JP5662028B2 - Driving wire - Google Patents

Driving wire Download PDF

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Publication number
JP5662028B2
JP5662028B2 JP2010005530A JP2010005530A JP5662028B2 JP 5662028 B2 JP5662028 B2 JP 5662028B2 JP 2010005530 A JP2010005530 A JP 2010005530A JP 2010005530 A JP2010005530 A JP 2010005530A JP 5662028 B2 JP5662028 B2 JP 5662028B2
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outer tube
flexible wire
wire
drive
flexible
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JP2011144862A (en
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敏治 伊藤
敏治 伊藤
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Shiroki Corp
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Shiroki Corp
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Priority to JP2010005530A priority Critical patent/JP5662028B2/en
Priority to PCT/JP2010/072962 priority patent/WO2011086821A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/02Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements
    • F16C1/06Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements with guiding sheathing, tube or box
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246Electric motors therefor
    • B60N2/02258Electric motors therefor characterised by the mounting of the electric motor for adjusting the seat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26Construction of guiding-sheathings or guiding-tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00General mechanical or structural details
    • B60N2205/20Measures for elimination or compensation of play or backlash

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Flexible Shafts (AREA)
  • Seats For Vehicles (AREA)

Description

本発明は、駆動源からの動力を伝達するフレキシブルワイヤと、このフレキシブルワイヤを覆う筒状のアウタチューブとからなる駆動ワイヤに関する。   The present invention relates to a drive wire including a flexible wire that transmits power from a drive source and a cylindrical outer tube that covers the flexible wire.

例えば、モータによりシートが前後方向に移動するパワーシート装置においては、駆動手段と、シートを前後方向に駆動する被駆動手段との間は、フレキシブルワイヤと、フレキシブルワイヤを覆う筒状のアウタチューブとからなる駆動ワイヤを用いて動力の伝達が行われる。   For example, in a power seat apparatus in which a seat is moved in the front-rear direction by a motor, a flexible wire and a cylindrical outer tube covering the flexible wire are provided between the driving means and the driven means for driving the seat in the front-rear direction. Power is transmitted using a drive wire consisting of

ところで、このような駆動ワイヤにおいて、フレキシブルワイヤ外周面とアウタチューブの内周面との隙間が広い場合には、フレキシブルワイヤが回転する際に、フレキシブルワイヤがアウタチューブ内で波打つ場合がある。その際、フレキシブルワイヤがアウタチューブの内面を叩き、異音が発生する。   By the way, in such a drive wire, when the clearance between the outer peripheral surface of the flexible wire and the inner peripheral surface of the outer tube is wide, the flexible wire may wave in the outer tube when the flexible wire rotates. At that time, the flexible wire hits the inner surface of the outer tube, and abnormal noise is generated.

この異音の発生を防止するために、アウタチューブの周部に、内部に向かって凹没した凹没部を複数形成し、フレキシブルワイヤをアウタチューブの内の定位置で拘束し、波打ち現象を抑えることが提案されている(例えば、特許文献1参照)。   In order to prevent the generation of this abnormal noise, a plurality of recessed portions that are recessed toward the inside are formed in the peripheral portion of the outer tube, and the flexible wire is constrained at a fixed position in the outer tube, thereby causing the wavy phenomenon. It has been proposed to suppress (see, for example, Patent Document 1).

また、フレキシブルワイヤの外周面に植毛を施し、フレキシブルワイヤの波打ちによる異音の発生を防止することもなされている。   In addition, flocking is performed on the outer peripheral surface of the flexible wire to prevent the generation of abnormal noise due to the undulation of the flexible wire.

特開平10−147164号公報JP-A-10-147164

しかし、特許文献1に記載された構成の駆動ワイヤでは、フレキシブルワイヤの回転により、アウタチューブの凹没部又はフレキシブルワイヤの外周面が摩耗すると、凹没部とフレキシブルワイヤの外周面との間に隙間が発生し、フレキシブルワイヤがアウタチューブ内で波打ち、再び異音が発生する問題点がある。   However, in the drive wire having the configuration described in Patent Document 1, when the concave portion of the outer tube or the outer peripheral surface of the flexible wire is worn due to the rotation of the flexible wire, it is between the concave portion and the outer peripheral surface of the flexible wire. There is a problem that a gap is generated, the flexible wire undulates in the outer tube, and abnormal noise is generated again.

また、フレキシブルワイヤの外周面に植毛を施しても、フレキシブルワイヤの回転により、植毛が摩耗し、アウタチューブの内周面とフレキシブルワイヤの外周面との間に隙間が発生し、フレキシブルワイヤがアウタチューブ内で波打ち、再び異音が発生する問題点がある。   In addition, even if flocking is applied to the outer peripheral surface of the flexible wire, the flocking wears due to the rotation of the flexible wire, and a gap is generated between the inner peripheral surface of the outer tube and the outer peripheral surface of the flexible wire. There is a problem that undulation in the tube and abnormal noise occurs again.

本発明は、上記問題点に鑑みてなされたもので、その課題は、異音が発生しない駆動ワイヤを提供することにある。   The present invention has been made in view of the above problems, and an object thereof is to provide a drive wire that does not generate abnormal noise.

上記課題を解決する請求項1に係る発明は、一端部が駆動手段の出力軸に接続され、他端部が被駆動手段の入力軸に接続され、前記駆動手段の動力を前記被駆動手段へ伝達するフレキシブルワイヤと、前記駆動手段と前記被駆動手段との間に設けられ、前記フレキシブルワイヤを覆う筒状のアウタチューブとからなる駆動ワイヤにおいて、前記駆動手段の出力軸と前記被駆動手段の入力軸とに接続された使用状態での前記フレキシブルワイヤは、直線状の形状を有し、自然状態での前記アウタチューブには、弾性変形可能な湾曲部が設けられており、前記使用状態の前記フレキシブルワイヤが前記アウタチューブの前記湾曲部内に挿通されている状態では、該フレキシブルワイヤの挿通により、前記湾曲部の湾曲度が緩やかになる方向に前記アウタチューブが弾性変形しており、前記アウタチューブの弾性復元力により前記アウタチューブの内壁面には、前記フレキシブルワイヤの外周面を押圧する押圧部が発生していることを特徴とする駆動ワイヤである。 In the invention according to claim 1 for solving the above problem, one end is connected to the output shaft of the driving means, the other end is connected to the input shaft of the driven means, and the power of the driving means is supplied to the driven means. In a drive wire comprising a flexible wire for transmission and a cylindrical outer tube that is provided between the drive means and the driven means and covers the flexible wire, the output shaft of the drive means and the driven means The flexible wire in a use state connected to an input shaft has a linear shape, and the outer tube in a natural state is provided with a curved portion that can be elastically deformed. wherein in the state in which the flexible wire is inserted into the curved portion of the outer tube, the insertion of the flexible wires, wherein the direction in which curvature of the curved portion becomes gentle Uta tube has elastically deformed, the inner wall surface of the outer tube by an elastic restoring force of the outer tube is a drive wire, wherein a pressing portion for pressing the outer peripheral surface of the flexible wire has occurred is there.

請求項2に係る発明は、前記使用状態の前記フレキシブルワイヤが挿通された前記アウタチューブの湾曲部の内壁面には、前記フレキシブルワイヤの外周面に摺接しながら前記
フレキシブルワイヤを押圧する突部が形成され、該突部が前記押圧部を構成していることを特徴とする請求項1記載の駆動ワイヤである
According to a second aspect of the present invention, the inner wall surface of the curved portion of the outer tube through which the flexible wire in the use state is inserted is slidably in contact with the outer peripheral surface of the flexible wire.
Formed protrusion for pressing the flexible wire is a drive wire of claim 1, wherein the projecting portion is characterized that you have to configure the pressing portion.

請求項1及び2に係る発明によれば、駆動手段の出力軸と被駆動手段の入力軸とに接続された使用状態でのフレキシブルワイヤは、直線状の形状を有し、自然状態でのアウタチューブには、弾性変形可能な湾曲部が設けられており、使用状態のフレキシブルワイヤがアウタチューブの湾曲部内に挿通されている状態では、該フレキシブルワイヤの挿通により、湾曲部の湾曲度が緩やかになる方向にアウタチューブが弾性変形しているため、アウタチューブの弾性復元力によりアウタチューブの内壁面には、フレキシブルワイヤの外周面を押圧する押圧部が発生する。このアウタチューブの弾性復元力により、アウタチューブの押圧部はフレキシブルワイヤを押圧し続ける。よって、フレキシブルワイヤがアウタチューブ内で波打つことがなく、異音が発生しない。
According to the first and second aspects of the invention , the flexible wire in the use state connected to the output shaft of the driving means and the input shaft of the driven means has a linear shape, and the outer wire in the natural state. The tube is provided with an elastically deformable bending portion. When the flexible wire in use is inserted into the bending portion of the outer tube, the bending degree of the bending portion is gradually reduced by the insertion of the flexible wire. Since the outer tube is elastically deformed in such a direction, a pressing portion that presses the outer peripheral surface of the flexible wire is generated on the inner wall surface of the outer tube by the elastic restoring force of the outer tube . Due to the elastic restoring force of the outer tube, the pressing portion of the outer tube continues to press the flexible wire. Therefore, the flexible wire does not wave in the outer tube, and no abnormal noise is generated.

実施形態の駆動ワイヤの断面図である。It is sectional drawing of the drive wire of embodiment. 実施形態の駆動ワイヤが設けられるシートの全体構成を示す図である。It is a figure which shows the whole structure of the sheet | seat in which the drive wire of embodiment is provided. 他の実施形態の駆動ワイヤの断面図である。It is sectional drawing of the drive wire of other embodiment.

次に図面を用いて本発明の実施の形態を説明する。
最初に、図2を用いて、本実施形態の駆動ワイヤが設けられるシートの全体構成を説明する。図において、シートとフロアとの間には、一対のシートトラック1、1’が設けられている。このシートトラック1、1’は、フロア側に設けられるロアレール3、3’と、ロアレール3、3’に移動可能に係合するアッパレール5、5’とからなっている。アッパレール5、5’には、シートクッションフレーム,シートバックフレーム等からなるシート本体7が設けられる。
Next, embodiments of the present invention will be described with reference to the drawings.
First, with reference to FIG. 2, the overall configuration of a sheet provided with the drive wire of the present embodiment will be described. In the figure, a pair of seat tracks 1, 1 'are provided between the seat and the floor. The seat tracks 1, 1 'are composed of lower rails 3, 3' provided on the floor side, and upper rails 5, 5 'movably engaged with the lower rails 3, 3'. The upper rails 5 and 5 'are provided with a seat body 7 including a seat cushion frame and a seat back frame.

アッパレール5、5’内には、長手方向に沿って図示しないねじ棒が回転可能に設けられている。また、ロアレール3、3’内には、アッパレール5、5’のねじ棒に螺合する図示しないナット部材が取り付けられている。更に、アッパレール5、5’上には、ねじ棒を駆動するギアボックス9、9’が設けられている。   In the upper rails 5 and 5 ′, screw rods (not shown) are rotatably provided along the longitudinal direction. Further, a nut member (not shown) that is screwed into the screw rods of the upper rails 5 and 5 ′ is attached in the lower rails 3 and 3 ′. Furthermore, gear boxes 9, 9 'for driving screw rods are provided on the upper rails 5, 5'.

アッパレール5、5’間には、両方のアッパレール5、5’を橋渡しするようにブラケット11が設けられている。このブラケット11上には、シートトラック駆動用のモータ13が配設される。このモータ13は、2つの出力軸を有している。   A bracket 11 is provided between the upper rails 5 and 5 'so as to bridge both the upper rails 5 and 5'. A motor 13 for driving the seat track is disposed on the bracket 11. The motor 13 has two output shafts.

そして、一端側がモータ13の一方の出力軸(シートトラック1側の出力軸)に接続され、他端側がモータ13の出力軸と同一方向のギアボックス9の入力軸に接続される駆動ワイヤ20によって、モータ13の動力はギアボックス9に伝達されるようになっている。尚、この駆動ワイヤ20は、モータ13の出力軸とギアボックス9の入力軸とに接続され、モータ13の動力をギアボックス9へ伝達するフレキシブルワイヤ(後述する)と、このフレキシブルワイヤを覆う筒状のアウタチューブ21とからなっている。また、一端側がモータ13の他方の出力軸(シートトラック1’側の出力軸)に接続され、他端側がギアボックス9’の入力軸に接続されるフレキシブルワイヤ18によって、モータ13の動力はギアボックス9’に伝達されるようになっている。   One end side is connected to one output shaft of the motor 13 (the output shaft on the seat track 1 side), and the other end side is connected to the input shaft of the gear box 9 in the same direction as the output shaft of the motor 13 by a drive wire 20. The power of the motor 13 is transmitted to the gear box 9. The drive wire 20 is connected to the output shaft of the motor 13 and the input shaft of the gear box 9, and a flexible wire (described later) for transmitting the power of the motor 13 to the gear box 9 and a cylinder covering the flexible wire. The outer tube 21 is shaped like a tube. The motor 13 is powered by a flexible wire 18 having one end connected to the other output shaft of the motor 13 (the output shaft on the seat track 1 'side) and the other end connected to the input shaft of the gear box 9'. It is transmitted to box 9 '.

従って、モータ13が駆動されると、モータ13の動力は、アウタチューブ21内のフレキシブルワイヤを介してシートトラック1のギアボックス9へ伝達される。ギアボックス9が回転することにより、シートトラック1のアッパレール5内のねじ棒が回転する。ロアレール3に取り付けられ、ねじ棒に螺合するナット部材は自転ができないので、アッパレール5がロアレール1に対して移動する。また、モータ13の動力は、フレキシブルワイヤ18を介してシートトラック1’のギアボックス9’へも伝達される。そして、シートトラック1と同様に、シートトラック1’のアッパレール5’もロアレール1に対して移動する。   Therefore, when the motor 13 is driven, the power of the motor 13 is transmitted to the gear box 9 of the seat track 1 via the flexible wire in the outer tube 21. As the gear box 9 rotates, the screw rod in the upper rail 5 of the seat track 1 rotates. Since the nut member attached to the lower rail 3 and screwed into the screw rod cannot rotate, the upper rail 5 moves with respect to the lower rail 1. The power of the motor 13 is also transmitted to the gear box 9 ′ of the seat track 1 ′ via the flexible wire 18. Similarly to the seat track 1, the upper rail 5 ′ of the seat track 1 ′ moves with respect to the lower rail 1.

ここで、図1,図2を用いて、駆動ワイヤ20の説明を行う。図1は本実施形態の駆動ワイヤの断面図である。図1に示すように、駆動ワイヤ20は、駆動手段であるモータ13の出力軸と、被駆動手段であるギアボックス9の入力軸とに接続されるフレキシブルワイヤ25と、モータ1とギアボックス9との間に設けられ、フレキシブルワイヤ25を覆う筒状のアウタチューブ21とからなっている。   Here, the drive wire 20 will be described with reference to FIGS. FIG. 1 is a cross-sectional view of the drive wire of this embodiment. As shown in FIG. 1, the drive wire 20 includes a flexible wire 25 connected to an output shaft of the motor 13 as drive means and an input shaft of the gear box 9 as drive means, and the motor 1 and the gear box 9. And a cylindrical outer tube 21 that covers the flexible wire 25.

本実施形態のアウタチューブ21は、弾性を有する樹脂でなっている。そして、図2に示すように、アウタチューブ21の両端側は、ブラケット11上に設けられたアウタチューブ取り付けブラケット31、33によって支持されている。   The outer tube 21 of the present embodiment is made of an elastic resin. As shown in FIG. 2, both end sides of the outer tube 21 are supported by outer tube mounting brackets 31 and 33 provided on the bracket 11.

図1に戻り、アウタチューブ21は、フレキシブルワイヤ18が挿入されていない状態(自然状態)では、アウタチューブ21の中間部は、湾曲した湾曲部Wが形成されている。更に、アウタチューブ21の湾曲部Wには、周方向に沿って内径が他の部分より小さくなった複数の絞り部35が、アウタチューブ21の長手方向の異なる位置に形成されている。絞り部35が形成されることにより、アウタチューブ21の内周面には、長手方向の異なる位置に複数の突部35aが形成される。   Returning to FIG. 1, in the outer tube 21 in a state where the flexible wire 18 is not inserted (natural state), a curved curved portion W is formed at an intermediate portion of the outer tube 21. Further, the curved portion W of the outer tube 21 is formed with a plurality of throttle portions 35 whose inner diameters are smaller than other portions along the circumferential direction at different positions in the longitudinal direction of the outer tube 21. By forming the throttle portion 35, a plurality of protrusions 35a are formed on the inner peripheral surface of the outer tube 21 at different positions in the longitudinal direction.

一方、一端側がモータ13の出力軸に、他端側がギアボックス9の入力軸に接続された使用状態のフレキシブルワイヤ18の形状は、略直線状である。
従って、湾曲部Wを有した自然状態のアウタチューブ21の内壁面の形状は、使用状態のフレキシブルワイヤ18の形状(略直線形状)と異なっている。
On the other hand, the shape of the flexible wire 18 in a used state in which one end side is connected to the output shaft of the motor 13 and the other end side is connected to the input shaft of the gear box 9 is substantially linear.
Accordingly, the shape of the inner wall surface of the outer tube 21 in the natural state having the curved portion W is different from the shape (substantially linear shape) of the flexible wire 18 in the used state.

ここで、アウタチューブ取り付けブラケット31、33によって支持された自然状態のアウタチューブ21にフレキシブルワイヤ25を挿通し、フレキシブルワイヤ25の一端側をモータ13の出力軸に、他端側がギアボックス9の入力軸に接続すると、アウタチューブ21は湾曲部Wの湾曲度が緩やかになる方向に弾性変形する。そして、湾曲部Wに形成された3箇所の絞り部35のうち、中央の絞り部35の突部35aがフレキシブルワイヤ25の外周面の一方の側に押接し、両側の絞り部35の突部35aがフレキシブルワイヤ25の外周面の他方の側に押接し、アウタチューブ21の長手方向の異なる位置に押圧部P1,P2,P3が発生する。   Here, the flexible wire 25 is inserted into the outer tube 21 in a natural state supported by the outer tube mounting brackets 31 and 33, one end of the flexible wire 25 is input to the output shaft of the motor 13, and the other end is input to the gear box 9. When connected to the shaft, the outer tube 21 is elastically deformed in a direction in which the bending degree of the bending portion W becomes gentle. Of the three narrowed portions 35 formed in the curved portion W, the projection 35a of the central narrowed portion 35 presses against one side of the outer peripheral surface of the flexible wire 25, and the projected portions of the narrowed portion 35 on both sides. 35a presses against the other side of the outer peripheral surface of the flexible wire 25, and pressing portions P1, P2, and P3 are generated at different positions in the longitudinal direction of the outer tube 21.

このような構成によれば、アウタチューブ21の弾性復元力により、アウタチューブ21の押圧部P1,P2,P3はフレキシブルワイヤ25を押圧し続ける。フレキシブルワイヤ25の回転により、アウタチューブ21の押圧部P1,P2,P3又はフレキシブルワイヤ25の外周面が摩耗してもスキは発生しない。よって、フレキシブルワイヤ25がアウタチューブ21内で波打つことがなく、異音が発生しない。   According to such a configuration, the pressing portions P <b> 1, P <b> 2, P <b> 3 of the outer tube 21 continue to press the flexible wire 25 due to the elastic restoring force of the outer tube 21. Even if the outer peripheral surface of the pressing portions P1, P2, P3 of the outer tube 21 or the flexible wire 25 is worn by the rotation of the flexible wire 25, no skid is generated. Therefore, the flexible wire 25 does not wave in the outer tube 21, and no abnormal noise is generated.

尚、本発明は、上記実施形態に限定するものではない。上記実施形態では、アウタチューブ21に、周方向に沿って内径が他の部分より小さくなる絞り部35を形成したが、図3に示すように、アウタチューブ21の内周面に突部45を形成しても、絞り部35を形成した場合と同様に、フレキシブルワイヤ25を押圧する押圧部P1’,P2’,P3’が発生する。よって、絞り部35を形成した場合と同様な効果を得ることができる。   In addition, this invention is not limited to the said embodiment. In the above embodiment, the throttle portion 35 whose inner diameter is smaller than other portions along the circumferential direction is formed on the outer tube 21. However, as shown in FIG. 3, the protrusion 45 is provided on the inner peripheral surface of the outer tube 21. Even if it forms, like the case where the aperture | diaphragm | squeeze part 35 is formed, press part P1 ', P2', and P3 'which press the flexible wire 25 generate | occur | produce. Therefore, it is possible to obtain the same effect as when the aperture portion 35 is formed.

また、アウタチューブ21に湾曲部Wだけ形成し、絞り部35を形成しなくてもよい
In addition, it is not necessary to form only the curved portion W in the outer tube 21 and form the throttle portion 35 .

また更に、上記実施形態では、3つの押圧部を形成したが、押圧部は1つ又は2つでもアウタチューブ内でフレキシブルワイヤ25が波打つことを防止できる。   Furthermore, in the above-described embodiment, three pressing portions are formed, but even one or two pressing portions can prevent the flexible wire 25 from undulating in the outer tube.

20 駆動ワイヤ
21 アウタチューブ
25 フレキシブルワイヤ
P1,P2,P3 押圧部
20 Drive wire 21 Outer tube 25 Flexible wire P1, P2, P3 Press part

Claims (2)

一端部が駆動手段の出力軸に接続され、他端部が被駆動手段の入力軸に接続され、前記駆動手段の動力を前記被駆動手段へ伝達するフレキシブルワイヤと、
前記駆動手段と前記被駆動手段との間に設けられ、前記フレキシブルワイヤを覆う筒状のアウタチューブとからなる駆動ワイヤにおいて、
前記駆動手段の出力軸と前記被駆動手段の入力軸とに接続された使用状態での前記フレキシブルワイヤは、直線状の形状を有し、
自然状態での前記アウタチューブには、弾性変形可能な湾曲部が設けられており、
前記使用状態の前記フレキシブルワイヤが前記アウタチューブの前記湾曲部内に挿通されている状態では、該フレキシブルワイヤの挿通により、前記湾曲部の湾曲度が緩やかになる方向に前記アウタチューブが弾性変形しており、
前記アウタチューブの弾性復元力により前記アウタチューブの内壁面には、前記フレキシブルワイヤの外周面を押圧する押圧部が発生していることを特徴とする駆動ワイヤ。
One end is connected to the output shaft of the driving means, the other end is connected to the input shaft of the driven means, and a flexible wire that transmits the power of the driving means to the driven means;
In the drive wire which is provided between the drive means and the driven means and comprises a cylindrical outer tube covering the flexible wire,
The flexible wire in use connected to the output shaft of the driving means and the input shaft of the driven means has a linear shape;
The outer tube in the natural state is provided with an elastically deformable curved portion,
Wherein in the state in which the flexible wire use state is inserted into the curved portion of the outer tube, the insertion of the flexible wires, wherein the outer tube is elastically deformed in a direction in which curvature of the curved portion becomes gentle And
A drive wire, wherein a pressing portion that presses the outer peripheral surface of the flexible wire is generated on an inner wall surface of the outer tube by an elastic restoring force of the outer tube.
前記使用状態の前記フレキシブルワイヤが挿通された前記アウタチューブの湾曲部の内壁面には、前記フレキシブルワイヤの外周面に摺接しながら前記フレキシブルワイヤを押
圧する突部が形成され、該突部が前記押圧部を構成していることを特徴とする請求項1記載の駆動ワイヤ。
The flexible wire is pressed against the inner wall surface of the curved portion of the outer tube through which the flexible wire in the used state is inserted while sliding on the outer peripheral surface of the flexible wire.
Is pressed projections forming, drive wire of claim 1, wherein the projecting portion is characterized that you have to configure the pressing portion.
JP2010005530A 2010-01-14 2010-01-14 Driving wire Expired - Fee Related JP5662028B2 (en)

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JPS5344750A (en) * 1976-10-02 1978-04-21 Nippon Cable Syst Inc Conduit for control cable
JPS62188610U (en) * 1986-05-21 1987-12-01
FR2864183B1 (en) * 2003-12-17 2007-04-06 Inderflex Technoflex DEVICE FOR TRANSMITTING A ROTATION MOTION COMPRISING A SINUY PATH SHEATH FOR A FLEXIBLE TREE
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