JP3471351B1 - Intention attachment - Google Patents

Abstract

An object of the present invention is to easily install a chain block and a balancer in a building having a ceiling where no hoist is installed. SOLUTION: Hooks 3 and 4 which respectively go around a flange 1b of a horizontal member (ceiling beam) 1 are pivotally connected by a pivot 5. The hook 3 has a hanging hole 3d extending below the pivot portion. The hooks 3 and 4 are pulled by the spring 9. The distal end portions 3a, 4a are opened by hand against the spring 9, and the distal end support portions 3a, 4a are moved onto the flange 1b from below the flange 1b.
When the open hand between the tip portions 3a and 4a is removed, the tip portions 3a and 4
a is close to each other. A tip support member (hexagonal hexagon head bolt) 2 is seated on the flange 1b. A hoist such as a chain block or a balancer is hooked into the hanging hole 3d for use. There is no need to process the horizontal member 1. It can be used anywhere on the horizontal member 1. It is simple.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intention attachment (Intensio) for supporting a lifting machine.
n Attachment hangings).

Here, the hoisting machine refers to a chain block, a balancer and the like.

[0003]

[Patent document] None

[Technical Reference] For example, a product encyclopedia (published on June 25, 1976, published by Toyo Keizai Shimbun), pages 238 to 239, describes a lifting machine. The mechanical engineering handbook (Showa 26 edition), pages 16-2 to 16-9, describes hoists and blocks.

[0004]

2. Description of the Related Art Conventionally, in a factory or the like, a movable hoist which runs on a lower end flange of an I-beam is often used.

Further, in the case where such a hoisting machine is not provided, it is also practiced to make a hole in the ceiling and attach a hanging bolt (eye bolt) to hoist the object with a chain block.

[0006]

Since it is not necessary even if the necessity is extremely low, it is necessary to plan from the beginning of factory construction if a cargo handling machine (hoisting machine) such as a hoist is provided. In buildings such as factories where no hoisting is planned, it may be excessive to install traveling rails for hoists, traveling equipment for hoists, hoists, etc. in consideration of the price of the building and the price of hoists. Investment. Therefore, it is natural that a hoist or the like should not be installed in a building that is a work place where heavy loads are not planned. However, sometimes there is a need for unplanned lifting. In that case, according to the method of making a hole in the ceiling and attaching a hanging bolt to this hole to support the chain block with the hanging bolt, it is necessary to make a hole in the ceiling every time the place is changed. This drilling is also done under the ceiling, which is not an easy task.

The present invention is an intention to support a hoisting machine capable of easily hoisting even in a building where such a cargo handling machine is not installed by arbitrarily selecting an appropriate place.
The purpose is to provide attachments.

[0008]

Means for Solving the Problems A first invention according to the present application is a web having a vertical central portion, which is detachable from a horizontal member having protrusions such as flanges on both sides of a lower portion thereof to support a lifting machine. You
Intention attachment
The ends are located above the overhanging parts of the horizontal members, and the length of the horizontal members is long.
Long shape along the direction, the longitudinal direction of the hook tip
Starting from almost the center of the
The shape is such that they intersect and hang down, and the above-mentioned protrusion from the tip of the hook.
Around the edges of the parts, crossing in the direction of approaching each other
The hooks are pivotally attached, and both hooks are closed when closed.
Engagement that locks the stopper that prevents the hook from opening through
A pair of hooks having stoppers, which are
Also has a hanging hole that extends downward and hangs the hoist
One hook and one forked piece connected at the tip
At the intersection of both hooks, the one between the two forks
The other hook that holds one hook and the pair of hooks
Axis that pivotally attaches the cross at the crossing part and the overhang of the horizontal member
It is possible to contact the top of the hook and adjust the vertical position and tilt of the hook tip.
It is arranged along the longitudinal direction of the hook tip so that
A plurality of tip support members screwed into the tip
An intention attachment characterized in that it has a spring that pulls the hook tip sides toward each other .

A second invention according to the present application is intention
Use the attachment as a horizontal member with the vertical line as the left and right symmetry lines.
On the pair of hooks when engaged and the hooks closed
The parts are line-symmetrical with the perpendicular as the symmetry line, and
The heart is off to the other hook side with no hanging hole than the perpendicular line
Set, and the center of the pivot is off the hanging hole
Offset the opposite side with the perpendicular line from the set side.
The intention attachment according to the first invention is characterized in that

The third invention according to the present application is the other foot.
In the hook, the plate material is connected at the hook tip and the middle back
The intention attachment according to the first or second aspect of the invention . Fourth issue of the present application
Ming is a web with a vertical center and flanges etc. on both sides of the bottom.
It can be attached to and detached from the horizontal material that has the overhanging part to support the lifting machine.
Intention attachment
The end is located above the overhanging part of the horizontal member and the longitudinal direction of the horizontal member
A shape that is long in the direction along the
From the center of the slot, the plate material should be
It is a shape that hangs down from the hook tip part of the overhang part.
Facing downwards from the edge, and below each of them
A pair of hooks worn, the pair of hooks closed
In each state, the hook is opened through each hook and the hanging hole member.
A pair having an abutting part that locks the opening stopper that prevents the scrap
On both sides for pivoting a hook and a pair of hooks, respectively
Suspension to suspend the hoist and a hole provided to fit the axis
A hanging hole member that has a hole and holds a pair of hooks;
Axis for pivotally attaching each hook and hanging hole member of each hook
And the upper part of the hook can be contacted on the overhanging part of the horizontal member.
Adjust the position and tilt along the length of the hook tip.
Multiple tip supports threaded into the hook tip
A member and a spring for pulling the pair of hook tips together,
Intention attachment that is characterized by having
It is an event.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a front view, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a perspective view seen from above, and FIG. 4 is a perspective view seen from below in use. FIG. 4 shows a cross member and a tip support portion in cross section for the sake of clarity.

As shown in FIG. 4, a central portion of the web 1a is perpendicular to the ceiling of the building and flanges 1 are formed on both sides of the lower portion of the web 1a.
A horizontal member 1 having b is provided. In this example, the horizontal member 1 is an H beam using H-shaped steel. Other horizontal materials I
Shape steel, T-shape steel, angle tying, channel steel tying, and the like. In particular, in the case of angle tying, the I-beam is often formed by combining with a flat plate or a strip steel.

As shown in FIG. 1, a hexagon socket head cap screw 2 is used as a tip support member 2 which can be brought into contact with the lower flange 1b of the horizontal member 1 (the upper flange 1b is not shown, the same applies hereinafter) near the web 1a. It is provided. As shown in FIG. 2, the tip end support member 2 is respectively screwed into a plurality of vertical female threads 3b and 4b provided on the tip end portions 3a and 4a of the hooks 3 and 4, respectively. As shown in FIG. 2, the tip portions 3a and 4a are attached to the horizontal member 1
It has a rectangular cross section that is long along the longitudinal direction. The tip end of the tip end supporting member 2 comes into contact with the root side of the flange 1b of the horizontal member 1 to reduce the bending force applied to the flange 1b and stabilize the load support. In addition, since the tip of the tip support member 2 makes it difficult for the tip of the tip support member 2 to wander over the flange 1b,
The plane is knurled as an obtuse cone or a plane. As described above, the tip end support members 2 are provided at the tips of the hooks 3 and 4 so that the vertical positions of the hooks 3 and 4 can be adjusted. The tip support member 2 includes a tip support portion 3a,
By adjusting 4a to the vertical position with respect to the flange 1b, the vertical position and inclination of the hooks 3 and 4 are adjusted.

The hooks 3 and 4 cross the edges of the flange 1b around the central portions in the longitudinal direction of the tip portions 3a and 4a, and cross the hooks 3 and 4 toward each other. here,
Each of the hooks 3 and 4 except the tip portions 3a and 4a is made of a steel plate. As shown in FIG. 1, the plate surface has the tip portions 3a and 4a.
It is perpendicular to the longitudinal direction of 4a and hangs from the tip portions 3a and 4a. Here, as shown in FIG. 2, the hook 4 is bifurcated, and the hook 3 is sandwiched between the hooks 4 at the intersection of the hooks 3 and 4.

There is a pivot 5 which is pivotally attached at the intersection of the pair of hooks 3, 4. The pivot 5 uses a hexagon bolt in this example. As shown in FIG. 5, the pivot 5 has hooks 3, 4
Through the through holes 3c and 4c provided at the intersection of
Reference numeral 6 is a round washer inserted into the pivot 5, and is fitted under the neck of the pivot 5 and the hook 4, between the hook 4 and the hook 3, and between the nut 7 and the hook 4 screwed into the pivot 5. A nut 7 screwed into the pivot 5 and a cotter pin 8 in the hole passing through the pivot 5.
Is inserted to prevent rotation of bolts and nuts.

As shown in FIGS. 1 and 2, the hook 4 has hook-shaped flat plates at equal intervals, and the tips are connected by a tip support portion 4a and an intermediate back portion by a web 4d in a state of being overlapped with each other. is there. These are integrated by welding.

The hook 3 further hangs down from a pivot point where the hook 3 and the hook 4 are pivotally connected, and has a hanging hole 3d below. The hanging hole 3d has a semi-circular shape at the lower side, and is facing upward so as to have a facing interval so that a hook such as a chain block can be easily engaged and disengaged. As shown in FIG. 6 of the BB sectional view of FIG. 1, the lower edge 3d1 of the hanging hole 3d is rounded.

As shown in FIG. 1, the flange 1b of the horizontal member 1
A pair of hooks 3, 4 that are stretched laterally below
There is provided a tension coil spring 9 that draws the two together.
In order to hang one end of the spring 9, a pin-shaped spring hook 11 is passed between the hooks 4 and 4 so that the holes 4 of the hooks 4 and 4 respectively.
It is driven into e, the ends are crimped, or welded to the hooks 4 and 4. Spring hook 3e which is a hole to hook the other end of spring 9
Is provided on the hook 3 (see FIG. 7). The hook of the spring hook 3e has a cut 3f on the edge of the base material of the hook 3 to reduce the wall thickness.

In the state where the intention attachment A is suspended on the horizontal member 1, through holes 3g and 4g having the same center and the same diameter are provided in a portion where the hooks 3 and 4 overlap at a position apart from the pivot 5. (See Figure 5). This hole 3
Opening stoppers 12 for hooks 3 and 4 are fitted in g and 4g. In this example, a through pin is used as the opening stopper 12. The hole 12a provided in the pin head is for locking one end of a chain (not shown), and locking the other end of the chain with this intention attachment A to attach the opening stopper 12 to the intention attachment A. Is. The length of the pin portion 12b of the opening stopper 12 is the length between the outer surfaces of the hook 4. The diameter of the pin portion 12b is reduced from the tip side to form a screw 12c. The nut 10 is screwed into the external thread 12c. Intention of the present invention
Although the attachment A has a safety of supporting against a load, the opening stopper 12 is used for safety.

Next, the operation will be described. When the intention attachment A is not used, the opening stopper 12 is pulled out from the through holes 3g and 4g. When the tension coil spring 9 has a free length, the hook tips 3a and 4a are close to or in contact with each other. Or hook tip 3
The tension coil spring 9 is slightly stretched when the a and 4a are in contact with each other.

An intention attachment A and a chain block B in the above state are prepared. Next, a place where the intention attachment A of the horizontal member 1 on the building ceiling is to be locked is selected.

Inside of the root of the hook 3
A force is applied to the h, 4h in a direction away from each other against the spring force of the coil spring 9 so as to open between the tip portions 3a, 4a of the hooks 3, 4 (specifically, the fingers are placed on the inner sides 3h, 4h. And pull the inner sides 3h and 4h away from each other), the hooks 3 and 4 rotate about the pivot 5 and the tip portions 3a and 4h.
The space between a is open. Therefore, the tip portions 3a and 4a are lifted until they pass over both edges of the flange 1b of the horizontal member 1. Next, when the force that keeps the hook root inner sides 3h, 4h away from each other is released, the spring force of the tension coil spring 9 causes the tip support parts 3a, 4h to move.
a are close to each other, and as shown in FIG. 1, the tip end supporting member 2 comes near the web 1a of the horizontal member 1. Intention
When the hand holding the attachment A is released, the tip end support member 2 is seated and supported by the flange 1b.

With the through holes 3g and 4g aligned, the opening stopper 12 is fitted into the through holes 3g and 4g and the nut 10 is tightened.

Here, the posture of the intention attachment A can be properly maintained by adjusting the screwing amount of the tip support member 2.

That is, when the tip end support member 2 on the hook 3 side is made to project more than the tip end support member 2 on the hook 4 side, the hanging hole 3d is displaced to the right in FIG.
When the tip support member 2 on the hook 4 side is projected more than the tip support member 2 on the hook 3 side, the hanging hole 3 in FIG.
d is displaced to the left. With these adjustments, the hanging hole 3
The d can be positioned directly below the web 1a, and the intention attachment A becomes stable.

The tip support member 2 is long along the horizontal member 1. Therefore, the hanging hole 3d is displaced in the direction perpendicular to the plane of the paper of FIG. 1 by changing the amount of protrusion depending on the position in the row direction of the row-shaped tip support member 2 shown in FIG. Therefore, the plate surface of the hooks 3 and 4 can be made vertical by adjusting the protrusion amount of the tip support member 2 in the row direction of the tip support member 2.

Next, as shown in FIG. 4, the hook B1 of the chain block B is hooked in the hanging hole 3d of the intention attachment A. When a heavy object is lifted by the chain block B, the weight of the chain block B and the heavy object is transmitted to the hook 3 through the hanging hole 3d. Then, it is also transmitted to the hook 4 by the pivot 5, and is supported by the flanges 1b and 1b by the tip end supporting members 2 and 2.

When changing the hoisting position, the hanging hole 3d
Then, the chain block B can be removed, and the intention attachment A can be moved along the horizontal member 1 with a slight lifting. In this case, it can be performed without removing the detent 12. When making a large movement, or when moving the intention attachment A to another horizontal member, the opening stopper 12 is once removed, and a hand is placed between the insides 3h, 4h of the hooks 3, 4 to fix the tip portions 3a, 4a. Expansion intention
Move the attachment A downward to remove the intention attachment A from the horizontal member 1. After that, the intention attachment A is moved to a required place and attached to the horizontal member 1.

Since the above construction is adopted, it is not necessary to previously install a hoist traveling device as long as there is a horizontal member on the building ceiling, and an intention attachment A is installed at an appropriately selected place to raise a product. be able to. There are many work sites like this, but it is sufficient to prepare the intention attachment A as a tool. In the embodiment, the horizontal member 1 is suitable for an H beam having a flange width of 100 mm, but it can also be used for an H beam having a smaller flange width. Because the hook tips 3a and 4a are located near the H-beam web 1a,
This is because when a vertical load is applied to the hanging hole 3d, the tip portions 3a and 4a receive a force in a direction in which they approach each other. Further, even if the opening stopper 12 is provided, the hook tips 3a and 4a are not opened. Simple structure and excellent portability.

(Second Embodiment) FIG. 8 shows a second embodiment. In the figure, portions corresponding to those of the first embodiment are assigned the same reference numerals and the description of the first embodiment is cited. . Hook 3,4
The upper part of is the same as that of the first embodiment in that it is line-symmetric with respect to the perpendicular line VL.

In the first embodiment, the pivot 5 and the hanging hole 3d are located vertically below the web 1a. On the other hand, in the second embodiment, the center C1 of the hanging hole 3d is offset by a length x1 from the vertical line VL that hangs down the center of the web 1a.
Further, the center C2 of the axis 5 is offset by a length x2 to the side opposite to the center C1 with the perpendicular line VL sandwiched therebetween.

Tip of hooks 3 and 4 Inside of the root of the hook 3
The h and 4h come into contact with the upper corner of the edge of the flange 1b.

When a chain block B (not shown) suspended by the suspension holes 3d is used to lift an object, the suspension holes 3
A downward load W acts on d through the center C1. W (x1 + x2) based on this load W around the axis 5
The counterclockwise moment of the
It receives a rotational force that rotates counterclockwise around. As a result, the hook 4 relatively receives the rotational force in the direction of decreasing the base side intersection angle θ of the hooks 3 and 4. Therefore, the inner sides 3h and 4h of the base of the tip hook portion press the edges of the flange 1b. Here, the intersection angle θ means the center C2 of the pivot 5 and the hanging hole 3d.
Is an angle formed by a line passing through the center C1 of the hook and a line passing through the center C2 of the pivot 5 and bisecting the root side of the hook 4. In this example, the opening stopper 12 is provided on the latter line, but the position of the opening stopper 12 is not limited to this.

According to this embodiment, the hooks 3 and 4 strongly hold the cross member 1 by the load.

In this embodiment, the H-shaped steel is shown by a solid line as the horizontal member 1. And the flange width is H
I-type steel having the same dimensions as the shape steel is indicated by a dotted line.

(Third Embodiment) FIG. 9 is a front view of the third embodiment, and FIG. 10 is a plan view showing a partial cross section of FIG. In the first and second embodiments, the hanging hole is provided in the hook on one side. In the present embodiment, a hanging hole member having a hanging hole is provided, and a hook is pivotally attached to the hanging hole member so as to be symmetrical.

The hanging hole member 13 has a hanging hole 13a vertically below the web 1a. The hanging hole member 13 is composed of two types of plate-shaped members. Both sides of one hanging hole member main body 13A having the hanging hole 13a are sandwiched by two hinge members 13B for providing a hinge, and the main body 13A and the hinge member 13B are sandwiched.
Both are integrated by welding. In addition, in FIG. 9, the right side of one of the hinge members 13B on the front side is cut to remove the hook 1
4, the two hinge members 13B are symmetrical with each other and have the same shape. Hanging hole member body 1
3A protrudes to the upper part from between the hinge members 13B, and a spring hook 13b which is a hole is provided in the upper part.
Similar to the first embodiment, the spring hooks 13b formed as holes are cut 13c on both sides of the edge of the base material of the hanging hole member main body 13A.
Is provided in a portion where the wall thickness of the edge of the hanging hole main body 13A is reduced.

The left and right ends of the hinge member 13B are projected from the hanging hole member main body 13A to the left and right, and the roots of the hooks 14, 14 are clamped at the protruding portions. Hole 14a at the root of hooks 14, 14 and hole 1 at hinge member 13B
A hook 14 is pivotally attached to the hinge member 13B by a pivot 15 which is inserted through 3d.

In the front view of the hook 14 seen from FIG. 9, the tip side from the hole 14a is similar to the hook 3 of the first embodiment.
A tip portion 14b is provided, and a hexagon socket head cap screw 2 having a sword tip is screwed into the female screw of the tip portion 14a as a tip support member 2. The inner side 14c on the base side of the tip hook portion is a horizontal member 1
It goes around the edge of the flange 1b. Immediately below the flange 1b, the hook 14 is provided with a spring hook 14h which is a hole. Similar to the first embodiment, the spring hook portion is made thin by making a notch 14d.

A tension coil spring 16 is stretched between the opposing spring hooks 13b and 14h. The spring 16 is arranged substantially laterally below the flange 1b.

A through hole 13e is provided in the hanging hole member main body 13A. The opening preventing member 17 can be fitted into the through hole 13e. In FIG. 9, hook 1
When the opening stop member 17 is fitted into the through hole 13e by approaching the tip end portions of the hooks 4,14, the rotation of the base of the hook 14 about the pivot axis 15 in the opening direction of the hook 14 causes the opening stop member 17 to move. Stopper part 14e that contacts
Is provided.

The root of the hook 14 is the hole 1 through the pivot 15.
An arc 14h is formed around 4a. This arc 1
The hanging hole member 13 is provided with an arc 13f along 4h. The upper portion of the hanging hole member 13 has a trapezoidal shape with a tangent line 13g that is in contact with the arc 13f. The stopper portion 14e is constituted by a tangent line 14i that contacts the arc 14h and a stopper surface 14j that intersects the tangent line 14i.

In this intention attachment A, the hooks 14 and 14 are rotated around the pivot 15 in the opening direction in a state in which the anti-opening member 17 is not attached, so that the hook tip portion 14b is moved down the edge of the flange 1b. From above. When the hand supporting the hook 14 in the opened state is released, the spring force of the tension coil spring 16 causes the hook 1 to move.
Reference numerals 4 and 14 respectively rotate about the pivot 15, and the hook tip portions 14b approach each other. When the hand supporting the intention attachment A is released, the tip support member 2 is seated on the flange 1b. Here, through hole 13e for preventing the opening
An opening stop member 17 which is a bolt nut is attached to.

When a chain block (not shown) is hung on the hanging hole 13a and the object is lifted by the chain block, the load is transmitted to the hanging hole member 13 through the chain block and from the hanging hole member 13 through the pivot 15. Is transmitted to the hook 14. Therefore, the tip support member 2 is in a state of pressing the flange 1b.

To remove the intention attachment A from the horizontal member 1, the chain block is removed from the intention attachment A. The stop member 17 is removed. The tips of the hooks 14, 14 are pushed and spread against each other against the spring force of the tension coil spring 16. Then, the intention attachment A is removed from the horizontal member 1 in a state where the distance between the hook tip portions is larger than the width of the flange 1b.

In this embodiment, the position of the pivot 15 can be brought closer to the flange 1b. Therefore, the hanging hole 13 can also be located near the lower surface of the horizontal member 1. Therefore, this intention attachment A is suitable for use in a building with a low ceiling height.

In this embodiment, in order to prevent the hook from opening, the stopper surface 14j is provided on the root side of the hook 14 and the stopper surface 14j is applied to the opening stop member 17, but it is hung at the root of the hook 14. Through hole 1 of hole member 13
It is also possible to provide a through hole that is aligned with 3e and through which the opening preventing member 17 penetrates as a through bolt.

(Fourth Embodiment) FIG. 11 shows a fourth embodiment. The drawing method of FIG. 11 is the same as that of FIG.
The right side of 3B is shown cut away.

As shown in FIG. 11, the horizontal member 1 is a web 1a.
Below the H-shaped steel having the flanges 1b above and below, a C-shaped lightweight steel 19 so-called C-chan is provided. Shaped steel 19
The lower ends of the round bar suspension members 21 are welded to both sides of the. The upper end of the hanging member 21 is fixed to the body of the second floor.

In the case of such a horizontal member 1, since the protruding portions from the web 1a to both sides become thick, the intention attachments of the above-described embodiments cannot be used.

In the fourth embodiment, as described above, the horizontal member 1
It is applied when the lower part of not only has a flange but also a beam section with a large height. 11 and 12, components similar to those of the third embodiment are designated by the reference numerals of the third embodiment, and the description relating to the third embodiment is cited.

The hook 14 is a body 1 from a position pivotally attached to a pivot 15 to a hook end 14i having a tip 14b.
The length of 4g is large. As shown in FIG. 11, the trunk attachment 14 is suspended from the horizontal member 1 with the intention attachment A suspended.
g is facing up and down.

The hanging hole member main body 13A is not spring-loaded, so that the hanging hole member main body 13A is slightly above the hinge member 13B.

In the fourth embodiment, the tension coil spring 9 is stretched between the spring hooks 14h provided on the hook 14.

In the fourth embodiment, the pivot 15 is a through bolt nut which penetrates the hook 14 and the through holes 13d and 14a of the hanging hole member 13 with a washer 23 interposed therebetween, as shown in FIG. As shown in FIG. 11, through holes 13e and 14f penetrating the hook 14 and the hanging hole member 13 are provided near the through holes 14a and 13d. Since the through holes 13e and 14f are close to the through holes 13d and 14a, it is not possible to use through bolt nuts as opening stoppers. Therefore, the opening stopper D described in Embodiment 5 described below is installed in the through holes 13e and 14f. Insert and stop.

According to the fourth embodiment, since the hook 14 is long and the lower portion of the horizontal member 1 can be largely avoided and closed, the C-shaped lightweight steel material 19 is provided at the lower portion of the horizontal member 1. It can be adapted even if the height from the upper surface of the flange 1b to the lower surface of the lightweight shaped steel material 19 is high.

Since the hook 14 has a long length from the pivot 15 to the lower end of the tip supporting member 2 serving as a hook claw, the hook 1
The tip of 4 is easy to open even if it resists the spring force of the tension coil spring 9.

Further, since the length from the hanging hole 13a to the lower end of the tip end supporting member 2 is long, the force of the hook tip to open due to the load is small and stable.

(Embodiment 5) This embodiment relates to a stopper for opening a closed hook. The opening stopper of this embodiment can be used as the opening stopper of any of the first to fourth embodiments. The opening stopper 12 described above uses through bolt nuts. If a through bolt nut is used, it is possible to prevent the bolt from being lost by connecting the bolt to the intention attachment with a chain or the like, but it is difficult to attach the nut to the intention attachment so that it will not be lost. Also, if you use the through bolt nut to prevent the hook from opening, insert the bolt into the through hole when installing.
You have to screw the nut onto the bolt. In addition, in order to remove the through bolt and nut inserted into the stop hole and attached, the nut must be unscrewed and removed.

In the fifth embodiment, the above-mentioned opening stop is developed so that there is no fear of loss of the member and the opening stop hole (through hole,
The purpose is to provide a stopper that can be easily attached to and detached from the through hole).

13 to 17 show the fifth embodiment.
13 is a plan view, FIG. 14 is a side view of FIG. 13, FIG. 15 is a plan view of FIG. 13, FIG. 16 is a plan view for showing the operation, and FIG.
7 is a side view of FIG.

Both ends of the opening prevention main body 31 of a round bar which can be fitted into the through holes 3g, 4g or 13d, 14f or 13e for preventing the opening of the intention attachment A are rounded in a hemispherical shape. One end of the main body 31 has a slit 3
It is forked with 1a. A hole into which the pin 32 is fitted is provided in a direction traversing the slit 31a. Both ends of the hole are chamfered. The pin 32 has a length close to the diameter of the body 31 but is inserted into the hole with a length that reaches the chamfer of the hole. Both ends of the pin 32 are fixed to the stopper body 31 by welding. A hole 31b passing through the center of the hemisphere is provided at the rear end of the opening prevention body 31. One end of a chain (not shown) is locked in the hole 31b. The other end of the chain is attached to the intention attachment A.

A substantially central portion of the retaining member 33 for the stopper body 31 is fitted in the slit 31a. The pin 32 described above is fitted in the hole at the center of the retaining member 33. As shown in FIG. 14, the retaining member 33 has a round shaft portion 33b on the tip side and a conical projection 33c with the round shaft portion 33b on the root side. The round shaft portion 33b has the same diameter as the diameter of the opening preventing main body 31. Retaining member 3
From the central portion of 3 to the rear end is a flat width portion 33a based on the same diameter as the round shaft portion 33b. The width across flats 33a is fitted in the slit 31a. The end portion of the flat width portion 33a is a part of a sphere as shown in FIG.

Here, the slit 31 of the opening prevention main body 31
The distance from the inner part 31c of the a to the hole 31b for locking the chain is slightly larger than the distance between the outer surfaces of the hook 4 in the first and second embodiments and the hanging hole member 13 in the third and fourth embodiments. Is.

The method of use is to insert the rotation stopper D into the through holes 3g, 4g or 13d, 14f or 13e while the intention attachment A is suspended on the horizontal member 1. When inserting, as shown in FIGS. 16 and 17, the retaining member 33 is centered on the pin 32 from the state of FIG. 14 so that the retaining member 33 and the opening retaining body 31 are positioned on a straight line.
Rotate 3. As a result, the opening prevention main body 31 and the retaining member 33 become like one round bar. Then, from the protrusion 33c at the tip of the anti-rotation device D which is aligned, the opening stop holes 3g, 4g or 13d, 14f or 13e.
To insert. And the base hole 31b of the stopper body 31
Reaches the attachment attachment A and the hole 31
Since there is a chain locked at b, the opening stopper D cannot be inserted any further. At this time, the back 31 of the slit 31a
c is a through hole 3g, 4g or 13d, 14f or 13
Going out from e. Here, the retaining member 33 is rotated 90 degrees about the pin 32. Here, the portion of the retainer 33 pivotally attached to the stopper body 31 by the pin 32 does not easily rotate due to the vibration of the intention attachment A or the like, but is provided with a resistance that does not hinder the operation. It has become. Pull the side with the hole 31b to which the chain is attached to bring the retaining member 33 of the opening stopper D closer to the side surfaces of the hooks 3, 4 or the hinge member 13B, and even if the retaining member 33 tries to rotate, the hook 3 , 4 or the side surface of the hinge member 13B.

When removing the stopper D, the stopper body 3
The rear end 1 of the hook 1 is pushed to move the retaining member 33 away from the outer surface of the hook 14 and the hanging hole member 13. Next, the retaining member 33 is rotated to align with the opening preventing body 31, and the rear end side of the opening preventing body 31 is pulled to pull through the through holes 3g, 4g or 13
It is sufficient to escape from d, 14f or 13e.

According to the opening stopper of the present embodiment, all the members are integrated, so that it is sufficient to connect them to the intention attachment A with a chain or the like. Also, the attachment / detachment to / from the intention attachment A is easy.

In the embodiment, the tension coil spring is used to draw the pair of hooks to each other, but a torsion coil spring may be attached to the pivot portion to draw the pair of hooks to each other.

According to the embodiment of the present invention , it is not necessary to previously equip the building ceiling with a device for cargo handling. The location for lifting can be arbitrarily selected as long as it is a location with a horizontal member. It can be easily and easily attached to and detached from the horizontal member. The intention attachment has few constituent members, and the structure is simple and can be provided at low cost.

According to the first invention of the present application, the hook tip portion is long in the direction along the longitudinal direction of the horizontal member,
Since the hook tip supporting member is provided so as to adjust the vertical position and the inclination of the hook tips, the vertical position and the inclination of the hook pair can be adjusted. The inclination can be adjusted both in the direction along the horizontal member and in the direction intersecting with the horizontal member. Therefore, the lifting machine can be stably supported. One of the pair of hooks extends downward from the pivot position and has a hanging hole below,
Since the other hook is a two-piece integrated body, the tension attachment does not move above the hanging hole, so that the lifting machine can be stably supported. Second invention according to the present application
According to the intent attack attached to the horizontal member,
Hook the loader to the hook and apply a load
Increases the force to grasp the horizontal member, so as the load increases.
Will increase stability. According to the third invention of the present application,
The other hook of the pair of hooks is not only the tip but also the middle back
Also, since the plate materials are connected and integrated, the rigidity is high. Origin
According to the fourth invention of the application, hooks are pivotally attached to both sides.
And a hanging hole member with a hanging hole is provided
The distance between the hole and the horizontal member can be reduced, and the distance between the hanging hole and the floor can be reduced.
Can be big. Then, the hook tip is
The shape that is long in the longitudinal direction of the material
Has a hook tip support member that can adjust the vertical position and tilt
The vertical position of the hook pair and its inclination can be adjusted.
It Adjustment of this inclination is performed in the direction along the horizontal member and in the horizontal member.
Both directions can be performed. Therefore, the lifting machine
Can be stably supported. Also, in the vertical direction of the overhang of the horizontal member
It can handle large dimensions.

[Brief description of drawings]

The drawings each show an embodiment of the present invention.

FIG. 1 is a front view of an intention attachment according to a first embodiment.

FIG. 2 is a plan view of FIG.

FIG. 3 is a perspective view of the first embodiment.

FIG. 4 is a perspective view showing a usage state of the first embodiment.

5 is a cross-sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a view on arrow C of FIG.

FIG. 8 is a front view of the intention attachment according to the second embodiment.

FIG. 9 is a front view of the intention attachment according to the third embodiment.

10 is a view including a cross section taken along line D-D of FIG. 9 with hooks removed;
FIG.

FIG. 11 is a front view of the intention attachment according to the fourth embodiment.

12 is a plan view of FIG. 11 including a part EE cross section of FIG. 11;

FIG. 13 is a front view showing an opening stopper according to a fifth embodiment.

FIG. 14 is a side view of FIG.

FIG. 15 is a plan view of FIG.

FIG. 16 is a front view showing the usage state of FIG. 13.

FIG. 17 is a side view of FIG.

[Explanation of symbols]

A ... Intention attachment B ... Chain block B1 ... Hooks C1, C2 ... Center D ... Opening stopper 1 ... Horizontal material 1a ... Web 1b ... Flange 2 ... Tip support member 3 ... Hook 3a ... Hook tip 3b ... Female screw 3c
... through hole 3d ... hanging hole 3d1 ... lower edge 3e ... spring hook 3f ... notch 3g ... through hole 3h ... inner side 4 ... hook 4a ... hook tip 4b ... female screw 4c
... through hole 4d ... web 4e ... hole 4g ... through hole 4
h ... inner side 5 ... pivot 7 ... nut 8 ... split pin 9 ... tension coil spring 10 ... nut 11 ... spring hook 12 ... opening stop 12a ... hole 12b ... pin portion 12c
... Male screw 13 ... Hanging hole member 13A ... Hanging hole member main body 13B ...
Hinge member 13a ... Hanging hole 13b ... Spring hook 13
d ... hole 13e ... through hole 14 ... hook 14a ... hole 14b ... hook tip 1
4c ... inside 14d ... notch 14e ... stopper part
14f ... through hole 14g ... trunk portion 14h ... spring hook 1
4i ... Hook end part 14j ... Stopper surface 15 ... Axis 16 ... Tensile coil spring 17 ... Opening prevention member 19 ... C type lightweight steel 21 ... Hanging member 23 ... Washer 31 ... Opening prevention body 31a ... Slit 31b ... Hole
31c ... Deep 32 ... Pin 33 ... Prevention member 33a ... Width across flats 33b ... Round shaft 33c ... Projection

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-257890 (JP, A) Actually open 4-77586 (JP, U) Actually open 5-30071 (JP, U) Actually open 63- 190277 (JP, U) Actual public 1-20380 (JP, Y2) Actual public 48-35615 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B66D 3/04 B66C 1 / 34 B66C 1/64 B66D 3/26 E04G 21/16

Claims (4)

(57) [Claims] 1. An intention attachment for supporting a hoist, which can be engaged with and disengaged from a horizontal member having a web having a vertical central portion and flanges or the like on both sides of a lower portion of the web, wherein a hook tip portion is a horizontal member. Each of them is located above both of the overhanging parts and has a shape elongated in the direction along the longitudinal direction of the horizontal member, and the plate material is perpendicular to the hook tip part from the substantially central part in the longitudinal direction of the hook tip part. It has a hanging shape, and is pivotally attached at the intersecting portion from the hook tip toward the direction of approaching each other around the edge of the protrusion and prevents the hook from opening through both hooks in the closed state. A pair of hooks having locking portions for locking the opening stop, one hook having a suspending hole extending below the pivotal position and suspending the lifting device below, and two hooks connected at the tip end. Another one , At the intersection of both hooks, the other hook that sandwiches the one hook between the two forks, the pivot that pivotally attaches the pair of hooks at the intersection, and the overhanging portion of the horizontal member And a pair of hook tip sides that are arranged along the length of the hook tip and screwed into the hook tip so that the vertical position and tilt of the hook tip can be adjusted. An intention attachment having a spring and. 2. A pair of upper hooks are line-symmetrical with the perpendicular as a symmetry line in a state in which the intention attachment is engaged with a horizontal member whose vertical line is a left-right symmetry line and the hooks are closed. The center of the hole is offset from the perpendicular to the other hook side without the hanging hole, and
The intention attachment according to claim 1, wherein a center of the pivot is offset to an opposite side of the hanging hole with the perpendicular line therebetween. 3. The intention attachment according to claim 1, wherein the other hook has a plate member connected at a hook tip and an intermediate back. 4. An intention attachment for supporting a hoist, which can be engaged with and disengaged from a horizontal member having a vertical central part and flanges on both sides of the lower part of the web. Each of them is located above both of the overhanging parts and has a shape elongated in the direction along the longitudinal direction of the horizontal member, and the plate material is perpendicular to the hook tip part from the substantially central part in the longitudinal direction of the hook tip part. A pair of hooks that have a hanging shape, and that face downward from the edge of the overhanging portion from the hook tip portion, and each of which is pivotally attached to a hanging hole member below,
A pair of hooks each having a contact portion for locking an opening stopper that prevents the hooks from opening through the hanging hole member when the pair of hooks is closed, and a pair of hooks on both sides for pivotally attaching the pair of hooks, respectively. It has a hole provided for fitting the pivot and a hanging hole for hanging the lifting machine,
A hanging hole member that holds a pair of hooks, a pivot that pivotally attaches each hook of the pair of hooks and the hanging hole member, and a vertical position and inclination of the hook tip that can contact the overhanging portion of the horizontal member. An intention attachment comprising: a plurality of tip support members that are adjustable along the longitudinal direction of the hook tip and screwed into the hook tip; and a pair of springs that pull the pair of hook tips toward each other.