JPS60178194A - Traction winding device - Google Patents
Traction winding deviceInfo
- Publication number
- JPS60178194A JPS60178194A JP3677284A JP3677284A JPS60178194A JP S60178194 A JPS60178194 A JP S60178194A JP 3677284 A JP3677284 A JP 3677284A JP 3677284 A JP3677284 A JP 3677284A JP S60178194 A JPS60178194 A JP S60178194A
- Authority
- JP
- Japan
- Prior art keywords
- drive gear
- claw
- gear
- metal fitting
- pinion
- 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
- Iron Core Of Rotating Electric Machines (AREA)
- Primary Cells (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は遊転機構に安全装置を有する牽引巻上装置に関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a traction and hoisting device having a safety device in its idle mechanism.
従来の牽引巻上装置に於−では、無負荷時にピニオンと
中間従動歯車との噛み合いを外して、ヂ工−ンを所定の
長さに迅速に調整できるように逆転機構が設けられてい
る。しかし、巻上げ、巻下げ作業を行なっている時に、
遊転機構を誤操作すると、ロードシーブが自由回転し得
る状態となり、吊り上げられている荷物が落下する事故
が発生して危険である。In conventional traction and hoisting devices, a reversing mechanism is provided to disengage the pinion and the intermediate driven gear when no load is applied so that the gear can be quickly adjusted to a predetermined length. However, when hoisting and lowering,
If the free rotation mechanism is operated incorrectly, the load sheave will be in a state where it can freely rotate, causing a dangerous accident in which the lifted load may fall.
本発明は、このような事故を未然に確実に防止できる安
全機構を有する牽引巻上装置の提供を目的とし、その特
徴とする処は、切換駆動歯車が巻上げ・巻下げ状態の爪
金具の爪片に係合したとき、該爪片の側面が対向する係
止段部を該切換駆動歯車に形成した点にある。The present invention aims to provide a traction and hoisting device having a safety mechanism that can reliably prevent such accidents. The switching drive gear is provided with a locking step portion that faces the side surfaces of the claw pieces when the claw pieces are engaged with each other.
以下、図示の実施例に基づき本発明を詳説する。Hereinafter, the present invention will be explained in detail based on illustrated embodiments.
第１図〜第４図に於て、操作用のハンドル１に、回転方
向切換用爪金具２及び該爪金具２の位置を保持する弾性
押圧部材３が取付けられ、かつ該ハンドル１の揺動によ
り爪金具２を介して左又は右方向に回転される切換駆動
歯車４が、駆動歯車軸７に外嵌される。５は駆動歯車軸
７にスプラインやキー結合にて軸方向に摺動自在に嵌合
された従動部材で、６は従動部材５に螺合された駆動部
材である。1 to 4, a handle 1 for operation is attached with a claw metal fitting 2 for switching the rotational direction and an elastic pressing member 3 for holding the position of the claw metal fitting 2, and the handle 1 is rotated. The switching drive gear 4, which is rotated in the left or right direction via the pawl fitting 2, is externally fitted onto the drive gear shaft 7. Reference numeral 5 designates a driven member fitted to the driving gear shaft 7 by spline or key connection so as to be slidable in the axial direction, and reference numeral 6 designates a driving member screwed to the driven member 5.
この駆動歯車軸７の先端部に固設されたピニオン８には
大径の中間従動歯車９，９が噛み合い、かつこれと一体
となって回転する小径の中間駆動歯車１０に噛み合う中
空従動歯車１１は、駆動歯車軸７に回転自在に外嵌され
、該従動歯車１１のボス１３にロードシーブ１２が固着
されている。Large-diameter intermediate driven gears 9, 9 mesh with a pinion 8 fixed to the tip of the drive gear shaft 7, and a hollow driven gear 11 meshes with a small-diameter intermediate drive gear 10 that rotates integrally with the pinion 8. is rotatably fitted onto the drive gear shaft 7, and a load sheave 12 is fixed to the boss 13 of the driven gear 11.
ピニオン８と中空従動歯車１１との間には、ピニオン８
及び駆動歯車軸７を噛合状態位置に保持するための弾発
部材１．１が介在されている。また駆動歯車軸７の外端
部には手動操作輪１６が取付りられている。そして、駆
動部斗Ａ６の小径部６ａに、切換駆動歯車４の内端筒部
４ａが外嵌されると共に、第２図の状態では小（￥部６
ａと内α１１１筒部４ａとが一体的に回転し、かつ第３
図のように所定寸法だけ切換駆動歯車４を矢印Ａ方向に
引出して小角度だけ該歯車４を回転させると乗り上げて
矢印へと逆方向への移動を係止する係止機構１７が設け
られる。具体的には、小径部６ａの一部（図の左方半分
）を六角形の外形とし、かつ内端筒部４ａの内面を六角
礼状とすればよい。あるいは係止機構１７として、小径
部６ａの左半分と、内端筒部４ａ左端面との間にカムを
形成しても好ましい。Between the pinion 8 and the hollow driven gear 11, the pinion 8
and a resilient member 1.1 for holding the drive gear shaft 7 in the engaged position. Further, a manually operated wheel 16 is attached to the outer end of the drive gear shaft 7. Then, the inner end cylindrical portion 4a of the switching drive gear 4 is fitted onto the small diameter portion 6a of the drive portion A6, and in the state shown in FIG.
a and the inner α111 cylindrical portion 4a rotate integrally, and the third
As shown in the figure, when the switching drive gear 4 is pulled out by a predetermined distance in the direction of the arrow A and the gear 4 is rotated by a small angle, a locking mechanism 17 is provided which rides on the gear and locks movement in the opposite direction to the arrow. Specifically, a part of the small diameter portion 6a (the left half in the figure) may have a hexagonal outer shape, and the inner surface of the inner end cylinder portion 4a may have a hexagonal shape. Alternatively, it is preferable to form a cam as the locking mechanism 17 between the left half of the small diameter portion 6a and the left end surface of the inner end cylinder portion 4a.
しかして、切換駆動歯車４のギヤ部１８は、外周面の中
間位置に凹周溝状に形成され、係止段部１９゜１９及び
段部２０が、内外面に形成される。即ち、ギヤ部１８の
山部は少なくとも、切換駆動歯車４の内端筒部４ａ外径
よりも同等乃至以下の外径に設定され、従って、ギヤ部
１８の谷部と山部の範囲では、十分な環形状の係止段部
１９が形成される。Thus, the gear portion 18 of the switching drive gear 4 is formed in the shape of a concave circumferential groove at an intermediate position on the outer circumferential surface, and a locking step portion 19° 19 and a step portion 20 are formed on the inner and outer surfaces. That is, the peak portion of the gear portion 18 is set to have an outer diameter that is at least equal to or smaller than the outer diameter of the inner end cylindrical portion 4a of the switching drive gear 4. Therefore, in the range between the valley portion and the peak portion of the gear portion 18, A fully annular locking step 19 is formed.
そして、第２図及び第４図■又はＨの如く、爪金具２が
巻上げ状態・巻下げ状態では爪金具２の爪片２１の側面
２］ａが係止段部１９に対向する。勿論、この巻上げ状
態及び巻下げ状態では切換駆動歯車４のギヤ部１８は、
爪片２１に係合している。しかも、第４図■のように、
爪金具２が中立状態では、爪片２１．２１の側面２１ａ
は、切換駆動歯車・１の係止段部１９には対向せず、第
２図から第３図の状態まで自由に、手動操作輪１６に手
を掛りて矢印入方向に引張って、切換駆動歯車４と駆動
歯車軸７とピニオン８を引出すことができる。2 and 4, the side surface 2]a of the claw piece 21 of the claw metal fitting 2 faces the locking stepped portion 19 when the claw metal fitting 2 is in the rolled up or lowered state. Of course, in this winding state and lowering state, the gear portion 18 of the switching drive gear 4 is
It engages with the claw piece 21. Moreover, as shown in Figure 4 ■,
When the claw metal fitting 2 is in a neutral state, the side surface 21a of the claw piece 21.21
does not face the locking step 19 of the switching drive gear 1, and freely grasps the manual operation wheel 16 and pulls it in the direction of the arrow from the state shown in FIG. 2 to FIG. The gear 4, drive gear shaft 7, and pinion 8 can be pulled out.
なお、従動部月５と駆動部材６の間には、ブレーキ板２
２．２３を介して型車２４が介在され、かつ、フレーム
２５に枢着された爪片２６は該型車２４に係止して逆転
防止作用をする。Note that a brake plate 2 is provided between the driven part 5 and the drive member 6.
A mold wheel 24 is interposed via the mold wheel 2.23, and a pawl 26 pivotally attached to the frame 25 engages with the mold wheel 24 to prevent reverse rotation.
爪金具２ば図例では爪金具軸２７によりハンドル１の内
部に揺動切換可能に取付けられ、かつ爪金具軸２７と爪
金具２とはキー結合又は一体成型等で一体状に連設され
ている。２８ばごの爪金具軸２７の外端に固着された把
手であり、この把手２８を左右に揺動して、爪金具２を
第４図１． ＩＩ、ＩＩＩの各位置に切換えるものであ
る。In the illustrated example, the claw metal fitting 2 is attached to the inside of the handle 1 by a claw metal fitting shaft 27 so as to be able to swing and change, and the claw metal fitting shaft 27 and the claw metal fitting 2 are integrally connected by keying or integral molding. There is. This is a handle fixed to the outer end of the claw metal fitting shaft 27 of the No. 28 bag, and by swinging this handle 28 from side to side, the claw metal fitting 2 can be moved as shown in FIG. This is to switch between positions II and III.
上述のように、爪金具２イ」きハンドル１の揺動により
、切換駆動歯車４を介して駆動される駆動歯車軸７に、
ロードシーブ１２駆動用ビニオン８を固設し、かつ駆動
歯車軸７をその軸方向へに移動することによりピニオン
８の噛み合いを解くように遊転機構が構成されているが
、該遊転機構は図示の実施例以外に種々設計変更自由で
あり、要は駆動歯車軸７の軸方向へへの移動により、動
力伝達系路の一部が１断」状態となれば十分である。As described above, due to the swinging of the handle 1 with the claw metal fitting 2, the drive gear shaft 7 driven via the switching drive gear 4 is
The idle rotation mechanism is configured to disengage the pinion 8 by fixing the pinion 8 for driving the load sheave 12 and moving the drive gear shaft 7 in its axial direction. In addition to the illustrated embodiment, various design changes may be made; in short, it is sufficient that a portion of the power transmission line be disconnected due to movement of the drive gear shaft 7 in the axial direction.
しかして、第４図■の巻上げ、及び第４図■の巻下げの
いずれの状態に於ても、爪金具２の爪片２１の側面２１
ａは、歯車４に直接的に形成された係止段部１９に対向
して、軸方向Ａへ歯車４と軸７とを移動させることがで
きない係止状態となっており、上記遊転機構を「断」状
態とすることは全くできないで安全である。即ち、荷重
がロードシーブ１２に掛っているときには、遊転機構を
遊転の状態にする虞が全く無（なるのである。Therefore, in both the hoisting state shown in FIG. 4 (■) and the winding down state shown in FIG.
a is in a locked state in which the gear 4 and shaft 7 cannot be moved in the axial direction A, facing a locking step 19 formed directly on the gear 4, and the above-mentioned idle rotation mechanism It is completely impossible and safe to turn it into a "disconnected" state. That is, when a load is applied to the load sheave 12, there is no possibility that the idling mechanism will be in an idling state.
なお、本発明は図示の実施例に限定されず、その要旨を
変更しない範囲で設計自由なことは当然であり、例えば
、歯車４を一体型としないで分割型を一体に結合する構
造とするも自由であり、軸７に取付けた状態にて、ギヤ
部１８の内端側（ピニオン８側）に、係止段部１９が形
成されればよい。It should be noted that the present invention is not limited to the illustrated embodiment, and can be freely designed without changing the gist of the invention. For example, instead of making the gear 4 an integral type, the gear 4 may have a structure in which split types are joined together. The locking step portion 19 may be formed on the inner end side (pinion 8 side) of the gear portion 18 in a state where it is attached to the shaft 7.
さらに、爪金具２の個数の増減も自由であり、カム等を
介して間接的に把手の揺動を爪金具２に伝えるも好まし
い。Furthermore, the number of claw metal fittings 2 can be freely increased or decreased, and it is preferable to indirectly transmit the swinging motion of the handle to the claw metal fittings 2 via a cam or the like.
図示の実施例の効果によれば、第３図のように遊転機構
が遊転状態又はそれに近い状態では、爪金具２を巻トげ
、巻下げの位置にできない、即ら、爪片２１をギート部
１８に係合させんとしても内端筒部４ａ外円面に干渉し
て係合できない。故に、ビニオン８が歯車９と半噛み状
態で、ハンドルｌの揺動トルクが作用して、歯の切損事
故が発生するのを有９Ｊノに防止出来る。According to the effect of the illustrated embodiment, when the free rotation mechanism is in the free rotation state or a state close to it as shown in FIG. Even if an attempt is made to engage the gear part 18 with the inner end cylinder part 4a, it interferes with the outer circular surface of the inner end cylinder part 4a and cannot be engaged. Therefore, when the pinion 8 is in a half-engaged state with the gear 9, the rocking torque of the handle 1 is applied, and it is possible to prevent a tooth breakage accident from occurring.
本発明は上述のように、切換駆動歯車４が巻上げ・巻下
げ状態の爪金具２の爪片２１に係合したとき、該爪片２
１の側面２１ａが対向する係止段部１９を該切換駆動歯
車４に形成したから、特別に係止部刊を爪金具軸２７や
手動操作輪１６等に付設せずに済み、構造の簡略化、コ
ストダウン、コンパクト化が達成出来る。しかも、歯車
４に形成された係止段部１９は強度的に丈夫であり、爪
片２１が係止した巻」二げ・巻下げの負荷時には、確実
に遊転機構の誤操作を防止することが出来る。As described above, in the present invention, when the switching drive gear 4 engages with the claw piece 21 of the claw metal fitting 2 in the hoisting/lowering state, the claw piece 2
Since the locking stepped portion 19 facing the side surface 21a of 1 is formed on the switching drive gear 4, there is no need to specially attach a locking portion to the pawl metal shaft 27, the manual operation wheel 16, etc., and the structure is simplified. , cost reduction, and compactness can be achieved. In addition, the locking step portion 19 formed on the gear 4 is strong in terms of strength, and can reliably prevent the idling mechanism from erroneous operation when the pawl piece 21 is locked under load such as lifting or lowering. I can do it.
第１図は本発明の一実施例を示す断面正面図、第２図は
・同拡大図、第３図は遊転状態を示す同拡大図、第４図
は作用説明用側面簡略図である。
１・・・ハンドル、２・・・爪金具、４・・・切換駆動
歯車、７・・・駆動歯車軸、８・・・ピニオン、１２・
・・ロードソーブ、１日・・・ギヤ部、１９・・・係止
段部、２１・・・爪片、２１ａ・・・側面、Ａ・・・軸
方向。
特許出願人 株式会社 中元鉄工所
第１図
第２図Fig. 1 is a cross-sectional front view showing one embodiment of the present invention, Fig. 2 is an enlarged view of the same, Fig. 3 is an enlarged view of the same showing an idle state, and Fig. 4 is a simplified side view for explaining the operation. . DESCRIPTION OF SYMBOLS 1... Handle, 2... Claw metal fitting, 4... Switching drive gear, 7... Drive gear shaft, 8... Pinion, 12...
...Load sorb, 1st day... Gear part, 19... Locking step part, 21... Claw piece, 21a... Side surface, A... Axial direction. Patent applicant Nakamoto Iron Works Co., Ltd. Figure 1 Figure 2
Claims (1)
介して駆動される駆動歯車軸７に、ロードシーブ１２駆
動用ピニオン８を固設し、かつ該駆動歯車軸７をその軸
方向へに移動することにより上記ピニオン８の噛み合い
を解くように構成した遊転機構を備えた牽引巻上装置に
於て、切換駆動歯車４が巻上げ・巻下げ状態の爪金具２
の爪片２１に係合したとき、該爪片２１の側面２１ａが
対向する係止虞部１９を該切換駆動歯車４に形成したこ
とを特徴とする牽引巻上装置。(2) A pinion 8 for driving the load sheave 12 is fixedly installed on the drive gear shaft 7 driven by the handle 1 with the claw metal fitting 2 through the switching drive gear 4, and the drive gear shaft 7 is moved in the axial direction. In a traction hoisting device equipped with an idling mechanism configured to disengage the pinion 8 by moving the gear, the claw metal fitting 2 with the switching drive gear 4 in the hoisting/lowering state.
A traction hoisting device characterized in that a locking part 19 is formed on the switching drive gear 4, so that the side surface 21a of the claw piece 21 faces when engaged with the claw piece 21.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3677284A JPS60178194A (en) | 1984-02-27 | 1984-02-27 | Traction winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3677284A JPS60178194A (en) | 1984-02-27 | 1984-02-27 | Traction winding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60178194A true JPS60178194A (en) | 1985-09-12 |
Family
ID=12479053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3677284A Pending JPS60178194A (en) | 1984-02-27 | 1984-02-27 | Traction winding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60178194A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127955A1 (en) * | 2020-12-17 | 2022-06-23 | Columbus Mckinnon Industrial Products Gmbh | Lever hoist |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640785U (en) * | 1979-09-07 | 1981-04-15 | ||
| JPS58157697A (en) * | 1982-03-11 | 1983-09-19 | 株式会社キト− | Lever type small-sized hoisting combined tracking device |
-
1984
- 1984-02-27 JP JP3677284A patent/JPS60178194A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5640785U (en) * | 1979-09-07 | 1981-04-15 | ||
| JPS58157697A (en) * | 1982-03-11 | 1983-09-19 | 株式会社キト− | Lever type small-sized hoisting combined tracking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127955A1 (en) * | 2020-12-17 | 2022-06-23 | Columbus Mckinnon Industrial Products Gmbh | Lever hoist |
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