JPH0617820Y2 - Hanging bracket - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a hanging metal fitting, and more particularly to a hanging metal fitting used for an engine conveyor or the like.

(Prior Art) When transporting an engine in a vehicle assembly line, as shown in FIG. 9, an engine suspension metal fitting provided on a trolley conveyor 30, for example, a hook 32 of a chain type suspension metal fitting 31 is attached to the engine 40. Bracket 41
Is locked and hung, and is transported to the mounting position on the vehicle body. Further, the orientation of the bracket attached to the engine 40 may vary depending on the model of the engine, and in order to avoid the trouble caused by the twist of the chain, the bracket 41 of the engine having the orientation as shown in FIG. For the engine, and the hanging hook 33 for the bracket 42 of the engine oriented as shown in FIG.
Are provided so that they can be used properly.

(Problems to be Solved by the Invention) By the way, when the direction of the engine 40 is to be corrected in a state where the engine 40 is hung on the hanging fitting 31, the worker pushes the engine 40 to face the direction. . However, although the chain-type suspension fitting 31 can rotate by the amount of twisting allowance of the chain, it does not only return to its original orientation when the hand is released after rotating, but the engine is heavy. There is a problem in that a large force is required when rotating in a desired direction and the fatigue of the operator is increased. Further, the above-mentioned conventional chain-type hanging fitting requires the two hanging hooks 32 and 33, and it is necessary to select and use any one of them, so that it is not only difficult to suspend the engine, but also complicated. There are also problems such as

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to easily rotate the hook even when a load is applied to the hook and prevent the hook from returning due to the twisting of the chain. It is an object of the present invention to provide a suspension fitting that can hold a desired rotation angle.

(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a hook is connected to a lower end of a chain suspended by a transport mechanism via a shackle, and the lower end of the chain is connected. And a shackle upper end portion, a hanging metal fitting interposing a rotation mechanism for rotatably supporting the shackle with respect to the chain, wherein the rotation mechanism is a top inner surface of the shackle at the connection portion. A first holder that is fixed to the inner surface of the lower end of the chain and has a hemispherical recess formed substantially in the center of the upper surface, and is fixed to the inner surface of the upper end of the shackle in the connecting portion that faces the first holder. A second holder having a hemispherical recess facing the recess of the first holder at approximately the center of the lower surface, and a rotatably fitted into the recess of the first holder and the recess of the second holder. And a spherical member that rotatably supports the shackle with respect to the chain.

(Operation) With the rotation mechanism interposed between the chain and the shackle, the shackle can be freely rotated with respect to the chain. This allows the hook to be lightly rotated even when a load is applied to the hook. Further, the rotation mechanism eliminates the twist between the chain and the shackle, and the shackle can be held at a desired rotation position.

Embodiment An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows a suspension fitting to which the present invention is applied. The suspension fitting 1 includes a chain 2, a shackle 3 that engages with the chain 2a at the lowermost end of the chain 2, and a hook 4 that is attached to the lower end of the shackle 3. , A rotation mechanism 5 interposed between the chain 2a at the lowermost end and the shackle 3 (Fig. 2)
And a rotation lock mechanism 6 that locks the rotation mechanism 5.

The chain 2 is composed of a plurality of, for example, three rings 2a to 2c, and the uppermost ring 2c is hung on a trolley conveyor as shown in FIG.

The rotating mechanism 5 is for rotating the shackle 3 with a slight force with respect to the chain 2 even if a load is applied to the shackle 3, and as shown in FIG.
0 and 11 and a ball 12 interposed between these holders 10 and 11, one holder 10 is fitted and fixed to the inside of the U-shaped upper portion of the shackle 3, and the other holder 11 is a chain. The holders 10 and 11 are fitted and fixed to the U-shaped inner lower part of the ring 2a of the second type, and these holders 10 and 11 have hemispherical recesses 10a and 1 at substantially the center of the facing end faces, respectively.
1a are formed to face each other. The ball 12 is rollable between the recesses 10a and 11a of the two holders 10 and 11, and the holders 10 and 11 can be rolled.
Are fitted with a slight gap.

The rotation lock mechanism 6 is for locking the rotation mechanism 5, and is fitted onto the ring 2a and the shackle 3 of the chain 2 as shown in FIGS.
Is constituted by a cylindrical lock member 6a which is slidable in the upper or lower axial direction, a flange 6b for facilitating holding is formed on the outer peripheral surface of the lock member 6a, and a hole 6c is formed on the inner peripheral surface. As shown in FIG. 5, three pairs of grooves 6d, 6d having a substantially semicircular cross section along the axial direction and at both ends on the diameter are:
6e, 6e: 6f, 6f are formed. And 2
The pair of grooves 6e, 6e and 6f, 6f are arranged adjacent to both sides of the grooves 6d, 6d and at a predetermined angle θ along the circumferential direction. Ring 2a of chain 2 has grooves 6d and 6d
Is slidably fitted in the shackle 3 in the groove 6
It is fitted in e, 6e or 6f, 6f so as to be slidable in the axial direction. The locking member 6a is fitted to the ring 2a only apart from the upper part of the shackle 3 at its upper limit position, and can be fitted to both the lower part of a and the upper part of the shackle 3 to the ring of the chain 2 at the lower limit position. It

As shown in FIGS. 7 and 8, the hook 4 includes two side brackets 15 and 15, and these side brackets 1 and 15.
Shim 1 interposed between 5 and 15 to form a predetermined gap
6, a suspension hook 17, a lock lever 18 for locking the suspension hook 17, a stopper pin 19, and the like. The two side brackets 15 and 15 are arranged so as to face each other at a predetermined interval, each upper end is integrally fixed through a shim 16, and holes 15a and 1 are respectively provided in the fixed portions.
6a and 15a are integrally drilled. As shown in FIG. 7, a notch 15c is formed at the center of the end surface of the lower end 15b of each of the side brackets 15, the notch 15c opening downward and constricting the central portion so that the opening end expands in a substantially tapered shape.

The hanging hook 17 is inserted between the two side brackets 15 with a slight gap, a hole 17a is formed in an upper portion and a position eccentric from the center, and a grip 17b that bulges in an arc shape on one side of the upper portion. A notch 17c is formed on the upper end surface of the upper end and opens at a substantially right angle to one side, and the lower end 17d is bent into a substantially L shape to serve as a locking portion. This hanging hook 17 has a hole 1
7a is rotatably supported by a pin 20 penetrating 7a and having both ends pivotally supported by holes 15d, 15d formed in the side brackets 15, 15. This pin 20 is fixed to the suspension hook 17 by a pin 21 and has holes 15d and 15d at both ends.
Is rotatably supported by.

The stopper pin 19 is a notch 15 of each side bracket 15.
It is arranged at a position immediately above c, and both ends thereof are fitted and fixed in holes 15e formed in these side brackets 15. The stopper pin 19 is for restricting the rotation of the suspension hook 17 in the closing direction. Since the hanging hook 17 is eccentrically supported by the pin 20 and is suspended by its own weight, the lower end abuts on the stopper pin 19 so that the hanging hook 17 is restricted from rotating in the clockwise direction in the figure, and the locking portion 17 is provided.
d closes the central constricted portion of the notch 15c of the side bracket 15, and cooperates with the notch 15c to form a suspending portion for suspending the bracket fixed to the engine. Further, in this state, the grip 17b at the upper end of the hanging hook 17 is bulged from one side surface of the side bracket 15 so that the grip operation can be performed.

Further, the lock lever 18 is composed of two side brackets 1.
5 and 15 and above the hanging hook 17 with a slight gap, and a hole 18a is eccentrically formed on one side of the lower portion.
A grip 18b is formed by extending one side of the lower portion obliquely downward, and a corner 18c on the side opposite to the hole 18a of the lower portion is a locking portion capable of fitting with the notch 17c of the hanging hook 17. The lock lever 18 penetrates the hole 18a and has holes 15f and 15 formed at the both ends in the side brackets 15 and 15, respectively.
The side brackets 15, 15 are pivotally supported by these side brackets 15 by a pin 22 fixed to f.

In this lock lever 18, when the lower end of the suspension hook 17 is abutted and retained by the stopper pin 19, the locking portion 18c is fitted into the notch 17c of the suspension hook 17 and the suspension hook 17 is locked. In the state where the rotation in the opening direction is prohibited and the locking portion 18c is disengaged from the notch 17c, the hanging hook 1
The rotation of 7 in the opening direction is allowed. Further, when the lock lever 18 is in a state in which the rotation of the hanging hook 17 is prohibited, the grip 18b is bulged from the other side surface of the side bracket 15 to enable the grip operation.

As shown in FIG. 1, the hook 4 penetrates through the holes 15a formed at the upper ends of the side brackets 15, and both ends thereof are rotated by a pin 23 fixed to the hole 3a (FIG. 2) at the lower end of the shackle 3. It is movably supported.

The operation will be described below.

When suspending the engine, the operator can use the hook 4 shown in FIG.
Hold the grip 18b of the lock lever 18 of the side bracket 1
When it is grasped integrally with 5 and pressed in the direction indicated by arrow C, the lock lever 18 rotates counterclockwise and the locking portion 18
The c is disengaged from the notch 17c of the suspension hook 17, and the suspension hook 17 can be rotated. Next, the worker hooks the hook 1
When the grip 17b of No. 7 is integrally gripped with the side bracket 15 and pressed in the direction indicated by the arrow D, the hanging hook 17 rotates in the opening direction (counterclockwise), and the locking portion 17d at the lower end is accordingly rotated. The notch 15c of the side bracket 15 is opened so that the bracket 41 (FIG. 1) attached to the engine can be fitted into the notch 15c.

After the upper end of the bracket 41 of this engine has been fitted, when the grip 17b of the suspension hook 17 is released to release the pressing force, the suspension hook 17 is eccentrically supported by the pin 20 and is therefore supported by its own weight in the closing direction ( The locking portion 17d at the lower end penetrates the hole 41a of the bracket 41 accordingly, and the lower end comes into contact with the stopper pin 19 and its rotation is prohibited. As a result, the bracket 41 of the engine can be securely locked to the hook 4 and can be suspended.

The lock lever 18 is rotated clockwise when the lower end surface is pushed up by the upper end surface of the suspension hook 17 when the suspension hook 17 rotates in the closing direction, and is locked when the suspension hook 17 contacts the stopper pin 19. The portion 18c is fitted into the notch 17c of the hanging hook 17 to lock the hanging hook 17. As a result, the suspension hook 17 cannot be rotated even if an impact is applied, and the bracket 41 of the engine does not come off from the hook 4. That is, the hook 4 is the side bracket 15
After the engine bracket 41 is fitted into the notch 15c, the bracket 41 can be locked easily and reliably by simply removing the hand from the hanging hook 17.

In this way, when the engine is suspended at the hook 4 and the engine is directed at a predetermined angle,
Ring 2a of chain 2 as shown in FIG. 1 or FIG.
Raise the rotation lock mechanism 6 to the upper position of the ring 2a
When the engagement between the shackle 3 and the shackle 3 is released, the shackle 3 is rotated by the rotation mechanism 5 with respect to the ring 2a in the counterclockwise direction shown by the arrow in FIG. 3 (a) or in the clockwise direction shown by the arrow in FIG. 3 (b). It becomes possible to freely rotate, and it becomes possible to orient the engine at a desired angle with a small force. Moreover, since the ring 2a and the shackle 3 are connected by the rotating mechanism 5, there is no twist unlike the conventional chain and shackle, and therefore, even if the engine is released from the hand, It never returns.

Further, in the case where the engine is suspended by the hook 4 to pass through a narrow part of the line, or in order to prevent rotation of the suspended engine, it is necessary to lock the rotating mechanism 5. . Therefore, the rotation lock mechanism 6 (FIGS. 1 and 4) is lowered downward, and the shackle 3 is inserted into the grooves 6e, 6e of the lock member 6a as shown in FIG.
Or the lock member 6a as shown in FIG.
The shackle 3 is fitted in the grooves 6f, 6f. As a result, the rotation mechanism 5 is locked and the ring 2a of the chain 2 is
The shackle 3 and the shackle 3 are integrally fixed so that free rotation thereof is restricted, and the shackle 3 is held at a rotation position restricted by the lock member 6a.

When removing the engine from the hook 4, the grip 18b of the lock lever 18 of the hook 4 is grasped and the locking portion 18 is held.
c is removed from the notch 17c of the hanging hook 17 and the hanging hook 1
7 can be rotated. Next, the grip 17b of the suspension hook 17 is grasped and rotated counterclockwise to remove the locking portion 17d at the lower end of the suspension hook 17 from the bracket 41 of the engine. This allows the engine to be easily removed from the hook 4.

In addition, in the present embodiment, the case where it is used as a hanging metal fitting for an engine conveyor in an assembly line of a vehicle is described, but the present invention is not limited to this, and it can be applied to other metal fittings such as devices and members. Of course.

As described above, according to the present invention, the upper end of the chain is connected to the lower end of the chain suspended by the transport mechanism via the shackle, and the lower end of the chain and the upper end of the shackle are connected. In a hanging metal fitting in which a rotating mechanism that rotatably supports the shackle with respect to the chain is interposed in a connecting portion, the rotating mechanism is provided in a lower end of the chain that faces an inner surface of an upper end of the shackle in the connecting portion. A first holder that is fixed to the side surface and has a hemispherical recess formed substantially in the center of the upper surface; and a first holder that is fixed to the inner surface of the upper end of the shackle in the connecting portion so as to face the first holder, and the first A second holder having a hemispherical recess facing the recess of the holder; and a rotatably fitted into the recess of the first holder and the recess of the second holder with respect to the chain. And a spherical member that rotatably supports the shackle, the shackle can be lightly rotated even when a load is applied to the hook, and further, the shackle can be twisted in connection with the chain. It is possible to maintain the state in which the object hung on the hook is rotated in the desired direction without the operator having to hold it by hand, and the burden on the operator can be reduced. it can. Further, since the hook can be freely rotated, it can be easily adjusted to the direction of the bracket of the engine. As a result, it is possible to deal with it with one hook, and it is complicated at the time of suspension. Is solved and the workability can be improved, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a suspension fitting to which the present invention is applied, FIG. 2 is an enlarged view of a main part of a rotating mechanism of FIG. 1, and FIG. 3 is rotation of a shackle of FIG. 2 with respect to a chain. Showing the figure,
4 is a front view of the rotation lock mechanism of FIG. 1, FIGS. 5 and 6 are top views showing the operation of the rotation lock mechanism of FIG. 4,
7 is a partially cutaway enlarged view of the suspension hook of FIG. 1, FIG. 8 is a sectional view taken along the line VIII-VIII of FIG. 7, FIG. 9 is a view showing a conventional engine suspension fitting, and FIG. 10 is It is a figure which shows the relationship between the engine suspension fitting shown in FIG. 9, and the bracket of an engine. 1 ... Hanging metal fittings, 2 ... Chain, 3 ... Shackle, 4 ... Hook, 5 ... Rotation mechanism, 6 ... Rotation lock mechanism, 10, 11 ...
Holder, 12 ... Ball, 15 ... Side bracket, 17
... hanging hook, 18 ... lock lever, 19 ... stopper pin, 31 ... engine hanging metal fitting, 40 ... engine, 41, 4
2 ... Engine bracket.

Claims (1)

[Scope of utility model registration request] 1. A hook is connected to a lower end of a chain suspended by a transport mechanism via a shackle, and the shackle is connected to the chain at a connecting portion between the lower end of the chain and the upper end of the shackle. In a hanging fitting having a rotation mechanism rotatably supported, the rotation mechanism is fixed to an inner surface of a lower end of the chain that faces an inner surface of an upper end of the shackle in the connecting portion, and has a hemispherical shape substantially in the center of the upper surface. And a semi-spherical recess that is fixed to the inner surface of the upper end of the shackle in the connecting portion so as to face the first holder, and that is approximately in the center of the lower surface so as to face the recess of the first holder. A second holder in which the shackle is formed, and the recess of the first holder and the recess of the second holder are rotatably fitted to rotatably support the shackle with respect to the chain. A hanging fitting comprising a spherical member and a spherical member.