜して取り付けられた場合と同様に、第１及び第２の両足片(６)(７)と 中間撓曲部(５)とが弾性変形しつつ回転することにより、その偏心が吸収され、 駆動側の回転力が従動側に円滑に伝達される。Further, even when the two shaft portions (2) and (3) are attached so as to be slightly eccentric to each other, the first and second foot pieces ( 6) The eccentricity is absorbed by the rotation of the intermediate bending portion 5 and the intermediate bending portion 5 while being elastically deformed, and the rotational force on the driving side is smoothly transmitted to the driven side.
【００２０】 図４は、撓み軸(１)を用いた歯車機構の一例を示すもので、このように撓み軸 (１)のいずれか一方の軸部分(２)に歯車を設け、かつ他方の軸部分(３)をカップ リングとして、その軸孔(10)にモータ(11)の回転軸(12)を圧嵌して結合すると、 図５に示す従来のものにおけるカップリング(03)や連結用のシャフト(04)等を設 ける必要がなく、部品点数を少なくして、小型、省スペース化、組付け性の向上 、コストの低減等を図ることができる。FIG. 4 shows an example of a gear mechanism using the flexure shaft (1). As described above, a gear is provided on one shaft portion (2) of the flexure shaft (1), and When the rotary shaft (12) of the motor (11) is press-fitted into the shaft hole (10) of the shaft portion (3) as a coupling, the coupling (03) and the coupling in the conventional one shown in FIG. Since it is not necessary to provide a shaft (04) for use in the product, the number of parts can be reduced, and it is possible to reduce the size, save the space, improve the assemblability, and reduce the cost.
【００２１】[0021]
本考案によると、次のような効果を奏することができる。 (a) 回転力伝達手段の駆動側と従動側とにそれぞれ接続された２個の軸部分の軸 線が完全に一致しておらず、若干の偏心や傾斜等があっても、弾性撓曲部を構成 する中間撓曲部と、第１の足片と、第２の足片とがバランスよく弾性撓曲しつつ 回転することにより、回転力を円滑に伝達することができる。 According to the present invention, the following effects can be achieved. (a) The axes of the two shafts respectively connected to the driving side and the driven side of the rotational force transmitting means are not completely aligned, and even if there is some eccentricity or inclination, elastic bending The intermediate bending portion, the first foot piece, and the second foot piece that form the part rotate while elastically bending in a well-balanced manner, so that the rotational force can be smoothly transmitted.
【００２２】 (b) 撓み軸をそのまま歯車等の軸として用いることができ、歯車機構の部品点数 を削減できるとともに、小型、省スペース化、組付け性の向上を図ることができ 、またコストを低減することができる。(B) The flexible shaft can be used as it is as a shaft of a gear or the like, the number of parts of the gear mechanism can be reduced, and the size, the space can be saved, the assemblability can be improved, and the cost can be reduced. It can be reduced.
【００２３】 (c) 弾性撓曲部を構成する中間撓曲部と、第１の足片と、第２の足片とは、撓み 軸の中心軸線に対してバランスよく配置されているので、動的アンバランスが生 じるおそれが少ない。(C) Since the intermediate bending portion, the first foot piece, and the second foot piece that form the elastic bending portion are arranged in a well-balanced manner with respect to the central axis of the bending shaft, Less likely to cause dynamic imbalance.
【００２４】 (d) 撓み軸そのものを、合成樹脂材料による一体成形により簡単に製造すること ができ、製造コストを従来構造のものより著しく低減することができる。(D) The flexible shaft itself can be easily manufactured by integral molding with a synthetic resin material, and the manufacturing cost can be remarkably reduced as compared with the conventional structure.
【００２５】 (e) 十字形の中間撓曲部の４つの股部に補強用の扇形のリブを設けると、中間撓 曲部の折損等が防止できるとともに、中間撓曲部の弾性撓曲を許容しながら、十 分な回転トルクの伝達を保証することができる。(E) Providing reinforcing fan-shaped ribs to the four crotch portions of the cruciform intermediate bending portion can prevent breakage of the intermediate bending portion and prevent elastic bending of the intermediate bending portion. It is possible to ensure the transmission of sufficient rotational torque while allowing it.
【図１】本考案の一実施例を、弾性撓曲部の第１の足片
の中間で切断して示す斜視図である。FIG. 1 is a perspective view showing an embodiment of the present invention cut in the middle of a first leg of an elastic bending portion.
【図２】同じく平面図である。FIG. 2 is a plan view of the same.
【図３】同じく、両軸部分が若干傾斜して取り付けられ
たときの状態を示す平面図である。FIG. 3 is likewise a plan view showing a state in which both shaft portions are attached with a slight inclination.
【図４】図１〜図３に示す撓み軸を用いた、本考案の歯
車機構の一例を示す側面図である。FIG. 4 is a side view showing an example of a gear mechanism of the present invention using the bending shaft shown in FIGS.
【図５】従来のモータと歯車とのカップリングを用いた
連結構造を示す側面図である。FIG. 5 is a side view showing a conventional connecting structure using a coupling between a motor and a gear.
(１)撓み軸 (２)(３)軸部分 (４)弾性撓曲部 (５)中間撓曲部 (６)第１の足片 (７)第２の足片 (８)リブ (９)歯車 (10)軸孔 (11)モータ (12)回転軸 (1) Bending shaft (2) (3) Shaft part (4) Elastic bending part (5) Intermediate bending part (6) First foot piece (7) Second foot piece (8) Rib (9) Gear (10) Shaft hole (11) Motor (12) Rotating shaft
Claims (6)
個の軸部分の中間に弾性撓曲部を設けた撓み軸におい
て、 弾性撓曲部が、中間撓曲部と、該中間撓曲部の左右の端
部より前方に延出し、かつ先端が一方の軸部分に連設さ
れた弾性撓曲可能な第１の足片と、中間撓曲部の上下の
端部より後方に延出し、かつ先端が他方の軸部分に連設
された弾性撓曲可能な第２の足片とを備えることを特徴
とする撓み軸。1. Arranged on the same axis extending in the front-rear direction
In a flexure shaft in which an elastic bending portion is provided between the individual shaft portions, the elastic bending portion extends forward from the intermediate bending portion and the left and right ends of the intermediate bending portion, and the tip is Elastically bendable first foot piece connected to the shaft portion of the first and elastic bends extending rearward from the upper and lower ends of the intermediate bending portion and having a tip connected to the other shaft portion. A flexible shaft comprising a possible second leg.
請求項１記載の撓み軸。2. The bending shaft according to claim 1, wherein the intermediate bending portion has a cross shape when viewed from the front.
強用の扇形のリブを設けた請求項１又は２記載の撓み
軸。3. The flexure shaft according to claim 1, wherein the four crotch portions of the cruciform intermediate bending portion are provided with reinforcing fan-shaped ribs.
撓曲部、第１の足片、及び第２の足片とを、弾性を有す
る合成樹脂材料により一体として形成してなる請求項１
〜３のいずれかに記載の撓み軸。4. The shaft portion, the intermediate bending portion that constitutes the elastic bending portion, the first foot piece, and the second foot piece are integrally formed of a synthetic resin material having elasticity. Claim 1
The flexible shaft according to any one of 1 to 3.
設け、かつ他方の軸部分をカップリングとして、他の軸
に結合したことを特徴とする請求項１〜４のいずれかに
記載の撓み軸を用いた歯車機構。5. The gear according to claim 1, wherein a gear is provided on one of the shaft portions of the flexible shaft, and the other shaft portion is coupled to the other shaft as a coupling. Gear mechanism using the flexible shaft of.
他の軸が、モータの回転軸である請求項５記載の歯車機
構。6. The gear mechanism according to claim 5, wherein the other shaft coupled to the shaft portion serving as the coupling is a rotary shaft of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4737293U JPH0718033U (en) | 1993-08-31 | 1993-08-31 | Flexible shaft and gear mechanism using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4737293U JPH0718033U (en) | 1993-08-31 | 1993-08-31 | Flexible shaft and gear mechanism using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0718033U true JPH0718033U (en) | 1995-03-31 |
Family
ID=12773279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4737293U Pending JPH0718033U (en) | 1993-08-31 | 1993-08-31 | Flexible shaft and gear mechanism using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718033U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51119446A (en) * | 1975-04-09 | 1976-10-20 | Sony Corp | Universal joint |
| JPH04246043A (en) * | 1991-01-28 | 1992-09-02 | Fuji Xerox Co Ltd | Load connecting method of stepping motor |
| JPH0620925B2 (en) * | 1987-10-02 | 1994-03-23 | 株式会社ダイフク | Crane lift carriage drive |
-
1993
- 1993-08-31 JP JP4737293U patent/JPH0718033U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51119446A (en) * | 1975-04-09 | 1976-10-20 | Sony Corp | Universal joint |
| JPH0620925B2 (en) * | 1987-10-02 | 1994-03-23 | 株式会社ダイフク | Crane lift carriage drive |
| JPH04246043A (en) * | 1991-01-28 | 1992-09-02 | Fuji Xerox Co Ltd | Load connecting method of stepping motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102686898B (en) | Shaft coupling mechanism | |
| EP1772346A1 (en) | Slip joint for use in steering system | |
| EP1830090A1 (en) | Shaft connection mechanism for electric power steering device | |
| JP2001017446A (en) | Hand piece for medical purpose | |
| JPH0243923B2 (en) | ||
| JPH0718033U (en) | Flexible shaft and gear mechanism using the same | |
| JPH0811680A (en) | Working angle adjusting structure for wiper device | |
| JPH11207048A (en) | Toy assembling set including many transmitting elements | |
| JP2002011679A (en) | Multiped walking robot | |
| US4518369A (en) | Coupling arrangement for rotating shafts | |
| WO2004113752A1 (en) | Universal joint | |
| JPS6216524Y2 (en) | ||
| JP3389721B2 (en) | Elastic universal joint | |
| KR100451158B1 (en) | Joint structure of robot | |
| JPS6020828Y2 (en) | Push-pull cable terminal connection device | |
| JP5391501B2 (en) | Rotating shaft connection structure | |
| JP2772026B2 (en) | Universal joint | |
| JPS62171524A (en) | Connecting structure of rotary shaft and rotary arm | |
| JP2991525B2 (en) | Flexible joint | |
| KR940002961Y1 (en) | Coupling | |
| JPH04145230A (en) | Shaft coupling | |
| JPH061462Y2 (en) | Vehicle propeller shaft connection structure | |
| JPS6340653Y2 (en) | ||
| JPH07733Y2 (en) | Ball joint structure | |
| JPS62168750A (en) | Window shield-wiper-ball joint |