JP7030318B2 - How to use hanging brackets and hanging brackets - Google Patents

Description

In the present invention, in order to use a screw rod of an excavator, a stirring rod of a stirrer, and other work rods for performing various operations, a hanging metal fitting used for work such as adding or dividing a split rod obtained by dividing the work rod. And how to use the hanging bracket.

Conventionally, a hanging metal fitting is suspended from a hanging device, the hanging metal fitting is connected to a split work rod in which the work rod is divided in the length direction, and the hanging metal fitting and the split work rod are suspended and transported to connect the split work rod. A method for performing work or division work is known (Patent Document 1).

JP 2001-173352

Since the hanging metal fitting of the above-mentioned known example is suspended in an upright posture perpendicular to the hanging device, it is easy to attach it to the split work rod in the upright posture, but it is connected to the split work rod in the sideways posture laid on the ground. There is a problem that it is not easy to do.
That is, in the shape of the hanging metal fitting of the known example, the insertion direction of the connection end of the split work rod is orthogonal to the hanging metal fitting suspended by the crane, which is a heavy work in manual work, and the hanging metal fitting itself is The posture became unstable and it was not easy to connect to the split work rod.
In the present application, the structure of the hanging metal fitting is devised to facilitate the mounting work on the split work rod, and by extension, the connection or the general split work using the split work rod as the work rod is facilitated.

The invention of claim 1 is to form a split work rod 1 having a predetermined length and provided with an upper connecting portion 10 and a lower connecting portion 11 for adding to the upper and lower ends thereof, respectively, in the length direction. The work rod R of the equipment used for civil engineering work is added, and the hanging metal fitting 15 used for the addition and division work of the division work rod 1 to be added to this work rod R is attached to the upper connection portion 10 and the lower side of the division work rod 1. A tubular metal fitting side connection portion 19 connected to any of the side connection portions 11 and a suspension mounting portion 18 for mounting an engaging member 21 suspended by a suspension device T for suspending the suspension metal fitting 15 are provided. The hanging metal fitting 15 has a posture in which the axial direction of the upper connecting portion 10 and the lower connecting portion 11 of the split work rod 1 and the axial center direction of the metal fitting side connecting portion 19 of the hanging metal fitting 15 coincide with each other . It is a hanging metal fitting provided with a posture changing holding means 30 for changing and holding the posture of the hanging metal fitting 15 suspended from the hanging device T so as to fit .
According to the second aspect of the present invention, the posture change holding means 30 is engaged with an upper connecting portion 31 that engages with the suspension device T side provided at the upper portion and a metal fitting side engaging portion 32 provided at the lower portion on the hanging metal fitting 15 side. It is a hanging metal fitting configured by providing each of the matching lower connecting portions 33.
According to the third aspect of the present invention, the posture change holding means 30 is a hanging metal fitting formed in a seamless "O" shape.
According to the fourth aspect of the present invention, the posture change holding means 30 is a hanging metal fitting formed by connecting a pair of "U" -shaped half-split members 38 with a shaft-shaped connecting shaft member 39 to form an "O" shape. It is the one that was made.
According to the fifth aspect of the present invention, the metal fitting side engaging portion 32 is a hanging metal fitting formed by forming an engaging groove 37 with which the posture change holding means 30 is engaged by a protrusion 36.
According to the sixth aspect of the present invention, the posture change holding means 30 is a hanging metal fitting composed of a connecting member 30A attached to the hanging metal fitting 15 side and a second connecting member 30B attached to the hanging device T side. ..
In the invention of claim 7, the metal fitting side engaging portion 32 on the hanging metal fitting 15 side with which the lower connecting portion 33 of the posture change holding means 30 is engaged is an abbreviation of the center of gravity G in a state where the hanging metal fitting 15 is in a sideways posture. It is a hanging bracket placed above .
The invention of claim 8 is to engage the engaging member 21 inserted into the insertion hole 20 of the hanging mounting portion 18 of the hanging metal fitting 15 with the connecting metal fitting 35 that is raised and lowered by the hanging device T, so that the hanging metal fitting 15 is in an upright state. Suspended, then the suspended metal fitting 15 was once lowered by the suspending device T to take a horizontal posture in which the axial direction of the tubular metal fitting side connecting portion 19 of the hanging metal fitting 15 is horizontal. , The upper connecting portion 31 of the posture change holding means 30 attached to the metal fitting side engaging portion 32 of the hanging metal fitting 15 is engaged with the connecting metal fitting 35 to hold the lateral posture of the hanging metal fitting 15, and is suspended in this state. The metal fitting side connection portion 19 of the hanging metal fitting 15 is moved closer to and connected to the lower connecting portion 11 of the split work rod 1 in the sideways posture by the device T, and then the posture holding state of the hanging metal fitting 15 by the posture change holding means 30. The hanging metal fitting 15 and the split work rod 1 are lifted and transported by the suspension device T, and the lower connection portion 11 of the transported split work rod 1 is connected to the upper connection portion 10 of the split work rod 1 separately prepared. Next, the hanging metal fitting 15 is removed from the upper connecting portion 10 of the split work rod 1, and the removed hanging metal fitting 15 is changed and held in the sideways posture by the posture change holding means 30 as described above, and the next connection work is performed. How to use a hanging bracket to connect to another sideways split work rod 1 for use and repeat this to connect a plurality of split work rods 1 to form a work rod R of a desired length used for civil engineering work. It was done.

In the first aspect of the present invention, the posture is held by the posture change holding means 30 and suspended by the suspension device T so as to coincide with the axial direction of the split work rod 1 to which the suspension fitting 15 is to be joined. Since the weight of the metal fitting 15 can be moved while being supported, and the hanging metal fitting 15 and the split work rod 1 can be aligned and connected or divided in this supported state, the work can be facilitated.
In the invention of claim 2, the posture change holding means 30 is engaged with an upper connecting portion 31 that engages with the suspension device T side provided at the upper part and a metal fitting side engaging portion 32 provided at the lower part on the hanging metal fitting 15 side. Since the lower connecting portions 33 to be matched are provided respectively, the hanging metal fitting 15 can be easily held in the sideways posture by the posture change holding means 30, and the configuration of the posture change holding means 30 can be simplified.
In the invention of claim 3, since the posture change holding means 30 is formed in a seamless "O" shape, the configuration of the posture change holding means 30 can be simplified.
In the invention of claim 4, since the posture change holding means 30 is formed by connecting a pair of "U" -shaped half-split members 38 with a shaft-shaped connecting shaft member 39 to form an "O" shape. Regardless of the shape of the metal fitting side engaging portion 32 of the hanging metal fitting 15, it can be engaged with the metal fitting side engaging portion 32, and the versatility can be improved.
In the invention of claim 5, since the metal fitting side engaging portion 32 forms an engaging groove 37 with which the posture change holding means 30 is engaged by the protrusion 36, the posture change holding means 30 can be engaged and disengaged. You can do it easily.
In the invention of claim 6, since the posture change holding means 30 is composed of the connecting member 30A attached to the hanging metal fitting 15 side and the second connecting member 30B attached to the hanging device T side, the posture change holding means 30 is suspended from the connecting metal fitting 35. The posture can be easily changed from the state in which the engaging member 21 of the metal fitting 15 is engaged and suspended to the sideways posture, and the transition to the ascending work in which the split work rod 1 is raised after being attached to the split work rod 1 is also easy. can.
In the invention of claim 7, the metal fitting side engaging portion 32 on the hanging metal fitting 15 side with which the lower connecting portion 33 of the posture change holding means 30 engages is an abbreviation for the center of gravity G in a state where the hanging metal fitting 15 is in a sideways posture. Since it is arranged above, the hanging metal fitting 15 can be easily held in the sideways posture by the posture change holding means 30, and the configuration of the posture change holding means 30 can be simplified.
In the invention of claim 8, the posture is held and hung by the posture change holding means 30 so as to coincide with the axial direction of the split work rod 1 to which the hanging metal fitting 15 is to be joined, and the hanging metal fitting 15 is hung by T. The work can be facilitated because the hanging metal fitting 15 and the split work rod 1 can be aligned, connected, or split while being moved while supporting the weight of the rod 1.

Side view of the excavator. A side view of the split work rod suspended from the suspension device by a hanging bracket. Side view of the split work rod suspended by the hanging bracket. Sectional drawing of the hanging metal fitting which omitted the engaging member. Front view and side view of the engaging member of the hanging bracket. The side view of the hanging metal fitting which omitted the engaging member. Same front view. The same sectional view. Cross-sectional view of the hanging bracket. A side view of an example of mounting a hanging bracket on a split work rod in a sideways posture. (A) A side view in which the hanging metal fitting is placed in a sideways posture by the posture change holding means. (B) Front view and side view of the connecting member. (C) Front view and side view of another embodiment of the connecting member. (D) Front view and side view of another embodiment of the connecting member. The side view which changed the posture of the hanging metal fitting to the sideways posture by the posture change holding means. FIG. 11 (B) is a side view of another embodiment of the metal fitting side engaging portion when the hanging metal fitting is placed in a sideways posture by the posture change holding means. 11 (B) is a side view and a front view of another embodiment of the metal fitting side engaging portion when the hanging metal fitting is placed in a sideways posture by the posture change holding means. FIG. 11 is a side view of another embodiment when the hanging metal fitting is placed in a sideways posture by the posture change holding means of FIG. 11C. A side view of another embodiment of the metal fitting side engaging portion. Side view and front view of another embodiment of the metal fitting side engaging portion. FIG. 11 (C) is a side view before the hanging metal fitting is placed in the sideways posture by the posture change holding means. 11 (D) is a side view and a front view in which the hanging metal fitting is placed in a sideways posture by the posture change holding means. A side view and a front view of an embodiment in which various connecting members are combined to form a posture change holding means. Side view and front view of other embodiments of the hanging bracket. Side view and front view of another embodiment of the metal fitting side connection portion of the hanging metal fitting. Side view and front view of another embodiment of the metal fitting side connection portion of the hanging metal fitting. Side view of another embodiment of the hanging bracket.

Explaining one embodiment of the present invention by drawing, 1 is a split work rod constituting a work rod R of an apparatus used for civil engineering work (excavation work, soil improvement work), etc., and is a so-called screw rod of an excavation device. It is used in this example as a general term for agitating rods of a stirrer.
FIG. 1 shows an example of an excavator 2 using a split work rod 1. Reference numeral 3 is a base machine, 4 is a leader provided in the base machine 3, and 5 is a rotary drive unit mounted on the leader 4 so as to be vertically movable. The upper portion of the split work rod 1 is attached to the rotary shaft body 6 of the drive unit 5.
In the description of the present embodiment of the present invention, in order to facilitate understanding, the directions such as up, down, left, and right are used, but the configuration of the present invention is limitedly interpreted by this. There is no.

The work rod R is configured by adding a plurality of split work rods 1 formed having a predetermined length, and an upper connection portion 10 and a lower connection portion 11 for adding to the upper and lower ends of each split work rod 1. And are provided respectively, and a plurality of split work rods 1 are added in the length direction and used as the work rod R.
The hanging metal fitting 15 used for adding, separating, etc. of the split work rod 1 for making the work rod R is the gist of the present invention, and the hanging metal fitting 15 is a various hanging devices for each split work rod 1. It is configured by providing a hanging mounting portion 18 used when suspending with T and a metal fitting side connecting portion 19 connected to the upper connecting portion 10 of the split work rod 1.
Here, the configuration of the suspension device T is not a requirement of the present application, the configuration is arbitrary, and the suspension metal fitting 15 may be suspended and raised and lowered. In this embodiment, as an example, a wire of a crane (not shown). Although the suspension hook 17 of 16 is used, for example, although not shown, a suspension hook may be provided on the lower surface of the excavator of the hydraulic excavator, and the hydraulic excavator may be used as the suspension device T.

The hanging mounting portion 18 of the hanging metal fitting 15 is formed of a plate member having a predetermined plate thickness, and the hanging mounting portion 18 is provided with an insertion hole 20 penetrating in the left-right direction. An engaging member 21 that engages with the suspension device T (suspension hook 17) provided on the wire 16 is attached to the insertion hole 20.
The configuration of the engaging member 21 is arbitrary, but as an example, the lower portions of the pair of engaging portions 22 having an inverted “U” shape are connected by the shaft member 23 (FIG. 5), and the pair is configured. The engaging portion 22 is positioned on both the left and right sides of the insertion hole 20 of the hanging mounting portion 18, and the engaging portion 22 in this state is connected by the shaft member 23 inserted into the insertion hole 20, and the engaging member 21 is connected to the hanging bracket. Attach to 15.
Therefore, the engaging member 21 engages the shaft member 23 with the hanging device T (hanging hook 17) to lift the hanging metal fitting 15.
The metal fitting side connection portion 19 of the hanging metal fitting 15 is provided with a fitting hole 25 for connecting the upper connection portion 10 of the split work rod 1, and the metal fitting side connection portion 19 is engaged with the engagement groove 26 of the upper connection portion 10. A pin insertion hole 28 for inserting the engaging pin 27 to be inserted is provided (FIG. 4).

Then, in order to lift the split work rod 1 by the suspension device T (hanging hook 17), the metal fitting side connection portion 19 of the hanging metal fitting 15 is connected to the upper connection portion 10 of the split work rod 1 and the hanging metal fitting 15 is engaged. The joining member 21 is hooked on the hanging device T (hanging hook 17) to be lifted, but the hanging metal fitting 15 is configured to have a predetermined weight, and the hanging metal fitting 15 is manually lifted to be a split work rod. Since it is not easy to connect to 1, the hanging metal fitting 15 is suspended from the hanging device T (hanging hook 17) and connected to the split work rod 1.
In this case, according to the posture of the split work rod 1 before connecting the hanging metal fitting 15, the hanging posture of the hanging metal fitting 15 in the upright state is changed to the sideways posture of lying down by the posture change holding means 30 and held. In this state, the axial center direction (connection direction) of the metal fitting side connection portion 19 of the hanging metal fitting 15 is opposed to the upper connection portion 10 of the split work rod 1 and connected.

In this case, the posture change holding means 30 may be configured to connect the hanging device T (hanging hook 17) side and the hanging metal fitting 15 side, and the configuration is arbitrary. To give an example, the posture change holding means 30 Is composed of a connecting member 30A having an upper connecting portion 31 mounted (engaged) on the hanging device T side and a lower connecting portion 33 mounted (engaged) on the hanging metal fitting 15 side.
Therefore, the upper connecting portion 31 of the connecting member 30A of the posture change holding means 30 is engaged with the suspension device T (suspension hook 17), and the lower connecting portion 33 of the connecting member 30A of the posture change holding means 30 is attached to the hanging metal fitting 15. When engaged with the metal fitting side engaging portion 32 provided in the above, the hanging metal fitting 15 is suspended from the hanging device T (hanging hook 17) in a sideways posture, and the hanging metal fitting 15 is attached to the split work rod 1 in a sideways posture. The metal fitting side connection portion 19 can be easily connected.

The connecting member 30A of the posture change holding means 30 may be configured to be suspended on the suspension device T (suspension hook 17) side, and the configuration is arbitrary, and the connecting member 30A in FIG. 11B is referred to as a so-called master link. It is configured in a seamless "O" shape, the upper arc portion of the connecting member 30A is the upper connecting portion 31, and the lower arc portion of the connecting member 30A is the lower connecting portion 33.
The connecting member 30A of the posture change holding means 30 of FIG. 11C is formed by connecting a pair of "U" -shaped half-split members 38 with a shaft-shaped connecting shaft member 39 to form an "O" shape.
The connecting member 30A of the posture change holding means 30 of FIG. 11D is configured by connecting the lower portions of the pair of engaging legs 40 having an inverted “U” shape with the shaft member 41, and the pair of engaging legs 40 are connected by the suspension device T ( It is configured to be hung on a hanging hook 17).

In this way, the upper connecting portion 31 of the connecting member 30A of the posture change holding means 30 is hung on the suspension device T (hanging hook 17) side, and the lower connecting portion 33 of the connecting member 30A is engaged on the metal fitting side of the hanging metal fitting 15. When engaged with the joint portion 32 and raised by the hanging device T (hanging hook 17) in this state, the hanging metal fitting 15 is suspended sideways to the hanging device T (hanging hook 17) (FIGS. 11 and 11). 12 mag).
At this time, the metal fitting side engaging portion 32 is provided at a position substantially above the center of gravity G of the hanging metal fitting 15 in the lateral posture.
That is, since the hanging metal fitting 15 suspends the hanging metal fitting 15 sideways to the hanging device T (hanging hook 17) only by the posture change holding means 30, the metal fitting side engaging portion 32 is an abbreviation of the center of gravity G of the horizontal hanging metal fitting 15. Even when the connecting member 30A is suspended from the connecting metal fitting 35 (second connecting member 30B) suspended from the suspending device T (suspension hook 17) as shown in FIG. 12, which is provided at an upper position, the connecting member 30A is connected. The lower connecting portion 33 of the member 30A engages with the fitting side engaging portion 32 located substantially above the center of gravity G of the hanging fitting 15, and is suspended sideways to the hanging device T (hanging hook 17). Become.

The configuration of the metal fitting side engaging portion 32 on the hanging metal fitting 15 side for mounting (engaging) the lower connecting portion 33 of the connecting member 30A of the posture change holding means 30 is also arbitrary, and FIGS. 4 and 11 show. In the embodiment, the metal fitting side engaging portion 32 is configured by forming an engaging groove 37 by the protrusion 36, and the metal fitting side engaging portion 32 in FIG. 11 is engaged downward with reference to the hanging metal fitting 15 in the standing posture. Although the groove 37 is formed, the metal fitting side engaging portion 32 in FIG. 13 forms an engaging groove 37 upward with reference to the hanging metal fitting 15 in the upright posture, and the metal fitting side engaging portion 32 in FIG. 14 is formed. Is formed by opening the engaging groove 37 in either the left or right direction in the left or right direction with respect to the hanging metal fitting 15 in the standing posture.

Further, the configuration in which the connecting member 30A of the posture change holding means 30 is suspended on the suspension device T (suspension hook 17) side, or the suspension work and the posture change work order are also arbitrary. A connecting member 30A formed by connecting a U-shaped half-split member 38 with a shaft-shaped connecting shaft member 39, and a connecting metal fitting 35 (second connecting) suspended in advance from a hanging device T (hanging hook 17). The posture change holding means 30 is configured by the member 30B).
Therefore, the connecting fitting 35 (second connecting member 30B) is suspended from the hanging device T (hanging hook 17) in advance, and the connecting member 30A suspended from the connecting fitting 35 (second connecting member 30B) is attached to the hanging bracket 15. The hanging metal fitting 15 is held in a lateral hanging posture by engaging with the metal fitting side engaging portion 32 of the above.
In this case, the hanging metal fitting 15 is suspended sideways by the connecting member 30A and the connecting metal fitting 35 (second connecting member 30B), so that the connecting member 30A and the connecting metal fitting 35 (second connecting member 30B) hold the posture change. Means 30.

16 and 17 show a state in which the hanging metal fitting 15 is suspended by the connecting member 30A formed by the half-split member 38 in the engaging groove 37 of the metal fitting side engaging portion 32 whose opening direction is changed.
Further, as shown in FIG. 18, the connecting metal fitting 35 (second connecting member 30B) is suspended in advance from the hanging device T (hanging hook 17), and the engaging member 21 is inserted through the connecting metal fitting 35 in advance. The hanging metal fitting 15 is suspended from the hanging device T (hanging hook 17) so as to be in an upright posture, and the hanging metal fitting 15 in this state is connected to the vertical division work rod 1, but the horizontal division work is performed. When connecting to the rod 1, for example, once the wire 16 is loosened, the hanging device T (hanging hook 17) is lowered, the hanging metal fitting 15 is turned sideways, and in this state, the hanging device T (hanging hook 17) is turned sideways. ), The connecting member 30A of the half-split member 38 inserted through the connecting metal fitting 35 is engaged with the metal fitting side engaging portion 32 of the hanging metal fitting 15, and the hanging metal fitting 15 is suspended sideways (FIG. 13).

In this way, the posture change holding means 30 is composed of a plurality of members of the connecting member 30A and the connecting fitting 35 (second connecting member 30B), and the connecting member 30A is inserted into the connecting fitting 35 (second connecting member 30B). When the hanging metal fitting 15 attached to the split work rod 1 is lifted in the horizontal posture, the connecting member 30A is simply disengaged from the metal fitting side engaging portion 32 to shift to the hanging posture of the split work rod 1. And make the whole work easier.
FIG. 19 shows a state in which the hanging metal fitting 15 is turned sideways by the connecting member 30A shown in FIG. 11D, and the pair of engaging legs 40 are directly suspended from the hanging device T (hanging hook 17) of the connecting member 30A. The shaft member 41 is configured to be inserted into a metal fitting side engaging portion 32 formed by a through hole 43 provided on the hanging metal fitting 15 side.
Therefore, in advance, the posture change holding means 30 inserts the shaft member 41 of the connecting member 30A into the through hole 43 which is the metal fitting side engaging portion 32 of the hanging metal fitting 15, and attaches the lower portion of the engaging leg 40 to the shaft member 41. The connecting member 30A is attached to the hanging metal fitting 15, and the engaging leg 40 of the connecting member 30A is erected and suspended from the suspension device T (suspension hook 17) so as to be in a sideways posture.

FIG. 20 shows another embodiment of the posture change holding means 30, which is intermediate between the connection fitting 35 (second connecting member 30B) suspended from the suspending device T (suspension hook 17) by the ring member 44 (connecting member 30A). An intermediate hook is provided in an engaging hole 46 in which a hook 45 (third connecting member 30C) is suspended in advance and the metal fitting side engaging portion 32 on the hanging metal fitting 15 side is formed in an inverted “U” shape by a shaft member. The hanging metal fitting 15 is suspended sideways by engaging 45 (third connecting member 30C).
In addition to the sideways posture, the posture of the hanging metal fitting 15 is maintained in an oblique posture by the posture changing holding means 30 by changing the relative position of the metal fitting side engaging portion 32 with respect to the hanging metal fitting 15. It may be adjusted to the storage posture of the split work rod 1 installed and stored by any means.

The gist of the present invention is to configure the hanging metal fitting 15 for suspending the split work rod 1 so that the posture of the hanging metal fitting 15 can be changed. The configuration of the connection portion 19 is not a requirement, and the metal fitting side connection portion 19 in FIG. 4 is formed in the shape of a female joint of a so-called male and female joint, but the upper connection portion 10 of the split work rod 1 is formed in the shape of a female joint. , The metal fitting side connection portion 19 of the hanging metal fitting 15 may be formed in a shape opposite to the male joint shape, and when the male joint shape is formed as shown in FIG. A key groove 48 may be provided as in the case of 23 to form a cross-section cross, and although not shown, the joint may be formed into a joint shape having the same shape without males and females. Reference numeral 49 is an engaging groove in which the engaging pin 27 is engaged.
Further, as shown in FIG. 10, when the engaging groove 26 of the upper connecting portion 10 of the split work rod 1 is provided in different phases in the vertical direction (left and right in FIG. 10), the hanging metal fitting 15 is provided as shown in FIG. By arranging a pair of left and right pin insertion holes 28 vertically in the metal fitting side connection portion 19 in line with the engagement groove 26, it is easy to align the pin insertion hole 28 with the engagement groove 26 of the split work rod 1. It is suitable because it can be made.

(Action of Embodiment)
The present invention has the above configuration, for example, when connecting the upper part of the work rod R to the rotary shaft body 6 of the rotary drive unit 5 attached to the leader 4 provided in the base machine 3 so as to be vertically movable, the plurality of split work rods 1 Is transported and moved using the hanging metal fitting 15, and each split work rod 1 is added in the length direction to be used as a work rod R having a predetermined length.
The hanging metal fitting 15 used for adding, separating, and the like of the dividing work rod 1 is on the metal fitting side to be attached to the hanging mounting portion 18 used when suspending from the hanging device T and the upper connecting portion 10 of the dividing work rod 1. A connecting portion 19 is provided, and the split work rod 1 in the vertical state is suspended by engaging the engaging member 21 of the hanging metal fitting 15 with the suspending device T.
In this case, the hanging mounting portion 18 is formed with a pair of engaging portions 22 formed to be wider than the plate thickness of the hanging mounting portion 18 of the hanging bracket 15 and narrower than the outer diameter of the metal fitting side connecting portion 19 of the hanging bracket 15. The engaging portion 22 in this state is connected by the shaft member 23 inserted into the insertion hole 20, and the engaging member 21 is attached to the hanging metal fitting 15.

Therefore, the engaging portion 22 of the engaging member 21 always faces the suspending device T in the same direction, so that the hanging metal fitting 15 can be easily engaged with the suspending device T.
In the work of connecting the metal fitting side connection portion 19 of the hanging metal fitting 15 to the upper connecting portion 10 of the split work rod 1, the hanging metal fitting 15 is configured to have a predetermined weight, and the hanging metal fitting 15 is manually lifted. Since it is not easy to connect to the split work rod 1, it is connected to the split work rod 1 in a state where the hanging metal fitting 15 is suspended by the suspension device T. However, in the present invention, the split work rod 1 is in a posture other than the standing posture. Then, the hanging posture of the hanging metal fitting 15 is changed and held by the posture change holding means 30 according to the posture of the split work rod 1 before connecting the hanging metal fitting 15, and in this state, the metal fitting side of the hanging metal fitting 15 is held. The axial center direction (connection direction) of the connection portion 19 is opposed to the upper connection portion 10 of the split work rod 1 and connected.

That is, the hanging metal fitting 15 is made to change its posture by the posture changing holding means 30 so that the axial center direction of the metal fitting side connecting portion 19 coincides with the axial center direction of the split work rod 1 to be joined. The hanging metal fitting 15 is moved while being supported by the hanging device T, and the position and connection between the hanging metal fitting 15 and the split work rod 1 are manually performed in this supported state.
Therefore, it is not necessary to manually support the weight of the hanging metal fitting 15 while the hanging metal fitting 15 is being connected, which facilitates the work of nodding.
Therefore, the hanging metal fitting 15 is set to the horizontal split work rod 1 by the posture change holding means 30 so that the axial direction of the metal fitting side connection portion 19 of the hanging metal fitting 15 is set to the horizontal sideways tilting posture. Perform connection work.

The posture change holding means 30 is provided with an upper connecting portion 31 engaged with the suspension device T side at the upper portion, and has a lower connecting portion 33 engaging with the metal fitting side engaging portion 32 on the hanging metal fitting 15 side at the lower portion. Since it is configured, the upper connecting portion 31 of the posture change holding means 30 is engaged with the suspension device T, and the lower connecting portion 33 of the posture change holding means 30 is engaged with the metal fitting side engaging portion 32 of the hanging metal fitting 15. Then, the hanging metal fitting 15 is suspended from the hanging device T in a sideways posture, and the metal fitting side connecting portion 19 of the hanging metal fitting 15 can be easily connected to the split work rod 1 in the sideways posture.

In this case, the posture change holding means 30 may be configured to connect the hanging device T side and the hanging metal fitting 15 side, and the configuration is arbitrary. For example, the posture change holding means 30 is located on the hanging device T side. It suffices to be composed of a connecting member 30A having an upper connecting portion 31 to be mounted (engaged) and a lower connecting portion 33 to be mounted (engaged) on the hanging metal fitting 15 side. Since it is composed of a seamless "O" -shaped connection fitting called a so-called master link, the upper arc portion is formed as the upper connecting portion 31 and the lower arc portion is formed as the lower connecting portion 33. Therefore, the upper connecting portion 31 of the connecting member 30A is suspended to the suspension device T side, and the lower connecting portion 33 of the connecting member 30A is engaged with the metal fitting side engaging portion 32 of the hanging metal fitting 15, and in this state, When the suspending device T is raised, the hanging metal fitting 15 is suspended sideways to the suspending device T.

At this time, since the metal fitting side engaging portion 32 is provided at a position substantially above the center of gravity G of the horizontal hanging metal fitting 15, the hanging metal fitting 15 can be easily held in the horizontal posture.
That is, since the metal fitting side engaging portion 32 to which the connecting member 30A of the posture change holding means 30 is attached is provided at a position substantially above the center of gravity G of the lateral hanging metal fitting 15, it is suspended only by the connecting member 30A of the posture change holding means 30. The metal fitting 15 can be hung sideways from the suspension device T, and the posture of the hanging metal fitting 15 can be adjusted to the split work rod 1 in the horizontal posture with a simple configuration.
Further, since the metal fitting side engaging portion 32 is configured by forming an engaging groove 37 by the protrusion 36 as an example, it is tentatively suspended by the engaging member 21 on the suspending device T, for example, as shown in FIG. Even if the metal fitting 15 is suspended, the suspension device T is lowered to turn the hanging metal fitting 15 sideways, and in this state, the posture change holding means 30 is under the connecting member 30A on the metal fitting side engaging portion 32 of the hanging metal fitting 15. By engaging the side connecting portion 33, the hanging metal fitting 15 can be held in the sideways posture.

The shape of the metal fitting side engaging portion 32 is arbitrary as long as it has the engaging groove 37, but the metal fitting having the engaging groove 37 formed downward with reference to the hanging metal fitting 15 in the upright posture in FIG. 11 (A). In the side engaging portion 32, when the lower connecting portion 33 of the posture change holding means 30 is engaged with the engaging groove 37 from the right side in FIG. 11A, the lateral posture of the hanging metal fitting 15 can be held.
Similarly, in the metal fitting side engaging portion 32 in which the engaging groove 37 is formed upward with reference to the hanging metal fitting 15 in the upright posture in FIG. 13, the lower connecting portion 33 of the posture change holding means 30 is provided from the left side in FIG. When engaged with the engaging groove 37, the sideways posture of the hanging metal fitting 15 can be maintained.
Similarly, in the metal fitting side engaging portion 32 formed by opening the engaging groove 37 in either the left or right direction in the left-right direction with respect to the hanging metal fitting 15 in the upright posture of FIG. 14, the metal fitting side engaging portion 32 is formed in the back side or the front side in FIG. By engaging the lower connecting portion 33 of the posture change holding means 30 with the engaging groove 37 from the side, the lateral posture of the hanging metal fitting 15 can be held.

Further, in the posture change holding means 30 of FIG. 15, a pair of "U" -shaped half-split members 38 are axially connected to a connection fitting 35 (second connecting member 30B) suspended in advance from the suspension device T. The first connecting member 30A formed in the shape of "O" by being connected by the shaft member 39 is connected, and the lower connecting portion 33 of the lower half split member 38 of the first connecting member 30A is connected to the metal fitting side engaging portion 32. To hold the hanging metal fitting 15 in a lateral hanging posture.
Further, as shown in FIG. 18, the connecting metal fitting 35 (second connecting member 30B) is suspended from the suspending device T in advance, and the engaging member 21 is inserted into the connecting metal fitting 35 (second connecting member 30B) in advance. The hanging metal fitting 15 is suspended from the hanging device T in an upright position, and once the hanging metal fitting 15 is lowered by the hanging device T and placed on the ground, the hanging metal fitting 15 is turned sideways by any method. When the connecting member 30A of the half-split member 38 previously inserted into the connecting metal fitting 35 (second connecting member 30B) of the hanging device T is engaged with the metal fitting side engaging portion 32 of the hanging metal fitting 15 turned sideways, the suspension is suspended. The metal fitting 15 is suspended sideways to be in the state shown in FIG.

In the embodiment of FIG. 19, the posture change holding means 30 is connected to the lower portions of a pair of upside-down "U" -shaped engaging legs 40 by a shaft member 41 to form a connecting member 30A, and a pair of connecting members 30A. Since the engaging leg 40 is directly suspended from the suspension device T and the shaft member 41 of the connecting member 30A is inserted into the metal fitting side engaging portion 32 formed by the through hole 43 provided on the hanging metal fitting 15 side, it is configured in advance. In the connecting member 30A, the shaft member 41 is inserted into the through hole 43 of the metal fitting side engaging portion 32 of the hanging metal fitting 15, the lower portion of the engaging leg 40 is attached to the shaft member 41, and the engaging leg 40 is erected to elevate the hanging device T. Engage in and hang.
The shaft member 41 inserted through the through hole 43 of the metal fitting side engaging portion 32 may be inserted into the engaging leg 40 of the connecting member 30A suspended from the suspending device T, and the work order is arbitrary.

In another embodiment of FIG. 20, the intermediate hook 45 (third connecting member 30C) is suspended in advance by the ring member 44 (connecting member 30A) on the connecting fitting 35 (second connecting member 30B) of the suspending device T. Therefore, the hanging metal fitting 15 is hung sideways by engaging the intermediate hook 45 with the engaging hole 46 in which the metal fitting side engaging portion 32 on the hanging metal fitting 15 side is formed in an inverted “U” shape by the shaft member. The sideways posture of the hanging metal fitting 15 is maintained.
In the present invention, the sideways posture of the hanging metal fitting 15 is held only by the posture change holding means 30, but the sideways posture of the hanging metal fitting 15 may be held by the engaging member 21 and the posture change holding means 30.

Further, the above-mentioned work procedure is optional, and the posture change holding means 30 is separately prepared, the hanging metal fitting 15 is set to the sideways posture, and the posture changing holding means is attached to the metal fitting side engaging portion 32 of the hanging metal fitting 15. The lower connecting portion 33 of the connecting member 30A of 30 is engaged, and then the upper connecting portion 31 of the first connecting member 30A is engaged with the connecting fitting 35 (second connecting member 30B) on the suspension device T side. May be good.
Further, in some drawings, the engaging member 21 of the hanging metal fitting 15 is not shown for ease of understanding, but this does not limit the configuration of the present invention.

Further, the posture change holding means 30 may be configured by preparing connecting members having various shapes by means of a connecting member 30A, a connecting metal fitting 35 (second connecting member 30B), or the like, and appropriately selecting and combining a plurality of connecting members. Well, if the hanging posture of the hanging metal fitting 15 can be changed to the hanging device T, the configuration is arbitrary.
Then, when the metal fitting side connecting portion 19 of the hanging metal fitting 15 suspended sideways by the posture change holding means 30 is connected to the upper connecting portion 10 of the split work rod 1, the lower connecting portion 33 of the posture changing holding means 30 is connected to the metal fitting. The split work rod 1 is disengaged from the side engaging portion 32, then the posture holding state by the posture change holding means 30 is released, and the hanging metal fitting 15 and the split work rod 1 are lifted and carried by the hanging device T. The lower connecting portion 11 is connected to the upper connecting portion 10 of the separately prepared split work rod 1, then the hanging bracket 15 is removed from the upper connecting portion 10 of the split work rod 1, and the removed hanging bracket 15 is attached to the above. By changing and holding the posture to the sideways posture by the posture change holding means 30, the rod 1 is connected to another sideways split work rod 1 for the next connection work, and this is repeated to connect the plurality of split work rods 1. A work rod R having a desired length used for civil engineering work.

1 ... split work rod, 2 ... excavator, 3 ... base machine, 4 ... leader, 5 ... rotary drive unit, 6 ... rotary shaft body, 10 ... upper connection part, 11 ... lower connection part, 15 ... hanging bracket, 16 ... Wire, 17 ... Suspension hook, 18 ... Suspension mounting part, 19 ... Metal fitting side connection part, 20 ... Insertion hole, 21 ... Engagement member, 22 ... Engagement part, 23 ... Shaft member, 25 ... Fitting Hole, 26 ... engaging groove, 27 ... engaging pin, 28 ... pin insertion hole, 30 ... posture change holding means, 30A ... connecting member (first connecting member), 30B ... second connecting member, 30C ... third connecting Member, 31 ... upper connecting part, 32 ... metal fitting side engaging part, 33 ... lower connecting part, 35 ... connecting metal fitting, 36 ... protrusion, 37 ... engaging groove, 38 ... half split member, 39 ... connecting shaft member, 40 ... engaging legs, 41 ... shaft members, 43 ... through holes, 44 ... ring members, 45 ... intermediate hooks, 48 ... key grooves, 49 ... engaging grooves, T ... hanging devices, R ... working rods.

Claims (8)

A split work rod 1 formed with a predetermined length and provided with an upper connecting portion 10 and a lower connecting portion 11 for adding to both upper and lower ends thereof is added in the length direction and used for civil engineering work. The work rod R of the equipment to be used is the work rod R, and the hanging metal fitting 15 used for the additional division work of the division work rod 1 to be the work rod R is either the upper connection portion 10 or the lower connection portion 11 of the division work rod 1. A tubular metal fitting side connection portion 19 to be connected to the metal fitting side and a suspension mounting portion 18 for mounting an engaging member 21 suspended by the suspension device T for suspending the suspension metal fitting 15 are provided, and the suspension metal fitting 15 is configured. Splitting work before connection The suspending device so that the axial direction of the upper connecting portion 10 and the lower connecting portion 11 of the rod 1 and the axial direction of the metal fitting side connecting portion 19 of the hanging metal fitting 15 match. A hanging metal fitting provided with a posture changing holding means 30 for changing and holding the posture of the hanging metal fitting 15 suspended from T. In claim 1, the posture change holding means 30 engages with the upper connecting portion 31 that engages with the suspension device T side provided at the upper part and the metal fitting side engaging portion 32 on the hanging metal fitting 15 side provided at the lower part. A hanging metal fitting configured by providing each of the lower connecting portion 33. In claim 2, the posture change holding means 30 is a hanging metal fitting formed in a seamless "O" shape. In claim 2, the posture change holding means 30 is a hanging metal fitting formed by connecting a pair of "U" -shaped half-split members 38 with a shaft-shaped connecting shaft member 39 to form an "O" shape. In any one of claims 1 to 4, the metal fitting side engaging portion 32 is a hanging metal fitting formed by forming an engaging groove 37 with which the posture change holding means 30 is engaged by a protrusion 36. In any one of claims 1 to 5, the posture change holding means 30 is a hanging metal fitting composed of a connecting member 30A attached to the hanging metal fitting 15 side and a second connecting member 30B attached to the hanging device T side. .. In any one of claims 1 to 6, the metal fitting side engaging portion 32 on the hanging metal fitting 15 side with which the lower connecting portion 33 of the posture change holding means 30 engages is in a state in which the hanging metal fitting 15 is in a sideways posture. A hanging bracket placed approximately above the center of gravity G of. The engaging member 21 inserted into the insertion hole 20 of the hanging mounting portion 18 of the hanging metal fitting 15 is engaged with the connecting metal fitting 35 which is raised and lowered by the hanging device T, and the hanging metal fitting 15 is suspended in an upright state. The suspended hanging metal fitting 15 is lowered by the hanging device T to take a horizontal posture in which the axial direction of the tubular metal fitting side connecting portion 19 of the hanging metal fitting 15 is horizontal, and in this state, the metal fitting side of the hanging metal fitting 15 is set. The upper connecting portion 31 of the posture change holding means 30 attached to the engaging portion 32 is engaged with the connecting metal fitting 35 to hold the lateral posture of the hanging metal fitting 15, and in this state, the hanging metal fitting 15 is held by the hanging device T. The metal fitting side connection portion 19 is moved closer to and connected to the lower connection portion 11 of the split work rod 1 in the sideways posture, and then the posture holding state of the hanging metal fitting 15 by the posture change holding means 30 is released, and the hanging metal fitting 15 is released. The split work rod 1 is lifted and transported by the suspension device T, and the lower connection portion 11 of the transported split work rod 1 is connected to the upper connection portion 10 of the separately prepared split work rod 1, and then the split work rod 1 is divided. The hanging metal fitting 15 is removed from the upper connecting portion 10 of the work rod 1, and the removed hanging metal fitting 15 is changed and held in the sideways posture by the posture change holding means 30 as described above, and another horizontal division for the next connection work is performed. A method of using a hanging metal fitting that connects to a work rod 1 and repeats this to connect a plurality of split work rods 1 to form a work rod R having a desired length used for civil engineering work.

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