JP2008214008A - Slide fork device - Google Patents

Slide fork device Download PDF

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Publication number
JP2008214008A
JP2008214008A JP2007052685A JP2007052685A JP2008214008A JP 2008214008 A JP2008214008 A JP 2008214008A JP 2007052685 A JP2007052685 A JP 2007052685A JP 2007052685 A JP2007052685 A JP 2007052685A JP 2008214008 A JP2008214008 A JP 2008214008A
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Prior art keywords
fork
fixed
rotating body
longitudinal direction
sprocket
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JP2007052685A
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JP4967717B2 (en
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Yoshihiro Okazaki
吉洋 岡嵜
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Nakanishi Metal Works Co Ltd
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Nakanishi Metal Works Co Ltd
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Priority to JP2007052685A priority Critical patent/JP4967717B2/en
Priority to KR1020070133318A priority patent/KR101377333B1/en
Priority to CN2008100822867A priority patent/CN101254857B/en
Publication of JP2008214008A publication Critical patent/JP2008214008A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B65G1/04—Storage devices mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/0014—Gripping heads and other end effectors having fork, comb or plate shaped means for engaging the lower surface on a object to be transported
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/104—Programme-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • 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
    • F16H—GEARING
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Robotics (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide fork device capable of reducing the cost without providing any separate driving chain from an interlocking chain. <P>SOLUTION: Sprockets 12, 13 are provided on front and rear ends of a fixed fork 11. Sprockets 7, 9 (8, 10) are provided between the sprockets 12, 13. A driving sprocket 5 (6) is provided on a lower side between these sprockets. Sprockets 22, 23 are provided on front and rear ends of an intermediate fork 21. One end 3A of a chain 3 is fixed to a rear end of a fore end fork 31. The sprocket 13, the sprocket 9, the driving sprocket 5 and the sprocket 7 are successively stretched from the sprocket 22. The other end 3B is fixed to the front end of the intermediate fork 21. One end 4A of a chain 4 is fixed to a front end of the fore end fork 31. The sprocket 12, the sprocket 8, the driving sprocket 6 and the sprocket 10 are successively stretched from the sprocket 23, and the other end 4B is fixed to the rear end of the intermediate fork 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、荷物の移載装置に用いられるスライドフォーク装置の改良に関するものである。   The present invention relates to an improvement of a slide fork device used in a load transfer device.

コンベア、フォークリフト又はクレーン等の荷役機械に用いられ、荷の受け渡しを行う従来のスライドフォーク装置は、固定フォーク、固定フォークに対して長手方向にスライド可能に支持された中間フォーク、中間フォークに対して長手方向にスライド可能に支持された先端フォーク、中間フォークを固定フォークに対してスライドさせる駆動機構、及び、中間フォークのスライドに伴って先端フォークを中間フォークと同方向にスライドさせる連動機構等から構成される（例えば特許文献１参照。）。
例えば、特許文献１の図９の構成では、中間フォーク（中間アーム）には、連動機構である連動用チェーン（同期用チェーン）の一端が連結されており、連動用チェーンは、固定フォーク（テレスコベース）の左端側に支持されているスプロケットに巻き掛けられた後、反対側に引き出されて中間フォークの右端側に支持されているスプロケットを経由して先端フォーク（アーム板）の左端側に連結されている。そして、固定フォークには、一対のスプロケットが回転自在に設けられており、これらのスプロケット間には、中間フォークの中央位置で中間フォークに連結された駆動用チェーンが掛け渡され、駆動用チェーンが移動すると、中間フォークが固定フォークに対してスライド動作を行い、上記連動機構により固定フォークに対して中間フォークと先端フォークの移動ストロークが１対３の割合で連動して伸縮が行われる。 A conventional slide fork device that is used in a cargo handling machine such as a conveyor, a forklift, or a crane, and delivers a load is a fixed fork, an intermediate fork that is slidably supported in a longitudinal direction with respect to the fixed fork, and an intermediate fork Consists of a tip fork supported to be slidable in the longitudinal direction, a drive mechanism that slides the intermediate fork relative to the fixed fork, and an interlocking mechanism that slides the tip fork in the same direction as the intermediate fork as the intermediate fork slides (For example, refer to Patent Document 1).
For example, in the configuration shown in FIG. 9 of Patent Document 1, one end of an interlocking chain (synchronization chain), which is an interlocking mechanism, is connected to the intermediate fork (intermediate arm). After being wound on the sprocket supported on the left end side of the base), it is pulled out to the opposite side and connected to the left end side of the tip fork (arm plate) via the sprocket supported on the right end side of the intermediate fork Has been. A pair of sprockets are rotatably provided on the fixed fork, and a drive chain connected to the intermediate fork is spanned between these sprockets at the center position of the intermediate fork. When the intermediate fork moves, the intermediate fork slides on the fixed fork, and the interlocking mechanism causes the movement stroke of the intermediate fork and the tip fork to interlock with the fixed fork at a ratio of 1: 3.

特開平９−４０１１９号公報（図１−４、図９）Japanese Patent Laid-Open No. 9-40119 (FIGS. 1-4 and 9)

このような従来のスライドフォーク装置の構成では、例えば連動チェーン及び連動スプロケットにより構成される連動機構とは別に、中間フォークを固定フォークに対してスライドさせる駆動機構に使用され、回転駆動装置の回転力を伝達する例えば駆動用チェーン等の伝達機構が必要とされるため、連動用チェーンとは別の駆動用チェーン分のコストが増大するとともに、固定フォークの長手方向に広がる駆動用チェーンが存在するため、その占有スペースが増大する。   In the configuration of such a conventional slide fork device, for example, it is used for a drive mechanism that slides an intermediate fork with respect to a fixed fork separately from an interlock mechanism constituted by an interlock chain and an interlock sprocket. For example, a transmission mechanism such as a drive chain is required, which increases the cost of a drive chain other than the interlocking chain, and there is a drive chain extending in the longitudinal direction of the fixed fork. The occupied space increases.

そこで、本発明が前述の状況に鑑み、解決しようとするところは、連動用の伝達機構（連動用チェーン）とは別の駆動用の伝達機構（駆動用チェーン）を設ける必要がなく、コストの削減及び占有スペースの縮小を図ることができるスライドフォーク装置を提供する点にある。   Therefore, in view of the above-mentioned situation, the present invention intends to solve the problem that there is no need to provide a driving transmission mechanism (driving chain) separate from the interlocking transmission mechanism (interlocking chain). The object of the present invention is to provide a slide fork device capable of reducing the size and space occupied.

本発明に係るスライドフォーク装置は、前記課題解決のために、固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの後端部回転体、後回転体、駆動回転体及び前回転体の順に掛け渡し、その他端を前記中間フォークの長手方向前端部に固定し、第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの前端部回転体、前回転体、駆動回転体及び後回転体の順に掛け渡し、その他端を前記中間フォークの長手方向後端部に固定してなるものである。   In order to solve the above problems, the slide fork device according to the present invention supports a fixed fork, an intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and slidable in the longitudinal direction with respect to the intermediate fork. A slide fork device that is driven by a drive device and that expands and contracts in conjunction with the intermediate fork and the tip fork with respect to the fixed fork, at both front and rear ends in the longitudinal direction of the fixed fork. A front and rear end rotating body that rotates about a horizontal axis orthogonal to the longitudinal direction, and a front and rear rotating body that rotates about the horizontal axis between these end rotating bodies, and a lower side between these rotating bodies. A driving rotating body that rotates around the horizontal axis to which the output shaft of the driving device is connected is provided, and the horizontal forks at both front and rear ends in the longitudinal direction of the intermediate fork Front and rear end rotating bodies rotating around are provided, one end of the first hanging member is fixed to the longitudinal rear end of the front fork, and the first hanging member is removed from the front end rotating body of the intermediate fork. , The rear end rotary body of the fixed fork, the rear rotary body, the drive rotary body and the front rotary body are spanned in this order, the other end is fixed to the longitudinal front end of the intermediate fork, and one end of the second hanging member is A front end rotating body, a front rotating body, a driving rotating body, and a rear rotating body of the fixed fork are fixed to the front end of the front fork in the longitudinal direction, and the second hanging member is moved from the rear end rotating body of the intermediate fork. The other end is fixed to the longitudinal rear end of the intermediate fork.

また、本発明に係るスライドフォーク装置は、前記課題解決のために、固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの前回転体、駆動回転体、後回転体及び後端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定し、第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの後回転体、駆動回転体、前回転体及び前端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定してなるものである。   In order to solve the above problems, the slide fork device according to the present invention is a fixed fork, an intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and slidable in the longitudinal direction with respect to the intermediate fork. A slide fork device that has a front end fork supported by the front end and is driven by a drive device, and the intermediate fork and the front end fork extend and contract with respect to the fixed fork, both front and rear ends in the longitudinal direction of the fixed fork The front and rear end rotating bodies rotating around a horizontal axis perpendicular to the longitudinal direction are provided in the section, and the front and rear rotating bodies rotating around the horizontal axis are provided between the end rotating bodies. A drive rotating body that rotates around the horizontal axis to which the output shaft of the drive device is coupled is provided on the side, and the front and rear ends in the longitudinal direction of the intermediate fork Front and rear end rotating bodies that rotate around a horizontal axis are provided, one end of the first hanging member is fixed to the longitudinal rear end of the front fork, and the first hanging member is rotated at the front end of the intermediate fork. A front rotating body, a driving rotating body, a rear rotating body, and a rear end rotating body of the fixed fork in order from the body, and the other end is fixed to the longitudinal central portion of the intermediate fork. One end is fixed to the front end of the front fork in the longitudinal direction, and the second hanging member is moved from the rear end rotating body of the intermediate fork to the rear rotating body, drive rotating body, front rotating body, and front end of the fixed fork. The rotating body is spanned in this order, and the other end is fixed to the central portion in the longitudinal direction of the intermediate fork.

ここで、前記回転体がスプロケット又はプーリであり、前記掛架部材がチェーン又は歯付ベルトであると好ましい。   Here, it is preferable that the rotating body is a sprocket or a pulley, and the hanging member is a chain or a toothed belt.

本発明に係るスライドフォーク装置によれば、固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの後端部回転体、後回転体、駆動回転体及び前回転体の順に掛け渡し、その他端を前記中間フォークの長手方向前端部に固定し、第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの前端部回転体、前回転体、駆動回転体及び後回転体の順に掛け渡し、その他端を前記中間フォークの長手方向後端部に固定してなるので、上記のように引き回される第１掛架部材及び第２掛架部材が、連動機構及び駆動機構としての伝達機構を兼ね備えており、連動用の伝達機構（連動用掛架部材）と駆動用の伝達機構（駆動用掛架部材）とを別々に設ける必要がないため、コストの削減及び占有スペースの縮小を図ることができる。   According to the slide fork device of the present invention, the fixed fork, the intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and the tip fork supported to be slidable in the longitudinal direction with respect to the intermediate fork A slide fork device in which the intermediate fork and the tip fork are extended and retracted in conjunction with the fixed fork, driven by a driving device, and perpendicular to the longitudinal direction at both longitudinal front and rear ends of the fixed fork Front and rear end rotating bodies rotating around the horizontal axis are provided, front and rear rotating bodies rotating around the horizontal axis are provided between the end rotating bodies, and the output of the driving device is provided below the rotating bodies. A drive rotating body that rotates around the horizontal axis to which the shaft is connected is provided, and rotates around the horizontal axis at both longitudinal front and rear ends of the intermediate fork. Front and rear end rotating bodies are provided, one end of the first hanging member is fixed to the rear end portion in the longitudinal direction of the tip fork, and the first hanging member is moved from the front end rotating body of the intermediate fork to the fixed fork. The rear end rotating body, the rear rotating body, the drive rotating body, and the front rotating body are spanned in this order, the other end is fixed to the front end portion in the longitudinal direction of the intermediate fork, and one end of the second hanging member is connected to the front end fork. The second hanging member is fixed to the front end portion in the longitudinal direction, and the second end member is passed from the rear end rotating body of the intermediate fork in the order of the front end rotating body, the front rotating body, the driving rotating body, and the rear rotating body of the fixed fork. Since the other end is fixed to the longitudinal rear end portion of the intermediate fork, the first hanging member and the second hanging member that are routed as described above are the transmission mechanism as the interlocking mechanism and the driving mechanism. With a transmission mechanism for interlocking (link for interlocking It is not necessary to materials) and provided for driving the transmission mechanism and a (driving entraining member) separately, thus reducing the cost reduction and space occupied.

また、本発明に係るスライドフォーク装置によれば、固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの前回転体、駆動回転体、後回転体及び後端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定し、第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの後回転体、駆動回転体、前回転体及び前端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定してなるので、上記のように引き回される第１掛架部材及び第２掛架部材が、連動機構及び駆動機構としての伝達機構を兼ね備えており、連動用の伝達機構（連動用掛架部材）と駆動用の伝達機構（駆動用掛架部材）とを別々に設ける必要がないため、コストの削減及び占有スペースの縮小を図ることができる。   According to the slide fork device of the present invention, the fixed fork, the intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and the tip supported to be slidable in the longitudinal direction with respect to the intermediate fork A slide fork device having a fork and driven by a driving device, wherein the intermediate fork and the tip fork extend and contract with respect to the fixed fork, and the longitudinal direction of both ends of the fixed fork in the longitudinal direction Front and rear end rotating bodies rotating around a horizontal axis orthogonal to the front rotating body, a front and rear rotating body rotating around the horizontal axis between the end rotating bodies, and the drive device below the rotating bodies. A drive rotating body that rotates around the horizontal axis to which the output shaft of the intermediate fork is connected is provided at both front and rear ends in the longitudinal direction of the intermediate fork around the horizontal axis. An end rotating body before and after rolling is provided, one end of the first hanging member is fixed to a longitudinal rear end portion of the tip fork, and the first hanging member is removed from the front end rotating body of the intermediate fork. The fixed fork has a front rotating body, a drive rotating body, a rear rotating body, and a rear end rotating body in this order, and the other end is fixed to the longitudinal center of the intermediate fork, and one end of the second hanging member is connected to the front end. The second hanging member is fixed to the front end of the fork in the longitudinal direction, and the rear end rotating body of the intermediate fork, the rear rotating body of the fixed fork, the driving rotating body, the front rotating body, and the front end rotating body in this order. Since the other end is fixed to the central portion in the longitudinal direction of the intermediate fork, the first hanging member and the second hanging member that are routed as described above are transmitted as the interlocking mechanism and the driving mechanism. It also has a mechanism, a transmission mechanism for interlocking (interlocking Entraining members) and it is not necessary to separately provide drive transmission mechanism and a (driving entraining member), thus reducing the cost reduction and space occupied.

さらに、前記回転体がスプロケット又はプーリであり、前記掛架部材がチェーン又は歯付ベルトであると、前記効果に加え、回転体及び掛架部材を、信頼性の高い汎用部品を用いてより簡素に構成することができるため、コスト低減化を図ることができるともに、中間フォーク及び先端フォークが連動して伸縮する動作の信頼性を向上することができる。   Furthermore, when the rotating body is a sprocket or a pulley and the hanging member is a chain or a toothed belt, in addition to the above effects, the rotating body and the hanging member can be simplified using a highly reliable general-purpose component. Therefore, the cost can be reduced and the reliability of the operation in which the intermediate fork and the tip fork extend and contract in conjunction with each other can be improved.

次に本発明の実施の形態を添付図面に基づき詳細に説明するが、本発明は、添付図面に示された形態に限定されず特許請求の範囲に記載の要件を満たす実施形態の全てを含むものである。なお、本明細書においては、各フォークが伸びる一方向（図１及び図２中の矢印Ｆ参照。）を前方とし、前方に向かって左右を左右とし、前方から見た図を正面図とする。   Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste. In this specification, one direction (see arrow F in FIGS. 1 and 2) in which each fork extends is defined as the front, the left and right as viewed forward, and the front view as viewed from the front. .

図１〜図４は、本発明の実施の形態に係るスライドフォーク装置の構成を示す説明図であり、図１は縦断右側面図、図２は分解斜視図、図３は縦断正面図、図４は縦断背面図である。また、図５は中間フォーク及び先端フォークの伸縮動作の説明図であり、図５（ａ）は中間フォーク及び先端フォークが縮んだ状態を、図５（ｂ）は中間フォーク及び先端フォークが伸びた状態を示している。なお、図５においては、掛架部材であるチェーンの引き回し経路を分かりやすくするために各フォークの間隔を空けて示している。
図において、スライドフォーク装置１は、固定フォーク１１、固定フォーク１１に対して長手方向にスライド可能に支持された中間フォーク２１、中間フォーク２１に対して長手方向にスライド可能に支持された先端フォーク３１、中間フォーク２１及び先端フォーク３１を伸縮駆動する回転駆動装置２、並びに、連動機構及び駆動機構としての伝達機構を兼ね備えた掛架部材であるチェーン３，４等からなる。 1-4 is explanatory drawing which shows the structure of the slide fork apparatus based on Embodiment of this invention, FIG. 1 is a vertical right view, FIG. 2 is a disassembled perspective view, FIG. 3 is a vertical front view, FIG. 4 is a longitudinal rear view. 5 is an explanatory view of the expansion and contraction operation of the intermediate fork and the tip fork. FIG. 5 (a) shows a state in which the intermediate fork and the tip fork are contracted, and FIG. 5 (b) shows an extension of the intermediate fork and the tip fork. Indicates the state. Note that in FIG. 5, the forks are shown at intervals in order to make it easy to understand the routing route of the chain as the hanging member.
In the figure, a slide fork device 1 includes a fixed fork 11, an intermediate fork 21 supported so as to be slidable in the longitudinal direction relative to the fixed fork 11, and a tip fork 31 supported so as to be slidable in the longitudinal direction relative to the intermediate fork 21. The intermediate fork 21 and the tip fork 31 are driven to extend and contract, and the chain 3, 4 and the like are suspension members having both a linkage mechanism and a transmission mechanism as a drive mechanism.

図１〜図４に示すように、固定フォーク１１は、正面視において上向きに開口した略コ字状であり、長手方向（前後方向）の前端部には長手方向に直交する水平軸（左右方向軸）まわりに回転する前端部回転体である前端部スプロケット１２が、後端部には左右方向軸まわりに回転する後端部回転体である後端部スプロケット１３が配設され、前端部スプロケット１２は前記開口内の右側に、後端部スプロケット１３は前記開口内の左側にシフトしている。
また、前端部スプロケット１２と後端部スプロケット１３との間である固定フォーク１１の前後方向の略中央には、左右方向軸まわりに回転する左右同軸の前回転体である前スプロケット７，８及び左右同軸の後回転体である後スプロケット９，１０が前後に配設され、これら前後の回転体間の下側に回転駆動装置２の出力軸が連結される左右方向軸まわりに回転する左右同軸の駆動回転体である駆動スプロケット５，６がブラケット２Ａ（図２参照。）を介して固定フォーク１１の基体に取り付けられる。なお、回転駆動装置２は、例えばハイポイドギヤやベベルキヤ等を用いた直交軸構成のギヤドモータであり、駆動スプロケット５，６はカバー２Ｂで被われる。
さらに、固定フォーク１１の左右側壁内面には、前記開口内に突出する垂直ローラ１４，…及び水平ローラ１５，…が設けられる。 As shown in FIGS. 1 to 4, the fixed fork 11 has a substantially U-shape opened upward in a front view, and a horizontal axis (left-right direction) orthogonal to the longitudinal direction at the front end in the longitudinal direction (front-rear direction). A front end sprocket 12 that is a front end rotating body that rotates about the axis) and a rear end sprocket 13 that is a rear end rotating body that rotates about the left-right axis are disposed at the rear end. 12 is shifted to the right in the opening, and the rear end sprocket 13 is shifted to the left in the opening.
Further, at the approximate center in the front-rear direction of the fixed fork 11 between the front end sprocket 12 and the rear end sprocket 13, front sprockets 7, 8 that are left and right coaxial front rotating bodies that rotate about the left and right axis, and Rear sprockets 9 and 10 that are rear-rotating bodies that are coaxial on the left and right are arranged on the front and rear sides, and the left-right coaxial that rotates around the left-right axis to which the output shaft of the rotary drive device 2 is coupled below the front and rear rotating bodies. The drive sprockets 5 and 6 which are the drive rotating bodies are attached to the base of the fixed fork 11 via the bracket 2A (see FIG. 2). The rotary drive device 2 is a geared motor having an orthogonal shaft configuration using, for example, a hypoid gear or a bevel carrier, and the drive sprockets 5 and 6 are covered with a cover 2B.
Further, the inner surfaces of the left and right side walls of the fixed fork 11 are provided with vertical rollers 14... And horizontal rollers 15.

中間フォーク２１は、左右方向の中央の基体２４の左右に、レール体２６及び２５が固定され、基体２４の長手方向（前後方向）の前端部には左右方向軸まわりに回転する前端部回転体である前端部スプロケット２２が、後端部には左右方向軸まわりに回転する後端部回転体である後端部スプロケット２３が配設され、前端部スプロケット２２は基体２４の左側に、後端部スプロケット２３は基体２４の右側にシフトしている。
また、中間フォーク２１の下面前端部には掛架部材であるチェーン３の端末３Ｂが固定されるとともに、中間フォーク２１の下面後端部には掛架部材であるチェーン４の端末４Ｂが固定される。
さらに、レール体２５の右外側面には前後方向に延びる上下二条のガイド溝２５Ａ，２５Ｂが、レール体２６の左外側面には前後方向に延びる上下二条のガイド溝２６Ａ，２６Ｂが形成される。 The intermediate fork 21 has rail bodies 26 and 25 fixed to the left and right of the central base 24 in the left-right direction, and a front end rotating body that rotates about a left-right axis at the front end in the longitudinal direction (front-rear direction) of the base 24. The rear end sprocket 22 is a rear end sprocket 23 that is a rear end rotating body that rotates about the left-right axis at the rear end, and the front end sprocket 22 is located on the left side of the base 24 and the rear end sprocket 22. The sprocket 23 is shifted to the right side of the base 24.
A terminal 3B of the chain 3 that is a hanging member is fixed to the front lower end portion of the intermediate fork 21, and a terminal 4B of the chain 4 that is a hanging member is fixed to the rear lower end portion of the intermediate fork 21. The
Furthermore, two upper and lower guide grooves 25A and 25B extending in the front-rear direction are formed on the right outer surface of the rail body 25, and two upper and lower guide grooves 26A and 26B extending in the front-rear direction are formed on the left outer surface of the rail body 26. .

先端フォーク３１は、正面視において下向きに開口した略コ字状であり、その上面に前後のワーク支持具３２，３３が設けられる。
また、先端フォーク３１の下面前端部には、掛架部材であるチェーン４の端末４Ａが圧縮コイルばね３８により前方の支持片３６に向かう方向（図１中の矢印Ｔ１参照。）へ弾性付勢されて取り付けられ、その下面後端部には、掛架部材であるチェーン３の端末３Ａが圧縮コイルばね３９により後方の支持片３７に向かう方向（図１中の矢印Ｔ２参照。）へ弾性付勢されて取り付けられる。したがって、後述するように引き回されるチェーン３及び４に張力を与えることができる。なお、チェーン３の端末３Ａの取付位置は前記開口内の左側に、チェーン４の端末４Ａの取付位置は前記開口内の右側にシフトしている。
さらに、先端フォーク３１の左右側壁内面には、前記開口内に突出する垂直ローラ３４，…及び水平ローラ３５，…が設けられる。 The front fork 31 has a substantially U-shape opening downward in a front view, and front and rear workpiece supports 32 and 33 are provided on the upper surface thereof.
Further, at the front lower end portion of the tip fork 31, the end 4 </ b> A of the chain 4 that is a hanging member is elastically biased in a direction (see arrow T <b> 1 in FIG. 1) toward the front support piece 36 by the compression coil spring 38. The end 3A of the chain 3 as a hanging member is elastically attached to the rear end of the lower surface by a compression coil spring 39 in the direction toward the rear support piece 37 (see arrow T2 in FIG. 1). It is attached with force. Accordingly, tension can be applied to the chains 3 and 4 that are routed as will be described later. The attachment position of the end 3A of the chain 3 is shifted to the left side in the opening, and the attachment position of the end 4A of the chain 4 is shifted to the right side in the opening.
Further, the inner surfaces of the left and right side walls of the tip fork 31 are provided with vertical rollers 34,... And horizontal rollers 35,.

中間フォーク２１の下側左右のガイド溝２６Ｂ，２５Ｂには、固定フォーク１１の左右の垂直ローラ１４，…及び水平ローラ１５，…が係合し、中間フォーク２１の上側左右のガイド溝２６Ａ，２５Ａには、先端フォーク３１の左右の垂直ローラ３４，…及び水平ローラ３５，…が係合するため、このような簡素な構成により、前記のとおり、中間フォーク２１は固定フォーク１１に対して前後方向にスライド可能に支持され、先端フォーク３１は中間フォーク２１に対して前後方向にスライド可能に支持される。   The left and right guide grooves 26B, 25B on the lower side of the intermediate fork 21 are engaged with the left and right vertical rollers 14,... And the horizontal roller 15,. Since the left and right vertical rollers 34,... And the horizontal rollers 35,... Of the tip fork 31 are engaged with each other, the intermediate fork 21 is in the front-rear direction with respect to the fixed fork 11 as described above. The tip fork 31 is supported so as to be slidable in the front-rear direction with respect to the intermediate fork 21.

次に、チェーン３，４の引き回し及びスライドフォーク装置１の伸縮動作について説明する。図５に示すように、チェーン３（一点鎖線）は、中間フォーク２１の前端部スプロケット２２から、固定フォーク１１の後端部スプロケット１３、後スプロケット９、駆動スプロケット５及び前スプロケット７の順に掛け渡され、その一端３Ａが前記のとおり先端フォーク３１の後端部に、他端３Ｂが前記のとおり中間フォーク２１の前端部に固定される。また、チェーン４（破線）は、中間フォーク２１の後端部スプロケット２３から、固定フォーク１１の前端部スプロケット１２、前スプロケット８、駆動スプロケット６及び後スプロケット１０の順に掛け渡され、その一端４Ａが前記のとおり先端フォーク３１の前端部に、他端４Ｂが前記のとおり中間フォーク２１の後端部に固定される。   Next, the drawing of the chains 3 and 4 and the expansion / contraction operation of the slide fork device 1 will be described. As shown in FIG. 5, the chain 3 (one-dot chain line) spans from the front end sprocket 22 of the intermediate fork 21 to the rear end sprocket 13 of the fixed fork 11, the rear sprocket 9, the drive sprocket 5 and the front sprocket 7. The one end 3A is fixed to the rear end portion of the tip fork 31 as described above, and the other end 3B is fixed to the front end portion of the intermediate fork 21 as described above. The chain 4 (broken line) is spanned from the rear end sprocket 23 of the intermediate fork 21 to the front end sprocket 12 of the fixed fork 11, the front sprocket 8, the drive sprocket 6, and the rear sprocket 10 in this order. As described above, the other end 4B is fixed to the front end of the front fork 31 and the rear end of the intermediate fork 21 as described above.

したがって、図５（ａ）に示す中間フォーク２１及び先端フォーク３１が縮んだ状態において、回転駆動装置２により駆動スプロケット５をＡ１方向に駆動すると、駆動スプロケット５とチェーン３を介して連動する、固定フォーク１１の前スプロケット７、後スプロケット９及び後端部スプロケット１３並びに中間フォーク２１の前端部スプロケット２２が、それぞれＢ１方向、Ｃ１方向、Ｄ１方向、Ｅ１方向に回転し、先端フォーク３１はＦ１方向に移動する。このようにしてチェーン３により中間フォーク２１及び先端フォーク３１は連動し、図５（ｂ）に示す中間フォーク２１及び先端フォーク３１が伸びた状態となる。   Therefore, when the drive sprocket 5 is driven in the A1 direction by the rotary drive device 2 in a state where the intermediate fork 21 and the tip fork 31 shown in FIG. The front sprocket 7, the rear sprocket 9, the rear end sprocket 13 of the fork 11, and the front end sprocket 22 of the intermediate fork 21 rotate in the B1, C1, D1, and E1 directions, respectively, and the front fork 31 moves in the F1 direction. Moving. In this way, the intermediate fork 21 and the tip fork 31 are interlocked by the chain 3, and the intermediate fork 21 and the tip fork 31 shown in FIG.

図５（ｂ）の状態において、回転駆動装置２により駆動スプロケット６をＡ２方向に駆動すると、駆動スプロケット６とチェーン４を介して連動する、固定フォーク１１の後スプロケット１０、前スプロケット８及び前端部スプロケット１２並びに中間フォーク２１の後端部スプロケット２３が、それぞれＢ２方向、Ｃ２方向、Ｄ２方向、Ｅ２方向に回転し、先端フォーク３１はＦ２方向に移動する。このようにしてチェーン３により中間フォーク２１及び先端フォーク３１は連動し、図５（ａ）に示す中間フォーク２１及び先端フォーク３１が縮んだ状態となる。
さらに回転駆動装置２により駆動スプロケット６をＡ２方向に駆動すると、中間フォーク２１及び先端フォーク３１は図５（ｂ）と逆方向に伸びる方向に移動する。
このように中間フォーク２１及び先端フォーク３１が図５（ｂ）と逆方向に伸びた状態から、これらフォーク２１，３１を縮める動作は、前記のように回転駆動装置２により駆動スプロケット６をＡ１方向に駆動することにより行うことができる。 In the state of FIG. 5B, when the drive sprocket 6 is driven in the A2 direction by the rotary drive device 2, the rear sprocket 10, the front sprocket 8 and the front end portion of the fixed fork 11 interlocked with the drive sprocket 6 via the chain 4. The sprocket 12 and the rear end sprocket 23 of the intermediate fork 21 rotate in the B2, C2, D2, and E2 directions, respectively, and the front fork 31 moves in the F2 direction. In this way, the intermediate fork 21 and the tip fork 31 are interlocked by the chain 3, and the intermediate fork 21 and the tip fork 31 shown in FIG.
When the drive sprocket 6 is further driven in the A2 direction by the rotary drive device 2, the intermediate fork 21 and the tip fork 31 move in a direction extending in the direction opposite to that shown in FIG.
As described above, the operation of contracting the forks 21 and 31 from the state in which the intermediate fork 21 and the tip fork 31 extend in the direction opposite to that in FIG. 5B is performed by moving the drive sprocket 6 in the A1 direction by the rotary drive device 2 as described above. This can be done by driving the

以上のような構成によれば、スプロケットに架け渡され引き回されるチェーン３及び４が、連動機構及び駆動機構としての伝達機構を兼ね備えており、連動用の伝達機構（連動用チェーン）と駆動用の伝達機構（駆動用チェーン）とを別々に設ける必要がないため、コストの削減及び占有スペースの縮小を図ることができる。   According to the configuration as described above, the chains 3 and 4 that are spanned and drawn around the sprocket have both the interlocking mechanism and the transmission mechanism as the driving mechanism, and the interlocking transmission mechanism (the interlocking chain) and the drive Since there is no need to provide a separate transmission mechanism (drive chain), it is possible to reduce costs and occupy space.

図６は、掛架部材であるチェーンの引き回し経路が異なる構成例を示す概略右側面図であり、引き回し経路を分かりやすくするために各フォークの間隔を空けて示している。また、図５と同一符号は同一又は相当部分を示している。
図６に示すスライドフォーク装置１おいては、チェーン３（一点鎖線）の一端３Ａを先端フォーク３１の長手方向後端部に固定し、該チェーン３を中間フォーク２１の前端部スプロケット２２から、固定フォーク１１の前スプロケット７、駆動スプロケット５、後スプロケット９及び後端部スプロケット１３の順に掛け渡し、チェーン３の他端３Ｂを中間フォーク２１の長手方向中央部に固定している。
また、チェーン４（破線）の一端４Ａを先端フォーク３１の長手方向前端部に固定し、該チェーン４を中間フォーク２１の後端部スプロケット２３から、固定フォーク１１の後スプロケット１０、駆動スプロケット６、前スプロケット８及び前端部スプロケット１２の順に掛け渡し、チェーン４の他端４Ｂを中間フォーク２１の長手方向中央部に固定している。
このようなチェーン３，４の引き回し経路を持つ構成からなるスライドフォーク装置１も、図５のようなチェーン３，４の引き回し経路を持つ構成からなるスライドフォーク装置１と同様の作用効果を奏する。 FIG. 6 is a schematic right side view showing a configuration example in which the routing route of the chain that is the hanging member is different, and shows fork intervals so as to make the routing route easier to understand. The same reference numerals as those in FIG. 5 indicate the same or corresponding parts.
In the slide fork device 1 shown in FIG. 6, one end 3 </ b> A of the chain 3 (one-dot chain line) is fixed to the rear end in the longitudinal direction of the tip fork 31, and the chain 3 is fixed from the front end sprocket 22 of the intermediate fork 21. The front sprocket 7, the drive sprocket 5, the rear sprocket 9, and the rear end sprocket 13 of the fork 11 are spanned in this order, and the other end 3 </ b> B of the chain 3 is fixed to the longitudinal center of the intermediate fork 21.
Further, one end 4A of the chain 4 (broken line) is fixed to the front end portion in the longitudinal direction of the front fork 31, and the chain 4 is connected from the rear end sprocket 23 of the intermediate fork 21 to the rear sprocket 10 of the fixed fork 11, the drive sprocket 6, The front sprocket 8 and the front end sprocket 12 are spanned in this order, and the other end 4B of the chain 4 is fixed to the central portion in the longitudinal direction of the intermediate fork 21.
The slide fork device 1 having the configuration having the routing path of the chains 3 and 4 has the same effect as the slide fork device 1 having the configuration having the routing path of the chains 3 and 4 as shown in FIG.

以上の説明においては、回転体がスプロケットであり、掛架部材がチェーンである場合について説明したが、本発明における回転体及び掛架部材は、このような構成に限定されるものではなく、回転体をプーリとし、掛架部材を歯付ベルトとしてもよい。回転体をスプロケット又はプーリとし、掛架部材をチェーン又は歯付ベルトとすると、回転体及び掛架部材を、信頼性の高い汎用部品を用いてより簡素に構成することができるため、コスト低減化を図ることができるともに、中間フォーク及び先端フォークが連動して伸縮する動作の信頼性を向上することができる。   In the above description, the rotating body is a sprocket and the hanging member is a chain. However, the rotating body and the hanging member in the present invention are not limited to such a configuration. The body may be a pulley, and the hanging member may be a toothed belt. If the rotating body is a sprocket or pulley and the hanging member is a chain or a toothed belt, the rotating body and the hanging member can be configured more simply using highly reliable general-purpose parts, thus reducing costs. In addition, it is possible to improve the reliability of the operation in which the intermediate fork and the tip fork expand and contract in conjunction with each other.

本発明の実施の形態に係るスライドフォーク装置の構成を示す縦断右側面図である。It is a vertical right side view showing the composition of the slide fork device concerning an embodiment of the invention. 同じく分解斜視図である。It is an exploded perspective view similarly. 同じく縦断正面図である。It is a longitudinal front view similarly. 同じく縦断背面図である。It is a longitudinal rear view similarly. 中間フォーク及び先端フォークの伸縮動作の説明図であり、（ａ）は中間フォーク及び先端フォークが縮んだ状態を、（ｂ）は中間フォーク及び先端フォークが伸びた状態を示している。It is explanatory drawing of the expansion-contraction operation | movement of an intermediate fork and a front-end fork, (a) has shown the state which the intermediate fork and the front-end fork contracted, (b) has shown the state which the intermediate fork and the front-end fork extended. 掛架部材の引き回し経路が異なる構成例を示す概略右側面図である。It is a schematic right view which shows the structural example from which the routing route of a hanging member differs.

符号の説明Explanation of symbols

１ スライドフォーク装置
２ 回転駆動装置
２Ａ ブラケット
２Ｂ カバー
３，４ チェーン（掛架部材）
３Ａ，３Ｂ，４Ａ，４Ｂ 端末
５，６ 駆動スプロケット（駆動回転体）
７，８ 前スプロケット（前回転体）
９，１０ 後スプロケット（後回転体）
１１ 固定フォーク
１２ 前端部スプロケット（前端部回転体）
１３ 後端部スプロケット（後端部回転体）
１４ 垂直ローラ
１５ 水平ローラ
２１ 中間フォーク
２２ 前端部スプロケット（前端部回転体）
２３ 後端部スプロケット（後端部回転体）
２４ 基体
２５，２６ レール体
２５Ａ，２５Ｂ，２６Ａ，２６Ｂ ガイド溝
３１ 先端フォーク
３２，３３ ワーク支持具
３４ 垂直ローラ
３５ 水平ローラ
３６，３７ 支持片
３８，３９ 圧縮コイルばね
1 Slide Fork Device 2 Rotation Drive Device 2A Bracket 2B Cover 3, 4 Chain (Hanging Member)
3A, 3B, 4A, 4B Terminals 5, 6 Drive sprocket (drive rotor)
7,8 Front sprocket (front rotating body)
9,10 Rear sprocket (rear rotating body)
11 fixed fork 12 front end sprocket (front end rotating body)
13 Rear end sprocket (rear end rotating body)
14 Vertical roller 15 Horizontal roller 21 Intermediate fork 22 Front end sprocket (front end rotating body)
23 Rear end sprocket (rear end rotating body)
24 Base body 25, 26 Rail body 25A, 25B, 26A, 26B Guide groove 31 Tip fork 32, 33 Work support 34 Vertical roller 35 Horizontal roller 36, 37 Support piece 38, 39 Compression coil spring

Claims (3)

固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、
前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、
前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、
第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの後端部回転体、後回転体、駆動回転体及び前回転体の順に掛け渡し、その他端を前記中間フォークの長手方向前端部に固定し、
第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの前端部回転体、前回転体、駆動回転体及び後回転体の順に掛け渡し、その他端を前記中間フォークの長手方向後端部に固定してなるスライドフォーク装置。 A fixed fork, an intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and a tip fork supported to be slidable in the longitudinal direction with respect to the intermediate fork; A slide fork device in which the intermediate fork and the tip fork extend and contract with respect to the fork,
Front and rear end rotating bodies that rotate about a horizontal axis orthogonal to the longitudinal direction are provided at both front and rear end portions of the fixed fork in the longitudinal direction, and the front and rear rotating bodies that rotate about the horizontal axis between these end rotating bodies. A drive rotator that rotates around the horizontal axis to which the output shaft of the drive device is coupled is provided below the rotator,
The front and rear end rotating bodies that rotate around the horizontal axis are provided at both front and rear ends in the longitudinal direction of the intermediate fork,
One end of the first hanging member is fixed to the longitudinal rear end of the front fork, and the first hanging member is moved from the front end rotating body of the intermediate fork to the rear end rotating body of the fixed fork and the rear rotating The body, the drive rotator and the front rotator in this order, and fix the other end to the front end in the longitudinal direction of the intermediate fork,
One end of the second hanging member is fixed to the front end portion in the longitudinal direction of the tip fork, and the second hanging member is moved from the rear end rotating body of the intermediate fork to the front end rotating body and the front rotating body of the fixed fork. A slide fork device in which the drive rotating body and the rear rotating body are arranged in this order and the other end is fixed to the rear end portion in the longitudinal direction of the intermediate fork. 固定フォーク、該固定フォークに対して長手方向にスライド可能に支持された中間フォーク、該中間フォークに対して長手方向にスライド可能に支持された先端フォークを有し、駆動装置により駆動され、前記固定フォークに対して前記中間フォーク及び先端フォークが連動して伸縮するスライドフォーク装置であって、
前記固定フォークの長手方向の前後両端部に、長手方向に直交する水平軸まわりに回転する前後の端部回転体を設け、これら端部回転体間に前記水平軸まわりに回転する前後の回転体を設け、これら回転体間の下側に前記駆動装置の出力軸が連結される前記水平軸まわりに回転する駆動回転体を設け、
前記中間フォークの長手方向の前後両端部に、前記水平軸まわりに回転する前後の端部回転体を設け、
第１掛架部材の一端を前記先端フォークの長手方向後端部に固定し、該第１掛架部材を前記中間フォークの前端部回転体から、前記固定フォークの前回転体、駆動回転体、後回転体及び後端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定し、
第２掛架部材の一端を前記先端フォークの長手方向前端部に固定し、該第２掛架部材を前記中間フォークの後端部回転体から、前記固定フォークの後回転体、駆動回転体、前回転体及び前端部回転体の順に掛け渡し、その他端を前記中間フォークの長手方向中央部に固定してなるスライドフォーク装置。 A fixed fork, an intermediate fork supported to be slidable in the longitudinal direction with respect to the fixed fork, and a tip fork supported to be slidable in the longitudinal direction with respect to the intermediate fork; A slide fork device in which the intermediate fork and the tip fork extend and contract with respect to the fork,
Front and rear end rotating bodies that rotate about a horizontal axis orthogonal to the longitudinal direction are provided at both front and rear end portions of the fixed fork in the longitudinal direction, and the front and rear rotating bodies that rotate about the horizontal axis between these end rotating bodies. A drive rotator that rotates around the horizontal axis to which the output shaft of the drive device is coupled is provided below the rotator,
The front and rear end rotating bodies that rotate around the horizontal axis are provided at both front and rear ends in the longitudinal direction of the intermediate fork,
One end of the first hanging member is fixed to the longitudinal rear end of the front fork, and the first hanging member is moved from the front end rotating body of the intermediate fork to the front rotating body, the driving rotating body of the fixed fork, The rear rotating body and the rear end rotating body are spanned in this order, and the other end is fixed to the central portion in the longitudinal direction of the intermediate fork,
One end of the second hanging member is fixed to the front end in the longitudinal direction of the tip fork, and the second hanging member is moved from the rear end rotating body of the intermediate fork to the rear rotating body, the driving rotating body of the fixed fork, A slide fork device in which a front rotating body and a front end rotating body are spanned in this order, and the other end is fixed to the central portion in the longitudinal direction of the intermediate fork. 前記回転体がスプロケット又はプーリであり、前記掛架部材がチェーン又は歯付ベルトである請求項１又は２記載のスライドフォーク装置。
The slide fork device according to claim 1 or 2, wherein the rotating body is a sprocket or a pulley, and the hanging member is a chain or a toothed belt.
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CN101254857A (en) 2008-09-03
KR20080080902A (en) 2008-09-05

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