JP4316775B2 - Rebar spacing retainer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a reinforcing bar interval holding tool that stably and securely positions crossing reinforcing bars in a reinforced concrete construction or other concrete product manufacturing, and maintains a constant interval between reinforcing bars and a formwork. It is.
[0002]
[Prior art]
Conventionally, it is necessary to select a rebar spacing retainer that is used when molding a U-shaped groove, box culvert, upper panel or block as a concrete product, depending on the place of use. Reinforcing bar interval holders that correspond to either one of them are used properly, and it is necessary to make the work cumbersome in the mounting work while using them properly. There was also a drawback that had to be prepared in large quantities.
In addition, if the upper panel is not a mere square shape and its edges overlap each other continuously, the shape of the connecting surface is required to be accurate, and the cover thickness is more accurate. There was a need.
[0003]
[Problems to be solved by the invention]
The present invention does not require different use for the crossed reinforcing bars of the vertical and horizontal bars, and facilitates the attachment to the reinforcing bars so that the covering thickness of the upper panel or block can be accurately and stably arranged. A rebar spacing retainer is provided.
[0004]
[Means for Solving the Problems]
The present invention is based on the above prior art, and in view of problems such as mounting workability and mounting stability of the reinforcing bar interval holder , a nail piece is provided in front of the reinforcing bar fitting part of the holding body integrally molded with synthetic resin. The left and right arm pieces are provided with arm portions with bifurcated ends at the left and right arm pieces , and on the back surfaces of the base end portions of the left and right arm pieces. Has a L-shaped plate-shaped latching portion that has a horizontal plate portion parallel to the rear arm piece with the tip directed backward, and is provided on the rear surface of one or both horizontal plate portions of the latching portion. By vertically projecting the spacing legs, the workability can be improved, and the bar arrangement of the upper panel can be positioned stably and firmly by the bifurcated arms, and the left and right arms Regardless of the place of use, the rebar spacing retainer attached to the crossing rebar by the part maintains the distance from the formwork And to kill such, it is obtained by solving cents above-mentioned drawbacks.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a holder main body according to the present invention, FIGS. 2 and 3 are a right side view and a rear view of FIG. 1, and 1 is a holder main body integrally molded with a synthetic resin.
[0006]
The holder body 1 has arm pieces 3, 4, 5 protruding in a substantially T shape (rear and left and right) with a substantially C-shaped rebar fitting portion 2 as the center, and the opposite side (front) of the arm piece 3. A pair of claw pieces 6 and 6a are formed to protrude.
The arm piece 3 has a base end that is the same width as the reinforcing bar fitting portion 2 and then decreases in width toward the distal end. The reinforcing bar fitting portion 2 is formed by a rib 7 that protrudes from the center of the upper surface of the arm piece 3. And the same thickness.
[0007]
The arm pieces 4 and 5 are formed with arms 8, 8 a, 9, 9 a by forming the base end of the same width as the inner diameter of the reinforcing bar fitting portion 2 and bifurcating the tip in the front-rear direction. Yes.
[0008]
The claw pieces 6 and 6a are tapered portions 11 that expand forward from both sides of the opening 10 provided on the front side surface of the reinforcing bar fitting portion 2 so that the reinforcing bar fitting portion 2 is suitable for fitting a reinforcing bar. 11a, extending from the tip, and made of a casing formed parallel to the middle, and if the reinforcing bar is pressed between the claw pieces 6 and 6a and pressed toward the opening 10, the tapered portions 11 and 11a Is expanded outward to push the opening 10 and the rebar is fitted to the rebar fitting part 2. Once the rebar is fitted, the stopper acts at the base end of the opening 10. So that it cannot easily escape.
[0009]
Reference numerals 12 and 12a denote L-shaped plate-like latching portions that are vertically projected on the rear surfaces of the base end portions of the arm pieces 4 and 5, respectively. The horizontal plate portions 13 and 13a of the latching portions 12 and 12a have their tips at the rear. Further, it is parallel to the rear arm piece 3 and is provided with a tapered spacing holding leg 14 projecting vertically from the back surface of the horizontal plate part 13a of the latching part 12a .
In addition, although the space | interval holding | maintenance leg part 14 illustrated what was formed only in one arm piece 5, you may form the space | interval holding | maintenance leg part 14 of the same shape in both the horizontal board parts 13 and 13a .
Reference numerals 15 and 16 denote ribs formed on the upper surfaces of the arm pieces 4 and 5.
[0010]
Next, the operation of the reinforcing bar interval holding tool according to the present invention will be described.
If the vertical reinforcing bar 17 is pushed in and inserted into the reinforcing bar insertion part 2 between the nail pieces 6 and 6a, and then the horizontal reinforcing bar 18 is attached between the arm piece 3 and the horizontal plate parts 13 and 13a , the horizontal reinforcing bar 18 becomes the reinforcing bar. It is firmly supported in a state where it intersects with the vertical reinforcing bar 17 fitted to the fitting part 2, and the horizontal reinforcing bar 18 touches the side surface of the arm piece 3 to improve the stability, and the back side of the arm parts 8 and 9. The side surface can be touched at, and stability can be further improved.
[0011]
【The invention's effect】
In short, in the present invention, the vertical reinforcing bar 17 is provided in the reinforcing bar fitting part 2 provided at the center of the holder body 1, and the arm pieces 4 projecting to the left and right of the reinforcing bar fitting part 2, and the L-shaped hooking part 12 at the lower part. , 12a and the other arm piece 3 are fitted and held in the horizontal rebar 18 so that the holder main body 1 can be easily attached to the rebar, and the arm piece 3, arm piece 4, 5 arm portion at the tip In the distance holding legs 14 at the lower portions of 8, 8a, 9, 9a and the latching portions 12, 12a, it is possible to obtain an accurate cover thickness in the protruding direction of each.
[0012]
In particular, due to the bifurcated arm portions 8, 8a, 9, 9a at the tips of the arm pieces 4, 5, the upper panel P is not a mere square shape, for example, as shown in FIG. Even if it is a form that overlaps continuously, the cover thickness can be obtained by one of the forked arms 8 and 9a, so that the use of the holder body 1 is not required, and the shape of the connecting surface is accurately molded. It can be done.
[0013]
Further, since one of the branched arm portions 8 and 9 protrudes in the protruding direction of the horizontal plate portions 13 and 13a , the horizontal reinforcing bar 18 is not only the arm piece 3 but also the arm portions 8 and 9 and faces them. Combined with the vertical reinforcing bar 17 in the reinforcing bar fitting part 2 that is firmly fitted and held between the horizontal flat plate parts 13 and 13a and is prevented from coming off at the base end of the opening 10, further reinforcement is arranged. Stability is improved.
[Brief description of the drawings]
FIG. 1 is a front view of a rebar spacing holder according to the present invention.
FIG. 2 is a right side view of FIG.
3 is a rear view of FIG. 1. FIG.
FIG. 4 is a partially omitted view showing a usage state of a reinforcing bar spacing holder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Holder body 2 Reinforcing bar insertion part 3 Arm piece 4 Arm piece 5 Arm piece 6, 6a Claw piece 8, 8a Arm part 9, 9a Arm part
12, 12a Hook
13, 13a Horizontal plate
14 Spacing legs

Claims (2)

A nail piece protrudes from the front of the rebar fitting part of the holder body integrally molded with synthetic resin , and an arm piece protrudes from the rear and the left and right, respectively. An arm portion having a bifurcated tip is provided , and an L-shaped plate-like shape having a horizontal plate parallel to the rear arm piece on the back surface of the base end portion of the left and right arm pieces is directed rearward. A reinforcing bar spacing holder characterized in that a latching portion is vertically projected and a spacing holding leg is vertically projected on the back surface of one or both horizontal plate portions of the latching portion. The reinforcing bar spacing holder according to claim 1, wherein one of the branched arms protrudes rearward .

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