JP7090898B2 - Top level control tool - Google Patents

Description

The present invention relates to a top level control tool used for setting the top level of a concrete structure such as a solid foundation or a floor slab (slab) constructed by placing concrete on horizontally arranged reinforcing bars.

Conventionally, when constructing a solid foundation or floor slab (slab) where reinforcing bars are arranged horizontally, a crown level control tool is attached to the intersection of the reinforcing bars, and concrete is placed using this top level control tool as a mark. Is being done. For example, in Patent Document 1, in order to fix the vertical bar and the horizontal bar at the intersection, the horizontal bar fixing portion is integrally formed in a cross shape as well as the concave vertical bar fixing portion in which the flat plate is bent into a substantially L shape. A construction spacer is disclosed, which is a support rod having a fixture and a support rod having a sponge at the tip, which is the same as or slightly longer than the floor thickness in the vertical direction at the intersection of the vertical bar fixing portion and the horizontal bar fixing portion. ing.

Further, Patent Document 2 includes a main body, a fastening bolt, and a top bar, and the main body is formed by bending a plate material into a square U shape, and a hook portion formed on the free end side of both side plate portions thereof. A first screw hole is provided in the bottom plate portion connecting both side plates so as to face the hook portion and a fastening bolt is screwed through, and a top plate portion is provided adjacent to the first screw hole and is provided in the top plate portion. A second screw hole to which the end rod can be detachably attached, a right-angled third screw hole provided on one side plate of both side plates to which the top rod can be detachably attached, and the other side plate. A top point having a top rod insertion hole provided at a position facing the third screw hole is disclosed.

Japanese Patent No. 4226195 Japanese Patent No. 4928411

In the construction spacer described in Patent Document 1, when the spacer is attached to the intersection of the reinforcing bars, the vertical bar fixing portion is arranged on the vertical bar, the horizontal bar fixing portion is arranged on the horizontal bar, and then the vertical bar fixing portion and the horizontal bar fixing portion are respectively. Since it is necessary to bend and fix the protrusion, the installation work is troublesome. Further, when the protruding portion is bent, if it is not bent so as to be in close contact with the reinforcing bar, the building spacer will wobble, and there is a problem that the support rod becomes unstable.

Further, at the top point described in Patent Document 2, the hook portion of the main body is hooked from the side to the lower reinforcing bar in the direction in which the fastening bolt is located below the lower horizontal bar, and the fastening bolt is tightened to hook. The lower horizontal bar is sandwiched between the part and the tip of the fastening bolt, but since the horizontal bar is usually a deformed steel bar with uneven protrusions on the surface, it is difficult to stably tighten it with the fastening bolt. However, there is a problem that the main body rotates when the tightening is loose.

An object of the present invention is to provide a crown level control tool that is easy to install and can set the crown level stably.

The top level control tool of the present invention is a top level control tool attached to a bar arrangement, and is attached from a support portion that supports a level setting bar that serves as a mark for the top level and an upper part of the bar arrangement. A pair of legs extending downward so as to straddle the reinforcing bar, and extending diagonally upward from the lower end of the pair of legs toward the center of the reinforcing bar, and below the reinforcing bar. It is provided with a clip portion having a pair of claw portions with which the tip portion abuts on the side surface.

In this crown level control tool, by attaching the clip portion from the upper part of the reinforcing bar, the level setting rod supported by the support portion can be used as a mark of the crown level. Further, when the clip portion is attached to the bar arrangement, the bar arrangement contacts the inner surface of the pair of claws and passes through the inside of the pair of claws while expanding the pair of legs outward, and the pair of legs. It enters the inside of the portion and is fixed to the inside of the pair of legs by contacting the tips of the pair of claws with the lower side surface of the reinforcing bar, and does not easily come off. Even if the outer diameters of the reinforcements are slightly different, the reinforcements are fixed to the inside of the pair of legs as long as the pair of claws has an outer diameter that abuts on the lower side surface of the reinforcements. ..

Further, another top level control tool of the present invention is a top level control tool attached to the intersection of the lower rebar and the upper rebar crossed in a cross shape extending in the horizontal direction, respectively, and is a top level control tool. It is inserted into the support part that supports the level setting bar, which is a mark of the level, and the position that sandwiches the lower reinforcing bar under the upper reinforcing bar at the intersection of the reinforcing bars, respectively, and the lower side surface of the upper reinforcing bar. A pair of arms in contact with the lower reinforcing bar, a clip portion attached from the upper part of the lower reinforcing bar, a pair of legs extending downward so as to straddle the lower reinforcing bar, and a lower end portion of the pair of legs. It is provided with a clip portion extending diagonally upward toward the center of the lower reinforcing bar and having a pair of claw portions with a tip portion abutting on the lower side surface of the lower reinforcing bar.

In this crown level control tool, a pair of arms are inserted into the lower side of the upper reinforcing bar at the intersection of the reinforcing bars and at the position where the lower reinforcing bar is sandwiched, and are brought into contact with the lower side surface of the upper reinforcing bar. By attaching the clip portion from the upper part of the reinforcing bar, the level setting rod material supported by the support portion can be used as a mark at the top level. Further, when the clip portion is attached to the lower reinforcing bar, the lower reinforcing bar contacts the inner side surface of the pair of claws and passes through the inside of the pair of claws while expanding the pair of legs outward. The tips of the pair of claws come into contact with the lower side surface of the lower reinforcing bar to be fixed to the inside of the pair of legs and do not easily come off. Even if the outer diameter of the lower reinforcing bar is slightly different, if the pair of claws has an outer diameter that abuts on the lower side surface of the lower reinforcing bar, the lower reinforcing bar is inside the pair of legs. It is fixed.

Here, it is desirable that the support portion has a fixing portion in which the lower portion of the level setting rod is fixed and a support hole through which the level setting rod penetrates and the middle portion thereof is supported. As a result, the middle part of the level setting rod whose lower part is fixed to the fixed portion is supported by the support hole, so that the level setting rod is prevented from falling or coming off when the ready-mixed concrete is placed. be able to.

Further, the top level control tool of the present invention is a level setting member attached to a level setting rod, and a pair of sandwiching portions for sandwiching the side surfaces of the level setting rod and a pair of sandwiching portions each hold each other. A pair of support rods extending in the direction away from each other and an annular portion in which the outer sides of each of the pair of support rods are connected to surround a pair of holding portions and a pair of supporting rods, and an annular portion that can be elastically deformed toward the pair of holding portions. It is desirable to include a level setting member having a portion.

In this level setting member, when the annular portion is elastically deformed by sandwiching it with fingers toward the pair of holding portions, the pair of support rods are pulled outward, and the side surfaces of the level setting rod are sandwiched accordingly. A pair of holding portions spread in a direction away from each other. As a result, the level setting member is separated from the level setting rod, so that the height of the level setting member can be adjusted. On the other hand, when the finger is released from the annular portion and elastically restored, the pair of support rods return to the inside, and the pair of holding portions return to the original state accordingly, so that the side surfaces of the level setting rod hold the pair. It is sandwiched by the portions, and the level setting member is fixed to the level setting rod.

(1) A top level control tool attached to the bar arrangement, which is a support portion that supports a level setting rod that serves as a mark for the top level, and a clip portion that is attached from the upper part of the bar arrangement. A pair of legs extending downward so as to straddle the reinforcing bars, and extending diagonally upward from the lower end of the pair of legs toward the center of the reinforcing bars, and a tip portion on the lower side surface of the reinforcing bars. According to the top level control tool provided with a clip part having a pair of claws to be abutted, the level setting rod supported on the support part can be attached to the top level by attaching the clip part from the upper part of the reinforcing bar. It can be used as a mark, and the tips of the pair of claws come into contact with the lower side surface of the bar arrangement, so that the bar arrangement is fixed to the inside of the pair of legs and is stable without easily coming off. It becomes possible to set the top level. Even if the outer diameters of the reinforcements are slightly different, the reinforcements are fixed to the inside of the pair of legs as long as the pair of claws has an outer diameter that abuts on the lower side surface of the reinforcements. Therefore, it is not necessary to prepare various types of crown level control tools according to the outer shape of the bar arrangement.

(2) A level setting bar that is a top level control tool attached to the intersection of the lower rebar and the upper rebar that extend in the horizontal direction and crosses each other in a cross, and serves as a mark for the top level. A pair of arms that are inserted below the upper reinforcing bar at the intersection of the reinforcing bars and sandwiching the lower reinforcing bar and that come into contact with the lower side surface of the upper reinforcing bar, and the lower side. A clip portion attached from the upper part of the reinforcing bar, a pair of legs extending downward so as to straddle the lower reinforcing bar, and diagonally upward from the lower end of the pair of legs toward the center of the lower reinforcing bar. According to the top-level control tool, which includes a clip portion having a pair of claw portions with a tip portion abutting on the lower side surface of the lower reinforcing bar, the pair of arms are arranged at the intersection of the reinforcing bars. It can be easily attached to the top level by inserting it into the lower side of the upper rebar and sandwiching the lower rebar, contacting it with the lower side surface of the upper rebar, and attaching the clip part from the upper part of the lower rebar. In addition to being able to serve as a mark, the lower reinforcing bars can be easily removed by fixing the lower reinforcing bars to the inside of the pair of legs by contacting the tips of the pair of claws with the lower side surface of the lower reinforcing bars. It is possible to set the crown level in a stable manner. Even if the outer diameter of the lower reinforcing bar is slightly different, if the pair of claws has an outer diameter that abuts on the lower side surface of the lower reinforcing bar, the lower reinforcing bar is inside the pair of legs. Since it is fixed, it is not necessary to prepare various types of crown level control tools according to the outer diameter of the lower reinforcing bar.

(3) According to the support portion having a fixing portion in which the lower portion of the level setting rod is fixed and a support hole through which the level setting rod penetrates and the middle portion is supported, the ready-mixed concrete is placed. It is possible to prevent the level setting bar from falling or coming off at times, and to set the top level more stably.

(4) A level setting member attached to the level setting rod, a pair of holding portions for sandwiching the side surfaces of the level setting rod, and a pair of support rods extending in directions away from each of the pair of holding portions. , A level setting member that is an annular portion that is connected to the outside of each of the pair of support rods and surrounds the pair of holding portions and the pair of supporting rods, and has an annular portion that is elastically deformable toward the pair of holding portions. For example, the height of the level setting member can be easily adjusted and the top end by elastically deforming the annular portion by pinching it with a finger toward the pair of holding portions, or by releasing the finger from the annular portion to elastically restore it. It is possible to set the level.

It is a perspective view which shows the use state of the crown level control tool in embodiment of this invention. It is a perspective view which looked at the top level control tool of FIG. 1 from another angle. It is a perspective view which looked at the top level control tool of FIG. 1 from another angle. It is a perspective view of the fixing member of FIG. It is a perspective view which looked at the fixing member of FIG. 4 from another angle. It is a side view of the fixing member of FIG. It is a front view of the fixing member of FIG. It is a perspective view of the bar material for level setting. It is a perspective view of a level setting member. It is a top view which shows the state which fixed the level setting member of the level setting bar. It is a top view which shows the state which deformed the level setting member and released the fixing to a level setting bar. It is a perspective view which shows the assembly procedure of the crown level control tool. It is a side view which shows the procedure of fixing a crown level control tool to a bar arrangement. It is a side view which shows the procedure of fixing a crown level control tool to a bar arrangement. It is a side view which shows the procedure of fixing a crown level control tool to a bar arrangement. It is a front view which shows the state of attaching the clip part from the upper part of the lower reinforcing bar. It is a front view which shows the state of attaching the clip part from the upper part of the lower reinforcing bar. It is a front view which shows the state of attaching the clip part from the upper part of the lower reinforcing bar. It is a front view which shows the state which attached the clip part to the lower reinforcing bar of a different outer diameter. It is a perspective view which shows another embodiment of a level setting member. It is a perspective view of the level setting member of FIG. 20 as seen from the back surface side. It is a side view which shows the use example of the level setting member of FIG. It is a side view which shows another use example of the level setting member of FIG.

FIG. 1 is a perspective view showing a usage state of the crown level control tool according to the embodiment of the present invention, and FIGS. 2 and 3 are perspective views of the crown level control tool of FIG. 1 as viewed from different angles.

As shown in FIGS. 1 to 3, in the crown level control tool 1 according to the embodiment of the present invention, ready-mixed concrete is placed on the horizontally arranged bar arrangement R to form a solid foundation or a floor slab (slab). It is a jig and tool used to set the top level when forming concrete structures such as. The reinforcing bar R is formed by crossing the lower reinforcing bar R1 and the upper reinforcing bar R2 extending in the horizontal direction in a cross shape, respectively. The crown level control tool 1 is attached to the intersection of the lower reinforcing bar R1 and the upper reinforcing bar R2 of the reinforcing bar R. As the lower reinforcing bar R1 and the upper reinforcing bar R2, deformed steel bars having uneven protrusions on the surface are generally used.

The crown level control tool 1 is a fixing member 2 attached to the intersection of the lower reinforcing bar R1 and the upper reinforcing bar R2 of the reinforcing bar R, and a level setting rod fixed to the fixing member 2 and used as a marker for the crown level. It is composed of a member 3 and a level setting member 4 attached to the level setting bar 3.

4 is a perspective view of the fixing member 2, FIG. 5 is a perspective view of the fixing member 2 of FIG. 4 from a different angle, FIG. 6 is a side view of the fixing member 2 of FIG. 4, and FIG. 7 is a view of the fixing member 2 of FIG. It is a front view.

As shown in FIGS. 4 to 7, the fixing member 2 is composed of a main body portion 20 formed by processing a steel plate having a thickness of about 2 mm and a clip portion 21 formed by processing a single leaf spring. It is composed. The main body portion 20 and the clip portion 21 are joined and integrated by welding or the like. The main body portion 20 has a support portion 22 that supports the level setting bar 3, and a pair of arm portions 23 that are inserted below the upper reinforcing bar R2 at the intersection of the reinforcing bars R.

The support portion 22 includes a first tongue piece portion 22A in which a part of the main body portion 20 is cut out and folded outward, and a second tongue portion 22A extending downward from the main body portion 20 and further extending in parallel with the first tongue piece portion 22A. It is composed of one part 22B. The second tongue piece portion 22B is formed with a fixing portion 24 to which the lower portion of the level setting rod 3 is fixed. The fixing portion 24 has a through hole 24A formed in the second tongue piece portion 22B and a thickening portion 24B formed around the through hole 24A on the lower surface of the second tongue piece portion 22B. A support hole 25 is formed in the first tongue piece portion 22A through which the level setting rod 3 penetrates and supports the middle portion thereof.

When the pair of arm portions 23 are inserted at positions sandwiching the lower reinforcing bar R1 on the lower side of the upper reinforcing bar R2, the pair of arm portions 23 come into contact with the lower side surface of the upper reinforcing bar R2 from the upper surface of the main body portion 20 to the main body portion. It is extended to a position lowered by 20 thicknesses.

The clip portion 21 extends downward from the pair of leg portions 21A extending downward so as to straddle the lower reinforcing bar R1 and the lower end portion 21B of the pair of leg portions 21A toward the center of the lower reinforcing bar R1 and lower. It has a pair of claw portions 21C with which the tip portion 21D abuts on the lower side surface of the side reinforcing bar R1. The clip portion 21 is attached from the upper part of the lower reinforcing bar R1 of the reinforcing bar R.

FIG. 8 is a perspective view of the level setting bar 3. As shown in FIG. 8, the level setting rod 3 has a columnar elastic main body portion 30 having an outer diameter slightly smaller than the inner diameter of the support hole 25 of the fixing member 2. The upper end portion of the main body portion 30 has a diameter-expanded portion 31 on which a finger is hooked when the main body portion 30 is pulled out. Further, the lower end portion of the main body portion 30 has a fixed portion 32 for fixing to the fixing portion 24 of the fixing member 2.

The fixed portion 32 is composed of a reduced diameter portion 32A having an outer diameter slightly smaller than that of the through hole 24A of the fixing portion 24 of the fixing member 2, and a hooking portion 32B having an outer diameter larger than that of the through hole 24A. The hooking portion 32B has a tapered shape, and after passing through the through hole 24A due to elastic deformation, elastically returns to be hooked on the thickening portion 24B formed around the through hole 24A on the lower surface of the second tongue piece portion 22B. It has become like.

9 is a perspective view of the level setting member 4, FIG. 10 is a plan view showing a state in which the level setting member 4 is fixed to the level setting rod 3, and FIG. 11 is a level setting rod by deforming the level setting member 4. It is a top view which shows the state which the fixation to 3 is released.

As shown in FIG. 9, the level setting member 4 includes a pair of holding portions 40 that sandwich the side surfaces of the level setting rod 3, and a pair of support rods 41 that extend in directions away from each of the pair of holding portions 40. , Each outside of the pair of support rods 41 is connected, and has an annular portion 42 that surrounds the pair of holding portions 40 and the pair of support rods 41, and a pair of grip portions 43 that sandwich the annular portion 42 with fingers.

The pair of sandwiching portions 40 has a shape in which a substantially cylindrical shape is divided into two, and has a concave surface 40A corresponding to the side surface of the columnar main body portion 30 of the level setting rod 3 to be sandwiched. Further, the concave surface 40A of the holding portion 40 is provided with a claw portion 44 that bites into the level setting rod 3 and acts as a non-slip when the level setting rod 3 is sandwiched.

The annular portion 42 is formed in an annular shape by four extending portions extending from the outside of each of the pair of support rods 41 toward the outside of the divided portion 40B of the pair of holding portions 40, and the divided portion 40B of the pair of holding portions 40. It can be elastically deformed toward. The pair of grip portions 43 are provided on the outside of the annular portion 42 and on the outside of the divided portion 40B of the pair of holding portions 40. A thin-walled portion 43A is formed in the central portion of the pair of grip portions 43 so that the annular portion 42 is easily elastically deformed toward the divided portion 40B of the pair of holding portions 40.

In this level setting member 4, as shown in FIG. 11, when the annular portion 42 is elastically deformed in the Y direction toward the pair of holding portions 40, the pair of support rods 41 are pulled outward in the X direction, respectively. Along with this, the pair of holding portions 40 that hold the side surfaces of the level setting rod 3 expand in the X direction away from each other. As a result, the level setting member 4 is separated from the level setting bar 3, so that the height of the level setting member 4 can be adjusted. On the other hand, when the annular portion 42 is elastically restored, the pair of support rods 41 return inward, and the pair of holding portions 40 return to the original state accordingly, so that the level setting rods are as shown in FIG. The side surfaces of the material 3 are sandwiched by a pair of sandwiching portions 40, and the level setting member 4 is fixed to the level setting rod 3.

Next, how to use the top level control tool 1 will be described. 12 is a perspective view showing an assembly procedure of the top level control tool 1, FIGS. 13 to 15 are side views showing a procedure for fixing the top level control tool 1 to the reinforcing bar R, and FIGS. 16 to 18 are lower sides. It is a front view which shows the state of attaching the clip part 21 from the upper part of the reinforcing bar R1.

First, as shown in FIG. 12, the level setting rod 3 to which the level setting member 4 is attached is inserted into the support hole 25 of the first tongue piece portion 22A of the fixing member 2, and the lower end portion of the level setting rod 3 is inserted. The fixed portion 32 of the above is inserted into the through hole 24A of the second tongue piece portion 22B and fixed.

Next, as shown in FIGS. 13 and 14, the pair of arm portions 23 of the crown level control tool 1 are located below the upper reinforcing bar R2 at the intersection of the reinforcing bars R and sandwiching the lower reinforcing bar R1. Each of them is inserted into contact with the lower side surface of the upper reinforcing bar R2, and the clip portion 21 is attached from the upper part of the lower reinforcing bar R1 as shown in FIG.

At this time, as shown in FIG. 16, the lower reinforcing bar R1 comes into contact with the inner side surface of the pair of claw portions 21C of the clip portion 21, and as shown in FIG. 17, the pair of leg portions 21A is expanded outward while being paired. Passes inside the claw portion 21C of. Then, as shown in FIG. 18, it enters the inside of the pair of leg portions 21A, the tip portion 21D of the pair of claw portions 21C abuts on the lower side surface of the lower reinforcing bar R1, and the lower reinforcing bar R1 is the pair. It is fixed to the inside of the leg portion 21A. In this state, even if an upward force is applied to the top level control tool 1, the tip portion 21D of the pair of claw portions 21C of the clip portion 21 is caught by the lower reinforcing bar R1 and does not easily come off. Therefore, in the top level control tool 1, the top level can be stably set by using the level setting bar 3 supported by the support portion 22 as a mark of the top level.

Further, in the top level control tool 1, as shown in FIG. 19, even if the outer diameter of the lower reinforcing bar R1 is slightly different, the pair of claw portions 21C is attached to the lower side surface of the lower reinforcing bar R1. If the outer diameter is abutting, the lower reinforcing bar R1 is fixed to the inside of the pair of leg portions 21A. Therefore, it is not necessary to prepare various types of crown level control tools 1 according to the outer diameter of the lower reinforcing bar R1, and a common crown level control tool 1 is used for the lower reinforcing bars R1 having different outer diameters. be able to. For example, it is possible to use a clip portion 21 common to the names D13 and D16, D16 and D19, and D19 and D22 of the deformed reinforcing bars.

Further, in the top level control tool 1 in the present embodiment, the lower portion of the level setting bar 3 is fixed to the fixing portion 24, and the middle portion thereof is supported by the support hole 25, so that the level is reached when the ready-mixed concrete is placed. The setting rod 3 is prevented from falling or coming off, and the top level can be set more stably.

Further, the crown level control tool 1 in the present embodiment has a pair of holding portions 40 that hold the side surfaces of the level setting bar 3 and a pair of support rods 41 that extend in directions away from each of the pair of holding portions 40. And the annular portion 42 which is connected to the outside of each of the pair of support rods 41 and surrounds the pair of holding portions 40 and the pair of supporting rods 41, and which is elastically deformable toward the pair of holding portions 40. The level setting member 4 has an annular portion 42 that is elastically deformed by being pinched by a finger toward a pair of holding portions 40, or is elastically restored by releasing a finger from the annular portion 42. It is possible to easily adjust the height to set the crown level.

Next, another embodiment of the level setting member will be described. 20 is a perspective view showing another embodiment of the level setting member, FIG. 21 is a perspective view of the level setting member of FIG. 20 as viewed from the back surface side, and FIG. 22 is a side view showing a usage example of the level setting member of FIG. FIG. 23 is a side view showing another usage example of the level setting member of FIG. 20.

The level setting member 4A shown in FIGS. 20 and 21 has a tongue piece 45 projecting so as to be flush with the lower surface of the level setting member 4A described above. The tongue piece 45 is a rectangular shape extending toward both outer sides of the pair of support rods 41. In FIGS. 20 to 23, the same components as those described above are designated by the same reference numerals, and detailed description thereof will be omitted.

In the level setting member 4A having the above configuration, as shown in FIG. 22, when the crown level control tool 1 is attached to the reinforcing bar R to adjust the height of the level setting member 4A, the scale (ruler) 50 is placed on the upper reinforcing bar R2. The length from the upper reinforcing bar R2 to the lower surface of the tongue piece 45 of the level setting member 4A can be easily measured, and the concrete covering thickness can be easily set.

Further, as shown in FIG. 23, the scale 50 is applied to the bottom surface 51 for constructing a concrete structure such as a solid foundation or a floor slab (slab), and the length from the bottom surface 51 to the lower surface of the tongue piece 45 of the level setting member 4A. By measuring, it becomes possible to easily set the thickness of the concrete structure.

The top level control tool of the present invention is useful for setting the top level of concrete structures such as solid foundations and decks (slabs) constructed by placing concrete on horizontally arranged reinforcing bars. ..

1 Top level control tool 2 Fixing member 3 Level setting bar 4, 4A Level setting member 20 Main body 21 Clip 21A Leg 21B Lower end 21C Claw 21D Tip 22 Support 22A 1st tongue piece 22B No. 2 Tongue piece part 23 Arm part 24 Fixed part 24A Through hole 24B Thickening part 25 Support hole 30 Main body part 31 Diameter expansion part 32 Fixed part 32A Reduced diameter part 32B Hooking part 40 Holding part 40A Concave surface 40B Divided part 41 Support rod 42 Circular part 43 Grip part 43A Thin-walled part 44 Claw part 45 Tongue piece R Reinforcing bar R1 Lower reinforcing bar R2 Upper reinforcing bar

Claims (5)

It is a top level control tool that can be attached to the bar arrangement.
A main body formed by processing a steel plate, and having a support portion for supporting a level setting bar that serves as a marker for the top level, and a main body .
A clip portion attached from the upper part of the bar arrangement, a pair of legs extending downward so as to straddle the bar arrangement, and an obliquely upward direction from the lower end of the pair of legs toward the center of the bar arrangement. A clip portion having a pair of claw portions with a tip portion abutting on the lower side surface of the reinforcing bar is provided .
The support part
A first tongue piece portion in which a part of the main body portion is cut out and folded outward, and a support hole is formed through which the level setting rod material penetrates and a support hole for supporting the middle portion thereof is formed. When,
It is a second tongue piece portion that is bent and extended downward from the main body portion at the base end portion of the first tongue piece portion, and further bent and extended in a direction parallel to the first tongue piece portion, and is the level. With the second tongue piece part where the fixing part where the lower part of the setting rod is fixed is formed
Top level control tool composed of . It is a top level control tool that is attached to the intersection of the lower reinforcing bars and the upper reinforcing bars that extend horizontally, respectively.
A main body formed by processing a steel plate, a support portion that supports a level setting bar that serves as a marker for the top level, and a lower side that is below the upper reinforcing bar at the intersection of the reinforcing bars. A main body having a pair of arms that are inserted at positions sandwiching the reinforcing bar and that come into contact with the lower side surface of the upper reinforcing bar.
A clip portion attached from the upper part of the lower reinforcing bar, a pair of legs extending downward so as to straddle the lower reinforcing bar, and a pair of legs toward the center of the lower reinforcing bar from the lower end portion. A clip portion having a pair of claw portions with a tip portion abutting on the lower side surface of the lower reinforcing bar is provided .
The support part
A first tongue piece portion in which a part of the main body portion is cut out and folded outward, and a support hole is formed through which the level setting rod material penetrates and a support hole for supporting the middle portion thereof is formed. When,
It is a second tongue piece portion that is bent and extended downward from the main body portion at the base end portion of the first tongue piece portion, and further bent and extended in a direction parallel to the first tongue piece portion, and is the level. With the second tongue piece part where the fixing part where the lower part of the setting rod is fixed is formed
Top level control tool composed of . The crown level control tool according to claim 2 , wherein the pair of legs extends downward so as to straddle the lower reinforcing bar without contacting the lower reinforcing bar . The fixing portion has a through hole formed in the second tongue piece portion and a thickened portion formed around the through hole on the lower surface of the second tongue piece portion.
The level setting rod has a fixed portion for fixing to the fixed portion, and has a fixed portion.
The fixed portion is a reduced diameter portion having an outer diameter slightly smaller than that of the through hole and a hook portion having an outer diameter larger than that of the through hole. The crown level control tool according to any one of claims 1 to 3, which is composed of a hooking portion that is hooked on the thickened portion by elastically returning . It is a level setting member attached to the level setting rod.
A pair of holding portions that hold the side surfaces of the level setting bar, and
A pair of support rods extending from each of the pair of holding portions in a direction away from each other, and a pair of support rods.
A level setting in which the outer sides of each of the pair of support rods are connected to each other and have an annular portion that surrounds the pair of holding portions and the pair of supporting rods, and has an annular portion that can be elastically deformed toward the pair of holding portions. The crown level control tool according to any one of claims 1 to 4, which includes a member.

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