JPH0656058B2 - Reinforcement carrier device and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention can easily and easily transport heavy rebar not only on flat surfaces such as the ground, but also on rebars assembled in a grid pattern. The present invention relates to a rebar carrier that can be used and a carrying method using the same.

<Prior art> Conventionally, since there was no reinforcing bar transporting device suitable for transporting on a reinforcing bar arranged in a grid pattern, the reinforcing bar bundle carried by a crane or the like to a predetermined reinforcing bar work by several people. The workers carried the rebar by hand, in which each person made a group and carried small bars one by one to a predetermined position.

<Problems to be solved by the invention> However, it is used in many construction works, for example, 38
Since even a 12m spot rebar weighs about 100kg,
There is a problem that one rebar needs to be carried in small quantities by a joint work of 5 to 6 workers, and even if one worker is lacking, the small transportation bar work must be interrupted. It was Further, there is a problem in safety in that a heavy rebar is manually carried by an operator, and some improvement has been demanded.

Further, in order to avoid such a situation, the applicant has a fourth
We first proposed a rebar carrier as shown in the figure. Explaining this, a pair of left and right circular wheels 01, 01 rolling on a flat road surface and a pair of left and right flat wheels 03, 03 rolling on mutually parallel reinforcing bars 02, 02 are mounted on the same axle 04. Then, a middle portion of a frame 07 having a reinforcing bar receiving member 05 provided at the front end and a handle 06 provided at the rear end is pivotally mounted on the axle 04 so as to be tiltable back and forth. Reference numeral 08 is a reinforcing bar temporary support angle for supporting the reinforcing bars 02, 02 which are parallel to each other, 09 is a fork for scooping provided at the tip of the reinforcing bar receiver 05, and 010 is a reinforcing bar to be transported.

According to the reinforcing bar transporting device configured as described above, since the small carrying by hand is not forced, the workability and safety of the small carrying of the reinforcing bar can be improved, but when the scooping up the reinforcing bar, the reinforcing bar moves forward. At the same time you may run away to
If the frame is tilted significantly in the front-back direction during transportation, the reinforcing bar falls from the reinforcing bar receiver under its own weight, making it difficult to carry it in a stable manner. Moreover, it is not always possible to specify the unloading position (reinforcing position) of the reinforcing bar. There was a point.

The present invention was devised in order to solve the above-mentioned conventional problems, and at the time of scooping up the reinforcing bar, not only for carrying and holding,
An object of the present invention is to provide a reinforcing bar carrier that can further improve the stability during bar arrangement (unloading), and a carrying method using this carrier.

<Means for Solving Problems> In order to achieve the above object, in the present invention, a pair of left and right circular wheels rolling on a flat road surface and a pair of left and right flat wheels rolling on mutually parallel reinforcing bars are provided. A reinforcing bar transporting device is constructed by mounting the same axle on a front end portion of which is provided with a reinforcing bar gripping mechanism and a rear end portion of which is provided with a handle at an appropriate middle portion of a frame so that the frame can be tilted back and forth. Further, the present invention is characterized in that a plurality of reinforcing bar conveying devices having such a structure are arranged at a predetermined interval to convey a long reinforcing bar.

<Operation> As a result, on flat roads such as the ground, circular wheels with low running resistance are used to transport the reinforcing bars, and on the already reinforced bars, mutually parallel reinforcing bars are used as rails for flat wheels. By transferring to, a large number of long steel bars can be easily and safely arranged by a small number of people. In addition, by providing a reinforcing bar gripping mechanism, it prevents the reinforcing bar from escaping when it is scooped up, and at the same time prevents the reinforcing bar from falling accidentally during transportation and during unloading to ensure safety and accuracy during small transportation. I try to improve.

<Embodiment> An embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 3.

FIG. 1 is a perspective view showing an embodiment of a reinforcing bar conveying device according to the present invention. A pair of left and right running on the upper surface and flat surface of the vertical reinforcing bars 2 and 2 arranged on the temporary reinforcing bar receiving angle 1. An intermediate portion of a frame 5 is fixed to a central portion of an axle 4 having wheels 3 and 3 attached to both ends thereof.

The wheels 3 and 3 are cylindrical flat wheels 3a having a predetermined width.
And a circular wheel 3b having a diameter larger than that of the flat wheel 3a, and the circular wheel 3b is arranged outside the flat wheel 3a. The outer peripheral surface (traveling surface) of the flat wheel 3a is made of an iron plate or the like, and the circular wheel 3b is made of an air-filled rubber wheel as in the case of a conventionally known wheel.

Here, the frame 5 is composed of a fork 5a extending frontward and upward from the axle 4, and a lever arm 5b extending rearward and upward from the axle 4, and the lever 5b is made longer than the fork 5a. By connecting 5a and 5b at a right angle, a frame 5 having a substantially L shape as a whole is formed. The handle 6 is fixed to the tip (rear end) of the lever arm 5b, and the reinforcing bar receiving member 7 formed of an angle member is fixed near the front end of the fork 5a. The rebar can be placed on.

On the other hand, a rear end of the reinforcing bar receiving member 7 is pivotally attached to a rear end of a semicircular holding metal fitting 8 which is curved so as to bulge upward, and is pivotable up and down. The front end portion is inserted into the notch 7a formed in the front edge of the reinforcing bar receiving member 7 from above by its own weight, so that the upper part of the reinforcing bar receiving member 7 is openably and closably covered. Further, the metal fitting 8a implanted on the upper surface of the gripping metal 8 and the vicinity of the rear end of the lever arm 5b, that is, the vicinity of the handle 6 are loosely coupled via a vinyl-coated wire rope 9 so that the wire rope 9 When is pulled to the front side, the gripping metal 8 is rotated backward against its own weight so that the upper portion of the reinforcing bar receiving member 7 can be opened. A reinforcing bar gripping mechanism is constituted by the reinforcing bar receiving material 7, the grip fitting 8 and the wire rope 9.

Then, a bracket is provided near the front end of the lever arm 5b.
The auxiliary wheel 11 having a cylindrical shape is axially attached via 10 so that the auxiliary wheel 11 can be grounded if necessary. 12 is a stay for reinforcement.

For example, in the case of carrying the horizontal reinforcing bar 13 superposed on the vertical reinforcing bar 2 using the reinforcing bar carrying device configured as described above,
After pulling the wire rope 9 toward the front side and rotating the holding metal fitting 8 rearward, the lever arm 5a is greatly moved forward and the reinforcing bar support member 7 attached to the tip of the fork 5b is attached to the horizontal reinforcing bar.
Insert under 13. Then, the wire rope 9 is released and the gripping metal 8 is rotated and returned forward by its own weight to restrain the horizontal reinforcing bar 13 on the reinforcing bar receiving member 7, and then the handle 6 is operated to return the lever arm 5a to return the horizontal reinforcing bar 13. Scoop up. Therefore, the horizontal rebars 13 that are about to be scooped do not escape forward, so that the scooping workability and safety of the horizontal rebars 13 are improved.

Next, the flat wheels 3a are rolled on the upper surface of the vertical reinforcing bars 2 and carried to a predetermined position. In this transportation, the flat wheels 3a, 3a roll on the upper surfaces of the vertical reinforcing bars 2, 2 adjacent to each other. The running resistance is small, and moreover, the height of the handlebar 6 is adjusted to adjust the lifting angle of the fork 5b, so that the reinforcing bar support member 7 is positioned immediately above the wheel 4 so that the front-rear balance (addition to the handlebar 6) is achieved. Since the vertical load) can be adjusted arbitrarily, even a heavy-weight reinforcing bar can be safely transported while maintaining a good balance in the left-right and front-back directions.

Further, for example, when getting over the horizontal reinforcing bar 13, the circular wheel 3b having a larger diameter than the flat wheel 3a rolls on the horizontal reinforcing bars 13, 13. Therefore, even when the horizontal reinforcing bars 13 and 13 are superposed on the upper surfaces of the vertical reinforcing bars 2 and 2, the reinforcing bar conveying device can easily travel. Further, since the horizontal rebars 13 are restrained by the grips 8, even if the angle of the frame 5 (the height of the handle 6) changes significantly during transportation, the horizontal rebars 13 will fall from the reinforcing bar receiving material 7. It is safe without any problems.

Further, after carrying the horizontal rebars 13 to a predetermined position in this way, the handle 6 is largely lifted and rotated, and then the wire rope 9 is pulled toward the front side to release the restraint by the grasping metal fittings 8. Horizontal rebar 13 placed on top of 7
Is discharged forward by its own weight. During such transportation (during running), the horizontal reinforcing bars 13 are not released until the gripping metal fitting 8 is opened, so that the unloading position of the horizontal reinforcing bars 13 can be specified, thereby improving the accuracy of small transportation bar arrangement work. Can be higher.

When the auxiliary wheel 11 is provided as in the embodiment, the auxiliary wheel 11 can also be brought into rolling contact, so that the traveling stability of the carrying device can be improved. Also, this auxiliary wheel 11
Since the front wheel 3 can be levitated using the fulcrum as a fulcrum, it is possible to improve the ability to climb over obstacles not only when traveling on a flat road surface but also when traveling on the upper surface of the vertical reinforcing bar 2. There is no need to provide 11.

FIG. 3 shows a state in which long rebars are transported by the second invention, and two rebar transports separated by a predetermined distance according to the length of the rebar 13 to be transported in this manner. By using the device, it is possible to easily and stably transport long rebars that are heavy and have poor handleability.

In addition, in order to improve the change in pitch of the vertical reinforcing bars 2 and 2 and the adaptability to the lap portion, the width of the flat wheel 3a is set to, for example, 3 of the reinforcing bar width.
It may be about 4 times or more wide, and it is desirable that the circular wheels 3b, 3b are made up of pneumatic rubber wheels or the like in order to improve the crossing performance of the horizontal reinforcing bars and the like. The specific structure of 3b is arbitrary.

<Effects of the Invention> As described above, according to the present invention, even a heavy rebar can be easily and safely carried by a small number of workers, for example, to a small position from a crane. The unloading work, the binding work, and the small reinforcing bar transportation and reinforcing work can be performed in parallel, which can shorten the reinforcing bar process. Also, since the transport device has a simple structure and a small weight,
The carrying device can be easily moved by human power. Further, it goes without saying that it is possible to easily transport long heavy objects such as reinforcing bars not only on the reinforcing bars arranged in a grid pattern, but also on flat ground. Furthermore, since a reinforcing bar gripping mechanism is provided to prevent the reinforcing bar from accidentally falling, it is possible to prevent the reinforcing bar from falling while traveling, and at the same time when scooping up and unloading the reinforcing bar. The work accuracy and safety can be improved, and thus the workability of small transportation of the reinforcing bars can be greatly improved.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of a reinforcing bar carrying device according to the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a schematic perspective view showing a state of carrying a long rebar using the carrying device. FIG. 4 and FIG. 4 are schematic perspective views illustrating the rebar carrier apparatus proposed previously. 2 …… Vertical rebar, 3 …… Wheel 3a …… Flat wheel, 3b …… Circular wheel 4 …… Axle, 5 …… Frame 5a …… Fork, 5b …… Lever arm 6 …… Handle, 7 …… Reinforcing bar support 8 …… Grip fitting, 9 …… Wire rope 13 …… Horizontal rebar

Claims (5)

[Claims] 1. A pair of left and right circular wheels rolling on a flat road surface and a pair of left and right flat wheels rolling on mutually parallel reinforcing bars are mounted on the same axle, and a reinforcing bar gripping mechanism is provided at the front end. A reinforcing bar carrying device characterized in that a proper portion of an intermediate portion of a frame provided with a handle at a rear end portion is pivotally attached to the axle so as to be capable of tilting forward and backward. 2. The reinforcing bar carrying device according to claim 1, wherein the frame is provided with auxiliary wheels that are grounded on the handle side of the circular wheels and the flat wheels. 3. The reinforcing bar gripping mechanism is composed of a reinforcing bar receiving material, a gripping metal piece for removably gripping the reinforcing bar on the reinforcing bar receiving material, and a wire for opening and closing the gripping metal piece. The reinforcing bar conveying device according to claim 1 or 2, which is characterized. 4. A pair of left and right circular wheels rolling on a flat road surface and a pair of left and right flat wheels rolling on mutually parallel reinforcing bars are mounted on the same axle, and a reinforcing bar gripping mechanism is provided at the front end. A reinforcing bar conveying method characterized in that a reinforcing bar conveying device is configured to have a frame provided with a handle at a rear end thereof and an appropriate place in the middle portion of the frame being pivotally attached to the axle so as to be tiltable forward and backward. 5. The reinforcing bar conveying method according to claim 4, wherein a plurality of reinforcing bar conveying devices are arranged at a predetermined interval to convey long rebars.