JP6776026B2 - Slinging hand hook stick - Google Patents

Description

The present invention relates to a sling hook bar for safely carrying out sling work for a suspended load wire or sling.

It has been proposed that the slinging work hand hook described in Patent Document 1 below is provided with a diagonal bifurcated hook at the tip of a shaft portion, and a wire is locked between them to perform slinging work.
Further, the key rod described in Patent Document 2 is obtained by bifurcating the arcuate hook at the tip of the hand hook from the tip of the shaft to both sides. As a result, the wire can be pulled toward the front side or pushed outward from the front side.
Further, the hook rod described in Patent Document 3 has a shaft portion formed so as to be expandable and contractible, and a hook portion formed at the tip portion thereof.
The key rod described in Patent Document 4 has a U-shaped portion for pushing and a U-shaped portion for hooking provided at the tip of a shaft portion in opposite directions.

Utility Model Registration No. 3040770 Jikkenhei 2-137309 Gazette Utility Model Registration No. 3043806 Jikkensho 51-40220

The hand hook described in Cited Document 1 is provided with a bifurcated hook at the tip of the shaft, and a wire is locked there. Although this hook is effective for locking the wire, it has a drawback that the attachment / detachment work is troublesome. At the same time, there is a problem that a single hook cannot perform a plurality of various operations and lacks versatility.
The key rod of Cited Document 2 has a T-shaped tip of the shaft portion and a recess in the center thereof so that the wire can be pushed in by the recess. In this key rod, the wire may easily come off from the recess provided at the tip of the shaft portion.

The hook rod described in Patent Document 3 can be used only when the wire is pulled in.
Next, the crocodile described in Cited Document 4 has a push-in hook and a push-in U-shaped portion. Although this hook rod has both pushing and pulling functions, it has a drawback that it is not suitable for other than these two types of work.
Therefore, an object of the present invention is to provide a slinging hook bar that can easily grip a wire, prevent the once gripped wire from slipping, and safely and quickly perform various operations such as repairing a rootstock.

The present invention according to claim 1 has an L-shaped L hook portion (2) on one side of the tip of an elongated shaft portion (1), and an arc hook portion (3) is formed on the other side.
The L hook portion (2) includes a horizontal portion (2a) orthogonal to the shaft portion (1) and a vertical portion (2b) extending orthogonally from the horizontal portion (2a) toward the tip of the shaft portion (1). Have and
In the arc hook (3), the center of the arc is directed toward the hand (4) side of the shaft (1).
A wedge shape for holding a wire that is recessed toward the hand (4) side between the base of the L hook (2) with the shaft (1) and the base of the arc hook (3) with the shaft (1). recess (5) is formed,
A slinging hook bar in which the top of the arc hook (3) and the horizontal portion (2a) of the L hook (2) are arranged flush with each other.

The present invention according to claim 2 is the slinging hook rod according to claim 1 .
The shaft portion (1) is a sling hook that accommodates two or more pipe materials having different diameters coaxially and flexibly, and is provided with a screw lock (7) that can be engaged and disengaged at the connecting portion of each pipe material. It's a stick.

According to the first aspect of the present invention, the hand is located between the root of the L hook portion (2) and the shaft portion (1) and the root of the arc hook portion (3) and the shaft portion (1). Since a wedge-shaped recess (5) for holding the wire that is recessed on the (4) side is formed, the wire is securely held in the recess (5), and a hook-shaped hanger (10) such as a hoist that hangs the wire. ) Can be easily pushed inside. Further, even when the retaining metal fitting (11) is arranged in the hook-shaped opening of the hanging tool, the end portion of the wire can be safely held inside the hanging tool while rotating the metal fitting.

Further, when the top of the arc hook (3) and the horizontal portion (2a) of the L hook (2) are formed flush with each other, they straddle them, hold a wide material, and move. be able to.

In the above configuration, as described in claim 2 , the shaft portion (1) coaxially and flexibly stores two or more pipe materials having different diameters, and can be engaged with and detached from the connecting portion of each pipe material. When the screw lock (7) is provided, it becomes a highly versatile slinging hook bar whose length can be changed.

The slinging hook rod of the present invention is shown, (A) shows an exploded view thereof, (B) shows an extended state, and (C) shows a reduced state. It is explanatory drawing which shows an example which arranges the end portion of the wire 9 in a hanger 10 by the same hand hook rod, (A) shows the state which arranges the wire 9a to 9d, (B) shows the state which arranges a wire. It shows a state in which 9a to 9d are arranged. Explanatory drawing for confirming whether the tension of the wire 9 for suspending the suspended load 12 is applied substantially evenly by the same hand hook rod. Cross-sectional view of the same hand hook rod. The explanatory view which corrects the position and installs the rootstock 14 installed under the suspended load 12. In the same plan view, (A) shows a state in which the rootstock 14 is pushed in, and (B) shows a state in which the rootstock 14 is pulled back toward the front. An explanatory view showing an example of a procedure for removing a wire 9 for lifting a suspended load 12 or an extra length portion 16 of a sling caught on a protrusion 15 by the same hook rod. Explanatory drawing which shows the example which removes the hook of the remainder chain of a hoist by the L hook part 2.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows the hand hook rod of the present invention, (A) shows an exploded view thereof, (B) shows a stretched state, and (C) shows a reduced state.
As shown in FIG. 1 (A), the hand hook rod is provided with an L hook portion 2 on one side of the tip of the shaft portion 1 and an arc hook portion 3 on the other side. In this example, the L hook portion 2 and the arc hook portion 3 are arranged on the same plane. It should be noted that this may be displaced in the front-back direction of the drawing. Further, in this example, the top of the arc hook portion 3 and the horizontal portion 2a of the L hook portion 2 are formed so as to be flush with each other. The arc hook portion 3 is formed in an arc shape on the hand 4 side of the shaft portion 1, and a wire-holding wedge-shaped recess 5 is formed between the arc hook portion 3 and the L hook portion 2.
Further, in the L hook portion 2, a horizontal portion 2a is projected on one side of the shaft portion 1 by welding, and a vertical portion 2b is joined by welding perpendicular to the tip thereof, which protrudes in the direction of the tip of the shaft portion 1. It is installed. Further, one end of the arc hook 3 is fixed to the other side of the shaft 1 by welding.

In this example, the shaft portion 1 is housed in a first connecting member 1a having an inner circumference substantially aligned with the outer circumference thereof. Then, the connecting member 1a is coaxially housed in the second connecting member 1b, and a screw lock 7 that can be engaged with and detached is arranged at each of the connecting members.

(Action / Usage)
Next, a method of using the slinging hook bar thus formed will be described.
If there are variations in the length and angle of the suspended load, the crane hook and the center of gravity of the suspended load will shift during lifting, causing the suspended load to shake, the suspended load to tilt, the wire to move, and some wires to be affected. Excessive tension may be applied, the wire may break, or a suspended load may fall, causing a serious disaster. In order to prevent such accidents, the wires are arranged so that the wires do not move (without the load floating) at the start of the lifting work. At this time, when the lifting is stopped and returned to the original position to correct the wire position, if tension is applied to the wire, a finger may be pinched and the wire may be injured. Therefore, the wire is shifted and aligned with a hook rod.
In FIG. 2, the wire 9 is hung on a hook 10 of a crane (not shown) or the like during the lifting operation, and the annular end provided at the end of the wire 9 for the suspended load 12 is moved in the hanger 10 to align the wire. An example of the procedure is shown.
In this example, as shown in FIG. 2a, when the wire 9 is hooked on the hook 10 and the wires 9a, 9b, 9c, and 9d are all hooked, the wire 9 is lifted a little (the luggage does not float) and the hooking condition of the wire 9 is confirmed. This indicates a state in which the wire 9d is overlapped on the wire 9c and the order is changed. If the wire 9d is lifted in this state, the wire 9d will be displaced at the moment of lifting, the suspended load will shake, and excessive tension will be applied to some of the wires 9, making it impossible to safely lift the wire. Therefore, it is necessary to change the order of the wires. Use a wire stick to fix. In the past, since the deviation was corrected by hand, there was a risk that fingers could be pinched.
First, the annular end 17 at the tip of the wire 9d is locked by the L hook 2 in the direction of arrow A, and the hook 10 is pulled up while moving the wire 9d in the direction of arrow B.
FIG. 2b shows a state in which the hook 10 is pulled up and the wires 9a, 9b, 9c, and 9d are aligned in this order, and the wires 9 are evenly tensioned, so that the lifting work can be performed safely.

Next, FIG. 3 shows the work of confirming the tension applied to the wire 9 attached to the suspended load 12 (with the load not floating), and the wire 9 is connected to FIG. 3 by the arc hook portion 3. As shown in FIG. 4, it is held and it is confirmed whether the tension applied to the wire 9 is substantially equal. In principle, a retaining rope (all-around rope) is used to prevent rotation and runout of the suspended load 12 (not shown), but if safety is ensured with a small suspended load, a hand-held rope (alley rope) is used. It may be used instead of the safety rope).

Next, FIGS. 5 and 6 show the work of repositioning and installing the rootstock 14 installed below the suspended load 12, and during the work, a person enters under the suspended load and becomes an underlay, or hands on the suspended load. A hand hook is used so that it will not be pinched.
FIG. 6 (A) shows the work of pushing the rootstock 14 by the L hook portion 2 and the arc hook portion 3 to correct the position and install it, and FIG. 6B shows the work of pulling the rootstock 14 toward the front side to correct the position and install it. Show work. When the rootstock 14 is pushed in, its outer circumference is brought into contact with the outside of the arc hook 3 and the L hook 2. Then, with the outer circumference of the rootstock 14 being gripped by the L hook portion 2, the rootstock 14 can be reliably pushed in as shown in FIG. 6 (A). This is because not only the outsides of the arc hook 3 and the L hook 2 are flush with each other, but also they are pushed at the center of the shaft, and the L hook is at a right angle, so it is difficult to shift in the lateral direction. This is due to the fact that it has become. Further, as shown in FIG. 6B, the rootstock 14 is gripped at the corner portion between the horizontal portion 2a and the shaft portion 1 of the L hook portion 2 and pulled back to the handle portion 1c side to finely adjust the position. You can also do it.

Next, FIG. 7 is an explanatory view showing a removal method when the extra length portion 16 of the suspended load 12 or the extra length portion 16 of the sling is caught by the protrusion 15 or the like of the suspended load 12 when the suspended load 12 is lifted by the wire 9. Is. If the lifting and hanging work is performed in this state, there is a risk that not only the equipment and surrounding structures will be damaged, but also the wires will be damaged and the suspended load will fall.
In this example, a case where the protrusion 15 protrudes from the outer periphery of the suspended load 12 and the extra length portion 16 is entangled with the tip thereof is shown. In this case, the extra length portion 16 is locked to the L hook portion 2 at the tip of the shaft portion 1, and the extra length portion 16 is once slightly displaced toward the handle portion 1c side in the front or lateral direction. Next, the L hook portion 2 is turned to the tip portion of the protrusion portion 15, and the extra length portion 16 is removed from the protrusion portion 15. As necessary for the removal work, it can be pushed in by the wedge-shaped recess 5 or pulled in by the arc hook.

Next, FIG. 8 shows the work of suspending the suspended load 12 from the opening with the chain 18, the remaining chain 19 is caught by the protrusion 15 of the suspended load 12, and the chain 18 is slid to the back side with a hook rod and removed. It is explanatory drawing which shows an example.
FIG. 8A shows a case where the suspended load 12 is suspended in the opening, and the worker A operates the chain 18 to perform the hanging operation, but the remaining chain 19 on the opposite side of the worker A is suspended. The state where it is caught by the protrusion 15 on the load 12 is shown. If the lifting and hanging operations are performed in this state, there is a risk that the protrusion 15 will be damaged, the chain 18 will be damaged, and the suspended load 12 will be dropped. Therefore, the operator B uses a hook rod to shift the excess chain 18 to the back side and remove it from the protrusion 15. Note that FIG. 8B is an enlarged view when the remainder chain 19 is removed from the protrusion 15, and the remainder chain 19 is shifted to the back side by the wedge-shaped recess 5 of the hook rod operated by the operator B, and the protrusion is projected. It is a state in which the chain 19 is removed from the bolt and the connection terminal which are 15. Then, the worker A confirms that the excess chain 19 has come off from the protrusion 15, and performs the work of suspending the suspended load 12 from the opening.

(Modification example)
In the above embodiment, the L hook portion 2 forms a horizontal portion perpendicular to one end of the shaft portion and is formed by a vertical portion 2b orthogonal to the tip thereof, but each corner portion (bending) thereof is formed. The corner) may be slightly curved.
Further, in the above embodiment, the suspended load 12 is lifted by the wire 9 and the hanging operation is performed, but the suspension work is not limited to the wire, and a sling or the like may also use a hand hook rod in the same manner.

1 Shaft 1
1a Connecting material 1b Connecting material 1c Handle part 2 L Hook part 2a Horizontal part 2b Vertical part 3 Arc hook part 4 Hand 5 Wedge-shaped recess 6 Cushioning material 7 Screw lock 8 Welded part 9 Wire 10 Hooking tool 11 Retaining metal fittings 12 Hooking load 13 14 Rootstock 15 Protrusion 16 Pre-length part 17 Circular end 18 Chain 19 Remaining chain

Claims (2)

An L-shaped L-hook (2) is provided on one side of the tip of the elongated shaft (1), and an arc-shaped hook (3) is formed on the other side.
The L hook portion (2) includes a horizontal portion (2a) orthogonal to the shaft portion (1) and a vertical portion (2b) extending orthogonally from the horizontal portion (2a) toward the tip of the shaft portion (1). Have and
In the arc hook (3), the center of the arc is directed toward the hand (4) side of the shaft (1).
A wedge shape for holding a wire that is recessed toward the hand (4) side between the base of the L hook (2) with the shaft (1) and the base of the arc hook (3) with the shaft (1). recess (5) is formed,
A slinging hook bar in which the top of the arc hook (3) and the horizontal portion (2a) of the L hook (2) are arranged flush with each other . In the slinging hook rod according to claim 1 ,
The shaft portion (1) is a sling hook that accommodates two or more pipe materials having different diameters coaxially and flexibly, and is provided with a screw lock (7) that can be engaged and disengaged at the connecting portion of each pipe material. rod.

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