JP3612463B2 - Tension applying device for lever hoist - Google Patents

Tension applying device for lever hoist Download PDF

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Publication number
JP3612463B2
JP3612463B2 JP37374899A JP37374899A JP3612463B2 JP 3612463 B2 JP3612463 B2 JP 3612463B2 JP 37374899 A JP37374899 A JP 37374899A JP 37374899 A JP37374899 A JP 37374899A JP 3612463 B2 JP3612463 B2 JP 3612463B2
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Japan
Prior art keywords
load
drive shaft
pressure receiving
spring
tension
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Expired - Fee Related
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JP37374899A
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Japanese (ja)
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JP2001187693A (en
Inventor
俊明 酒井
隆義 中村
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Kito Corp
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Kito Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、レバーホイストに関するもので、さらに詳しくは荷の固縛時において張力を付与する手段を備えたレバーホイストにおける張力付与装置に関する。
【0002】
【従来の技術】
以下、従来のレバーホイストとレバーホイストにおける荷の固縛動作について説明する。
【0003】
図7は従来のレバーホイストの一例を示し、図7において、21は駆動軸、22はロードシーブ、23は駆動軸21に螺合し、ロードシーブ22の軸端に圧接固定された受圧部材であるブレーキ受け、24はブレーキ受けのボス部に設けられた摩擦部材、25は同じくボス部に設けられた逆転防止爪、26はブレーキ受けに隣接して設けられ、中間部に係止歯車を備えた押圧駆動部材、27は押圧駆動部材26の凸部に外挿され、押圧駆動部材26と一体となって進退する押し輪、28は押圧駆動部材26の外周部に回転可能に嵌着された操作レバー、29は回転方向切換爪、30はロードシーブに掛架されたチェーン、31はブレーキカバー、32はフックである。
【0004】
次に上記した構成を備えたレバーホイストの動作について説明する。まず、回転方向切り換え爪29を押圧駆動部材26に対し捲き上げ方向に係止し、この状態で操作レバー28を往復回動させると、受圧部材23側に移動される押圧駆動部材26は、押し輪27を介して逆転防止爪25とその両側の摩擦部材24を受圧部材23に押圧する。
【0005】
この状態になると、ロードシーブ22は押圧駆動部材26とともに捲き上げ方向に回転されるため、ロードシーブ22はチェーン30を連続的に捲き上げる。しかし上記した従来装置では、レバーホイストによって荷を固縛する時に、荷が変形したり、チェーンの伸びが少い場合には、荷を固定するための必要な張力を発生させることができず、また、作業者は荷締感を感じながら荷を固縛することはできなかった。
【0006】
【発明が解決しようとする課題】
上記したように従来のレバーホイストにおいては、レバーホイストによる荷の固縛時に、荷を固定するために必要な張力を発生させることはできず、また、作業者は荷を固定するために必要な荷縛感を認識しつつ、必要な張力で荷を固縛することはできなかった。
【0007】
【課題を解決するための手段】
本発明は上記課題を解決するもので、ロードシーブを回転する駆動軸と、駆動軸を回転する駆動部材と受圧部材から構成される駆動部を備えたレバーホイストにおいて、レバーホイスト本体またはレバーホイスト本体と連結するフック部に、荷締時において張力を発生させるばね部材を設けたことを特徴とするレバーホイストにおける張力付与装置である。
【0008】
本発明によれば、作業者がレバーホイストにより荷を固縛する場合に、ばねにより付与される張力の具合を認識しながら適正な張力で荷締を行うことができ、作業者はばねにより付与される張力によるチェーンの張り具合を認識しながら必要な固締力で荷締を行うことができる。
【0009】
【発明の実施の形態】
本発明の請求項1に記載の発明は、ロードシーブと、駆動軸と、前記駆動軸に巻装した弾性部材と、受圧部材と、レバー操作によって回転する駆動部材と、前記受圧部材と前記駆動部材間に設けられた逆転防止用の爪車とを備え、前記駆動部材の回転を前記受圧部材に伝達し、前記受圧部材の回転を前記弾性部材と前記駆動軸とを介して前記ロードシーブに伝達することを特徴とするもので、作業者がレバーホイストにより荷を固縛する場合に、弾性部材であるばねにより付与される張力の具合を認識しながら荷締を行うことができ、また荷締時に、荷の変形が生じた場合であっても、作業者はばねにより付与される張力によるチェーンの張り具合を認識しながら必要な固縛力で荷締を行うことができる作用を有する。
【0010】
請求項2に記載の発明は、前記弾性部材が、前記受圧部の回転を前記駆動軸に伝達するように設けられていることを特徴とするもので、駆動部の回転を直接駆動軸に伝達するのではなく、ばね部材を介して駆動軸を回転するようにしたので、ばねの回転力を利用して張力を付加することができ、作用者が荷を固縛する場合、ばねの張力によるチェーンの張り具合を認識しながら必要な張力でもって荷締を行うことができる作用を有する。
【0011】
請求項3に記載の発明は、弾性部材の一端を受圧部材に係着し、他端を駆動軸端部に設けた弾性部材受けに係着したことを特徴とするもので、請求項2に記載の発明と同じ作用を有する。
【0012】
請求項4に記載の発明は、前記弾性部材が、前記駆動軸の回転を前記ロードシーブに伝達するように設けられていることを特徴とするもので、駆動軸の回転を直接ロードシーブに伝達するのではなく、ばね部材を介してロードシーブを回転するようにしたので、ばねの回転力を利用して張力を付加することができ、作業者が荷を固縛する場合、ばねの張力によるチェーンの張り具合を認識しながら必要な張力でもって荷締を行うことができる作用を有する。
【0013】
請求項5に記載の発明は、弾性部材の一端を駆動軸端部に設けた弾性部材受けに係着し、他端をロードシーブに係着したことを特徴とするもので、請求項4に記載の発明と同じ作用を有する。
【0014】
請求項6に記載の発明は、前記受圧部材が第1の突起を有し、前記ロードシーブが第2の突起を有し、前記弾性部材が所定量ねじられると前記第1の突起と前記第2の突起とが係合して、前記受圧部材の回転を前記ロードシーブに直接伝達するように構成されていることを特徴とするもので、ばねにより付与される張力以上の力で固縛する場合に、駆動部から直接ロードシーブを回転することができるため、荷の特性や状態により強固に固縛することが必要な場合であっても、必要な固縛力で荷を固縛できる作用を有する。
【0016】
以下、本発明の実施の形態について、図面を参照して説明する。
【0017】
【実施の形態1】
図1〜4は本発明の一実施の形態のレバーホイストを示し、図において、1は駆動部材、2は駆動部材1と多条ねじ3を介して螺合する受圧部材であるブレーキ受け、2aはブレーキ受けに設けた突起、4はブレーキ受けに嵌装されたブレーキ板、5はブレーキ板4間に設けられた爪車、6は駆動軸、7は駆動軸6の端部に固設されたばね受け、8は図4に示すように一端がブレーキ受け2端部に係止され、他端が図3に示すようにばね受け7に係止された圧縮ねじりばね、9は駆動軸6の他端に固設されたロードシーブ、9aはブレーキ受け突起2aと係合するロードシーブ突起、10はブレーキ受け2に設けられ、突起9aの回転範囲を規制する遊間部、11は駆動部材1に外嵌される操作レバー、12は駆動部材1に操作レバー11の回動を伝達する切換爪、13は切換爪の動作切換を行う切換レバー、14はフック、15はチェーンである。
【0018】
上記構成のレバーホイストにおける動作について説明する。
まず、切換爪13を巻き上げ方向にセットし、操作レバー11を往復回動すると、切換爪12が駆動部材1を間欠的に回転し、駆動部材1と多条ねじ3を介して螺合するブレーキ受け2のブレーキ板4をロードシーブ9側に押動し、ブレーキ受け2はロードシーブ9側面に圧接する。ブレーキ受け2がロードシーブ9に圧接すると、ブレーキ受け2は回転し、ブレーキ受け2に端部が係止している圧縮ねじりばね8をばねの回転方向に逆って回転し、その反力によりばね受け7を回転する。ばね受け7が回転すると、ばね受け7と一体的に固設された駆動軸6も回転し、ロードシーブ9を回転する。
【0019】
また、ねじりばねによる張力以上の張力を加えて荷締を行う場合には、操作レバー11を更に回動すると、図2に示すように、ブレーキ受け2の突起2aがロードシーブ9の突起9aと係合し、ブレーキ受け2で直接ロードシーブ9を回転する。また、図2において10はばねの遊間部で、遊間部10のストローク分だけばねはたわむが、それ以上の回動力を受圧部材であるブレーキ受け2に与えても、ばねはたわまず、ばねの破損を防止することができる。
【0020】
このように、本実施の形態においては、操作レバー11を回動すると、駆動ギヤ1および受圧部材であるブレーキ受け2を回転し、ブレーキ受け2の回転を直接駆動軸6に伝達するのではなく、圧縮ねじりばね8とばね受け7を介して駆動軸6を回転するように構成したので、荷を固定後においても、ばねの回転力を利用して張力を付加することができるため、作業者はねじりばね8による張力を感じながら荷締を行うことができ、作業者は荷を固縛するための必要な張力を認識しながら荷締を行うことができる。
【0021】
【実施の形態2】
図5は本発明の他の実施の形態のレバーホイストを示す。実施の形態1においては、ブレーキ受け2とばね受け7間に圧縮ねじりばねを張設したのに対し、本実施の形態では、駆動軸6端部に設けたばね受け7とロードシーブ9間にねじりばね8を張設し、駆動軸6からねじりばね8を介してロードシーブ9を回転する構成のものである。
【0022】
以下、実施の形態1を構成の異なる部分について説明する。駆動部材1は駆動軸6と多条ねじ3を介して螺着しており、ブレーキ板4は駆動軸6のピニオンと螺合している。また、駆動軸6には、ロードシーブ9を挟んでブレーキ板4の反対側端部にばね受け7が固設され、ばね受け7とロードシーブ9にはねじりばね8が張設されている。
【0023】
上記構成のレバーホイストにおける動作について説明する。操作レバー11を回動すると、駆動部材1を介してブレーキ受け2をロードシーブ9に圧接する方向に押動し、ブレーキ受け2がロードシーブ9に圧接すると、駆動部材1は多条ねじ3を介して駆動軸6を回転する。駆動軸6が回転すると、駆動軸6端部に固設されたばね受け7に端部が係止されているねじりばね8を回転方向に逆って回転し、その反力によりねじりばね8の他端が係止されたロードシーブ9を回転する。
【0024】
このように、本実施の形態においては、操作レバー11を交互回動すると、駆動部材1、受圧部材であるブレーキ受け2、駆動軸6を回転し、駆動軸6の回転を直接ロードシーブ9に伝達するのではなく、ねじりばね8を介して、ねじりばねの反力を利用してロードシーブ9を回転するように構成したので、作業者は常時ねじりばね8による張力を感じながら荷締を行うことができるので、実施の形態1と同様に、作業者は荷を固縛するために必要な張力を認識しながら荷締を行うことができる。
【0025】
なお、張力を発生させる弾性部材の位置は、本実施の形態に限定されず、駆動部である受圧部材と従動部であるロードシーブ間であれば、どこででも可能で同様の効果を有する。
【0026】
【実施の形態3】
図6は本発明の他の実施の形態のレバーホイストを示し、実施の形態1,2においては、レバーホイスト本体の駆動部と駆動軸間または駆動軸とロードシーブ間にねじりばねを設けたのに対し、本実施の形態においては、本体フレームとフック間に圧縮ばねを設け、圧縮ばねにより荷締め時に必要な張力を付与するように構成したものである。
【0027】
図において、16はフレーム、17は継ぎ軸18を介してフレーム16に連結され、フック端部が装着される上金具、19はフック14端部と上金具19間でフック幹部に巻装された圧縮ばねである。
【0028】
本実施の形態においては、ロードシーブを回転し、荷締を行うと、フック14と上金具17間に巻着された圧縮ばね19により張力が加わり、上記実施の形態と同様に作業者は荷の固縛時に固縛に必要な張力を認識しながら荷締を行うことができる。
【0029】
【発明の効果】
本発明によれば、作業者がレバーホイストにより荷を固縛する場合に、ばねにより付与される張力の具合を認識しながら荷締を行うことができ、作業者は荷を固縛するために必要な張力を認識して、適正な締め具合を感じながら荷締を行うことができる。
【図面の簡単な説明】
【図1】本発明のレバーホイストを示す縦断面図である。
【図2】図1のA−A断面図である。
【図3】図1のC−C断面図である。
【図4】図1のB−B断面図である。
【図5】本発明のレバーホイストを示す縦断面図である。
【図6】本発明のレバーホイストのフック部を示す概要図である。
【図7】従来のレバーホイストを示す縦断面図である。
【符号の説明】
1 駆動部材
2 受圧部材(ブレーキ受け)
2a 突起
3 多条ねじ
4 ブレーキ板
5 爪車
6 駆動軸
7 ばね受け
8 ねじりばね
9 ロードシーブ
9a 突起
10 遊間部
11 操作レバー
12 切換爪
13 切換レバー
14 フック
15 チェーン
16 フレーム
17 上金具
18 継ぎ軸
19 圧縮ばね
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lever hoist, and more particularly to a tension applying device in a lever hoist provided with means for applying a tension when a load is secured.
[0002]
[Prior art]
Hereinafter, a conventional lever hoist and a load securing operation in the lever hoist will be described.
[0003]
FIG. 7 shows an example of a conventional lever hoist. In FIG. 7, 21 is a drive shaft, 22 is a load sheave, 23 is a pressure receiving member that is screwed to the drive shaft 21 and press-fixed to the shaft end of the load sheave 22. A brake receiver, 24 is a friction member provided at the boss portion of the brake receiver, 25 is a reverse rotation preventing claw provided at the boss portion, and 26 is provided adjacent to the brake receiver, and has a locking gear at an intermediate portion. The pressing drive member 27 is extrapolated to the convex portion of the pressing drive member 26, and the pressing wheel 28 moves forward and backward integrally with the pressing drive member 26, and 28 is rotatably fitted to the outer peripheral portion of the pressing drive member 26. An operation lever, 29 is a rotation direction switching claw, 30 is a chain hung on a load sheave, 31 is a brake cover, and 32 is a hook.
[0004]
Next, the operation of the lever hoist having the above-described configuration will be described. First, when the rotation direction switching claw 29 is locked in the lifting direction with respect to the pressing drive member 26 and the operation lever 28 is reciprocally rotated in this state, the pressing drive member 26 moved to the pressure receiving member 23 side is pressed. The reverse rotation preventing claw 25 and the friction members 24 on both sides thereof are pressed against the pressure receiving member 23 via the ring 27.
[0005]
In this state, the load sheave 22 is rotated in the lifting direction together with the pressing drive member 26, so that the load sheave 22 continuously lifts the chain 30. However, in the above-described conventional device, when the load is locked by the lever hoist, if the load is deformed or the chain is not stretched, the necessary tension for fixing the load cannot be generated. Also, the worker could not lock the load while feeling a sense of tightness.
[0006]
[Problems to be solved by the invention]
As described above, in the conventional lever hoist, the tension required to fix the load cannot be generated when the load is secured by the lever hoist, and the operator is required to fix the load. While recognizing the feeling of loading, the load could not be secured with the necessary tension.
[0007]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and in a lever hoist comprising a drive shaft that rotates a load sheave, a drive member that rotates the drive shaft, and a pressure receiving member, the lever hoist body or the lever hoist body A tension applying device for a lever hoist, characterized in that a spring member that generates tension at the time of cargo tightening is provided on a hook portion connected to the lever hoist.
[0008]
According to the present invention, when an operator locks a load with a lever hoist, the operator can perform the tightening with an appropriate tension while recognizing the tension applied by the spring, and the operator can apply the load with the spring. The load can be clamped with a necessary tightening force while recognizing the tension of the chain due to the applied tension.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes a load sheave, a drive shaft, an elastic member wound around the drive shaft, a pressure receiving member, a drive member that rotates by lever operation, the pressure receiving member, and the drive. A reverse rotation preventing claw wheel provided between the members, transmitting the rotation of the driving member to the pressure receiving member, and rotating the pressure receiving member to the load sheave via the elastic member and the driving shaft. When the operator locks the load with a lever hoist, the load can be tightened while recognizing the tension applied by the spring, which is an elastic member. Even when the load is deformed at the time of tightening, the operator can perform the tightening with the necessary securing force while recognizing the chain tension due to the tension applied by the spring.
[0010]
The invention according to claim 2 is characterized in that the elastic member is provided so as to transmit the rotation of the pressure receiving portion to the drive shaft, and the rotation of the drive portion is directly transmitted to the drive shaft. Instead of rotating the drive shaft via the spring member, tension can be applied using the rotational force of the spring. When an operator ties up the load, the tension depends on the spring. While recognizing the tension of the chain, it has the function of being able to lock the cargo with the necessary tension.
[0011]
The invention according to claim 3 is characterized in that one end of the elastic member is engaged with the pressure receiving member and the other end is engaged with the elastic member receiver provided at the end of the drive shaft. It has the same effect as the described invention.
[0012]
The invention according to claim 4 is characterized in that the elastic member is provided so as to transmit the rotation of the drive shaft to the load sheave, and the rotation of the drive shaft is directly transmitted to the load sheave. Instead of rotating the load sheave via the spring member, tension can be applied by using the rotational force of the spring. While recognizing the tension of the chain, it has the function of being able to lock the cargo with the necessary tension.
[0013]
The invention according to claim 5 is characterized in that one end of the elastic member is engaged with the elastic member receiver provided at the end of the drive shaft, and the other end is engaged with the load sheave. It has the same effect as the described invention.
[0014]
The invention according to claim 6, wherein the pressure-receiving member has a first protrusion, has the load sheave second protrusion, the said elastic member is twisted a predetermined amount and the first protrusion first It is configured to engage with the two protrusions and transmit the rotation of the pressure receiving member directly to the load sheave, and is secured with a force greater than the tension applied by the spring. In this case, the load sheave can be rotated directly from the drive unit, so that even if it is necessary to firmly lock the load sheave depending on the characteristics and condition of the load, the load can be locked with the required locking force. Have
[0016]
Embodiments of the present invention will be described below with reference to the drawings.
[0017]
Embodiment 1
1 to 4 show a lever hoist according to an embodiment of the present invention. In the figure, 1 is a drive member, 2 is a brake receiver that is a pressure receiving member that is screwed to the drive member 1 via a multi-thread screw 3, and 2a. Is a protrusion provided on the brake receiver, 4 is a brake plate fitted to the brake receiver, 5 is a claw wheel provided between the brake plates 4, 6 is a drive shaft, and 7 is fixed to an end of the drive shaft 6. 4 is a compression torsion spring having one end locked to the brake receiver 2 end as shown in FIG. 4 and the other end locked to the spring receiver 7 as shown in FIG. A load sheave fixed at the other end, 9a is a load sheave protrusion that engages with the brake receiving protrusion 2a, 10 is a loose portion that is provided on the brake receiver 2 and restricts the rotation range of the protrusion 9a, and 11 is a drive member The operation lever 12 is fitted on the drive member 1 and the operation lever 11 is Switching to transmit the dynamic claw, switching lever performing the operation switch 13 is switching claw 14 is hooked, 15 is a chain.
[0018]
The operation of the lever hoist having the above configuration will be described.
First, when the switching claw 13 is set in the winding direction and the operation lever 11 is reciprocated, the switching claw 12 intermittently rotates the driving member 1 and is engaged with the driving member 1 via the multi-thread screw 3. The brake plate 4 of the receiver 2 is pushed toward the load sheave 9 and the brake receiver 2 is pressed against the side surface of the load sheave 9. When the brake receiver 2 is pressed against the load sheave 9, the brake receiver 2 rotates, and the compression torsion spring 8 whose end is locked to the brake receiver 2 rotates in the direction opposite to the rotation direction of the spring. The spring receiver 7 is rotated. When the spring receiver 7 rotates, the drive shaft 6 fixed integrally with the spring receiver 7 also rotates, and the load sheave 9 rotates.
[0019]
In addition, when the load is tightened by applying a tension higher than the tension by the torsion spring, when the operation lever 11 is further rotated, the protrusion 2a of the brake receiver 2 and the protrusion 9a of the load sheave 9 are moved as shown in FIG. The load sheave 9 is directly rotated by the brake receiver 2. In FIG. 2, reference numeral 10 denotes a free space portion of the spring. The spring bends by the stroke of the free space portion 10, but even if a further turning force is applied to the brake receiver 2 as a pressure receiving member, the spring does not bend. Can be prevented from being damaged.
[0020]
Thus, in the present embodiment, when the operation lever 11 is rotated, the drive gear 1 and the brake receiver 2 as the pressure receiving member are rotated, and the rotation of the brake receiver 2 is not directly transmitted to the drive shaft 6. Since the drive shaft 6 is configured to rotate via the compression torsion spring 8 and the spring receiver 7, tension can be applied using the rotational force of the spring even after the load is fixed. Can perform the tightening while feeling the tension by the torsion spring 8, and the operator can perform the tightening while recognizing the necessary tension for securing the load.
[0021]
Embodiment 2
FIG. 5 shows a lever hoist according to another embodiment of the present invention. In the first embodiment, a compression torsion spring is stretched between the brake receiver 2 and the spring receiver 7, whereas in this embodiment, a torsion is provided between the spring receiver 7 provided at the end of the drive shaft 6 and the load sheave 9. In this configuration, the spring 8 is stretched and the load sheave 9 is rotated from the drive shaft 6 via the torsion spring 8.
[0022]
Hereinafter, the different parts of the configuration of the first embodiment will be described. The drive member 1 is screwed to the drive shaft 6 via the multi-thread screw 3, and the brake plate 4 is screwed to the pinion of the drive shaft 6. A spring receiver 7 is fixed to the drive shaft 6 at the opposite end of the brake plate 4 with a load sheave 9 interposed therebetween, and a torsion spring 8 is stretched between the spring receiver 7 and the load sheave 9.
[0023]
The operation of the lever hoist having the above configuration will be described. When the operation lever 11 is rotated, the brake receiver 2 is pushed in the direction in which it is pressed against the load sheave 9 via the drive member 1, and when the brake receiver 2 is in pressure contact with the load sheave 9, the drive member 1 disengages the multi-thread screw 3. And the drive shaft 6 is rotated. When the drive shaft 6 rotates, the torsion spring 8 whose end is locked to the spring receiver 7 fixed to the end of the drive shaft 6 rotates in the direction of rotation, and the reaction force causes the other of the torsion spring 8 to rotate. The load sheave 9 with the end locked is rotated.
[0024]
Thus, in this embodiment, when the operation lever 11 is alternately rotated, the drive member 1, the brake receiver 2 that is a pressure receiving member, and the drive shaft 6 are rotated, and the rotation of the drive shaft 6 is directly applied to the load sheave 9. Instead of transmitting, the load sheave 9 is rotated through the torsion spring 8 by utilizing the reaction force of the torsion spring, so that the operator always performs the load tightening while feeling the tension by the torsion spring 8. Therefore, as in the first embodiment, the operator can perform the load tightening while recognizing the tension necessary for securing the load.
[0025]
Note that the position of the elastic member that generates the tension is not limited to the present embodiment, and can be used anywhere as long as it is between the pressure receiving member that is the driving unit and the load sheave that is the driven unit.
[0026]
Embodiment 3
FIG. 6 shows a lever hoist according to another embodiment of the present invention. In the first and second embodiments, a torsion spring is provided between the drive portion of the lever hoist body and the drive shaft or between the drive shaft and the load sheave. On the other hand, in the present embodiment, a compression spring is provided between the main body frame and the hook, and the compression spring is configured to apply a necessary tension at the time of loading.
[0027]
In the figure, 16 is a frame, 17 is connected to the frame 16 via a joint shaft 18, and an upper metal fitting to which a hook end is attached, 19 is wound around a hook trunk between the hook 14 end and the upper metal 19. It is a compression spring.
[0028]
In the present embodiment, when the load sheave is rotated and the load is tightened, a tension is applied by the compression spring 19 wound between the hook 14 and the upper metal member 17, and the operator can load the load as in the above embodiment. It is possible to lock the cargo while recognizing the tension required for the lashing.
[0029]
【The invention's effect】
According to the present invention, when an operator locks a load with a lever hoist, the operator can lock the load while recognizing the tension applied by the spring, so that the operator can lock the load. Recognizing necessary tension, it is possible to perform cargo tightening while feeling an appropriate tightening degree.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a lever hoist of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a cross-sectional view taken along the line CC of FIG.
4 is a cross-sectional view taken along the line BB in FIG.
FIG. 5 is a longitudinal sectional view showing a lever hoist of the present invention.
FIG. 6 is a schematic view showing a hook portion of the lever hoist of the present invention.
FIG. 7 is a longitudinal sectional view showing a conventional lever hoist.
[Explanation of symbols]
1 Drive member 2 Pressure receiving member (brake receiver)
2a Protrusion 3 Multi-thread screw 4 Brake plate 5 Claw wheel 6 Drive shaft 7 Spring receiver 8 Torsion spring 9 Load sheave 9a Protrusion 10 Spacing part 11 Operation lever 12 Switching claw 13 Switching lever 14 Hook 15 Chain 16 Frame 17 Upper bracket 18 Joint shaft 19 Compression spring

Claims (6)

ロードシーブと、駆動軸と、前記駆動軸に巻装した弾性部材と、受圧部材と、レバー操作によって回転する駆動部材と、前記受圧部材と前記駆動部材間に設けられた逆転防止用の爪車とを備え、前記駆動部材の回転を前記受圧部材に伝達し、前記受圧部材の回転を前記弾性部材と前記駆動軸とを介して前記ロードシーブに伝達することを特徴とするレバーホイスト。 And load sheaves, the drive shaft, and an elastic member which is wound around the drive shaft, the pressure receiving member and a drive member rotated by lever operation, claw for backstop provided between said drive member and said pressure receiving member and a vehicle, transmits the rotation of the drive member to the pressure receiving member, Rebahoisu bets, characterized in that for transmitting the rotation of the pressure receiving member to the load sheave via the said drive shaft and said elastic member. 前記弾性部材が、前記受圧部の回転を前記駆動軸に伝達するように設けられていることを特徴とする請求項1記載のレバーホイス The elastic member is Rebahoisu bets according to claim 1, characterized in that the rotation of the pressure receiving portion is provided so as to be transmitted to the drive shaft. 前記弾性部材の一端を前記受圧部材に係着し、他端を前記駆動軸端部に設けた弾性部材受けに係着したことを特徴とする請求項2に記載のレバーホイスRebahoisu bets according to claim 2, characterized in that said one end of the elastic member is engaged with the pressure receiving member was engaged in receiving the elastic member is provided at the other end to the drive shaft end. 前記弾性部材が、前記駆動軸の回転を前記ロードシーブに伝達するように設けられていることを特徴とする請求項1に記載のレバーホイス The elastic member is Rebahoisu bets according to claim 1, characterized in that the rotation of the drive shaft is provided so as to be transmitted to the load sheave. 前記弾性部材の一端を前記駆動軸端部に設けた弾性部材受けに係着し、他端を前記ロードシーブに係着したことを特徴とする請求項4に記載のレバーホイスRebahoisu bets according to claim 4, characterized in that said one end of the elastic member is engaged with the receiving elastic member provided on the drive shaft end and engaged at the other end to the load sheave. 前記受圧部材が第1の突起を有し、前記ロードシーブが第2の突起を有し、前記弾性部材が所定量ねじられると前記第1の突起と前記第2の突起とが係合して、前記受圧部材の回転を前記ロードシーブに直接伝達するように構成されていることを特徴とする請求項1乃至5のいずれか1項に記載のレバーホイス The pressure receiving member has a first protrusion, the load sheave has a second protrusion, and when the elastic member is twisted by a predetermined amount, the first protrusion and the second protrusion are engaged with each other. , Rebahoisu bets according to any one of claims 1 to 5, characterized in that it is configured to transmit directly the rotation of the pressure receiving member to the load sheave.
JP37374899A 1999-12-28 1999-12-28 Tension applying device for lever hoist Expired - Fee Related JP3612463B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP37374899A JP3612463B2 (en) 1999-12-28 1999-12-28 Tension applying device for lever hoist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP37374899A JP3612463B2 (en) 1999-12-28 1999-12-28 Tension applying device for lever hoist

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JP3612463B2 true JP3612463B2 (en) 2005-01-19

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