JPS6032058Y2 - Hook with locking safety lever - Google Patents
Hook with locking safety leverInfo
- Publication number
- JPS6032058Y2 JPS6032058Y2 JP5655879U JP5655879U JPS6032058Y2 JP S6032058 Y2 JPS6032058 Y2 JP S6032058Y2 JP 5655879 U JP5655879 U JP 5655879U JP 5655879 U JP5655879 U JP 5655879U JP S6032058 Y2 JPS6032058 Y2 JP S6032058Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- safety lever
- hook
- lock
- locking
- 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.)
- Expired
Links
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Description
【考案の詳細な説明】
この考案は、被運搬物を吊上運搬する際に玉掛ワイヤあ
るいはその他の吊り具を係止するためのロック式安全レ
バー付きフックの改良に関するものである。[Detailed Description of the Invention] This invention relates to an improvement of a hook with a locking safety lever for locking a sling wire or other hanging device when lifting and transporting an object.
次にこの考案を図示の例によって詳細に説明する。Next, this invention will be explained in detail using illustrated examples.
図面はこの考案の一実施例を示すものであって、フック
１の基端側に、フック溝２を開閉するロープ類外れ止め
用安全レバー３の後端近くの部分が枢軸１０により枢着
され、かつ中間のつる巻き部が枢軸１０に嵌挿されてい
る開放用ばね４の一方の腕はフック１に係合されると共
に、その開放用ばね４の他方の腕は安全レバー３に係合
され、さらに安全レバー３の後端部には、フック１の基
端部後面に対向する位置においてボルトからなる係止部
材５が貫通固定され、またフック１の基端側の後部には
、安全レバー開放位置規制用係止段部１１が設けられて
いる。The drawing shows an embodiment of this invention, in which a portion near the rear end of a safety lever 3 for preventing ropes from coming off, which opens and closes the hook groove 2, is pivotally attached to the proximal end side of the hook 1 by a pivot 10. , and one arm of the opening spring 4 whose intermediate helical portion is fitted into the pivot 10 is engaged with the hook 1, and the other arm of the opening spring 4 is engaged with the safety lever 3. Further, a locking member 5 made of a bolt is fixed to the rear end of the safety lever 3 at a position opposite to the rear surface of the proximal end of the hook 1, and a safety lever 5 is fixed to the rear end of the hook 1 on the proximal end side. A locking step portion 11 for regulating the lever open position is provided.
フック１における前記係止段部１１の後方部分に、ロッ
クレバ−６の中間部が枢軸１２により枢着され、そのロ
ックレバ−６の上部には、前記安全レバー３が第１図に
示す閉塞位置にあるとき前記係止部材５の下部に係合す
る上向き開口溝形の安全レバー開放防止用兼ロックレバ
−解放方向回動防止用係止部７と、安全レバー３が開放
位置にあるとき前記係合部材５の上部に対向するロック
レバ−回動用係合部８とが設けられ、中間のつる巻き部
が前記ロックレバ−６の枢軸１２に嵌挿されているロッ
ク用ばね９における一方の腕はロックレバ−６に係合さ
れ、かつそのロック用ばね９の他方の腕はフック１に係
合されている。An intermediate portion of a lock lever 6 is pivotally attached to the rear portion of the locking stepped portion 11 of the hook 1 by a pivot 12, and the safety lever 3 is placed at the upper part of the lock lever 6 in the closed position shown in FIG. When the safety lever 3 is in the open position, the locking part 7 for preventing the opening of the safety lever and preventing rotation in the releasing direction, which is an upwardly opening groove-shaped safety lever that engages with the lower part of the locking member 5 at a certain time, is engaged with the lower part of the locking member 5. A lock lever rotation engaging portion 8 is provided opposite to the upper part of the member 5, and one arm of a lock spring 9 whose intermediate helical portion is fitted into the pivot shaft 12 of the lock lever 6 is connected to the lock lever. 6, and the other arm of the locking spring 9 is engaged with the hook 1.
フック１の基端部は連結金具１３に回動自在に取付けら
れ、その連結金具１３には吊りチェーン１４の一端部が
連結され、かつ吊りチェーン１４の他端部にはシャック
ルが取付けられる。The proximal end of the hook 1 is rotatably attached to a connecting fitting 13, one end of a hanging chain 14 is connected to the connecting fitting 13, and a shackle is attached to the other end of the hanging chain 14.
第１図は安全レバー３が閉塞位置にロックされている状
態を示すものであって、安全レバー３の前端部がフック
１の先端部に嵌込まれ、かつロックレバ−６における前
記係止部７は安全レバー３の係止部材５の下部に係合し
、さらにフック１の先端部とこれに対向する安全レバー
３の先端部下面との間に間隙りが形成されている。FIG. 1 shows a state in which the safety lever 3 is locked in the closed position, with the front end of the safety lever 3 being fitted into the tip of the hook 1, and the locking portion 7 of the lock lever 6 is engaged with the lower part of the locking member 5 of the safety lever 3, and a gap is formed between the tip of the hook 1 and the lower surface of the tip of the safety lever 3 facing thereto.
第１図に示すように、安全レバー３が閉塞位置にあると
きは、ロックレバ−６における前記係止部７が安全レバ
ー３の係止部材５に嵌合しているので、ロックレバ−６
が他物の衝突による外力あるいはその他の不慮の外力に
よりロック解放方向に回動されることはなく、そのため
にロックレバ−６が不意に外れて安全レバー３が開放さ
れる恐れを排除することができる。As shown in FIG. 1, when the safety lever 3 is in the closed position, the locking portion 7 of the lock lever 6 is fitted into the locking member 5 of the safety lever 3.
The safety lever 3 will not be rotated in the lock release direction by an external force caused by a collision with another object or other unexpected external force, thereby eliminating the possibility that the lock lever 6 will come off unexpectedly and the safety lever 3 will be released. .
第１図に示す安全レバー閉塞ロック状態から、安全レバ
ーを開放する場合は、第２図に示すように安全レバー３
を時計方向に押圧回動して、係止部材５を前記係止部７
の先端の回転軌跡１６よりも外側に配置した状態で、ロ
ックレバ−６を反時計方向に押圧回動し、開放用ばね４
の弾力により安全レバー３を自動的に開放位置に回動さ
せて、係止部材５を係止段部１１に係合させたのち、ロ
ックレバ−６から押圧力を解放し、第３図に示すように
、ロック用ばね９の弾力によりロックレバ−６をロック
方向に自動的に回動させ、ロックレバ−６における前記
係合部８を安全レバー３における前記係止部材５の上部
に係合させる。To release the safety lever from the safety lever closed and locked state shown in Figure 1, move the safety lever 3 as shown in Figure 2.
Press and rotate clockwise to move the locking member 5 into the locking portion 7.
With the lock lever 6 placed outside the rotation locus 16 at the tip of the lock lever 6, press and rotate it counterclockwise to release the release spring 4.
After the safety lever 3 is automatically rotated to the open position by the elastic force of the lever 3 and the locking member 5 is engaged with the locking step 11, the pressing force is released from the lock lever 6, as shown in FIG. The locking lever 6 is automatically rotated in the locking direction by the elasticity of the locking spring 9, and the engaging portion 8 of the locking lever 6 is engaged with the upper part of the locking member 5 of the safety lever 3.
第３図に示す安全レバー開放状態から、安全レバー３を
閉じてロックする場合は、開放用ばね４の弾力に抗して
安全レバー３を閉塞位置に向かって時計方向に押圧回動
していくと、その安全レバー３の回動により、係止部材
５およびロックレバ−回動用係合部８を介してロックレ
バ−６が反時計方向に回動されていく。To close and lock the safety lever 3 from the open state shown in FIG. 3, press and rotate the safety lever 3 clockwise toward the closed position against the elasticity of the opening spring 4. As a result of the rotation of the safety lever 3, the lock lever 6 is rotated counterclockwise via the locking member 5 and the lock lever rotation engaging portion 8.
安全レバー３の先端部がフック１の先端部に接触または
近接する位置まで回動されると、係止部材５からロック
レバ−回動用係合部８が外れるので、ロック用ばね９の
弾力によりロックレバ−６がロック位置に回動され、次
いで安全レバー３から押圧力を解放すると、開放用ばね
４の力により安全レバー３が反時計方向に回動されて、
前記係止部材５が係止部７に係合し、第１図に示す安全
レバー閉塞ロック状態になる。When the tip of the safety lever 3 is rotated to a position where it contacts or approaches the tip of the hook 1, the lock lever-rotating engagement portion 8 is disengaged from the locking member 5, so that the lock lever is rotated by the elasticity of the locking spring 9. -6 is rotated to the lock position and then the pressing force is released from the safety lever 3, the safety lever 3 is rotated counterclockwise by the force of the release spring 4,
The locking member 5 engages with the locking portion 7, and the safety lever is in the closed and locked state shown in FIG.
この考案を実施する場合、前記係止部材５として抜止め
手段を有するピンまたはリベットを使用してもよい。When implementing this invention, a pin or a rivet having a retaining means may be used as the locking member 5.
この考案によれば、フック１の基端部にフック溝２を開
閉する安全レバー３の後端近くの部分が枢着され、その
安全レバー３の後端部には係止部材５が固定され、フッ
ク１の基端側後部に中間部が枢着されているロックレバ
−６の上部にハ、安全レバー３が閉塞位置にあるとき前
記係止部材５に係合する安全レバー開放防止兼ロークレ
バー解放方向回動防止用係止部７と、安全レバー３が開
放位置にあるとき前記係止部材５の上部に対向するロッ
クレバ−回動用係合部８とが設けられ、閉塞位置にある
安全レバー３の先端部下面とフック１の先端部との間に
間隙りが設けられているので、安全レバー３が閉塞位置
にあるときには、ロックレバ−６における前記係止部７
が安全レバー３の係止部材５に係合し、ロックレバ−６
が他物の衝突による外力あるいはその他の不慮の外力に
よりロック解放方向に回動されることはないので、ロッ
クレバ−６が不意に外れて安全レバー３が開放される恐
れを排除することができ、また安全レバー３を閉じてロ
ックする場合は、単に開放用ばね４の弾力に抗して安全
レバー３をその先端部がフックの先端部に接触または近
接する位置まで押圧回動したのち、安全レバー３から押
圧力を解放することにより、自動的に前述の安全な閉塞
ロック状態に切換えることができる等の効果が得られる
。According to this invention, a portion near the rear end of a safety lever 3 that opens and closes the hook groove 2 is pivotally attached to the base end of the hook 1, and a locking member 5 is fixed to the rear end of the safety lever 3. , C. A safety lever opening prevention and locking lever that engages with the locking member 5 when the safety lever 3 is in the closed position, on the upper part of the lock lever 6 whose intermediate portion is pivotally attached to the rear portion of the proximal end of the hook 1. A locking portion 7 for preventing rotation in the release direction and a locking lever-rotation engaging portion 8 facing the upper portion of the locking member 5 when the safety lever 3 is in the open position are provided, and the safety lever is in the closed position. Since a gap is provided between the lower surface of the tip of the lock lever 3 and the tip of the hook 1, when the safety lever 3 is in the closed position, the locking portion 7 of the lock lever 6
engages with the locking member 5 of the safety lever 3, and the lock lever 6
Since the lock lever 6 will not be rotated in the lock release direction by an external force due to a collision with another object or other unexpected external force, it is possible to eliminate the possibility that the lock lever 6 will come off unexpectedly and the safety lever 3 will be released. In addition, when closing and locking the safety lever 3, simply press and rotate the safety lever 3 against the elasticity of the opening spring 4 until its tip touches or approaches the tip of the hook, and then By releasing the pressing force from 3, effects such as being able to automatically switch to the safe closed lock state described above can be obtained.
図面はこの考案の一実施例を示すものであって、第１図
は安全レバーが閉塞位置にロックされている状態を示す
一部縦断側面図、第２図は安全レバーの係止部材をロッ
クレバ−の上端の回動軌跡から外した状態を示す一部縦
断側面図、第３図は安全？バーが開放されている状態を
示す一部縦断側面図である。
図において、１はフック、２はフック溝、３は安全レバ
ー、４は開放用ばね、５は係止部材、６はロックレバ−
１７は安全レバー開放防止兼ロッフレバー解放方向回動
防止用係止部、
８はロック
レバー回動用係合部、
９はロック用ばね、
１０お
よび１２は枢軸、
１４は吊りチェーンである。The drawings show an embodiment of this invention, in which Fig. 1 is a partially longitudinal side view showing a state in which the safety lever is locked in the closed position, and Fig. 2 is a partially longitudinal side view showing the locking member of the safety lever in the locked position. - Is the partially vertical side view, Figure 3, showing the top end removed from the rotation trajectory safe? FIG. 3 is a partially longitudinal side view showing a state in which the bar is open. In the figure, 1 is a hook, 2 is a hook groove, 3 is a safety lever, 4 is a release spring, 5 is a locking member, and 6 is a lock lever.
Reference numeral 17 designates a locking portion for preventing the safety lever from opening and rotation in the release direction of the lock lever; 8 an engagement portion for rotating the lock lever; 9 a locking spring; 10 and 12 a pivot; and 14 a hanging chain.
Claims (1)
の後端近くの部分が枢着され、その安全レバー３には開
放用ばね４が係合され、かつ安全レバー３の後端部には
係止部材５が固定され、フック１の基端側後部に中間部
が枢着されているロックレバ−６の上部には、安全レバ
ー３が閉塞位置にあるとき前記係止部材５に係合する安
全レバー開放防止兼ロークレバー解放方向回動防止用係
止部７と、安全レバー３が開放位置にあるとき前記係止
部材５の上部に対向するロックレバ−回動用係合部８と
が設けられ、閉塞位置にある安全レバー３の先端部下面
とフック１の先端部との間に間隙りが設けられ、ロック
レバ−６には、ロック用ばね９が係合されていることを
特徴とするロック式安全レバー付きフック。A safety lever 3 that opens and closes the hook groove 2 on the base end side of the hook 1
A portion near the rear end of the hook 1 is pivoted, a release spring 4 is engaged with the safety lever 3, and a locking member 5 is fixed to the rear end of the safety lever 3. On the upper part of the lock lever 6, whose intermediate part is pivotally mounted at the rear part, there is a lock for preventing the safety lever from opening and for preventing the lock lever from rotating in the release direction, which engages with the locking member 5 when the safety lever 3 is in the closed position. A locking portion 7 and a locking lever rotation engaging portion 8 which faces the upper portion of the locking member 5 when the safety lever 3 is in the open position are provided, and the hook connects with the lower surface of the tip of the safety lever 3 in the closed position. 1. A hook with a lock type safety lever, characterized in that a gap is provided between the hook and the tip of the lock lever 6, and a lock spring 9 is engaged with the lock lever 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5655879U JPS6032058Y2 (en) | 1979-04-28 | 1979-04-28 | Hook with locking safety lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5655879U JPS6032058Y2 (en) | 1979-04-28 | 1979-04-28 | Hook with locking safety lever |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55160385U JPS55160385U (en) | 1980-11-18 |
| JPS6032058Y2 true JPS6032058Y2 (en) | 1985-09-25 |
Family
ID=29290671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5655879U Expired JPS6032058Y2 (en) | 1979-04-28 | 1979-04-28 | Hook with locking safety lever |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032058Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001253679A (en) * | 2000-03-08 | 2001-09-18 | Hitachi Joei Tech Co Ltd | Hook with safety device |
| KR101376975B1 (en) * | 2013-03-06 | 2014-04-01 | 김중호 | Shackle for pulling of gang form |
-
1979
- 1979-04-28 JP JP5655879U patent/JPS6032058Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55160385U (en) | 1980-11-18 |
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