JP6868870B2 - Reinforcing bar assembly stand - Google Patents

Description

The present invention relates to, for example, a reinforcing bar assembling stand used for a reinforcing bar assembling work for binding reinforcing bars to each other.

For example, in the manufacture of precast PC (prestressed concrete) decks used as decks for road bridges, a large number of reinforcing bars may be arranged in parallel at intervals in the bridge axis direction, or at intervals in the vertical direction. A large number of reinforcing bars are arranged in parallel, and the reinforcing bars are arranged so as to be appropriately in contact with each other, and the contact points are bound by a number line or the like (Patent Document 1).

Japanese Unexamined Patent Publication No. 2001-49616

By the way, conventionally, the binding of the reinforcing bars is performed in a state where a plurality of reinforcing bars are laid down on a fixed pedestal.

Therefore, the bundling work is performed from the upper side of a plurality of reinforcing bars laid on the fixed pedestal, but the worker needs to bend down during the work, which puts a heavy burden on the human body. In addition, even if an attempt is made to improve efficiency by using a binding machine for binding work, the binding machine cannot enter from the upper side to the lower layer of a plurality of reinforcing bars laid on a fixed pedestal, and the binding of the reinforcing bars in the lower layer is performed. This is a manual operation, and this also causes a heavy burden on the operator and has a problem of poor work efficiency.

The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a reinforcing bar assembly stand capable of reducing the burden on the operator who binds the reinforcing bars and improving the work efficiency. is there.

In order to achieve the above object, the reinforcing bar assembly frame according to the present invention includes a holding frame for holding a plurality of reinforcing bars and an angle adjusting device for changing the inclination angle of the holding frame with respect to the horizontal plane . The angle adjusting device includes a base body arranged below the holding frame, a hinge portion for rotatably connecting one end of the base body and one end of the holding frame, and one end of the base body. A reinforcing bar assembly pedestal having a stretchable portion connected to a portion separated from the other end side of the portion and a portion separated from the one end portion to the other end side of the holding frame.
The holding frame has two long side portions and two short side portions, and a plurality of notched groove-shaped reinforcing bar holding grooves opened upward are provided at intervals on the upper portion of each long side portion. At the top of each short side, a plurality of reinforcing bar holding columns protruding upward are provided at intervals, and
The two short sides and one of the long sides are designed to be lifted around the hinge, and further.
The holding frame is not provided with a member that covers the reinforcing bars held by the holding frame from the front and back (claim 1).

In the reinforcing bar assembly stand, even if the reinforcing bar holding column is formed of a metal L-shaped angle having an L-shaped cross-sectional view and the orientation of the reinforcing bar holding column is determined so as to make surface contact with the reinforcing bar. Good (Claim 2).

According to the present invention, a reinforcing bar assembly stand capable of reducing the burden on the operator who binds the reinforcing bars and improving the work efficiency can be obtained.

That is, in the reinforcing bar assembly frame of the invention according to each claim of the present application, for example, the reinforcing bar assembly frame is placed in an inverted state to hold the reinforcing bar 1 in the holding frame 2, and then the reinforcing bar 1 is held in an upright state to perform binding work on the reinforcing bar 1. By doing so, the worker does not have to bend down all the time during the bundling work, the burden can be reduced, and the work efficiency can be improved.

Further, since the holding frame is not provided with a member that covers the reinforcing bars held by the holding frame from the front and back sides, the holding frame can be raised upright so that the reinforcing bars can be bound from both the front and back sides. All the binding work can be performed using the machine, which also contributes to the improvement of work efficiency.

Further, it is possible to simplify the configuration of the angle adjusting device so that the angle adjusting device does not easily interfere with the binding work of the reinforcing bars when the holding frame is in the upright state.

(A) and (B) are explanatory views which show the structure of the reinforcing bar assembly pedestal which concerns on one Embodiment of this invention which put the holding frame in the laid state and the upright state. (A) and (B) are a plan view and a side view showing the structure of the reinforcing bar assembly frame. (A) to (C) are a plan view, a front view, and a side view showing the configuration of a main part of the reinforcing bar assembly frame. It is a perspective view which shows schematic structure of the said reinforcing bar assembly pedestal.

Embodiments of the present invention will be described below with reference to the drawings.

The reinforcing bar assembly frame shown in FIGS. 1 to 4 extends in the front-rear direction and the left-right direction, and changes the inclination angle of the holding frame 2 with respect to the horizontal plane and the holding frame 2 for holding a plurality of reinforcing bars 1 arranged in multiple stages in the vertical direction. It is provided with an angle adjusting device 3 for this purpose.

As shown in FIG. 4, the holding frame 2 is composed of two long side portions 4 and two short side portions 5, and the upper portion of each long side portion 4 has a notched groove shape open upward. A plurality of reinforcing bar holding grooves 6 are provided at intervals, and a reinforcing bar holding column 7 (FIG. 6) is formed by an L-shaped cross-sectional view (metal L-shaped angle) protruding upward at the upper portion of each short side portion 5. 3 (A) to (C)) are provided at intervals.

Here, in FIG. 3B, the reinforcing bar 1A extending to the left and right on the paper surface is held by the reinforcing bar holding groove 6, and the reinforcing bar 1B extending in the depth (front) direction of the paper surface abuts on the reinforcing bar holding column 7 and is positioned. As can be understood from FIG. 3A, the orientation of the reinforcing bar holding column 7 is determined so as to make surface contact with the reinforcing bar 1B. In the example of FIG. 3A, the directions of the reinforcing bar holding column 7 on the left side and the reinforcing bar holding column 7 on the right side are reversed from the center.

When the reinforcing bars 1 are held by the holding frame 2, a spacer, a holding table, or the like (not shown) may be used in order to separate the plurality of reinforcing bars 1 up and down.

On the other hand, as shown in FIG. 4, the angle adjusting device 3 rotatably connects the base body 8 arranged below the holding frame 2, one end of the base body 8 and one end of the holding frame 2. The hinge portion 9, the portion of the base body 8 that is separated from one end to the other end, and the portion of the holding frame 2 that is separated from one end to the other end are connected and stretchable (power in this example). It has a cylinder) 10. Both ends of the telescopic portion 10 are pivotally supported by the holding frame 2 and the base body 8, respectively.

In this example, as shown in FIGS. 2A and 2B, a total of four base bodies 8 extending parallel to the short side portion 5 are provided at intervals in the length direction of the long side portion 4, and each base is provided. A hinge portion 9 and an expansion / contraction portion 10 are provided so as to correspond to the body 8. Then, these expansion / contraction portions 10 are simultaneously expanded / contracted by the operation of the operation unit 12 via the control unit 11.

That is, when the telescopic portion 10 is most contracted, the holding frame 2 takes the inverted state shown in FIG. 1 (A), and when the telescopic portion 10 is expanded, it is in the upright state shown in FIG. 1 (B). Then, for example, if the holding frame 2 is placed in an inverted state to hold the reinforcing bar 1 in the holding frame 2, and then the holding frame 2 is placed in an upright state to perform the binding work on the reinforcing bar 1, the operator can perform the binding work while performing the binding work. You don't have to bend down all the time, you can reduce the burden, and you can improve work efficiency.

Further, if the holding frame 2 or the like is not provided with a member that covers the reinforcing bar 1 held by the holding frame 2 from the front and back, and the elastic portion 10 is extended to raise the holding frame 2 in an upright state, the reinforcing bar 1 is provided. Since the binding work can be performed from both the front and back sides, all the binding work can be performed using the binding machine, which also contributes to the improvement of work efficiency. However, from the viewpoint of work efficiency and the like, it goes without saying that the binding work may be performed on the reinforcing bar 1 to the extent possible when the holding frame 2 is in the inverted state.

Further, in the reinforcing bar assembly frame of this example, the configuration of the angle adjusting device 3 is simplified so that the angle adjusting device 3 does not easily interfere with the binding work of the reinforcing bars 1 when the holding frame 2 is in the upright state. Is also possible.

Here, in FIGS. 1 (B) and 2 (B), an operator is drawn to show the size of the reinforcing bar assembly frame, and as shown in FIG. 1 (B), the rebar is in an upright state. When the rebar assembly stand is considerably taller than a person's height, a scaffolding or the like corresponding to the height may be appropriately used.

It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be variously modified and implemented without departing from the gist of the present invention. For example, the following modification examples can be given.

In addition to the power cylinder, the telescopic portion 10 may be configured by using a linear actuator such as a hydraulic cylinder or a pneumatic cylinder, or a mechanical device such as a jack. Further, the type is not limited to an electric type or a fluid-operated type (hydraulic or compressed air), and may be a mechanical type such as a screw type jack. Further, the telescopic portion 10 (angle adjusting device 3) may be configured so that the holding frame 2 can be angle-adjustable only in the two stages shown in FIGS. 1A and 1B, but can maintain an arbitrary angle. It is preferable that it is configured in.

In the above embodiment, the long side portion 4 is provided with the reinforcing bar holding groove 6, and the short side portion 5 is provided with the reinforcing bar holding column 7, but the present invention is not limited to this, and for example, the long side portion 4 is provided with the reinforcing bar holding column 7. Alternatively, the reinforcing bar holding groove 6 may be provided on the short side portion 5, and further, a configuration other than the reinforcing bar holding groove 6 and the reinforcing bar holding column 7 may be adopted for holding the reinforcing bar 1. In any case, it is desirable that the reinforcing bar 1 does not slide down when the reinforcing bar assembly frame is raised upright, and that the assembled reinforcing bar 1 can be easily removed from the reinforcing bar assembly frame.

Needless to say, the modifications given in the present specification may be combined as appropriate.

1 Reinforcing bar 1A Reinforcing bar 1B Reinforcing bar 2 Reinforcing bar 2 Holding frame 3 Angle adjusting device 4 Long side part 5 Short side part 6 Reinforcing bar holding groove 7 Reinforcing bar holding column 8 Base body 9 Hinge part 10 Telescopic part 11 Control part 12 Operation part

Claims (2)

A holding frame for holding a plurality of reinforcing bars and an angle adjusting device for changing the inclination angle of the holding frame with respect to the horizontal plane are provided, and the angle adjusting device is a base body arranged below the holding frame. A hinge portion that rotatably connects one end of the base body and one end of the holding frame, a portion of the base body separated from the one end to the other end, and one end of the holding frame. A reinforcing bar assembly stand that is connected to a portion separated from the portion on the other end side and has an expandable and contractible portion.
The holding frame has two long side portions and two short side portions, and a plurality of notched groove-shaped reinforcing bar holding grooves opened upward are provided at intervals on the upper portion of each long side portion. At the top of each short side, a plurality of reinforcing bar holding columns protruding upward are provided at intervals, and
The two short sides and one of the long sides are designed to be lifted around the hinge, and further.
A reinforcing bar assembly stand characterized in that the holding frame is not provided with a member that covers the reinforcing bars held by the holding frame from the front and back. The reinforcing bar according to claim 1, wherein the reinforcing bar holding column is formed of a metal L-shaped angle having an L-shaped cross-sectional view, and the orientation of the reinforcing bar holding column is determined so as to make surface contact with the reinforcing bar. Assembly stand.

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