JPS6212035Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reinforcing bar lifting machine that is used as a working machine when building a building by incorporating a large number of reinforcing bars. In the past, various types of rebar hoisting machines have been used when constructing buildings with rebar structures, but all of them are heavy and large in size.
In addition, many of them were bulky and too large to be used in the field and could not be easily moved by hand. The reinforcing bar hoisting machine of the present invention was devised in view of the current situation.The main purpose of the reinforcing bar hoisting machine of the present invention is to have a simple structure, light weight, and small bulk. Although some auxiliary tools may be used, the device as a whole is designed to be easily handled in any location. Embodiments of the present invention will be described in detail below based on the drawings. The main pillar 1 is made of a single lightweight pipe or the like of an appropriate thickness, and a plurality of small holes 10 are provided at appropriate positions on the side of the main pillar 1, into which fixing pins 43, which will be described later, are inserted. A lever hoist 9 is installed at the upper end of 1.
An eye bolt 11 is fixedly installed for attaching the eye bolts 11, etc., and a base plate 1 having an appropriate area is installed at the lower end to receive the load of the framework reinforcing bars installed on the eye bolt 11.
3 are connected and pivoted in a bendable manner via a support rod 12 of an appropriate length. In addition, as mentioned above, the base plate 13 supports the reinforcing bar load installed on the main reinforcing bar hoisting and holding machine, so the larger the area of the base plate 13, the greater the effect. When the base plate 13 is lowered into the ground, it is necessary to pull out the base plate 13 from between the installed reinforcing bars, so the base plate 13 requires a pivot structure and at the same time its size itself is limited. It was found that a spacing slightly smaller than twice the reinforcing bar spacing was good. The seat ring 2 is installed at the bottom of the main column 1 so that the main column 1 can stand upright by itself, and includes a ring body 20 that is fitted into the main column 1, a set screw 21 that fixes this to the main column 1, and the ring body. The seat ring 2 is made up of a plurality of plate bodies 22 having a spring effect provided in a skirt shape at the bottom of the seat ring 2. It is fixed. Both the latch fitting 3 and the latch fitting 4 are attached to the small hole 1 of the main pillar 1.
0 using a hook 31 or a retaining pin 43, which will be described later, and the retainer 3 is a "dog-shaped" hook 31 fixed in the center of an appropriate horizontal bar 30 by welding or the like. As shown in detail in FIG. 5, hooks 31 are inserted into the upper and lower parts of the small hole 10 of the main column 1 and are engaged and fixed. The latch fitting 4 includes a ring body 40 that is fitted into the main pillar 1, a hook fitting 41 that is pivotally supported by the ring body, and a retainer 42 that pivotally holds the hook fitting 41.
and a retaining pin 43 for latching the entire hook 4 to the main pillar 1, and the ring body 40 has an appropriate inner diameter in order to fit into the main pillar 1, and for pivotally supporting the hook 41 on the outer peripheral surface. A retaining metal 42 is fixedly installed,
On the other hand, a stop pin 43 is attached to an appropriate position by a chain or the like. The latch 4 is used to latch the main column 1 at an appropriate position with a fixing pin 43, and at the same time, the hook 41 holds the arm bar 5 in a recumbent state, and a reinforcing bar is installed horizontally on the arm bar 5. The frame reinforcing bars 100 are then assembled. Upper end eye bolt 11 of main pillar 1
A lever hoist 9 or the like is attached to the lever hoist 9 as necessary, and the hook or chain 90 used for this lever hoist 9 has a bifurcated structure 91 at the tip.
The chain or hook of this bifurcated structure 91 is connected to the main pillar 1.
It is installed by folding it between the legs. The reason why the chain or hook has a bifurcated structure 91 is that when hoisting the installed frame reinforcing bars 100, it is better to hoist the hook or chain 90 so as to cross the main column 1, since abnormal force will not be applied to the main column 1. This is because the diameter and material of the main pillar 1 can be reduced without adding additional material. The auxiliary rod 6 and stop plate 7 are used as supports for the main column 1 as needed in places where support is unstable with only one main column 1, and support is required.There are two auxiliary rods 6 . The plate rod 60 is made up of horizontally long plates facing each other, and the L rod 62 is fixed to the tip thereof. A retaining pin 63 is hung or provided independently at an appropriate position on the plate rod 60. The stop plate 7 is a ring body 7 for inserting and positioning the L rod 62 into a suitably shaped plate body 70.
1 or 2, and a mounting hole 72 for fixing the plate 70 at an appropriate position on the plate 70.
It has multiple . The method of use will be described below. As shown in FIG. 2, first, an appropriate number of main columns 1 are installed upright approximately in the center of a formwork 101 in which a frame reinforcing bar 100 is to be installed. At this time, the base plate 13 provided at the bottom of the main column 1 is placed directly below the main column 1 by means of a pivoting support rod 12, and is kept upright by the seat ring 2 provided directly above it. shall be established. Next, attach the latch 4 to the small hole 10 and the stop pin 4 at an appropriate position in the middle of the main pillar 1.
Use 1 to lock it. The arm bar 5 is held in a recumbent state by a hook metal fitting 41 that is pivotally mounted on the latch metal fitting 4 ,
Reinforcing bars (main bars) are attached at appropriate intervals on the arm bar 5 held in a recumbent position, and then starraps (sub-bars) are arranged at equal intervals, and these are tied together with binding wires to form a framework. The framework of the reinforcing bar 100 is completed. When the reinforcing bar framework is completed, the lever hoist 9 is attached to the required location of the reinforcing bar hoisting and holding machine using the eye bolt 11 at the upper end of the main column 1, and the hook at the tip crosses the main column 1 and attaches to the framework reinforcing bar 100. latched,
The entire frame reinforcing bar 100 is once lifted slightly upward, and in this state, the arm bar 5 is removed, and then the frame reinforcing bar 100 is gradually lowered to finally install the frame reinforcing bar 100 in the framed formwork 101. It is something. After the framework reinforcing bars 100 are installed in the formwork 101, the main column 1 is lifted upward while moving slightly back and forth and left and right. Since one end of the base plate 13 has a bent structure that pivots and supports, the base plate 13 and the support rod 12 form a chain and can be taken out. Further, the seat ring 2 has a structure in which the plate 22 provided at the lower end of the ring body 20 has a spring plate structure, so that the tip is narrowed and there is no problem in taking out the seat ring. As another embodiment, the latch 3 and the auxiliary rod 6 and stop plate used depending on the situation
To explain how to use 7 , the latching fitting 3 can be mixed with the latching fitting 4 when the load of reinforcing bars to be erected is relatively light, or as a simplified version of the latching fitting 4 in a place where the load is relatively light. The latch 3 is used by inserting the hook 31 into the upper and lower small holes 10 of the main column 1 and positioning and fixing it. Auxiliary rod 6 and stop plate 7
This usage method is used when the load applied to the main column 1 of the reinforcing bar lifting and holding machine is extremely large.
Align the small hole 61 provided in the plate rod 60 of the auxiliary rod 6 with the small hole 10 provided in the main pillar 1 at an appropriate position, insert the stop pin 6 to lock it, and attach it to the tip of the L rod 62 at the other end. The ring body 71 of the stop plate 7 is inserted into the stop plate 7, and the stop plate 7 is firmly fixed to the floor by nailing or the like using a mounting hole 72 formed in the plate body 70. It is also conceivable to fix by following this reverse procedure. As stated above, the reinforcing bar hoisting and holding machine of the present invention is equivalent to a simple reinforcing bar hoisting machine that is easy to handle, and is extremely lightweight and compact so that it can be easily handled by workers at construction sites. The first feature is the structure in which a single main column 1 supports the framed reinforcing bars 100, and most conventional reinforcing steel lifting machines have two main columns installed side by side. In the case of a gate-type frame column, the frame column is placed upright on both sides of the framed reinforcing bars 100 as a support, so in the case of a framed reinforcing bar placed at the corner of the building, one side is It was unusable due to the wall or no support. In this regard, since the reinforcing bar hoisting and holding machine according to the present invention only has one main column 1 in the center, it can be used anywhere, regardless of whether it is at a corner or an end. Second
A feature of the present invention is that the lifting mechanism such as the lever hoist 9 for lifting the frame reinforcing bars is attached only to appropriate locations as necessary. On the other hand, in the conventional reinforcing bar hoisting machine, this hoisting mechanism is exclusively incorporated into the entrance of the reinforcing bar hoisting machine, which makes the overall weight of the reinforcing bar lifting machine heavy along with the gate-shaped frame column, making it uneconomical. In this regard, the reinforcing bar hoisting and holding machine according to the present invention is capable of attaching a hoisting mechanism to the necessary location, so the weight of the machine without a hoisting mechanism is correspondingly lighter, and the main column 1 is lighter in weight. If you include the fact that only one piece is required, it is much lighter and easier to handle. Therefore, this simple and lightweight construction is ultimately extremely useful in improving work efficiency. As described above, the reinforcing bar hoisting and holding machine according to the present invention has a structure that is much lighter and less bulky than conventional products, and is intended to improve work efficiency and reduce costs.

[Brief explanation of the drawing]

Figure 1 is an exploded structural diagram showing the overall structure of the reinforcing bar hoisting and holding machine according to the present invention, Figure 2 is an explanatory external view showing how the machine is used, and Figures 3, 4, and 5 are A partial structural diagram of the machine, FIG. 6, is a situation explanatory diagram showing a state in which a lever hoist is attached to the machine. 1...Main pillar, 2 ...Seat ring, 3 ...Latching fitting, 6
... Auxiliary rod, 7 ... Stop plate, 9 ... Lever hoist, 4 ... Latching fitting, 5 ... Arm bar, 100 ... Frame reinforcing bar, 101 ... Formwork.

Claims (1)

[Scope of utility model registration request] A main pillar 1 consisting of a single pipe of an appropriate size is provided, and an eye bolt 11 for attaching a lever hoist 9 etc. is fixed to the upper end of the main pillar 1, and the lever hoist 9 is suspended by this eye bolt 11 and attached to it. The tip of the hook or chain 90 has a bifurcated structure 91, and a support rod 12 is attached to the lower end of the main column 1, and a base plate 13 is pivotably mounted on the tip of the support rod 12 so that the base plate 13 can be bent freely. A plurality of small holes 10 are provided at appropriate positions on the side of the main column 1, and a seat ring 2 for supporting itself is provided at an appropriate position at the lower part of the main column 1.
is fixed by screwing or the like, and latching metal fittings 3 and 4 are attached to the position of the small hole 10, which can be appropriately latched using the small hole 10, and the latching metal fitting 3
The structure is that there is a “dog” shaped hook 3 in the center of the horizontal bar 30.
1 is fixedly installed, and the structure of the latching bracket 4 is such that the arm bar 5 is detachably latched with the hook 41 . A reinforcing bar hoisting and holding machine characterized by being able to hold a reinforcing bar.